Change in ...osmo-msc[master]: paging: reduce paging response timer to 3 sec

This is merely a historical archive of years 2008-2021, before the migration to mailman3.

A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/gerrit-log@lists.osmocom.org/.

laforge gerrit-no-reply at lists.osmocom.org
Wed Oct 9 16:56:37 UTC 2019


laforge has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-msc/+/15527 )

Change subject: paging: reduce paging response timer to 3 sec
......................................................................


Patch Set 5:

This is possibly dangerous.  Paging on GSM can take a rather long time, and it depends on factors such as CCCH/PCH capacity, configuration parameters such as number of paging groups, DRX cycle, ... See e.g. 
http://gsm-optimization.blogspot.com/2012/04/paging-group.html or http://etutorials.org/Mobile+devices/gprs+mobile+internet/Chapter+5+Radio+Interface+RLC+MAC+Layer/Listening+to+MS+Paging+Blocks/

If you have configured 9 paging groups, then the paging of one group only occurs once every 9 51-multiframes, which is 9*240ms, i.e. 2.1 seconds.  And as you mapy page any number of MS at the same time in that paging group, there's queueing and quite a bit of delay.  so 10s is actually not even the upper bound, IMHO.


-- 
To view, visit https://gerrit.osmocom.org/c/osmo-msc/+/15527
To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings

Gerrit-Project: osmo-msc
Gerrit-Branch: master
Gerrit-Change-Id: Ie695aa67458753794d70ed5154df51bfe6696da3
Gerrit-Change-Number: 15527
Gerrit-PatchSet: 5
Gerrit-Owner: lynxis lazus <lynxis at fe80.eu>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: pespin <pespin at sysmocom.de>
Gerrit-CC: laforge <laforge at osmocom.org>
Gerrit-Comment-Date: Wed, 09 Oct 2019 16:56:37 +0000
Gerrit-HasComments: No
Gerrit-Has-Labels: No
Gerrit-MessageType: comment
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20191009/75adea00/attachment.htm>


More information about the gerrit-log mailing list