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{²I_R00.sch¡þ
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ãI_R32.sch¡þI_R80.sch’)zD“I501ileaf_page_string1:6¥	öä¥	öä¡6!²âdect³6¡þÉ²These´µfilesµcontainµmodelsµofµaµbasicµDECTµsystem.µTheµlogical¡þchannelsµareµmappedµontoµphysicalµchannelsµandµtransmittedµover¡þZanµindoorµmultipathµchannelµ(statisticalµmodelµasµproposedµbyµSaleh¡þ£andµValenzuela).µAµsampleµreceiverµmodelµisµprovidedµforµslotµand¡þìsymbolµtimingµsynchronizationµandµforµdecompositionµofµtheµslots¡þ4intoµtheµlogicalµchannels.µTheµlogicalµchannelsµareµgroupedµas¡þ}explainedµinµtheµpreviousµsection,µOverviewµofµtheµDECT¡þÆSpecification",µthusµallowingµeasyµanalysisµofµtheµsystemµbehavior¡þforµtheµdifferentµprotectionµschemesµdefinedµinµtheµDECTµstandard.¡þ·Bitµerrorµratesµcanµbeµanalyzedµindividuallyµfor¡þ?²S²¡:?Non³protectedµinformationµchannelsµI²¤N¤ÿô²µorµSI²¤N¤ÿô¡þ©²²S²¡:©ProtectedµinformationµchannelµI²¤P¤ÿô¡þ²²S²¡:ChannelsµtransmittedµinµE³typeµB³fieldsµ(C²¤F¤ÿô²¤ÿú,µG²¤F¤ÿô²¤ÿú,µ...)¡þ|²S²¡:|ChannelsµtransmittedµinµtheµA³fieldµ(Q,µN,µP¤ÿù,µC²¤S¤ÿô²,µB²¤S¤ÿô²,µ...)¡þ/Additionally,µtheµnumberµofµlostµslotsµdueµtoµfailedµdetectionµofµthe¡þxsynchronizationµfieldµisµgiven.µTheµnumberµofµcorruptedµA³fields¡þÀreceivedµthatµrequireµretransmissionµisµgivenµasµwell.µNoteµthat¡þ	retransmissionµisµnotµincludedµinµtheµmodels.¡þ±Asµindicatedµbyµtheµfileµnameµlistedµbelow,µthereµareµseparate¡þúexamplesµforµallµphysicalµchannelsµdefined:¡þ	²I_R00.sch¡“	²reference´µschematicµforµtheµphysicalµchannelµR00¡þ	½²I_R08j.sch¡“	½²referenceµschematicµforµtheµphysicalµchannelµR08j¡þ	ú²I_R32.sch¡“	ú²referenceµschematicµforµtheµphysicalµchannelµR32¡þ
8²I_R80.sch¡“
8²referenceµschematicµforµtheµphysicalµchannelµR80¡þ
Ì²These´µreferenceµschematicsµareµdescribedµinµmoreµdetailµinµthe¡þfollowingµsections.’zRD“I501ileaf_page_string1:7¥	öä¥	öä¡=!²âdect³7¡,É²I_R00.sch²´µµ(PhysicalµChannelµR00)¡þ9²ThisµisµanµexampleµofµhowµtoµuseµtheµCOSSAPµDECTµlibraryµto¡þ‚analyzeµtheµphysicalµchannelµR00µdefinedµinµtheµDECTµstandard¡þÊprETSµ300µ175µ(Julyµ1995).¡þSThroughoutµthisµexample,µallµtimesµareµmeasuredµinµmsµandµall¡þœfrequenciesµinµkHz.¡,E²Frame´µAssemblyµandµModulation¡þ³²Physical´µpacketsµP00µareµconstructedµbyµappendingµ40µrandomµtail¡þûbitsµtoµ8µrandomµheaderµbits,µapplyingµcyclicµredundancyµcodingµand¡þDinsertingµtheµ32³bitµsynchronizationµfield.µTheµsynchronizationµfield¡þisµselectedµaccordingµtoµtheµslotµnumberµestablishedµbyµparameter¡þÕ²SLOT_NUMBER².µAnµappropriateµnumberµofµguardµbitsµisµappendedµto¡þobtainµtheµ480µbitsµinµaµfull³slot.¡þ§Inµthisµexample,µtheµradioµchannelµisµstatic.µTherefore,µtheµremaining¡þð23µslotsµofµaµDECTµframeµareµnotµmodeledµinµorderµtoµimprove¡þ8simulationµperformance.µThisµmeansµthatµtheµselectedµslotµis¡þcontinuouslyµusedµforµmodulationµandµtheµslotµnumberµisµconstant.¡þÊBaseµstationµorµmobileµstationµtransmissionsµcanµbeµselectedµbyµan¡þappropriateµslotµnumber.µTheµmodulatorµoutputµmatchesµtheµreal¡þ[worldµbehaviorµbecauseµtheµguardµbitsµareµincludedµinµtheµmodel.¡þäTheµmodulatorµmodelµcanµbeµcontrolledµbyµtheµfollowingµthree¡þ	-parameters:¡þ	 MODULATION_INDEX¡X	þEstablishesµtheµmodulationµindexµofµtheµGFSKµmodulator.¡þ
pN_SAMPLES_PER_BIT¡X
ÎEstablishesµtheµnumberµofµoutputµsamplesµperµtransmittedµbit¡Xandµthusµtheµsimulationµbandwidthµforµtheµradioµchannel.’RD“I501ileaf_page_string1:8¥	öä¥	öä¡6!²âdect³8¡þÉ²TIMING_ERROR_IN_BITS¡X2Establishes´µaµtimingµoffsetµspecifiedµinµfractionsµofµbits.¡,²Radio´µChannel¡þ‘²A´µstatisticalµmodelµforµindoorµradioµmultipathµchannelsµproposedµby¡þÚSalehµandµValenzuelaµisµusedµtogetherµwithµaµmodelµaddingµwhite¡þ#Gaussianµnoiseµtoµmodelµtheµradioµchannel.µThisµchannelµmodelµis¡þkstaticµforµaµgivenµrandomµseedµforµtheµ²Saleh_Channel².µForµdetails,µsee¡þ´theµmodelµdescriptionµinµtheµmodelµdefinitionµ(².mdef²)µfileµforµthat¡þýmodel.¡þ¦Theµsignalµpowerµatµtheµ²Saleh_Channel²µmodelµoutputµisµnormalizedµto¡þï1.0µandµinterpretedµasµ0µdB.µItµisµthenµscaledµtoµtheµreceiverµinput¡þ8powerµestablishedµbyµparameterµ²INPUT_POWER_dBm².µTheµsubsequent¡þ€modelµaddingµwhiteµGaussianµnoiseµisµparameterizedµsuchµthat¡þÉnoiseµwithµaµfixedµpowerµdensityµisµadded.¡þrTheµnoiseµpowerµisµincreasedµaccordingµtoµtheµradioµfrontendµnoise¡þ»figureµspecifiedµbyµparameterµ²NOISE_FIGURE_dB².µThisµparameterµcan¡þbeµusedµtoµmodelµreceiverµimperfections.¡þ­Theµparametersµofµtheµ²AWGNQC²µmodelµareµselectedµasµfollows:¡þ	7²S²¡:	7Theµsignalµpowerµisµclaimedµtoµbeµknownµ(²SIGNAL_POWER_KNOWN²µ=µ1)¡:	}andµspecifiedµasµ1µ(²SIGNAL_POWER²µ=µ1.).µAsµabove,µthisµvalueµis¡:	Äinterpretedµasµ0µdB.¡þ
.²S²¡:
.Theµparameterµ²FACTOR²µisµsetµtoµtheµnumberµofµsamplesµperµtrans·³¡:
tmittedµbitµtoµadjustµtheµtotalµnoiseµpowerµinµtheµsimulationµband·³¡:
»width.’ûD“I501ileaf_page_string1:9¥	öä¥	öä¡=!²âdect³9¡þÉ²With´µtheseµsettings,µtheµnoiseµpowerµinµtheµsignalµbandwidthµcanµbe¡þenteredµasµtheµreciprocalµofµtheµsignal³to³noiseµratio.µBecauseµthe¡þZparameterµ²SNR²µmustµbeµenteredµinµdB,µtheµnoiseµpowerµisµentered¡þ£signµinverted.¡þBForµaµgivenµnoiseµtemperatureµT,µtheµnoiseµpowerµPµinµtheµsignal¡þŠbandwidthµequals:¡þ	²P´µ=µkµTµfs¡þf²where¡Xèk´µ=µ1.38066E³23µJ/Kµµ(Boltzmannµconstant)¡X.fsµ=µ1.152E6µHzµµµµµµµµµµµ(DECTµbitµrate).¡þËThen,µ²SNR²µmustµbeµsetµtoµ-10µlogµ(P)µ-µ²NOISE_FIGURE_dB¡þi²Forµaµnoiseµtemperatureµofµ300µK,µthisµresultsµin:¡þè²SNR´µ=µ143.2µ-µNOISE_FIGURE_dB¡,q²Reference´µReceiver¡þî²This´µexampleµconfigurationµalsoµprovidesµaµreferenceµreceiver¡þ7consistingµofµtheµfollowing:¡þ¹²S²¡:¹5th³orderµButterworthµlowpassµfilterµwithµadjustableµcutof¤ÿÿfµfrequen·³¡:ÿcyµ(parameterµ²F_CUTOFF_3dB_kHz_BUTF²)¡þ	f²S²¡:	fAnalogµFM³demodulatorµfollowedµbyµanµidealµlowpassµfilterµ(cutof¤ÿÿf¡:	¬frequencyµspecifiedµbyµparameterµ²F_CUTOFF_3dB_kHz_DEMOD²)¡þ
²S²¡:
Hardµdecisionµdeviceµwithµadjustableµthresholdµ(parameter¡:
Y²DECISION_THRESHOLD²)¡þ
¿²S²¡:
¿Correlator’û‰D“I501ileaf_page_string1:10¥	öä¥	öä¡6!²âdect³10¡þÉ²The´µcorrelatorµcanµbeµadjustedµbyµseveralµparametersµincludingµa¡þthresholdµforµtheµdetectionµofµtheµsynchronizationµfieldµ(parameter¡þZ²CORRELATOR_THRESHOLD²)µandµtheµlengthµofµtheµsearchµwindow¡þ£(parameterµ²LENGTH_OF_SEARCH_WINDOW²).¡þGForµdetailsµofµtheµdemodulatorµandµtheµcorrelator,µseeµthe¡þdescriptionsµofµtheµcorrespondingµmodelsµ²DECT_DEMOD²µand¡þÙ²DECT_CORRELATOR².¡þ}Theµcorrelatorµsearchesµforµtheµsynchronizationµfieldµspecifiedµinµthe¡þÆfileµ²$COSSAP_DIR/models/dect/preamble_dl.am².µThisµisµthe¡þsynchronizationµfieldµforµfixedµpartµtransmissionsµduringµslotsµ0µto¡þW11.µTheµsynchronizationµfieldµforµportableµpartµtransmissions¡þ occurringµduringµslotsµ12µtoµ23µisµbinaryµinvertedµwithµrespectµtoµthe¡þèfixedµpartµsynchronizationµfield.µTherefore,µtheµparameter¡þ1²InvertPreamble²µofµtheµcorrelatorµisµsetµtoµ1µforµslotsµ12µtoµ23µandµtoµ0¡þzforµtheµotherµslots.µThisµallowsµforµaµsingleµschematicµforµuplinkµand¡þÂdownlink.¡þgAµfixedµscalarµmultiplierµisµbuiltµinµasµaµplaceholderµforµanµAGC¡þ¯circuit.¡þTAµfrequencyµerrorµinµtheµreceiverµcanµbeµmodeledµbyµsettingµthe¡þœparameterµ²FREQUENCY_OFFSET_kHz²µasµrequired.¡,	q²Frame´µDecomposition¡þ	ò²The´µsynchronizationµfieldµandµtheµguardµbitsµareµremovedµbyµthe¡þ
;correlator.µThatµis,µonlyµtheµD³fieldµappearsµatµtheµcorrelatorµoutput.¡þ
ƒBecauseµtheµD00³fieldµisµidenticalµtoµtheµA³field,µthisµsignalµis¡þ
ÌpassedµdirectlyµtoµtheµA³fieldµdecoderµ(²CYCLIC_DECODER_2²)µwhereµthe¡þredundancyµbitsµareµcheckedµandµremoved.’‰“D“I501ileaf_page_string1:11¥	öä¥	öä¡#!²âdect³11¡þÉ²The´µparameterµ²N_CORRECT_CRC_A²µspecifiesµwhetherµorµnotµtheµerror¡þcorrectionµcapabilitiesµofµtheµA³fieldµdecoderµareµused.¡þºAfterµthat,µtheµA³fieldµisµsplitµintoµtheµH³fieldµandµtheµT³fieldµfor¡þevaluation.¡,Þ²Evaluation¡þb²1)µChannelµImpulseµResponse¡þTheµcomplexµvaluedµchannelµimpulseµresponseµofµtheµ²SALEH_CHANNEL²¡þSmodelµisµstoredµinµtheµoutputµdatasetµ²CH_IMP_RESPONSE².¡þü2)µLostµSlots¡þ¤Theµcorrelatorµindicatesµforµeachµsearchµwindowµ(slot)µwhetherµor¡þínotµtheµsynchronizationµfieldµhasµbeenµdetected.µTheµnumberµof¡þ6slotsµforµwhichµdetectionµfailedµisµcountedµasµwellµasµtheµtotal¡þ~numberµofµevaluatedµslots.µTheµratioµbetweenµtheseµnumbersµisµalso¡þÇcomputed.µTheseµresultsµareµstoredµinµtheµoutputµdatasetµ²LOST_SLOTS².¡þo3)µBadµA³Fields¡þ	TheµA³fieldµdecoderµprovidesµstatusµinformationµforµeachµreceived¡þ	acodeµwordµwhereµoneµcodeµwordµcorrespondsµtoµoneµslot.µBecause¡þ	©thisµinformationµisµrepeatedµforµanyµsingleµbitµofµtheµcodeµword,µthe¡þ	òstatusµbitsµareµsampledµatµaµrateµofµ1µperµslot,µandµtheµnumberµof¡þ
;A³fieldsµreceivedµwithµuncorrectableµerrorsµandµtheµtotalµnumberµof¡þ
ƒA³fieldsµevaluatedµareµcounted.µTheµratioµbetweenµtheseµnumbersµis¡þ
Ìalsoµcomputed.µTheseµresultsµareµstoredµinµtheµoutputµdataset¡þ²BAD_A_FIELD².’“D“I501ileaf_page_string1:12¥	öä¥	öä¡6!²âdect³12¡þÉ²4)´µH³FieldµErrors¡þlTheµinformationµtransmittedµinµtheµH³fieldµisµreplicatedµasµa¡þ´referenceµandµcomparedµwithµtheµreceivedµH³fieldµdata.µInµorderµto¡þýkeepµtheµcomparisonµsynchronized,µoneµH³fieldµmustµbeµremoved¡þFfromµtheµreferenceµsignalµifµtheµcorrelatorµfailsµtoµdetectµthe¡þŽsynchronizationµfieldµforµtheµcurrentµslot.µThisµisµbecauseµthe¡þ×informationµcarriedµinµthisµslotµisµlost.µTheµnumberµofµerroneous¡þ H³fieldµbitsµreceivedµisµcountedµasµwellµasµtheµtotalµnumberµof¡þhreceivedµH³fieldµbitsµandµtheµBERµisµcomputed.µTheseµresultsµare¡þ±storedµinµtheµoutputµdatasetµ²ERROR_H².¡þT5)µT³FieldµErrors¡þöTheµinformationµtransmittedµinµtheµT³fieldµisµreplicatedµasµa¡þ?referenceµandµcomparedµwithµtheµreceivedµT³fieldµdata.µInµorderµto¡þ‡keepµtheµcomparisonµsynchronized,µoneµT³fieldµmustµbeµremoved¡þÐfromµtheµreferenceµsignalµifµtheµcorrelatorµfailsµtoµdetectµthe¡þsynchronizationµfieldµforµtheµcurrentµslot.µThisµisµbecauseµthe¡þainformationµcarriedµinµthisµslotµisµlost.µTheµnumberµofµerroneous¡þªT³fieldµbitsµreceivedµisµcountedµasµwellµasµtheµtotalµnumberµof¡þóreceivedµT³fieldµbitsµandµtheµBERµisµcomputed.µTheseµresultsµare¡þ;storedµinµtheµoutputµdatasetµ²ERROR_T².¡þÞ6)µA³FieldµErrors¡þ	TheµcomparisonµresultsµfromµtheµH³fieldµandµtheµT³fieldµare¡þ	ÉcombinedµtoµobtainµaµsingleµnumberµforµtheµA³field.µTheseµresults¡þ
areµstoredµinµtheµoutputµdatasetµ²ERROR_A².’¨D“I501ileaf_page_string1:13¥	öä¥	öä¡#!²âdect³13¡,Ã²Global´µParameters¡þ/²The´µfollowingµglobalµparametersµofµtheµexampleµschematicµmustµbe¡þxdefinedµinµanµassignmentµfile.µInµtheµfollowingµlist,µtheµparameter¡þÁtypeµisµshownµinµparenthesisµafterµtheµparameterµname.µInteger¡þ	parametersµareµidentifiedµbyµ(I)µandµfloatingµpointµ(real)µparameters¡þRbyµ(R).¡þÚForµanµexample,µseeµ²I_R00.asn².¡þLSLOT_NUMBERµ(I)¡XªEstablishesµtheµslotµselectedµforµtransmission.¡X²SLOT_NUMBER²µcanµtakeµanyµintegerµvalueµinµtheµrangeµ0µtoµ23,¡Xawhereµ0µtoµ11µrepresentsµfixedµpartµtransmissionsµandµ12µtoµ23¡X§representsµportableµpartµtransmissions.¡þMODULATION_INDEXµ(R)¡XvModulationµindexµforµtheµGFSKµmodulation.µTypicallyµ0.5µfor¡X¼DECTµsystems.¡þ-N_SAMPLES_PER_BITµ(I)¡XŠEstablishesµtheµnumberµofµsamplesµperµtransmittedµbitµatµthe¡XÑmodulatorµoutputµandµthusµtheµsimulationµbandwidthµforµtheµradio¡Xchannel.¡þˆTIMING_ERROR_IN_BITSµ(R)¡XæEstablishesµaµtimingµoffsetµinµfractionsµofµbits.µTheµlegalµrangeµis¡X	,(R)µ-0.5µtoµ0.5.µNoteµthatµtheµnumberµenteredµisµroundedµto¡X	sintegerµmultiplesµofµ1/²N_SAMPLES_PER_BIT².¡þ	ãRANDOM_SEED_SALEHµ(I)¡X
ASpecifiesµtheµstartingµvalueµofµtheµrandomµnumberµgeneratorµin¡X
‡theµ²SALEH_CHANNEL²µmodel.µTheµchannelµimpulseµresponseµthatµis¡X
Îreturnedµinµtheµoutputµdatasetµ²CH_IMP_RESP²µdependsµonµthis¡Xparameter.’¨õD“I501ileaf_page_string1:14¥	öä¥	öä¡6!²âdect³14¡þÉ²RESPONSE_LENGTH´µ(I)¡X*Specifiesµtheµlengthµ(inµsamples)µofµtheµchannelµimpulse¡Xpresponse.¡þçINPUT_POWER_dBmµ(R)¡XHSpecifiesµtheµpowerµofµtheµreceivedµsignalµatµtheµreceiverµinput.¡XŽItµisµmeasuredµinµdBm.¡þNOISE_FIGURE_dBµ(R)¡XeSpecifiesµtheµradioµfrontendµnoiseµfigureµinµdB.µItµisµusedµto¡X¬increaseµtheµnoiseµpowerµinµorderµtoµmodelµreceiver¡Xòimperfections.¡þiFREQUENCY_OFFSET_kHzµ(R)¡XÊSpecifiesµaµfrequencyµerrorµinµkHz.¡þ@F_CUTOFF_3dB_kHz_BUTFµ(R)¡X¡Specifiesµtheµ3µdBµcutoffµfrequencyµ(measuredµinµkHz)µofµthe¡XçButterworthµfilterµatµtheµreceiverµinput.¡þ^F_CUTOFF_3dB_kHz_DEMODµ(R)¡X¿Specifiesµtheµ3µdBµcutoffµfrequencyµ(measuredµinµkHz)µofµthe¡Xlowpassµfilterµatµtheµdemodulatorµoutput.¡þ|DECISION_THRESHOLDµ(R)¡XÜSpecifiesµtheµthresholdµforµtheµhardµdecisionµatµtheµdemodulator¡X	#output.µInµtheµidealµcaseµitµshouldµbeµsetµtoµ0.0;µhowever,µitµcan¡X	jbeµsetµtoµaµdifferentµvalueµinµorderµtoµcompensateµaµfrequency¡X	°offset.¡þ
'CORRELATOR_THRESHOLDµ(I)¡X
‡Specifiesµtheµthresholdµforµpreambleµdetectionµinµtheµcorrelator.¡X
ÎTheµnumberµofµtoleratedµerrorsµinµtheµsynchronizationµfieldµis¡X32-²CORRELATOR_THRESHOLD².’õ!D“I501ileaf_page_string1:15¥	öä¥	öä¡#!²âdect³15¡þÉ²LENGTH_OF_SEARCH_WINDOW´µ(I)¡X,Specifiesµtheµwindowµinµwhichµtheµcorrelatorµsearchesµforµthe¡Xrsynchronizationµfield.µItµisµenteredµasµtheµnumberµofµbitsµinµthis¡X¹window.¡X4Forµaµdetailedµdescription,µseeµtheµdescriptionµinµtheµmodel¡Xzdefinitionµ(².mdef²)µfileµofµtheµ²DECT_CORRELATOR²µmodel.¡þõN_CORRECT_CRC_Aµ(I)¡XWSpecifiesµwhetherµorµnotµtheµerrorµcorrectionµcapabilitiesµofµthe¡XžA³fieldµdecoderµareµused:¡”&²N_CORRECT_CRC_A²µ=µ0:µNoµerrorµcorrectionµisµperformed.¡”•²N_CORRECT_CRC_A²µ=µ1:µOneµerrorµperµcodeµwordµisµcorrected.¡”²N_CORRECT_CRC_A²µ=µ2:µUpµtoµtwoµerrorsµperµcodeµwordµare¡”Ncorrected.¡þ°NUM_SLOTSµ(I)¡XSpecifiesµtheµnumberµofµslotsµprocessedµbeforeµtheµsimulation¡XZstops.µBecauseµonlyµoneµslotµperµframeµisµprocessedµfor¡X simulationµefficiency,µthisµnumberµalsoµequalsµtheµnumberµof¡Xçframes.¡,¤²Output´µDatasets¡þ	²CH_IMP_RESPONSE¡X	cContains´µtheµcomplexµvaluedµchannelµimpulseµresponseµofµthe¡X	ªSALEH_CHANNELµmodel.¡þ
%LOST_SLOTS¡X
‡Containsµtheµnumberµofµslotsµforµwhichµtheµdetectionµofµthe¡X
Îsynchronizationµfieldµfailedµandµtheµtotalµnumberµofµevaluated¡Xslots.µTheµratioµbetweenµtheseµnumbersµisµprovidedµasµwell.’!?D“I501ileaf_page_string1:16¥	öä¥	öä¡6!²âdect³16¡þÉ²BAD_A_FIELD¡X0Contains´µtheµnumberµofµslotsµforµwhichµtheµA³fieldµwasµreceived¡Xvwithµuncorrectableµerrorsµandµtheµtotalµnumberµofµevaluated¡X½A³fields.µTheµratioµbetweenµtheseµnumbersµisµprovidedµasµwell.¡þ?ERROR_H¡X¦ContainsµtheµnumberµofµerroneousµH³fieldµbitsµandµtheµtotal¡XínumberµofµevaluatedµH³fieldµbits.µTheµH³fieldµBERµisµprovidedµas¡X3well.¡þ¶ERROR_T¡XContainsµtheµnumberµofµerroneousµT³fieldµbitsµandµtheµtotal¡XcnumberµofµevaluatedµT³fieldµbits.µTheµT³fieldµBERµisµprovidedµas¡Xªwell.¡þ,ERROR_A¡X“ContainsµtheµnumberµofµerroneousµA³fieldµbitsµandµtheµtotal¡XÙnumberµofµevaluatedµA³fieldµbits.µTheµA³fieldµBERµisµprovidedµas¡X well.¡,ö²I_R08j.sch²µµ(PhysicalµchannelµR08j)¡þx²ThisµisµanµexampleµofµhowµtoµuseµtheµCOSSAPµDECTµlibraryµto¡þÀanalyzeµtheµphysicalµchannelµR08jµdefinedµinµtheµDECTµstandard¡þ		prETSµ300µ175µ(Julyµ1995).¡þ	¬Throughoutµthisµexample,µallµtimesµareµmeasuredµinµmsµandµall¡þ	ôfrequenciesµinµkHz.’?ëD“I501ileaf_page_string1:17¥	öä¥	öä¡#!²âdect³17¡,Ã²Frame´µAssemblyµandµModulation¡þC²a)´µB³fieldµGeneration¡þåTheµB³fieldµgenerator,µ²B_FIELD_GEN_08j²,µcreatesµE³typeµorµU³type¡þ.B³fieldsµdependingµonµtheµvaluesµreadµfromµtheµinputµsignalsµH4,¡þvH5,µandµH6µwhereµtheµcorrespondingµbitsµofµtheµcurrentµA³fieldµare¡þ¿entered.µTheµU³typeµB³fieldsµareµgeneratedµinµprotectedµor¡þnon³protectedµformatµdependingµonµaµcontrolµsignal.µHowever,µa¡þPconstantµisµassignedµtoµthisµsignalµinµthisµexample.µTheµglobal¡þ™parameterµ²I_PROTECT²µisµusedµtoµselectµbetweenµprotectedµand¡þânon³protectedµtransmissionµofµinformationµchannelµdata.µTheµlength¡þ*ofµtheµB³fieldµcanµbeµadjustedµwithµtheµparameterµJ.¡þÍInµthisµexample,µtheµlogicalµchannelsµM,µCF,µandµGFµareµmodeledµin¡þcommonµbecauseµtheirµprotectionµschemesµareµidentical.µAµrandom¡þ^bitµgeneratorµisµusedµtoµgenerateµdataµforµtheseµchannels.µTwoµother¡þ§randomµbitµgeneratorsµareµusedµforµtheµprotectedµandµnon³protected¡þðinformationµchannelsµIPµandµIN.¡þ’Theµscrambler,µwhichµisµpartµofµtheµB³fieldµgenerator,µmustµbeµreset¡þÛatµtheµbeginningµofµeachµhalf³slot.µTheµcontrolµsignalµ²LOAD_N²µis¡þ#generatedµaccordingly.µAsµoneµofµ8µscramblingµsequencesµis¡þlselectedµaccordingµtoµtheµcurrentµframeµnumber,µaµframeµcounterµis¡þµprovidedµcountingµfromµ²FIRST_FRAME_NO²µtoµ²FIRST_FRAME_No²+7µandµthen¡þýrestartingµfromµ²FIRST_FRAME_NO².’ënD“I501ileaf_page_string1:18¥	öä¥	öä¡6!²âdect³18¡þÉ²b)´µA³fieldµGeneration¡þVTheµA³fieldµconsistsµofµanµ8³bitµheaderµ(H³field),µaµ40³bitµtailµ(T³field),¡þŸandµ16µredundancyµbits.µTheµheaderµbitsµH4,µH5,µandµH6µindicate¡þçwhetherµtheµB³fieldµofµtheµsameµslotµisµU³typeµorµE³type.µInµthis¡þ0example,µtheseµbitsµareµgeneratedµsuchµthatµeachµ²NUM_U_SLOTS²µU³type¡þxB³fieldsµareµsucceededµbyµ²NUM_E_SLOTS²µE³typeµB³fields.µ²NUM_U_SLOTS²¡þÁandµ²NUM_E_SLOTS²µareµglobalµparametersµandµreferµtoµhalf³slotsµinµthis¡þ
example.µTheµremainingµbitsµofµtheµheaderµareµcreatedµbyµaµrandom¡þRbitµgenerator.µTheµT³fieldµbitsµcarryµinformationµfromµtheµlogical¡þ›channelsµP,µN,µQ,µM,µorµCS.µInµthisµexample,µtheseµchannelsµare¡þämodeledµbyµaµsingleµrandomµbitµgeneratorµbecauseµtheirµprotection¡þ,schemesµareµidentical.¡þ¹c)µPacketµP08jµGenerationµandµModulation¡þFPhysicalµpacketsµP08jµareµconstructedµfromµtheµcorresponding¡þA³fieldµandµB³fieldµbyµinsertingµtheµ32³bitµsynchronizationµfield.µThe¡þ×synchronizationµfieldµisµselectedµaccordingµtoµtheµslotµnumber¡þ establishedµbyµparameterµ²SLOT_NUMBER².µDependingµonµparameter¡þi²Z_FIELD_PRESENT²,µtheµZ³fieldµisµappendedµorµnot.µAnµappropriate¡þ±numberµofµguardµbitsµisµappendedµtoµobtainµtheµ240³bitµhalf³slot.¡þúOneµofµtheµtwoµhalf³slotsµisµselectedµtoµcarryµtheµpacketµaccordingµto¡þBtheµglobalµparameterµL.µTheµtypeµofµphysicalµchannelµisµselected¡þ‹withµtheµglobalµparameterµJ.µCurrently,µonlyµJµequalµtoµ0µisµdefinedµin¡þÔtheµDECTµstandard.µTheµotherµhalf³slotµisµfilledµwithµallµones.¡þ	aInµthisµexample,µtheµradioµchannelµisµstatic.µTherefore,µtheµremaining¡þ	©23µslotsµofµaµDECTµframeµareµnotµmodeledµinµorderµtoµimprove¡þ	òsimulationµperformance.µThisµmeansµthatµtheµselectedµslotµis¡þ
;continuouslyµusedµforµmodulationµandµtheµslotµnumberµisµconstant.¡þ
ƒBaseµstationµorµmobileµstationµtransmissionsµcanµbeµselectedµbyµan¡þ
Ìappropriateµslotµnumber.µTheµmodulatorµoutputµmatchesµtheµreal¡þworldµbehaviorµbecauseµtheµguardµbitsµareµincludedµinµtheµmodel.’nŒD“I501ileaf_page_string1:19¥	öä¥	öä¡#!²âdect³19¡þÉ²The´µmodulatorµmodelµcanµbeµcontrolledµbyµtheµfollowingµthree¡þparameters:¡þMODULATION_INDEX¡XEstablishesµtheµmodulationµindexµofµtheµGFSKµmodulator.¡þ‘N_SAMPLES_PER_BIT¡XûEstablishesµtheµnumberµofµoutputµsamplesµperµtransmittedµbit¡XAandµthusµtheµsimulationµbandwidthµforµtheµradioµchannel.¡þËTIMING_ERROR_IN_BITS¡X5Establishesµaµtimingµoffsetµspecifiedµinµfractionsµofµbits.¡,²Radio´µChannel¡þœ²A´µstatisticalµmodelµforµindoorµradioµmultipathµchannelsµproposedµby¡þäSalehµandµValenzuelaµisµusedµtogetherµwithµaµmodelµaddingµwhite¡þ-Gaussianµnoiseµtoµmodelµtheµradioµchannel.µThisµchannelµmodelµis¡þvstaticµforµaµgivenµrandomµseedµforµtheµ²Saleh_Channel².µForµdetails,µsee¡þ¾theµmodelµdescriptionµinµtheµmodelµdefinitionµ(².mdef²)µfileµforµthat¡þmodel.¡þ´Theµsignalµpowerµatµtheµ²Saleh_Channel²µmodelµoutputµisµnormalizedµto¡þü1.0µandµinterpretedµasµ0µdB.µItµisµthenµscaledµtoµtheµreceiverµinput¡þ	Epowerµestablishedµbyµparameterµ²INPUT_POWER_dBm².µTheµsubsequent¡þ	ŽmodelµaddingµwhiteµGaussianµnoiseµisµparameterizedµsuchµthat¡þ	Önoiseµwithµaµfixedµpowerµdensityµisµadded.¡þ
ƒTheµnoiseµpowerµisµincreasedµaccordingµtoµtheµradioµfrontendµnoise¡þ
Ìfigureµspecifiedµbyµparameterµ²NOISE_FIGURE_dB².µThisµparameterµcan¡þbeµusedµtoµmodelµreceiverµimperfections.’ŒD“I501ileaf_page_string1:20¥	öä¥	öä¡6!²âdect³20¡þÉ²The´µparametersµofµtheµ²AWGNQC²µmodelµareµselectedµasµfollows:¡þO²S²¡:OTheµsignalµpowerµisµclaimedµtoµbeµknownµ(²SIGNAL_POWER_KNOWN²µ=µ1)¡:•andµspecifiedµasµ1µ(²SIGNAL_POWER²µ=µ1.).µAsµabove,µthisµvalueµis¡:Üinterpretedµasµ0µdB.¡þD²S²¡:DTheµparameterµ²FACTOR²µisµsetµtoµtheµnumberµofµsamplesµperµtrans·³¡:Šmittedµbitµtoµadjustµtheµtotalµnoiseµpowerµinµtheµsimulationµband·³¡:Ñwidth.¡þWithµtheseµsettings,µtheµnoiseµpowerµinµtheµsignalµbandwidthµcanµbe¡þÊenteredµasµtheµreciprocalµofµtheµsignal³to³noiseµratio.µBecauseµthe¡þparameterµSNRµmustµbeµenteredµinµdB,µtheµnoiseµpowerµisµentered¡þ[signµinverted.¡þÿForµaµgivenµnoiseµtemperatureµT,µtheµnoiseµpowerµPµinµtheµsignal¡þGbandwidthµequals:¡þÊ²P´µ=µkµTµfs¡þ(²where¡X®k´µ=µ1.38066E³23µJ/Kµ¡°®µ(Boltzmannµconstant)¡Xôfsµ=µ1.152E6µHzµµµµµµµµµµ¡°ôµ(DECTµbitµrate)¡þ–Then,µ²SNR²µmustµbeµsetµtoµ-10µlogµ(P)µ-µ²NOISE_FIGURE_dB².¡þ	:Forµaµnoiseµtemperatureµofµ300µK,µthisµresultsµin:¡þ	½²SNR´µ=µ143.2µ³µNOISE_FIGURE_dB.¡,
K²Reference´µReceiver¡þ
Ì²This´µexampleµconfigurationµalsoµprovidesµaµreferenceµreceiver¡þconsistingµofµtheµfollowing:’¹D“I501ileaf_page_string1:21¥	öä¥	öä¡#!²âdect³21¡þÉ²²S²¡:É5th³order´µButterworthµlowpassµfilterµwithµadjustableµcutof¤ÿÿfµfrequen·³¡:cyµ(parameterµ²F_CUTOFF_3dB_kHz_BUTF²)¡þt²S²¡:tAnalogµFM³demodulatorµfollowedµbyµanµidealµlowpassµfilterµ(cutof¤ÿÿf¡:ºfrequencyµspecifiedµbyµparameterµ²F_CUTOFF_3dB_kHz_DEMOD²)¡þ²S²¡:Hardµdecisionµdeviceµwithµadjustableµthresholdµ(parameter¡:e²DECISION_THRESHOLD²)¡þÈ²S²¡:ÈCorrelator¡þpTheµcorrelatorµcanµbeµadjustedµbyµseveralµparametersµincludingµa¡þ¹thresholdµforµtheµdetectionµofµtheµsynchronizationµfieldµ(parameter¡þ²CORRELATOR_THRESHOLD²)µandµtheµlengthµofµtheµsearchµwindow¡þJ(parameterµ²LENGTH_OF_SEARCH_WINDOW²).¡þãForµdetailsµofµtheµdemodulatorµandµtheµcorrelator,µseeµthe¡þ,descriptionsµofµtheµcorrespondingµmodelsµ²DECT_DEMOD²µand¡þt²DECT_CORRELATOR².¡þTheµcorrelatorµsearchesµforµtheµsynchronizationµfieldµspecifiedµinµthe¡þVfileµ²$COSSAP_DIR/models/dect/preamble_dl.am².µThisµisµthe¡þžsynchronizationµfieldµforµfixedµpartµtransmissionsµduringµslotsµ0µto¡þç11.µTheµsynchronizationµfieldµforµportableµpartµtransmissions¡þ/occurringµduringµslotsµ12µtoµ23µisµbinaryµinvertedµwithµrespectµtoµthe¡þxfixedµpartµsynchronizationµfield.µTherefore,µtheµparameter¡þÁ²InvertPreamble²µofµtheµcorrelatorµisµsetµtoµ1µforµslotsµ12µtoµ23µandµtoµ0¡þ		forµtheµotherµslots.µThisµallowsµforµaµsingleµschematicµforµuplinkµand¡þ	Rdownlink.¡þ	ëAµfixedµscalarµmultiplierµisµbuiltµinµasµaµplaceholderµforµanµAGC¡þ
3circuit.¡þ
ÌAµfrequencyµerrorµinµtheµreceiverµcanµbeµmodeledµbyµsettingµthe¡þparameterµ²FREQUENCY_OFFSET_kHz²µasµrequired.’¹ÂD“I501ileaf_page_string1:22¥	öä¥	öä¡6!²âdect³22¡,Ã²Frame´µDecomposition¡þC²The´µsynchronizationµfieldµandµtheµguardµbitsµareµremovedµbyµthe¡þ‹correlator.µThatµis,µonlyµtheµD³fieldµandµ(ifµ²Z_FIELD_PRESENT²µequalsµ1)¡þÔtheµZ³fieldµappearµatµtheµcorrelatorµoutput.µThisµsignalµisµthen¡þdecomposedµintoµtheµA³field,µtheµB³field,µtheµX³field,µandµtheµZ³field.¡þeNoteµthatµforµschedulingµreasonsµtheµZ³fieldµoutputµcontainsµaµcopy¡þ®ofµX³fieldµdataµifµnoµZ³fieldµhasµbeenµtransmitted.¡þPTheµA³fieldµredundancyµbitsµareµcheckedµand,µdependingµon¡þ™parameterµ²N_CORRECT_CRC_A²,µtheµerrorµcorrectionµcapabilitiesµofµthe¡þâA³fieldµdecoderµareµusedµorµnot.µTheµA³fieldµisµsplitµintoµits¡þ*componentsµforµBERµevaluation.¡þÍTheµreceivedµH³fieldµbitsµH4,µH5,µandµH6µareµusedµtoµcontrolµthe¡þB³fieldµdemultiplexer.µHowever,µifµtheµA³fieldµcontained¡þ^uncorrectableµerrors,µwhichµisµindicatedµatµtheµ²CRC_ERROR²µoutputµof¡þ§²DEMUX_A_FIELD²,µtheµinformationµinµtheseµbitsµisµnotµreliableµandµthe¡þðB³fieldµmustµbeµignored.¡þ’TheµB³fieldµisµdecodedµandµdemultiplexedµforµevaluation.µOperation¡þÛofµtheµB³fieldµdemultiplexerµisµcontrolledµbyµcopiesµofµtheµsignals¡þ#controllingµtheµB³fieldµgenerator.µHowever,µinµorderµtoµmaintain¡þlsynchronization,µtheseµcontrolµsignalsµmustµbeµremovedµforµone¡þµhalf³slotµifµtheµcurrentµhalf³slotµisµlost,µthatµis,µwhenµtheµcorrelator¡þýfailedµtoµdetectµtheµsynchronizationµfield.µRemovingµtheµsignalsµis¡þ	Fdoneµusingµtheµ²STATUS²µoutputµofµtheµcorrelatorµtoµcontrol¡þ	demultiplexersµ(modelµ²DMUXSI²µwithµinstanceµnamesµ²M45²,µ²M52²,µandµ²M53²).’ÂÍD“I501ileaf_page_string1:23¥	öä¥	öä¡#!²âdect³23¡,Ã²Evaluation¡þJ²The´µreceivedµdataµforµtheµvariousµlogicalµchannelsµisµcomparedµwith¡þ“referenceµsignalsµthatµareµgeneratedµfromµtheµtransmittedµsignals¡þÜ(seeµdanglingµnetsµatµtheµinputsµofµtheµ²DMUXSI²µinstancesµ²M43²µandµ²M44²).¡þ$Theseµreferenceµsignalsµareµobtainedµasµdescribedµinµtheµfollowing¡þmparagraphs.¡þIfµtheµcorrelatorµfailsµtoµdetectµaµsynchronizationµfieldµinµtheµgiven¡þdsearchµwindow,µtheµcorrespondingµslotµisµlost.µOneµslotµof¡þ¬transmittedµdataµmustµbeµdisregardedµforµcreatingµtheµreference¡þõsignalµinµthisµcaseµwhichµisµindicatedµbyµtheµ²STATUS²µoutputµofµthe¡þ>correlator.µDisregardingµtheseµbitsµisµdoneµusingµtheµ²DMUXSI²¡þ†instancesµ²M43²µandµ²M44².¡þ4AµcopyµofµtheµA³fieldµdemultiplexerµ(instanceµ²M17²)µisµusedµto¡þ}generateµtheµreferencesµforµtheµA³fieldµbits.µAµcopyµofµtheµB³field¡þÅdemultiplexerµ(instanceµ²M34²)µisµusedµtoµgenerateµtheµreferencesµfor¡þtheµB³fieldµbits.µHowever,µthisµinstanceµmustµalsoµdisregardµthe¡þWcontentsµofµB³fieldsµwhoseµcorrespondingµA³fieldµwasµreceivedµwith¡þŸuncorrectableµerrorsµinµorderµtoµmaintainµsynchronizationµbetween¡þètheµreceivedµdataµstreamµandµtheµreference.µThisµisµdoneµinµthe¡þ1sameµwayµasµforµtheµB³fieldµdemultiplexerµofµtheµreferenceµreceiver¡þy(instanceµ²M20²).µBothµinstancesµshareµtheµcontrolµsignalsµthatµare¡þÂgeneratedµbyµtheµreferenceµreceiver.¡þ	pTheµfollowingµoutputµdatasetsµareµgenerated:¡þ
