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Bug #1868

closed

TCH/F_PDCH is broken

Added by neels over 7 years ago. Updated over 7 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
-
Target version:
-
Start date:
12/05/2016
Due date:
% Done:

100%

Resolution:
Spec Reference:

Description

Reported by: Mrinal Mishra <>
http://lists.osmocom.org/pipermail/openbsc/2016-December/009902.html

From openbsc.git c3f72f63afde926dfc46827d6880055597515fb6 on,
CS call is not working using TCH/F_PDCH dynamic channel configuration in URRP B210 board(osmo-trx)

(Added this issue in the OpenBSC project, since it is reported to break by
the OpenBSC revision)


Files

bsc_log_dyn_tch_not_working_c3f7_version.txt bsc_log_dyn_tch_not_working_c3f7_version.txt 23.1 KB log/vty transcript from Mrinal.Mishra@radisys.com neels, 12/05/2016 01:22 PM
bsc_log_dyn_tch_working_2afff_version.txt bsc_log_dyn_tch_working_2afff_version.txt 29.9 KB log/vty transcript from Mrinal.Mishra@radisys.com neels, 12/05/2016 01:23 PM
Actions #1

Updated by neels over 7 years ago

Curious, this commit should have no effect on whether TCH/F_PDCH work or not.

When I find the time, I will try to reproduce your failure.

Actions #2

Updated by neels over 7 years ago

  • Assignee set to neels
Actions #3

Updated by neels over 7 years ago

  • Subject changed from TCH/F_PDCH fails on osmo-bts-trx to TCH/F_PDCH is broken
  • Status changed from New to Resolved
  • % Done changed from 0 to 100

Reproduced the failure and found a fix.

Actually, this is not limited to osmo-bts-trx, but should be broken on all BTS models.
My assumption that the mentioned commit does not affect the channel allocator is false.
In fact it breaks TCH/F_PDCH completely, as explained in https://gerrit.osmocom.org/1366

I failed to verify TCH/F_PDCH functionality for a long time, sorry about that.

Thanks to Mrinal Mishra for spotting this.

Actions #4

Updated by laforge over 7 years ago

  • Status changed from Resolved to Closed
Actions #5

Updated by neels over 7 years ago

...and now the fix is actually merged to openbsc master.
https://git.osmocom.org/openbsc/commit/?id=8825c6940957fa2198d1f9995856e4232bc264fb

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