ttcn3
/
osmo-ttcn3-hacks
mirror of https://gerrit.osmocom.org/osmo-ttcn3-hacks
10
0
Fork 1
Code Issues Releases Wiki Activity

pcu: Introduce test TC_ul_tbf_reestablish_with_pkt_resource_req_n3105_max 

Change-Id: I3a50445c707430900c78623c7093ff7eb1f3ed95
This commit is contained in:
Pau Espin 2021-10-15 14:52:22 +02:00 committed by pespin
parent 332aba85b0
commit d658f345f6
1 changed files with 136 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

136
pcu/PCU_Tests.ttcn
View File

@ -3097,6 +3097,141 @@ testcase TC_ul_tbf_reestablish_with_pkt_resource_req() runs on RAW_PCU_Test_CT {
f_shutdown(__BFILE__, __LINE__, final := true);
}
/* Test scenario where MS wants to request a new TBF once the current one is
* ending, by means of sending a Packet Resource Request on ul slot provided by
* last Pkt Ul ACK's RRBP. new Pkt Ul Ass is never confirmed by the MS in this test.
* See 3GPP TS 44.060 sec 9.3.2.4.2 "Non-extended uplink TBF mode" */
testcase TC_ul_tbf_reestablish_with_pkt_resource_req_n3105_max() runs on RAW_PCU_Test_CT {
var PCUIF_info_ind info_ind;
var RlcmacDlBlock dl_block;
var octetstring data := f_rnd_octstring(10);
var uint32_t sched_fn;
var uint32_t dl_fn;
var template (value) TsTrxBtsNum nr;
var BTS_PDTCH_Block data_msg;
var template RlcmacDlBlock acknack_tmpl;
var GprsMS ms;
const integer N3105_MAX := 2;
var integer N3105 := 0;
timer T_3195 := 1.0 + 0.5; /* 0.5: extra offset since we cannot match exactly */
/* 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 */
info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS));
/* Speedup test: */
info_ind.n3105 := N3105_MAX;
info_ind.t3195 := 1;
f_init_raw(testcasename(), info_ind);
/* 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 */
f_ms_tx_ul_data_block_multi(ms, 1, with_tlli := true, fn := ms.ul_tbf.start_time_fn);
/* UL block should be received in SGSN */
BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id));
acknack_tmpl := tr_RLCMAC_UL_ACK_NACK_GPRS(ms.ul_tbf.tfi,
tr_UlAckNackGprs(ms.tlli,
tr_AckNackDescription(final_ack := '1'B),
tr_UlAckNackGprsAdditionsRel99(tbf_est := true)))
f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn, acknack_tmpl);
/* TODO: verify TBF_EST and FinalACK are both '1' above */
/* Send PACKET RESOURCE REQUEST to request a new UL TBF */
f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, omit)), sched_fn);
/* Now Keep ignoring the Pkt Ul Ass on PACCH: */
/* Now we go on receiving DL data and not answering RRBP: */
nr := ts_TsTrxBtsNum;
BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr,
sapi := PCU_IF_SAPI_PDTCH, fn := 0,
arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)),
block_nr := nr.blk_nr));
alt {
[not T_3195.running] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr,
tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH),
tr_RLCMAC_UL_PACKET_ASS)) -> value data_msg {
if (f_dl_block_rrbp_valid(data_msg.dl_block)) {
log("Ignoring RRBP N3105 ", N3105);
N3105 := N3105 + 1;
}
nr := ts_TsTrxBtsNum;
BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr,
sapi := PCU_IF_SAPI_PDTCH, fn := 0,
arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)),
block_nr := nr.blk_nr));
repeat;
}
/* At this point in time (N3105_MAX reached), PCU already moved TBF to
* RELEASE state so no data for it is tx'ed, hence the dummy blocks:
*/
[N3105 == N3105_MAX] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr,
tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH),
tr_RLCMAC_DUMMY_CTRL)) -> value data_msg {
if (not T_3195.running) {
T_3195.start;
}
nr := ts_TsTrxBtsNum;
BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr,
sapi := PCU_IF_SAPI_PDTCH, fn := 0,
arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)),
block_nr := nr.blk_nr));
repeat;
}
[N3105 == N3105_MAX] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr,
tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH),
omit)) -> value data_msg {
/* We may already receive idle blocks before our own TTCN3 timer
* triggers due to the TBF being released. Keep going until our T_3195 triggers. */
nr := ts_TsTrxBtsNum;
BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr,
sapi := PCU_IF_SAPI_PDTCH, fn := 0,
arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)),
block_nr := nr.blk_nr));
repeat;
}
/* We receive Dummy blocks in between Pkt Ul Ass while PCU waits for us to ack it */
[not T_3195.running] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr,
tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH),
tr_RLCMAC_DUMMY_CTRL)) -> value data_msg {
log("Ignoring Dummy block FN ", data_msg.raw.fn);
nr := ts_TsTrxBtsNum;
BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr,
sapi := PCU_IF_SAPI_PDTCH, fn := 0,
arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)),
block_nr := nr.blk_nr));
repeat;
}
[T_3195.running] T_3195.timeout {
log("T_3195 timeout");
/* Done in alt, wait for pending RTS initiated previously in
* above case before continuing (expect nothing to be sent since there's no active TBF): */
BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr,
tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH),
omit));
}
[] BTS.receive {
setverdict(fail, "Unexpected BTS message");
f_shutdown(__BFILE__, __LINE__);
}
}
f_shutdown(__BFILE__, __LINE__, final := true);
}
/* Test CS paging over the BTS<->PCU socket.
* When a (class B or C, not A) MS has an active TBF (or is on the PDCH), the MS can not react on CS paging over CCCH.
* Paging should be send on the PACCH.
@ -6288,6 +6423,7 @@ control {
execute( TC_dl_multislot_tbf_ms_class_from_2phase() );
execute( TC_ul_multislot_tbf_ms_class_from_2phase() );
execute( TC_ul_tbf_reestablish_with_pkt_resource_req() );
execute( TC_ul_tbf_reestablish_with_pkt_resource_req_n3105_max() );
execute( TC_multiplex_dl_gprs_egprs() );