11bit RACH support in osmo-bts-trx
osmo-bts-trx currently can only do 8bit RACH, unlike other BTS models
#12 Updated by msuraev about 2 months ago
- Status changed from Stalled to In Progress
- % Done changed from 10 to 40
After merging https://gerrit.osmocom.org/c/osmo-bts/+/6315 and corresponding https://gerrit.osmocom.org/c/osmo-trx/+/11423 and related OsmoTRX patches there's TTCN-3 failure in TC_rach_content() and TC_rach_count() due to some (about 16 out of 1000) RACH being "lost". So far I'm unable to reproduce this using real phone. I'm not sure yet what's so special about the lost RACH (e. g. '0xCF') which makes a difference or whether rach content itself has anything to do with it at all. Investigation is ongoing.
The error constantly appears only with '0xCF', '0xBE' and '0x00' RA values for different FN.
- Status changed from In Progress to Stalled
- % Done changed from 40 to 50
Related https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/13128 might be useful for local testing.
Once the issue is fixed, https://gerrit.osmocom.org/c/osmo-bts/+/5833 should be merged as well.