Check if DRC is single UE problem or not from U2020 S1 interface trace

4G LTE
1

Hello Huawei Experts,
I have high DCR on a certain cell.
Is it possible to conclude if it is a single UE problem or not from U2020 S1 interface trace?

2

Use FMA tool with CHR logs, it can analyze number of RAB release by user.

3

I think it needs a certian config, since none of the subnets are appearing… :frowning:

4

Which tool is that (FMA) you’re using?

5

Internal FMA in U2020.

6

Import CHR.

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If DCR is high, identify the cell and which raw counter pegged.

7

There are all abnorm release due to radio.
None of the surrounding sites is down, and main KPIS are the same except for the drops.
This is why I am suspecting a Top UE…

8

Does it started suddenly your drops in radio?
Availability and VSWR alarms are ok?
RET and RS power too?

9

VSWR:

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Non change in distance trend.

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10

Check normal and abnormal release count.
Have both increased?

11

Can you check Cell level also and identify one or all cells of same sites Failure increased?

12

1 cell only.

13

Your RS power…
Is it same and traffic trend?

14

18.3 - 3 1
182

15

Any high interference?

16

High interference will do.
Check lst optlog from that time to confirm no changes done.

17

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Will check.

18

For interference, you can not catch easily, you have monitor constantly and real time.

19

Is the time advance trend the same?

20

Yes same @Firas_Attar .