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authorAndreas Eversberg <jolly@eversberg.eu>2013-03-31 11:57:38 +0200
committerIvan Kluchnikov <kluchnikovi@gmail.com>2014-05-06 17:23:02 +0400
commit0315f6939397554318f42ec023d26e2a17772052 (patch)
tree267412478cb121fe18db4b4da3125f308ea2f40e
parent55bb369a1dd701a17e29c5f0a5ccea76cc67eda1 (diff)
If requested TCH/H channel is not available, try assigning TCH/F
If MNCC application requests a half rate channel, the channel might not be available, due to different cell configuration, so the full rate channel is used instead.
-rw-r--r--openbsc/src/libbsc/abis_rsl.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/openbsc/src/libbsc/abis_rsl.c b/openbsc/src/libbsc/abis_rsl.c
index 5b9213e04..c9bede615 100644
--- a/openbsc/src/libbsc/abis_rsl.c
+++ b/openbsc/src/libbsc/abis_rsl.c
@@ -1414,6 +1414,16 @@ static int rsl_rx_chan_rqd(struct msgb *msg)
/* check availability / allocate channel */
lchan = lchan_alloc(bts, lctype, is_lu);
+ if (!lchan && lctype == GSM_LCHAN_TCH_H) {
+ /* no TCH/H available, try fallback to TCH/F */
+ LOGP(DRSL, LOGL_NOTICE, "BTS %d CHAN RQD: no resources for "
+ "%s 0x%x, retrying with %s\n",
+ msg->lchan->ts->trx->bts->nr,
+ gsm_lchant_name(lctype),
+ rqd_ref->ra, gsm_lchant_name(GSM_LCHAN_TCH_F));
+ lctype = GSM_LCHAN_TCH_F;
+ lchan = lchan_alloc(bts, lctype, is_lu);
+ }
if (!lchan) {
LOGP(DRSL, LOGL_NOTICE, "BTS %d CHAN RQD: no resources for %s 0x%x\n",
msg->lchan->ts->trx->bts->nr, gsm_lchant_name(lctype), rqd_ref->ra);