pespin has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/18260 )
Change subject: pcu: Introduce test TC_countdown_procedure
......................................................................
pcu: Introduce test TC_countdown_procedure
Change-Id: I2b92bf4a17e89b1d68869aac4243c0e106ce3be5
---
M pcu/PCU_Tests.ttcn
1 file changed, 60 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/60/18260/1
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index ce4ea8d..cc2add2 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -1434,6 +1434,65 @@
f_shutdown(__BFILE__, __LINE__, final := true);
}
+/* Verify PCU handles correctly Countdown Procedure based on BS_CV_MAX */
+testcase TC_countdown_procedure() runs on RAW_PCU_Test_CT {
+ var GsmRrMessage rr_imm_ass;
+ var PacketUlAssign ul_tbf_ass;
+ var RlcmacDlBlock dl_block;
+ var boolean ok;
+ var uint32_t sched_fn;
+ var OCT4 tlli := '00000001'O;
+ var uint14_t bsn := 1;
+ var PDU_BSSGP bssgp_pdu;
+ var octetstring total_payload;
+ var integer padding_len;
+
+ /* 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);
+
+ /* Establish an Uplink TBF */
+ ok := f_establish_tbf(rr_imm_ass);
+ if (not ok) {
+ setverdict(fail, "Failed to establish TBF");
+ f_shutdown(__BFILE__, __LINE__);
+ }
+ /* Make sure we've got an Uplink TBF assignment */
+ f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass);
+
+ /* Send one UL block (with TLLI since we are in One-Phase Access
+ contention resoultion) and make sure it is ACKED fine. */
+ total_payload := f_rnd_octstring(16); /* 16 bytes fills the llc
block (because TLLI takes 4 bytes) */
+ var template (value) RlcmacUlBlock ul_data := t_RLCMAC_UL_DATA_TLLI(
+ tfi := ul_tbf_ass.dynamic.tfi_assignment,
+ cv := 15, /* Set CV = 15 to signal there's still more than
BS_CV_MAX blocks to be sent */
+ bsn := 0,
+ blocks := { valueof(t_RLCMAC_LLCBLOCK(total_payload)) },
+ tlli := tlli);
+
+ f_tx_rlcmac_ul_block(ul_data, 0);
+ f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn);
+ /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */
+ f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn);
+
+ /* Send enough blocks to test whole procedure: Until Nth block
+ (N=BS_CV_MAX), CV=15 is sent, and then the decreasing countdown
value is sent.
+ */
+ total_payload := total_payload &
f_tx_rlcmac_ul_n_blocks(ul_tbf_ass.dynamic.tfi_assignment, bsn, 20);
+ f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn);
+ /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */
+ f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn);
+
+ /* receive one message on BSSGP with all aggregated data in payload: */
+ BSSGP[0].receive(tr_BSSGP_UL_UD(tlli, mp_gb_cfg.cell_id,
total_payload));
+}
+
/* Test scenario where MS wants to send some data on PDCH against SGSN and it
is
* answered, so TBFs for uplink and later for downlink are created.
*/
@@ -2188,6 +2247,7 @@
execute( TC_cs_max_ul() );
execute( TC_t3169() );
execute( TC_t3193() );
+ execute( TC_countdown_procedure() );
execute( TC_mo_ping_pong() );
execute( TC_mo_ping_pong_with_ul_racap() );
execute( TC_force_two_phase_access() );
--
To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/18260
To unsubscribe, or for help writing mail filters, visit
https://gerrit.osmocom.org/settings
Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I2b92bf4a17e89b1d68869aac4243c0e106ce3be5
Gerrit-Change-Number: 18260
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <pes...@sysmocom.de>
Gerrit-MessageType: newchange
