diff options
| author | Harald Welte <laforge@netfilter.org> | 2009-12-17 00:31:10 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@netfilter.org> | 2009-12-17 00:31:10 +0100 |
| commit | 8d77b9540a907fb36afbb324df549c9261e1ca02 (patch) | |
| tree | d616821b44f212c8f7159cfd206bbc44ca41666b /openbsc/src/abis_rsl.c | |
| parent | 7a7a0d54289114e6a49087a555b7a4f1e6cb3016 (diff) | |
[handover] first functional handover implementation
With this commit, we can successfully hand over a channel from one cell to
another cell. We implement asynchronous intra-BSC (but inter-BTS) handover.
Changes:
* introduce new DHO log category
* extend rsl_chan_activate_lchan() with argument for HO reference
* introduce actual minimal handover decision making in handover_decision.c
* various fixes to bsc_handover_start() in handover_logic.c
Diffstat (limited to 'openbsc/src/abis_rsl.c')
| -rw-r--r-- | openbsc/src/abis_rsl.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/openbsc/src/abis_rsl.c b/openbsc/src/abis_rsl.c index 1fbea837d..d42daf5f2 100644 --- a/openbsc/src/abis_rsl.c +++ b/openbsc/src/abis_rsl.c @@ -576,7 +576,7 @@ int rsl_chan_activate(struct gsm_bts_trx *trx, u_int8_t chan_nr, #endif int rsl_chan_activate_lchan(struct gsm_lchan *lchan, u_int8_t act_type, - u_int8_t ta) + u_int8_t ta, u_int8_t ho_ref) { struct abis_rsl_dchan_hdr *dh; struct msgb *msg; @@ -603,9 +603,9 @@ int rsl_chan_activate_lchan(struct gsm_lchan *lchan, u_int8_t act_type, dh->chan_nr = chan_nr; msgb_tv_put(msg, RSL_IE_ACT_TYPE, act_type); - /* For compatibility with Phase 1 */ msgb_tlv_put(msg, RSL_IE_CHAN_MODE, sizeof(cm), (u_int8_t *) &cm); + /* For compatibility with Phase 1 */ msgb_tlv_put(msg, RSL_IE_CHAN_IDENT, 4, (u_int8_t *) &ci); @@ -616,6 +616,15 @@ int rsl_chan_activate_lchan(struct gsm_lchan *lchan, u_int8_t act_type, msgb_tlv_put(msg, RSL_IE_ENCR_INFO, rc, encr_info); } + switch (act_type) { + case RSL_ACT_INTER_ASYNC: + case RSL_ACT_INTER_SYNC: + msgb_tv_put(msg, RSL_IE_HANDO_REF, ho_ref); + break; + default: + break; + } + msgb_tv_put(msg, RSL_IE_BS_POWER, lchan->bs_power); msgb_tv_put(msg, RSL_IE_MS_POWER, lchan->ms_power); msgb_tv_put(msg, RSL_IE_TIMING_ADVANCE, ta); @@ -1258,7 +1267,7 @@ static int rsl_rx_chan_rqd(struct msgb *msg) lchan->bs_power = 0; /* 0dB reduction, output power = Pn */ lchan->rsl_cmode = RSL_CMOD_SPD_SIGN; lchan->tch_mode = GSM48_CMODE_SIGN; - rsl_chan_activate_lchan(lchan, 0x00, rqd_ta); + rsl_chan_activate_lchan(lchan, 0x00, rqd_ta, 0); /* create IMMEDIATE ASSIGN 04.08 messge */ memset(&ia, 0, sizeof(ia)); |