1)µChannelµImpulseµResponse¡þ
ÌTheµcomplexµvaluedµchannelµimpulseµresponseµofµtheµ²SALEH_CHANNEL²¡þmodelµisµstoredµinµtheµoutputµdatasetµ²CH_IMP_RESPONSE².’ÍYD“I501ileaf_page_string1:24¥	öä¥	öä¡6!²âdect³24¡þÉ²2)´µLostµSlots¡þbTheµcorrelatorµindicatesµforµeachµsearchµwindowµ(half³slot)µwhether¡þ«orµnotµtheµsynchronizationµfieldµhasµbeenµdetected.µTheµnumberµof¡þóhalf³slotsµforµwhichµdetectionµfailedµisµcountedµasµwellµasµtheµtotal¡þ<numberµofµevaluatedµhalf³slots.µTheµratioµbetweenµtheseµnumbersµis¡þ…alsoµcomputed.µTheseµresultsµareµstoredµinµtheµoutputµdataset¡þÍ²LOST_SLOTS².¡þg3)µBadµA³Fields¡þTheµA³fieldµdecoderµprovidesµstatusµinformationµforµeachµreceived¡þHcodeµwordµwhereµoneµcodeµwordµcorrespondsµtoµoneµhalf³slot.µThe¡þ‘numberµofµA³fieldsµreceivedµwithµuncorrectableµerrorsµandµtheµtotal¡þÚnumberµofµevaluatedµA³fieldsµareµcounted.µTheµratioµbetweenµthese¡þ"numbersµisµalsoµcomputed.µTheseµresultsµareµstoredµinµtheµoutput¡þkdatasetµ²BAD_A_FIELD².¡þ4)µH³FieldµErrors¡þTheµinformationµtransmittedµinµtheµH³fieldµisµreplicatedµasµa¡þæreferenceµandµcomparedµwithµtheµreceivedµH³fieldµdata.µTheµnumber¡þ.ofµerroneousµH³fieldµbitsµreceivedµisµcountedµasµwellµasµtheµtotal¡þwnumberµofµreceivedµH³fieldµbitsµandµtheµBERµisµcomputed.µThese¡þÀresultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_H².¡þ	Y5)µT³FieldµErrors¡þ	òTheµinformationµtransmittedµinµtheµT³fieldµisµreplicatedµasµa¡þ
;referenceµandµcomparedµwithµtheµreceivedµT³fieldµdata.µTheµnumber¡þ
ƒofµerroneousµT³fieldµbitsµreceivedµisµcountedµasµwellµasµtheµtotal¡þ
ÌnumberµofµreceivedµT³fieldµbitsµandµtheµBERµisµcomputed.µThese¡þresultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_T².’YD“I501ileaf_page_string1:25¥	öä¥	öä¡#!²âdect³25¡þÉ²6)´µA³FieldµErrors¡þjTheµcomparisonµresultsµfromµtheµH³fieldµandµtheµT³fieldµare¡þ³combinedµtoµobtainµnumbersµforµtheµA³field.µTheseµresultsµareµstored¡þüinµtheµoutputµdatasetµ²ERROR_A².¡þ7)µErrorsµinµnon³protectedµinformationµchannelµIN¡þ>Theµinformationµtransmittedµinµtheµnon³protectedµinformation¡þ‡channelµINµisµreplicatedµandµcomparedµwithµtheµreceivedµIN³channel¡þÏdata.µTheµnumberµofµerroneousµbitsµreceivedµisµcountedµasµwellµas¡þtheµnumberµofµreceivedµbitsµandµtheµBERµisµcomputed.µThese¡þaresultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_IN².¡þ8)µErrorsµinµprotectedµinformationµchannelµIP¡þ£TheµinformationµtransmittedµinµtheµprotectedµinformationµchannelµIP¡þìisµreplicatedµandµcomparedµwithµtheµreceivedµIP³channelµdata.µThe¡þ4numberµofµerroneousµbitsµreceivedµisµcountedµasµwellµasµtheµnumber¡þ}ofµreceivedµbitsµandµtheµBERµisµcomputed.µTheseµresultsµareµstored¡þÆinµtheµoutputµdatasetµ²ERROR_IP².¡þg9)µCRCµerrorsµinµU³typeµB³fields¡þ	TheµnumberµofµU³typeµB³fieldsµforµwhichµtheµCRC³checkµfailsµforµany¡þ	QsubfieldµandµtheµtotalµnumberµofµU³typeµB³fieldsµcheckedµare¡þ	™counted.µTheµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µThese¡þ	âresultsµareµstoredµinµtheµoutputµdatasetµ²BAD_U_FIELD².µNoteµthatµthese¡þ
+resultsµareµidenticalµtoµthoseµinµ²BAD_U_SUB_FIELD²µbecauseµthereµisµonly¡þ
soneµsubfieldµforµP08jµpackets.¡þ10)µCRCµerrorsµinµU³typeµB³subfields’ìD“I501ileaf_page_string1:26¥	öä¥	öä¡6!²âdect³26¡þÉ²The´µnumberµofµU³typeµB³subfieldsµforµwhichµtheµCRC³checkµfails¡þandµtheµtotalµnumberµofµU³typeµB³subfieldsµcheckedµareµcounted.¡þZTheµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µTheseµresults¡þ£areµstoredµinµtheµoutputµdatasetµ²BAD_U_SUB_FIELD².µNoteµthatµthese¡þìresultsµareµidenticalµtoµthoseµinµ²BAD_U_FIELD²µbecauseµthereµisµonly¡þ4oneµsubfieldµforµP08jµpackets.¡þÍ11)µErrorsµinµchannelsµtransmittedµinµE³typeµB³fields¡þgTheµnumberµofµerroneousµbitsµreceivedµinµE³typeµB³fieldsµ(errorsµin¡þ¯theµM³,µCF³,µandµGF³channel)µandµtheµtotalµnumberµofµinformation¡þøbitsµreceivedµinµtheseµfieldsµareµcountedµandµtheµcorrespondingµBER¡þ@isµcomputed.µTheseµresultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_E².¡þÚ12)µCRCµerrorsµinµE³typeµB³fields¡þsTheµnumberµofµE³typeµB³fieldsµforµwhichµtheµCRC³checkµfailsµforµany¡þ»subfieldµandµtheµtotalµnumberµofµE³typeµB³fieldsµcheckedµare¡þcounted.µTheµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µThese¡þMresultsµareµstoredµinµtheµoutputµdatasetµ²BAD_E_FIELD².µNoteµthatµthese¡þ•resultsµareµidenticalµtoµthoseµinµ²BAD_E_SUB_FIELD²µbecauseµthereµisµonly¡þÞoneµsubfieldµforµP08jµpackets.¡þw13)µCRCµerrorsµinµE³typeµB³subfields¡þ	TheµnumberµofµE³typeµB³subfieldsµforµwhichµtheµCRC³checkµfails¡þ	YandµtheµtotalµnumberµofµE³typeµB³subfieldsµcheckedµareµcounted.¡þ	¡Theµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µTheseµresults¡þ	êareµstoredµinµtheµoutputµdatasetµ²BAD_E_SUB_FIELD².µNoteµthatµthese¡þ
3resultsµareµidenticalµtoµthoseµinµ²BAD_E_FIELD²µbecauseµthereµisµonly¡þ
{oneµsubfieldµforµP08jµpackets.¡þ14)µXCRCµerrors’ìµD“I501ileaf_page_string1:27¥	öä¥	öä¡#!²âdect³27¡þÉ²The´µnumberµofµB³fieldsµforµwhichµtheµX³CRC³checkµfailsµandµthe¡þtotalµnumberµofµB³fieldsµprocessedµareµcounted.µTheµratioµbetween¡þZtheseµnumbersµisµprovidedµasµwell.µTheseµresultsµareµstoredµinµthe¡þ£outputµdatasetµ²ERROR_XCRC².¡þ;15)µBitµerrorsµinµtheµZ³field¡þÒTheµnumberµofµZ³fieldµbitsµthatµdifferµfromµtheirµcorrespondingµX³field¡þbitsµandµtheµtotalµnumberµofµcomparedµZ³fieldµbitsµareµcounted.µThe¡þcratioµbetweenµtheseµnumbersµisµprovidedµasµwell.µTheseµresultsµare¡þ¬storedµinµtheµoutputµdatasetµ²ERROR_Z².¡þD16)µErroneousµZ³fields¡þÛTheµnumberµofµZ³fieldsµcontainingµanµerrorµandµtheµtotalµnumberµof¡þ$comparedµZ³fieldsµareµcounted.µTheµratioµbetweenµtheseµnumbersµis¡þlprovidedµasµwell.µTheseµresultsµareµstoredµinµtheµoutputµdataset¡þµ²BAD_Z_FIELD².¡,u²Global´µParameters¡þí²The´µfollowingµglobalµparametersµofµtheµexampleµschematicµmustµbe¡þ6definedµinµanµassignmentµfile.µInµtheµfollowingµlist,µtheµparameter¡þ~typeµisµshownµinµparenthesisµafterµtheµparameterµname.µInteger¡þÇparametersµareµidentifiedµbyµ(I)µandµfloatingµpointµ(real)µparameters¡þ	byµ(R).¡þ	§Forµanµexample,µseeµ²I_R08j.asn².¡þ
$Jµ(I)¡X
‡Controlsµtheµtypeµofµtheµphysicalµchannel.µTheµuserµdataµrate¡X
Îdependsµonµthisµparameter.µCurrently,µonlyµ²J²µequalµtoµ0µis¡XdefinedµinµtheµDECTµstandard.’µqD“I501ileaf_page_string1:28¥	öä¥	öä¡6!²âdect³28¡þÉ²L(I)¡X-Specifies´µtheµpositionµofµtheµcomposedµhalf³slotµphysicalµpacket¡Xtwithinµtheµfull³slotµasµfollows:¡”²L²µ=µ0:µµdataµisµtransmittedµinµtheµfirstµhalfµofµtheµfull³slot¡”r²L²µ=µ1:µµdataµisµtransmittedµinµtheµsecondµhalfµofµtheµfull³slot¡þÖI_PROTECTµ(I)¡X:Parameterµcontrollingµprotectedµorµnon³protectedµtransmissionµof¡Xinformationµdata.¡”²I_PROTECT²µ=µ1:µµprotectedµdataµisµtransmitted¡”~²I_PROTECT²µ=µ0:µµnon³protectedµdataµisµtransmitted¡þãZ_FIELD_PRESENTµ(I)¡XGEstablishesµwhetherµorµnotµtheµZ³fieldµisµpresent.¡”Ó²Z_FIELD_PRESENT²µ=µ1:µµtheµZ³fieldµisµpresent¡”E²Z_FIELD_PRESENT²µ=µ0:µµtheµZ³fieldµisµnotµpresent¡þ©FIRST_FRAME_NOµ(I)¡XEstablishesµtheµstartµvalueµforµtheµframeµcounterµthatµisµrequired¡XTtoµcontrolµtheµscrambler/descrambler.µ²FIRST_FRAME_NO²µcouldµbe¡Xšanyµinteger,µhowever,µaµreasonableµrangeµisµ0µtoµ7µdueµtoµthe¡Xámoduloµ8µprocessingµinµtheµscrambler.¡þ	_SLOT_NUMBERµ(I)¡X	ÃEstablishesµtheµslotµselectedµforµtransmission.¡X
A²SLOT_NUMBER²µcanµbeµanyµintegerµvalueµinµtheµrangeµ0µtoµ23,µwhere¡X
‡0µtoµ11µrepresentsµfixedµpartµtransmissionsµandµ12³toµ23¡X
Îrepresentsµportableµpartµtransmissions.µTheµhalf³slotµusedµfor¡Xtransmissionµisµestablishedµbyµtheµparameterµ²L².’qúD“I501ileaf_page_string1:29¥	öä¥	öä¡#!²âdect³29¡þÉ²MODULATION_INDEX´µ(R)¡X*ModulationµindexµforµtheµGFSKµmodulation.µTypicallyµ0.5µfor¡XpDECTµsystems.¡þçN_SAMPLES_PER_BITµ(I)¡XHEstablishesµtheµnumberµofµsamplesµperµtransmittedµbitµatµthe¡XŽmodulatorµoutputµandµthusµtheµsimulationµbandwidthµforµtheµradio¡XÕchannel.¡þKTIMING_ERROR_IN_BITSµ(R)¡X¬Establishesµaµtimingµoffsetµinµfractionsµofµbits.µTheµlegalµrangeµis¡Xò(R)µ-0.5µtoµ0.5.µNoteµthatµtheµnumberµenteredµisµroundedµto¡X9integerµmultiplesµofµ1/²N_SAMPLES_PER_BIT².¡þ°RANDOM_SEED_SALEHµ(I)¡XSpecifiesµtheµstartingµvalueµofµtheµrandomµnumberµgeneratorµin¡XWtheµ²SALEH_CHANNEL²µmodel.µTheµchannelµimpulseµresponseµreturned¡Xinµtheµoutputµdatasetµ²CH_IMP_RESP²µdependsµonµthisµparameter.¡þRESPONSE_LENGTHµ(I)¡XuSpecifiesµtheµlengthµ(inµsamples)µofµtheµchannelµimpulse¡X»response.¡þ2INPUT_POWER_dBmµ(R)¡X’Specifiesµtheµpowerµofµtheµreceivedµsignalµatµtheµreceiverµinput.¡XÙItµisµmeasuredµinµdBm.¡þ	ONOISE_FIGURE_dBµ(R)¡X	°SpecifiesµtheµradioµfrontendµnoiseµfigureµinµdB.µItµisµusedµto¡X	÷increaseµtheµnoiseµpowerµinµorderµtoµmodelµreceiver¡X
=imperfections.¡þ
´FREQUENCY_OFFSET_kHzµ(R)¡XSpecifiesµaµfrequencyµerrorµinµkHz.’úED“I501ileaf_page_string1:30¥	öä¥	öä¡6!²âdect³30¡þÉ²F_CUTOFF_3dB_kHz_BUTF´µ(R)¡X-Specifiesµtheµ3µdBµcutoffµfrequencyµ(measuredµinµkHz)µofµthe¡XtButterworthµfilterµatµtheµreceiverµinput.¡þñF_CUTOFF_3dB_kHz_DEMODµ(R)¡XUSpecifiesµtheµ3µdBµcutoffµfrequencyµ(measuredµinµkHz)µofµthe¡X›lowpassµfilterµatµtheµdemodulatorµoutput.¡þDECISION_THRESHOLDµ(R)¡X|Specifiesµtheµthresholdµforµtheµhardµdecisionµatµtheµdemodulator¡XÃoutput.µInµtheµidealµcaseµitµshouldµbeµsetµtoµ0.0.µHowever,µitµcan¡X
beµsetµtoµaµdifferentµvalueµinµorderµtoµcompensateµaµfrequency¡XPoffset.¡þÍCORRELATOR_THRESHOLDµ(I)¡X1Specifiesµtheµthresholdµforµpreambleµdetectionµinµtheµcorrelator.¡XxTheµnumberµofµtoleratedµerrorsµinµtheµsynchronizationµfieldµis¡X¾32-²CORRELATOR_THRESHOLD².¡þ<LENGTH_OF_SEARCH_WINDOWµ(I)¡XŸSpecifiesµtheµwindowµinµwhichµtheµcorrelatorµsearchesµforµthe¡Xæsynchronizationµfield.µItµisµenteredµasµtheµnumberµofµbitsµinµthis¡X-window.¡XªForµaµdetailedµdescription,µseeµtheµdescriptionµofµthe¡Xð²DECT_CORRELATOR²µmodel.¡þ	nN_CORRECT_CRC_Aµ(I)¡X	ÑSpecifiesµwhetherµorµnotµtheµerrorµcorrectionµcapabilitiesµofµthe¡X
A³fieldµdecoderµareµused:¡”
£²N_CORRECT_CRC_A²µ=µ0:µµNoµerrorµcorrectionµisµperformed.¡”²N_CORRECT_CRC_A²µ=µ1:µµOneµerrorµperµcodeµwordµisµcorrected.’EŸD“I501ileaf_page_string1:31¥	öä¥	öä¡#!²âdect³31¡”É²²N_CORRECT_CRC_A²´µ=µ2:µµUpµtoµtwoµerrorsµperµcodeµwordµare¡”corrected.¡þ…N_CORRECT_CRC_BEµ(I)¡XùSpecifiesµwhetherµorµnotµtheµerrorµcorrectionµcapabilitiesµofµthe¡X?B³fieldµdecoderµareµusedµforµE³typeµB³Fields:¡”ñ²N_CORRECT_CRC_BE²µ=µ0:µµNoµerrorµcorrectionµisµperformed.¡”z²N_CORRECT_CRC_BE²µ=µ1:µµOneµerrorµperµcodeµwordµisµcorrected.¡”²N_CORRECT_CRC_BE²µ=µ2:µµUpµtoµtwoµerrorsµperµcodeµwordµare¡”Lcorrected.¡þ¿N_CORRECT_CRC_BUµ(I)¡X3Specifiesµwhetherµorµnotµtheµerrorµcorrectionµcapabilitiesµofµthe¡XzB³fieldµdecoderµareµusedµforµU³typeµB³Fieldsµ(thisµappliesµfor¡XÀprotectedµinformationµbitsµonly,µ²I_PROTECT²µ=µ1):¡”r²N_CORRECT_CRC_BU²µ=µ0:µµNoµerrorµcorrectionµisµperformed.¡”û²N_CORRECT_CRC_BU²µ=µ1:µµOneµerrorµperµcodeµwordµisµcorrected.¡”„²N_CORRECT_CRC_BU²µ=µ2:µµUpµtoµtwoµerrorsµperµcodeµwordµare¡”Ícorrected.¡þ	@NUM_U_SLOTSµ(I)¡X	´Thisµparameterµisµusedµtogetherµwithµ²NUM_E_SLOTS²µtoµgenerateµthe¡X	úA³fieldµbitsµcontrollingµwhetherµtheµB³fieldµofµtheµcorresponding¡X
Ahalf³slotµisµU³typeµorµE³type.µInµthisµexampleµschematic,µeach¡X
‡²NUM_U_SLOTS²µU³typeµslotsµareµsucceededµbyµ²NUM_E_SLOTS²µE³type¡X
Îslots.µ²NUM_U_SLOTS²µorµ²NUM_E_SLOTS²µmayµequalµzero.µIfµbothµequal¡Xzero,µonlyµE³typeµB³fieldsµareµgenerated.’ŸfD“I501ileaf_page_string1:32¥	öä¥	öä¡6!²âdect³32¡þÉ²NUM_E_SLOTS´µ(I)¡X0Thisµparameterµisµusedµtogetherµwithµ²NUM_U_SLOTS²µtoµgenerateµthe¡XvA³fieldµbitsµcontrollingµwhetherµtheµB³fieldµofµtheµcorresponding¡X½half³slotµisµU³typeµorµE³type.µInµthisµexampleµschematic,µeach¡X²NUM_U_SLOTS²µU³typeµslotsµareµsucceededµbyµ²NUM_E_SLOTS²µE³type¡XJslots.µ²NUM_U_SLOTS²µorµ²NUM_E_SLOTS²µmayµequalµzero.µIfµbothµequal¡X‘zero,µonlyµE³typeµB³fieldsµareµgenerated.¡þNUM_SLOTSµ(I)¡XzSpecifiesµtheµnumberµofµslotsµ(activeµhalf³slots)µprocessed¡XÀbeforeµtheµsimulationµstops.µBecauseµonlyµoneµslotµ(active¡Xhalf³slotµplusµdummyµhalf³slot)µperµframeµisµprocessedµfor¡XMsimulationµefficiency,µthisµnumberµalsoµequalsµtheµnumberµof¡X”frames.¡,j²I_R32.sch²µµ(PhysicalµChannelµR32)¡þì²ThisµisµanµexampleµofµhowµtoµuseµtheµCOSSAPµDECTµlibraryµto¡þ4analyzeµtheµphysicalµchannelµR32µdefinedµinµtheµDECTµstandard¡þ}prETSµ300µ175µ(Julyµ1995).¡þ Throughoutµthisµexample,µallµtimesµareµmeasuredµinµmsµandµall¡þhfrequenciesµinµkHz.’f£D“I501ileaf_page_string1:33¥	öä¥	öä¡#!²âdect³33¡,Ã²Frame´µAssemblyµandµModulation¡þC²a)´µB³fieldµGeneration¡þåTheµB³fieldµgenerator,µ²B_FIELD_GEN_32²,µcreatesµE³typeµorµU³type¡þ.B³fieldsµdependingµonµtheµvaluesµreadµfromµtheµinputµsignalsµH4,¡þvH5,µandµH6µwhereµtheµcorrespondingµbitsµofµtheµcurrentµA³fieldµare¡þ¿entered.µTheµU³typeµB³fieldsµareµgeneratedµinµprotectedµor¡þnon³protectedµformatµdependingµonµaµcontrolµsignal.µHowever,µa¡þPconstantµisµassignedµtoµthisµsignalµinµthisµexample.µTheµglobal¡þ™parameterµ²I_PROTECT²µisµusedµtoµselectµbetweenµprotectedµand¡þânon³protectedµtransmissionµofµinformationµchannelµdata.¡þ„Inµthisµexample,µtheµlogicalµchannelsµM,µCF,µandµGFµareµmodeledµin¡þÍcommonµbecauseµtheirµprotectionµschemesµareµidentical.µAµrandom¡þbitµgeneratorµisµusedµtoµgenerateµdataµforµtheseµchannels.µTwoµother¡þ^randomµbitµgeneratorsµareµusedµforµtheµprotectedµandµnon³protected¡þ§informationµchannelsµIPµandµIN.¡þJTheµscrambler,µwhichµisµpartµofµtheµB³fieldµgenerator,µmustµbeµreset¡þ’atµtheµbeginningµofµeachµslot.µTheµcontrolµsignalµ²LOAD_N²µisµgenerated¡þÛaccordingly.µ1µofµ8µscramblingµsequencesµisµselectedµaccordingµto¡þ#theµcurrentµframeµnumber.µTherefore,µaµframeµcounterµisµprovided¡þlcountingµfromµ²FIRST_FRAME_NO²µtoµ²FIRST_FRAME_No²+7µandµthenµrestarting¡þµfromµ²FIRST_FRAME_NO².’£D“I501ileaf_page_string1:34¥	öä¥	öä¡6!²âdect³34¡þÉ²b)´µA³fieldµGeneration¡þlTheµA³fieldµconsistsµofµanµ8³bitµheaderµ(H³field),µaµ40³bitµtailµ(T³field)¡þ´andµ16µredundancyµbits.µTheµheaderµbitsµH4,µH5,µandµH6µindicate¡þýwhetherµtheµB³fieldµofµtheµsameµslotµisµU³typeµorµE³type.µInµthis¡þFexample,µtheseµbitsµareµgeneratedµsuchµthatµeachµ²NUM_U_SLOTS²µU³type¡þŽB³fieldsµareµsucceededµbyµ²NUM_E_SLOTS²µE³typeµB³fields.µ²NUM_U_SLOTS²¡þ×andµ²NUM_E_SLOTS²µareµglobalµparameters.µTheµremainingµbitsµofµthe¡þ headerµareµcreatedµbyµaµrandomµbitµgenerator.µTheµT³fieldµbitsµcarry¡þhinformationµfromµtheµlogicalµchannelsµP,µN,µQ,µM,µorµCS.µInµthis¡þ±example,µtheseµchannelsµareµmodeledµbyµaµsingleµrandomµbit¡þúgeneratorµbecauseµtheirµprotectionµschemesµareµidentical.¡þœc)µPacketµP32µGenerationµandµModulation¡þ?PhysicalµpacketsµP32µareµconstructedµfromµtheµcorresponding¡þ‡A³fieldµandµB³fieldµbyµinsertingµtheµ32³bitµsynchronizationµfield.µThe¡þÐsynchronizationµfieldµisµselectedµaccordingµtoµtheµslotµnumber¡þestablishedµbyµparameterµ²SLOT_NUMBER².µDependingµonµparameter¡þa²Z_FIELD_PRESENT²,µtheµZ³fieldµisµappendedµorµnot.µAnµappropriate¡þªnumberµofµguardµbitsµisµappendedµtoµobtainµtheµ480³bitµfull³slot.¡þMInµthisµexample,µtheµradioµchannelµisµstatic.µTherefore,µtheµremaining¡þ•23µslotsµofµaµDECTµframeµareµnotµmodeledµinµorderµtoµimprove¡þÞsimulationµperformance.µThisµmeansµthatµtheµselectedµslotµis¡þ	'continuouslyµusedµforµmodulationµandµtheµslotµnumberµisµconstant.¡þ	oBaseµstationµorµmobileµstationµtransmissionsµcanµbeµselectedµbyµan¡þ	¸appropriateµslotµnumber.µTheµmodulatorµoutputµmatchesµtheµreal¡þ
worldµbehaviorµbecauseµtheµguardµbitsµareµincludedµinµtheµmodel.’–D“I501ileaf_page_string1:35¥	öä¥	öä¡#!²âdect³35¡þÉ²The´µmodulatorµmodelµcanµbeµcontrolledµbyµtheµfollowingµthree¡þparameters:¡þMODULATION_INDEX¡XEstablishesµtheµmodulationµindexµofµtheµGFSKµmodulator.¡þ‘N_SAMPLES_PER_BIT¡XûEstablishesµtheµnumberµofµoutputµsamplesµperµtransmittedµbit¡XAandµthusµtheµsimulationµbandwidthµforµtheµradioµchannel.¡þËTIMING_ERROR_IN_BITS¡X5Establishesµaµtimingµoffsetµspecifiedµinµfractionsµofµbits.¡,²Radio´µChannel¡þœ²A´µstatisticalµmodelµforµindoorµradioµmultipathµchannelsµproposedµby¡þäSalehµandµValenzuelaµisµusedµtogetherµwithµaµmodelµaddingµwhite¡þ-Gaussianµnoiseµtoµmodelµtheµradioµchannel.µThisµchannelµmodelµis¡þvstaticµforµaµgivenµrandomµseedµforµtheµ²Saleh_Channel².µForµdetails,µsee¡þ¾theµmodelµdescriptionµinµtheµmodelµdefinitionµ(².mdef²)µfileµforµthat¡þmodel.¡þ´Theµsignalµpowerµatµtheµ²Saleh_Channel²µmodelµoutputµisµnormalizedµto¡þü1.0µandµinterpretedµasµ0µdB.µItµisµthenµscaledµtoµtheµreceiverµinput¡þ	Epowerµestablishedµbyµtheµparameterµ²INPUT_POWER_dBm².µThe¡þ	ŽsubsequentµmodelµaddingµwhiteµGaussianµnoiseµhasµbeen¡þ	Öparameterizedµsuchµthatµnoiseµwithµaµfixedµpowerµdensityµisµadded.¡þ
ƒTheµnoiseµpowerµisµincreasedµaccordingµtoµtheµradioµfrontendµnoise¡þ
Ìfigureµspecifiedµbyµparameterµ²NOISE_FIGURE_dB².µThisµparameterµcan¡þbeµusedµtoµmodelµreceiverµimperfections.’–€D“I501ileaf_page_string1:36¥	öä¥	öä¡6!²âdect³36¡þÉ²The´µparametersµofµtheµ²AWGNQC²µmodelµareµselectedµasµfollows:¡þN²S²¡:NTheµsignalµpowerµisµclaimedµtoµbeµknownµ(²SIGNAL_POWER_KNOWN²µ=µ1)¡:”andµspecifiedµasµ1µ(²SIGNAL_POWER²µ=µ1.).µAsµabove,µthisµvalueµis¡:Ûinterpretedµasµ0µdB.¡þB²S²¡:BTheµparameterµ²FACTOR²µisµsetµtoµtheµnumberµofµsamplesµperµtrans·³¡:‰mittedµbitµtoµadjustµtheµtotalµnoiseµpowerµinµtheµsimulationµband·³¡:Ðwidth.¡þUWithµtheseµsettings,µtheµnoiseµpowerµinµtheµsignalµbandwidthµcanµbe¡þženteredµasµtheµreciprocalµofµtheµsignal³to³noiseµratio.µBecauseµthe¡þæparameterµ²SNR²µmustµbeµenteredµinµdB,µtheµnoiseµpowerµisµentered¡þ/signµinverted.¡þÒForµaµgivenµnoiseµtemperatureµT,µtheµnoiseµpowerµPµinµtheµsignal¡þbandwidthµequals:¡þœ²P´µ=µkµTµfs¡þú²where¡Xk´µ=µ1.38066E³23µJ/Kµ¡°µ(Boltzmannµconstant)¡Xfsµ=µ1.152E6µHzµµµµµµµµµµ¡°µ(DECTµbitµrate)¡þèThen,µ²SNR²µmustµbeµsetµtoµ-10log(P)µ-µ²NOISE_FIGURE_dB².¡þ	‹Forµaµnoiseµtemperatureµofµ300µK,µthisµresultsµin:¡þ
²SNR´µ=µ143.2µ-µNOISE_FIGURE_dB’€¾D“I501ileaf_page_string1:37¥	öä¥	öä¡#!²âdect³37¡,Ã²Reference´µReceiver¡þ1²This´µexampleµconfigurationµalsoµprovidesµaµreferenceµreceiver¡þzconsistingµofµtheµfollowing:¡þï²S²¡:ï5th³orderµButterworthµlowpassµfilterµwithµadjustableµcutof¤ÿÿfµfrequen·³¡:5cyµ(parameterµ²F_CUTOFF_3dB_kHz_BUTF²)¡þ”²S²¡:”AnalogµFM³demodulatorµfollowedµbyµanµidealµlowpassµfilterµ(cutof¤ÿÿf¡:Úfrequencyµspecifiedµbyµparameterµ²F_CUTOFF_3dB_kHz_DEMOD²)¡þ9²S²¡:9Hardµdecisionµdeviceµwithµadjustableµthresholdµ(parameter¡:€²DECISION_THRESHOLD²)¡þÞ²S²¡:ÞCorrelator¡þ|Theµcorrelatorµcanµbeµadjustedµbyµseveralµparametersµincludingµa¡þÅthresholdµforµtheµdetectionµofµtheµsynchronizationµfieldµ(parameter¡þ²CORRELATOR_THRESHOLD²)µandµtheµlengthµofµtheµsearchµwindow¡þV(parameterµ²LENGTH_OF_SEARCH_WINDOW²).¡þáForµdetailsµofµtheµdemodulatorµandµtheµcorrelatorµseeµthe¡þ)descriptionsµofµtheµcorrespondingµmodelsµ²DECT_DEMOD²µand¡þr²DECT_CORRELATOR².¡þüTheµcorrelatorµsearchesµforµtheµsynchronizationµfieldµspecifiedµinµthe¡þEfileµ²$COSSAP_DIR/models/dect/preamble_dl.am².µThisµisµthe¡þŽsynchronizationµfieldµforµfixedµpartµtransmissionsµduringµslotsµ0µto¡þÖ11.µTheµsynchronizationµfieldµforµportableµpartµtransmissions¡þ	occurringµduringµslotsµ12µtoµ23µisµbinaryµinvertedµwithµrespectµtoµthe¡þ	hfixedµpartµsynchronizationµfield.µTherefore,µtheµparameter¡þ	°²InvertPreamble²µofµtheµcorrelatorµisµsetµtoµ1µforµslotsµ12µtoµ23µandµtoµ0¡þ	ùforµtheµotherµslots.µThisµallowsµforµaµsingleµschematicµforµuplinkµand¡þ
Adownlink.¡þ
ÌAµfixedµscalarµmultiplierµisµbuiltµinµasµaµplaceholderµforµanµAGC¡þcircuit.’¾5D“I501ileaf_page_string1:38¥	öä¥	öä¡6!²âdect³38¡þÉ²A´µfrequencyµerrorµinµtheµreceiverµcanµbeµmodeledµbyµsettingµthe¡þparameterµ²FREQUENCY_OFFSET_kHz²µasµrequired.¡,²Frame´µDecomposition¡þ²The´µsynchronizationµfieldµandµtheµguardµbitsµareµremovedµbyµthe¡þØcorrelator.µThatµis,µonlyµtheµD³fieldµandµ(ifµ²Z_FIELD_PRESENT²µequalsµ1)¡þ theµZ³fieldµappearµatµtheµcorrelatorµoutput.µThisµsignalµisµthen¡þidecomposedµintoµtheµA³field,µtheµB³field,µtheµX³field,µandµtheµZ³field.¡þ²Noteµthatµforµschedulingµreasons,µtheµZ³fieldµoutputµcontainsµaµcopy¡þúofµX³fieldµdataµifµnoµZ³fieldµhasµbeenµtransmitted.¡þ°TheµA³fieldµredundancyµbitsµareµcheckedµand,µdependingµon¡þùparameterµ²N_CORRECT_CRC_A²,µtheµerrorµcorrectionµcapabilitiesµofµthe¡þAA³fieldµdecoderµareµusedµorµnot.µTheµA³fieldµisµsplitµintoµits¡þŠcomponentsµforµBERµevaluation.¡þ@TheµreceivedµH³fieldµbitsµH4,µH5,µandµH6µareµusedµtoµcontrolµthe¡þˆB³fieldµdemultiplexer.µHowever,µifµtheµA³fieldµcontained¡þÑuncorrectableµerrors,µwhichµisµindicatedµatµtheµ²CRC_ERROR²µoutputµof¡þ²DEMUX_A_FIELD²,µtheµinformationµinµtheseµbitsµisµnotµreliableµandµthe¡þbB³fieldµmustµbeµignored.¡þ	TheµB³fieldµisµdecodedµandµdemultiplexedµforµevaluation.µOperation¡þ	aofµtheµB³fieldµdemultiplexerµisµcontrolledµbyµcopiesµofµtheµsignals¡þ	©controllingµtheµB³fieldµgenerator.µHowever,µinµorderµtoµmaintain¡þ	òsynchronization,µtheseµcontrolµsignalsµmustµbeµremovedµforµoneµslot¡þ
;ifµtheµcurrentµslotµisµlost,µthatµis,µwhenµtheµcorrelatorµfailedµtoµdetect¡þ
ƒtheµsynchronizationµfield.µRemovingµtheµsignalsµisµdoneµusingµthe¡þ
Ì²STATUS²µoutputµofµtheµcorrelatorµtoµcontrolµdemultiplexersµ(model¡þ²DMUXSI²µwithµinstanceµnamesµ²M45²,µ²M52²,µandµ²M53²).’5êD“I501ileaf_page_string1:39¥	öä¥	öä¡#!²âdect³39¡,Ã²Evaluation¡þJ²The´µreceivedµdataµforµtheµvariousµlogicalµchannelsµisµcomparedµwith¡þ“referenceµsignalsµthatµareµgeneratedµfromµtheµtransmittedµsignals¡þÜ(seeµtheµopenµnetsµatµtheµinputsµofµtheµ²DMUXSI²µinstancesµ²M43²µandµ²M44²).¡þ$Theseµreferenceµsignalsµareµobtainedµasµdescribedµinµtheµfollowing¡þmparagraphs.¡þIfµtheµcorrelatorµfailsµtoµdetectµaµsynchronizationµfieldµinµtheµgiven¡þdsearchµwindow,µtheµcorrespondingµdouble³slotµisµcompletelyµlost.¡þ¬Oneµdouble³slotµofµtransmittedµdataµmustµbeµdisregardedµfor¡þõcreatingµtheµreferenceµsignalµinµthisµcaseµwhichµisµindicatedµbyµthe¡þ>²STATUS²µoutputµofµtheµcorrelator.µDisregardingµtheseµbitsµisµdoneµusing¡þ†theµ²DMUXSI²µinstancesµ²M43²µandµ²M44².¡þ4AµcopyµofµtheµA³fieldµdemultiplexerµ(instanceµ²M17²)µisµusedµto¡þ}generateµtheµreferencesµforµtheµA³fieldµbits.µAµcopyµofµtheµB³field¡þÅdemultiplexerµ(instanceµ²M42²)µisµusedµtoµgenerateµtheµreferencesµfor¡þtheµB³fieldµbits.µHowever,µthisµinstanceµmustµalsoµdisregardµthe¡þWcontentsµofµB³fieldsµwhoseµcorrespondingµA³fieldµwasµreceivedµwith¡þŸuncorrectableµerrorsµinµorderµtoµmaintainµsynchronizationµbetween¡þètheµreceivedµdataµstreamµandµtheµreference.µThisµisµdoneµinµthe¡þ1sameµwayµasµforµtheµB³fieldµdemultiplexerµofµtheµreferenceµreceiver¡þy(instanceµ²M30²).µBothµinstancesµshareµtheµcontrolµsignalsµthatµare¡þÂgeneratedµbyµtheµreferenceµreceiver.¡þ	pTheµfollowingµoutputµdatasetsµareµgenerated:¡þ
1)µChannelµImpulseµResponse¡þ
ÌTheµcomplexµvaluedµchannelµimpulseµresponseµofµtheµ²SALEH_CHANNEL²¡þmodelµisµstoredµinµtheµoutputµdatasetµ²CH_IMP_RESPONSE².’ê9D“I501ileaf_page_string1:40¥	öä¥	öä¡6!²âdect³40¡þÉ²2)´µLostµSlots¡þmTheµcorrelatorµindicatesµforµeachµsearchµwindowµ(slot)µwhetherµor¡þµnotµtheµsynchronizationµfieldµhasµbeenµdetected.µTheµnumberµof¡þþslotsµforµwhichµdetectionµfailedµisµcountedµasµwellµasµtheµtotal¡þGnumberµofµevaluatedµslots.µTheµratioµbetweenµtheseµnumbersµisµalso¡þcomputed.µTheseµresultsµareµstoredµinµtheµoutputµdatasetµ²LOST_SLOTS².¡þ33)µBadµA³Fields¡þÖTheµA³fieldµdecoderµprovidesµstatusµinformationµforµeachµreceived¡þcodeµwordµwhereµoneµcodeµwordµcorrespondsµtoµoneµslot.µThe¡þgnumberµofµA³fieldsµreceivedµwithµuncorrectableµerrorsµandµtheµtotal¡þ°numberµofµevaluatedµA³fieldsµareµcounted.µTheµratioµbetweenµthese¡þùnumbersµisµalsoµcomputed.µTheseµresultsµareµstoredµinµtheµoutput¡þAdatasetµ²BAD_A_FIELD².¡þå4)µH³FieldµErrors¡þˆµTheµinformationµtransmittedµinµtheµH³fieldµisµreplicatedµasµa¡þÑreferenceµandµcomparedµwithµtheµreceivedµH³fieldµdata.Theµnumber¡þofµerroneousµH³fieldµbitsµreceivedµisµcountedµasµwellµasµtheµtotal¡þbnumberµofµreceivedµH³fieldµbitsµandµtheµBERµisµcomputed.µThese¡þ«resultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_H².¡þ	N5)µT³FieldµErrors¡þ	òTheµinformationµtransmittedµinµtheµT³fieldµisµreplicatedµasµa¡þ
;referenceµandµcomparedµwithµtheµreceivedµT³fieldµdata.µTheµnumber¡þ
ƒofµerroneousµT³fieldµbitsµreceivedµisµcountedµasµwellµasµtheµtotal¡þ
