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dexter gerrit-no-reply at lists.osmocom.orgdexter has uploaded this change for review. ( https://gerrit.osmocom.org/13095 Change subject: lchan_fsm: do not include 12.2k in active set on HR channels ...................................................................... lchan_fsm: do not include 12.2k in active set on HR channels When "Config-NB-Code = 1" is set via the S-bits, then the resulting multirate configuration IE will contain 12.2K. Since the generator function is not aware if the lchan is activated for HR or FR it sets the flag for 12.2k always. We have to add a check here in order to set the 12.2k flag in the IE back to 0 so that the active set contains a set of useable rates. Change-Id: I40e7f568f4822040a2d1e78f22dbba0e49d0167e Related: SYS#4470 --- M src/osmo-bsc/lchan_fsm.c 1 file changed, 9 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/95/13095/1 diff --git a/src/osmo-bsc/lchan_fsm.c b/src/osmo-bsc/lchan_fsm.c index 0c54efb..7cbba44 100644 --- a/src/osmo-bsc/lchan_fsm.c +++ b/src/osmo-bsc/lchan_fsm.c @@ -545,6 +545,15 @@ return; } + /* Do not include 12.2 kbps rate when S1 is set. */ + if (lchan->type == GSM_LCHAN_TCH_H && (info->s15_s0 & GSM0808_SC_CFG_AMR_4_75_5_90_7_40_12_20)) { + /* See also 3GPP TS 28.062, chapter 7.11.3.1.3: "In case this Configuration + * "Config-NB-Code = 1" is signalled in the TFO Negotiation for the HR_AMR + * Codec Type,then it shall be assumed that AMR mode 12.2 kbps is (of course) + * not included. */ + mr_conf.m12_2 = 0; + } + if (lchan_mr_config(lchan, &mr_conf) < 0) { lchan_fail("Can not generate multirate configuration IE\n"); return; -- To view, visit https://gerrit.osmocom.org/13095 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bsc Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: I40e7f568f4822040a2d1e78f22dbba0e49d0167e Gerrit-Change-Number: 13095 Gerrit-PatchSet: 1 Gerrit-Owner: dexter <pmaier at sysmocom.de> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20190301/cd975039/attachment.htm>