Change in osmocom-bb[master]: trxcon/l1ctl.c: fix: handle ARFCN from L1CTL_DM_EST_REQ

[Vadim Yanitskiy]

Vadim Yanitskiy has uploaded this change for review. ( https://gerrit.osmocom.org/10783


Change subject: trxcon/l1ctl.c: fix: handle ARFCN from L1CTL_DM_EST_REQ
......................................................................

trxcon/l1ctl.c: fix: handle ARFCN from L1CTL_DM_EST_REQ

A BSC may allocate a dedicated channel on any ARFCN, not necessary
on the same one where a mobile station has requested this channel.

For some reason, the ARFCN info of L1CTL_DM_EST_REQ message was
not handled by trxcon. Let's fix this.

Related: OS#3526
Change-Id: I16ed5c64236c159bfa39002b05094c1f6c171f6b
---
M src/host/trxcon/l1ctl.c
1 file changed, 10 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/83/10783/1

diff --git a/src/host/trxcon/l1ctl.c b/src/host/trxcon/l1ctl.c
index 0efd0be..09d90a1 100644
--- a/src/host/trxcon/l1ctl.c
+++ b/src/host/trxcon/l1ctl.c
@@ -554,6 +554,16 @@
 		goto exit;
 	}
 
+	/* Only if the current ARFCN differs */
+	if (l1l->trx->band_arfcn != band_arfcn) {
+		/* Update current ARFCN */
+		l1l->trx->band_arfcn = band_arfcn;
+
+		/* Tune transceiver to required ARFCN */
+		trx_if_cmd_rxtune(l1l->trx, band_arfcn);
+		trx_if_cmd_txtune(l1l->trx, band_arfcn);
+	}
+
 	/* Update TSC (Training Sequence Code) */
 	l1l->trx->tsc = est_req->tsc;
 

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Gerrit-Project: osmocom-bb
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I16ed5c64236c159bfa39002b05094c1f6c171f6b
Gerrit-Change-Number: 10783
Gerrit-PatchSet: 1
Gerrit-Owner: Vadim Yanitskiy <axilirator at gmail.com>
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