GSM_Types: Add function to compute request reference from RA + FN
diff --git a/sysinfo/GSM_Types.ttcn b/sysinfo/GSM_Types.ttcn
index 98f6dd5..4529371 100644
--- a/sysinfo/GSM_Types.ttcn
+++ b/sysinfo/GSM_Types.ttcn
@@ -303,9 +303,25 @@
bitstring ra length(8),
uint5_t t1p,
uint6_t t3,
- uint5_t t1
+ uint5_t t2
} with { variant "" };
+ template RequestReference t_RequestReference(template bitstring ra, template uint5_t t1p, template uint6_t t3, template uint5_t t2) := {
+ ra := ra,
+ t1p := t1p,
+ t3 := t3,
+ t2 := t2
+ }
+
+ /* compute the expected request reference for given RA + FN */
+ function f_compute_ReqRef(uint8_t ra, GsmFrameNumber fn) return RequestReference {
+ var RequestReference req_ref := { ra := int2bit(ra, 8) };
+ req_ref.t1p := (fn / 1326) mod 32;
+ req_ref.t2 := fn mod 26;
+ req_ref.t3 := fn mod 51;
+ return req_ref
+ }
+
/* 10.5.2.40 */
type integer TimingAdvance (0..219);