ÌnumberµofµreceivedµT³fieldµbitsµandµtheµBERµisµcomputed.µThese¡þresultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_T².’9£D“I501ileaf_page_string1:41¥	öä¥	öä¡#!²âdect³41¡þÉ²6)´µA³FieldµErrors¡þPTheµcomparisonµresultsµfromµtheµH³fieldµandµtheµT³fieldµare¡þ™combinedµtoµobtainµnumbersµforµtheµA³field.µTheseµresultsµareµstored¡þâinµtheµoutputµdatasetµ²ERROR_A².¡þi7)µErrorsµinµnon³protectedµinformationµchannelµIN¡þðTheµinformationµtransmittedµinµtheµnon³protectedµinformation¡þ9channelµINµisµreplicatedµandµcomparedµwithµtheµreceivedµIN³channel¡þdata.µTheµnumberµofµerroneousµbitsµreceivedµisµcountedµasµwellµas¡þÊtheµnumberµofµreceivedµbitsµandµtheµBERµisµcomputed.µThese¡þresultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_IN².¡þš8)µErrorsµinµprotectedµinformationµchannelµIP¡þ!TheµinformationµtransmittedµinµtheµprotectedµinformationµchannelµIP¡þjisµreplicatedµandµcomparedµwithµtheµreceivedµIP³channelµdata.µThe¡þ²numberµofµerroneousµbitsµreceivedµisµcountedµasµwellµasµtheµnumber¡þûofµreceivedµbitsµandµtheµBERµisµcomputed.µTheseµresultsµareµstored¡þDinµtheµoutputµdatasetµ²ERROR_IP².¡þË9)µCRCµerrorsµinµU³typeµB³fields¡þRTheµnumberµofµU³typeµB³fieldsµforµwhichµtheµCRC³checkµfailsµforµany¡þ›subfieldµandµtheµtotalµnumberµofµU³typeµB³fieldsµcheckedµare¡þãcounted.µTheµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µThese¡þ	,resultsµareµstoredµinµtheµoutputµdatasetµ²BAD_U_FIELD².¡þ	³10)µCRCµerrorsµinµU³typeµB³subfields¡þ
;TheµnumberµofµU³typeµB³subfieldsµforµwhichµtheµCRC³checkµfails¡þ
ƒandµtheµtotalµnumberµofµU³typeµB³subfieldsµcheckedµareµcounted.¡þ
ÌTheµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µTheseµresults¡þareµstoredµinµtheµoutputµdatasetµ²BAD_U_SUB_FIELD².’£†D“I501ileaf_page_string1:42¥	öä¥	öä¡6!²âdect³42¡þÉ²11)´µErrorsµinµchannelsµtransmittedµinµE³typeµB³fields¡þXTheµnumberµofµerroneousµbitsµreceivedµinµE³typeµB³fieldsµ(errorsµin¡þ¡theµM³,µCF³,µandµGF³channel)µandµtheµtotalµnumberµofµinformation¡þêbitsµreceivedµinµtheseµfieldsµareµcountedµandµtheµcorrespondingµBER¡þ2isµcomputed.µTheseµresultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_E².¡þÂ12)µCRCµerrorsµinµE³typeµB³fields¡þQTheµnumberµofµE³typeµB³fieldsµforµwhichµtheµCRC³checkµfailsµforµany¡þšsubfieldµandµtheµtotalµnumberµofµE³typeµB³fieldsµcheckedµare¡þâcounted.µTheµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µThese¡þ+resultsµareµstoredµinµtheµoutputµdatasetµ²BAD_E_FIELD².¡þº13)µCRCµerrorsµinµE³typeµB³subfields¡þITheµnumberµofµE³typeµB³subfieldsµforµwhichµtheµCRC³checkµfails¡þ’andµtheµtotalµnumberµofµE³typeµB³subfieldsµcheckedµareµcounted.¡þÛTheµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µTheseµresults¡þ#areµstoredµinµtheµoutputµdatasetµ²BAD_E_SUB_FIELD².¡þ³14)µXCRCµerrors¡þBTheµnumberµofµB³fieldsµforµwhichµtheµX³CRC³checkµfailsµandµthe¡þ‹totalµnumberµofµB³fieldsµprocessedµareµcounted.µTheµratioµbetween¡þÓtheseµnumbersµisµprovidedµasµwell.µTheseµresultsµareµstoredµinµthe¡þ	outputµdatasetµ²ERROR_XCRC².¡þ	«15)µBitµerrorsµinµtheµZ³field¡þ
;TheµnumberµofµZ³fieldµbitsµthatµdifferµfromµtheirµcorrespondingµX³field¡þ
ƒbitsµandµtheµtotalµnumberµofµcomparedµZ³fieldµbitsµareµcounted.µThe¡þ
Ìratioµbetweenµtheseµnumbersµisµprovidedµasµwell.µTheseµresultsµare¡þstoredµinµtheµoutputµdatasetµ²ERROR_Z².’†‰D“I501ileaf_page_string1:43¥	öä¥	öä¡#!²âdect³43¡þÉ²16)´µErroneousµZ³fields¡þQTheµnumberµofµZ³fieldsµcontainingµanµerrorµandµtheµtotalµnumberµof¡þšcomparedµZ³fieldsµareµcounted.µTheµratioµbetweenµtheseµnumbersµis¡þãprovidedµasµwell.µTheseµresultsµareµstoredµinµtheµoutputµdataset¡þ+²BAD_Z_FIELD².¡,Ó²Global´µParameters¡þ@²The´µfollowingµglobalµparametersµofµtheµexampleµschematicµmustµbe¡þˆdefinedµinµanµassignmentµfile.µInµtheµfollowingµlist,µtheµparameter¡þÑtypeµisµshownµinµparenthesisµafterµtheµparameter.µInteger¡þparametersµareµidentifiedµbyµ(I)µandµfloatingµpointµ(real)µparameters¡þbbyµ(R).¡þêForµanµexample,µseeµ²I_R32.asn².¡þ]I_PROTECTµ(I)¡X»Parameterµcontrollingµprotectedµorµnon³protectedµtransmissionµof¡Xinformationµdata.¡”}²I_PROTECT²µ=µ1:µµprotectedµdataµisµtransmitted¡”æ²I_PROTECT²µ=µ0:µµnon³protectedµdataµisµtransmitted¡þCZ_FIELD_PRESENTµ(I)¡X¡EstablishesµwhetherµorµnotµtheµZ³fieldµisµpresent.¡”	²Z_FIELD_PRESENT²µ=µ1:µµtheµZ³fieldµisµpresent¡”	…²Z_FIELD_PRESENT²µ=µ0:µµtheµZ³fieldµisµnotµpresent¡þ	ãFIRST_FRAME_NOµ(I)¡X
AEstablishesµtheµstartµvalueµforµtheµframeµcounterµwhichµis¡X
‡requiredµtoµcontrolµtheµscrambler/descrambler.µ²FIRST_FRAME_NO²¡X
Îcouldµbeµanyµinteger,µhowever,µaµreasonableµrangeµisµ0µtoµ7µdue¡Xtoµtheµmoduloµ8µprocessingµinµtheµscrambler.’‰D“I501ileaf_page_string1:44¥	öä¥	öä¡6!²âdect³44¡þÉ²SLOT_NUMBER´µ(I)¡X1Establishesµtheµslotµselectedµforµtransmission.µ²SLOT_NUMBER²µcanµbe¡Xxanyµintegerµvalueµinµtheµrangeµ0µtoµ23µwhereµ0µtoµ11µrepresents¡X¾fixedµpartµtransmissionsµandµ12µto³23µrepresentsµportableµpart¡Xtransmissions.¡þ‹MODULATION_INDEXµ(R)¡XóModulationµindexµforµtheµGFSKµmodulation.µTypically,µthisµisµ0.5¡X:forµDECTµsystems.¡þ¿N_SAMPLES_PER_BITµ(I)¡X(Establishesµtheµnumberµofµsamplesµperµtransmittedµbitµatµthe¡Xnmodulatorµoutputµandµthusµtheµsimulationµbandwidthµforµtheµradio¡Xµchannel.¡þ;TIMING_ERROR_IN_BITSµ(R)¡X£Establishesµaµtimingµoffsetµinµfractionsµofµbits.µTheµlegalµrangeµis¡Xé(R)µ-0.5µtoµ0.5.µNoteµthatµtheµnumberµenteredµisµroundedµto¡X0integerµmultiplesµofµ1/²N_SAMPLES_PER_BIT².¡þ¶RANDOM_SEED_SALEHµ(I)¡XSpecifiesµtheµstartingµvalueµofµtheµrandomµnumberµgeneratorµin¡Xetheµ²SALEH_CHANNEL²µmodel.µTheµchannelµimpulseµresponseµreturned¡X«inµtheµoutputµdatasetµ²CH_IMP_RESP²µdependsµonµthisµparameter.¡þ	1RESPONSE_LENGTHµ(I)¡X	™Specifiesµtheµlengthµ(inµsamples)µofµtheµchannelµimpulse¡X	àresponse.¡þ
fINPUT_POWER_dBmµ(R)¡X
ÎSpecifiesµtheµpowerµofµtheµreceivedµsignalµatµtheµreceiverµinput.¡XItµisµmeasuredµinµdBm.’D“I501ileaf_page_string1:45¥	öä¥	öä¡#!²âdect³45¡þÉ²NOISE_FIGURE_dB´µ(R)¡X.SpecifiesµtheµradioµfrontendµnoiseµfigureµinµdB.µItµisµusedµto¡Xuincreaseµtheµnoiseµpowerµinµorderµtoµmodelµreceiver¡X»imperfections.¡þ;FREQUENCY_OFFSET_kHzµ(R)¡X SpecifiesµaµfrequencyµerrorµinµkHz.¡þ F_CUTOFF_3dB_kHz_BUTFµ(R)¡X†Specifiesµtheµ3µdBµcutoffµfrequencyµ(measuredµinµkHz)µofµthe¡XÌButterworthµfilterµatµtheµreceiverµinput.¡þLF_CUTOFF_3dB_kHz_DEMODµ(R)¡X±Specifiesµtheµ3µdBµcutoffµfrequencyµ(measuredµinµkHz)µofµthe¡Xølowpassµfilterµatµtheµdemodulatorµoutput.¡þwDECISION_THRESHOLDµ(R)¡XÝSpecifiesµtheµthresholdµforµtheµhardµdecisionµatµtheµdemodulator¡X#output.µInµtheµidealµcase,µitµshouldµbeµsetµtoµ0.0.µHowever,µitµcan¡Xjbeµsetµtoµaµdifferentµvalueµinµorderµtoµcompensateµaµfrequency¡X°offset.¡þ0CORRELATOR_THRESHOLDµ(I)¡X•Specifiesµtheµthresholdµforµpreambleµdetectionµinµtheµcorrelator.¡XÜTheµnumberµofµtoleratedµerrorsµinµtheµsynchronizationµfieldµis¡X	#32-²CORRELATOR_THRESHOLD².¡þ	¢LENGTH_OF_SEARCH_WINDOWµ(I)¡X
Specifiesµtheµwindowµinµwhichµtheµcorrelatorµsearchesµforµthe¡X
Nsynchronizationµfield.µItµisµenteredµasµtheµnumberµofµbitsµinµthis¡X
•window.¡XForµdetails,µseeµtheµdescriptionµofµtheµ²DECT_CORRELATOR²µmodel.’àD“I501ileaf_page_string1:46¥	öä¥	öä¡6!²âdect³46¡þÉ²N_CORRECT_CRC_A´µ(I)¡X:Specifiesµwhetherµorµnotµtheµerrorµcorrectionµcapabilitiesµofµthe¡XA³fieldµdecoderµareµused:¡”,²N_CORRECT_CRC_A²µ=µ0:µµNoµerrorµcorrectionµisµperformed.¡”±²N_CORRECT_CRC_A²µ=µ1:µµOneµerrorµperµcodeµwordµisµcorrected.¡”7²N_CORRECT_CRC_A²µ=µ2:µµUpµtoµtwoµerrorsµperµcodeµwordµare¡”corrected.¡þðN_CORRECT_CRC_BEµ(I)¡XaSpecifiesµwhetherµorµnotµtheµerrorµcorrectionµcapabilitiesµofµthe¡X¨B³fieldµdecoderµareµusedµforµE³typeµB³Fields:¡”T²N_CORRECT_CRC_BE²µ=µ0:µµNoµerrorµcorrectionµisµperformed.¡”Ù²N_CORRECT_CRC_BE²µ=µ1:µµOneµerrorµperµcodeµwordµisµcorrected.¡”^²N_CORRECT_CRC_BE²µ=µ2:µµUpµtoµtwoµerrorsµperµcodeµwordµare¡”§corrected.¡þN_CORRECT_CRC_BUµ(I)¡X‰Specifiesµwhetherµorµnotµtheµerrorµcorrectionµcapabilitiesµofµthe¡XÏB³fieldµdecoderµareµusedµforµU³typeµB³Fieldsµ(thisµappliesµfor¡X	protectedµinformationµbitsµonly,µ²I_PROTECT²µ=µ1):¡”	Á²N_CORRECT_CRC_BU²µ=µ0:µµNoµerrorµcorrectionµisµperformed.¡”
G²N_CORRECT_CRC_BU²µ=µ1:µµOneµerrorµperµcodeµwordµisµcorrected.¡”
Ì²N_CORRECT_CRC_BU²µ=µ2:µµUpµtoµtwoµerrorsµperµcodeµwordµare¡”corrected.’à×D“I501ileaf_page_string1:47¥	öä¥	öä¡#!²âdect³47¡þÉ²NUM_U_SLOTS´µ(I)¡X:Thisµparameterµisµusedµtogetherµwithµ²NUM_E_SLOTS²µtoµgenerateµthe¡X€A³fieldµbitsµcontrollingµwhetherµtheµB³fieldµofµtheµcorresponding¡XÇslotµisµU³typeµorµE³type.µInµthisµexampleµschematic,µeach¡X²NUM_U_SLOTS²µU³typeµslotsµareµsucceededµbyµ²NUM_E_SLOTS²µE³type¡XTslots.µ²NUM_U_SLOTS²µorµ²NUM_E_SLOTS²µmayµequalµzero.µIfµbothµequal¡X›zero,µonlyµE³typeµB³fieldsµareµgenerated.¡þ1NUM_E_SLOTSµ(I)¡X¢Thisµparameterµisµusedµtogetherµwithµ²NUM_U_SLOTS²µtoµgenerateµthe¡XèA³fieldµbitsµcontrollingµwhetherµtheµB³fieldµofµtheµcorresponding¡X/slotµisµU³typeµorµE³type.µInµthisµexampleµschematic,µeach¡Xu²NUM_U_SLOTS²µU³typeµslotsµareµsucceededµbyµ²NUM_E_SLOTS²µE³type¡X¼slots.µ²NUM_U_SLOTS²µorµ²NUM_E_SLOTS²µmayµequalµzero.µIfµbothµequal¡Xzero,µonlyµE³typeµB³fieldsµareµgenerated.¡þ™NUM_SLOTSµ(I)¡X
Specifiesµtheµnumberµofµslotsµprocessedµbeforeµtheµsimulation¡XPstops.µBecauseµonlyµoneµslotµperµframeµisµprocessedµfor¡X—simulationµefficiency,µthisµnumberµalsoµequalsµtheµnumberµof¡XÝframes.¡,ã²I_R80.sch²µµ(PhysicalµChannelµR80)¡þ	z²ThisµisµanµexampleµofµhowµtoµuseµtheµCOSSAPµDECTµlibraryµto¡þ	ÃanalyzeµtheµphysicalµchannelµR80µdefinedµinµtheµDECTµstandard¡þ
prETSµ300µ175µ(Julyµ1995).¡þ
ÌThroughoutµthisµexample,µallµtimesµareµmeasuredµinµmsµandµall¡þfrequenciesµinµkHz.’×¬D“I501ileaf_page_string1:48¥	öä¥	öä¡6!²âdect³48¡,Ã²Frame´µAssemblyµandµModulation¡þC²a)´µB³fieldµGeneration¡þåTheµB³fieldµgenerator,µ²B_FIELD_GEN_80²,µcreatesµE³typeµorµU³type¡þ.B³fieldsµdependingµonµtheµvaluesµreadµfromµtheµinputµsignalsµH4,¡þvH5,µandµH6µwhereµtheµcorrespondingµbitsµofµtheµcurrentµA³fieldµare¡þ¿entered.µTheµU³typeµB³fieldsµareµgeneratedµinµprotectedµor¡þnon³protectedµformatµdependingµonµaµcontrolµsignal.µHowever,µa¡þPconstantµisµassignedµtoµthisµsignalµinµthisµexample.µTheµglobal¡þ™parameterµ²I_PROTECT²µisµusedµtoµselectµbetweenµprotectedµand¡þânon³protectedµtransmissionµofµinformationµchannelµdata.¡þ„Inµthisµexample,µtheµlogicalµchannelsµM,µCF,µandµGFµareµmodeledµin¡þÍcommonµbecauseµtheirµprotectionµschemesµareµidentical.µAµrandom¡þbitµgeneratorµisµusedµtoµgenerateµdataµforµtheseµchannels.µTwoµother¡þ^randomµbitµgeneratorsµareµusedµforµtheµprotectedµandµnon³protected¡þ§informationµchannelsµIPµandµIN.¡þJTheµscrambler,µwhichµisµpartµofµtheµB³fieldµgenerator,µmustµbeµreset¡þ’atµtheµbeginningµofµeachµdouble³slot.µTheµcontrolµsignalµ²LOAD_N²µis¡þÛgeneratedµaccordingly.µ1µofµ8µscramblingµsequencesµisµselected¡þ#accordingµtoµtheµcurrentµframeµnumber.µTherefore,µaµframeµcounter¡þlisµprovidedµcountingµfromµ²FIRST_FRAME_NO²µtoµ²FIRST_FRAME_No²+7µand¡þµthenµrestartingµfromµ²FIRST_FRAME_NO².’¬%D“I501ileaf_page_string1:49¥	öä¥	öä¡#!²âdect³49¡þÉ²b)´µA³fieldµGeneration¡þlTheµA³fieldµconsistsµofµanµ8³bitµheaderµ(H³field),µaµ40³bitµtailµ(T³field),¡þ´andµ16µredundancyµbits.µTheµheaderµbitsµH4,µH5,µandµH6µindicate¡þýwhetherµtheµB³fieldµofµtheµsameµslotµisµU³typeµorµE³type.µInµthis¡þFexample,µtheseµbitsµareµgeneratedµsuchµthatµeachµ²NUM_U_SLOTS²µU³type¡þŽB³fieldsµareµsucceededµbyµ²NUM_E_SLOTS²µE³typeµB³fields.µ²NUM_U_SLOTS²¡þ×andµ²NUM_E_SLOTS²µareµglobalµparameters.µTheµremainingµbitsµofµthe¡þ headerµareµcreatedµbyµaµrandomµbitµgenerator.µTheµT³fieldµbitsµcarry¡þhinformationµfromµtheµlogicalµchannelsµP,µN,µQ,µM,µorµCS.µInµthis¡þ±example,µtheseµchannelsµareµmodeledµbyµaµsingleµrandomµbit¡þúgeneratorµbecauseµtheirµprotectionµschemesµareµidentical.¡þœc)µPacketµP80µGenerationµandµModulation¡þ?PhysicalµpacketsµP80µareµconstructedµfromµtheµcorresponding¡þ‡A³fieldµandµB³fieldµbyµinsertingµtheµ32³bitµsynchronizationµfield.µThe¡þÐsynchronizationµfieldµisµselectedµaccordingµtoµtheµslotµnumber¡þestablishedµbyµparameterµ²SLOT_NUMBER².µDependingµonµparameter¡þa²Z_FIELD_PRESENT²,µtheµZ³fieldµisµappendedµorµnot.µAnµappropriate¡þªnumberµofµguardµbitsµisµappendedµtoµobtainµtheµ960³bitµdouble³slot.¡þMInµthisµexample,µtheµradioµchannelµisµstatic.µTherefore,µtheµremaining¡þ•22µslotsµofµaµDECTµframeµareµnotµmodeledµinµorderµtoµimprove¡þÞsimulationµperformance.µThisµmeansµthatµtheµselectedµdouble³slotµis¡þ	'continuouslyµusedµforµmodulationµandµtheµslotµnumberµisµconstant.¡þ	oBaseµstationµorµmobileµstationµtransmissionsµcanµbeµselectedµbyµan¡þ	¸appropriateµslotµnumber.µTheµmodulatorµoutputµmatchesµtheµreal¡þ
worldµbehaviorµbecauseµtheµguardµbitsµareµincludedµinµtheµmodel.’%D“I501ileaf_page_string1:50¥	öä¥	öä¡6!²âdect³50¡þÉ²The´µmodulatorµmodelµcanµbeµcontrolledµbyµtheµfollowingµthree¡þparameters:¡þMODULATION_INDEX¡XEstablishesµtheµmodulationµindexµofµtheµGFSKµmodulator.¡þ‘N_SAMPLES_PER_BIT¡XûEstablishesµtheµnumberµofµoutputµsamplesµperµtransmittedµbit¡XAandµthusµtheµsimulationµbandwidthµforµtheµradioµchannel.¡þËTIMING_ERROR_IN_BITS¡X5Establishesµaµtimingµoffsetµspecifiedµinµfractionsµofµbits.¡,²Radio´µChannel¡þœ²A´µstatisticalµmodelµforµindoorµradioµmultipathµchannelsµproposedµby¡þäSalehµandµValenzuelaµisµusedµtogetherµwithµaµmodelµaddingµwhite¡þ-Gaussianµnoiseµtoµmodelµtheµradioµchannel.µThisµchannelµmodelµis¡þvstaticµforµaµgivenµrandomµseedµforµtheµ²Saleh_Channel².µForµdetails,µread¡þ¾theµmodelµdescriptionµinµtheµmodelµdefinitionµ(².mdef²)µfileµforµthat¡þmodel.¡þ´Theµsignalµpowerµatµtheµ²Saleh_Channel²µmodelµoutputµisµnormalizedµto¡þü1.0µandµinterpretedµasµ0µdB.µItµisµthenµscaledµtoµtheµreceiverµinput¡þ	Epowerµestablishedµbyµparameterµ²INPUT_POWER_dBm².µTheµsubsequent¡þ	ŽmodelµaddingµwhiteµGaussianµnoiseµisµparameterizedµsuchµthat¡þ	Önoiseµwithµaµfixedµpowerµdensityµisµadded.¡þ
ƒTheµnoiseµpowerµisµincreasedµaccordingµtoµtheµradioµfrontendµnoise¡þ
Ìfigureµspecifiedµbyµparameterµ²NOISE_FIGURE_dB².µThisµparameterµcan¡þbeµusedµtoµmodelµreceiverµimperfections.’”D“I501ileaf_page_string1:51¥	öä¥	öä¡#!²âdect³51¡þÉ²The´µparametersµofµtheµ²AWGNQC²µmodelµareµselectedµasµfollows:¡þ@²S²¡:@Theµsignalµpowerµisµclaimedµtoµbeµknownµ(²SIGNAL_POWER_KNOWN²µ=µ1)¡:‡andµspecifiedµasµ1µ(²SIGNAL_POWER²µ=µ1.).µAsµabove,µthisµvalueµis¡:Îinterpretedµasµ0µdB.¡þ.²S²¡:.Theµparameterµ²FACTOR²µisµsetµtoµtheµnumberµofµsamplesµperµtrans·³¡:tmittedµbitµtoµadjustµtheµtotalµnoiseµpowerµinµtheµsimulationµband·³¡:»width.¡þ\Withµtheseµsettings,µtheµnoiseµpowerµinµtheµsignalµbandwidthµcanµbe¡þ¥enteredµasµtheµreciprocalµofµtheµsignal³to³noiseµratio.µBecauseµthe¡þíparameterµ²SNR²µmustµbeµenteredµinµdB,µtheµnoiseµpowerµisµentered¡þ6signµinverted.¡þÄForµaµgivenµnoiseµtemperatureµT,µtheµnoiseµpowerµPµinµtheµsignal¡þbandwidthµequals:¡þ²P´µ=µkµTµfs¡þ×²where¡XNk´µ=µ1.38066E³23µJ/Kµ¡°Nµ(Boltzmannµconstant)¡X”fsµ=µ1.152E6µHzµµµµµµµµµµ¡°”µ(DECTµbitµrate)¡þ!Then,µ²SNR²µmustµbeµsetµtoµ-10log(P)µ-µ²NOISE_FIGURE_dB².¡þ°Forµaµnoiseµtemperatureµofµ300µK,µthisµresultsµin:¡þ	#²SNR´µ=µ143.2µ-µNOISE_FIGURE_dB¡,	œ²Reference´µReceiver¡þ
²This´µexampleµconfigurationµalsoµprovidesµaµreferenceµreceiver¡þ
Wconsistingµofµtheµfollowing:¡þ
Î²S²¡:
Î5th³orderµButterworthµlowpassµfilterµwithµadjustableµcutof¤ÿÿfµfrequen·³¡:cyµ(parameterµ²F_CUTOFF_3dB_kHz_BUTF²)’”'D“I501ileaf_page_string1:52¥	öä¥	öä¡6!²âdect³52¡þÉ²²S²¡:ÉAnalog´µFM³demodulatorµfollowedµbyµanµidealµlowpassµfilterµ(cutof¤ÿÿf¡:frequencyµspecifiedµbyµparameterµ²F_CUTOFF_3dB_kHz_DEMOD²)¡þ²S²¡:Hardµdecisionµdeviceµwithµadjustableµthresholdµ(parameter¡:Æ²DECISION_THRESHOLD²)¡þ5²S²¡:5Correlator¡þóTheµcorrelatorµcanµbeµadjustedµbyµseveralµparametersµincludingµa¡þ<thresholdµforµtheµdetectionµofµtheµsynchronizationµfieldµ(parameter¡þ„²CORRELATOR_THRESHOLD²)µandµtheµlengthµofµtheµsearchµwindow¡þÍ(parameterµ²LENGTH_OF_SEARCH_WINDOW²).¡þ…Forµdetailsµofµtheµdemodulatorµandµtheµcorrelator,µseeµthe¡þÎdescriptionsµofµtheµcorrespondingµmodelsµ²DECT_DEMOD²µand¡þ²DECT_CORRELATOR².¡þÎTheµcorrelatorµsearchesµforµtheµsynchronizationµfieldµspecifiedµinµthe¡þfileµ²$COSSAP_DIR/models/dect/preamble_dl.am².µThisµisµthe¡þ_synchronizationµfieldµforµfixedµpartµtransmissionsµduringµslotsµ0µto¡þ¨11.µTheµsynchronizationµfieldµforµportableµpartµtransmissions¡þñoccurringµduringµslotsµ12µtoµ23µisµbinaryµinvertedµwithµrespectµtoµthe¡þ9fixedµpartµsynchronizationµfield.µTherefore,µtheµparameter¡þ‚²InvertPreamble²µofµtheµcorrelatorµisµsetµtoµ1µforµslotsµ12µtoµ23µandµtoµ0¡þËforµtheµotherµslots.µThisµallowsµforµaµsingleµschematicµforµuplinkµand¡þ	downlink.¡þ	ËAµfixedµscalarµmultiplierµisµbuiltµinµasµaµplaceholderµforµanµAGC¡þ
circuit.¡þ
ÌAµfrequencyµerrorµinµtheµreceiverµcanµbeµmodeledµbyµsetting¡þparameterµ²FREQUENCY_OFFSET_kHz²µasµrequired.’'ÌD“I501ileaf_page_string1:53¥	öä¥	öä¡#!²âdect³53¡,Ã²Frame´µDecomposition¡þC²The´µsynchronizationµfieldµandµtheµguardµbitsµareµremovedµbyµthe¡þ‹correlator.µThatµis,µonlyµtheµD³fieldµandµ(ifµ²Z_FIELD_PRESENT²µequalsµ1)¡þÔtheµZ³fieldµappearµatµtheµcorrelatorµoutput.µThisµsignalµisµthen¡þdecomposedµintoµtheµA³field,µtheµB³field,µtheµX³field,µandµtheµZ³field.¡þeNoteµthatµforµschedulingµreasons,µtheµZ³fieldµoutputµcontainsµaµcopy¡þ®ofµX³fieldµdataµifµnoµZ³fieldµhasµbeenµtransmitted.¡þPTheµA³fieldµredundancyµbitsµareµcheckedµand,µdependingµon¡þ™parameterµ²N_CORRECT_CRC_A²,µtheµerrorµcorrectionµcapabilitiesµofµthe¡þâA³fieldµdecoderµareµusedµorµnot.µTheµA³fieldµisµsplitµintoµits¡þ*componentsµforµBERµevaluation.¡þÍTheµreceivedµH³fieldµbitsµH4,µH5,µandµH6µareµusedµtoµcontrolµthe¡þB³fieldµdemultiplexer.µHowever,µifµtheµA³fieldµcontained¡þ^uncorrectableµerrors,µwhichµisµindicatedµatµtheµ²CRC_ERROR²µoutputµof¡þ§²DEMUX_A_FIELD²,µtheµinformationµinµtheseµbitsµisµnotµreliableµandµthe¡þðB³fieldµmustµbeµignored.¡þ’TheµB³fieldµisµdecodedµandµdemultiplexedµforµevaluation.µOperation¡þÛofµtheµB³fieldµdemultiplexerµisµcontrolledµbyµcopiesµofµtheµsignals¡þ#controllingµtheµB³fieldµgenerator.µHowever,µinµorderµtoµmaintain¡þlsynchronization,µtheseµcontrolµsignalsµmustµbeµremovedµforµone¡þµdouble³slotµifµtheµcurrentµdouble³slotµisµlost,µthatµis,µwhenµthe¡þýcorrelatorµfailedµtoµdetectµtheµsynchronizationµfield.µRemovingµthe¡þ	Fsignalsµisµdoneµusingµtheµ²STATUS²µoutputµofµtheµcorrelatorµtoµcontrol¡þ	demultiplexersµ(modelsµ²DMUXSI²µwithµinstanceµnamesµ²M45²,µ²M52²,µand¡þ	×²M53²).’ÌÞD“I501ileaf_page_string1:54¥	öä¥	öä¡6!²âdect³54¡,Ã²Evaluation¡þJ²The´µreceivedµdataµforµtheµvariousµlogicalµchannelsµisµcomparedµwith¡þ“referenceµsignalsµthatµareµgeneratedµfromµtheµtransmittedµsignals¡þÜ(seeµtheµopenµnetsµatµtheµinputsµofµtheµ²DMUXSI²µinstancesµ²M43²µandµ²M44²).¡þ$Theseµreferenceµsignalsµareµobtainedµasµdescribedµinµtheµfollowing¡þmparagraphs.¡þIfµtheµcorrelatorµfailsµtoµdetectµaµsynchronizationµfieldµinµtheµgiven¡þdsearchµwindow,µtheµcorrespondingµdouble³slotµisµlost.µOne¡þ¬double³slotµofµtransmittedµdataµmustµbeµdisregardedµforµcreatingµthe¡þõreferenceµsignalµinµthisµcase.µThisµisµindicatedµbyµtheµ²STATUS²µoutputµof¡þ>theµcorrelator.µDisregardingµtheseµbitsµisµdoneµusingµtheµ²DMUXSI²¡þ†instancesµ²M43²µandµ²M44².¡þ4AµcopyµofµtheµA³fieldµdemultiplexerµ(instanceµ²M17²)µisµusedµto¡þ}generateµtheµreferencesµforµtheµA³fieldµbits.µAµcopyµofµtheµB³field¡þÅdemultiplexerµ(instanceµ²M32²)µisµusedµtoµgenerateµtheµreferencesµfor¡þtheµB³fieldµbits.µHowever,µthisµinstanceµmustµalsoµdisregardµthe¡þWcontentsµofµB³fieldsµwhoseµcorrespondingµA³fieldµwasµreceivedµwith¡þŸuncorrectableµerrorsµinµorderµtoµmaintainµsynchronizationµbetween¡þètheµreceivedµdataµstreamµandµtheµreference.µThisµisµdoneµinµthe¡þ1sameµwayµasµforµtheµB³fieldµdemultiplexerµofµtheµreferenceµreceiver¡þy(instanceµ²M1²).µBothµinstancesµshareµtheµcontrolµsignalsµthatµare¡þÂgeneratedµbyµtheµreferenceµreceiver.¡þ	pTheµfollowingµoutputµdatasetsµareµgenerated:¡þ
1)µChannelµImpulseµResponse¡þ
ÌTheµcomplexµvaluedµchannelµimpulseµresponseµofµtheµ²SALEH_CHANNEL²¡þmodelµisµstoredµinµtheµoutputµdatasetµ²CH_IMP_RESPONSE².’Þ`D“I501ileaf_page_string1:55¥	öä¥	öä¡#!²âdect³55¡þÉ²2)´µLostµSlots¡þbTheµcorrelatorµindicatesµforµeachµsearchµwindowµ(double³slot)¡þ«whetherµorµnotµtheµsynchronizationµfieldµhasµbeenµdetected.µThe¡þónumberµofµdouble³slotsµforµwhichµdetectionµfailedµisµcountedµasµwell¡þ<asµtheµtotalµnumberµofµevaluatedµdouble³slots.µTheµratioµbetween¡þ…theseµnumbersµisµalsoµcomputed.µTheseµresultsµareµstoredµinµthe¡þÍoutputµdatasetµ²LOST_SLOTS².¡þg3)µBadµA³Fields¡þTheµA³fieldµdecoderµprovidesµstatusµinformationµforµeachµreceived¡þHcodeµwordµwhereµoneµcodeµwordµcorrespondsµtoµoneµdouble³slot.¡þ‘TheµnumberµofµA³fieldsµreceivedµwithµuncorrectableµerrorsµandµthe¡þÚtotalµnumberµofµevaluatedµA³fieldsµareµcounted.µTheµratioµbetween¡þ"theseµnumbersµisµalsoµcomputed.µTheseµresultsµareµstoredµinµthe¡þkoutputµdatasetµ²BAD_A_FIELD².¡þ4)µH³FieldµErrors¡þTheµinformationµtransmittedµinµtheµH³fieldµisµreplicatedµasµa¡þæreferenceµandµcomparedµwithµtheµreceivedµH³fieldµdata.Theµnumber¡þ.ofµerroneousµH³fieldµbitsµreceivedµisµcountedµasµwellµasµtheµtotal¡þwnumberµofµreceivedµH³fieldµbitsµandµtheµBERµisµcomputed.µThese¡þÀresultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_H².¡þ	Y5)µT³FieldµErrors¡þ	òTheµinformationµtransmittedµinµtheµT³fieldµisµreplicatedµasµa¡þ
;referenceµandµcomparedµwithµtheµreceivedµT³fieldµdata.µTheµnumber¡þ
ƒofµerroneousµT³fieldµbitsµreceivedµisµcountedµasµwellµasµtheµtotal¡þ
ÌnumberµofµreceivedµT³fieldµbitsµandµtheµBERµisµcomputed.µThese¡þresultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_T².’`£D“I501ileaf_page_string1:56¥	öä¥	öä¡6!²âdect³56¡þÉ²6)´µA³FieldµErrors¡þPTheµcomparisonµresultsµfromµtheµH³fieldµandµtheµT³fieldµare¡þ™combinedµtoµobtainµnumbersµforµtheµA³field.µTheseµresultsµareµstored¡þâinµtheµoutputµdatasetµ²ERROR_A².¡þi7)µErrorsµinµnon³protectedµinformationµchannelµIN¡þðTheµinformationµtransmittedµinµtheµnon³protectedµinformation¡þ9channelµINµisµreplicatedµandµcomparedµwithµtheµreceivedµIN³channel¡þdata.µTheµnumberµofµerroneousµbitsµreceivedµisµcountedµasµwellµas¡þÊtheµnumberµofµreceivedµbitsµandµtheµBERµisµcomputed.µThese¡þresultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_IN².¡þš8)µErrorsµinµprotectedµinformationµchannelµIP¡þ!TheµinformationµtransmittedµinµtheµprotectedµinformationµchannelµIP¡þjisµreplicatedµandµcomparedµwithµtheµreceivedµIP³channelµdata.µThe¡þ²numberµofµerroneousµbitsµreceivedµisµcountedµasµwellµasµtheµnumber¡þûofµreceivedµbitsµandµtheµBERµisµcomputed.µTheseµresultsµareµstored¡þDinµtheµoutputµdatasetµ²ERROR_IP².¡þË9)µCRCµerrorsµinµU³typeµB³fields¡þRTheµnumberµofµU³typeµB³fieldsµforµwhichµtheµCRC³checkµfailsµforµany¡þ›subfieldµandµtheµtotalµnumberµofµU³typeµB³fieldsµcheckedµare¡þãcounted.µTheµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µThese¡þ	,resultsµareµstoredµinµtheµoutputµdatasetµ²BAD_U_FIELD².¡þ	³10)µCRCµerrorsµinµU³typeµB³subfields¡þ
;TheµnumberµofµU³typeµB³subfieldsµforµwhichµtheµCRC³checkµfails¡þ
ƒandµtheµtotalµnumberµofµU³typeµB³subfieldsµcheckedµareµcounted.¡þ
ÌTheµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µTheseµresults¡þareµstoredµinµtheµoutputµdatasetµ²BAD_U_SUB_FIELD².’£†D“I501ileaf_page_string1:57¥	öä¥	öä¡#!²âdect³57¡þÉ²11)´µErrorsµinµchannelsµtransmittedµinµE³typeµB³fields¡þXTheµnumberµofµerroneousµbitsµreceivedµinµE³typeµB³fieldsµ(errorsµin¡þ¡theµM³,µCF³,µandµGF³channel)µandµtheµtotalµnumberµofµinformation¡þêbitsµreceivedµinµtheseµfieldsµareµcountedµandµtheµcorrespondingµBER¡þ2isµcomputed.µTheseµresultsµareµstoredµinµtheµoutputµdatasetµ²ERROR_E².¡þÂ12)µCRCµerrorsµinµE³typeµB³fields¡þQTheµnumberµofµE³typeµB³fieldsµforµwhichµtheµCRC³checkµfailsµforµany¡þšsubfieldµandµtheµtotalµnumberµofµE³typeµB³fieldsµcheckedµare¡þâcounted.µTheµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µThese¡þ+resultsµareµstoredµinµtheµoutputµdatasetµ²BAD_E_FIELD².¡þº13)µCRCµerrorsµinµE³typeµB³subfields¡þITheµnumberµofµE³typeµB³subfieldsµforµwhichµtheµCRC³checkµfails¡þ’andµtheµtotalµnumberµofµE³typeµB³subfieldsµcheckedµareµcounted.¡þÛTheµratioµbetweenµtheseµnumbersµisµalsoµcomputed.µTheseµresults¡þ#areµstoredµinµtheµoutputµdatasetµ²BAD_E_SUB_FIELD².¡þ³14)µXCRCµerrors¡þBTheµnumberµofµB³fieldsµforµwhichµtheµX³CRC³checkµfailsµandµthe¡þ‹totalµnumberµofµB³fieldsµprocessedµareµcounted.µTheµratioµbetween¡þÓtheseµnumbersµisµprovidedµasµwell.µTheseµresultsµareµstoredµinµthe¡þ	outputµdatasetµ²ERROR_XCRC².¡þ	«15)µBitµerrorsµinµtheµZ³field¡þ
;TheµnumberµofµZ³fieldµbitsµthatµdifferµfromµtheirµcorrespondingµX³field¡þ
ƒbitsµandµtheµtotalµnumberµofµcomparedµZ³fieldµbitsµareµcounted.µThe¡þ
Ìratioµbetweenµtheseµnumbersµisµprovidedµasµwell.µTheseµresultsµare¡þstoredµinµtheµoutputµdatasetµ²ERROR_Z².’†˜D“I501ileaf_page_string1:58¥	öä¥	öä¡6!²âdect³58¡þÉ²16)´µErroneousµZ³fields¡þQTheµnumberµofµZ³fieldsµcontainingµanµerrorµandµtheµtotalµnumberµof¡þšcomparedµZ³fieldsµareµcounted.µTheµratioµbetweenµtheseµnumbersµis¡þãprovidedµasµwell.µTheseµresultsµareµstoredµinµtheµoutputµdataset¡þ+²BAD_Z_FIELD².¡,Ó²Global´µParameters¡þ@²The´µfollowingµglobalµparametersµofµtheµexampleµschematicµmustµbe¡þˆdefinedµinµanµassignmentµfile.µInµtheµfollowingµlist,µtheµparameter¡þÑtypeµisµshownµinµparenthesisµafterµtheµparameterµname.µInteger¡þparametersµareµidentifiedµbyµ(I)µandµfloatingµpointµ(real)µparameters¡þbareµidentifiedµbyµ(R).¡þêForµanµexample,µseeµ²I_R32.asn².¡þ]I_PROTECTµ(I)¡X»Parameterµcontrollingµprotectedµorµnon³protectedµtransmissionµof¡Xinformationµdata.¡”}²I_PROTECT²µ=µ1:µprotectedµdataµisµtransmitted¡”æ²I_PROTECT²µ=µ0:µnon³protectedµdataµisµtransmitted¡þCZ_FIELD_PRESENTµ(I)¡X¡EstablishesµwhetherµorµnotµtheµZ³fieldµisµpresent.¡”	²Z_FIELD_PRESENT²µ=µ1:µtheµZ³fieldµisµpresent¡”	…²Z_FIELD_PRESENT²µ=µ0:µtheµZ³fieldµisµnotµpresent¡þ	ãFIRST_FRAME_NOµ(I)¡X
