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Bug #5176

Long call start time

Added by Rolariali 4 months ago. Updated about 1 month ago.

Status:
Rejected
Priority:
Low
Assignee:
-
Category:
-
Target version:
-
Start date:
06/11/2021
Due date:
% Done:

0%

Spec Reference:

Description

Attempting to establish a 20(and more) simultaneous calls causes the last call executes in 10 (and more) seconds.

I am going to use the simultaneous calls for notifying the occurrence of emergencies. Is there a way to avoid this delay (more 10 seconds)?

I've been experimenting on PAGING_TIMER in the source file: https://github.com/osmocom/osmo-bsc/blob/master/src/osmo-bsc/paging.c#L60

If I assign this var

#define PAGING_TIMER 0, 50000

The simultaneous calls in this case start within two seconds. I'm satisfied this result but there's doubt it is the right fix.

History

#1 Updated by laforge 4 months ago

Hi Rolariali,

On Fri, Jun 11, 2021 at 12:39:34PM +0000, Rolariali [REDMINE] wrote:

Attempting to establish a 20(and more) simultaneous calls causes the last call executes in 10 (and more) seconds.

where are your log files and pcap files showing what happens in detail? GSM is a quite low-capacity
technology, and you have to have the radio resources for 20 simultaneous calls.

I am going to use the simultaneous calls for notifying the occurrence of emergencies.

Any technology using Unicast / poin-to-point or otherwise dedicated resources per user is likely
to suffer from overload situations

You may want to look into cell broadcast and ETWS/CMAS/WEA/KPAS/... instead.

#2 Updated by laforge about 1 month ago

  • Status changed from New to Rejected

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