pespin has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/29906 )
Change subject: pcu: Introduce test TC_ul_tbf_finished_pkt_dl_ass_pch
......................................................................
pcu: Introduce test TC_ul_tbf_finished_pkt_dl_ass_pch
Related: OS#5700
Change-Id: Id99b048e7c305fe616bb54437313a1e45449ff57
---
M pcu/GPRS_Components.ttcn
M pcu/PCU_Tests.ttcn
M pcu/expected-results.xml
3 files changed, 65 insertions(+), 1 deletion(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/06/29906/1
diff --git a/pcu/GPRS_Components.ttcn b/pcu/GPRS_Components.ttcn
index f9a39a6..e248860 100644
--- a/pcu/GPRS_Components.ttcn
+++ b/pcu/GPRS_Components.ttcn
@@ -1189,7 +1189,7 @@
function f_rx_rlcmac_dl_block_exp_dummy(out RlcmacDlBlock dl_block,
template (value) TsTrxBtsNum nr :=
ts_TsTrxBtsNum)
-runs on MS_BTS_IFACE_CT {
+runs on MS_BTS_IFACE_CT return uint32_t {
var uint32_t dl_fn;
f_rx_rlcmac_dl_block(dl_block, dl_fn, nr := nr);
@@ -1197,6 +1197,7 @@
setverdict(fail, "Failed to match Packet DUMMY DL");
f_shutdown(__BFILE__, __LINE__);
}
+ return dl_fn;
}
function f_rx_rlcmac_dl_block_exp_pkt_pag_req(out RlcmacDlBlock dl_block,
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index 1648a92..a85e720 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -3907,6 +3907,66 @@
f_tc_dl_data_no_llc_ui_dummy(bssgp_ms_racap_egprs_def);
}
+/* Scenario: MS creates one phase access, does contention resolution CV>0 and
+ * finishes sending data (CV=0), which is forwarded to SGSN by PCU. PCU acks
with
+ * FINAL_ACK=1 (hence UL TBF moves to FINISHED state). Then SGSN answers and
PCU
+ * has to assign a DL TBF (through PCH because of FINISHED state, TS 44.060
9.3.3.3.2).
+ * Make sure the assignment is not done until we receive the PKT CTRL ACK from
the MS
+ * (at that time we know the MS is listening on PCH again). OS#5700.
+ */
+testcase TC_ul_tbf_finished_pkt_dl_ass_pch() runs on RAW_PCU_Test_CT {
+ var octetstring ra_id :=
enc_RoutingAreaIdentification(mp_gb_cfg.bvc[0].cell_id.ra_id);
+ var BTS_PDTCH_Block data_msg;
+ var RlcmacDlBlock dl_block;
+ var octetstring data := f_rnd_octstring(10);
+ var uint32_t sched_fn;
+ var uint32_t dl_fn;
+ var GprsMS ms;
+ timer T;
+ var octetstring payload;
+
+ /* Initialize NS/BSSGP side */
+ f_init_bssgp();
+ /* Initialize GPRS MS side */
+ f_init_gprs_ms();
+ ms := g_ms[0]; /* We only use first MS in this test */
+
+ /* Initialize the PCU interface abstraction */
+ f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS));
+
+ /* Establish BSSGP connection to the PCU */
+ f_bssgp_establish();
+ f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli);
+
+ /* Establish an Uplink TBF */
+ f_ms_establish_ul_tbf(ms);
+
+ /* Send one UL block (with TLLI since we are in One-Phase Access
+ contention resoultion) and make sure it is ACKED fine. */
+ payload := f_rnd_octstring(f_ultbf_payload_fill_length(ms.ul_tbf,
true));
+ dl_fn := f_rx_rlcmac_dl_block_exp_dummy(dl_block);
+ f_ms_tx_ul_data_block(ms, payload, cv := 1, with_tlli := true, fn :=
f_next_pdch_block(dl_fn));
+
+ f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn);
+ payload := f_rnd_octstring(f_ultbf_payload_fill_length(ms.ul_tbf,
false));
+ f_ms_tx_ul_data_block(ms, payload, cv := 0);
+ f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn);
+
+ /* 1 UL block should be received in SGSN */
+ BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id));
+ /* Now SGSN sends some DL data, PCU will page on CCCH (PCH) */
+ BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data));
+
+ /* UL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */
+ f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn);
+ f_ms_exp_dl_tbf_ass_ccch(ms, PCU_IF_SAPI_PCH);
+ /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */
+ f_sleep(X2002);
+ f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0);
+
+ f_shutdown(__BFILE__, __LINE__, final := true);
+}
+
private function f_TC_egprs_pkt_chan_req(in EGPRSPktChRequest req,
template GsmRrMessage t_imm_ass := ?,
PCUIF_BurstType bt := BURST_TYPE_1)
@@ -6841,6 +6901,8 @@
execute( TC_dl_gprs_data_no_llc_ui_dummy() );
execute( TC_dl_egprs_data_no_llc_ui_dummy() );
+ execute( TC_ul_tbf_finished_pkt_dl_ass_pch() );
+
/* EGPRS specific test cases */
execute( TC_egprs_pkt_chan_req_signalling() );
execute( TC_egprs_pkt_chan_req_one_phase() );
diff --git a/pcu/expected-results.xml b/pcu/expected-results.xml
index 7f138cd..c666ff7 100644
--- a/pcu/expected-results.xml
+++ b/pcu/expected-results.xml
@@ -70,6 +70,7 @@
<testcase classname='PCU_Tests'
name='TC_bssgp_dl_unitdata_with_invalid_imsi' time='MASKED'/>
<testcase classname='PCU_Tests' name='TC_dl_gprs_data_no_llc_ui_dummy'
time='MASKED'/>
<testcase classname='PCU_Tests' name='TC_dl_egprs_data_no_llc_ui_dummy'
time='MASKED'/>
+ <testcase classname='PCU_Tests' name='TC_ul_tbf_finished_pkt_dl_ass_pch'
time='MASKED'/>
<testcase classname='PCU_Tests' name='TC_egprs_pkt_chan_req_signalling'
time='MASKED'/>
<testcase classname='PCU_Tests' name='TC_egprs_pkt_chan_req_one_phase'
time='MASKED'/>
<testcase classname='PCU_Tests' name='TC_egprs_pkt_chan_req_two_phase'
time='MASKED'/>
--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Id99b048e7c305fe616bb54437313a1e45449ff57
Gerrit-Change-Number: 29906
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <[email protected]>
Gerrit-MessageType: newchange
