SGSN_Tests: add RIM ROUTING ADDRESS field in request

When sending the RAN INFORMATION REQUEST on GTP-C, we do not add a RIM
ROUTING ADDRESS + RIM ROUTING ADDRESS DISCRIMINATOR field. Those fields
are optional but commonly added so that the SGSN does not have to
disassemble the RAN TRANSPARENT CONTAINTER to know the destination
address.

see also: 3gpp TS 29.060, section 7.5.14 and
          3GPP TS 23.060, section 8.1.5.2.2

Change-Id: Id944c66f28d787a18c6c6f7c9dc885997d83e94c
Related: OS#6095
---
M sgsn/SGSN_Tests.ttcn
1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index ac25caa..4af44ee 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -3478,6 +3478,8 @@
 	var template (value) RIM_Routing_Address_GTPC gtpc_dst_addr, gtpc_src_addr;
 	var template (value) RAN_Information_Request_RIM_Container_GTPC gtpc_rim_req_cont;
 	var template (value) PDU_BSSGP_RAN_INFORMATION_REQUEST_GTPC gtpc_bssgp_cont;
+	var template (value) RIM_RoutingAddress gtpc_rim_ra;
+	var template (value) RIM_RoutingAddress_Discriminator gtpc_rim_ra_discr;
 	var template (value) Gtp1cUnitdata gtpc_pdu;
 
 	gtpc_dst_addr := t_GTPC_RIM_Routing_Address_cid(gtp_ci);
@@ -3492,7 +3494,12 @@
 	gtpc_bssgp_cont := ts_GTPC_RAN_Information_Request(ts_GTPC_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, gtpc_dst_addr),
 							   ts_GTPC_RIM_Routing_Information(RIM_ADDR_EUTRAN_NODEB_ID, gtpc_src_addr),
 							   gtpc_rim_req_cont);
-	gtpc_pdu := ts_GTPC_RANInfoRelay(peer, ts_RANTransparentContainer_RAN_INFO_REQ(gtpc_bssgp_cont));
+
+	/* Assemble RIM Routing Address (essentially a copy of the destination cell identifier)*/
+	gtpc_rim_ra := ts_RIM_RoutingAddress(enc_RIM_Routing_Address_GTPC(valueof(gtpc_dst_addr)));
+	gtpc_rim_ra_discr := ts_RIM_RoutingAddress_Discriminator(hex2bit(RIM_ADDR_GERAN_CELL_ID));
+	gtpc_pdu := ts_GTPC_RANInfoRelay(peer, ts_RANTransparentContainer_RAN_INFO_REQ(gtpc_bssgp_cont),
+					 gtpc_rim_ra, gtpc_rim_ra_discr);
 	GTPC.send(gtpc_pdu);
 
 	var template RIM_Routing_Address bssgp_dst_addr, bssgp_src_addr;

