Counters to measure Latency

4G LTE
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1

Hi Guys,
Are there any counters in Huawei to measure Latency?
I.e. time to transmit between Ue & eNodeB.

2

For 5G NR:

N.QoS.DL.PktDelaygNBDU.Time
N.QoS.DL.PktDelayAirInterface.Time
N.Traffic.DL.RlcFirstPktDelay.Time

3

Thanks.
In LTE getting ~ 100ms in some sites.
Means total user perceived latency would be much higher right?
Enodeb delay + tx delay + server delay

4

In LTE 100 ms latency seems ok, but in 5G not.

5

But if this is the latency in the counter shouldn’t the actual latency be even higher?

6

Air interface gives most of the delay.
Core is like 4-8 msec.
Transmission is like 2-4 msec.

Actually minimum latency you will get is explained here depending on features:

So, it is much less than 100 msec depending on air interface load and radio conditions.

1 Like
7

For LTE:

(L.Traffic.DL.PktDelay.Time.QCI.1+……+L.Traffic.DL.PktDelay.Time.QCI.9)
/
(L.Traffic.DL.PktDelay.Num.QCI.1+……+L.Traffic.DL.PktDelay.Num.QCI.9)