Precondition
Ue must support UL MIMO–> Check through UE capability message
Configuration
NW:
- n_Antenna_UL=4
- UE-SRS=1
- n_ports=n_antenna_ul
- max_rank=n_antenna_ul
- n_layer=n_antenna_ul
UE :
- n_antenna_ul=4
Validation through Log
-
Step1: Checking UE capability:
featureSetsUplinkPerCC {
{
supportedSubcarrierSpacingUL kHz30,
supportedBandwidthUL fr1: mhz20,
mimo-CB-PUSCH {
maxNumberMIMO-LayersCB-PUSCH fourLayers,
maxNumberSRS-ResourcePerSet 1 -
Step2: RRC setup:
codebookSubset nonCoherent,
maxRank 4,[Max Rank=4]
srs-ResourceToAddModList {
{
srs-ResourceId 0,
nrofSRS-Ports ports4,[SRS Port-4] -
Step3: Validate PHY: check dci0_1 to check Antenna_port & Precoding_info as below.
LinkedIn: 