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author | Vadim Yanitskiy <axilirator@gmail.com> | 2020-05-11 03:48:06 +0700 |
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committer | Vadim Yanitskiy <axilirator@gmail.com> | 2020-05-11 13:48:11 +0700 |
commit | 71238c135d11e24fa3fd94abc459697fa79f9a3d (patch) | |
tree | 831eb56262fb3f43b4b4abb8ffd03427213b37e4 | |
parent | b6733a67ec7c8abc3b10f207a66c7d73c983fdcf (diff) |
PCU: introduce a new test case TC_dl_flow_more_blocks
Change-Id: I45edbc943194c15b084eb04dda390db75b4bfa0f
Signed-off-by: Vadim Yanitskiy <axilirator@gmail.com>
Related: OS#4506
-rw-r--r-- | pcu/PCU_Tests.ttcn | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn index 0a6b4103..a232a7f2 100644 --- a/pcu/PCU_Tests.ttcn +++ b/pcu/PCU_Tests.ttcn @@ -1600,6 +1600,86 @@ testcase TC_imm_ass_dl_block_retrans() runs on RAW_PCU_Test_CT { f_shutdown(__BFILE__, __LINE__, final := true); } +/* Verify scheduling of multiple Downlink data blocks during one RRBP. */ +testcase TC_dl_flow_more_blocks() runs on RAW_PCU_Test_CT { + var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init); + var octetstring data := f_rnd_octstring(16); + var OCT4 tlli := f_rnd_octstring(4); + var PacketDlAssign dl_tbf_ass; + var GsmRrMessage rr_imm_ass; + var RlcmacDlBlock dl_block; + var uint32_t ack_fn; + var uint32_t fn; + timer T := 5.0; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data)); + f_pcuif_rx_pch_imm_tbf_ass(rr_imm_ass); + + /* Make sure we've got a Downlink TBF assignment with DL TFI */ + f_imm_ass_verify_dl_tbf_ass(rr_imm_ass, dl_tbf_ass); + if (not ispresent(dl_tbf_ass.group1)) { + setverdict(fail, "Immediate Assignment contains no DL TFI"); + f_shutdown(__BFILE__, __LINE__); + } + + /* Get DL TFI from received Downlink TBF assignment */ + var uint5_t tfi := dl_tbf_ass.group1.tfi_assignment; + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS */ + f_sleep(X2002); + + /* Expect the first (GPRS DL) block with bsn=0 and rrbp_valid=1 */ + f_rx_rlcmac_dl_block_exp_data(dl_block, fn, data, 0); + f_acknackdesc_ack_block(ack_nack_desc, dl_block); + + /* TDMA frame number on which we are supposed to send the ACK */ + ack_fn := f_dl_block_ack_fn(dl_block, fn); + + /* SGSN sends more blocks during the indicated RRBP */ + for (var integer bsn := 1; bsn < 63; bsn := bsn + 1) { + data := f_rnd_octstring(16); /* Random LLC data */ + BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data)); + + f_rx_rlcmac_dl_block_exp_data(dl_block, fn, data, bsn); + + /* Make sure this block has the same TFI as was assigned + * FIXME: this is only valid for GPRS, not EGPRS. */ + if (dl_block.data.mac_hdr.hdr_ext.tfi != tfi) { + setverdict(fail, "Rx DL data block with unexpected TFI: ", + dl_block.data.mac_hdr.hdr_ext.tfi); + f_shutdown(__BFILE__, __LINE__); + } + + /* Keep Ack/Nack description updated */ + f_acknackdesc_ack_block(ack_nack_desc, dl_block); + + /* Break if this is the end of RRBP */ + if (fn == ack_fn) { + ack_nack_desc.final_ack := '1'B; + break; + } + } + + /* This is the end of RRBP, send Packet Downlink Ack/Nack */ + f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(tfi, ack_nack_desc), fn := fn); + + /* Make sure that the next block (after the Ack) is dummy */ + f_rx_rlcmac_dl_block_exp_dummy(dl_block); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + private function f_pkt_paging_match_imsi(in PacketPagingReq req, hexstring imsi) runs on RAW_PCU_Test_CT { var MobileIdentityLV_Paging mi_lv := req.repeated_pageinfo.cs.mobile_identity; @@ -1930,6 +2010,7 @@ control { execute( TC_mt_ping_pong() ); execute( TC_mt_ping_pong_with_dl_racap() ); execute( TC_imm_ass_dl_block_retrans() ); + execute( TC_dl_flow_more_blocks() ); execute( TC_paging_cs_from_bts() ); execute( TC_paging_cs_from_sgsn_sign_ptmsi() ); execute( TC_paging_cs_from_sgsn_sign() ); |