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Physical uplink shared channel





sym=ltePUSCH(ue,chs,cws) returns a vector containing the Physical Uplink Shared Channel (PUSCH) complex symbols for UE-specific settings, ue, PUSCH channel-specific configuration, chs, and the codeword or codewords contained in cws. The size of the matrix sym is N-by-P. Where N is the number of modulation symbols for one antenna port and P is the number of transmission antennas.


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Generate PUSCH symbols for TS36.104 Uplink FRC A3-3 with 3MHz bandwidth.

Initialize UE specific (ue) and channel (pusch) configuration structures, and fixed reference channel (frc).

ue.NCellID = 1;
ue.NSubframe = 0;
ue.RNTI = 1;

pusch.Modulation = 'QPSK';
pusch.PRBSet = [0:14].';
pusch.RV = 0;

frc = lteRMCUL('A3-3');

Generate transport block (trBlk), UL-SCH codewords (cw), and PUSCH symbols (puschSym).

trBlk  = randi([0,1],frc.PUSCH.TrBlkSizes(1),1);
cw = lteULSCH(ue,pusch,trBlk );
puschSym = ltePUSCH(ue,pusch,cw);

Input Arguments

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UE-specific settings, specified as a structure having the following fields.

Parameter FieldRequired or OptionalValuesDescription

Nonnegative integer

Physical layer cell identity



Subframe number



Radio network temporary identifier (RNTI) value (16 bits)


1 (default), 2, 4

Number of transmission antennas.

Data Types: struct

PUSCH channel-specific configuration, specified as a structure having the following fields.

Parameter FieldRequired or OptionalValuesDescription

'QPSK', '16QAM', '64QAM'

Modulation format, specified as a character vector for one codeword or a cell array of one or more vectors for one or two codewords.


Integer column vector or two-column matrix

Physical Resource Block (PRB) indices, specified as a column vector or two-column matrix, corresponding to the slot wise resource allocations for this PUSCH.

If a column vector is provided for PRBSet, the resource allocation is the same in both slots of the subframe. The two-column matrix can be used to specify differing PRBs for each slot in a subframe. The PRB indices are zero-based.


1 (default), 2, 3, 4

Number of transmission layers.

The following field is required only when ue.NTxAnts is set to 2 or 4. Acceptable values for PMI depend upon ue.NTxAnts and NLayers.

Numeric scalar (0...23)

0 (default)

Scalar precoder matrix indication (PMI) to be used during precoding

Data Types: struct

Codeword bit values to be modulated, specified as a vector of bit values for one codeword, or a cell array containing one or two vectors of bit values corresponding to the one or two codewords.

Data Types: double

Output Arguments

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PUSCH symbols, returned as a complex-valued numeric matrix of size N-by-P. N is the number of modulation symbols for one antenna port. P is the number of transmission antennas.

Data Types: double
Complex Number Support: Yes


[1] 3GPP TS 36.104. “Base Station (BS) radio transmission and reception.” 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA). URL:

Introduced in R2013b

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