What will happen if A3 is triggered & immediately A1 is also triggered?

[ankgitm]

@gdtelecomm

We have set A1/A2 = -43 dBm on small cell operating on 2300 band for GBR traffic to reduce mute call.
This small cell having good FDD (1800/850) overlapping.
But mute call increased on small cell post this setting.
Idea was to shift maximum gbr traffic on nearby macro site which is operating on TDD/FDD band.

For mute call best remedy is to improve DL sinr instead of shifting traffic.
Also fine tune tdiscard timer at pdcp.
For traffic part it’s good to shift from high band to low band having more coverage but with above points.
Other part to improve HO failures, also increase % of maxgbr traffic limit on cell.

@Sourav_Chandra

Let’s say A3 event trigged & suddenly neighbour cell becomes unavailable due to any reason (extreme high speed mobility/ neighbour cell down sudden) then what event UE may get that time, it can be any or A1?

If neighbour cell become unavailable for which A3 reported then network will not configure PCI of that neighbour in RRC connection reconfiguration and UE will try again for next series of event as per radio condition but it can’t be guaranteed to be A1 or A2 or A3 all depends on event config to UE and matching criteria.

[chitrangankumar]

After getting target cell unavailable.
At first it will try to latch with Source cell, if it wouldn’t, then cell reselection process will initiate.
In this case UE event type will be again.
A3.
Because previously A1 is to stop measurement and still measure was not completed due to target cell unavailability.

[sadanandk2]

@gdtelecomm

We have set A1/A2 = -43 dBm on small cell operating on 2300 band for GBR traffic to reduce mute call.
This small cell having good FDD (1800/850) overlapping.
But mute call increased on small cell post this setting.
Idea was to shift maximum gbr traffic on nearby macro site which is operating on TDD/FDD band.

It may be due measurement gaps.

[Edo_Saragih]

Then the HO interfreq/interRAT will not happened. That value can we use if we want to share load between cells with different frequency (MLB scenario). So HO interfreq load based shall be immediately triggered. IMHO

[gdtelecomm]

@ankgitm

Other part to improve HO failures, also increase % of maxgbr traffic limit on cell.

Thanks!
Is there reference parameter settings for the same?

[Ryan]

@chitrangankumar

After getting target cell unavailable.
At first it will try to latch with Source cell, if it wouldn’t, then cell reselection process will initiate.
In this case UE event type will be again.
A3.
Because previously A1 is to stop measurement and still measure was not completed due to target cell unavailability.

Hi.
Quick question here: do you know how I can do reselection with real UE (not amarisoft or simulator UE)?
In other words how do I let or force my UE to do reselection?

Just tried to move to work with a real UE, I succeeded in making a transition between 2 cells but according to log analysis, it doesn’t look like a reselection but rather a new network entry.

I need some log evidence that the UE actually did perform reselection.

Any idea how do I let my real UE to do reselection?

[mac]

which event really happen first…?