High number of N.NsaDc.SgNB.Add.Fail.Radio.UeCapability in some cells

Hi Guys

High number of N.NsaDc.SgNB.Add.Fail.Radio.UeCapability in some cells.
Vendor is Huawei.
Do you have any comments?

Signature indicate UE doesn’t support endc, i.e. sgnb addition.
Can you check attach request message content having endc related bit as supported?
From Core end handover restriction list not there.

Check UE capability, if endc supported.

I think this counter is counted after gnb received Sgnb_add_req but gnb response with add_fail.
So, it means enb already know UE supported endc before sending add_req.
In sgnb_add_req, enb also sent ue cap to gnb, maybe gnb detect the ue capability not match with 5G cell (for e.g.: encryption, features…).

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Correct.
Or it may possible that ENDC is not supported between that band combination.

Potential Capability mismatch

Is It DSS??
Is BW 70 or 90 MHz??