pcu: Introduce test TC_mo_ping_pong
Ideally some more checks should be done on this test at the end, but it's fine keeping it as it is for now and can be extended later. Change-Id: I3be5123ff5294e5851652ec14d54589442082b28
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@ -571,6 +571,22 @@ runs on RAW_PCU_Test_CT return boolean {
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return true;
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return true;
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}
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}
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private function f_imm_ass_verify_dl_tbf_ass(GsmRrMessage rr_imm_ass, out PacketDlAssign dl_tbf_ass)
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runs on RAW_PCU_Test_CT return boolean {
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/* Make sure we received a DL TBF Assignment */
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if (match(rr_imm_ass, tr_IMM_TBF_ASS(dl := true, rest := tr_IaRestOctets_DLAss(?)))) {
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dl_tbf_ass := rr_imm_ass.payload.imm_ass.rest_octets.hh.pa.uldl.ass.dl;
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log("Rx Downlink TBF assignment: ", dl_tbf_ass);
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setverdict(pass);
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} else {
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setverdict(fail, "Failed to match DL TBF Assignment");
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return false;
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}
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return true;
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}
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/* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */
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/* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */
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private function f_pcuif_tx_data_ind(octetstring data, int16_t lqual_cb := 0)
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private function f_pcuif_tx_data_ind(octetstring data, int16_t lqual_cb := 0)
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runs on RAW_PCU_Test_CT {
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runs on RAW_PCU_Test_CT {
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@ -591,6 +607,24 @@ runs on RAW_PCU_Test_CT {
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sapi := PCU_IF_SAPI_PDTCH)) -> value pcu_msg;
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sapi := PCU_IF_SAPI_PDTCH)) -> value pcu_msg;
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}
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}
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/* Expect an Immediate Assignment (paging) from PCU on PCUIF on specified sapi. */
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private function f_pcuif_rx_pch_imm_tbf_ass(out GsmRrMessage rr_imm_ass)
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runs on RAW_PCU_Test_CT {
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var PCUIF_Message pcu_msg;
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var octetstring macblock;
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BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 0,
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sapi := PCU_IF_SAPI_PCH)) -> value pcu_msg;
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/* First 3 bytes contain paging group: */
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macblock := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3);
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rr_imm_ass := dec_GsmRrMessage(macblock);
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if (not match(rr_imm_ass, tr_IMM_TBF_ASS())) {
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setverdict(fail, "Failed to match Immediate Assignment: ", rr_imm_ass);
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mtc.stop;
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}
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BTS.send(ts_PCUIF_DATA_CNF(bts_nr := 0, trx_nr := 0, ts_nr := 0, block_nr := 0,
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fn := 0, arfcn := 871, sapi := PCU_IF_SAPI_PCH, data := macblock));
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}
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private function f_tx_rlcmac_ul_block(template (value) RlcmacUlBlock ul_data, int16_t lqual_cb := 0)
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private function f_tx_rlcmac_ul_block(template (value) RlcmacUlBlock ul_data, int16_t lqual_cb := 0)
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runs on RAW_PCU_Test_CT {
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runs on RAW_PCU_Test_CT {
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var octetstring data;
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var octetstring data;
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@ -1053,6 +1087,60 @@ testcase TC_t3169() runs on RAW_PCU_Test_CT {
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f_rx_rlcmac_dl_block_exp_dummy(dl_block);
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f_rx_rlcmac_dl_block_exp_dummy(dl_block);
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}
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}
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/* Test scenario where MS wants to send some data on PDCH against SGSN and it is
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* answered, so TBFs for uplink and later for downlink are created.
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*/
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testcase TC_mo_ping_pong() runs on RAW_PCU_Test_CT {
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var GsmRrMessage rr_imm_ass;
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var PacketUlAssign ul_tbf_ass;
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var PacketDlAssign dl_tbf_ass;
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var RlcmacDlBlock dl_block;
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var PCUIF_Message pcu_msg;
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var octetstring data;
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var boolean ok;
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var OCT4 tlli := '00000001'O;
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/* Initialize NS/BSSGP side */
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f_init_bssgp();
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/* Initialize the PCU interface abstraction */
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f_init_raw(testcasename());
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/* Establish BSSGP connection to the PCU */
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f_bssgp_establish();
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f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli);
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/* Establish an Uplink TBF */
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ok := f_establish_tbf(rr_imm_ass);
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if (not ok) {
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setverdict(fail, "Failed to establish TBF");
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mtc.stop;
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}
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ok := f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass);
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if (not ok) {
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setverdict(fail, "Immediate Assignment not an Uplink TBF");
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mtc.stop;
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}
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/* Send one UL block and make sure it is ACKED fine */
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f_tx_rlcmac_ul_n_blocks(ul_tbf_ass, 1);
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f_rx_rlcmac_dl_block_exp_ack_nack(dl_block);
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/* UL block should be received in SGSN */
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BSSGP[0].receive(tr_BSSGP_UL_UD(tlli, mp_gb_cfg.cell_id));
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/* Now SGSN sends some DL data, PCU will page on CCCH (PCH) */
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BSSGP[0].send(ts_BSSGP_DL_UD(tlli, f_rnd_octstring(10)));
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f_pcuif_rx_pch_imm_tbf_ass(rr_imm_ass);
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ok := f_imm_ass_verify_dl_tbf_ass(rr_imm_ass, dl_tbf_ass);
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if (not ok) {
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setverdict(fail, "Immediate Assignment not a Downlink TBF");
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mtc.stop;
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}
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/* TODO: ACK the assignment and the DL block somehow? */
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}
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control {
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control {
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execute( TC_ns_reset() );
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execute( TC_ns_reset() );
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@ -1070,6 +1158,7 @@ control {
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execute( TC_ta_ptcch_ul_multi_tbf() );
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execute( TC_ta_ptcch_ul_multi_tbf() );
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execute( TC_cs_lqual_ul_tbf() );
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execute( TC_cs_lqual_ul_tbf() );
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execute( TC_t3169() );
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execute( TC_t3169() );
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execute( TC_mo_ping_pong() );
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}
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}
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