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'/> -- To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/29906 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-ttcn3-hacks Gerrit-Branch: master Gerrit-Change-Id: Id99b048e7c305fe616bb54437313a1e45449ff57 Gerrit-Change-Number: 29906 Gerrit-PatchSet: 1 Gerrit-Owner: pespin &lt;pespin(a)sysmocom.de&gt; Gerrit-MessageType: newchange