AEstablishesµtheµstartµvalueµforµtheµframeµcounterµthatµisµrequired¡X
‡toµcontrolµtheµscrambler/descrambler.µ²FIRST_FRAME_NO²µcouldµbe¡X
Îanyµinteger,µhowever,µaµreasonableµrangeµisµ0µtoµ7µdueµtoµthe¡Xmoduloµ8µprocessingµinµtheµscrambler.’˜&D“I501ileaf_page_string1:59¥	öä¥	öä¡#!²âdect³59¡þÉ²SLOT_NUMBER´µ(I)¡X1Establishesµtheµdouble³slotµselectedµforµtransmission.¡Xx²SLOT_NUMBER²µcanµtakeµanyµevenµintegerµvalueµinµtheµrangeµ0µtoµ23,¡X¾whereµ0µtoµ11µrepresentsµfixedµpartµtransmissionsµandµ12µto³23¡Xrepresentsµportableµpartµtransmissions.¡þ‹MODULATION_INDEXµ(R)¡XóModulationµindexµforµtheµGFSKµmodulation.µTypically,µthisµisµ0.5¡X:forµDECTµsystems.¡þ¿N_SAMPLES_PER_BITµ(I)¡X(Establishesµtheµnumberµofµsamplesµperµtransmittedµbitµatµthe¡Xnmodulatorµoutputµandµthusµtheµsimulationµbandwidthµforµtheµradio¡Xµchannel.¡þ;TIMING_ERROR_IN_BITSµ(R)¡X£Establishesµaµtimingµoffsetµinµfractionsµofµbits.µTheµlegalµrangeµis¡Xé(R)µ-0.5µtoµ0.5.µNoteµthatµtheµnumberµenteredµisµroundedµto¡X0integerµmultiplesµofµ1/²N_SAMPLES_PER_BIT².¡þ¶RANDOM_SEED_SALEHµ(I)¡XSpecifiesµtheµstartingµvalueµofµtheµrandomµnumberµgeneratorµin¡Xetheµ²SALEH_CHANNEL²µmodel.µTheµchannelµimpulseµresponseµreturned¡X«inµtheµoutputµdatasetµ²CH_IMP_RESP²µdependsµonµthisµparameter.¡þ	1RESPONSE_LENGTHµ(I)¡X	™Specifiesµtheµlengthµ(inµsamples)µofµtheµchannelµimpulse¡X	àresponse.¡þ
fINPUT_POWER_dBmµ(R)¡X
ÎSpecifiesµtheµpowerµofµtheµreceivedµsignalµatµtheµreceiverµinput.¡XItµisµmeasuredµinµdBm.’&BD“I501ileaf_page_string1:60¥	öä¥	öä¡6!²âdect³60¡þÉ²NOISE_FIGURE_dB´µ(R)¡X+SpecifiesµtheµradioµfrontendµnoiseµfigureµinµdB.µItµisµusedµto¡Xrincreaseµtheµnoiseµpowerµinµorderµtoµmodelµreceiver¡X¸imperfections.¡þ1FREQUENCY_OFFSET_kHzµ(R)¡X“SpecifiesµaµfrequencyµerrorµinµkHz.¡þF_CUTOFF_3dB_kHz_BUTFµ(R)¡XnSpecifiesµtheµ3µdBµcutoffµfrequencyµ(measuredµinµkHz)µofµthe¡XµButterworthµfilterµatµtheµreceiverµinput.¡þ.F_CUTOFF_3dB_kHz_DEMODµ(R)¡XSpecifiesµtheµ3µdBµcutoffµfrequencyµ(measuredµinµkHz)µofµthe¡XÖlowpassµfilterµatµtheµdemodulatorµoutput.¡þODECISION_THRESHOLDµ(R)¡X±Specifiesµtheµthresholdµforµtheµhardµdecisionµatµtheµdemodulator¡Xøoutput.µInµtheµidealµcaseµitµshouldµbeµsetµtoµ0.0.µHowever,µitµcan¡X>beµsetµtoµaµdifferentµvalueµinµorderµtoµcompensateµaµfrequency¡X…offset.¡þþCORRELATOR_THRESHOLDµ(I)¡X`Specifiesµtheµthresholdµforµpreambleµdetectionµinµtheµcorrelator.¡X¦Theµnumberµofµtoleratedµerrorsµinµtheµsynchronizationµfieldµis¡Xí32-²CORRELATOR_THRESHOLD².¡þ	fLENGTH_OF_SEARCH_WINDOWµ(I)¡X	ÈSpecifiesµtheµwindowµinµwhichµtheµcorrelatorµsearchesµforµthe¡X
synchronizationµfield.µItµisµenteredµasµtheµnumberµofµbitsµinµthis¡X
Uwindow.¡X
ÎForµaµdetailedµdescription,µseeµtheµmodelµdefinitionµ(².mdef²)µfileµof¡Xtheµ²DECT_CORRELATOR²µmodel.’BÞD“I501ileaf_page_string1:61¥	öä¥	öä¡#!²âdect³61¡þÉ²N_CORRECT_CRC_A´µ(I)¡X:Specifiesµwhetherµorµnotµtheµerrorµcorrectionµcapabilitiesµofµthe¡XA³fieldµdecoderµareµused:¡”,²N_CORRECT_CRC_A²µ=µ0:µµNoµerrorµcorrectionµisµperformed.¡”±²N_CORRECT_CRC_A²µ=µ1:µµOneµerrorµperµcodeµwordµisµcorrected.¡”7²N_CORRECT_CRC_A²µ=µ2:µµUpµtoµtwoµerrorsµperµcodeµwordµare¡”corrected.¡þðN_CORRECT_CRC_BEµ(I)¡XaSpecifiesµwhetherµorµnotµtheµerrorµcorrectionµcapabilitiesµofµthe¡X¨B³fieldµdecoderµareµusedµforµE³typeµB³Fields:¡”T²N_CORRECT_CRC_BE²µ=µ0:µµNoµerrorµcorrectionµisµperformed.¡”Ù²N_CORRECT_CRC_BE²µ=µ1:µµOneµerrorµperµcodeµwordµisµcorrected.¡”^²N_CORRECT_CRC_BE²µ=µ2:µµUpµtoµtwoµerrorsµperµcodeµwordµare¡”§corrected.¡þN_CORRECT_CRC_BUµ(I)¡X‰Specifiesµwhetherµorµnotµtheµerrorµcorrectionµcapabilitiesµofµthe¡XÏB³fieldµdecoderµareµusedµforµU³typeµB³Fieldsµ(thisµappliesµto¡X	protectedµinformationµbitsµonlyµ²I_PROTECT²µ=µ1):¡”	Á²N_CORRECT_CRC_BU²µ=µ0:µµNoµerrorµcorrectionµisµperformed.¡”
G²N_CORRECT_CRC_BU²µ=µ1:µµOneµerrorµperµcodeµwordµisµcorrected.¡”
Ì²N_CORRECT_CRC_BU²µ=µ2:µµUpµtoµtwoµerrorsµperµcodeµwordµare¡”corrected.’ÞõD“I501ileaf_page_string1:62¥	öä¥	öä¡6!²âdect³62¡þÉ²NUM_U_SLOTS´µ(I)¡X0Thisµparameterµisµusedµtogetherµwithµ²NUM_E_SLOTS²µtoµgenerateµthe¡XvA³fieldµbitsµcontrollingµwhetherµtheµB³fieldµofµtheµcorresponding¡X½double³slotµisµU³typeµorµE³type.µInµthisµexampleµschematic,µeach¡X²NUM_U_SLOTS²µU³typeµdouble³slotsµareµsucceededµbyµ²NUM_E_SLOTS²¡XJE³typeµdouble³slots.µ²NUM_U_SLOTS²µorµ²NUM_E_SLOTS²µmayµequalµzero.µIf¡X‘bothµequalµzero,µonlyµE³typeµB³fieldsµareµgenerated.¡þNUM_E_SLOTSµ(I)¡XzThisµparameterµisµusedµtogetherµwithµ²NUM_U_SLOTS²µtoµgenerateµthe¡XÀA³fieldµbitsµcontrollingµwhetherµtheµB³fieldµofµtheµcorresponding¡Xdouble³slotµisµU³typeµorµE³type.µInµthisµexampleµschematic,µeach¡XM²NUM_U_SLOTS²µU³typeµdouble³slotsµareµsucceededµbyµ²NUM_E_SLOTS²¡X”E³typeµdouble³slots.µ²NUM_U_SLOTS²µorµ²NUM_E_SLOTS²µmayµequalµzero.µIf¡XÛbothµequalµzero,µonlyµE³typeµB³fieldsµareµgenerated.¡þ]NUM_SLOTSµ(I)¡XÄSpecifiesµtheµnumberµofµdouble³slotsµprocessedµbeforeµthe¡X
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ððxx<<‡‡ÃÃááððxx<<‡‡ÃÃááá<<xxððááÃÃ‡‡<<xxððááÃÃ‡‡áîîÿÿ»»ÿÿîîÿÿ»»ÿÿîîÿÿ»»ÿÿîîÿÿ»»ÿÿá»»îî»»îî»»îî»»îî»»îî»»îî»»îî»»îîáªªUUªªUUªªUUªªUUªªUUªªUUªªUUªªUUáDDDDDDDDDDDDDDDDáDDDDDDDDá@@@@@@@@ááÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌáÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿáBB$$$$BBBB$$$$BBá€€@@  €€@@  áÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÉ<É ÉxÉ ÉÉdÉPÉ(É	ä’Õ“D“I501ileaf_page_string1:63¥	öä¥	öä¡#!²âdect³63¡,Û²a_field_gen¡,]²Generates´µtheµA-field¡,÷²Description¡†\²ThisµmodelµgeneratesµtheµA-fieldµfromµ8µheaderµbitsµ(H-field)µwhichµare¡†¢readµfromµtheµinputµportsµH0µtoµH7µandµ40µtailµbitsµ(T-field)µreadµfromµthe¡†éinputµportµT.µ16µparityµbitsµareµappendedµtoµtheµdataµsectionµaccordingµto¡†/theµR-CRCµdefinedµinµtheµDECTµstandard.¡,ù²Input´µPorts¡†]²H0¡†²²Type:²³INT¡†$Bit´µ0µofµtheµH-field.µOneµsampleµisµreadµforµeachµslot.¡†™²H1¡†ï²Type:²³INT¡†`Bitµ1µofµtheµH-field.µOneµsampleµisµreadµforµeachµslot.¡†Ö²H2¡†+²Type:²³INT¡†œBitµ2µofµtheµH-field.µOneµsampleµisµreadµforµeachµslot.¡†	²H3¡†	g²Type:²³INT¡†	ØBitµ3µofµtheµH-field.µOneµsampleµisµreadµforµeachµslot.¡†
N²H4¡†
£²Type:²³INT¡†Bitµ4µofµtheµH-field.µOneµsampleµisµreadµforµeachµslot.’“üD“I501ileaf_page_string1:64¥	öä¥	öä¡6!²âdect³64¡†É²H5¡†²Type:²³INT¡†ŽBit´µ5µofµtheµH-field.µOneµsampleµisµreadµforµeachµslot.¡†²H6¡†W²Type:²³INT¡†ÇBitµ6µofµtheµH-field.µOneµsampleµisµreadµforµeachµslot.¡†<²H7¡†‘²Type:²³INT¡†Bitµ7µofµtheµH-field.µOneµsampleµisµreadµforµeachµslot.¡†u²T¡†Ê²Type:²³INT¡†:T-fieldµbits.µ40µsamplesµareµreadµforµeachµslot.¡,²Output´µPorts¡†d²A_FIELD¡†¹²Type:²³INT¡†)64´µbitsµareµoutputµforµeachµslot:µ8µH-fieldµbitsµfollowedµbyµ40µT-fieldµbits¡†pandµ16µparityµbits.¡,	6²Implementations¡†	š²a_field_gen¡†	ï²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³a_field_gen¡,
±²Classes¡†²DECT’ü”D“I501ileaf_page_string1:65¥	öä¥	öä¡#!²âdect³65¡,Û²b_field_gen_08j¡,M²Generates´µtheµB-fieldµforµDECTµHalfµSlot¡,Ñ²Description¡†,²ThisµmodelµgeneratesµtheµB-fieldµforµhalfµslotsµandµoperatesµinµoneµofµthe¡†sfollowingµfourµmodes:¡†Õ²´µµµ(1)µGenerateµB-fieldµcontainingµprotectedµdataµfromµthe¡†µµµµµµµinformationµchannelsµ(U-typeµB-field).¡†Iµµµ(2)µGenerateµB-fieldµcontainingµnon-protectedµdataµfromµthe¡†ƒµµµµµµµinformationµchannelsµ(U-typeµB-Field).¡†½µµµ(3)µGenerateµB-fieldµcontainingµprotectedµdataµfromµtheµcontrolµ¡†÷µµµµµµµchannelsµ(E-typeµB-field).µ¡†2µµµ(4)µIfµH4,µH5,µandµH6µareµequalµtoµ1µ(noµB-fieldµisµpresent),µonlyµ¡†lµµµµµµµzerosµareµoutput.¡†Î²The´µE/U-multiplexerµisµcontrolledµbyµtheµB-fieldµidentityµbitsµH4,µH5,µand¡†H6.µµOneµdataµitemµisµreadµfromµeachµofµtheseµportsµforµeveryµslot¡†[processed.¡†ÃTheµprotected/non-protectedµmodeµforµU-typeµB-fieldsµisµselectedµby¡†	theµµI_PROTECTµinput.µOneµdataµitemµisµreadµfromµthisµportµforµeachµslot,¡†PbutµµdataµisµignoredµifµtheµB-fieldµcontainsµE-typeµorµnoµdata.¡†¸DecodingµofµtheµB-fieldµidentityµbitsµ(theyµareµlocatedµinµtheµA-field¡†ÿheaderµatµpositionsµa4,µa5,µandµa6)µisµdoneµasµfollows:¡†`²´µµµH4µH5µH6µµµµµ¡†›µµµ0µµ0µµXµµµU-typeµB-field¡†Õµµµ0µµ1µµXµµµE-typeµB-field¡†	µµµ1µµ0µµXµµµE-typeµB-field¡†	Iµµµ1µµ1µµ0µµµE-typeµB-field¡†	ƒµµµ1µµ1µµ1µµµnoµB-field¡†	½µµµ(X:µdon'tµcare)¡†
²The´µparameterµJµspecifiesµtheµlengthµofµtheµhalf-slotµB-field.µµOne¡†
fhalf-slotµB-fieldµcontainsµ84+Jµbits.¡†
ÎIfµinformationµdataµhasµtoµbeµnon-protected,µ80+Jµdataµbitsµareµreadµfrom¡†theµinputµIN_CHANNEL.’”BD“I501ileaf_page_string1:66¥	öä¥	öä¡6!²âdect³66¡†É²If´µinformationµdataµhasµtoµbeµprotected,µ64µdataµbitsµareµreadµfromµthe¡†inputµIP_CHANNEL,µandµ16µparityµbitsµareµappended.µµThen,µJµfillµbits¡†Vareµappendedµtoµobtainµaµslotµcontainingµ80+Jµbits.µµTheµvalueµofµtheµfill¡†bitsµisµestablishedµbyµtheµparameterµFILL_BIT.¡†ToµtransmitµanµE-typeµB-field,µ64µdataµbitsµareµreadµfromµtheµinput¡†FM_CF_GF_CHANNELS,µandµ16µparityµbitsµareµgeneratedµand¡†appended.µµThen,µJµfillµbitsµareµappendedµtoµobtainµaµslotµcontainingµ80+J¡†Óbits.µµTheµvalueµofµtheµfillµbitsµisµestablishedµbyµtheµparameterµFILL_BIT.¡†6IfµtheµB-fieldµidentityµbitsµH4,µH5,µandµH6µindicateµthatµnoµB-fieldµis¡†}present,µnoµdataµisµreadµfromµtheµinputsµIN_CHANNEL,µIP_CHANNEL,¡†ÃandµµM_CF_GF_CHANNEL.¡†&Theµblocksµofµ80+Jµdataµbitsµobtainedµasµspecifiedµaboveµareµscrambled¡†msynchronouslyµthenµtheµX-fieldµcontainingµ4µparityµbitsµisµgeneratedµand¡†³appended.µµThisµresultsµinµaµslotµofµ84+Jµbits.¡,K²Parameters¡†£²J¡†ð²Type:²³INT¡†OSpecifiesµtheµlengthµofµtheµhalf-slotµB-field.µOneµhalf-slotµB-field¡†–containsµ84+Jµbits.¡†ø²FILL_BIT¡†F²Type:²³INT¡†¥SpecifiesµtheµvalueµofµtheµfillµbitsµinsertedµforµprotectedµtransmissionµifµJ¡†ëisµgreaterµthanµ0.¡,	ƒ²Input´µPorts¡†	Û²I_PROTECT¡†
)²Type:²³INT¡†
‡Signal´µcontrollingµprotectedµorµnon-protectedµtransmissionµofµinformation¡†
Îdata.µOneµdataµitemµisµreadµfromµthisµportµforµeachµhalf-slotµB-field,µbut¡†dataµisµignoredµifµtheµB-fieldµcontainsµE-typeµorµnoµdata.’BçD“I501ileaf_page_string1:67¥	öä¥	öä¡#!²âdect³67¡†Ã²´µµµµµµI_PROTECTµ=µ1:µprotectedµdataµisµtransmitted¡†ýµµµµµµI_PROTECTµ=µ0:µnon-protectedµdataµisµtransmitted¡†g²IN_CHANNEL¡†º²Type:²³INT¡†&Input´µportµforµinformationµdataµthatµmustµbeµnon-protected.µ80+Jµdata¡†mitemsµareµreadµforµeachµnon-protectedµU-typeµhalfµslotµB-field.¡†Ý²IP_CHANNEL¡†0²Type:²³INT¡†œInputµportµforµinformationµdataµthatµmustµbeµprotected.µ64µdataµitemsµare¡†âreadµforµeachµprotectedµU-typeµhalfµslotµB-field.¡†R²M_CF_GF_CHANNELS¡†¥²Type:²³INT¡†InputµportµforµE-typeµdata,µwhichµisµalwaysµprotected.µNoµdataµitemµis¡†XreadµfromµtheµinputµportµI_PROTECTµinµthisµcase.µµ64µdataµitemsµare¡†ŸreadµforµeachµE-typeµhalf-slotµB-field.¡†²LOAD_SCRAMBLER_N¡†b²Type:²³INT¡†ÎSignalµcontrollingµtheµscrambler.µTheµshiftµregisterµusedµtoµgenerateµthe¡†scramblingµsequenceµisµ(re)loadedµwithµtheµinitialµstateµcorrespondingµto¡†[theµcurrentµframeµnumberµifµaµzeroµappearsµonµthisµport.¡†Ë80+Jµdataµitemsµareµreadµfromµthisµportµforµeveryµhalfµslot.¡†	;²FRAME_NO¡†	Ž²Type:²³INT¡†	úThisµsignalµcontrolsµtheµscramblerµandµestablishesµtheµcurrentµframe¡†
Anumber.µThisµinputµportµisµevaluatedµonlyµifµtheµinputµsignalµLOAD_N¡†
‡goesµlowµ(µ0µ).µOtherwise,µdataµprovidedµonµthisµportµisµignored.µThe¡†
Îcurrentµframeµnumberµisµusedµtoµdetermineµtheµinitialµstateµofµtheµshift¡†registerµusedµtoµµgenerateµtheµscramblingµsequence.’ç›D“I501ileaf_page_string1:68¥	öä¥	öä¡6!²âdect³68¡†É²80+J´µdataµitemsµareµreadµfromµthisµportµforµeveryµhalfµslot.¡†I²H4¡†¢²Type:²³INT¡†B-fieldµidentityµbit:µH4µbitµofµtheµcurrentµA-fieldµ(bitµ4µofµtheµA-field¡†eheader).¡†åTheµbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†+E-type,µorµnoµdata.¡†«²H5¡†²Type:²³INT¡†€B-fieldµidentityµbit:µH5µbitµofµtheµcurrentµA-fieldµ(bitµ5µofµtheµA-field¡†Çheader).¡†FTheµbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†E-type,µorµnoµdata.¡†²H6¡†f²Type:²³INT¡†âB-fieldµidentityµbit:µH6µbitµofµtheµcurrentµA-fieldµ(bitµ6µofµtheµA-field¡†)header).¡†¨TheµbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†ïE-type,µorµnoµdata.¡,	Ô²Output´µPorts¡†
?²B_FIELD¡†
™²Type:²³INT¡†B-field´µconsistingµofµ84+Jµbitsµperµhalfµslot.’›ñD“I501ileaf_page_string1:69¥	öä¥	öä¡#!²âdect³69¡,Ï²Implementations¡†2²b_field_gen_08j¡††²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³b_field_gen_08j¡,F²Classes¡†©²DECT’ñÆD“I501ileaf_page_string1:70¥	öä¥	öä¡6!²âdect³70¡,Û²b_field_gen_32¡,]²Generates´µtheµB-fieldµforµDECTµFullµSlot¡,ö²Description¡†[²ThisµmodelµgeneratesµtheµB-fieldµforµfullµslotsµandµoperatesµinµoneµofµthe¡†¡followingµfourµmodes:¡†²´µµµ(1)µGenerateµB-fieldµcontainingµprotectedµdataµfromµthe¡†Kµµµµµµµinformationµchannelsµ(U-typeµB-field).¡†…µµµ(2)µGenerateµB-fieldµcontainingµnon-protectedµdataµfromµthe¡†¿µµµµµµµinformationµchannelsµ(U-typeµB-Field).¡†ùµµµ(3)µGenerateµB-fieldµcontainingµprotectedµdataµfromµtheµcontrolµ¡†3µµµµµµµchannelsµ(E-typeµB-field).µ¡†mµµµ(4)µIfµH4,µH5,µandµH6µareµequalµtoµ1µ(noµB-fieldµisµpresent),µonlyµ¡†§µµµµµµµzerosµareµoutput.µ¡†âµ¡†µ¡†‹²The´µE/U-multiplexerµisµcontrolledµbyµtheµB-fieldµidentityµbitsµH4,µH5,µand¡†ÑH6.µOneµdataµitemµisµreadµfromµeachµofµtheseµportsµforµeveryµslot¡†processed.¡†Theµprotected/non-protectedµmodeµforµU-typeµB-fieldsµisµselectedµby¡†ÔtheµI_PROTECTµinput.µOneµdataµitemµisµreadµfromµthisµportµforµeachµslot,¡†butµdataµisµignoredµifµtheµB-fieldµcontainsµE-typeµorµnoµdata.¡†DecodingµofµtheµB-fieldµidentityµbitsµ(theyµareµlocatedµinµtheµA-field¡†Öheaderµatµpositionsµa4,µa5,µandµa6)µisµdoneµasµfollows:¡†	E²´µµµH4µH5µH6µ¡†	€µ¡†	ºµµµ0µµ0µµXµµµU-typeµB-field¡†	ôµµµ0µµ1µµXµµµE-typeµB-field¡†
.µµµ1µµ0µµXµµµE-typeµB-field¡†
hµµµ1µµ1µµ0µµµE-typeµB-field¡†
¢µµµ1µµ1µµ1µµµnoµB-fieldµ¡†
Üµ¡†µµµ(X:µdon'tµcare)’ÆÚD“I501ileaf_page_string1:71¥	öä¥	öä¡#!²âdect³71¡†É²If´µinformationµdataµhasµtoµbeµnon-protected,µ320µdataµbitsµareµreadµfrom¡†theµinputµIN_CHANNEL.¡†ŒIfµinformationµdataµhasµtoµbeµprotected,µ4µblocksµofµ64µdataµbitsµareµread¡†ÓfromµtheµinputµIP_CHANNEL,µandµ16µparityµbitsµareµappendedµforµeach¡†ofµtheseµblocks.¡†•ToµtransmitµanµE-typeµB-field,µ4µblocksµofµ64µdataµbitsµareµreadµfromµthe¡†ÜinputµM_CF_GF_CHANNELS,µandµ16µparityµbitsµareµgeneratedµand¡†#appendedµforµeachµofµtheseµblocks.¡†ŸIfµtheµB-fieldµidentityµbitsµH4,µH5,µandµH6µindicateµthatµnoµB-fieldµis¡†åpresent,µnoµdataµisµreadµfromµtheµinputsµIN_CHANNEL,µIP_CHANNEL,¡†,andµµM_CF_GF_CHANNEL.¡†¨Theµblocksµofµ320µdataµbitsµobtainedµasµspecifiedµaboveµareµscrambled¡†ïsynchronously.µTheµX-fieldµcontainingµ4µparityµbitsµisµthenµgeneratedµand¡†6appendedµresultingµinµaµslotµofµ324µbits.¡,²Input´µPorts¡†z²I_PROTECT¡†Ò²Type:²³INT¡†JSignal´µcontrollingµprotectedµorµnon-protectedµtransmissionµofµinformation¡†‘data.µOneµdataµitemµisµreadµfromµthisµportµforµeachµfull-slotµB-field,µbut¡†×dataµisµignoredµifµtheµB-fieldµcontainsµE-typeµorµnoµdata.¡†	M²´µµµµµµI_PROTECTµ=µ1:µprotectedµdataµisµtransmitted¡†	ˆµµµµµµI_PROTECTµ=µ0:µnon-protectedµdataµisµtransmitted¡†	þ²IN_CHANNEL¡†
V²Type:²³INT¡†
ÎInput´µportµforµinformationµdataµthatµmustµbeµnon-protected.µ320µdata¡†itemsµareµreadµforµeachµnon-protectedµU-typeµfull-slotµB-field.’ÚÖD“I501ileaf_page_string1:72¥	öä¥	öä¡6!²âdect³72¡†É²IP_CHANNEL¡†²Type:²³INT¡†‚Input´µportµforµinformationµdataµthatµmustµbeµprotected.µ256µdataµitemsµare¡†ÈreadµforµeachµprotectedµU-typeµfull-slotµB-field.¡†4²M_CF_GF_CHANNELS¡†…²Type:²³INT¡†íInputµportµforµE-typeµdata,µwhichµisµalwaysµprotected.µµ256µdataµitems¡†3areµreadµforµeachµE-typeµfull-slotµB-field.µDataµfromµtheµlogicalµchannels¡†zM,µCF,µandµGFµareµinputµhere.¡†æ²LOAD_SCRAMBLER_N¡†7²Type:²³INT¡†žSignalµcontrollingµtheµscrambler.µTheµshiftµregisterµusedµtoµgenerateµthe¡†åscramblingµsequenceµisµ(re)loadedµwithµtheµinitialµstateµcorrespondingµto¡†,theµcurrentµframeµnumberµifµaµzeroµappearsµonµthisµport.µ320µdataµitems¡†rareµreadµfromµthisµportµforµeveryµfullµslot.¡†Þ²FRAME_NO¡†/²Type:²³INT¡†–Thisµsignalµcontrolsµtheµscramblerµandµestablishesµtheµcurrentµframe¡†Ýnumber.µµThisµinputµportµisµevaluatedµonlyµifµtheµinputµsignalµLOAD_N¡†$goesµlowµ(µ0µ).µµOtherwise,µdataµprovidedµonµthisµportµisµignored.µµThe¡†jcurrentµframeµnumberµisµusedµtoµdetermineµtheµinitialµstateµofµµtheµshift¡†±registerµusedµtoµgenerateµtheµscramblingµsequence.µ320µdataµitemsµare¡†÷readµfromµthisµportµforµeveryµfullµslot.¡†	c²H4¡†	´²Type:²³INT¡†
B-fieldµidentityµbit:µH4µbitµofµtheµcurrrentµA-fieldµ(bitµ4µofµtheµA-field¡†
bheader).¡†
ÎTheµbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†E-type,µorµnoµdata.’ÖD“I501ileaf_page_string1:73¥	öä¥	öä¡#!²âdect³73¡†É²H5¡†²Type:²³INT¡†B-field´µidentityµbit:µH5µbitµofµtheµcurrentµA-fieldµ(bitµ5µofµtheµA-field¡†Ôheader).¡†GTheµbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†ŽE-type,µorµnoµdata.¡†²H6¡†V²Type:²³INT¡†ÅB-fieldµidentityµbit:µH6µbitµofµtheµcurrentµA-fieldµ(bitµ6µofµtheµA-field¡†header).¡†TheµbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†ÆE-type,µorµnoµdata.¡,Š²Output´µPorts¡†í²B_FIELD¡†B²Type:²³INT¡†±B-field´µconsistingµofµ324µbitsµperµfullµslot.¡,u²Implementations¡†Ø²b_field_gen_32¡†	-²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³b_field_gen_32¡,	í²Classes¡†
P²DECT’ÊD“I501ileaf_page_string1:74¥	öä¥	öä¡6!²âdect³74¡,Û²b_field_gen_80¡,]²Generates´µtheµB-fieldµforµDECTµDoubleµSlot¡,ö²Description¡†[²ThisµmodelµgeneratesµtheµB-fieldµforµdoubleµslotsµandµoperatesµinµoneµof¡†¡theµfollowingµfourµmodes:¡†²´µµµ(1)µGenerateµB-fieldµcontainingµprotectedµdataµfromµthe¡†Kµµµµµµµinformationµchannelsµ(U-typeµB-field).¡†…µµµ(2)µGenerateµB-fieldµcontainingµnon-protectedµdataµfromµthe¡†¿µµµµµµµinformationµchannelsµ(U-typeµB-Field).¡†ùµµµ(3)µGenerateµB-fieldµcontainingµprotectedµdataµfromµtheµcontrolµ¡†3µµµµµµµchannelsµ(E-typeµB-field).µ¡†mµµµ(4)µIfµH4,µH5,µandµH6µareµequalµtoµ1µ(noµB-fieldµisµpresent),µonlyµ¡†§µµµµµµµzerosµareµoutput.µ¡†âµ¡†µ¡†‹²The´µE/U-multiplexerµisµcontrolledµbyµtheµB-fieldµidentityµbitsµH4,µH5,µand¡†ÑH6.µOneµdataµitemµisµreadµfromµeachµofµtheseµportsµforµeveryµslot¡†processed.¡†Theµprotected/non-protectedµmodeµforµU-typeµB-fieldsµisµselectedµby¡†ÔtheµI_PROTECTµinput.µOneµdataµitemµisµreadµfromµthisµportµforµeachµslot,¡†butµdataµisµignoredµifµtheµB-fieldµcontainsµE-typeµorµnoµdata.¡†DecodingµofµtheµB-fieldµidentityµbitsµ(theyµareµlocatedµinµtheµA-field¡†Öheaderµatµpositionsµa4,µa5,µandµa6)µisµdoneµasµfollows:¡†	E²´µµµH4µH5µH6µ¡†	€µ¡†	ºµµµ0µµ0µµXµµµU-typeµB-field¡†	ôµµµ0µµ1µµXµµµE-typeµB-field¡†
.µµµ1µµ0µµXµµµE-typeµB-field¡†
hµµµ1µµ1µµ0µµµE-typeµB-field¡†
¢µµµ1µµ1µµ1µµµnoµB-fieldµ¡†
Üµ¡†µµµ(X:µdon'tµcare)’ÊâD“I501ileaf_page_string1:75¥	öä¥	öä¡#!²âdect³75¡†É²If´µinformationµdataµhasµtoµbeµnon-protected,µ800µdataµbitsµareµreadµfrom¡†theµinputµIN_CHANNEL.¡†ŒIfµinformationµdataµhasµtoµbeµprotected,µ10µblocksµofµ64µdataµbitsµareµread¡†ÓfromµtheµinputµIP_CHANNEL,µandµ16µparityµbitsµareµappendedµforµeach¡†ofµtheseµblocks.¡†•ToµtransmitµanµE-typeµB-field,µ10µblocksµofµ64µdataµbitsµareµreadµfrom¡†ÜtheµinputµM_CF_GF_CHANNELS,µandµ16µparityµbitsµareµgeneratedµand¡†#appendedµforµeachµofµtheseµblocks.¡†ŸIfµtheµB-fieldµidentityµbitsµH4,µH5,µandµH6µindicateµthatµnoµB-fieldµis¡†åpresent,µnoµdataµisµreadµfromµtheµinputsµIN_CHANNEL,µIP_CHANNEL,¡†,andµµM_CF_GF_CHANNEL.¡†¨Theµblocksµofµ800µdataµbitsµobtainedµasµspecifiedµaboveµareµscrambled¡†ïsynchronously.µµµTheµX-fieldµcontainingµ4µparityµbitsµisµthenµgenerated¡†6andµappendedµresultingµinµaµslotµofµ804µbits.¡,²Input´µPorts¡†z²I_PROTECT¡†Ò²Type:²³INT¡†JSignal´µcontrollingµprotectedµorµnon-protectedµtransmissionµofµinformation¡†‘data.µOneµdataµitemµisµreadµfromµthisµportµforµeachµdouble-slotµB-field,¡†×butµdataµisµignoredµifµtheµB-fieldµcontainsµE-typeµorµnoµdata.¡†	M²´µµµµµµI_PROTECTµ=µ1:µprotectedµdataµisµtransmitted¡†	ˆµµµµµµI_PROTECTµ=µ0:µnon-protectedµdataµisµtransmitted¡†	þ²IN_CHANNEL¡†
V²Type:²³INT¡†
ÎInput´µportµforµinformationµdataµthatµmustµbeµnon-protected.µ800µdata¡†itemsµareµreadµforµeachµnon-protectedµU-typeµdouble-slotµB-field.’âÀD“I501ileaf_page_string1:76¥	öä¥	öä¡6!²âdect³76¡†É²IP_CHANNEL¡†²Type:²³INT¡†Input´µportµforµinformationµdataµthatµmustµbeµprotected.µ640µdataµitemsµare¡†ÖreadµforµeachµprotectedµU-typeµdouble-slotµB-field.¡†L²M_CF_GF_CHANNELS¡†¡²Type:²³INT¡†InputµportµforµE-typeµdata,µwhichµisµalwaysµprotected.µNoµdataµitemµis¡†YreadµfromµtheµinputµportµI_PROTECTµinµthisµcase.µ640µdataµitemsµare¡†ŸreadµforµeachµE-typeµdouble-slotµB-field.µDataµfromµtheµlogicalµchannels¡†æM,µCF,µandµGFµareµinputµhere.¡†[²LOAD_SCRAMBLER_N¡†°²Type:²³INT¡†"Signalµcontrollingµtheµscrambler.µTheµshiftµregisterµusedµtoµgenerateµthe¡†hscramblingµsequenceµisµ(re)loadedµwithµtheµinitialµstateµcorrespondingµto¡†¯theµcurrentµframeµnumberµifµaµzeroµappearsµonµthisµport.µ800µdataµitems¡†õareµreadµfromµthisµportµforµeveryµdoubleµslot.¡†k²FRAME_NO¡†À²Type:²³INT¡†1Thisµsignalµcontrolsµtheµscramblerµandµestablishesµtheµcurrentµframe¡†xnumber.µµThisµinputµportµisµevaluatedµonlyµifµtheµinputµsignalµLOAD_N¡†¾goesµlowµ(µ0µ).µµOtherwise,µdataµprovidedµonµthisµportµisµignored.µµThe¡†	currentµframeµnumberµisµusedµtoµestablishµtheµinitialµstateµofµµtheµshift¡†	Kregisterµusedµtoµgenerateµtheµscramblingµsequence.µ800µdataµitemsµare¡†	’readµfromµthisµportµforµeveryµdoubleµslot.¡†
²H4¡†
]²Type:²³INT¡†
ÎB-fieldµidentityµbit:µH4µbitµofµtheµcurrentµA-fieldµ(bitµ4µofµtheµA-field¡†header).’ÀD“I501ileaf_page_string1:77¥	öä¥	öä¡#!²âdect³77¡†É²The´µbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†E-type,µorµnoµdata.¡†„²H5¡†Ø²Type:²³INT¡†HB-fieldµidentityµbit:µH5µbitµofµtheµcurrentµA-fieldµ(bitµ5µofµtheµA-field¡†header).¡†TheµbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†JE-type,µorµnoµdata.¡†¾²H6¡†²Type:²³INT¡†ƒB-fieldµidentityµbit:µH6µbitµofµtheµcurrentµA-fieldµ(bitµ6µofµtheµA-field¡†Éheader).¡†=TheµbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†„E-type,µorµnoµdata.¡,I²Output´µPorts¡†­²B_FIELD¡†²Type:²³INT¡†rB-field´µconsistingµofµ804µbitsµperµdoubleµslot.¡,	7²Implementations¡†	›²b_field_gen_80¡†	ï²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³b_field_gen_80¡,
±²Classes¡†²DECT’¬D“I501ileaf_page_string1:78¥	öä¥	öä¡6!²âdect³78¡,Û²CYCLIC_DECODER_2¡,M²Decoder´µforµSystematicµ(N,K)µCyclicµCodes¡,Ò²Description¡†.²Thisµmodelµperformsµdecodingµofµsystematicµ(N,K)µcyclicµcodesµµwith¡†teitherµparityµcheck,µsingleµerror,µorµdoubleµerrorµcorrection.¡†ÝCodeµDescription¡†ETheµcodeµdescriptionµisµpassedµtoµthisµdecoderµ(andµtheµcorresponding¡†ŒcoderµCYCLIC_ENCODER_2)µbyµ3µparametersµandµanµinputµdataset¡†Òcontainingµoneµrecord.µTheµparametersµestablishµtheµcodeµparametersµK¡†andµNµasµwellµasµaµparityµinversionµflagµforµtheµlastµparityµbit,¡†_INVERT_LAST_PARITY_BIT.µµTheµdatasetµcontainsµtheµexponentsµµof¡†¦theµcodeµpolynomialµinµarbitraryµorder.¡†CodeµParametersµN,µK,µandµINVERT_LAST_PARITY_BIT¡†wAµblockµofµKµinformationµbitsµisµcodedµintoµaµcodewordµofµNµcodeµbits.¡†½Theµcodeµisµsystematic,µthatµis,µtheµfirstµKµbitsµofµtheµcodewordµareµthe¡†informationµbits,µtheµlastµN-Kµbitsµareµtheµparityµbits.µFor¡†JINVERT_LAST_PARITY_BITµ=µ-1,µtheµlastµparityµbitµisµlogicallyµinverted.¡†‘ForµINVERT_LAST_PARITY_BITµ=µ1,µitµisµnotµinverted.µTheµparityµbits¡†Øareµobtainedµbyµdividingµtheµinformationµbitsµbyµtheµfollowingµcode¡†polynomial:¡†€²´µµµg(x)µ=µx**exp(1)µ+µ...µ+µx**exp(m)¡†ã²where´µ0µ<=µexp(i)µ>=µN-K.µNoteµthatµ0µandµN-Kµmustµbeµexponent¡†	)valuesµinµtheµpolynomial.¡†	’DecoderµFunctions¡†	úTheµparameterµERROR_CORRECTIONµdefinesµtheµnumberµof¡†
Acorrectableµerrorsµperµblock.µForµERROR_CORRECTIONµ=µ0,µthe¡†
‡decoderµonlyµµperformsµaµparityµcheck.µNoteµthatµthisµdecoderµonly¡†
Îcorrectsµµsingle-bitµerrorsµ(ERROR_CORRECTIONµ=µ1)µorµdouble-bit¡†errorsµµ(ERROR_CORRECTIONµ=µ2).’¬æD“I501ileaf_page_string1:79¥	öä¥	öä¡#!²âdect³79¡†É²Output´µportµINFORMATION_BITSµprovidesµtheµ(corrected)µinformation¡†bits.µWhenµcorrectionµisµnotµpossible,µtheµreceivedµuncorrectedµµbitsµare¡†Vprovided.¡†¹OutputµportµSTATUS_BITSµprovidesµstatusµinformation.µµForµµcorrectable¡†orµerror-freeµinformationµbitµframes,µKµonesµareµoutput.µµFor¡†Fnon-correctableµframes,µKµzerosµareµoutput.¡,Þ²Parameters¡†7²N¡†…²Type:²³INT¡†ãSpecifiesµtheµlengthµofµtheµcodeµwordµ(Nµbits).¡†G²K¡†”²Type:²³INT¡†óSpecifiesµtheµlengthµofµtheµinformationµwordµ(Kµbits).¡†V²INVERT_LAST_PARITY_BIT¡†¤²Type:²³INT¡†Parityµinversionµflagµforµtheµlastµparityµbit.¡†`²´µµµµµINVERT_LAST_PARITY_BITµ=µ-1:µlastµparityµbitµisµinverted¡†šµµµµµINVERT_LAST_PARITY_BITµ=µ1:µlastµparityµbitµisµnotµinverted¡†÷²CORRECTABLE_ERRORS¡†E²Type:²³INT¡†¤Number´µofµcorrectableµerrorsµperµcodeµframe.µµIf¡†êCORRECTABLE_ERRORSµ=µ0,µonlyµparityµcheckµisµperformed.µNote¡†	1thatµtheµmaximumµnumberµofµcorrectableµerrorsµisµlimitedµtoµ2µforµthis¡†	wmodel.¡,
²Input´µPorts¡†
h²CODED_BITS¡†
