Change in osmo-bsc[master]: handover_decision_2.c: add is_low_rxlev()

neels gerrit-no-reply at lists.osmocom.org
Tue Jun 29 20:24:28 UTC 2021


neels has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bsc/+/24805 )


Change subject: handover_decision_2.c: add is_low_rxlev()
......................................................................

handover_decision_2.c: add is_low_rxlev()

Remove code dup. Also this will be used another time by an upcoming
patch.

Change-Id: I4aaeb8bc35a142962ac8ca6401a76b0733f7979e
---
M src/osmo-bsc/handover_decision_2.c
1 file changed, 9 insertions(+), 5 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/05/24805/1

diff --git a/src/osmo-bsc/handover_decision_2.c b/src/osmo-bsc/handover_decision_2.c
index d4ebc41..97c8b6e 100644
--- a/src/osmo-bsc/handover_decision_2.c
+++ b/src/osmo-bsc/handover_decision_2.c
@@ -250,6 +250,12 @@
 				ho_get_hodec2_rxlev_avg_win(bts->ho));
 }
 
+static bool is_low_rxlev(int rxlev_current, struct handover_cfg *neigh_cfg)
+{
+	return rxlev_current >= 0
+		&& rxlev2dbm(rxlev_current) < ho_get_hodec2_min_rxlev(neigh_cfg);
+}
+
 /* obtain averaged rxlev for given neighbor */
 static int neigh_meas_avg(struct neigh_meas_proc *nmp, int window)
 {
@@ -1069,7 +1075,6 @@
 		.bsic = nmp->bsic,
 	};
 	struct ho_candidate c;
-	int min_rxlev;
 	struct handover_cfg *neigh_cfg;
 
 	/* skip empty slots */
@@ -1137,12 +1142,11 @@
 
 	/* if the minimum level is not reached.
 	 * In case of a remote-BSS, use the current BTS' configuration. */
-	min_rxlev = ho_get_hodec2_min_rxlev(neigh_cfg);
-	if (rxlev2dbm(c.target.rxlev) < min_rxlev) {
+	if (is_low_rxlev(c.target.rxlev, neigh_cfg)) {
 		LOGPHOCAND(&c, LOGL_DEBUG,
 			   "Not a candidate, because RX level (%d dBm) is lower"
 			   " than the minimum required RX level (%d dBm)\n",
-			   rxlev2dbm(c.target.rxlev), min_rxlev);
+			   rxlev2dbm(c.target.rxlev), ho_get_hodec2_min_rxlev(neigh_cfg));
 		return;
 	}
 
@@ -1505,7 +1509,7 @@
 	}
 
 	/* Low Level */
-	if (av_rxlev >= 0 && rxlev2dbm(av_rxlev) < ho_get_hodec2_min_rxlev(bts->ho)) {
+	if (is_low_rxlev(av_rxlev, bts->ho)) {
 		global_ho_reason = HO_REASON_LOW_RXLEVEL;
 		LOGPHOLCHAN(lchan, LOGL_NOTICE, "RX level is TOO LOW: %d < %d\n",
 			    rxlev2dbm(av_rxlev), ho_get_hodec2_min_rxlev(bts->ho));

-- 
To view, visit https://gerrit.osmocom.org/c/osmo-bsc/+/24805
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Gerrit-Project: osmo-bsc
Gerrit-Branch: master
Gerrit-Change-Id: I4aaeb8bc35a142962ac8ca6401a76b0733f7979e
Gerrit-Change-Number: 24805
Gerrit-PatchSet: 1
Gerrit-Owner: neels <nhofmeyr at sysmocom.de>
Gerrit-MessageType: newchange
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