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-rw-r--r--src/common/l1sap.c8
-rw-r--r--src/osmo-bts-litecell15/l1_if.c8
-rw-r--r--src/osmo-bts-oc2g/l1_if.c8
-rw-r--r--src/osmo-bts-sysmo/l1_if.c8
-rw-r--r--src/osmo-bts-trx/scheduler_trx.c6
-rw-r--r--tests/handover/handover_test.c2
6 files changed, 19 insertions, 21 deletions
diff --git a/src/common/l1sap.c b/src/common/l1sap.c
index 79af8e21..f07e79ca 100644
--- a/src/common/l1sap.c
+++ b/src/common/l1sap.c
@@ -1272,6 +1272,14 @@ static bool rach_pass_filter(struct ph_rach_ind_param *rach_ind, struct gsm_bts
return false;
}
+ /* Link quality defined by C/I (Carrier-to-Interference ratio) */
+ if (rach_ind->lqual_cb < bts->min_qual_rach) {
+ LOGPFN(DL1C, LOGL_INFO, rach_ind->fn, "Ignoring RACH request: "
+ "link quality (%d) below the minimum (%d)\n",
+ rach_ind->lqual_cb, bts->min_qual_rach);
+ return false;
+ }
+
return true;
}
diff --git a/src/osmo-bts-litecell15/l1_if.c b/src/osmo-bts-litecell15/l1_if.c
index 77b72bd0..2ac0b7ab 100644
--- a/src/osmo-bts-litecell15/l1_if.c
+++ b/src/osmo-bts-litecell15/l1_if.c
@@ -997,18 +997,11 @@ static int handle_ph_ra_ind(struct lc15l1_hdl *fl1, GsmL1_PhRaInd_t *ra_ind,
struct msgb *l1p_msg)
{
struct gsm_bts_trx *trx = lc15l1_hdl_trx(fl1);
- struct gsm_bts *bts = trx->bts;
struct gsm_lchan *lchan;
struct osmo_phsap_prim *l1sap;
int rc;
struct ph_rach_ind_param rach_ind_param;
- /* FIXME: this should be deprecated/obsoleted as it bypasses rach.busy counting */
- if (ra_ind->measParam.fLinkQuality * 10 < bts->min_qual_rach) {
- msgb_free(l1p_msg);
- return 0;
- }
-
dump_meas_res(LOGL_DEBUG, &ra_ind->measParam);
if ((ra_ind->msgUnitParam.u8Size != 1) &&
@@ -1029,6 +1022,7 @@ static int handle_ph_ra_ind(struct lc15l1_hdl *fl1, GsmL1_PhRaInd_t *ra_ind,
.rssi = (int8_t) ra_ind->measParam.fRssi,
.ber10k = (unsigned int) (ra_ind->measParam.fBer * 10000.0),
.acc_delay_256bits = ra_ind->measParam.i16BurstTiming * 64,
+ .lqual_cb = (int16_t) ra_ind->measParam.fLinkQuality * 10, /* centiBels */
};
lchan = l1if_hLayer_to_lchan(trx, (uint32_t)ra_ind->hLayer2);
diff --git a/src/osmo-bts-oc2g/l1_if.c b/src/osmo-bts-oc2g/l1_if.c
index 9affc89b..d987bb52 100644
--- a/src/osmo-bts-oc2g/l1_if.c
+++ b/src/osmo-bts-oc2g/l1_if.c
@@ -1053,18 +1053,11 @@ static int handle_ph_ra_ind(struct oc2gl1_hdl *fl1, GsmL1_PhRaInd_t *ra_ind,
struct msgb *l1p_msg)
{
struct gsm_bts_trx *trx = oc2gl1_hdl_trx(fl1);
- struct gsm_bts *bts = trx->bts;
struct gsm_lchan *lchan;
struct osmo_phsap_prim *l1sap;
int rc;
struct ph_rach_ind_param rach_ind_param;
- /* FIXME: this should be deprecated/obsoleted as it bypasses rach.busy counting */
- if (ra_ind->measParam.fLinkQuality * 10 < bts->min_qual_rach) {
- msgb_free(l1p_msg);
- return 0;
- }
-
dump_meas_res(LOGL_DEBUG, &ra_ind->measParam);
if ((ra_ind->msgUnitParam.u8Size != 1) &&
