I am writing a 3gpp test case which require ue to perform beam failure recovery. Beam failure is emulated by dipping the power below threshold…
It has two type of test
- Beam failure from ssb0 and then recovery on ssb1
- Beam failure on CsiRs 0 and recovery on CsiRs1
First test is working fine when tested on UE…
With second test following steps are needed…
- UE initially latched on ssb0
- 2 Csi-rs beams are configured and set for reporting
- Candidate beam (CSI-Rs1) and beam to monitor (Csi-Rs0, Csi-Rs1) for BFR are configured…
- Powers of CsiRs beam 1 is kept off, so that UE should be listening to CsiRs beam 0
- Powers of CsiRs beam 0 is reduced and CsiRs 1 is increased. This should trigger a rach on csi rs beam 1…
I can see that UE is reporting accurate powers for CSI beams. When I reduce the powers for CsiRs beam 0 below the threshold, then ue does not send rach on CsiRs1…
I wish to know that,
- Is BFR with CSi-Rs beam a UE feature… Or this should be supported by all ue?
- Is there any suggestion on what could be going wrong here