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Bug #3493

closed

osmo-bts-trx gprs Attach fails when using TCH/F_PDCH

Added by pespin over 4 years ago. Updated over 4 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
Category:
osmo-bts-trx
Start date:
08/21/2018
Due date:
% Done:

100%

Spec Reference:

Description

When running test voice:trx-b200+mod-bts0-dynts-ipa with osmo-gsm-tester, the modem is unable to GPRS Attach to the network.

That failing test uses TCH/F_PDCH. However, another test using TCH/F_TCH/H_PDCH works fine.
Same test run using osmo-bts-sysmo works fine with both TCH/F_PDCH and TCH/F_TCH/H_PDCH.

I attach an archive with 3 test runs using different configs:
  • run.2018-08-21_17-42-15/gprs:trx-b200+mod-bts0-dynts-ipa: Shows how running osmo-bts-trx with TCH/F_PDCH fails.
  • run.2018-08-21_17-48-47/gprs:sysmo+mod-bts0-dynts-ipa/: Shows how running osmo-bts-sysmo with TCH/F_PDCH succeeds.
  • run.2018-08-21_17-52-16/gprs:trx-b200+mod-bts0-dynts-osmo/: Shows how running osmo-bts-trx with TCH/F_TCH/H_PDCH suceeds.

Files

all-run.tar.gz all-run.tar.gz 3.24 MB pespin, 08/21/2018 04:03 PM

Related issues

Related to OsmoBTS - Bug #1853: validate dynamic TCH/PDCH support in osmo-bts-trxResolvedpespin11/18/2016

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