lynxis lazus has uploaded this change for review.

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SGSN: add paging a whole routing area with multiple cells

1. Attach + PDP Request
2. Wait for UE to be in Standby
3. Transmit to GTP Userdata
4. See the Paging on 2 BVCIs within the Routing Area

Change-Id: I88dc95669d57278a96e05ec84f934ebf70b319e5
---
M sgsn/SGSN_Tests.ttcn
1 file changed, 51 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/96/37796/1

diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index fe4b086..ecdd778 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -2603,6 +2603,56 @@
 	f_cleanup();
 }
 
+/*
+ * Wait for T3314 expiration and check that PS PAGING is created on DL PDU
+ * Use a Routing Area with 2 cells and expect paging on both cells.
+ *
+ * MS   <-> SGSN: Attach Procedure
+ * MS   <-> SGSN: PDP Context Request/Response
+ * MS       SGSN: Timeout of T3314, MS location known only on Routing Area precision
+ * GGSN  -> SGSN: User Data
+ * MS   <-- SGSN: Paging PS all BVCI within the Routing Area
+ */
+private function f_TC_paging_ps_ra_multiple_cells(charstring id) runs on BSSGP_ConnHdlr {
+	var PdpActPars apars := valueof(t_PdpActPars(mp_ggsn_ip));
+	var default d;
+
+	f_bssgp_client_unregister(g_pars.imsi, BSSGP_PROC[0]);
+	f_bssgp_client_register(g_pars.imsi, g_pars.tlli, BSSGP_PROC[1]);
+	f_bssgp_client_register(g_pars.imsi, g_pars.tlli, BSSGP_PROC[2]);
+
+	/* first perform regular attach */
+	f_gmm_attach(false, false, ran_index := 1);
+	/* then activate PDP context */
+	f_pdp_ctx_act(apars, ran_index := 1);
+
+	/* do a RAU to second BVCI */
+	/* then transceive a downlink PDU */
+	f_gtpu_xceive_mt(apars, f_rnd_octstring(100), ran_index := 1);
+
+	/* now wait for T3314 expiration (test_CT below has reduced it to 3s) */
+	f_sleep(5.0);
+
+	/* now data should be flowing again, but with PS PAGING */
+	f_gtpu_xceive_mt(apars, f_rnd_octstring(100), ran_index := 1);
+	BSSGP_SIG[1].receive(tr_BSSGP_PS_PAGING(?));
+	BSSGP_SIG[2].receive(tr_BSSGP_PS_PAGING(?));
+
+	/* FIXME: simulate paging response */
+	/* FIXME: verify PDU actually arrives only after paging response was successful */
+}
+
+testcase TC_paging_ps_ra_multiple_cells() runs on test_CT {
+	var BSSGP_ConnHdlr vc_conn;
+	f_init();
+	f_vty_config(SGSNVTY, "sgsn", "timer 3314 3");
+	f_sleep(1.0);
+	vc_conn := f_start_handler(refers(f_TC_paging_ps_ra_multiple_cells), testcasename(), g_gb, 52);
+	vc_conn.done;
+	f_vty_config(SGSNVTY, "sgsn", "timer 3314 default");
+	f_cleanup();
+}
+
 /* Run a RIM single report procedure over the sgsn. Since the SGSN will only do a transparent routing of the
  * RIM messages this basically tests if the message is correctly transfered from one GB interface to the
  * other and vice versa. */
@@ -3168,6 +3218,7 @@
 	execute( TC_suspend_resume() );
 	execute( TC_suspend_rau() );
 	execute( TC_paging_ps() );
+	execute( TC_paging_ps_ra_multiple_cells() );
 
 	execute( TC_bssgp_rim_single_report() );
 	execute( TC_rim_eutran_to_geran() );

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