@@ -1085,6 +1078,7 @@ static int handle_ph_ra_ind(struct oc2gl1_hdl *fl1, GsmL1_PhRaInd_t *ra_ind,
.rssi = (int8_t) ra_ind->measParam.fRssi,
.ber10k = (unsigned int) (ra_ind->measParam.fBer * 10000.0),
.acc_delay_256bits = ra_ind->measParam.i16BurstTiming * 64,
+ .lqual_cb = (int16_t) ra_ind->measParam.fLinkQuality * 10, /* centiBels */
};
lchan = l1if_hLayer_to_lchan(trx, (uint32_t)ra_ind->hLayer2);
diff --git a/src/osmo-bts-sysmo/l1_if.c b/src/osmo-bts-sysmo/l1_if.c
index 58fc24ef..df39e2f4 100644
--- a/src/osmo-bts-sysmo/l1_if.c
+++ b/src/osmo-bts-sysmo/l1_if.c
@@ -991,18 +991,11 @@ static int handle_ph_ra_ind(struct femtol1_hdl *fl1, GsmL1_PhRaInd_t *ra_ind,
struct msgb *l1p_msg)
{
struct gsm_bts_trx *trx = femtol1_hdl_trx(fl1);
- struct gsm_bts *bts = trx->bts;
struct gsm_lchan *lchan;
struct osmo_phsap_prim *l1sap;
int rc;
struct ph_rach_ind_param rach_ind_param;
- /* FIXME: this should be deprecated/obsoleted as it bypasses rach.busy counting */
- if (ra_ind->measParam.fLinkQuality * 10 < bts->min_qual_rach) {
- msgb_free(l1p_msg);
- return 0;
- }
-
dump_meas_res(LOGL_DEBUG, &ra_ind->measParam);
if ((ra_ind->msgUnitParam.u8Size != 1) &&
@@ -1024,6 +1017,7 @@ static int handle_ph_ra_ind(struct femtol1_hdl *fl1, GsmL1_PhRaInd_t *ra_ind,
.rssi = (int8_t) ra_ind->measParam.fRssi,
.ber10k = (unsigned int) (ra_ind->measParam.fBer * 10000.0),
.acc_delay_256bits = ra_ind->measParam.i16BurstTiming * 64,
+ .lqual_cb = (int16_t) ra_ind->measParam.fLinkQuality * 10, /* centiBels */
};
lchan = l1if_hLayer_to_lchan(trx, ra_ind->hLayer2);
diff --git a/src/osmo-bts-trx/scheduler_trx.c b/src/osmo-bts-trx/scheduler_trx.c
index 79e42e10..ec1d8320 100644
--- a/src/osmo-bts-trx/scheduler_trx.c
+++ b/src/osmo-bts-trx/scheduler_trx.c
@@ -823,6 +823,12 @@ int rx_rach_fn(struct l1sched_trx *l1t, enum trx_chan_type chan,
l1sap.u.rach_ind.rssi = bi->rssi;
l1sap.u.rach_ind.fn = bi->fn;
+ /* Link quality is defined by C/I (Carrier-to-Interference ratio),
+ * which has optional presence. If it's absent, report the
+ * minimum acceptable value to pass L1SAP checks. */
+ /* TODO: check for TRX_BI_F_CI_CB, and use the value from UL.ind */
+ l1sap.u.rach_ind.lqual_cb = l1t->trx->bts->min_qual_rach;
+
/* Decode RACH depending on its synch. sequence */
switch (synch_seq) {
case RACH_SYNCH_SEQ_TS1:
diff --git a/tests/handover/handover_test.c b/tests/handover/handover_test.c
index a805554e..c9799af7 100644
--- a/tests/handover/handover_test.c
+++ b/tests/handover/handover_test.c
@@ -118,6 +118,8 @@ int main(int argc, char **argv)
/* send access burst with wrong ref */
memset(&nl1sap, 0, sizeof(nl1sap));
osmo_prim_init(&nl1sap.oph, SAP_GSM_PH, PRIM_PH_RACH, PRIM_OP_INDICATION, NULL);
+ /* Report the minimum acceptable value to pass L1SAP checks */
+ nl1sap.u.rach_ind.lqual_cb = bts->min_qual_rach;
nl1sap.u.rach_ind.chan_nr = 0x0a;
nl1sap.u.rach_ind.ra = 42;
l1sap_up(trx, &nl1sap);