Use qbit-TA to update Timing Advance
Separate qbit-TA to TA conversion into separate function and use it for
computing and updating Timing Advance.
Note: the code was tested with TA=0 only to make sure it does not
introduce regressions.
Change-Id: I96fdbb20b09fb85fdd9fb6dcf3c25f6bee7f80e4
Fixes: OS#1531
diff --git a/src/osmo-bts-litecell15/lc15_l1_if.c b/src/osmo-bts-litecell15/lc15_l1_if.c
index a6358ba..12a977b 100644
--- a/src/osmo-bts-litecell15/lc15_l1_if.c
+++ b/src/osmo-bts-litecell15/lc15_l1_if.c
@@ -32,6 +32,7 @@
#include <lc15_l1_if.h>
#include <gprs_debug.h>
#include <pcu_l1_if.h>
+#include <bts.h>
extern void *tall_pcu_ctx;
@@ -204,6 +205,8 @@
data_ind->msgUnitParam.u8Size-1);
get_meas(&meas, &data_ind->measParam);
+ bts_update_tbf_ta("PH-DATA", data_ind->u32Fn, fl1h->trx_no,
+ data_ind->u8Tn, qta2ta(meas.bto));
switch (data_ind->sapi) {
case GsmL1_Sapi_Pdtch:
@@ -235,31 +238,12 @@
static int handle_ph_ra_ind(struct lc15l1_hdl *fl1h, GsmL1_PhRaInd_t *ra_ind)
{
- uint8_t acc_delay;
-
if (ra_ind->measParam.fLinkQuality < MIN_QUAL_RACH)
return 0;
DEBUGP(DL1IF, "Rx PH-RA.ind");
-
- /* check for under/overflow / sign */
- if (ra_ind->measParam.i16BurstTiming < 0)
- acc_delay = 0;
- else
- acc_delay = ra_ind->measParam.i16BurstTiming >> 2;
-
- LOGP(DL1IF, LOGL_NOTICE, "got (P)RACH request, TA = %u (ignored)\n",
- acc_delay);
-
-#warning "The (P)RACH request is just dropped here"
-
-#if 0
- if (acc_delay > bts->max_ta) {
- LOGP(DL1C, LOGL_INFO, "ignoring RACH request %u > max_ta(%u)\n",
- acc_delay, btsb->max_ta);
- return 0;
- }
-#endif
+ bts_update_tbf_ta("PH-RA", ra_ind->u32Fn, fl1h->trx_no, ra_ind->u8Tn,
+ qta2ta(ra_ind->measParam.i16BurstTiming));
return 0;
}