jolly has uploaded this change for review.

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Do not generate 'bit map 0' neighbor lists with R-GSM ARFCN

Before this patch, neighbor cells with ARFCN 955 to 974 were ignored in
the GSM 900 band. This resulted an empty 'bit map 0' list in SI2/SI5
messages.

This patch includes R-GSM ARFCN in range 955 to 974. A different encoding
is chosen, if neigboring cells fall within this range.

Change-Id: I40d024290fa4be2ba8d3149ec841b182d0cc8c1f
---
M src/osmo-bsc/system_information.c
1 file changed, 18 insertions(+), 2 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/02/34602/1

diff --git a/src/osmo-bsc/system_information.c b/src/osmo-bsc/system_information.c
index 799028e..94205aa 100644
--- a/src/osmo-bsc/system_information.c
+++ b/src/osmo-bsc/system_information.c
@@ -545,8 +545,8 @@
 	/* Check presence of E-GSM ARFCN 0 */
 	if (pgsm && bitvec_get_bit_pos(bv, 0) == ONE)
 		pgsm = false;
-	/* Check presence of E-GSM ARFCNs 975..1023 */
-	for (i = 975; pgsm && i <= 1023; i++) {
+	/* Check presence of R-GSM / E-GSM ARFCNs 955..1023 */
+	for (i = 955; pgsm && i <= 1023; i++) {
 		if (bitvec_get_bit_pos(bv, i) == ONE)
 			pgsm = false;
 	}

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