¶²Type:²³INT¡†N´µreceivedµbitsµthatµareµreadµforµeveryµKµinformationµbits.’æD“I501ileaf_page_string1:80¥	öä¥	öä¡6!²âdect³80¡,Ï²Output´µPorts¡†/²INFORMATION_BITS¡†‚²Type:²³INT¡†íK´µinformationµbitsµthatµareµwrittenµforµeveryµNµcodeµbits.µWhenµerror¡†3correctionµisµpossible,µerrorsµareµcorrected.µµOtherwise,µtheµuncorrected¡†zinformationµbitsµareµwritten.¡†é²STATUS_BITS¡†<²Type:²³INT¡†§Statusµinformationµforµeachµinformationµbitµatµoutputµportµ1.µTheµfollowing¡†ídecodingµstatusµisµprovided:¡†V²´µµµµµµ1:µforµerror-freeµorµcorrectableµinformationµbits¡†µµµµµµ0:µforµnon-correctableµinformationµbits,µforµexample,µwithµ¡†Ëµµµµµµµµµparityµcheckµonly¡,}²Input´µDatasets¡†Ý²GENERATOR_POLYNOMIAL¡†0²This´µdatasetµconsistsµofµaµsingleµrecordµcontainingµtheµexponentsµofµthe¡†vgeneratorµpolynomial.¡†æForµmoreµinformation,µreferµtoµtheµdescriptionµsectionµforµthisµmodel.¡†p²Record³#1:²³GENERATOR_POLYNOMIAL_EXPONENTS³²Type:²³INT¡ÂÍ²GENERATOR_POLYNOMIAL_EXPONENT*¡,	Y²Error´µCodes¡†	¹²INVALID_CODE_POLYNOMIAL³²Error´µCode:³²1¡†
Theµcodeµpolynomialµexponentsµareµoutµofµrange;µcheckµtheµvaluesµfor¡†
Serrors.¡†
Â²PARAMETER_K_OUT_OF_RANGE³²ErrorµCode:³²2¡†Theµlengthµofµtheµinformationµwordµmustµbeµgreaterµthanµ0.’ÈD“I501ileaf_page_string1:81¥	öä¥	öä¡#!²âdect³81¡†É²PARAMETER_N_OUT_OF_RANGE³²Error´µCode:³²3¡†TheµlengthµofµtheµcodeµwordµmustµbeµgreaterµthanµK.¡†‘²PARAMETER_INVERT_LAST_PARITY_BIT_OUT_OF_RANGE³²ErrorµCode:³²4¡†æTheµparameterµINVERT_LAST_PARITY_BITµmustµbeµeitherµ-1µorµ1.¡†Y²REGISTER_LENGTH_EXCEEDS_31³²ErrorµCode:³²5¡†®Moreµthanµ31µparityµbitsµhaveµbeenµdefined;µthisµisµnotµsupportedµbyµthis¡†ômodel.¡†h²INVALID_ERROR_CORRECTION_PARAMETER³²ErrorµCode:³²6¡†¼TheµparameterµERROR_CORRECTIONµisµoutµofµrange;¡†ERROR_CORRECTIONµmustµbeµinµtheµrangeµ0µtoµ2.¡†v²LICENSE_ERROR³²ErrorµCode:³²7¡†ËTheµlicenseµforµthisµmodelµcouldµnotµbeµcheckedµout.¡,²Implementations¡†ò²cyclic_decoder_2¡†G²Type:²³SOURCE_CODE³²Language:²³C³²Function:²³M57_114_40_cyclic_decoder_¡†‰2¡†øSimulationµsourceµcode¡,¼²Classes¡†	 ²DECT¡†	tCODEC’ÈÚD“I501ileaf_page_string1:82¥	öä¥	öä¡6!²âdect³82¡,Û²CYCLIC_ENCODER_2¡,G²Encoder´µforµSystematicµ(N,K)µCyclicµCodes¡,Ã²Description¡†²Thisµmodelµperformsµencodingµforµsystematicµ(N,K)µcyclicµcodes.¡†~CodeµDescription¡†áTheµcodeµdescriptionµisµpassedµtoµthisµencoderµ(andµtheµcorresponding¡†(decoderµCYCLIC_DECODER_2)µbyµ3µparametersµandµanµinputµdataset¡†ncontainingµoneµrecord.µTheµparametersµestablishµtheµcodeµparametersµK¡†µandµNµasµwellµasµaµparityµinversionµflagµforµtheµlastµparityµbit,¡†üINVERT_LAST_PARITY_BIT.µµTheµdatasetµcontainsµtheµµexponentsµof¡†Btheµcodeµpolynomialµinµarbitraryµorder.¡†¥CodeµParametersµN,µK,µandµINVERT_LAST_PARITY_BIT¡†AµblockµofµKµinformationµbitµisµcodedµintoµaµcodewordµofµNµcodeµbit.µThe¡†Ocodeµisµsystematic,µthatµis,µtheµfirstµKµbitsµofµtheµcodewordµareµthe¡†–informationµbits,µtheµlastµN-Kµbitsµareµtheµparityµbits.µFor¡†ÜINVERT_LAST_PARITY_BITµ=µ-1,µtheµlastµparityµbitµisµlogicallyµinverted.¡†#ForµINVERT_LAST_PARITY_BITµ=µ1,µitµisµnotµinverted.µTheµparityµbits¡†iareµµobtainedµbyµdividingµtheµinformationµbitsµbyµtheµfollowingµcode¡†°polynomial:¡†²´µµµg(x)µ=µx**exp(1)µ+µ...µ+µx**exp(m)¡†j²where´µ0µ<=µexp(i)µ>=µN-K.µNoteµthatµ0µandµN-Kµmustµbeµexponent¡†°valuesµinµtheµpolynomial.¡†	RequiredµLicense¡†	wThisµmodelµrequiresµtheµlicenseµfeatureµCOSSAP_dect.¡,
²Parameters¡†
h²N¡†
µ²Type:²³INT¡†Specifiesµtheµlengthµofµtheµcodeµwordµ(Nµbits).’Ú¹D“I501ileaf_page_string1:83¥	öä¥	öä¡#!²âdect³83¡†É²K¡†²Type:²³INT¡†qSpecifies´µtheµlengthµofµtheµinformationµwordµ(Kµbits).¡†Ñ²INVERT_LAST_PARITY_BIT¡†²Type:²³INT¡†yParityµinversionµflagµforµtheµlastµparityµbit.¡†Ò²´µµµµµINVERT_LAST_PARITY_BITµ=µ-1:µlastµparityµbitµisµinverted¡†µµµµµINVERT_LAST_PARITY_BITµ=µ1:µlastµparityµbitµisµnotµinverted¡,•²Input´µPorts¡†ë²INFORMATION_BITS¡†7²Type:²³INT¡†’K´µinformationµbitsµthatµareµreadµforµeveryµframeµofµNµcodeµbits.¡,!²Output´µPorts¡†w²CODED_BITS¡†Ä²Type:²³INT¡†N´µcodedµbitsµthatµareµwrittenµforµeveryµframeµofµKµinformationµbits.¡,®²Input´µDatasets¡†²GENERATOR_POLYNOMIAL¡†P²This´µdatasetµconsistsµofµaµsingleµrecordµcontainingµtheµexponentsµofµthe¡†—generatorµpolynomial.¡†öForµmoreµinformation,µreferµtoµtheµdescriptionµsectionµofµthisµmodel.¡†	g²Record³#1:²³GENERATOR_POLYNOMIAL_EXPONENTS³²Type:²³INT¡Â	º²GENERATOR_POLYNOMIAL_EXPONENT*¡,
+²Error´µCodes¡†
²INVALID_CODE_POLYNOMIAL³²Error´µCode:³²1¡†
ÎTheµcodeµpolynomialµexponentsµareµoutµofµrange;µcheckµtheµvaluesµfor¡†errors.’¹|D“I501ileaf_page_string1:84¥	öä¥	öä¡6!²âdect³84¡†É²PARAMETER_K_OUT_OF_RANGE³²Error´µCode:³²2¡†Theµlengthµofµtheµinformationµwordµmustµbeµgreaterµthanµ0.¡†‘²PARAMETER_N_OUT_OF_RANGE³²ErrorµCode:³²3¡†æTheµlengthµofµtheµcodeµwordµmustµbeµgreaterµthanµK.¡†Y²PARAMETER_INVERT_LAST_PARITY_BIT_OUT_OF_RANGE³²ErrorµCode:³²4¡†®TheµparameterµINVERT_LAST_PARITY_BITµmustµbeµeitherµ-1µorµ1.¡†!²REGISTER_LENGTH_EXCEEDS_31³²ErrorµCode:³²5¡†vMoreµthanµ31µparityµbitsµhaveµbeenµdefined;µthisµisµnotµsupportedµbyµthis¡†¼model.¡†0²LICENSE_ERROR³²ErrorµCode:³²6¡†„Theµlicenseµforµthisµmodelµcouldµnotµbeµcheckedµout.¡,H²Implementations¡†«²cyclic_encoder_2¡†²Type:²³SOURCE_CODE³²Language:²³C³²Function:²³M57_114_40_cyclic_encoder_¡†B2¡,²Classes¡†f²DECT¡†ºCODEC’|^D“I501ileaf_page_string1:85¥	öä¥	öä¡#!²âdect³85¡,Û²dec_b_ident¡,M²Decodes´µtheµB-fieldµIdentityµBitsµofµtheµA-fieldµHeaderµandµGeneratesµµa¡,“ControlµSignalµforµtheµ(De)Multiplexer¡,²Description¡†r²ThisµmodelµdecodesµtheµB-fieldµidentityµbitsµH4,µH5,µandµH6µwhichµare¡†¹locatedµinµtheµA-fieldµheader.µµItµalsoµgeneratesµaµcontrolµsignalµµforµa¡†(de)multiplexer.¡†hDecodingµisµdoneµasµfollows:¡†É²´µµµH4µH5µH6µµData¡É¡°ÉE_U_CONTROLµ¡†µ¡†>µµµ0µµ0µµXµµµU-typeµB-fieldµµµµµµµ1¡†xµµµ0µµ1µµXµµµE-typeµB-fieldµµµµµµµ2¡†²µµµ1µµ0µµXµµµE-typeµB-fieldµµµµµµµ2¡†ìµµµ1µµ1µµ0µµµE-typeµB-fieldµµµµµµµ2¡†&µµµ1µµ1µµ1µµµnoµB-fieldµµµµµµµµµµµ3µ¡†`µ¡†›µµµ(X:µdon'tµcare)µ¡†Õµ¡†µ¡,®²Input´µPorts¡†	²H4¡†Y²Type:²³INT¡†½B-field´µidentityµbit:µH4µbitµofµtheµcurrentµA-fieldµ(bitµ4µofµtheµA-field¡†	header).¡†	lTheµbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†	²E-type,µorµnoµdata.¡†
²H5¡†
j²Type:²³INT¡†
ÎB-fieldµidentityµbit:µH5µbitµofµtheµcurrentµA-fieldµ(bitµ5µofµtheµA-field¡†header).’^bD“I501ileaf_page_string1:86¥	öä¥	öä¡6!²âdect³86¡†É²The´µbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†E-type,µorµnoµdata.¡†ƒ²H6¡†Ø²Type:²³INT¡†GB-fieldµidentityµbit:µH6µbitµofµtheµcurrentµA-fieldµ(bitµ6µofµtheµA-field¡†Žheader).¡†TheµbitsµH4,µH5,µandµH6µcontrolµwhetherµtheµB-fieldµcontainsµU-type,¡†HE-type,µorµnoµdata.¡,²Output´µPorts¡†o²E_U_CONTROL¡†Ä²Type:²³INT¡†3Control´µsignalµthatµisµoutputµforµtheµ(de)multiplexer.µµSetµtoµoneµofµthe¡†zfollowingµvalues:¡†ç²´µµµµµµE_U_CONTROLµ=µ1:µU-typeµB-field¡†!µµµµµµE_U_CONTROLµ=µ2:µE-typeµB-field¡†[µµµµµµE_U_CONTROLµ=µ3:µnoµB-fieldµisµtransmitted¡,²Implementations¡†|²dec_b_ident¡†Ñ²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³dec_b_ident¡,	‘²Classes¡†	ô²DECT’bZD“I501ileaf_page_string1:87¥	öä¥	öä¡#!²âdect³87¡,Û²DECT_correlator¡,W²Correlator´µforµPreambleµDetection¡,ê²Description¡†K²Thisµmodelµsearchesµtheµinputµsignalµforµaµpreambleµspecifiedµinµanµinput¡†’dataset.µDependingµonµtheµparameterµInvertPreamble,µdataµreadµfrom¡†Øtheµinputµdatasetµisµbinaryµinvertedµpriorµtoµcorrelationµorµusedµdirectly.¡†Thus,µaµsingleµinputµdatasetµcanµbeµusedµforµfixedµpartµandµportableµpart¡†ftransmissions.µTheµinputµdatasetµcontainsµoneµentryµforµeachµbit.µThe¡†¬searchµisµrestrictedµtoµaµsearchµwindowµspecifiedµbyµtheµparameters¡†óLengthOfSearchWindow,µLengthOfSlot,µandµSamplesPerBit.¡†9LengthOfSearchWindowµandµLengthOfSlotµspecifyµtheµnumberµofµbitsµin¡†€theµsearchµwindowµandµinµtheµtotalµslotµ(includingµtheµguardµbits),¡†ÆSamplesPerBitµspecifiesµtheµnumberµofµsamplesµperµbitµinµtheµinput¡†signal.¡†~Theµfirstµpreambleµisµsearchedµwithinµtheµfirst¡†è²´µµµLenghtOfSearchWindowµ*µSamplesPerBit¡†S²input´µsamples,µthatµis,µtheµnumberµofµcorrelationsµperformedµequals¡†¾²´µµ(1+LengthOfSearchWindow-LengthOfPreamble)*SamplesPerBit,¡†(²where´µLengthOfPreambleµisµtheµnumberµofµpreambleµbitsµprovidedµinµthe¡†ocorrespondingµinputµdataset.µµAµnewµsearchµisµstarted¡†¶LengthOfSlot*SamplesPerBitµinputµsamplesµafterµtheµstartµofµthe¡†üpreviousµsearch.¡†	mTheµinputµsignalµisµinternallyµsampledµatµaµrateµofµ1µsample/bitµforµall¡†	´SamplesPerBitµstartµpositions.µTheseµsequencesµareµindividually¡†	úcomparedµwithµµtheµpreamble,µandµtheµnumberµofµmatchingµbitsµis¡†
Acounted.µTheµparameterµµThresholdµspecifiesµtheµminimumµnumberµof¡†
‡matchesµforµacceptanceµofµtheµµpreamble.µIfµtheµpreambleµhasµbeen¡†
Îdetectedµatµoneµsamplingµposition,µµcorrelationµcontinuesµforµthe¡†subsequentµSamplesPerBit-1µsamplingµpositions,µthatµisµforµallµpositions’Z´D“I501ileaf_page_string1:88¥	öä¥	öä¡6!²âdect³88¡†É²within´µtheµdurationµofµoneµbit.µAfterµthat,µµcorrelationµisµstopped.µIfµseveral¡†samplingµpositionsµresultµinµanµacceptedµpreamble,µtheµmiddleµpositionµis¡†Vselectedµforµfinalµsampling.µIfµSamplesPerBitµequalsµ2µandµtheµpreamble¡†isµdetectedµinµbothµpositions,µµtheµpositionµwithµtheµminimumµnumberµof¡†ãdataµtransitionsµ(comparedµtoµtheµprecedingµsample)µisµselected.µThe¡†*inputµsignalµisµthenµsampledµatµtheµselectedµlocation,µand¡†qLengthOfDFieldµdataµitemsµareµwrittenµtoµtheµoutputµportµDataOut.¡†ãCorrelationµisµstoppedµlatestµatµtheµendµofµtheµsearchµwindow.µIfµthe¡†*preambleµisµdetectedµduringµtheµlastµSamplesPerBit-1µsamplesµofµthe¡†qsearchµwindow,µtheµsearchµisµextendedµsuchµthatµoneµbitµperiodµfollowing¡†·theµfirstµdetectionµisµcoveredµtoµallowµsymbolµtimingµsynchronization.µIf¡†þtheµpreambleµhasµnotµbeenµfound,µnoµdataµisµwrittenµtoµtheµoutputµport¡†DDataOut,µandµaµ1µisµwrittenµtoµtheµoutputµportµStatus;µotherwiseµaµ0µis¡†‹writtenµtoµthisµoutputµport.¡,M²Parameters¡†°²SamplesPerBit¡†²Type:²³INT¡†sNumberµofµinputµsamplesµperµbit.¡†æ²Threshold¡†:²Type:²³INT¡†©Thresholdµforµacceptanceµofµpreambleµdetection.¡†	²LengthOfDField¡†	p²Type:²³INT¡†	ßNumberµofµbitsµinµtheµD-field.¡†
R²LengthOfSlot¡†
¦²Type:²³INT¡†Totalµnumberµofµbitsµinµtheµslotµ(includingµguardµbits).’´AD“I501ileaf_page_string1:89¥	öä¥	öä¡#!²âdect³89¡†É²LengthOfSearchWindow¡†²Type:²³INT¡†|Number´µofµbitsµinµtheµsearchµwindow.¡†ä²InvertPreamble¡†3²Type:²³INT¡†—Specifiesµifµtheµpreambleµreadµfromµtheµinputµdatasetµisµinvertedµpriorµto¡†Ýcorrelation.¡†?²´µµµµµInvertPreambleµ=µ1:µpreambleµisµinverted¡†yµµµµµInvertPreambleµ=µ0:µpreambleµisµusedµunchanged¡,²Input´µPorts¡†r²Input¡†Â²Type:²³INT¡†%Integer´µinputµsignalµconsistingµofµzerosµandµones.¡,É²Output´µPorts¡†$²DataOut¡†t²Type:²³INT¡†×Integer´µoutputµsignal.µµOnlyµtheµdataµpartµofµtheµburstµ(LengthOfDField¡†dataµitemsµfollowingµaµdetectedµpreamble)µareµoutput.¡†…²Status¡†Õ²Type:²³INT¡†	8Integerµoutputµsignalµindicatingµwhetherµaµpreambleµhasµbeenµdetected¡,	Ü²Input´µDatasets¡†
8²PREAMBLE_DESCRIPTION¡†
‡²This´µdatasetµcontainsµtheµpreambleµwhichµisµsearchedµinµtheµinputµsignal.¡†
ÎTheµpreambleµdataµitemsµmustµequalµ0µorµ1.µTheµdataµitemµtransmitted¡†firstµmustµbeµenteredµfirst.’A™D“I501ileaf_page_string1:90¥	öä¥	öä¡6!²âdect³90¡†É²The´µfollowingµdatasetµfileµcontainsµtheµdownlinkµpreambleµ(fixedµpartµµto¡†portableµpart)µcorrespondingµtoµtheµDECTµstandardµ(DraftµprETSµµ300¡†V175-2:µJulyµ1995):¡†Ë$COSSAP_DIR/models/dect/preamble_dl.am.¡†@Noteµthatµtheµuplinkµpreambleµ(portableµpartµtoµfixedµpart)µcanµbe¡†‡obtainedµfromµtheµsameµinputµdatasetµbyµsettingµtheµparameter¡†ÍInvertPreambleµtoµ1.¡†a²Record³#1:²³PREAMBLE_DATA_ITEM³²Type:²³INT¡ÂÃ²PREAMBLE_DATA_ITEM*¡,X²Error´µCodes¡†¼²INVALID_PARAMETER_SamplesPerBit³²Error´µCode:³²1¡†TheµparameterµSamplesPerBitµmustµbeµgreaterµthanµ2.¡†‡²INVALID_PARAMETER_LengthOfDField³²ErrorµCode:³²2¡†ÜTheµparameterµLengthOfDFieldµmustµbeµgreaterµthanµ0.¡†Q²INVALID_PARAMETER_InvertPreamble³²ErrorµCode:³²3¡†¦TheµparameterµInvertPreambleµmustµbeµeitherµ0µorµ1.¡†²INVALID_PREAMBLE_DATA_ITEM³²ErrorµCode:³²4¡†pTheµinputµdatasetµitemsµmustµbeµeitherµ0µorµ1.¡†å²INVALID_INPUT_DATA_ITEM³²ErrorµCode:³²5¡†	:Theµitemsµreadµfromµtheµinputµportµmustµbeµeitherµ0µorµ1.¡†	¯²LICENSE_ERROR³²ErrorµCode:³²6¡†
Theµlicenseµforµthisµmodelµcouldµnotµbeµcheckedµout.¡†
y²INVALID_PARAMETER_LengthOfSlot³²ErrorµCode:³²7¡†
ÎTheµparameterµLengthOfSlotµmustµbeµgreaterµthanµLengthOfDFieldµplus¡†theµlengthµofµtheµpreamble.’™ÕD“I501ileaf_page_string1:91¥	öä¥	öä¡#!²âdect³91¡†É²INVALID_PARAMETER_LengthOfSearchWindow³²Error´µCode:³²8¡†TheµparameterµLengthOfSearchWindowµmustµbeµgreaterµthanµorµequalµto¡†dtheµlengthµofµtheµpreambleµandµlessµthanµLengthOfSlot-LengthOfDField.¡,(²Implementations¡†‹²dect_correlator¡†à²Type:²³SOURCE_CODE³²Language:²³C³²Function:²³M57_114_40_dect_correlator¡, ²Classes¡†²DECT’Õ>D“I501ileaf_page_string1:92¥	öä¥	öä¡6!²âdect³92¡,Û²dect_demod¡,]²FM-demodulator¡,÷²Description¡†[²This´µmodelµapproximatesµanalogµFM-demodulation.µµItµthenµperforms¡†¢successiveµlowpassµfilteringµandµhardµdecision.¡†AnalogµFM-demodulationµgivenµbyµtheµfollowing:¡†‡²´µµµf(t)µ=µI(t)µ*µdQ(t)/dtµ-µQ(t)µ*µdI(t)/dt¡†ö²is´µapproximatedµbyµtheµfollowingµequation:¡†e²´µµµf(k)µ=µImµ{µ(I(k)µ+µjµQ(k))µ*µ(I(k-1)µ-µjµQ(k-1))}µ¡†Ÿµµµµµµ¡†Ùµµµwhereµf()µisµtheµactualµfrequency,µ¡†µµµµµµµµµI()µisµtheµinphaseµcomponent,µandµ¡†NµµµµµµµµµQ()µisµtheµquadratureµcomponentµofµtheµbasebandµinputµsignal.¡†½²The´µparametersµSAMPLING_TIME,µCUTOFF_FREQUENCY,µand¡†FFT_LENGTHµareµµpassedµdirectlyµtoµtheµlowpassµfilterµmodelµILPF.¡†JReferµtoµtheµdescriptionµofµtheµILPFµmodelµinµtheµMOD63µlibraryµfor¡†‘detailsµregardingµtheseµparameters.¡†TheµinputµsignalµIN_THRESHOLDµdefinesµtheµthresholdµforµtheµhard¡†Mdecision.µIfµtheµcurrentµfilterµoutputµisµgreaterµthanµtheµthreshold,µthe¡†“ouputµsignalµOUT_BINARYµequalsµ1;µotherwise,µitµequalsµ0.µThisµsignal¡†ÚisµµreadµatµtheµsameµrateµasµtheµportsµIN_REALµandµIN_IMAG,µandµcan¡†	 beµusedµµtoµcompensateµfrequencyµerrors.¡,	é²Parameters¡†
N²SAMPLING_TIME¡†
£²Type:²³REAL¡†Specifiesµtheµsamplingµtime.’>èD“I501ileaf_page_string1:93¥	öä¥	öä¡#!²âdect³93¡†É²CUTOFF_FREQUENCY¡†"²Type:²³REAL¡†œSpecifies´µtheµcutoffµfrequencyµofµtheµlowpassµfilter.¡†²FFT_LENGTH¡†s²Type:²³INT¡†îSpecifiesµtheµlengthµofµtheµFFTµusedµinµtheµfilteringµprocess.µTheµlength¡†4ofµtheµimpulseµresponseµisµFFT_LENGTH/2µ+µ1.¡,²Input´µPorts¡†€²IN_REAL¡†Ù²Type:²³REAL¡†SInphase´µcomponentµofµdataµinput.¡†Ñ²IN_IMAG¡†*²Type:²³REAL¡†¤Quadratureµcomponentµofµdataµinput.¡†#²IN_THRESHOLD¡†|²Type:²³REAL¡†öThresholdµforµtheµhardµdecision.¡,	×²Output´µPorts¡†
A²OUT_BINARY¡†
š²Type:²³INT¡†Demodulated´µdata,µintegerµsignalµconsistingµofµzerosµandµones.’èñD“I501ileaf_page_string1:94¥	öä¥	öä¡6!²âdect³94¡,Ï²Implementations¡†2²dect_demod¡††²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³dect_demod¡,F²Classes¡†©²DECT¡†þMODEM’ñD“I501ileaf_page_string1:95¥	öä¥	öä¡#!²âdect³95¡,Û²dect_demux_abxz¡,F²Demuliplexes´µtheµReceivedµDataµIntoµtheµA-field,µB-data-field,µX-fieldµand¡,Z-field¡,²Description¡†_²ThisµmodelµdemultiplexesµtheµD-fieldµ(obtainedµatµtheµcorrelatorµoutput)¡†¦intoµtheµfollowingµsubfields:¡†²´µµµA-field:µµµµµµµµµµµµµµµµTheµfirstµ64µbitsµofµaµslot.¡†<µµµB-fieldµ(dataµpart):µµµµB-fieldµexcludingµtheµX-field.¡†wµµµµµµµµµµµµµµµµµµµµµµµµµµµTheµlengthµofµthisµfieldµisµB_FIELD_LENGTHµ-¡†±4¡†ëµµµX-field:µµµµµµµµµµµµµµµµ4µredundancyµbits.¡†%µµµZ-field:µµµµµµµµµµµµµµµµ4µadditionalµredundancyµbitsµ(repeated¡†_X-field);¡†™µµµµµµµµµµµµµµµµµµµµµµµµµµµonlyµpresentµwhenµtheµparameter¡†ÓZ_FIELD_PRESENT¡†µµµµµµµµµµµµµµµµµµµµµµµµµµµequalsµ1.¡†j²NOTE:¡†ÍIf´µnoµZ-fieldµisµpresentµonµtheµdataµinputµ(Z_FIELD_PRESENTµ=µ0),µthe¡†X-fieldµisµwrittenµtoµbothµoutputµportsµOUT_X_FIELDµand¡†ZOUT_Z_FIELD.¡,ñ²Parameters¡†I²B_FIELD_LENGTH¡†–²Type:²³INT¡†õSpecifiesµtheµnumberµofµdataµitemsµinµtheµB-fieldµ(includingµredundancy¡†	;bits):¡†	˜²´µµµµµµ84+Jµµforµhalfµslot¡†	Òµµµµµµ324µµµforµfullµslot¡†
µµµµµµ804µµµforµdoubleµslot¡†
h²Z_FIELD_PRESENT¡†
¶²Type:²³INT¡†Establishes´µwhetherµtheµZ-fieldµisµpresent.’(D“I501ileaf_page_string1:96¥	öä¥	öä¡6!²âdect³96¡†Ã²´µµµµµµZ_FIELD_PRESENTµ=µ1:µZ-fieldµisµpresent¡†ýµµµµµµZ_FIELD_PRESENTµ=µ0:µZ-fieldµisµnotµpresent¡,£²Input´µPorts¡†²IN_DATA¡†Q²Type:²³INT¡†¸Input´µportµforµD-fieldµdata.¡†"68µ+µB_FIELD_LENGTHµdataµitemsµareµreadµforµeachµslotµifµnoµZ-fieldµis¡†ipresent.¡†Ó72µ+µB_FIELD_LENGTHµµdataµitemsµareµreadµforµeachµslotµifµtheµZ-field¡†isµpresent.¡,Æ²Output´µPorts¡†#²OUT_A_FIELD¡†t²Type:²³INT¡†Û64´µA-fieldµdataµitemsµareµoutputµforµeachµslot.¡†E²OUT_B_FIELD_DATA¡†–²Type:²³INT¡†ýB_FIELD_LENGTH-4µdataµitemsµ(theµB-fieldµexludingµtheµX-field)µare¡†Coutputµforµeachµslot.¡†®²OUT_X_FIELD¡†ÿ²Type:²³INT¡†	e4µX-fieldµdataµitemsµareµoutputµforµeachµslot.¡†	Ð²OUT_Z_FIELD¡†
!²Type:²³INT¡†
‡4µdataµitemsµareµoutputµforµeachµslot.µIfµaµZ-fieldµisµpresentµinµtheµinput¡†
Îdataµ(Z_FIELD_PRESENTµ=µ1),µitµisµwrittenµtoµthisµoutputµport.¡†Otherwise,µtheµreceivedµX-fieldµisµwrittenµtoµthisµport.’(ñD“I501ileaf_page_string1:97¥	öä¥	öä¡#!²âdect³97¡,Ï²Implementations¡†2²dect_demux_abxz¡††²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³dect_demux_abxz¡,F²Classes¡†©²DECT’ñ¦D“I501ileaf_page_string1:98¥	öä¥	öä¡6!²âdect³98¡,Û²DECT_MODULATOR¡,R²GFSK-modulator´µCorrespondingµtoµDECT¡,Ý²Description¡†<²ThisµmodelµperformsµGFSKµ(GaussianµFrequencyµShiftµKeying)¡†ƒmodulationµasµspecifiedµinµtheµDECTµstandard.¡†ïTheµmodulationµindexµisµdefinedµbyµtheµparameter¡†6MODULATION_INDEX.¡†¢Theµoutputµrateµisµdefinedµbyµtheµparameter¡†éNUM_SAMPLES_PER_SYMBOL.¡†VSymbolµtimingµcanµbeµsetµbyµshiftingµtheµinputµsignalµusingµthe¡†œparameterµSAMPLING_OFFSET_PART_OF_T.µµTheµoutputµsignalµcan¡†ãbeµshiftedµµbyµaµspecifiedµamountµinµtheµrangeµ[-0.5µTs,µ0.5µTs],µwhere¡†)Tsµisµtheµµsymbolµperiod.¡,Û²Parameters¡†9²MODULATION_INDEX¡†‹²Type:²³REAL¡†óModulationµindexµforµGFSK.¡†`²NUM_SAMPLES_PER_SYMBOL¡†²²Type:²³INT¡†	Numberµofµoutputµsamplesµperµinputµsymbol.¡†	‡²SAMPLING_OFFSET_PART_OF_T¡†	Ø²Type:²³REAL¡†
AEstablishesµtheµtimingµoffsetµofµtheµoutputµsignalµnormalizedµtoµthe¡†
‡symbolµperiod.µµThisµparameterµmustµbeµsetµtoµaµvalueµinµtheµrangeµ-0.5¡†
Îtoµ0.5.µµThisµvalueµisµthenµquantizedµinternallyµtoµtheµnearestµinteger¡†multipleµofµTs/NUM_SAMPLES_PER_SYMBOL.’¦LD“I501ileaf_page_string1:99¥	öä¥	öä¡#!²âdect³99¡†É²For´µexample,µifµNUM_SAMPLES_PER_SYMBOLµ=µ4,µtheµvalue¡†specifiedµforµSAMPLING_OFFSET_PART_OF_Tµisµquantizedµtoµthe¡†Vclosestµofµoneµofµtheµfollowingµvalues:¡†Ä²´µµµµµµ-1/2,µµ-1/4,µµ0,µµ1/4,µµ1/2¡,„²Input´µPorts¡†è²MODULATING_BITS¡†=²Type:²³INT¡†­Integer´µinputµsignal.µµTheµinputµisµreadµatµaµrateµofµ1/Ts,µwhereµTsµµisµthe¡†ósymbolµperiod.¡,¹²Output´µPorts¡†²MODULATOR_REAL¡†r²Type:²³REAL¡†âReal´µpartµofµtheµcomplexµoutputµsignal.¡†W²MODULATOR_IMAG¡†«²Type:²³REAL¡†Imaginaryµpartµofµtheµcomplexµoutputµsignal.¡,â²Implementations¡†	E²dect_modulator¡†	š²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³dect_modulator¡,
\²Classes¡†
À²DECT¡†MODEM’L^D“I501ileaf_page_string1:100¥	öä¥	öä¡6!²âdect³100¡,Û²dect_scrambler¡,V²Scrambler´µCorrespondingµtoµDECTµ6.0¡,ç²Description¡†H²Thisµhierarchicalµmodelµestablishesµaµsynchronous¡†Žscrambler/descramblerµcorrespondingµtoµtheµDECTµ6.0µstandard.¡†þAµfive-stageµshiftµregisterµisµusedµtoµgenerateµaµpseudoµrandom¡†Esequence.µThisµsequenceµthenµpassesµthroughµanµinversionµmechanism¡†‹(seeµbelow).µµµTheµoriginalµdataµisµlogicallyµXOR'edµwithµtheµoutputµofµthis¡†Òmechanism.¡†BTheµinversionµmechanismµhasµtwoµmodes.µTheµshiftµregisterµoutput¡†ˆpassesµthroughµnon-invertedµorµinverted.µTheµinversionµmechanism¡†Ïtogglesµfromµoneµmodeµintoµtheµotherµmodeµwhenµtheµshiftµregister¡†switchesµtoµtheµstateµfollowingµtheµallµoneµstate.µTheµmodeµisµpresetµto¡†\invertµtheµfirstµoutputµofµtheµshiftµregister.¡†Æ²´µµµµµµµµµµµµµ-------¡†µµµµµµµµµµµµµ|µµµµµ|<--------------------------------------¡†:µµµµ---------|µXORµ|µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ|¡†tµµµµ|µµµµµµµµ|µµµµµ|<-----µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ|¡†®µµµµ|µµµµµµµµ-------µµµµµ|µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ|¡†èµµµµ|µµµµµµµµµµµµµµµµµµµµ|µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ|¡†#µµµµ|µµµ------µµµµ------µ|µµ------µµµµ------µµµµ------µµµµ|¡†]µµµµ|µµµ|µµµµ|µµµµ|µµµµ|µ|µµ|µµµµ|µµµµ|µµµµ|µµµµ|µµµµ|µµµµ|¡†—µµµµ--->|µQ0µ|--->|µQ1µ|--->|µQ2µ|--->|µQ3µ|--->|µQ4µ|----|¡†Ñµµµµµµµµ|µµµµ|µµµµ|µµµµ|µµµµ|µµµµ|µµµµ|µµµµ|µµµµ|µµµµ|µµµµ|¡†	µµµµµµµµ------µµµµ------µµµµ------µµµµ------µµµµ------µµµµ|¡†	Eµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ|¡†	€µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµV¡†	ºµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ-------------¡†	ôµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ|µINVERSIONµ|¡†
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hµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ-------------¡†
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Üµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ|¡†µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ|µµµ-------’^ËD“I501ileaf_page_string1:101¥	öä¥	öä¡	!²âdect³101¡†Ã²´µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ--->|µµµµµ|¡†ýDATA_OUT¡†7µµµµDATA_INµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ|µXOR¡†q|-------->¡†«µµµµ--------------------------------------------------------->|µµµµµ|¡†æµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµ-------µ¡† µ¡†€²Eight´µdifferentµscramblingµsequencesµexist.µAµscramblingµsequenceµis¡†ÇselectedµaccordingµtoµtheµcurrentµTDMAµframeµnumberµwithinµthe¡†multi-frameµstucture.µµTheµTDMAµframeµnumberµisµusedµtoµloadµtheµshift¡†Tregisterµwithµ1µofµ8µdifferentµinitialµstates.µForµeachµframe,µQ3µandµQ4¡†šareµinitiallyµsetµtoµ1.µTheµinitialµstatesµofµQ2,µQ1,µandµQ0µareµthreeµµleast¡†ásignificantµbitsµ(LSBs)µobtainedµbyµinterpretingµtheµTDMAµframeµµnumber¡†(asµaµbinaryµnumberµwhereµQ0µcorrespondsµtoµtheµLSB.¡†ŽIfµaµzeroµappearsµonµtheµinputµLOAD_N,µtheµcurrentµframeµnumberµis¡†ÕreadµfromµtheµinputµFRAME_NUMBER,µandµtheµshiftµregisterµisµloaded¡†withµtheµcorrespondingµinitialµstate.µAdditionally,µtheµinversion¡†bmechanismµisµpresetµtoµinvertµtheµshiftµregisterµoutput.¡,²Input´µPorts¡†^²DATA_IN¡†­²Type:²³INT¡†Data´µtoµbeµscrambledµorµdescrambled.¡†w²LOAD_N¡†Æ²Type:²³INT¡†	(Activeµlowµloadµinput.µTheµshiftµregisterµusedµtoµgenerateµtheµscrambling¡†	osequenceµisµ(re)loadedµwithµtheµinitialµstateµcorrespondingµtoµtheµcurrent¡†	µframeµnumberµifµaµzeroµappearsµonµthisµport.¡†
²FRAME_NUMBER¡†
k²Type:²³INT¡†
ÎTheµcurrentµframeµnumber.µThisµinputµportµisµevaluatedµonlyµifµtheµinput¡†signalµLOAD_Nµgoesµlowµ(µ0µ).µOtherwise,µdataµprovidedµonµthisµportµis’ËJD“I501ileaf_page_string1:102¥	öä¥	öä¡6!²âdect³102¡†É²ignored.´µTheµcurrentµframeµnumberµisµusedµtoµestablishµtheµinitialµstateµof¡†theµshiftµregister.¡,Ô²Output´µPorts¡†7²DATA_OUT¡†‹²Type:²³INT¡†ûScrambled´µorµdescrambledµdata.¡,¿²Error´µCodes¡†"²LICENSE_ERROR³²Error´µCode:³²1¡†wTheµlicenseµforµthisµmodelµcouldµnotµbeµcheckedµout.¡,;²Implementations¡†ž²dect_scrambler¡†ò²Type:²³SOURCE_CODE³²Language:²³C³²Function:²³M57_114_40_dect_scrambler¡,²²Classes¡†²DECT’J/D“I501ileaf_page_string1:103¥	öä¥	öä¡	!²âdect³103¡,Û²demux_a_field¡,Z²Performs´µCRC-checkµandµDemultiplexesµtheµDECTµA-field¡,ð²Description¡†S²ThisµmodelµreadsµtheµA-fieldµandµperformsµCRC-decoding.µTheµnumber¡†šofµerrorsµperµA-fieldµtoµbeµcorrectedµbyµtheµdecoderµisµspecifiedµbyµthe¡†àparameterµN_CORRECT_CRC_A.µNoµmoreµthanµ2µerrorsµperµA-field¡†'canµbeµcorrected.¡†šIfµN_CORRECT_CRC_Aµequalsµ0,µonlyµerrorµdetectionµisµperformed.µIf¡†átheµµreceivedµA-fieldµhadµnoµerrors,µorµallµerrorsµcouldµbeµµcorrected,µaµ0¡†'isµwrittenµtoµtheµoutputµportµCRC_ERROR.µInµcaseµofµµnon-correctable¡†n(orµnon-corrected)µerrors,µaµ1µisµwrittenµtoµthisµport.¡†áTheµdecodedµdataµisµthenµdemultiplexedµintoµtheµ8µbitsµofµtheµA-field¡†(headerµ(H-field)µandµtheµ40µtailµbitsµ(T-Field).µOneµoutputµportµis¡†nprovidedµforµeachµµheaderµbit.µTheµtailµbitsµareµprovidedµseriallyµatµa¡†µsingleµport.¡,x²Parameters¡†Û²N_CORRECT_CRC_A¡†/²Type:²³INT¡†žSpecifiesµtheµnumberµofµerrorsµperµA-fieldµtoµbeµcorrectedµbyµthe¡†åCRC-decoder.µNoµmoreµthanµ2µerrorsµperµA-fieldµcanµbeµcorrected.µIf¡†	+N_CORRECT_CRC_Aµequalsµ0,µonlyµerrorµdetectionµisµperformed.¡,	î²Input´µPorts¡†
Q²A_FIELD¡†
¥²Type:²³INT¡†64´µA-fieldµdataµitemsµareµreadµforµeachµslot.’/zD“I501ileaf_page_string1:104¥	öä¥	öä¡6!²âdect³104¡,Ï²Output´µPorts¡†.²H0¡†²Type:²³INT¡†ëBit´µ0µofµtheµH-field.µOneµdataµitemµisµwrittenµforµeachµslot.¡†Y²H1¡†«²Type:²³INT¡†Bitµ1µofµtheµH-field.µOneµdataµitemµisµwrittenµforµeachµslot.¡†ƒ²H2¡†Ö²Type:²³INT¡†@Bitµ2µofµtheµH-field.µOneµdataµitemµisµwrittenµforµeachµslot.¡†®²H3¡†²Type:²³INT¡†jBitµ3µofµtheµH-field.µOneµdataµitemµisµwrittenµforµeachµslot.¡†Ø²H4¡†+²Type:²³INT¡†•Bitµ4µofµtheµH-field.µOneµdataµitemµisµwrittenµforµeachµslot.¡†²H5¡†U²Type:²³INT¡†¿Bitµ5µofµtheµH-field.µOneµdataµitemµisµwrittenµforµeachµslot.¡†	.²H6¡†	€²Type:²³INT¡†	êBitµ6µofµtheµH-field.µOneµdataµitemµisµwrittenµforµeachµslot.¡†
X²H7¡†
