bts: Add tests for CCCH LOAD IND (RACH)
Add three BTS_Tests.ttcn test cases for verifying the BTS behavior regarding CCCH LOAD IND (RACH). Related: OS#3750 Change-Id: I6c9dee1d7d3eaa218fdce7ebb8e334858aedb736
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@ -1269,6 +1269,132 @@ testcase TC_rach_count() runs on test_CT {
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Misc_Helpers.f_shutdown(__BFILE__, __LINE__);
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Misc_Helpers.f_shutdown(__BFILE__, __LINE__);
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}
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}
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private function f_vty_load_ind_thresh(integer period := 10, integer bts_nr := 0) runs on test_CT {
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var charstring bts_str := "bts " & int2str(bts_nr);
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f_vty_config2(BSCVTY, {"network", bts_str}, "ccch load-indication-threshold " & int2str(period));
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}
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/* empirical value: Number of RACH slots per reporting interval (1s) on combined CCCH */
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private template integer tr_rach_slots_per_interval := (90 .. 130);
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/* Expect 0 RACH load on an idle BTS that has just started up */
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testcase TC_rach_load_idle_thresh0() runs on test_CT {
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var ASP_RSL_Unitdata rx_ud;
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f_init_vty_bsc();
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/* send load indications even at 0% load */
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f_vty_load_ind_thresh(0);
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f_vty_transceive(BSCVTY, "drop bts connection 0 oml");
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f_sleep(2.0);
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f_init();
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timer T := 5.0;
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T.start;
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alt {
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[] RSL_CCHAN.receive(tr_RSL_UD(tr_RSL_RACH_LOAD_IND(tr_rach_slots_per_interval, 0, 0))) {
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setverdict(pass);
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repeat;
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}
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[] RSL_CCHAN.receive(tr_RSL_UD(tr_RSL_RACH_LOAD_IND(?, ?, ?))) -> value rx_ud {
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setverdict(fail, "Unexpected RACH LOAD IND: ", rx_ud);
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repeat;
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}
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[] RSL_CCHAN.receive {
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repeat;
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}
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[] T.timeout { }
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}
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f_vty_load_ind_thresh(10);
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Misc_Helpers.f_shutdown(__BFILE__, __LINE__);
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}
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/* Expect no RACH load indications on an idle BTS that has just started up (default threshold 10%) */
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testcase TC_rach_load_idle_below_thresh() runs on test_CT {
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var ASP_RSL_Unitdata rx_ud;
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f_init_vty_bsc();
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f_init();
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timer T := 5.0;
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T.start;
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alt {
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[] RSL_CCHAN.receive(tr_RSL_UD(tr_RSL_RACH_LOAD_IND(?, ?, ?))) -> value rx_ud {
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setverdict(fail, "Unexpected RACH LOAD IND: ", rx_ud);
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repeat;
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}
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[] RSL_CCHAN.receive {
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repeat;
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}
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[] T.timeout {
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setverdict(pass);
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}
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}
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Misc_Helpers.f_shutdown(__BFILE__, __LINE__);
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}
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/* Expect 0 RACH load on an idle BTS that has just started up */
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testcase TC_rach_load_count() runs on test_CT {
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var ASP_RSL_Unitdata rx_ud;
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var integer load_access_count := 0;
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f_init_vty_bsc();
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/* send load indications even at 0% load */
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f_vty_load_ind_thresh(0);
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f_vty_transceive(BSCVTY, "drop bts connection 0 oml");
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f_sleep(2.0);
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f_init();
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f_init_l1ctl();
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f_sleep(1.0);
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f_l1_tune(L1CTL);
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var GsmFrameNumber fn_last := 0;
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for (var integer i := 0; i < 1000; i := i+1) {
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var OCT1 ra := f_rnd_ra_cs();
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var GsmFrameNumber fn := f_L1CTL_RACH(L1CTL, oct2int(ra));
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if (fn == fn_last) {
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Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Two RACH in same FN?!?");
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}
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fn_last := fn;
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}
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timer T := 5.0;
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T.start;
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alt {
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[] RSL_CCHAN.receive(tr_RSL_UD(tr_RSL_RACH_LOAD_IND(tr_rach_slots_per_interval, ?, ?)))
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-> value rx_ud {
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var RSL_IE_Body ie;
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f_rsl_find_ie(rx_ud.rsl, RSL_IE_RACH_LOAD, ie);
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load_access_count := load_access_count + ie.rach_load.access_count;
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if (ie.rach_load.busy_count < ie.rach_load.access_count) {
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setverdict(fail, "Access count cannot be < Busy count");
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}
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repeat;
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}
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[] RSL_CCHAN.receive(tr_RSL_UD(tr_RSL_RACH_LOAD_IND(?, ?, ?))) -> value rx_ud {
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setverdict(fail, "Unexpected RACH LOAD IND: ", rx_ud);
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repeat;
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}
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[] RSL_CCHAN.receive {
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repeat;
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}
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[] T.timeout { }
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}
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if (load_access_count == 1000) {
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setverdict(pass);
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} else {
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setverdict(fail, "Load reports state ", load_access_count, " RACH, but we sent 1000");
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}
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f_vty_load_ind_thresh(10);
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Misc_Helpers.f_shutdown(__BFILE__, __LINE__);
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}
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private function f_main_trxc_connect() runs on test_CT {
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private function f_main_trxc_connect() runs on test_CT {
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map(self:BTS_TRXC, system:BTS_TRXC);
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map(self:BTS_TRXC, system:BTS_TRXC);
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var Result res;
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var Result res;
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@ -4636,8 +4762,6 @@ testcase TC_chopped_ipa_payload() runs on test_CT {
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* handover detection
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* handover detection
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* BS Power Control
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* BS Power Control
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* Physical Context
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* Physical Context
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* CCCH Load Indication for RACH
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* SMS Broadcast Req / Cmd / CBCH LOad Ind
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* RF resource ind
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* RF resource ind
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* error handling
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* error handling
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** IE duplicated?
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** IE duplicated?
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@ -4664,6 +4788,9 @@ control {
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execute( TC_rach_content() );
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execute( TC_rach_content() );
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execute( TC_rach_count() );
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execute( TC_rach_count() );
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execute( TC_rach_max_ta() );
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execute( TC_rach_max_ta() );
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execute( TC_rach_load_idle_thresh0() );
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execute( TC_rach_load_idle_below_thresh() );
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execute( TC_rach_load_count() );
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execute( TC_meas_res_sign_tchf() );
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execute( TC_meas_res_sign_tchf() );
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execute( TC_meas_res_sign_tchh() );
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execute( TC_meas_res_sign_tchh() );
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execute( TC_meas_res_sign_sdcch4() );
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execute( TC_meas_res_sign_sdcch4() );
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