bts/BTS_Tests.ttcn: update TC_rach_max_ta test case
Since the I662294fe3136cf7a259be13816a3e63f7db9a948, OsmoBTS
should pass RACH requests with ToA > -2 symbol periods only.
We do allow early signal arrival up to 2 symbols, otherwise
it is most likely noise, interference or a ghost.
Change-Id: Icccc88545ed3aabd6da28a40599a8a77d1de477d
diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index e0e8ac4..e98a8ca 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -669,7 +669,9 @@
/* default max-ta is 63 (full range of GSM timing advance */
- /* negative TA must not happen */
+ /* We allow early arrival up to 2 symbols */
+ f_rach_toffs(-1*256, true);
+ f_rach_toffs(-2*256, true);
f_rach_toffs(-10*256, false);
/* 0 / 32 / 63 bits is legal / permitted */