ª²Type:²³INT¡†Bitµ7µofµtheµH-field.µOneµdataµitemµisµwrittenµforµeachµslot.’zD“I501ileaf_page_string1:105¥	öä¥	öä¡	!²âdect³105¡†É²T¡†²Type:²³INT¡†T-field.´µ40µdataµitemsµareµwrittenµforµeachµslot.¡†²CRC_ERROR¡†U²Type:²³INT¡†ÄIfµtheµA-fieldµisµreceivedµwithµnoµerrors,µorµallµerrorsµcouldµbeµµcorrected,¡†aµ0µisµwrittenµtoµthisµport.µInµtheµcaseµofµnon-correctableµµor¡†Rnon-correctedµerrors,µaµ1µisµwrittenµtoµthisµport.¡†ÅOneµdataµitemµisµwrittenµtoµthisµportµforµeachµA-fieldµprocessed.¡,‰²Implementations¡†ì²demux_a_field¡†A²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³demux_a_field¡,²Classes¡†d²DECT’oD“I501ileaf_page_string1:106¥	öä¥	öä¡6!²âdect³106¡,Û²demux_b_field_08j¡,q²Performs´µXCRC-Checking,µDescrambling,µCRC-Decodingµ(ifµapplicable)¡,·andµDemultiplexesµtheµDataµPartµofµB08j-FieldsµintoµtheµLogicalµChannels¡,m²Description¡†Ý²Forµeachµslot,µthisµmodelµreadsµoneµdataµitemµfromµtheµinputµport¡†$IGNORE_SLOTµtoµselectµwhetherµtheµcurrentµslotµisµignored¡†j(IGNORE_SLOTµ=µ1)µorµprocessedµnormallyµ(IGNORE_SLOTµ=µ0).µThe¡†±currentµslotµhasµtoµbeµignoredµifµtheµB-fieldµidentityµbitsµmayµbeµcorrupted¡†÷whatµisµindicatedµbyµtheµresultµofµtheµA-fieldµCRC-check.µIf¡†>IGNORE_SLOTµequalsµ1,µtheµappropriateµnumberµofµdataµitemsµisµread¡†…fromµeachµinputµport,µbutµnoµdataµisµwrittenµtoµtheµoutputµports.¡†Duringµnormalµoperation,µthisµmodelsµreadsµtheµB-fieldµdataµpartµ(B-field¡†QexcludingµX-field)µfromµtheµinputµportµB_FIELD_DATAµandµtheµX-field¡†˜fromµµX_FIELD.µTheµredundancyµbitsµfromµtheµX-fieldµareµcheckedµand¡†ÞtheµresultµisµµwrittenµtoµtheµportµXCRC_ERROR.µIfµanµerrorµisµdetected,µa¡†%1µisµoutput;µotherwiseµaµ0µisµoutput.¡†«Theµblocksµofµ80+Jµdataµbitsµareµthenµdescrambledµsynchronouslyµand¡†òdemultiplexedµintoµU-typeµandµE-typeµfieldsµaccordingµtoµtheµB-field¡†8identityµbitsµH4,µH5,µandµH6.µTheseµbitsµareµlocatedµinµtheµA-fieldµheader¡†andµprovidedµonµtheµinputµportsµH4,µH5,µandµH6.µDecodingµofµtheseµbits¡†Åisµdoneµasµfollows:¡†	E²´µµµH4µH5µH6µ¡†	€µ¡†	ºµµµ0µµ0µµXµµµU-typeµB-field¡†	ôµµµ0µµ1µµXµµµE-typeµB-field¡†
.µµµ1µµ0µµXµµµE-typeµB-field¡†
hµµµ1µµ1µµ0µµµE-typeµB-field¡†
¢µµµ1µµ1µµ1µµµnoµB-fieldµ¡†
Üµ¡†µµµ(X:µdon'tµcare)’oêD“I501ileaf_page_string1:107¥	öä¥	öä¡	!²âdect³107¡†É²If´µtheµB-fieldµidentityµbitsµindicateµthatµnoµB-fieldµisµpresent,µdataµread¡†fromµtheµinputµportsµB_FIELD_DATAµandµX_FIELDµareµignoredµforµthis¡†Vslot,µandµnoµdataµisµwrittenµtoµtheµoutputµports.¡†ÉForµE-typeµB-fields,µtheµdataµreadµfromµB_FIELD_DATAµis¡†CRC-decodedµafterµtheµfillµsequenceµ(Jµbits)µhasµbeenµremovedµandµthe¡†Vdataµcontentµµ(64µbits)µisµwrittenµtoµtheµoutputµport¡†œM_CF_GF_CHANNELS.¡†TheµCRCµdecoderµisµcontrolledµbyµtheµparameter¡†UN_CORRECT_CRC_BE.µµThisµparameterµspecifiesµtheµnumberµofµerrors¡†œperµcodeµwordµtoµbeµcorrected.µNoµmoreµthanµ2µerrorsµcanµbeµcorrected¡†âforµeachµcodeµword.µIfµµN_CORRECT_CRC_BEµequalsµ0,µonlyµerror¡†)detectionµisµperformed.¡†›ForµeachµE-typeµhalf-slotµB-field,µoneµstatusµbitµisµwrittenµtoµtheµoutput¡†âportµE_SUBFIELD_CRC_ERROR.µThisµstatusµbitµisµsetµtoµ0µifµnoµerrors¡†(wereµdetectedµinµtheµreceivedµcodeµword,µorµifµallµerrorsµwereµµcorrected;¡†ootherwise,µitµisµsetµtoµ1.¡†áForµU-typeµB-fields,µoneµdataµitemµreadµfromµtheµinputµportµI_PROTECT¡†(isµusedµtoµselectµwhetherµtheµreceivedµdataµisµprotectedµ(I_PROTECT¡†nequalsµ1)µorµnon-protectedµ(I_PROTECTµequalsµ0).µIfµnon-protected¡†µdataµisµreceived,µitµisµoutputµdirectlyµtoµoutputµportµIN_CHANNEL,µ80µ+µJ¡†ûbitsµperµhalfµslot.µIfµprotectedµdataµisµreceived,µtheµfillµsequenceµofµJµbits¡†Bisµremovedµandµtheµremainingµ80µbitsµareµCRC-decodedµinµaµsimilarµway¡†ˆasµforµE-typeµdata.¡†ûTheµparameterµN_CORRECT_CRC_BUµspecifiesµtheµnumberµofµerrors¡†	Aperµcodeµwordµtoµbeµcorrected.µµNoµmoreµthanµ2µerrorsµcanµbeµcorrected¡†	ˆforµeachµcodeµword.µµIfµN_CORRECT_CRC_BUµequalsµ0,µonlyµerror¡†	Îdetectionµisµperformed.¡†
AForµeachµprotectedµU-typeµhalf-slotµB-field,µoneµstatusµbitµisµwrittenµto¡†
‡theµoutputµportµU_SUBFIELD_CRC_ERROR.µThisµstatusµequalsµ0µifµno¡†
Îerrorsµwereµdetectedµinµtheµreceivedµcodeµwordµorµifµallµerrorsµwere¡†corrected;µotherwise,µitµisµsetµtoµ1.’ê@D“I501ileaf_page_string1:108¥	öä¥	öä¡6!²âdect³108¡,Ï²Parameters¡†&²J¡†s²Type:²³INT¡†ÑSpecifies´µtheµlengthµofµtheµhalf-slotµB-field.µOneµhalf-slotµB-field¡†containsµ84µ+µJµbits.¡†y²N_CORRECT_CRC_BU¡†Æ²Type:²³INT¡†$SpecifiesµtheµnumberµofµerrorsµperµprotectedµU-typeµB08j-fieldµtoµbe¡†kcorrectedµbyµtheµCRC-decoder.µµNoµmoreµthanµ2µerrorsµperµU-type¡†±B08j-fieldµcanµbeµcorrected.¡†IfµN_CORRECT_CRC_BUµequalsµ0,µonlyµerrorµdetectionµisµapplied.¡†t²N_CORRECT_CRC_BE¡†Â²Type:²³INT¡†SpecifiesµtheµnumberµofµerrorsµperµE-typeµB08j-fieldµtoµbeµcorrectedµby¡†ftheµCRC-decoder.µµNoµmoreµthanµ2µerrorsµperµE-typeµµB08j-fieldµcanµbe¡†¬corrected.¡†IfµN_CORRECT_CRC_BEµequalsµ0,µonlyµerrorµdetectionµisµapplied.¡,£²Input´µPorts¡†ú²I_PROTECT¡†G²Type:²³INT¡†¥Indicates´µwhetherµtheµreceivedµinformationµdataµisµprotectedµorµnot.µOne¡†ëdataµitemµisµreadµfromµthisµportµforµeachµU-typeµhalf-slotµB-field.µData¡†	2readµfromµthisµportµisµignoredµifµtheµB-fieldµcontainsµE-typeµorµnoµdata.¡†	²´µµµµµµI_PROTECTµ=µ1:µprotectedµdataµisµreceived¡†	ÈµµµµµµI_PROTECTµ=µ0:µnon-protectedµdataµisµreceived¡†
#²B_FIELD_DATA¡†
p²Type:²³INT¡†
Î80´µ+µJµdataµitemsµ(B-fieldµexcludingµtheµX-field)µthatµareµreadµforµevery¡†halfµslot.’@ÌD“I501ileaf_page_string1:109¥	öä¥	öä¡	!²âdect³109¡†É²X_FIELD¡†²Type:²³INT¡†w4´µX-fieldµdataµitemsµthatµareµreadµforµeveryµhalfµslot.¡†Ü²LOAD_SCRAMBLER_N¡†*²Type:²³INT¡†ŠSignalµcontrollingµtheµdescrambler.µµ80µ+µJµdataµitemsµareµreadµfromµthis¡†Ñportµforµeveryµhalfµslot.¡†5IfµLOAD_SCRAMBLERµ=µ0,µtheµshiftµregisterµusedµtoµgenerateµthe¡†{scramblingµµsequenceµisµ(re)loadedµwithµtheµinitialµstateµcorrespondingµto¡†Âtheµcurrentµµframeµnumber.¡†&²FRAME_NO¡†u²Type:²³INT¡†ÕThisµsignalµcontrolsµtheµdescramblerµandµspecifiesµtheµcurrentµframe¡†number.µµ80µ+µJµdataµitemsµareµreadµfromµthisµportµforµeveryµhalfµslot.¡†Theµcurrentµframeµnumberµisµusedµtoµestablishµtheµinitialµstateµofµtheµµshift¡†Æregisterµthatµgeneratesµtheµscramblingµsequence.¡†*FRAME_NOµisµevaluatedµonlyµifµtheµinputµsignalµLOAD_Nµgoesµlowµ(µ0µ).¡†qOtherwise,µdataµprovidedµonµthisµportµisµignored.¡†Õ²H4¡†#²Type:²³INT¡†ƒB-fieldµidentityµbit.µBitµH4µofµtheµcurrentµA-fieldµ(bitµ4µofµtheµA-field¡†Êheader).µµTheµB-fieldµidentityµbitsµ(H4,µH5,µandµH6)µdetermineµwhether¡†	theµµB-fieldµcontainsµU-type,µE-type,µorµnoµdata.¡†	u1µdataµitemµisµreadµforµeveryµhalfµslot.¡†	Ù²H5¡†
'²Type:²³INT¡†
‡B-fieldµidentityµbit.µBitµH5µofµtheµcurrentµA-fieldµ(bitµ5µofµtheµA-field¡†
Îheader).µµTheµB-fieldµidentityµbitsµ(H4,µH5,µandµH6)µdetermineµwhether¡†theµµB-fieldµcontainsµU-type,µE-type,µorµnoµdata.’ÌžD“I501ileaf_page_string1:110¥	öä¥	öä¡6!²âdect³110¡†É²1´µdataµitemµisµreadµforµeveryµhalfµslot.¡†5²H6¡†‡²Type:²³INT¡†ïB-fieldµidentityµbit.µBitµH6µofµtheµcurrentµA-fieldµ(bitµ6µofµtheµA-field¡†5header).µµTheµB-fieldµidentityµbitsµ(H4,µH5,µandµH6)µdetermineµwhether¡†|theµµB-fieldµcontainsµU-type,µE-type,µorµnoµdata.¡†è1µdataµitemµisµreadµforµeveryµhalfµslot.¡†T²IGNORE_SLOT¡†¦²Type:²³INT¡†IndicatesµwhetherµtheµcurrentµB-fieldµisµignoredµorµnot.¡†zIGNORE_SLOTµ=µ1:µtheµcurrentµslotµisµignoredµIGNORE_SLOTµ=µ0:µthe¡†Ácurrentµslotµisµprocessedµnormally¡†-1µdataµitemµisµreadµforµeveryµhalfµslot.¡,Ý²Output´µPorts¡†<²IN_CHANNEL¡†²Type:²³INT¡†õOutput´µportµforµnon-protectedµinformationµdata.µµ80µ+µJµdataµitemsµare¡†<writtenµforµeachµnon-protectedµU-typeµhalf-slotµB-field.¡†¨²IP_CHANNEL¡†ù²Type:²³INT¡†	bOutputµportµforµprotectedµinformationµdata.µµ64µdataµitemsµareµwrittenµfor¡†	¨eachµprotectedµU-typeµhalf-slotµB-field.¡†
²M_CF_GF_CHANNELS¡†
f²Type:²³INT¡†
ÎOutputµportµforµE-typeµdata.µµ64µdataµitemsµareµwrittenµforµeachµE-type¡†half-slotµB-field.’ž>D“I501ileaf_page_string1:111¥	öä¥	öä¡	!²âdect³111¡†É²XCRC_ERROR¡†²Type:²³INT¡†ŽResult´µofµtheµX-fieldµredundancyµbitµcheck.¡†û²´µµµµµµµXCRC_ERRORµ=µ1:µµerrorµdetected¡†6µµµµµµµXCRC_ERRORµ=µ0:µµnoµerrorµdetected¡†£²1´µdataµitemµisµwrittenµforµeveryµhalfµslot.¡†²U_SUBFIELD_CRC_ERROR¡†l²Type:²³INT¡†ÜU-typeµhalf-slotµB-fieldµstatusµbit.¡†PIfµaµU-typeµB-fieldµisµreceivedµwithµnoµerrors,µorµallµerrorsµcouldµbe¡†—corrected,µaµ0µisµoutput;µotherwise,µaµ1µisµoutput.¡†OneµdataµitemµisµwrittenµtoµthisµportµforµeachµU-typeµB-fieldµprocessed.¡†²E_SUBFIELD_CRC_ERROR¡†Ó²Type:²³INT¡†CE-typeµhalf-slotµB-fieldµstatusµbit.¡†·IfµanµE-typeµB-fieldµisµreceivedµwithµnoµerrors,µorµallµerrorsµcouldµbe¡†þcorrected,µaµ0µisµoutput;µotherwise,µaµ1µisµoutput.¡†rOneµdataµitemµisµwrittenµtoµthisµportµforµeachµE-typeµB-fieldµprocessed.¡,	7²Implementations¡†	›²demux_b_field_08j¡†	ð²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³demux_b_field_08j¡,
±²Classes¡†²DECT’>|D“I501ileaf_page_string1:112¥	öä¥	öä¡6!²âdect³112¡,Û²demux_b_field_32¡,[²Performs´µXCRC-Checking,µDescrambling,µCRC-Decodingµ(ifµapplicable)¡,¢andµDemultiplexesµtheµDataµPartµofµB32-FieldsµintoµtheµLogicalµChannels¡,:²Description¡†ž²Forµeachµslot,µthisµmodelµreadsµoneµdataµitemµfromµtheµinputµport¡†åIGNORE_SLOTµtoµselectµwhetherµtheµcurrentµslotµisµignored¡†+(IGNORE_SLOTµ=µ1)µµorµprocessedµnormallyµ(IGNORE_SLOTµ=µ0).µThe¡†rcurrentµslotµhasµtoµbeµignoredµifµtheµB-fieldµidentityµbitsµmayµbeµcorrupted¡†¸whatµisµindicatedµbyµtheµresultµofµtheµA-fieldµCRC-check.µµIf¡†ÿIGNORE_SLOTµequalsµ1,µtheµappropriateµnumberµofµdataµitemsµisµread¡†Ffromµeachµinputµport,µbutµnoµdataµisµwrittenµtoµtheµoutputµports.¡†ºDuringµnormalµoperation,µthisµmodelµreadsµtheµB-fieldµdataµpartµ(B-field¡†excludingµX-field)µfromµtheµinputµportµB_FIELD_DATAµandµtheµX-field¡†GfromµµX_FIELD.µTheµredundancyµbitsµfromµtheµX-fieldµareµcheckedµand¡†ŽtheµresultµisµµwrittenµtoµtheµportµXCRC_ERROR.µIfµanµerrorµisµdetected,µa¡†Ô1µisµoutput;µµotherwiseµaµ0µisµoutput.¡†ITheµblocksµofµ320µdataµbitsµareµthenµdescrambledµsynchronouslyµand¡†demultiplexedµintoµU-typeµandµE-typeµfieldsµaccordingµtoµtheµB-field¡†ÖidentityµbitsµH4,µH5,µandµH6.µTheseµbitsµareµlocatedµinµtheµA-fieldµheader¡†andµprovidedµonµtheµinputµportsµH4,µH5,µandµH6.µDecodingµofµtheseµbits¡†cisµdoneµasµfollows:¡†Ñ²´µµµH4µH5µH6µ¡†	µ¡†	Eµµµ0µµ0µµXµµµU-typeµB-field¡†	€µµµ0µµ1µµXµµµE-typeµB-field¡†	ºµµµ1µµ0µµXµµµE-typeµB-field¡†	ôµµµ1µµ1µµ0µµµE-typeµB-field¡†
.µµµ1µµ1µµ1µµµnoµB-fieldµ¡†
hµ¡†
¢µµµ(X:µdon'tµcare)µ¡†
Üµµ¡†µ’|	D“I501ileaf_page_string1:113¥	öä¥	öä¡	!²âdect³113¡†É²If´µtheµB-fieldµidentityµbitsµindicateµthatµnoµB-fieldµisµpresent,µdataµread¡†fromµtheµinputµportsµB_FIELD_DATA,µX_FIELD,µandµI_PROTECTµare¡†Vignoredµforµthisµslot,µandµnoµdataµisµwrittenµtoµtheµoutputµports.¡†ÔForµE-typeµB-fields,µtheµdataµreadµfromµB_FIELD_DATAµis¡†CRC-decodedµinµ4µsubfieldsµofµ80µbitsµperµfullµslotµandµtheµdataµcontent¡†a(4µ*µ64µbits)µisµwrittenµtoµtheµoutputµportµM_CF_GF_CHANNELS.¡†ßTheµCRCµdecoderµisµcontrolledµbyµtheµparameter¡†&N_CORRECT_CRC_BE.µThisµparameterµspecifiesµtheµnumberµofµerrors¡†mperµsubfieldµtoµbeµcorrected.µNoµmoreµthanµ2µerrorsµcanµbeµcorrectedµfor¡†³eachµsubfield.µIfµN_CORRECT_CRC_BEµequalsµ0,µonlyµerrorµdetection¡†úisµperformed.¡†xForµeachµE-typeµfull-slotµB-subfield,µoneµstatusµbitµisµwrittenµtoµthe¡†¾outputµportµE_SUBFIELD_CRC_ERROR.µThisµstatusµbitµisµsetµtoµ0µifµno¡†errorsµwereµdetectedµinµtheµreceivedµsubfieldµorµifµallµerrorsµwere¡†Kcorrected;µotherwise,µitµisµsetµtoµ1.¡†ÊForµU-typeµB-fields,µoneµdataµitemµreadµfromµtheµinputµportµI_PROTECT¡†isµusedµtoµselectµwhetherµtheµreceivedµdataµisµprotectedµ(I_PROTECT¡†Wequalsµ1)µorµnon-protectedµ(I_PROTECTµequalsµ0).µIfµnon-protected¡†dataµisµreceived,µitµisµoutputµdirectlyµtoµoutputµportµIN_CHANNEL,µ320¡†äbitsµperµfullµslot.µIfµprotectedµdataµisµreceived,µCRC-decodingµisµdoneµinµa¡†*similarµwayµasµforµE-typeµdata.µµNoteµthatµdataµitemsµreadµfrom¡†qI_PROTECTµareµignoredµifµtheµB-fieldµcontainsµE-typeµorµnoµdata.¡†ïTheµparameterµN_CORRECT_CRC_BUµspecifiesµtheµnumberµofµerrors¡†	6perµsubfieldµtoµbeµcorrected.µµNoµmoreµthanµ2µerrorsµcanµbeµcorrectedµfor¡†	|eachµsubfield.µIfµN_CORRECT_CRC_BUµequalsµ0,µonlyµerrorµdetection¡†	Ãisµperformed.¡†
AForµeachµprotectedµU-typeµfull-slotµB-subfield,µoneµstatusµbitµisµwritten¡†
‡toµtheµoutputµportµU_SUBFIELD_CRC_ERROR.µThisµstatusµequalsµ0µif¡†
Înoµerrorsµwereµdetectedµinµtheµreceivedµcodeµwordµorµifµallµerrorsµwere¡†corrected;µotherwise,µitµisµsetµtoµ1.’	D“I501ileaf_page_string1:114¥	öä¥	öä¡6!²âdect³114¡,Ï²Parameters¡†+²N_CORRECT_CRC_BU¡†|²Type:²³INT¡†âSpecifies´µtheµnumberµofµerrorsµperµprotectedµU-typeµB32-subfieldµtoµbe¡†)correctedµbyµtheµCRC-decoder.µµNoµmoreµthanµ2µerrorsµperµU-type¡†oB32-subfieldµcanµbeµcorrected.¡†ÙIfµN_CORRECT_CRC_BUµequalsµ0,µonlyµerrorµdetectionµisµperformed.¡†C²N_CORRECT_CRC_BE¡†”²Type:²³INT¡†úSpecifiesµtheµnumberµofµerrorsµperµE-typeµB32-subfieldµtoµbeµcorrected¡†@byµtheµCRC-decoder.µµNoµmoreµthanµ2µerrorsµperµE-typeµB32-subfield¡†‡canµbeµcorrected.¡†ñIfµN_CORRECT_CRC_BEµequalsµ0,µonlyµerrorµdetectionµisµperformed.¡,›²Input´µPorts¡†ø²I_PROTECT¡†I²Type:²³INT¡†¯Indicates´µwhetherµtheµreceivedµinformationµdataµisµprotectedµorµnot.µOne¡†õdataµitemµisµreadµfromµthisµportµforµeachµfull-slotµB-field.µDataµreadµfrom¡†<thisµportµisµignoredµifµtheµB-fieldµcontainsµE-typeµorµnoµdata.¡† ²´µµµµµµI_PROTECTµ=µ1:µprotectedµdataµisµreceived¡†ÚµµµµµµI_PROTECTµ=µ0:µnon-protectedµdataµisµreceived¡†	=²B_FIELD_DATA¡†	Ž²Type:²³INT¡†	ô320´µdataµitemsµ(B-fieldµexcludingµtheµX-field)µareµreadµforµeachµfullµslot.¡†
^²X_FIELD¡†
¯²Type:²³INT¡†4µX-fieldµdataµitemsµareµreadµforµeachµfullµslot.’ŒD“I501ileaf_page_string1:115¥	öä¥	öä¡	!²âdect³115¡†É²LOAD_SCRAMBLER_N¡†²Type:²³INT¡†‰Signal´µcontrollingµtheµdescrambler.µ320µdataµitemsµareµreadµfromµthis¡†Ðportµforµeveryµfullµslot.¡†AIfµLOAD_SCRAMBLERµ=µ0,µtheµshiftµregisterµusedµtoµgenerateµthe¡†ˆscramblingµsequenceµisµ(re)loadedµwithµtheµinitialµstateµcorrespondingµto¡†Îtheµcurrentµframeµnumber.¡†?²FRAME_NO¡†“²Type:²³INT¡†Thisµsignalµcontrolsµtheµdescramblerµandµspecifiesµtheµcurrentµframe¡†Fnumber.µµ320µdataµitemsµareµreadµfromµthisµportµforµeveryµfullµslot.¡†·Theµcurrentµframeµnumberµisµusedµtoµestablishµtheµinitialµstateµofµtheµshift¡†þregisterµthatµgeneratesµtheµscramblingµsequence.¡†oFRAME_NOµisµevaluatedµonlyµifµtheµinputµsignalµLOAD_Nµgoesµlowµ(µ0µ).¡†µOtherwise,µdataµprovidedµonµthisµportµisµignored.¡†&²H4¡†z²Type:²³INT¡†çB-fieldµidentityµbit.µBitµH4µofµtheµcurrentµA-fieldµ(bitµ4µofµtheµA-field¡†-header).µµTheµB-fieldµidentityµbitsµ(H4,µH5,µandµH6)µdetermineµwhether¡†ttheµB-fieldµcontainsµU-type,µE-type,µorµnoµdata.¡†å1µdataµitemµisµreadµforµeveryµfullµslot.¡†	V²H5¡†	©²Type:²³INT¡†
B-fieldµidentityµbit.µBitµH5µofµtheµcurrentµA-fieldµ(bitµ5µofµtheµA-field¡†
]header).µµTheµB-fieldµidentityµbitsµ(H4,µH5,µandµH6)µdetermineµwhether¡†
£theµB-fieldµcontainsµU-type,µE-type,µorµnoµdata.¡†1µdataµitemµisµreadµforµeveryµfullµslot.’ŒlD“I501ileaf_page_string1:116¥	öä¥	öä¡6!²âdect³116¡†É²H6¡†²Type:²³INT¡†ŒB-field´µidentityµbit.µBitµH6µofµtheµcurrentµA-fieldµ(bitµ6µofµtheµA-field¡†Óheader).µµTheµB-fieldµidentityµbitsµ(H4,µH5,µandµH6)µdetermineµwhether¡†theµB-fieldµcontainsµU-type,µE-type,µorµnoµdata.¡†Œ1µdataµitemµisµreadµforµeveryµfullµslot.¡†ÿ²IGNORE_SLOT¡†S²Type:²³INT¡†ÂIndicatesµwhetherµtheµcurrentµB-fieldµisµignoredµorµnot.¡†4IGNORE_SLOTµ=µ1:µtheµcurrentµslotµisµignoredµIGNORE_SLOTµ=µ0:µthe¡†{currentµslotµisµprocessedµnormally¡†î1µdataµitemµisµreadµforµeveryµfullµslot.¡,°²Output´µPorts¡†²IN_CHANNEL¡†g²Type:²³INT¡†ÕOutput´µportµforµnon-protectedµinformationµdata.µµ320µdataµitemsµare¡†writtenµforµeachµnon-protectedµU-typeµfull-slotµB-field.¡†²IP_CHANNEL¡†ã²Type:²³INT¡†	ROutputµportµforµprotectedµinformationµdata.µµ256µdataµitemsµareµwrittenµfor¡†	˜eachµprotectedµU-typeµfull-slotµB-field.¡†
²M_CF_GF_CHANNELS¡†
_²Type:²³INT¡†
ÎOutputµportµforµE-typeµdata.µµ256µdataµitemsµareµwrittenµforµeachµE-type¡†full-slotµB-field.’lÐD“I501ileaf_page_string1:117¥	öä¥	öä¡	!²âdect³117¡†É²XCRC_ERROR¡†²Type:²³INT¡†ƒResult´µofµtheµX-fieldµredundancyµbitµcheck.¡†ê²´µµµµµµµXCRC_ERRORµ=µ1:µµerrorµdetected¡†$µµµµµµµXCRC_ERRORµ=µ0:µµnoµerrorµdetected¡†‹²1´µdataµitemµisµwrittenµforµeveryµfullµslot.¡†÷²U_SUBFIELD_CRC_ERROR¡†I²Type:²³INT¡†²U-typeµfull-slotµB-subfieldµstatusµbit.¡†IfµaµU-typeµB-subfieldµisµreceivedµwithµnoµerrors,µorµallµerrorsµcouldµbe¡†ecorrected,µaµ0µisµoutput;µotherwise,µaµ1µisµoutput.¡†ÒOneµdataµitemµisµwrittenµtoµthisµportµforµeachµU-typeµB-subfield¡†processed.µTherefore,µ4µdataµitemsµareµwrittenµforµeachµU-typeµB-field.¡†…²E_SUBFIELD_CRC_ERROR¡†×²Type:²³INT¡†?E-typeµfull-slotµB-subfieldµstatusµbit.¡†¬IfµanµE-typeµB-subfieldµisµreceivedµwithµnoµerrors,µorµallµerrorsµcouldµbe¡†ócorrected,µaµ0µisµoutput;µotherwise,µaµ1µisµoutput.¡†_OneµdataµitemµisµwrittenµtoµthisµportµforµeachµE-typeµB-subfield¡†¦processed.µTherefore,µ4µdataµitemsµareµwrittenµforµeachµE-typeµB-field.¡,	X²Implementations¡†	¶²demux_b_field_32¡†
²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³demux_b_field_32¡,
¶²Classes¡†²DECT’ÐlD“I501ileaf_page_string1:118¥	öä¥	öä¡6!²âdect³118¡,Û²demux_b_field_80¡,q²Performs´µXCRC-Checking,µDescrambling,µCRC-Decodingµ(ifµapplicable)¡,·andµDemultiplexesµtheµDataµPartµofµB80-FieldsµintoµtheµLogicalµChannels¡,m²Description¡†Ý²Forµeachµslot,µthisµmodelµreadsµoneµdataµitemµfromµtheµinputµport¡†$IGNORE_SLOTµtoµselectµwhetherµtheµcurrentµslotµisµignored¡†j(IGNORE_SLOTµ=µ1)µorµprocessedµnormallyµ(IGNORE_SLOTµ=µ0).µThe¡†±currentµslotµhasµtoµbeµignoredµifµtheµB-fieldµidentityµbitsµmayµbeµcorrupted¡†÷whatµisµindicatedµbyµtheµresultµofµtheµA-fieldµCRC-check.µIf¡†>IGNORE_SLOTµequalsµ1,µtheµappropriateµnumberµofµdataµitemsµisµread¡†…fromµeachµinputµport,µbutµnoµdataµisµwrittenµtoµtheµoutputµports.¡†Duringµnormalµoperation,µthisµmodelsµreadsµtheµB-fieldµdataµpartµ(B-field¡†QexcludingµX-field)µfromµtheµinputµportµB_FIELD_DATAµandµtheµX-field¡†˜fromµµX_FIELD.µTheµredundancyµbitsµfromµtheµX-fieldµareµcheckedµand¡†ÞtheµresultµµisµwrittenµtoµtheµportµXCRC_ERROR.µIfµanµerrorµisµdetected,µa¡†%1µisµoutput;µotherwiseµaµ0µisµoutput.¡†«Theµblocksµofµ800µdataµbitsµareµthenµdescrambledµsynchronouslyµand¡†òdemultiplexedµintoµU-typeµandµE-typeµfieldsµaccordingµtoµtheµB-field¡†8identityµbitsµH4,µH5,µandµH6.µTheseµbitsµareµlocatedµinµtheµA-fieldµheader¡†andµprovidedµonµtheµinputµportsµH4,µH5,µandµH6.µDecodingµofµtheseµbits¡†Åisµdoneµasµfollows:¡†	E²´µµµH4µH5µH6µ¡†	€µ¡†	ºµµµ0µµ0µµXµµµU-typeµB-field¡†	ôµµµ0µµ1µµXµµµE-typeµB-field¡†
.µµµ1µµ0µµXµµµE-typeµB-field¡†
hµµµ1µµ1µµ0µµµE-typeµB-field¡†
¢µµµ1µµ1µµ1µµµnoµB-fieldµ¡†
Üµ¡†µµµ(X:µdon'tµcare)’l¨D“I501ileaf_page_string1:119¥	öä¥	öä¡	!²âdect³119¡†É²If´µtheµB-fieldµidentityµbitsµindicateµthatµnoµB-fieldµisµpresent,µdataµread¡†fromµtheµinputµportsµB_FIELD_DATAµandµX_FIELDµareµignoredµforµthis¡†Vslot,µandµnoµdataµisµwrittenµtoµtheµoutputµports.¡†ÔForµE-typeµB-fields,µtheµdataµreadµfromµB_FIELD_DATAµis¡†CRC-decodedµinµ10µsubfieldsµofµ80µbitsµperµdoubleµslotµandµtheµdata¡†acontentµ(10µ*µ64µbits)µisµwrittenµtoµtheµoutputµport¡†¨M_CF_GF_CHANNELS.¡†&TheµCRCµdecoderµisµcontrolledµbyµtheµparameter¡†mN_CORRECT_CRC_BE.µµThisµparameterµspecifiesµtheµnumberµofµerrors¡†³perµsubfieldµtoµbeµcorrected.µNoµmoreµthanµ2µerrorsµcanµbeµcorrectedµfor¡†úeachµsubfield.µIfµN_CORRECT_CRC_BEµequalsµ0,µonlyµerrorµdetection¡†@isµperformed.¡†¾ForµeachµE-typeµdouble-slotµB-subfield,µoneµstatusµbitµisµwrittenµtoµthe¡†outputµportµE_SUBFIELD_CRC_ERROR.µThisµstatusµbitµisµsetµtoµ0µifµno¡†Kerrorsµwereµdetectedµinµtheµreceivedµsubfieldµorµifµallµerrorsµwere¡†’corrected;µotherwise,µitµisµsetµtoµ1.¡†ForµU-typeµB-fields,µoneµdataµitemµreadµfromµtheµinputµportµI_PROTECT¡†Wisµusedµtoµselectµwhetherµtheµreceivedµdataµisµprotectedµ(I_PROTECT¡†equalsµ1)µorµnon-protectedµ(I_PROTECTµequalsµ0).µIfµnon-protected¡†ädataµisµreceived,µitµisµoutputµdirectlyµtoµoutputµportµIN_CHANNEL,µ800¡†*bitsµperµdoubleµslot.µIfµprotectedµdataµisµreceived,µCRC-decodingµisµdone¡†qinµaµsimilarµwayµasµforµE-typeµdata.¡†ïTheµparameterµN_CORRECT_CRC_BUµspecifiesµtheµnumberµofµerrors¡†	6perµsubfieldµµtoµbeµcorrected.µµNoµmoreµthanµ2µerrorsµcanµbeµcorrectedµfor¡†	|eachµsubfield.µIfµN_CORRECT_CRC_BUµequalsµ0,µonlyµerrorµdetection¡†	Ãisµperformed.¡†
AForµeachµprotectedµU-typeµdouble-slotµB-subfield,µoneµstatusµbitµis¡†
‡writtenµtoµtheµoutputµportµU_SUBFIELD_CRC_ERROR.µThisµstatus¡†
Îequalsµ0µifµnoµerrorsµwereµdetectedµinµtheµreceivedµcodeµwordµorµifµall¡†errorsµwereµcorrected;µotherwise,µitµisµsetµtoµ1.’¨D“I501ileaf_page_string1:120¥	öä¥	öä¡6!²âdect³120¡,Ï²Parameters¡†)²N_CORRECT_CRC_BU¡†x²Type:²³INT¡†ÙSpecifies´µtheµnumberµofµerrorsµperµprotectedµU-typeµB80-subfieldµtoµbe¡† correctedµbyµtheµCRC-decoder.µµNoµmoreµthanµ2µerrorsµperµU-type¡†gB80-subfieldµcanµbeµcorrected.¡†ÌIfµN_CORRECT_CRC_BUµequalsµ0,µonlyµerrorµdetectionµisµperformed.¡†2²N_CORRECT_CRC_BE¡†²Type:²³INT¡†ãSpecifiesµtheµnumberµofµerrorsµperµE-typeµB80-subfieldµtoµbeµcorrected¡†)byµtheµCRC-decoder.µµNoµmoreµthanµ2µerrorsµperµE-typeµB80-subfield¡†pcanµbeµcorrected.¡†ÖIfµN_CORRECT_CRC_BEµequalsµ0,µonlyµerrorµdetectionµisµperformed.¡,u²Input´µPorts¡†Ï²I_PROTECT¡†²Type:²³INT¡†€Indicates´µwhetherµtheµreceivedµinformationµdataµisµprotectedµorµnot.µOne¡†Çdataµitemµisµreadµfromµthisµportµforµeachµdouble-slotµB-field.µDataµread¡†fromµthisµportµisµignoredµifµtheµB-fieldµcontainsµE-typeµorµnoµdata.¡†m²´µµµµµµI_PROTECTµ=µ1:µprotectedµdataµisµreceived¡†§µµµµµµI_PROTECTµ=µ0:µnon-protectedµdataµisµreceived¡†	²B_FIELD_DATA¡†	V²Type:²³INT¡†	·800´µdataµitemsµ(B-fieldµexcludingµtheµX-field)µthatµareµreadµforµeach¡†	þdoubleµslot.¡†
d²X_FIELD¡†
³²Type:²³INT¡†4µX-fieldµdataµitemsµthatµareµreadµforµeachµslot.’•D“I501ileaf_page_string1:121¥	öä¥	öä¡	!²âdect³121¡†É²LOAD_SCRAMBLER_N¡†²Type:²³INT¡†‰Signal´µcontrollingµtheµdescrambler.µµ800µdataµitemsµareµreadµfromµthis¡†Ðportµforµeveryµdoubleµslot.¡†AIfµLOAD_SCRAMBLERµ=µ0,µtheµshiftµregisterµusedµtoµgenerateµthe¡†ˆscramblingµsequenceµisµ(re)loadedµwithµtheµinitialµstateµcorrespondingµto¡†Îtheµcurrentµframeµnumber.¡†?²FRAME_NO¡†“²Type:²³INT¡†Thisµsignalµcontrolsµtheµdescramblerµandµspecifiesµtheµcurrentµframe¡†Fnumber.µµ800µdataµitemsµareµreadµfromµthisµportµforµeveryµdoubleµslot.¡†·Theµcurrentµframeµnumberµisµusedµtoµestablishµtheµinitialµstateµofµtheµshift¡†þregisterµthatµgeneratesµtheµscramblingµsequence.¡†oFRAME_NOµisµevaluatedµonlyµifµtheµinputµsignalµLOAD_Nµgoesµlowµ(µ0µ).¡†µOtherwise,µdataµprovidedµonµthisµportµisµignored.¡†&²H4¡†z²Type:²³INT¡†çB-fieldµidentityµbit.µBitµH4µofµtheµcurrentµA-fieldµ(bitµ4µofµtheµA-field¡†-header).µµTheµB-fieldµidentityµbitsµ(H4,µH5,µandµH6)µdetermineµwhether¡†ttheµB-fieldµcontainsµU-type,µE-type,µorµnoµdata.¡†å1µdataµitemµisµreadµforµeveryµdoubleµslot.¡†	V²H5¡†	©²Type:²³INT¡†
B-fieldµidentityµbit.µBitµH5µofµtheµcurrentµA-fieldµ(bitµ5µofµtheµA-field¡†
]header).µµTheµB-fieldµidentityµbitsµ(H4,µH5,µandµH6)µdetermineµwhether¡†
£theµB-fieldµcontainsµU-type,µE-type,µorµnoµdata.¡†1µdataµitemµisµreadµforµeveryµdoubleµslot.’•vD“I501ileaf_page_string1:122¥	öä¥	öä¡6!²âdect³122¡†É²H6¡†²Type:²³INT¡†ŒB-field´µidentityµbit.µBitµH6µofµtheµcurrentµA-fieldµ(bitµ6µofµtheµA-field¡†Óheader).µµTheµB-fieldµidentityµbitsµ(H4,µH5,µandµH6)µdetermineµwhether¡†theµB-fieldµcontainsµU-type,µE-type,µorµnoµdata.¡†Œ1µdataµitemµisµreadµforµeveryµdoubleµslot.¡†ÿ²IGNORE_SLOT¡†S²Type:²³INT¡†ÂIndicatesµwhetherµtheµcurrentµB-fieldµisµignoredµorµnot.¡†4IGNORE_SLOTµ=µ1:µtheµcurrentµslotµisµignoredµIGNORE_SLOTµ=µ0:µthe¡†{currentµslotµisµprocessedµnormally¡†î1µdataµitemµisµreadµforµeveryµdoubleµslot.¡,°²Output´µPorts¡†²IN_CHANNEL¡†g²Type:²³INT¡†ÕOutput´µportµforµnon-protectedµinformationµdata.µµ800µdataµitemsµare¡†writtenµforµeachµnon-protectedµU-typeµdouble-slotµB-field.¡†²IP_CHANNEL¡†ã²Type:²³INT¡†	ROutputµportµforµprotectedµinformationµdata.µµ640µdataµitemsµareµwrittenµfor¡†	˜eachµprotectedµU-typeµdouble-slotµB-field.¡†
²M_CF_GF_CHANNELS¡†
_²Type:²³INT¡†
ÎOutputµportµforµE-typeµdata.µµ640µdataµitemsµareµwrittenµforµeachµE-type¡†double-slotµB-field.’vØD“I501ileaf_page_string1:123¥	öä¥	öä¡	!²âdect³123¡†É²XCRC_ERROR¡†²Type:²³INT¡†ƒResult´µofµtheµX-fieldµredundancyµbitµcheck.¡†ê²´µµµµµµµXCRC_ERRORµ=µ1:µµerrorµdetected¡†$µµµµµµµXCRC_ERRORµ=µ0:µµnoµerrorµdetected¡†‹²1´µdataµitemµisµwrittenµforµeveryµdoubleµslot.¡†÷²U_SUBFIELD_CRC_ERROR¡†I²Type:²³INT¡†²U-typeµdouble-slotµB-subfieldµstatusµbit.¡†IfµaµU-typeµB-subfieldµisµreceivedµwithµnoµerrors,µorµallµerrorsµcouldµbe¡†ecorrected,µaµ0µisµoutput;µotherwise,µaµ1µisµoutput.¡†ÒOneµdataµitemµisµwrittenµtoµthisµportµforµeachµU-typeµB-subfield¡†processed.µTherefore,µ10µdataµitemsµareµwrittenµforµeachµU-typeµB-field.¡†…²E_SUBFIELD_CRC_ERROR¡†×²Type:²³INT¡†?E-typeµdouble-slotµB-subfieldµstatusµbit.¡†¬IfµanµE-typeµB-subfieldµisµreceivedµwithµnoµerrors,µorµallµerrorsµcouldµbe¡†ócorrected,µaµ0µisµoutput;µotherwise,µaµ1µisµoutput.¡†_OneµdataµitemµisµwrittenµtoµthisµportµforµeachµE-typeµB-subfield¡†¦processed.µTherefore,µ10µdataµitemsµareµwrittenµforµeachµE-typeµB-field.¡,	X²Implementations¡†	¶²demux_b_field_80¡†
²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³demux_b_field_80¡,
