Error predecoding multiplex: not implemented for 4 Tx ports, Not Implemented (nof_tb=1, pinfo=7)

[Pramodsmvdu]

Hello everyone,
I hope everyone is doing well .
Need some expert advice here ->

While running the test with 10 MHZ, 20 MHZ with some of the cell tower , I see below error.
(USRP B210 on ubuntu ue side) -
/srsRAN_4G/lib/src/phy/phch/ra_dl.c:517: Not Implemented (nof_tb=1, pinfo=7)
srsRAN_4G/lib/src/phy/phch/ra_dl.c:592: Configuring MIMO PMI
srsRAN_4G/lib/src/phy/phch/ra_dl.c:517: Not Implemented (nof_tb=1, pinfo=7)
/srsRAN_4G/lib/src/phy/phch/ra_dl.c:592: Configuring MIMO PMI
srsRAN_4G/lib/src/phy/mimo/precoding.c:1853: Error predecoding multiplex: not implemented for 4 Tx ports

or sometime..

srsran_4g/lib/src/phy/phch/ra_dl.c:519: Not Implemented (nof_tb=1, pinfo=5)
/srsran_4g/lib/src/phy/phch/ra_dl.c:594: Configuring MIMO PMI

After looking into code i see that..
srsran_4g/lib/src/phy/phch/ra_dl.c

/* Translates Precoding Information (pinfo) to Precoding matrix Index (pmi) as 3GPP 36.212 Table 5.3.3.1.5-4 /
static int config_mimo_pmi(const srsran_cell_t cell, const srsran_dci_dl_t* dci, srsran_pdsch_grant_t* grant)
{
uint32_t nof_tb = grant->nof_tb;
if (grant->tx_scheme == SRSRAN_TXSCHEME_SPATIALMUX) {
if (nof_tb == 1) {
if (dci->pinfo > 0 && dci->pinfo < 5) {
grant->pmi = dci->pinfo - 1;
} else {
ERROR("Not Implemented (nof_tb=%d, pinfo=%d)", nof_tb, dci->pinfo);
return -1;
}
} else {

Seem this is not implemented in srsran software for pinfo > 5. currently i am using TAG release_23_04 .

Any suggest if support for pinfo >5 has been added ?

or any workaround to avoid this situation to attach the UE ? can i disable mimo completely to let us attach ?
any suggestion to try changes in ue capability etc . I want to let the ue connect to enodeb with have MIMO support as UE does not support MIMO to avoid above error.

Thank you in advance !

[Pramodsmvdu]

Hello everyone,
Any input on this ? looking for your feedback on this problem.
Thank you !