diff options
| author | Max <msuraev@sysmocom.de> | 2016-12-28 12:43:09 +0100 |
|---|---|---|
| committer | Max <msuraev@sysmocom.de> | 2017-01-04 11:25:17 +0100 |
| commit | f9778b2a26ce06959ee7e188eb1d533d896f1846 (patch) | |
| tree | 6726018873d26f98e57c72aa932882aaacebdbea /src/osmo-bts-litecell15/tch.c | |
| parent | c2ecca6b0496127709dcd3afa9d366085d8bec97 (diff) | |
DTX AMR HR: fix inhibition
* Unlike in AMR FR, in AMR HR incoming ONSET have to be treated
differently depending on whether we've recently sent SID UPDATE or
EMPTY frame. Split ST_SID_U FSM state into 2 states to accommodate for
that and make sure that additional states specific to AMR HR are not
used for AMR FR.
* Avoid sending E_VOICE and E_SID_U in corresponding states
as those do not initiate FSM state transitions anyway. This decrease
extra load from FSM signalling which otherwise would be triggered on
per-frame basis.
* Introduce separate signal for SID First P1 -> P2 transition to avoid
confusion with E_COMPL and E_SID_U initiated transitions from P1
state.
* Don't init DTX FSM for SDCCH channels.
Change-Id: I229ba39a38a223fada4881fc9aca35d3639371f8
Related: OS#1801
Diffstat (limited to 'src/osmo-bts-litecell15/tch.c')
| -rw-r--r-- | src/osmo-bts-litecell15/tch.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/osmo-bts-litecell15/tch.c b/src/osmo-bts-litecell15/tch.c index de3c7e35..a47a88f6 100644 --- a/src/osmo-bts-litecell15/tch.c +++ b/src/osmo-bts-litecell15/tch.c @@ -322,6 +322,7 @@ int l1if_tch_encode(struct gsm_lchan *lchan, uint8_t *data, uint8_t *len, dtx_cache_payload(lchan, rtp_pl, rtp_pl_len, fn, 0); return 1; case ST_SID_U: + case ST_U_NOINH: return -EAGAIN; case ST_FACCH: return -EBADMSG; |