burst_ind and TCH

246tnt at gmail.com 246tnt at gmail.com
Tue Mar 15 19:48:48 CET 2011

> After receiving an Assignment Command for a hopping TCH/FI
> call l1ctl_tx_dm_est_req_h1() with all necessary parameters

IIRC, the L1 in burst_ind mode doesn't support changing channel assignement  
without first resyncing to the C0.

So you can not do BCCH -> SDCCH -> TCH
you have to do BCCH -> SDCCH -> BCCH (wait for sync) -> TCH

It's a limitation of the current public code in burst_ind mode.

> and tch_mode GSM48_CMODE_SPEECH_V1 or _EFR.

tch_mode is useless for burst_ind


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