Rohde & Schwarz SMW-K144 - DMRS Settings

5G New Radio Configuration and Settings
R&S
®
SMW-K144
91User Manual 1178.8013.02 ─ 06
5.5.3 DMRS Settings
Access:
1. Select "Scheduling > User x BWP x > Content > PDSCH/PUSCH > Settings > Con-
fig".
2. Select "DMRS".
Settings:
Sequence Generation................................................................................................... 91
N_SCID.........................................................................................................................91
Length........................................................................................................................... 92
Slot Symbols................................................................................................................. 92
Power............................................................................................................................92
Sequence Generation
The initialization sequence of the pseudo-random sequence generator is generated
based among others depending on a parameter called scrambling ID (N
ID
n_SCID
).
This parameter defines how the scrambling ID is derived:
"N_ID^Cell"
Scrambling ID (i.e. N
ID
n_SCID
) = cell ID (i.e. N
ID
Cell
)
"N_ID^DMRS"
Scrambling ID (i.e. N
ID
n_SCID
) = DMRS scrambling ID (i.e. N
ID
DMRS
)
See also "About PDSCH and DMRS sequence generation" on page 58.
Remote command:
[:SOURce<hw>]:BB:NR5G:SCHed:CELL<ch0>:SUBF<st0>:USER<dir0>:
BWPart<gr0>:ALLoc<user0>:PDSCh|PUSCh:DMRS:SEQGen on page 222
N_SCID
Sets which variable, N
ID
0
or N
ID
1
, is used by the generation of the initialization
sequence of the pseudo-random sequence generator. The value of the parameters
N
ID
0
or N
ID
1
is set per DMRS type with the parameters "User/BWP > DL BWP >
PDSCH" > 59.
See also "About PDSCH and DMRS sequence generation" on page 58.
Remote command:
[:SOURce<hw>]:BB:NR5G:SCHed:CELL<ch0>:SUBF<st0>:USER<dir0>:
BWPart<gr0>:ALLoc<user0>:PDSCh|PUSCh:DMRS:NSID on page 222
PDSCH/PUSCH Settings