[srsran-users] UL interference with srsenb

[Serhat Arslan]

Hi,

We are having some stability issues when connecting our Samsung phones (different models) at the same time to our srsenb using srsLTE v20.04.

When we connect a single UE to the eNB and start an iperf, we are able to get a stable connection with a constant bitrate. However when we connect two UEs at the same time with iperfs in the DL for both of them, the iperf throughput goes down significantly and the connection for at least one them is lost after a while. We basically assign different DL PRBs to each UE with the interfaces exposed by SCOPE to isolate their traffic, but couldn’t solve the stability issue. And we observed high error rates for the UL when the second UE starts to transmit.

As a result, we suspect that there is an interference in the UL, and we are looking for ways to solve this. Can anybody help us to find ways to configure eNB to minimize UL interference?

Regards,

Serhat Arslan


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