Change in ...osmo-bts[master]: osmo-bts-trx/scheduler: rx_rach_fn(): provide actual C/I ratio to L1SAP

fixeria gerrit-no-reply at lists.osmocom.org
Sun Jul 7 13:22:03 UTC 2019


fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bts/+/14688


Change subject: osmo-bts-trx/scheduler: rx_rach_fn(): provide actual C/I ratio to L1SAP
......................................................................

osmo-bts-trx/scheduler: rx_rach_fn(): provide actual C/I ratio to L1SAP

Change-Id: I8d86dec7ebc039cbfd038c4342ff328b11281865
---
M src/osmo-bts-trx/scheduler_trx.c
1 file changed, 7 insertions(+), 2 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/88/14688/1

diff --git a/src/osmo-bts-trx/scheduler_trx.c b/src/osmo-bts-trx/scheduler_trx.c
index 56483f3..5a24dda 100644
--- a/src/osmo-bts-trx/scheduler_trx.c
+++ b/src/osmo-bts-trx/scheduler_trx.c
@@ -816,8 +816,13 @@
 	l1sap.u.rach_ind.rssi = bi->rssi;
 	l1sap.u.rach_ind.fn = bi->fn;
 
-	/* FIXME: 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;
+	/* Link quality defined by C/I (Carrier-to-Interference ratio),
+	 * which has optional presence. If it's absent, simulate the
+	 * minimum acceptable value to pass L1SAP checks. */
+	if (bi->flags & TRX_BI_F_CI_CB)
+		l1sap.u.rach_ind.lqual_cb = bi->ci_cb;
+	else
+		l1sap.u.rach_ind.lqual_cb = l1t->trx->bts->min_qual_rach;
 
 	/* Decode RACH depending on its synch. sequence */
 	switch (synch_seq) {

-- 
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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Change-Id: I8d86dec7ebc039cbfd038c4342ff328b11281865
Gerrit-Change-Number: 14688
Gerrit-PatchSet: 1
Gerrit-Owner: fixeria <axilirator at gmail.com>
Gerrit-MessageType: newchange
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