¶²Classes¡†²DECT’ØÔD“I501ileaf_page_string1:124¥	öä¥	öä¡6!²âdect³124¡,Û²eval_a_field¡,M²Evaluates´µtheµA-field¡,Ò²Description¡†.²ThisµmodelµcomparesµtheµreceivedµA-fieldµwithµtheµtransmittedµA-field,¡†uandµcountsµtheµnumberµofµcomparisonµerrorsµasµwellµasµtheµnumberµof¡†¼bitsµcompared.µThisµinformationµisµwrittenµtoµtheµoutputµdataset¡†ERROR_A.¡†kTheµnumberµofµcomparisonµerrorsµandµtheµnumberµofµcomparedµbitsµare¡†±countedµµindividuallyµforµtheµheaderµ(H-field)µandµtheµtailµ(H-field).µThis¡†øinformationµisµwrittenµtoµtheµoutputµdatasetsµERROR_HµandµERROR_T¡†?forµtheµheaderµandµtheµtail,µrespectively.¡†§TheµresultµofµtheµA-fieldµCRC-checkµisµalsoµevaluated.µTheµtotalµnumber¡†îofµA-fieldsµprocessedµisµcountedµasµwellµasµtheµnumberµofµA-fieldsµfor¡†4whichµtheµCRC-checkµfailed.µThisµinformationµisµwrittenµtoµtheµoutput¡†{datasetµµBAD_A_FIELD.¡,"²Parameters¡†~²MAX_NUM_ERRORS_IN_H_FIELD¡†Î²Type:²³INT¡†3Whenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†ymaximumµnumberµofµerrorsµinµtheµH-fieldµbeforeµtheµcorresponding¡†ÀCOUNT2µmodelµsetsµitsµexitµflag.¡†	)IfµMAX_NUM_ERRORS_IN_H_FIELDµ<µ0,µthisµparameterµisµignoredµfor¡†	oexitµprocessing.¡†	ØIfµMAX_NUM_ERRORS_IN_H_FIELDµ=µ0,µtheµexitµflagµofµthe¡†
correspondingµCOUNT2µmodelµisµsetµimmediately.¡†
‡Noteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†
ÎMAX_NUM_ERRORS_IN_H_FIELDµandµMAX_NUM_SLOTSµhave¡†negativeµvalues.’Ô±D“I501ileaf_page_string1:125¥	öä¥	öä¡	!²âdect³125¡†É²MAX_NUM_ERRORS_IN_T_FIELD¡†²Type:²³INT¡†When´µsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†ÆmaximumµnumberµofµerrorsµinµtheµT-fieldµbeforeµtheµcorresponding¡†COUNT2µmodelµsetsµitsµexitµflag.¡†vIfµMAX_NUM_ERRORS_IN_T_FIELDµ<µ0,µthisµparameterµisµignoredµfor¡†¼exitµprocessing.¡†&IfµMAX_NUM_ERRORS_IN_T_FIELDµ=µ0,µtheµexitµflagµofµthe¡†mcorrespondingµCOUNT2µmodelµisµsetµimmediately.¡†ÖNoteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†MAX_NUM_ERRORS_IN_T_FIELDµandµMAX_NUM_SLOTSµhave¡†dnegativeµvalues.¡†Í²MAX_NUM_ERRORS_IN_A_FIELD¡†²Type:²³INT¡†ƒWhenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†ÊmaximumµnumberµofµerrorsµinµtheµA-fieldµbeforeµtheµcorresponding¡†COUNT2µmodelµsetsµitsµexitµflag.¡†zIfµMAX_NUM_ERRORS_IN_A_FIELDµ<µ0,µthisµparameterµisµignoredµfor¡†Áexitµprocessing.¡†*IfµMAX_NUM_ERRORS_IN_A_FIELDµ=µ0,µtheµexitµflagµofµthe¡†qcorrespondingµCOUNT2µmodelµisµsetµimmediately.¡†ÚNoteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†	!MAX_NUM_ERRORS_IN_A_FIELDµandµMAX_NUM_SLOTSµhave¡†	hnegativeµvalues.¡†	Ñ²MAX_NUM_BAD_A_FIELDS¡†
"²Type:²³INT¡†
‡Whenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†
ÎmaximumµnumberµofµA-fieldsµcontainingµanµerrorµbeforeµthe¡†correspondingµCOUNT2µmodelµsetsµitsµexitµflag.’±&D“I501ileaf_page_string1:126¥	öä¥	öä¡6!²âdect³126¡†É²If´µMAX_NUM_BAD_A_FIELDSµ<µ0,µthisµparameterµisµignoredµforµexit¡†processing.¡†{IfµMAX_NUM_ERRORS_BAD_A_FIELDSµ=µ0,µtheµexitµflagµofµthe¡†ÁcorrespondingµCOUNT2µmodelµisµsetµimmediately.¡†,Noteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†sMAX_NUM_BAD_A_FIELDSµandµMAX_NUM_SLOTSµhaveµnegative¡†¹values.¡†$²MAX_NUM_SLOTS¡†u²Type:²³INT¡†ÜWhenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†#maximumµnumberµofµA-fieldsµprocessedµbeforeµtheµCOUNT2µmodels¡†icontainedµinµthisµhierarchicalµmodelµsetµtheirµexitµflags.¡†ÔIfµMAX_NUM_SLOTSµ<µ0,µthisµparameterµisµignoredµforµexitµprocessing.¡†?IfµMAX_NUM_SLOTSµ=µ0,µtheµexitµflagsµofµallµCOUNT2µmodels¡††conatainedµinµthisµhierarchicalµmodelµareµsetµimmediately.µThen,µtheµexit¡†Ìflagµofµthisµmodelµisµalsoµset.¡†7Noteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµif¡†~MAX_NUM_SLOTSµµandµanyµotherµparameterµofµthisµmodelµhave¡†Änegativeµvalues.¡,q²Input´µPorts¡†Ï²H0¡†	 ²Type:²³INT¡†	‡Received´µA-fieldµheaderµbitµH0:µBitµ0µofµtheµreceivedµA-field.¡†	ò1µdataµitemµisµreadµforµeveryµslot.¡†
]²H1¡†
®²Type:²³INT¡†ReceivedµA-fieldµheaderµbitµH1:µBitµ1µofµtheµreceivedµA-field.’&˜D“I501ileaf_page_string1:127¥	öä¥	öä¡	!²âdect³127¡†É²1´µdataµitemµisµreadµforµeveryµslot.¡†9²H2¡†Œ²Type:²³INT¡†øReceivedµA-fieldµheaderµbitµH2:µBitµ2µofµtheµreceivedµA-field.¡†h1µdataµitemµisµreadµforµeveryµslot.¡†Ø²H3¡†+²Type:²³INT¡†—ReceivedµA-fieldµheaderµbitµH3:µBitµ3µofµtheµreceivedµA-field.¡†1µdataµitemµisµreadµforµeveryµslot.¡†x²H4¡†Ë²Type:²³INT¡†7ReceivedµA-fieldµheaderµbitµH4:µBitµ4µofµtheµreceivedµA-field.¡†§1µdataµitemµisµreadµforµeveryµslot.¡†²H5¡†j²Type:²³INT¡†ÖReceivedµA-fieldµheaderµbitµH5:µBitµ5µofµtheµreceivedµA-field.¡†F1µdataµitemµisµreadµforµeveryµslot.¡†¶²H6¡†		²Type:²³INT¡†	uReceivedµA-fieldµheaderµbitµH6:µBitµ6µofµtheµreceivedµA-field.¡†	å1µdataµitemµisµreadµforµeveryµslot.¡†
U²H7¡†
¨²Type:²³INT¡†ReceivedµA-fieldµheaderµbitµH7:µBitµ7µofµtheµreceivedµA-field.’˜¸D“I501ileaf_page_string1:128¥	öä¥	öä¡6!²âdect³128¡†É²1´µdataµitemµisµreadµforµeveryµslot.¡†79µµREF_H0µµ(I)¡†Ÿ²´µµµµµReferenceµforµA-fieldµheaderµbitµH0:µBitµ0µofµtheµtransmitted¡†ÙA-field.¡†µµµµµ1µdataµitemµisµreadµforµeveryµslot.¡†|²REF_H1¡†Î²Type:²³INT¡† ²µµµµµReferenceµforµA-fieldµheaderµbitµH1:µBitµ1µofµtheµtransmitted¡†ÚA-field.¡†µµµµµ1µdataµitemµisµreadµforµeveryµslot.¡†|²REF_H2¡†Ï²Type:²³INT¡†¡²µµµµµReferenceµforµA-fieldµheaderµbitµH2:µBitµ2µofµtheµtransmitted¡†ÛA-field.¡†µµµµµ1µdataµitemµisµreadµforµeveryµslot.¡†}²REF_H3¡†Ï²Type:²³INT¡†¢²µµµµµReferenceµforµA-fieldµheaderµbitµH3:µBitµ3µofµtheµtransmitted¡†ÜA-field.¡†	µµµµµ1µdataµitemµisµreadµforµeveryµslot.¡†	~²REF_H4¡†	Ð²Type:²³INT¡†
¢²µµµµµReferenceµforµA-fieldµheaderµbitµH4:µBitµ4µofµtheµtransmitted¡†
ÜA-field.¡†µµµµµ1µdataµitemµisµreadµforµeveryµslot.’¸‹D“I501ileaf_page_string1:129¥	öä¥	öä¡	!²âdect³129¡†É²REF_H5¡†²Type:²³INT¡†ê²´µµµµµReferenceµforµA-fieldµheaderµbitµH5:µBitµ5µofµtheµtransmitted¡†%A-field.¡†_µµµµµ1µdataµitemµisµreadµforµeveryµslot.¡†Æ²REF_H6¡†²Type:²³INT¡†ç²µµµµµReferenceµforµA-fieldµheaderµbitµH6:µBitµ6µofµtheµtransmitted¡†!A-field.¡†[µµµµµ1µdataµitemµisµreadµforµeveryµslot.¡†Â²REF_H7¡†²Type:²³INT¡†ã²µµµµµReferenceµforµA-fieldµheaderµbitµH7:µBitµ7µofµtheµtransmitted¡†A-field.¡†Xµµµµµ1µdataµitemµisµreadµforµeveryµslot.¡†¿²T¡†²Type:²³INT¡†à²µµµµµReceivedµT-field:µBitsµ8µthroughµ47µofµtheµreceivedµA-field.¡†	µµµµµ40µdataµitemsµareµreadµforµeveryµslot.¡†	²REF_T¡†	Ó²Type:²³INT¡†
¢²µµµµµReferenceµforµT-field:µBitsµ8µthroughµ47µofµtheµtransmitted¡†
ÜA-field.¡†µµµµµ40µdataµitemsµareµreadµforµeveryµslot.’‹«D“I501ileaf_page_string1:130¥	öä¥	öä¡6!²âdect³130¡†É²CRC_ERROR¡†²Type:²³INT¡†ú²´µµµµµResultµofµtheµCRC-checkµforµtheµA-field.¡†4µµµµµ1µdataµitemµisµreadµforµeachµslot.¡,ò²Exit´µFlag¡†V²The´µexitµflagµofµthisµmodelµisµsetµifµtheµexitµflagsµofµallµCOUNT2µmodels¡†œcontainedµinµthisµhierarchicalµmodelµareµset.µNoteµthatµtheµexitµflagµofµthis¡†ãmodelµwillµneverµbeµsetµifµµMAX_NUM_SLOTSµandµanyµotherµparameter¡†)ofµthisµmodelµhaveµnegativeµvalues.¡,í²Implementations¡†Q²eval_a_field¡†¥²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³eval_a_field¡,e²Classes¡†È²DECT¡†OUTPUT’«KD“I501ileaf_page_string1:131¥	öä¥	öä¡	!²âdect³131¡,Û²eval_b_field¡,V²Evaluates´µtheµB-field¡,ç²Description¡†H²ThisµmodelµcomparesµtheµreceivedµB-fieldµwithµtheµtransmittedµB-field.¡†ŽEvaluationµisµdoneµindividuallyµforµtheµvariousµlogicalµchannels.¡†þTheµfollowingµareµtheµevaluationsµthatµareµperformedµbyµthisµmodel:¡†n1)µNon-protectedµInformationµChannel¡†Ø²´µµµµTheµnumberµofµerrorsµinµtheµreceivedµnon-protectedµinformation¡†channel¡†Lµµµµ(IN_CHANNEL)µandµtheµtotalµnumberµofµbitsµcomparedµforµthisµchannel¡††µµµµareµwrittenµtoµtheµoutputµdatasetµERROR_IN.¡†ð²2)´µProtectedµInformationµChannel¡†Z²´µµµµTheµfollowingµisµevaluated:¡†”µµµµa)µTheµnumberµofµerrorsµinµtheµreceivedµprotectedµinformation¡†Îchannel¡†µµµµµµµ(IP_CHANNEL)µandµtheµtotalµnumberµofµbitsµcomparedµforµthis¡†Cchannelµ¡†}µµµµµµµareµwrittenµtoµtheµoutputµdatasetµERROR_IP.¡†·µµµµb)µTheµnumberµofµU-typeµB-fieldsµforµwhichµtheµCRC-checkµfailsµfor¡†ñany¡†+µµµµµµµsubfieldµandµtheµtotalµnumberµofµU-typeµB-fieldsµcheckedµare¡†ewritten¡†ŸµµµµµµµtoµtheµoutputµdatasetµBAD_U_FIELD.µµNoteµthatµonlyµU-type¡†ÚB-fieldsµ¡†	µµµµµµµcontainingµtheµprotectedµinformationµchannelµareµevaluatedµhere.¡†	Nµµµµc)µTheµnumberµofµU-typeµB-subfieldsµforµwhichµtheµCRC-checkµfails¡†	ˆandµtheµ¡†	ÂµµµµµµµtotalµnumberµofµU-typeµB-subfieldsµcheckedµareµwrittenµtoµthe¡†	üoutputµ¡†
6µµµµµµµdatasetµBAD_U_SUBFIELD.µµNoteµthatµonlyµU-typeµB-fields¡†
qcontainingµ¡†
«µµµµµµµtheµprotectedµinformationµchannelµareµevaluatedµhere.¡†²3)´µControlµChannels’KDD“I501ileaf_page_string1:132¥	öä¥	öä¡6!²âdect³132¡†Ã²´µµµµTheµfollowingµisµevaluated:¡†ýµµµµa)µTheµnumberµofµE-typeµB-fieldsµforµwhichµtheµCRC-checkµfailsµfor¡†7any¡†qµµµµµµµsubfieldµandµtheµtotalµnumberµofµE-typeµB-fieldsµcheckedµare¡†«written¡†æµµµµµµµtoµtheµoutputµdatasetµBAD_E_FIELD.¡† µµµµb)µTheµnumberµofµE-typeµB-subfieldsµforµwhichµtheµCRC-checkµfails¡†Zandµtheµµµ¡†”µµµµµµµtotalµnumberµofµE-typeµB-subfieldsµcheckedµareµwrittenµtoµthe¡†Îoutputµ¡†µµµµµµµdatasetµBAD_E_SUBFIELD.µ¡†Bµ¡†}µµµµc)µTheµnumberµofµerrorsµinµtheµreceivedµE-typeµB-fieldsµ(errorsµin¡†·µµµµµµµtheµM-,µCF-,µandµGF-channel)µandµtheµtotalµnumberµofµbits¡†ñcomparedµfor¡†+µµµµµµµthisµchannelµareµwrittenµtoµtheµoutputµdatasetµERROR_E.¡†‹²4)´µAllµChannels¡†ê²´µµµµTheµnumberµofµB-fieldsµforµwhichµtheµX-CRC-checkµfailsµandµthe¡†$total¡†^µµµµnumberµofµB-fieldsµprocessedµareµwrittenµtoµtheµoutputµdataset¡†˜µµµµERROR_XCRC.¡,1²Parameters¡†‹²MAX_NUM_ERRORS_IN_IN_CHANNEL¡†Ú²Type:²³INT¡†<When´µsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†‚maximumµnumberµofµerrorsµinµtheµIN_CHANNELµbeforeµthe¡†ÉcorrespondingµCOUNT2µmodelµsetsµitsµexitµflag.¡†	/IfµMAX_NUM_ERRORS_IN_IN_CHANNELµ<µ0,µthisµparameterµis¡†	uignoredµforµexitµprocessing.¡†	ÛIfµMAX_NUM_ERRORS_IN_IN_CHANNELµ=µ0,µtheµexitµflagµofµthe¡†
"correspondingµCOUNT2µmodelµisµsetµimmediately.¡†
‡Noteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†
ÎMAX_NUM_ERRORS_IN_IN_CHANNELµand¡†MAX_NUM_ITEMS_IN_IN_CHANNELµhaveµnegativeµvalues.’D½D“I501ileaf_page_string1:133¥	öä¥	öä¡	!²âdect³133¡†É²MAX_NUM_ITEMS_IN_IN_CHANNEL¡†²Type:²³INT¡†‡When´µsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†ÎmaximumµnumberµofµIN_CHANNEL-bitsµcomparedµbeforeµthe¡†correspondingµCOUNT2µmodelµsetsµitsµexitµflag.¡†„IfµMAX_NUM_ITEMS_IN_IN_CHANNELµ<µ0,µthisµparameterµisµignored¡†Êforµexitµprocessing.¡†:IfµMAX_NUM_ITEMS_IN_IN_CHANNELµ=µ0,µtheµexitµflagµofµthe¡†€correspondingµCOUNT2µmodelµisµsetµimmediately.¡†ðNoteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†6MAX_NUM_ERRORS_IN_IN_CHANNELµand¡†}MAX_NUM_ITEMS_IN_IN_CHANNELµhaveµnegativeµvalues.¡†ì²MAX_NUM_ERRORS_IN_IP_CHANNEL¡†?²Type:²³INT¡†«Whenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†ñmaximumµnumberµofµerrorsµinµtheµIP_CHANNELµbeforeµthe¡†8correspondingµCOUNT2µmodelµsetsµitsµexitµflag.¡†§IfµMAX_NUM_ERRORS_IN_IP_CHANNELµ<µ0,µthisµparameterµis¡†îignoredµforµexitµprocessing.¡†]IfµMAX_NUM_ERRORS_IN_IP_CHANNELµ=µ0,µtheµexitµflagµofµthe¡†¤correspondingµCOUNT2µmodelµisµsetµimmediately.¡†	Noteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†	ZMAX_NUM_ERRORS_IN_IP_CHANNELµand¡†	 MAX_NUM_PROT_U_FIELDSµhaveµnegativeµvalues.¡†
²MAX_NUM_BAD_PROT_U_FIELDS¡†
c²Type:²³INT¡†
ÎWhenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†maximumµnumberµofµU-fieldsµcontainingµprotectedµdataµforµwhichµthe’½òD“I501ileaf_page_string1:134¥	öä¥	öä¡6!²âdect³134¡†É²CRC-check´µfailsµforµanyµsubfieldµbeforeµtheµcorrespondingµCOUNT2¡†modelµsetsµitsµexitµflag.¡†zIfµMAX_NUM_BAD_PROT_U_FIELDSµ<µ0,µthisµparameterµisµignoredµfor¡†Àexitµprocessing.¡†+IfµMAX_NUM_BAD_PROT_U_FIELDSµ=µ0,µtheµexitµflagµofµthe¡†qcorrespondingµCOUNT2µmodelµisµsetµimmediately.¡†ÛNoteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†"MAX_NUM_BAD_PROT_U_FIELDSµand¡†hMAX_NUM_PROT_U_FIELDSµhaveµnegativeµvalues.¡†Ó²MAX_NUM_BAD_PROT_U_SUBFIELDS¡†#²Type:²³INT¡†‰Whenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†ÐmaximumµnumberµofµU-subfieldsµcontainingµprotectedµdataµforµwhichµthe¡†CRC-checkµfailsµbeforeµtheµcorrespondingµCOUNT2µmodelµsetsµitsµexit¡†]flag.¡†ÇIfµMAX_NUM_BAD_PROT_U_SUBFIELDSµ<µ0,µthisµparameterµis¡†ignoredµforµexitµprocessing.¡†xIfµMAX_NUM_BAD_PROT_U_SUBFIELDSµ=µ0,µtheµexitµflagµofµthe¡†¾correspondingµCOUNT2µmodelµisµsetµimmediately.¡†)Noteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†oMAX_NUM_BAD_PROT_U_SUBFIELDSµand¡†¶MAX_NUM_PROT_U_FIELDSµhaveµnegativeµvalues.¡†	 ²MAX_NUM_PROT_U_FIELDS¡†	q²Type:²³INT¡†	×Whenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†
maximumµnumberµofµevaluatedµU-fieldsµcontainingµprotectedµdata¡†
dbeforeµtheµCOUNT2µmodelsµusedµinµthisµevaluationµsetµtheirµexitµflags.¡†
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IfµMAX_NUM_BAD_E_FIELDSµ<µ0,µthisµparameterµisµignoredµforµexit¡†
Zprocessing.¡†
ÎIfµMAX_NUM_BAD_E_FIELDSµ=µ0,µtheµexitµflagµofµtheµcorresponding¡†COUNT2µmodelµisµsetµimmediately.’¬D“I501ileaf_page_string1:136¥	öä¥	öä¡6!²âdect³136¡†É²Note´µthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†MAX_NUM_BAD_E_FIELDSµandµMAX_NUM_E_FIELDSµhaveµnegative¡†Vvalues.¡†¼²MAX_NUM_BAD_E_SUBFIELDS¡†²Type:²³INT¡†mWhenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†´maximumµnumberµofµE-subfieldsµforµwhichµtheµCRC-checkµfailsµbefore¡†útheµcorrespondingµCOUNT2µmodelµsetsµitsµexitµflag.¡†aIfµMAX_NUM_BAD_E_SUBFIELDSµ<µ0,µthisµparameterµisµignoredµfor¡†§exitµprocessing.¡†IfµMAX_NUM_BAD_E_SUBFIELDSµ=µ0,µtheµexitµflagµofµthe¡†TcorrespondingµCOUNT2µmodelµisµsetµimmediately.¡†ºNoteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†MAX_NUM_BAD_E_SUBFIELDSµandµMAX_NUM_E_FIELDSµhave¡†Gnegativeµvalues.¡†­²MAX_NUM_E_FIELDS¡†ü²Type:²³INT¡†¾²´µµµµµWhenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†øµµµµµmaximumµnumberµofµE-fieldsµevaluatedµbeforeµtheµCOUNT2µmodels¡†2µµµµµusedµinµthisµevaluationµsetµtheirµexitµflags.¡†mµµµµµIfµMAX_NUM_E_FIELDSµ<µ0,µthisµparameterµisµignoredµfor¡†§µµµµµexitµprocessing.¡†áµµµµµIfµMAX_NUM_E_FIELDSµ=µ0,µtheµexitµflagµofµtheµcorresponding¡†	µµµµµCOUNT2µmodelµisµsetµimmediately.¡†	UµµµµµNoteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµ¡†	µµµµµMAX_NUM_E_FIELDSµandµeitherµMAX_NUM_ERRORS_IN_E_FIELDµor¡†	ÉµµµµµMAX_NUM_BAD_E_FIELDSµorµMAX_NUM_BAD_E_SUBFIELDSµhave¡†
µµµµµnegativeµvalues.¡†
c²NUM_SUBFIELDS_PER_SLOT¡†
²²Type:²³INT’bD“I501ileaf_page_string1:137¥	öä¥	öä¡	!²âdect³137¡†Ã²´µµµµµSpecifiesµtheµnumberµofµsubfieldsµperµslotµasµfollows:¡†ýµµµµµµµµ1µ=µhalfµslots¡†7µµµµµµµµ4µ=µfullµslots¡†qµµµµµµµ10µ=µdoubleµslots¡†Ö²MAX_NUM_ERRORS_IN_XCRC¡†'²Type:²³INT¡†ñ²µµµµµWhenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†+µµµµµmaximumµnumberµofµB-fieldsµforµwhichµtheµX-CRC-checkµfails¡†fµµµµµbeforeµtheµcorrespondingµCOUNT2µmodelµsetsµitsµexitµflag.¡† µµµµµIfµMAX_NUM_ERRORS_IN_XCRCµ<µ0,µthisµparameterµisµignoredµfor¡†Úµµµµµexitµprocessing.¡†µµµµµIfµMAX_NUM_ERRORS_IN_XCRCµ=µ0,µtheµexitµflagµofµtheµcorresponding¡†NµµµµµCOUNT2µmodelµisµsetµimmediately.¡†ˆµµµµµNoteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†ÂµµµµµMAX_NUM_ERRORS_IN_XCRCµandµMAX_NUM_XCRCµhaveµnegativeµvalues.¡†'²MAX_NUM_XCRC¡†x²Type:²³INT¡†B²µµµµµWhenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†}µµµµµmaximumµnumberµofµB-fieldsµforµwhichµtheµX-CRCµisµchecked¡†·µµµµµbeforeµtheµcorrespondingµCOUNT2µmodelµsetsµitsµexitµflag.¡†ñµµµµµIfµMAX_NUM_XCRCµ<µ0,µthisµparameterµisµignoredµfor¡†+µµµµµexitµprocessing.¡†eµµµµµIfµMAX_NUM_XCRCµ=µ0,µtheµexitµflagµofµtheµcorresponding¡†ŸµµµµµCOUNT2µmodelµisµsetµimmediately.¡†ÙµµµµµNoteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†	µµµµµMAX_NUM_ERRORS_IN_XCRCµandµMAX_NUM_XCRCµhaveµnegativeµvalues.¡,	¹²Input´µPorts¡†
²REF_IN_CHANNEL¡†
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ÎReference´µdataµforµreceivedµIN_CHANNELµ(thisµisµtheµinformationµdata¡†thatµisµtransmittedµinµnon-protectedµmode).’bD“I501ileaf_page_string1:138¥	öä¥	öä¡6!²âdect³138¡†É²REF_IP_CHANNEL¡†²Type:²³INT¡†ŠReference´µdataµforµreceivedµIP_CHANNELµ(thisµisµtheµinformationµdata¡†Ðthatµisµtransmittedµinµprotectedµmode).¡†A²REF_M_CF_GF_CHANNEL¡†•²Type:²³INT¡†ReferenceµdataµforµM-,µCF,-µorµGF-channelµ(thisµisµtheµcontrolµdataµµthat¡†HisµtransmittedµinµE-typeµB-fields).¡†º²IN_CHANNEL¡†²Type:²³INT¡†zReceivedµIN_CHANNELµ(thisµisµtheµinformationµdataµthatµisµreceivedµin¡†Ánon-protectedµmode).¡†2²IP_CHANNEL¡†…²Type:²³INT¡†òReceivedµIP_CHANNELµ(thisµisµtheµinformationµdataµthatµisµreceivedµin¡†9protectedµmode).¡†ª²M_CF_GF_CHANNEL¡†þ²Type:²³INT¡†kReceivedµM-,µCF-,µorµGF-channelµdataµ(thisµisµtheµcontrolµdataµµthatµis¡†±receivedµinµE-typeµB-fields).¡†	"²XCRC_ERROR¡†	v²Type:²³INT¡†	ãResultµofµtheµX-CRC-check.¡†
T²U_SUB_FIELD_CRC_ERROR¡†
§²Type:²³INT¡†ResultµofµtheµCRC-checkµforµtheµreceivedµU-typeµsubfields.’FD“I501ileaf_page_string1:139¥	öä¥	öä¡	!²âdect³139¡†É²E_SUB_FIELD_CRC_ERROR¡†²Type:²³INT¡†Result´µofµtheµCRC-checkµforµtheµreceivedµE-typeµsubfields.¡,Z²Exit´µFlag¡†¿²The´µexitµflagµofµthisµmodelµisµsetµifµtheµexitµflagsµofµallµCOUNT2µmodels¡†containedµinµthisµhierarchicalµmodelµareµset.µNoteµthatµtheµexitµflagµofµthis¡†Lmodelµwillµneverµbeµsetµinµanyµofµtheµfollowingµcases:¡†Â1)µBothµMAX_NUM_ERRORS_IN_IN_CHANNELµand¡†MAX_NUM_ITEMS_IN_IN_CHANNELµµhaveµnegativeµvalues.¡†~2)µMAX_NUM_PROT_U_FIELDSµandµeither¡†ÄMAX_NUM_ERRORS_IN_IP_CHANNELµor¡†MAX_NUM_BAD_PROT_U_FIELDSµor¡†RMAX_NUM_BAD_PROT_U_SUBFIELDSµhaveµnegativeµvalues.¡†Ç3)µMAX_NUM_E_FIELDSµandµeither¡†MAX_NUM_ERRORS_IN_E_FIELDµorµMAX_NUM_BAD_E_FIELDSµor¡†TMAX_NUM_BAD_E_SUBFIELDSµhaveµnegativeµvalues.¡†Ê4)µBothµMAX_NUM_ERRORS_IN_XCRCµandµMAX_NUM_XCRCµhave¡†negativeµvalues.¡,Û²Implementations¡†	?²eval_b_field¡†	•²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³eval_b_field¡,
Z²Classes¡†
¿²DECT¡†OUTPUT’F)D“I501ileaf_page_string1:140¥	öä¥	öä¡6!²âdect³140¡,Û²eval_z_field¡,V²Evaluates´µtheµZ-field¡,æ²Description¡†G²ThisµmodelµcomparesµtheµreceivedµZ-FieldµwithµtheµX-Field,µandµcounts¡†theµnumberµofµcomparisonµerrorsµasµwellµasµtheµnumberµofµbits¡†Ôcompared.µThisµinformationµisµwrittenµtoµtheµoutputµdatasetµERROR_Z.¡†DAdditionally,µtheµnumberµofµZ-fieldsµcontainingµanµerrorµandµtheµtotal¡†ŠnumberµofµZ-fieldsµevaluatedµareµcounted.µThisµinformationµisµwrittenµto¡†ÑtheµoutputµdatasetµBAD_Z_FIELD.¡,Š²Parameters¡†ë²MAX_NUM_ERRORS¡†>²Type:²³INT¡†©Whenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†ðmaximumµnumberµofµerrorsµinµtheµZ-fieldµbeforeµtheµcorresponding¡†7COUNT2µmodelµsetsµitsµexitµflag.¡†¦IfµMAX_NUM_ERRORSµ<µ0,µthisµparameterµisµignoredµforµexit¡†íprocessing.¡†\IfµMAX_NUM_ERRORSµ=µ0,µtheµexitµflagµofµtheµcorrespondingµCOUNT2¡†£modelµisµsetµimmediately.¡†	Noteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†	YMAX_NUM_ERRORSµandµMAX_NUM_ITEMSµhaveµnegativeµvalues.¡†	É²MAX_NUM_ITEMS¡†
²Type:²³INT¡†
‡Whenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†
ÎmaximumµnumberµofµZ-fieldµdataµitemsµprocessedµbeforeµthe¡†correspondingµCOUNT2µmodelµsetsµitsµexitµflag.’)ÌD“I501ileaf_page_string1:141¥	öä¥	öä¡	!²âdect³141¡†É²If´µMAX_NUM_ITEMSµ<µ0,µthisµparameterµisµignoredµforµexitµprocessing.¡†0IfµMAX_NUM_ITEMSµ=µ0,µtheµexitµflagµofµtheµcorrespondingµCOUNT2¡†wmodelµisµsetµimmediately.¡†ÞNoteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†%MAX_NUM_ERRORSµandµMAX_NUM_ITEMSµhaveµnegativeµvalues.¡†Œ²MAX_NUM_BAD_Z_FIELDS¡†Ü²Type:²³INT¡†?Whenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡††maximumµnumberµofµZ-fieldsµcontainingµanµerrorµbeforeµthe¡†ÌcorrespondingµCOUNT2µmodelµsetsµitsµexitµflag.¡†4IfµMAX_NUM_BAD_Z_FIELDSµ<µ0,µthisµparameterµisµignoredµforµexit¡†zprocessing.¡†âIfµMAX_NUM_BAD_Z_FIELDSµ=µ0,µtheµexitµflagµofµtheµcorresponding¡†(COUNT2µmodelµisµsetµimmediately.¡†Noteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†ÖMAX_NUM_BAD_Z_FIELDSµandµMAX_NUM_Z_FIELDSµhaveµnegative¡†values.¡†„²MAX_NUM_Z_FIELDS¡†Ô²Type:²³INT¡†7Whenµsetµtoµaµvalueµgreaterµthanµ0,µthisµparameterµspecifiesµthe¡†}maximumµnumberµofµZ-fieldsµprocessedµbeforeµtheµcorresponding¡†ÄCOUNT2µmodelµsetsµitsµexitµflag.¡†	+IfµMAX_NUM_Z_FIELDSµ<µ0,µthisµparameterµisµignoredµforµexit¡†	rprocessing.¡†	ÙIfµMAX_NUM_Z_FIELDSµ=µ0,µtheµexitµflagµofµtheµcorrespondingµCOUNT2¡†
 modelµisµsetµimmediately.¡†
‡Noteµthatµtheµexitµflagµofµthisµmodelµwillµneverµbeµsetµifµboth¡†
ÎMAX_NUM_BAD_Z_FIELDSµandµMAX_NUM_Z_FIELDSµhaveµnegative¡†values.’Ì?D“I501ileaf_page_string1:142¥	öä¥	öä¡6!²âdect³142¡,Ï²Input´µPorts¡†2²X_FIELD¡††²Type:²³INT¡†ö4´µX-fieldµbitsµareµreadµfromµthisµportµforµeveryµslot.¡†i²Z_FIELD¡†¾²Type:²³INT¡†-4µZ-fieldµbitsµareµreadµfromµthisµportµforµeveryµslot.¡,ñ²Exit´µFlag¡†U²The´µexitµflagµofµthisµmodelµisµsetµifµtheµexitµflagsµofµbothµCOUNT2µµmodels¡†›containedµinµthisµhierarchicalµmodelµareµset.µNoteµthatµtheµexitµflagµofµthis¡†âmodelµwillµneverµbeµsetµifµbothµMAX_NUM_ERRORSµand¡†(MAX_NUM_ITEMSµhaveµnegativeµvalues,µorµifµboth¡†oMAX_NUM_BAD_Z_FIELDSµandµMAX_NUM_Z_FIELDSµhaveµnegative¡†µvalues.¡,y²Implementations¡†Ý²eval_z_field¡†1²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³eval_z_field¡,ñ²Classes¡†	T²DECT¡†	©OUTPUT’?¼D“I501ileaf_page_string1:143¥	öä¥	öä¡	!²âdect³143¡,Û²packet_p00¡,e²Builds´µtheµShortµPhysicalµChannelµP00µfromµtheµS-fieldµandµtheµA-field,µand¡,¬AppendsµGuardµBits¡,R²Description¡†»²ThisµmodelµgeneratesµtheµpacketsµforµtheµshortµphysicalµchannelµP00.µ64¡†A-fieldµbitsµareµreadµfromµtheµinputµportµIN_A_FIELDµforµeachµphysical¡†Hpacket.µEachµphysicalµpacketµwrittenµtoµtheµoutputµport¡†OUT_P00_PACKETµµconsistsµofµtheµfollowing:¡†²´µµµ-µ32-bitµsynchronizationµwordµ(S-field)¡†?µµµ-µ64-bitµdataµfieldµ(D-field)¡†zµµµ-µ384µguardµbits¡†ð²This´µresultsµinµaµ480-bitµpacket.µTheµsynchronizationµfieldµisµoutputµfirst.¡†mThereµareµtwoµdifferentµsynchronizationµfieldsµforµtheµdownlinkµ(radio¡†³fixedµpartµ(RFP)µtoµcordlessµportableµpartµ(CPP))µandµtheµuplinkµ(CPPµto¡†úRFP).µTheµcurrentµslotµnumberµisµreadµfromµtheµinputµport¡†@IN_SLOT_NUMBERµtoµdistinguishµbetweenµuplinkµandµdownlink.µSlotsµ0¡†‡throughµ11µareµreservedµµforµtheµdownlink.µµSlotsµ12µthroughµ23µare¡†Íreservedµforµtheµuplink.¡†JTheµdownlinkµsynchronizationµwordµisµtheµfollowing:¡†À²´µµµµ1010µ1010µ1010µ1010µ1110µ1001µ1000µ1010¡†ûµµµs0µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµs31¡†	q²The´µuplinkµsynchronizationµwordµisµtheµfollowing:¡†	ç²´µµµµ0101µ0101µ0101µ0101µ0001µ0110µ0111µ0101¡†
!µµµs0µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµs31¡†
˜²Transmission´µisµstartedµwithµs0.¡†Allµguardµbitsµequalµ0.’¼'D“I501ileaf_page_string1:144¥	öä¥	öä¡6!²âdect³144¡,Ï²Input´µPorts¡†2²IN_A_FIELD¡††²Type:²³INT¡†ö64´µA-fieldµbitsµareµreadµfromµthisµinputµportµforµeachµphysicalµµpacket¡†<P00.¡†°²IN_SLOT_NUMBER¡†²Type:²³INT¡†tTheµcurrentµslotµnumberµisµreadµfromµthisµportµtoµselectµtheµµappropriate¡†ºuplink/downlinkµsynchronizationµword.¡†.1µdataµitemµisµreadµfromµthisµportµforµeachµpacket.¡,ò²Output´µPorts¡†U²OUT_P00_PACKET¡†ª²Type:²³INT¡†480´µbitsµareµoutputµonµthisµportµforµeachµpacketµP00µconsistingµofµ32¡†`synchronizationµbits,µ64µdataµbits,µandµ384µguardµbits.¡,$²Implementations¡†‡²packet_p00¡†Û²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³packet_p00¡,	›²Classes¡†	ÿ²DECT’'LD“I501ileaf_page_string1:145¥	öä¥	öä¡	!²âdect³145¡,Û²packet_p08j¡,M²Builds´µtheµHalf-SlotµPacketµP08jµfromµtheµS-field,µA-field,µandµB-field;¡,”OptionallyµGeneratesµtheµZ-field,µandµAppendsµGuardµBits¡,²Description¡†t²Thisµmodelµgeneratesµhalf-slotµphysicalµpacketsµ(P08j).µ64µA-fieldµbits¡†»areµµreadµfromµtheµinputµportµIN_A_FIELDµandµ84+jµB-fieldµbitsµareµread¡†fromµtheµinputµportµIN_B_FIELDµforµeachµphysicalµpacket.¡†jEachµphysicalµpacketµwrittenµtoµtheµoutputµportµOUT_P08j_PACKET¡†±consistsµofµtheµfollowing:¡†²´µµµ-µ32-bitµsynchronizationµwordµ(S-field)¡†Mµµµ-µ148+j-bitµdataµfieldµ(D-field)¡†‡µµµ-µoptionalµ40-bitµZ-fieldµ(onlyµpresentµifµZ_FIELD_PRESENTµ=µ1)¡†Áµµµ-µ60-jµorµ56-jµguardµbits¡†$²This´µresultsµinµaµ240-bitµhalfµpacket.¡†ŒTheµsynchronizationµfieldµisµoutputµfirst.µIfµtheµparameter¡†ÓZ_FIELD_PRESENTµequalsµ1,µtheµZ-fieldµisµgeneratedµbyµrepeatingµthe¡†lastµ4µbitsµofµtheµD-field.¡†‚Thisµmodelµinsertsµanµadditionalµ240µguardµbitsµforµtheµotherµhalfµslot¡†Èbeforeµorµafterµeachµhalf-slotµpacketµdependingµonµtheµparameterµL.µµThe¡†parameterµLµspecifiesµtheµpositionµofµtheµhalf-slotµpacketµwithinµaµfull¡†Uslot.µIfµLµ=µ0,µtheµcomposedµhalf-slotµpacketµisµtransmittedµinµtheµfirst¡†œhalfµofµaµfullµslot.µIfµLµ=µ1,µitµisµtransmittedµinµtheµsecondµhalf.¡†	TheµparameterµJµspecifiesµtheµlengthµofµtheµdataµpartµofµtheµhalf-slot¡†	Kphysicalµpacketµ(148µ+µJµbits).¡†	´Thereµareµtwoµdifferentµsynchronizationµfieldsµforµtheµdownlinkµ(radio¡†	úfixedµpartµ(RFP)µtoµcordlessµportableµpartµ(CPP))µandµtheµuplinkµ(CPPµto¡†
ARFP).µTheµcurrentµslotµnumberµisµreadµfromµtheµinputµport¡†
‡IN_SLOT_NUMBERµtoµdistinguishµbetweenµuplinkµandµdownlink.µSlotsµ0¡†
Îthroughµ11µareµreservedµµforµtheµdownlink.µSlotsµ12µthroughµ23µare¡†reservedµforµtheµuplink.’LòD“I501ileaf_page_string1:146¥	öä¥	öä¡6!²âdect³146¡†É²The´µdownlinkµsynchronizationµwordµisµtheµfollowing:¡†4²´µµµµ1010µ1010µ1010µ1010µ1110µ1001µ1000µ1010¡†oµµµs0µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµs31¡†Ú²The´µuplinkµsynchronizationµwordµisµtheµfollowing:¡†E²´µµµµ0101µ0101µ0101µ0101µ0001µ0110µ0111µ0101¡†µµµs0µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµs31¡†ë²Transmission´µisµstartedµwithµs0.¡†\Allµguardµbitsµequalµ0.¡,²Parameters¡†}²L¡†Ð²Type:²³INT¡†>Specifiesµtheµpositionµofµtheµcomposedµhalf-slotµphysicalµpacketµwithin¡†„theµfullµslotµasµfollows:¡†ð²´µµµµµµLµ=µ0:µdataµisµtransmitµinµtheµfirstµhalfµofµtheµfullµslot¡†*µµµµµµLµ=µ1:µdataµisµtransmitµinµtheµsecondµhalfµofµtheµfullµslot¡†•²J¡†é²Type:²³INT¡†VSpecifies´µtheµlengthµofµtheµdataµpartµofµtheµhalf-slotµphysicalµpacketµ(148¡†+µJµbits).¡†	²Z_FIELD_PRESENT¡†	b²Type:²³INT¡†	ÏIfµZ_FIELD_PRESENTµ=µ1,µtheµZ-fieldµisµgeneratedµbyµrepeatingµtheµlast¡†
