pcu: Introduce test TC_ul_tbf_bsn_wraparound_gprs
Related: OS#6102
Change-Id: I253e3607b75dd1a850c53f284fadf753dd49c247
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index 2598e7b..c360e97 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -3596,6 +3596,159 @@
f_TC_ul_tbf_reestablish_with_pkt_dl_ack_nack(true);
}
+/* Test UL data blocks BSN 0..127 and then continue again at BSN 0... up to 300
+ * BSNs in total to test several wrap arounds. */
+testcase TC_ul_tbf_bsn_wraparound_gprs() runs on RAW_PCU_Test_CT
+{
+ var PCUIF_info_ind info_ind;
+ var RlcmacDlBlock dl_block;
+ var octetstring payload;
+ var template (value) RlcmacUlBlock ul_data;
+ var template (value) LlcBlockHdr blk_hdr;
+ var template (value) LlcBlocks blocks;
+ 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;
+ var integer blocks_sent := 0;
+ var integer blocks_received := 0;
+ const integer target_bsn_set := 300;
+
+ /* 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));
+ 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);
+
+ /* Wait until PCU starts requesting for UL block on this TBF: */
+ dl_fn := f_ms_wait_usf(ms);
+ sched_fn := f_next_pdch_block(dl_fn);
+
+ /* Send one UL block (with TLLI since we are in One-Phase Access
+ contention resolution) and make sure it is ACKED fine. */
+ payload := f_rnd_octstring(16); /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */
+ blk_hdr := t_RLCMAC_LLCBLOCK_HDR(length_ind := lengthof(payload),
+ more := false, e := true);
+ blocks := { t_RLCMAC_LLCBLOCK(payload, blk_hdr) };
+ /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */
+ ul_data := t_RLCMAC_UL_DATA_TLLI(cs := ms.ul_tbf.tx_cs_mcs,
+ tfi := ms.ul_tbf.tfi,
+ cv := 15,
+ bsn := ms.ul_tbf.bsn,
+ blocks := blocks,
+ tlli := ms.tlli);
+ f_ultbf_inc_bsn(ms.ul_tbf);
+ f_ms_tx_ul_block(ms, ul_data, f_next_pdch_block(sched_fn));
+ blocks_sent := blocks_sent + 1;
+
+ /* 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 := '0'B)))
+ f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn, acknack_tmpl);
+
+ ul_data := t_RLCMAC_UL_DATA(cs := ms.ul_tbf.tx_cs_mcs,
+ tfi := ms.ul_tbf.tfi,
+ cv := 15,
+ bsn := ms.ul_tbf.bsn,
+ blocks := blocks);
+
+ nr := f_ms_tx_TsTrxBtsNum(ms);
+ 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 {
+ [] 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_ACK_NACK_GPRS)) -> value data_msg {
+
+ if (f_dl_block_rrbp_valid(data_msg.dl_block)) {
+ var uint32_t ack_fn := f_dl_block_ack_fn(data_msg.dl_block, data_msg.raw.fn)
+ log("ACKING FN ", data_msg.raw.fn, " on FN ", ack_fn);
+ f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), ack_fn);
+ }
+ ul_data.data.mac_hdr.bsn := ms.ul_tbf.bsn;
+ f_ms_tx_ul_block(ms, ul_data, 0);
+ f_ultbf_inc_bsn(ms.ul_tbf);
+ blocks_sent := blocks_sent + 1;
+
+ if (blocks_sent == target_bsn_set) {
+ break;
+ }
+
+ nr := f_ms_tx_TsTrxBtsNum(ms);
+ 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;
+ }
+ [] 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_DL_DUMMY_CTRL)) -> value data_msg {
+
+ ul_data.data.mac_hdr.bsn := ms.ul_tbf.bsn;
+ f_ms_tx_ul_block(ms, ul_data, 0);
+ f_ultbf_inc_bsn(ms.ul_tbf);
+ blocks_sent := blocks_sent + 1;
+
+ if (blocks_sent == target_bsn_set) {
+ break;
+ }
+
+ nr := f_ms_tx_TsTrxBtsNum(ms);
+ 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;
+ }
+ [] 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 {
+ nr := f_ms_tx_TsTrxBtsNum(ms);
+ 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;
+ }
+ [] BTS.receive {
+ setverdict(fail, "Unexpected BTS message");
+ f_shutdown(__BFILE__, __LINE__);
+ }
+ [] BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)) {
+ blocks_received := blocks_received + 1;
+ repeat;
+ }
+ }
+
+ /* Validate most part of them were accepted and forwarded: */
+ if (blocks_received < target_bsn_set * 95 / 100) {
+ setverdict(fail, "Forwarded ", blocks_received, " out of ", target_bsn_set, " transmitted");
+ f_shutdown(__BFILE__, __LINE__);
+ }
+ log("Forwarded ", blocks_received, " out of ", target_bsn_set, " transmitted");
+
+ 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.
@@ -7258,6 +7411,7 @@
execute( TC_ul_flow_multiple_llc_blocks() );
execute( TC_dl_no_ack_retrans_imm_ass() );
execute( TC_dl_llc_sapi_priority() );
+ execute( TC_ul_tbf_bsn_wraparound_gprs());
execute( TC_paging_cs_from_bts() );
execute( TC_paging_cs_from_sgsn_sign_ptmsi() );
execute( TC_paging_cs_from_sgsn_sign() );
diff --git a/pcu/expected-results.xml b/pcu/expected-results.xml
index cdc4aec..eccff6f 100644
--- a/pcu/expected-results.xml
+++ b/pcu/expected-results.xml
@@ -55,6 +55,7 @@
<testcase classname='PCU_Tests' name='TC_ul_flow_multiple_llc_blocks' time='MASKED'/>
<testcase classname='PCU_Tests' name='TC_dl_no_ack_retrans_imm_ass' time='MASKED'/>
<testcase classname='PCU_Tests' name='TC_dl_llc_sapi_priority' time='MASKED'/>
+ <testcase classname='PCU_Tests' name='TC_ul_tbf_bsn_wraparound_gprs' time='MASKED'/>
<testcase classname='PCU_Tests' name='TC_paging_cs_from_bts' time='MASKED'/>
<testcase classname='PCU_Tests' name='TC_paging_cs_from_sgsn_sign_ptmsi' time='MASKED'/>
<testcase classname='PCU_Tests' name='TC_paging_cs_from_sgsn_sign' time='MASKED'/>