diff options
Diffstat (limited to 'src/common/l1sap.c')
| -rw-r--r-- | src/common/l1sap.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/src/common/l1sap.c b/src/common/l1sap.c index a77b53ab..2874c812 100644 --- a/src/common/l1sap.c +++ b/src/common/l1sap.c @@ -1313,6 +1313,20 @@ static int l1sap_ph_rach_ind(struct gsm_bts_trx *trx, DEBUGPFN(DL1P, rach_ind->fn, "Rx PH-RA.ind\n"); + /* PTCCH/UL (Packet Timing Advance Control Channel) */ + if (L1SAP_IS_CHAN_PDCH(rach_ind->chan_nr) && L1SAP_IS_PTCCH(rach_ind->fn)) { + LOGPFN(DL1P, LOGL_DEBUG, rach_ind->fn, + /* TODO: calculate and print Timing Advance Index */ + "Access Burst for continuous Timing Advance control (toa256=%d)\n", + rach_ind->acc_delay_256bits); + + /* QTA: Timing Advance in units of 1/4 of a symbol */ + pcu_tx_rach_ind(bts, rach_ind->acc_delay_256bits >> 6, + rach_ind->ra, rach_ind->fn, rach_ind->is_11bit, + rach_ind->burst_type, PCU_IF_SAPI_PTCCH); + return 0; + } + /* check for handover access burst on dedicated channels */ if (!L1SAP_IS_CHAN_RACH(rach_ind->chan_nr)) { rate_ctr_inc2(trx->bts->ctrs, BTS_CTR_RACH_HO); @@ -1349,8 +1363,8 @@ static int l1sap_ph_rach_ind(struct gsm_bts_trx *trx, rach_ind->acc_delay, rach_ind->ra); pcu_tx_rach_ind(bts, rach_ind->acc_delay << 2, - rach_ind->ra, rach_ind->fn, - rach_ind->is_11bit, rach_ind->burst_type); + rach_ind->ra, rach_ind->fn, rach_ind->is_11bit, + rach_ind->burst_type, PCU_IF_SAPI_RACH); return 0; } |