getTransportBlock

Generate a random sequence of binary values corresponding to one transport block of length 5120.

trBlkLen = 5120;
trBlk = randi([0 1],trBlkLen,1,'int8');

Create and configure a DL-SCH encoder System object with multiple HARQ processes and the specified target code rate.

targetCodeRate = 567/1024;
encDL = nrDLSCH('MultipleHARQProcesses',true);
encDL.TargetCodeRate = targetCodeRate;

Load transport block trBlk for transport block number 0 into the DL-SCH encoder, specifying HARQ process number 2.

harqID = 2;
trBlkID = 0;
setTransportBlock(encDL,trBlk,trBlkID,harqID);

Call the encoder with QPSK modulation scheme, 3 transmission layers, an output length of 10,002 bits, and redundancy version 3. The encoder applies the DL-SCH processing chain to the transport block loaded into the object for HARQ process number 2.

mod = 'QPSK';
nLayers = 3;
outlen = 10002;
rv = 3;
codedTrBlock = encDL(mod,nLayers,outlen,rv,harqID);

Retrieve the transport block for transport block number 0 from the encoder, specifying HARQ process number 2. Verify that the retrieved block is identical to the block originally loaded into the encoder for this HARQ process.

tmp = getTransportBlock(encDL,trBlkID,harqID);
isequal(tmp,trBlk)

ans = logical
   1