[srslte-users] PDCCH MISS being too High with PDSCH transmission

[Sandeep Sarma -ERS, HCL Tech]

Hello srsLTE Users,


I have a test setup with 2 USRP B210 SDRs and a wired RF cable between Tx and Rx antenna ports.


While I run the pdsch_enb and pdsch_ue example scripts, I see a lot of DCI miss through PDCCH-Miss % being around 90-98%.


Tx_gain, clock rate is default and I have a 30DB attenuator at the pdsch_ue (USRP Rrx side).


Below are the commands and verbose logs are attached.

pdsch_enb:

./pdsch_enodeb -f 5200000000 -m 11 -p 50 -v -n 5000


pdsch_ue:

./pdsch_ue -f 5200000000 -r 1234 -v


I've also tried with increasing the tx_gain and mcs but situation is same.


Appreciate if I can hear from anyone on how to improve the decoding at the receiving end. It would help tremendously.


BR,

Sandeep

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