4µbitsµofµtheµD-field.µInµthisµcase,µonlyµ56-jµguardµbitsµareµµappendedµto¡†
\obtainµanµoverallµlengthµofµ240µbitsµforµtheµhalf-slotµpacket.¡†
ÎIfµZ_FIELD_PRESENTµ=µ0,µnoµZ-fieldµisµgenerated,µandµ60-jµguardµbits¡†areµappended.’ò–D“I501ileaf_page_string1:147¥	öä¥	öä¡	!²âdect³147¡,Ï²Input´µPorts¡†$²IN_B_FIELD¡†p²Type:²³INT¡†Ë84+j´µB-fieldµbitsµareµreadµfromµthisµinputµportµforµeachµhalf-slotµphysical¡†packet.¡†p²IN_A_FIELD¡†¼²Type:²³INT¡†64µA-fieldµbitsµareµreadµfromµthisµinputµportµforµeachµhalf-slotµphysical¡†]packet.¡†¼²IN_SLOT_NUMBER¡†²Type:²³INT¡†bTheµcurrentµslotµnumberµisµreadµfromµthisµportµtoµselectµtheµµappropriate¡†©uplink/downlinkµsynchronizationµword.¡†1µdataµitemµisµreadµfromµthisµportµforµeachµpacket.¡,”²Output´µPorts¡†é²OUT_P08J_PACKET¡†6²Type:²³INT¡†240´µbitsµareµoutputµonµthisµportµforµeachµhalf-slotµphysicalµpacket¡†×consistingµofµ32µsynchronizationµbits,µ148+jµ(152+j)µdataµbits,µandµµ60-j¡†(56-j)µguardµbits.¡†|240µadditionalµguardµbitsµforµtheµotherµhalfµslotµareµinsertedµbeforeµor¡†Âafterµtheµcomposedµhalfµslotµdependingµonµtheµpositionµofµtheµcomposed¡†		halfµslotµwithinµtheµfullµslot.¡,	•²Implementations¡†	ë²packet_p08j¡†
7²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³packet_p08j¡,
¿²Classes¡†²DECT’––D“I501ileaf_page_string1:148¥	öä¥	öä¡6!²âdect³148¡,Û²packet_p32¡,R²Builds´µtheµFull-SlotµPacketµP32µfromµtheµS-field,µA-field,µandµB-field;¡,˜OptionallyµGeneratesµtheµZ-field,µandµAppendsµGuardµBits¡,#²Description¡†‚²Thisµmodelµgeneratesµfull-slotµphysicalµpacketsµ(P32).µ64µA-fieldµbitsµare¡†ÈreadµfromµtheµinputµportµIN_A_FIELD,µandµ304µB-fieldµbitsµareµreadµfrom¡†theµinputµportµIN_B_FIELDµforµeachµphysicalµpacket.¡†{EachµphysicalµpacketµwrittenµtoµtheµoutputµportµOUT_P32_PACKET¡†Âconsistsµofµtheµfollowing:¡†(²´µµµ-µ32-bitµsynchronizationµwordµ(S-field)¡†bµµµ-µ388-bitµdataµfieldµ(D-field)µ¡†œµµµ-µoptionalµ4-bitµZ-fieldµ(onlyµpresentµifµZ_FIELD_PRESENTµ=µ1)¡†×µµµ-µ60µorµ56µguardµbits¡†=²This´µresultsµinµaµ480-bitµpacket.¡†©Theµsynchronizationµfieldµisµoutputµfirst.µµIfµtheµparameter¡†ðZ_FIELD_PRESENTµµequalsµ1,µtheµZ-fieldµisµgeneratedµbyµrepeatingµthe¡†6lastµ4µbitsµofµtheµD-field.¡†£Thereµareµtwoµdifferentµsynchronizationµfieldsµforµtheµdownlinkµ(radio¡†éfixedµpartµ(RFP)µtoµcordlessµportableµpartµ(CPP))µandµtheµuplinkµ(CPPµto¡†0RFP).µTheµcurrentµslotµnumberµisµreadµfromµtheµinputµport¡†vIN_SLOT_NUMBERµtoµdistinguishµbetweenµuplinkµandµdownlink.µSlotsµ0¡†½throughµ11µareµreservedµforµµtheµdownlink.µµSlotsµ12µthroughµ23µare¡†	reservedµforµtheµuplink.¡†	pTheµdownlinkµsynchronizationµwordµisµtheµfollowing:¡†	Ö²´µµµµ1010µ1010µ1010µ1010µ1110µ1001µ1000µ1010¡†
µµµs0µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµs31¡†
v²The´µuplinkµsynchronizationµwordµisµtheµfollowing:¡†
Ü²´µµµµ0101µ0101µ0101µ0101µ0001µ0110µ0111µ0101¡†µµµs0µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµs31’–ðD“I501ileaf_page_string1:149¥	öä¥	öä¡	!²âdect³149¡†É²Transmission´µisµstartedµwithµs0.¡†=Allµguardµbitsµequalµ0.¡,²Parameters¡†e²Z_FIELD_PRESENT¡†¹²Type:²³INT¡†)IfµZ_FIELD_PRESENTµ=µ1,µtheµZ-fieldµisµgeneratedµbyµrepeatingµtheµlast¡†p4µbitsµofµtheµD-field.µInµthisµcase,µonlyµ56µguardµbitsµareµappendedµto¡†¶obtainµanµoverallµpacketµlengthµofµ480µbits.¡†*IfµZ_FIELD_PRESENTµ=µ0,µnoµZ-fieldµisµgenerated,µandµ60µguardµbits¡†qareµappended.¡,5²Input´µPorts¡†™²IN_B_FIELD¡†í²Type:²³INT¡†]304´µB-fieldµbitsµareµreadµfromµthisµinputµportµforµeachµfull-slotµphysical¡†¤packet.¡†²IN_A_FIELD¡†l²Type:²³INT¡†Ü64µA-fieldµbitsµareµreadµfromµthisµinputµportµforµeachµfull-slotµphysical¡†	"packet.¡†	–²IN_SLOT_NUMBER¡†	ê²Type:²³INT¡†
ZTheµcurrentµslotµnumberµisµreadµfromµthisµportµtoµselectµtheµappropriate¡†
¡uplink/downlinkµsynchronizationµword.¡†1µdataµitemµisµreadµfromµthisµportµforµeachµpacket.’ðÓD“I501ileaf_page_string1:150¥	öä¥	öä¡6!²âdect³150¡,Ï²Output´µPorts¡†2²OUT_P32_PACKET¡††²Type:²³INT¡†ö480´µbitsµareµoutputµonµthisµportµforµeachµfull-slotµphysicalµpacket¡†<consistingµofµ32µsynchronizationµbits,µ388µ(392)µdataµbits,µandµ60µ(56)¡†ƒguardµbits.¡,G²Implementations¡†ª²packet_p32¡†ÿ²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³packet_p32¡,¿²Classes¡†"²DECT’ÓœD“I501ileaf_page_string1:151¥	öä¥	öä¡	!²âdect³151¡,Û²packet_p80¡,R²Builds´µtheµDouble-SlotµPacketµP80µfromµtheµS-field,µA-field,µandµB-field;¡,˜OptionallyµGeneratesµtheµZ-field,µandµAppendsµGuardµBits¡,#²Description¡†‚²Thisµmodelµgeneratesµdouble-slotµphysicalµpacketsµ(P80).µ64µA-fieldµbits¡†ÈareµµreadµfromµtheµinputµportµIN_A_FIELD,µandµ804µB-fieldµbitsµareµread¡†fromµtheµµinputµportµIN_B_FIELDµforµeachµphysicalµpacket.¡†{EachµphysicalµpacketµwrittenµtoµtheµoutputµportµOUT_P80_PACKET¡†Âconsistsµofµtheµfollowing:¡†(²´µµµ-µ32-bitµsynchronizationµwordµ(S-field)¡†bµµµ-µ868-bitµdataµfieldµ(D-field)µ¡†œµµµ-µoptionalµ4-bitµZ-fieldµ(onlyµpresentµifµZ_FIELD_PRESENTµ=µ1)¡†×µµµ-µ60µorµ56µguardµbits¡†=²This´µresultsµinµaµ960-bitµpacket.¡†©Theµsynchronizationµfieldµisµoutputµfirst.µµIfµtheµparameter¡†ðZ_FIELD_PRESENTµµequalsµ1,µtheµZ-fieldµisµgeneratedµbyµrepeatingµthe¡†6lastµ4µbitsµofµtheµD-field.¡†£Thereµareµtwoµdifferentµsynchronizationµfieldsµforµtheµdownlinkµ(radio¡†éfixedµpartµ(RFP)µtoµcordlessµportableµpartµ(CPP))µandµtheµuplinkµ(CPPµto¡†0RFP).µTheµcurrentµslotµnumberµisµreadµfromµtheµinputµport¡†vIN_SLOT_NUMBERµtoµdistinguishµbetweenµuplinkµandµdownlink.µSlotsµ0¡†½throughµ11µareµreservedµµforµtheµdownlink.µµSlotsµ12µthroughµ23µare¡†	reservedµforµtheµuplink.¡†	pTheµdownlinkµsynchronizationµwordµisµtheµfollowing:¡†	Ö²´µµµµ1010µ1010µ1010µ1010µ1110µ1001µ1000µ1010¡†
µµµs0µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµs31¡†
v²The´µuplinkµsynchronizationµwordµisµtheµfollowing:¡†
Ü²´µµµµ0101µ0101µ0101µ0101µ0001µ0110µ0111µ0101¡†µµµs0µµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµµs31’œõD“I501ileaf_page_string1:152¥	öä¥	öä¡6!²âdect³152¡†É²Transmission´µisµstartedµwithµs0.¡†=Allµguardµbitsµequalµ0.¡,²Parameters¡†e²Z_FIELD_PRESENT¡†¹²Type:²³INT¡†)IfµZ_FIELD_PRESENTµ=µ1,µtheµZ-fieldµisµgeneratedµbyµrepeatingµtheµlast¡†p4µbitsµofµtheµD-field.µInµthisµcase,µonlyµ56µguardµbitsµareµµappendedµto¡†¶obtainµanµoverallµpacketµlengthµofµ960µbits.¡†*IfµZ_FIELD_PRESENTµ=µ0,µnoµZ-fieldµisµgenerated,µandµ60µguardµbits¡†qareµappended.¡,5²Input´µPorts¡†™²IN_B_FIELD¡†í²Type:²³INT¡†]804´µB-fieldµbitsµareµreadµfromµthisµinputµportµforµeachµdouble-slot¡†¤physicalµpacket.¡†²IN_A_FIELD¡†l²Type:²³INT¡†Ü64µA-fieldµbitsµareµreadµfromµthisµinputµportµforµeachµdouble-slotµphysical¡†	"packet.¡†	–²IN_SLOT_NUMBER¡†	ê²Type:²³INT¡†
ZTheµcurrentµslotµnumberµisµreadµfromµthisµportµtoµselectµtheµappropriate¡†
¡uplink/downlinkµsynchronizationµword.¡†1µdataµitemµisµreadµfromµthisµportµforµeachµpacket.’õÕD“I501ileaf_page_string1:153¥	öä¥	öä¡	!²âdect³153¡,Ï²Output´µPorts¡†2²OUT_P80_PACKET¡††²Type:²³INT¡†ö960´µbitsµareµoutputµonµthisµportµforµeachµdouble-slotµphysicalµpacket¡†<consistingµofµ32µsynchronizationµbits,µ868µ(872)µdataµbits,µandµ60µ(56)¡†ƒguardµbits.¡,G²Implementations¡†ª²packet_p80¡†ÿ²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³packet_p80¡,¿²Classes¡†"²DECT’ÕöD“I501ileaf_page_string1:154¥	öä¥	öä¡6!²âdect³154¡,Û²SALEH_CHANNEL¡,P²Statistical´µModelµforµIndoorµRadioµMultipathµChannels¡,Ù²Description¡†6²Thisµisµaµstatisticalµmodelµforµindoorµmultipathµchannelsµasµproposedµby¡†}SalehµandµValenzuelaµ[1].µItµoperatesµonµaµcomplexµinputµsignalµprovided¡†ÃonµtheµinputµportsµIN_REALµandµIN_IMAG,µandµgeneratesµtheµcomplex¡†
channelµresponseµthatµisµoutputµonµtheµportsµOUT_REALµand¡†POUT_IMAG.µTheµcomplexµchannelµimpulseµresponseµisµalsoµprovidedµat¡†—theµoutputµportsµIMPULSE_RESPONSE_REALµand¡†ÞIMPULSE_RESPONSE_IMAG.¡†HTheµmodelµisµbasedµonµtheµfactµthatµraysµarriveµinµclusters.µTheµarrival¡†timesµofµtheµfirstµraysµofµtheµclustersµareµmodeledµasµaµPoissonµarrival¡†ÖprocessµwithµsomeµfixedµrateµLAMBDA.µWithinµeachµcluster,µsubsequent¡†raysµalsoµµarriveµaccordingµtoµaµPoissonµprocessµwithµanotherµfixedµrate¡†clambda.µTheseµratesµareµspecifiedµbyµtheµparameters¡†©MeanTimeBetweenClustersµandµMeanTimeBetweenRays.µTheµaverage¡†ðpowerµgainµofµtheµfirstµraysµinµeachµclusterµdecaysµexponentiallyµatµaµtime¡†6constantµsetµbyµtheµparameterµClusterDecayTimeConstant.µTheµaverage¡†}powerµgainµofµtheµraysµwithinµaµµclusterµalsoµdecaysµexponentiallyµat¡†ÄanotherµtimeµconstantµsetµbyµtheµparameterµRayDecayTimeConstant.¡†
Theµphaseµofµtheµraysµisµassumedµtoµbeµuniformlyµdistributedµinµthe¡†Qrangeµ0µtoµ2*PI.¡†¼DependingµonµtheµparameterµRandomSeed,µthisµmodelµgeneratesµone¡†	(fixed)µµrealizationµofµtheµchannelµimpulseµresponse.µClustersµandµrays¡†	Iareµgeneratedµrandomly.µµLowpassµfilteringµwithµaµsiinc-pulseµyieldsµthe¡†	discrete-timeµsamplesµofµtheµchannelµimpulseµresponse.µTheyµareµused¡†	Öforµconvolutionµwithµtheµinputµsignal.µTheµlengthµofµthisµimpulseµresponse¡†
isµsetµbyµtheµparameterµImpulseResponseLength.¡†
‡Thisµmodelµcanµbeµoperatedµinµoneµofµthreeµmodes.µTheµmodesµdifferµin¡†
Îtheµµoutputµpowerµgain.µµTheµmodeµisµestablishedµbyµtheµparameter¡†PowerNormalizationModeµasµfollows:’ö·D“I501ileaf_page_string1:155¥	öä¥	öä¡	!²âdect³155¡†É²PowerNormalizationMode´µ=µ1:¡†0²´µµNoµnormalizationµisµdone.µTheµaverageµreceivedµmultipathµpowerµgain¡†jµµisµcalculatedµfromµtheµpowerµgainµatµaµdistanceµofµ1µmeterµbetween¡†¤receiver¡†Þµµandµtransmitterµgain.µThisµisµsetµbyµtheµparameterµPowerGainAt1Meter.¡†The¡†Rµµpowerµgainµisµproprotionalµtoµtheµfollowing:¡†µµµµ-µantennaµgainsµ¡†Çµµµµ-µdistanceµbetweenµreceiverµandµtransmitterµ(parameter¡†TX_RX_Distance)¡†;µµµµ-µpathµlossµexponentµ(parameterµAlpha)¡†œµµThisµcanµbeµrestatedµasµfollows:¡†ÖµµµµµµPowerµgainµisµproportionalµtoµ¡†µµµµµµµµµµµPowerGainAt1Meterµ*µTX_RX_Distanceµ^µ(-Alpha)µµµµ(1)¡†Jµµµµµµ(whereµ^µindicatesµ"toµtheµpowerµof")¡†„µµAdditionaly,µtheµmeanµvalueµofµtheµpowerµgainµwhenµaveragedµover¡†¾multiple¡†øµµrealizationsµofµtheµchannelµimpulseµresponseµdependsµonµtheµother¡†3parameters¡†mµµinµtheµfollowingµway:¡†§µµRayDecayTimeConstantµµµClusterDecayTimeConstantµ¡†áµµ--------------------µ*µ------------------------µµµµµµµµµµµ(2)¡†µµMeanTimeBetweenRaysµµµµMeanTimeBetweenClustersµ¡†Uµ¡†µµTheµcompleteµexpressionµforµtheµaverageµpowerµgainµisµtheµproduct¡†Êµµofµexpressionsµ(1)µandµ(2).µ¡†µ¡†>µ¡†¥²PowerNormalizationMode´µ=µ2:¡†	²´µµµµµµTheµimpulseµresponseµpowerµwithinµtheµsimulationµbandwidthµis¡†	Eµµµµµµnormalizedµtoµ1,µthatµis:µ¡†	€µ¡†	ºµµµµµµµµµµµµµµµµµµµµµµµµµµ0.5µfs¡†	ôµµµµµµµµµµµµµµµµµµµµµµµµµintegralµ|H(f)|^2µdfµ=µ1,¡†
.µµµµµµµµµµµµµµµµµµµµµµµµµ-0.5µfsµ¡†
hµ¡†
¢µµµµµµwhereµH(f)µisµtheµcurrentµcomplexµchannelµtransferµfunction,¡†
Üµµµµµµfsµisµtheµsamplingµfrequency,µandµ^µindicatesµ"toµtheµpowerµof".µ¡†µ’·ÛD“I501ileaf_page_string1:156¥	öä¥	öä¡6!²âdect³156¡†É²PowerNormalizationMode´µ=µ3:¡†0²´µµµµµµTheµDC-gainµisµnormalizedµtoµ1,µthatµis,µ|H(f=0)|µ=µ1,µwhere¡†kµµµµµµH(f)µisµtheµcurrentµcomplexµchannelµtransferµfunction.¡†Ò²Two´µparametersµdescribingµtheµoverallµcharacteristicsµofµtheµcurrent¡†multipathµprofileµareµreturnedµbyµthisµmodel.µµUseµtheµxsdsintµtoolµduring¡†_simulationµµorµtheµsdsreportµtoolµafterµsimulationµtoµobtainµtheµvaluesµof¡†¦theseµparameters.µTheµtwoµparametersµare:¡†²´µµµExcessDelay¡†GµµµµµReturnsµtheµexcessµdelayµinµseconds.¡†µµµRMSDelaySpread¡†»µµµµµReturnsµtheµrootµmeanµsquareµdelayµspreadµinµseconds.¡†#²These´µparametersµcanµbeµsetµtoµanyµvalueµwhenµconfiguringµthisµmodel.¡†Theµfollowingµparameterµsettingsµrepresentµaµtypicalµscenarioµas¡†×proposedµbyµSalehµandµValenzuelaµ[1]:¡†>²´µµµMeanTimeBetweenClusters:µ300.E-9µ¡†xµµµClusterDecayTimeConstant:µ60.E-9¡†³µµµMeanTimeBetweenRays:µµµµµµµ5.E-9¡†íµµµRayDecayTimeConstant:µµµµµ20.E-9¡†'µµµPowerNormalizationMode:µµµµ1¡†aµµµAlphaµµµµµµµµµµµµµµµµµ:µµµµ3.µ¡†›µ¡†²References:¡†p[1]´µSaleh,µA.A.M.µandµValenzuela,µR.A.,µ"AµStatisticalµModelµforµIndoor¡†Ø²´µµµµµMultipathµPropagation",µIEEEµJournalµonµSelectedµAreasµin¡†	Communications,¡†	LµµµµµVol.µSAC-5,µNoµ2,µFeb.µ1987.¡,	ú²Parameters¡†
Y²SamplingFrequency¡†
«²Type:²³REAL¡†Specifies´µtheµsamplingµfrequencyµofµtheµinputµsignalµinµHz.’ÛƒD“I501ileaf_page_string1:157¥	öä¥	öä¡	!²âdect³157¡†É²ImpulseResponseLength¡†²Type:²³INT¡†€Specifies´µtheµlengthµofµtheµchannelµimpulseµresponseµinµsamples.¡†ê²MeanTimeBetweenClusters¡†;²Type:²³REAL¡†¡Specifiesµtheµmeanµtimeµbetweenµclustersµ(1/LAMBDA)µinµseconds.¡†²ClusterDecayTimeConstant¡†\²Type:²³REAL¡†ÃSpecifiesµtheµclusterµdecayµtimeµconstantµ(GAMMA)µinµseconds.¡†-²MeanTimeBetweenRays¡†~²Type:²³REAL¡†äSpecifiesµtheµmeanµtimeµbetweenµraysµ(1/lambda)µinµseconds.¡†N²RayDecayTimeConstant¡†Ÿ²Type:²³REAL¡†Specifiesµtheµrayµdecayµtimeµconstantµ(gamma)µinµseconds.¡†o²PowerNormalizationMode¡†À²Type:²³INT¡†&Controlsµtheµoutputµpowerµnormalization.µµSetµPowerNormalizationMode¡†mtoµoneµofµtheµfollowing:¡†Ñ²´µµµµµ1:µNoµnormalizationµisµapplied.¡†	µµµµµ2:µTheµimpulseµresponseµpowerµwithinµtheµsimulationµbandwidthµis¡†	Eµµµµµµµµnormalizedµtoµ1,µthatµis:µ¡†	€µµµµµµµµµµµµµµµµµµµµµµµµµµ0.5µfs¡†	ºµµµµµµµµµµµµµµµµµµµµµµµµµintegralµ|H(f)|^2µdfµ=µ1,¡†	ôµµµµµµµµµµµµµµµµµµµµµµµµµ-0.5µfs¡†
.µµµµµµµµwhereµH(f)µisµtheµcurrentµcomplexµchannelµtransferµfunction,µ¡†
hµµµµµµµµfsµisµtheµsamplingµfrequency,µandµ^µindicatesµ"toµtheµpower¡†
¢of".¡†
Üµµµµµ3:µTheµDC-gainµisµnormalizedµtoµ1,µthatµis,µ|H(f=0)|µ=µ1,µwhere¡†µµµµµµµµH(f)µisµtheµcurrentµcomplexµchannelµtransferµfunction.’ƒ|D“I501ileaf_page_string1:158¥	öä¥	öä¡6!²âdect³158¡†É²TX_RX_Distance¡†²Type:²³REAL¡†zSpecifies´µtheµdistanceµ(inµmeters)µbetweenµtheµtransmitterµandµthe¡†Áreceiver.µThisµparameterµisµignoredµifµPowerNormalizationModeµisµnot¡†equalµtoµ1.¡†m²Alpha¡†¼²Type:²³REAL¡†Specifiesµtheµpassµlossµexponentµalpha.µAlphaµequalsµ2.0µforµfreeµspace,¡†eandµcanµbeµgreaterµthanµorµlessµthanµ2.0µinsideµbuildings.µThisµparameter¡†«isµignoredµifµPowerNormalizationModeµisµnotµequalµtoµ1.¡†²PowerGainAt1Meter¡†`²Type:²³REAL¡†ÂSpecifiesµtheµratioµbetweenµreceivedµpowerµandµtransmittedµpowerµatµa¡†	distanceµofµ1µmeterµbetweenµtheµreceiverµandµtransmitterµantennas.µThis¡†OparameterµisµignoredµifµPowerNormalizationModeµisµnotµequalµtoµ1.¡†µ²RandomSeed¡†²Type:²³INT¡†fSpecifiesµtheµstartingµvalueµofµtheµrandomµnumberµgenerator.¡†Ì²ExcessDelay¡†²Type:²³REAL¡†}Returnsµtheµexcessµdelayµinµseconds.µµUseµtheµxsdsintµtoolµduring¡†Äsimulationµorµtheµsdsreportµtoolµafterµsimulationµtoµobtainµtheµreturned¡†	
value.¡†	pThisµparameterµcanµbeµsetµtoµanyµvalueµwhenµconfiguringµthisµmodel.¡†	Ö²RMSDelaySpread¡†
%²Type:²³REAL¡†
‡Returnsµtheµrootµmeanµsquareµdelayµspreadµinµseconds.µµUseµtheµxsdsint¡†
Îtoolµduringµsimulationµorµtheµsdsreportµtoolµafterµsimulationµtoµobtainµthe¡†returnedµvalue.’| D“I501ileaf_page_string1:159¥	öä¥	öä¡	!²âdect³159¡†É²This´µparameterµcanµbeµsetµtoµanyµvalueµwhenµconfiguringµthisµmodel.¡,{²Input´µPorts¡†Ù²IN_REAL¡†+²Type:²³REAL¡†”Real´µpartµofµtheµcomplexµinputµsignal.¡†²IN_IMAG¡†R²Type:²³REAL¡†»Imaginaryµpartµofµtheµcomplexµinputµsignal.¡,l²Output´µPorts¡†Ë²OUT_REAL¡†²Type:²³REAL¡†…Real´µpartµofµtheµcomplexµoutputµsignal.¡†ò²OUT_IMAG¡†D²Type:²³REAL¡†¬Imaginaryµpartµofµtheµcomplexµoutputµsignal.¡†²IMPULSE_RESPONSE_REAL¡†k²Type:²³REAL¡†ÓRealµpartµofµtheµdiscrete-timeµcomplexµchannelµimpulseµresponse.µNote¡†	thatµisµhasµtoµbeµmultipliedµwithµSamplingFrequencyµinµorderµtoµobtainµthe¡†	`samplesµofµtheµanalogueµchannelµimpulseµresponse.¡†	Í²IMPULSE_RESPONSE_IMAG¡†
²Type:²³REAL¡†
‡Imaginaryµpartµofµtheµcomplexµchannelµimpulseµresponse.µNoteµthatµis¡†
ÎhasµtoµbeµmultipliedµwithµSamplingFrequencyµinµorderµtoµobtainµthe¡†samplesµofµtheµanalogueµchannelµimpulseµresponse.’ cD“I501ileaf_page_string1:160¥	öä¥	öä¡6!²âdect³160¡,Ï²Error´µCodes¡†:²INVALID_PARAMETER_SamplingFrequency³²Error´µCode:³²1¡†”SamplingFrequencyµmustµbeµgreaterµthanµ0.¡†²INVALID_PARAMETER_ImpulseResponseLength³²ErrorµCode:³²2¡†mImpulseResponseLengthµmustµbeµgreaterµthanµ0.¡†î²INVALID_PARAMETER_MeanTimeBetweenClusters³²ErrorµCode:³²3¡†GMeanTimeBetweenClustersµmustµbeµgreaterµthanµ0.¡†Ç²INVALID_PARAMETER_ClusterDecayTimeConstant³²ErrorµCode:³²4¡†!ClusterDecayTimeConstantµmustµbeµgreaterµthanµ0.¡†¡²INVALID_PARAMETER_MeanTimeBetweenRays³²ErrorµCode:³²5¡†úMeanTimeBetweenRaysµmustµbeµgreaterµthanµ0.¡†{²INVALID_PARAMETER_RayDecayTimeConstant³²ErrorµCode:³²6¡†ÔRayDecayTimeConstantµmustµbeµgreaterµthanµ0.¡†T²INVALID_PARAMETER_PowerNormalizationMode³²ErrorµCode:³²7¡†®PowerNormalizationModeµmustµbeµgreaterµthanµ0µandµlessµthanµ4.¡†.²INVALID_PARAMETER_TX_RX_Distance³²ErrorµCode:³²8¡†‡TX_RX_Distanceµmustµbeµgreaterµthanµ0.¡†	²INVALID_PARAMETER_Alpha³²ErrorµCode:³²9¡†	aAlphaµmustµbeµgreaterµthanµ0.¡†	á²INVALID_PARAMETER_PowerGainAt1Meter³²ErrorµCode:³²10¡†
;PowerGainAt1Meterµmustµbeµgreaterµthanµ0.¡†
»²LICENSE_ERROR³²ErrorµCode:³²11¡†Theµlicenseµforµthisµmodelµcouldµnotµbeµcheckedµout.’cD“I501ileaf_page_string1:161¥	öä¥	öä¡	!²âdect³161¡,Ï²Implementations¡†2²saleh_channel¡††²Type:²³SOURCE_CODE³²Language:²³C³²Function:²³M57_114_40_saleh_channel¡,F²Classes¡†©²DECT¡†þCHANNEL’®D“I501ileaf_page_string1:162¥	öä¥	öä¡6!²âdect³162¡,Û²SELECTI¡,J²Selects´µOneµofµTwoµIntegerµInputµSignals¡,Ë²Description¡†%²DependingµonµtheµvalueµreadµfromµtheµinportµportµIN_SELECT,µtheµdata¡†litemµfromµINPUT1µorµINPUT2µisµpassedµtoµtheµoutput.µTheµotherµinput¡†²valueµisµµdeleted.¡,R²Input´µPorts¡†­²INPUT1¡†ü²Type:²³INT³²Data´µRate:²³1¡†^Firstµdataµinput.¡†Ä²INPUT2¡†²Type:²³INT³²DataµRate:²³1¡†uSecondµdataµinput.¡†Û²IN_SELECT¡†*²Type:²³INT³²DataµRate:²³1¡†ŒControlµinput.¡†ì²´µµµµµµIN_SELECTµ=µ0:µinputµportµINPUT1µisµselected¡†&µµµµµµIN_SELECTµ=µ1:µinputµportµINPUT2µisµselected¡,À²Output´µPorts¡†	²OUTPUT¡†	i²Type:²³INT³²Data´µRate:²³1¡†	ËDataµoutput.¡,
k²Error´µCodes¡†
Å²SELECT_OUT_OF_RANGE³²Error´µCode:³²1¡†InputµIN_SELECTµmustµbeµeitherµ0µorµ1.’®{D“I501ileaf_page_string1:163¥	öä¥	öä¡	!²âdect³163¡†É²LICENSE_ERROR³²Error´µCode:³²2¡†Theµlicenseµforµthisµmodelµcouldµnotµbeµcheckedµout.¡,â²Implementations¡†E²selecti¡†™²Type:²³SOURCE_CODE³²Language:²³C³²Function:²³M57_114_40_selecti¡,Y²Classes¡†½²ARITH_INTEGER¡†DIGITAL¡†eFLOW_CONTROL’{ýD“I501ileaf_page_string1:164¥	öä¥	öä¡6!²âdect³164¡,Û²xcrc_p08j_check¡,Q²XCRC´µErrorµDetectionµforµHalf-SlotµPacketµP08j¡,Ü²Description¡†:²ThisµmodelµperformsµXCRCµredundancyµcheckingµforµtheµP08jµB-field.¡†€TheµdataµpartµofµtheµB-fieldµisµwrittenµtoµtheµoutputµportµDATA_OUT.µThe¡†ÇresultµofµredundancyµcheckingµisµwrittenµtoµtheµportµBURST_STATUSµµat¡†aµrateµofµ1µperµburst.µIfµthereµisµanµerror,µBURST_STATUSµequalsµ1.¡†TOtherwise,µBURST_STATUSµequalsµ0.¡,²Parameters¡†b²J¡†³²Type:²³INT¡†Specifiesµtheµlengthµofµtheµhalf-slotµB-fieldµ(80µ+µJµ+µ4µbits).¡,Ë²Input´µPorts¡†)²B_FIELD_DATA¡†z²Type:²³INT¡†âData´µinput.µ80µ+µjµB-fieldµdataµbitsµ(excludingµtheµX-field)µareµreadµµfor¡†(eachµhalfµslot.¡†”²X_FIELD¡†æ²Type:²³INT¡†	NDataµinput.µ4µX-fieldµbitsµareµreadµforµeachµhalfµslot.¡,	ý²Output´µPorts¡†
[²DATA_OUT¡†
­²Type:²³INT¡†Data´µoutput.µµ80µ+µjµbitsµareµwrittenµforµeachµhalfµslot.’ý¿D“I501ileaf_page_string1:165¥	öä¥	öä¡	!²âdect³165¡†É²BURST_STATUS¡†²Type:²³INT¡†Indicates´µerror.µµOneµsampleµisµwrittenµforµeachµhalfµslot.¡†ú²´µµµµµµBURST_STATUSµ=µ1:µerrorµoccurred¡†4µµµµµµBURST_STATUSµ=µ0:µnoµerrorµoccurred¡,ò²Implementations¡†V²xcrc_p08j_check¡†ª²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³xcrc_p08j_check¡,j²Classes¡†Í²DECT’¿ED“I501ileaf_page_string1:166¥	öä¥	öä¡6!²âdect³166¡,Û²xcrc_p32¡,S²XCRC´µforµFull-SlotµP32;µ4µRedundancyµBitsµareµInserted¡,à²Description¡†?²ThisµmodelµgeneratesµtheµX-fieldµCRCµbitsµforµfullµslots.µµForµeachµslot,µ4¡††redundancyµbitsµareµgeneratedµfromµ80µinformationµbitsµselectedµfromµa¡†Ìtotalµofµ320µinformationµbits.µµThisµmodelµusesµaµsystematicµµ(84,80)¡†cyclicµcode.µµTheµcodeµgeneratorµpolynomialµisµx**4µ+µ1µ(21µoct).¡†€Theµinformationµbitsµr(i)µusedµforµcodingµareµselectedµasµfollows:¡†ç²´µµµr(i)µ=µb(i+48)µµµµ;µµ0µ<=µiµ>=µ15¡†!µµµµµµµµµµb(i+96)µµµµ;µ16µ<=µiµ>=µ31¡†\µµµµµµµµµµb(i+144)µµµ;µ32µ<=µiµ>=µ47¡†–µµµµµµµµµµb(i+192)µµµ;µ48µ<=µiµ>=µ63¡†Ðµµµµµµµµµµb(i+240)µµµ;µ64µ<=µiµ>=µ79¡†7²where´µb(i)µareµ320µinformationµbitsµcontainedµinµoneµslotµandµb(0)µisµthe¡†~firstµbitµtoµbeµtransmitted.µµNoteµthatµforµeveryµ64µbits,µtheµlastµ16µbitsµare¡†Änotµusedµforµparityµgeneration.¡†2Theµ4µredundancyµbitsµareµappendedµtoµtheµblockµofµ320µinformationµbits.¡,å²Input´µPorts¡†E²DATA_IN¡†—²Type:²³INT¡†	320´µinformationµbitsµareµreadµfromµthisµinputµportµforµeachµfullµslot.¡,	³²Output´µPorts¡†
²DATA_OUT¡†
e²Type:²³INT¡†
Î320´µinformationµbitsµandµ4µredundancyµbitsµareµwrittenµtoµthisµoutputµport¡†forµeachµfullµslot.’EåD“I501ileaf_page_string1:167¥	öä¥	öä¡	!²âdect³167¡,Ï²Implementations¡†2²xcrc_p32¡††²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³xcrc_p32¡,F²Classes¡†©²DECT’åçD“I501ileaf_page_string1:168¥	öä¥	öä¡6!²âdect³168¡,Û²xcrc_p32_check¡,\²XCRC´µErrorµDetectionµforµFullµSlotµPacketµP32¡,ö²Description¡†Z²ThisµmodelµperformsµXCRCµredundancyµcheckingµforµtheµP32µB-field.¡† TheµdataµpartµofµtheµB-fieldµisµwrittenµtoµtheµoutputµportµDATA_OUT.µThe¡†çresultµofµredundancyµcheckingµisµwrittenµtoµtheµportµBURST_STATUSµµat¡†.aµrateµofµ1µperµburst.µIfµthereµisµanµerror,µBURST_STATUSµequalsµ1.¡†tOtherwise,µBURST_STATUSµequalsµ0.¡,<²Input´µPorts¡† ²B_FIELD_DATA¡†õ²Type:²³INT¡†fData´µinput.µ320µB-fieldµdataµbitsµ(excludingµtheµX-field)µareµreadµforµeach¡†­fullµslot.¡†"²X_FIELD¡†w²Type:²³INT¡†èDataµinput.µ4µX-fieldµbitsµareµreadµforµeachµfullµslot.¡,¯²Output´µPorts¡†	²DATA_OUT¡†	i²Type:²³INT¡†	ÚData´µoutput.µµ320µbitsµareµwrittenµforµeachµfullµslot.¡†
O²BURST_STATUS¡†
¤²Type:²³INT¡†Indicatesµerror.µµOneµsampleµisµwrittenµforµeachµfullµslot.’çPD“I501ileaf_page_string1:169¥	öä¥	öä¡	!²âdect³169¡†Ã²´µµµµµµBURST_STATUSµ=µ1:µerrorµoccurred¡†ýµµµµµµBURST_STATUSµ=µ0:µnoµerrorµoccurred¡,»²Implementations¡†²xcrc_p32_check¡†s²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³xcrc_p32_check¡,3²Classes¡†–²DECT’P˜D“I501ileaf_page_string1:170¥	öä¥	öä¡6!²âdect³170¡,Û²xcrc_p80¡,d²XCRC´µforµDouble-SlotµP80;µ4µRedundancyµBitsµareµInserted¡,²Description¡†p²ThisµmodelµgeneratesµtheµX-fieldµCRCµbitsµforµdoubleµslots.µForµeach¡†·doubleµslot,µ4µredundancyµbitsµareµgeneratedµfromµ80µinformationµµbits¡†þselectedµfromµaµtotalµofµ800µinformationµbits.µµThisµmodelµusesµµa¡†Dsystematicµ(164,160)µcyclicµcode.µµTheµcodeµgeneratorµpolynomialµis¡†‹x**4µ+µ1µ(21µoct).¡†Theµinformationµbitsµr(i)µusedµforµcodingµareµselectedµasµfollows:¡†{²´µµµr(i)µ=µb(i+64)µµµµ;µµµ0µ<=µiµ>=µµ15¡†µµµµµµµµµµµb(i+128)µµµ;µµ16µ<=µiµ>=µµ31¡†ðµµµµµµµµµµb(i+192)µµµ;µµ32µ<=µiµ>=µµ47¡†*µµµµµµµµµµb(i+256)µµµ;µµ48µ<=µiµ>=µµ63¡†dµµµµµµµµµµb(i+320)µµµ;µµ64µ<=µiµ>=µµ79µ¡†žµµµµµµµµµµb(i+384)µµµ;µµ80µ<=µiµ>=µµ95µ¡†Øµµµµµµµµµµb(i+448)µµµ;µµ96µ<=µiµ>=µ111µ¡†µµµµµµµµµµb(i+512)µµµ;µ112µ<=µiµ>=µ127µ¡†Lµµµµµµµµµµb(i+576)µµµ;µ128µ<=µiµ>=µ143µ¡†‡µµµµµµµµµµb(i+640)µµµ;µ144µ<=µiµ>=µ159¡†ü²where´µb(i)µareµ800µinformationµbitsµcontainedµinµoneµslot,µandµb(0)µisµthe¡†Bfirstµbitµtoµbeµtransmitted.µµNoteµthatµforµeveryµ80µbits,µtheµlastµ16µbitsµare¡†‰notµusedµforµparityµgeneration.¡†	Theµ4µredundancyµbitsµareµappendedµtoµtheµblockµofµ800µinformationµbits.¡,	Ý²Input´µPorts¡†
F²DATA_IN¡†
²Type:²³INT¡†800´µinformationµbitsµareµreadµfromµthisµinputµportµforµeachµdoubleµslot.’˜ŽD“I501ileaf_page_string1:171¥	öä¥	öä¡	!²âdect³171¡,Ï²Output´µPorts¡†2²DATA_OUT¡††²Type:²³INT¡†ö800´µinformationµbitsµandµ4µredundancyµbitsµareµwrittenµtoµthisµoutputµport¡†<forµeachµdoubleµslot.¡,²Implementations¡†d²xcrc_p80¡†¸²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³xcrc_p80¡,x²Classes¡†Û²DECT’ŽóD“I501ileaf_page_string1:172¥	öä¥	öä¡6!²âdect³172¡,Û²xcrc_p80_check¡,\²XCRC´µErrorµDetectionµforµDouble-SlotµPacketµP80¡,ö²Description¡†Z²ThisµmodelµperformsµXCRCµredundancyµcheckingµforµtheµP80µB-field.¡† TheµdataµpartµofµtheµB-fieldµisµwrittenµtoµtheµoutputµportµDATA_OUT.µThe¡†çresultµofµredundancyµcheckingµisµwrittenµtoµtheµportµBURST_STATUSµµat¡†.aµrateµofµ1µperµburst.µµIfµthereµisµanµerror,µBURST_STATUSµequalsµ1.¡†tOtherwise,µBURST_STATUSµequalsµ0.¡,<²Input´µPorts¡† ²B_FIELD_DATA¡†õ²Type:²³INT¡†fData´µinput.µµ800µB-fieldµdataµbitsµ(excludingµtheµX-field)µareµreadµfor¡†­eachµdoubleµslot.¡†"²X_FIELD¡†w²Type:²³INT¡†èDataµinput.µ4µX-fieldµbitsµareµreadµforµeachµdoubleµslot.¡,¯²Output´µPorts¡†	²DATA_OUT¡†	i²Type:²³INT¡†	ÚData´µoutput.µµ800µbitsµareµwrittenµforµeachµdoubleµslot.¡†
O²BURST_STATUS¡†
¤²Type:²³INT¡†Indicatesµerror.µµOneµsampleµisµwrittenµforµeachµdoubleµslot.’óPD“I501ileaf_page_string1:173¥	öä¥	öä¡	!²âdect³173¡†Ã²´µµµµµµBURST_STATUSµ=µ1:µerrorµoccurred¡†ýµµµµµµBURST_STATUSµ=µ0:µnoµerrorµoccurred¡,»²Implementations¡†²xcrc_p80_check¡†s²Type:²³BLOCK_DIAGRAM³²Language:²³C³²Function:²³xcrc_p80_check¡,3²Classes¡†–²DECT’P