pcu: Introduce TC_mt_ping_pong
Change-Id: I0cbf4ac78e4c89f21b8c2b92eba1783667501e64
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@ -1199,6 +1199,71 @@ testcase TC_mo_ping_pong() runs on RAW_PCU_Test_CT {
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f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(dl_block.data.mac_hdr.hdr_ext.tfi, ack_nack_desc), 0, sched_fn);
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}
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/* Test scenario where SGSN wants to send some data against MS and it is
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* answered by the MS on PDCH, so TBFs for downlink and later for uplink are created.
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*/
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testcase TC_mt_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 := f_rnd_octstring(10);
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var boolean ok;
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var uint32_t sched_fn;
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var OCT4 tlli := '00000001'O;
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var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init);
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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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/* SGSN sends some DL data, PCU will page on CCCH (PCH) */
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BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data));
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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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/* Wait timer X2002 and DL block is available after CCCH IMM ASS: */
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f_sleep(X2002);
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f_rx_rlcmac_dl_block_exp_data(dl_block, sched_fn, data, 0);
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/* ACK the DL block */
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f_acknackdesc_ack_block(ack_nack_desc, dl_block.data.mac_hdr.hdr_ext.bsn, '1'B);
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f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(dl_block.data.mac_hdr.hdr_ext.tfi, ack_nack_desc), 0, sched_fn);
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/* Now MS wants to answer the DL data, 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, sched_fn);
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/* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */
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f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn);
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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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}
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/* Verify that if PCU doesn't get an ACK for first DL block after IMM ASS, it
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* will retry by retransmitting both the IMM ASS + DL block after poll (ack)
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* timeout occurs (specified by sent RRBP on DL block). */
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@ -1437,6 +1502,7 @@ control {
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execute( TC_t3169() );
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execute( TC_t3193() );
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execute( TC_mo_ping_pong() );
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execute( TC_mt_ping_pong() );
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execute( TC_imm_ass_dl_block_retrans() );
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execute( TC_paging_cs_from_bts() );
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execute (TC_paging_cs_from_sgsn_sign() );
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