ltePHICHTransmitDiversityDecode

PHICH OSFBC decoding

Syntax

[out,CSI]=ltePHICHTransmitDiversityDecode(in,cp,ngroup,hest)

Description

[out,CSI]=ltePHICHTransmitDiversityDecode(in,cp,ngroup,hest) returns Orthogonal Space Frequency Block Code (OSFBC) decoded symbols, out, and channel state information, CSI, given received PHICH symbols, in, along with cyclic prefix length, cp, PHICH resource group number, ngroup, and, channel estimate, hest.

Examples

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Deprecode PHICH Symbols

Open Live Script

Generate the PHICH symbols for multiple antennas using RMC R.11.

Initialize cell-wide settings for RMC R.11.

enb = lteRMCDL('R.11');
phichInfo = ltePHICHInfo(enb);
hiset = [1,1,1;1,2,0];
phichSym = ltePHICH(enb,hiset);

Create an ideal, or identity, channel estimate.

hest = permute(repmat(eye(enb.CellRefP),[1,1,phichInfo.NRE]),[3,1,2]);

Deprecode the received symbols, using the channel estimates.

ng = phichInfo.NGroups;
out = ltePHICHTransmitDiversityDecode(phichSym,enb.CyclicPrefix,ng,hest)

out = 24×1 complex

   0.0000 + 0.0000i
   0.0000 + 0.0000i
   0.0000 + 0.0000i
   0.0000 + 0.0000i
   0.0000 + 0.0000i
   0.0000 + 0.0000i
   0.0000 + 0.0000i
   0.0000 + 0.0000i
   0.0000 + 0.0000i
   0.0000 + 0.0000i
      ⋮

Input Arguments

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`in` — Received PHICH symbols
numeric matrix

Received PHICH symbols, specified as a numeric matrix of size M-by-NRxAnts, where M is the number of received symbols for each of NRxAnts receive antennas.