Rohde & Schwarz SMW-K144 - Page 90

5G New Radio Configuration and Settings
R&S
®
SMW-K144
90User Manual 1178.8013.02 ─ 06
Settings:
CDM Groups w/o Data..................................................................................................90
Number of Layers..........................................................................................................90
TPMI..............................................................................................................................90
CDM Groups w/o Data
Sets the number of DMRS CDM groups without data, required to select the number of
DMRS ports and hence the number of antenna ports.
For details, see TS 38.212.
If "User/BWPs > UL BWP Config > PUSCH" > Transform Precoding = "On", this
parameter is set automatically.
Remote command:
[:SOURce<hw>]:BB:NR5G:SCHed:CELL<ch0>:SUBF<st0>:USER<dir0>:
BWPart<gr0>:ALLoc<user0>:PDSCh|PUSCh:TXSCheme:CDMData on page 223
Number of Layers
Sets the number of precoding layers.
The combination of number of codewords and number of layers determines the layer
mapping for the selected precoding scheme. The minimum number of layers corre-
sponds to the selected Number of Codewords.
If "User/BWPs > UL BWP Config > PUSCH" > TxConfig = "Codebook", this parameter
is set automatically.
Remote command:
[:SOURce<hw>]:BB:NR5G:SCHed:CELL<ch0>:SUBF<st0>:USER<dir0>:
BWPart<gr0>:ALLoc<user0>:PDSCh|PUSCh:TXSCheme:NLAYers on page 223
TPMI
Access: "User/BWPs > UL BWP Config > PUSCH" > TxConfig = "Codebook".
Sets the TPMI index, required to select the precoding matrix, as defined in TS 38.211.
Remote command:
[:SOURce<hw>]:BB:NR5G:SCHed:CELL<ch0>:SUBF<st0>:USER<dir0>:
BWPart<gr0>:ALLoc<user0>:PUSCh:TXSCheme:TPMidx on page 224
PDSCH/PUSCH Settings