Eric Wild has uploaded this change for review. ( 
https://gerrit.osmocom.org/14151


Change subject: bts: Extend BTS_Tests.ttcn with test for RSL channel activation 
with TA from initial activation onwards
......................................................................

bts: Extend BTS_Tests.ttcn with test for RSL channel activation with TA from 
initial activation onwards

Change-Id: I4b2eec223e961aeedfd8afa77cb671d2842910fb
Related: OS##3750
---
M bts/BTS_Tests.ttcn
1 file changed, 50 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks 
refs/changes/51/14151/1

diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index 7912ff6..0eba242 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -1783,6 +1783,55 @@
        Misc_Helpers.f_shutdown(__BFILE__, __LINE__);
 }

+/* establish DChan, verify that the BTS sets the TA in the first SACCH L1 
header.
+TA for the IMM ASS messages is still controlled by 
g_pars.l1_pars.ms_actual_ta! */
+function f_tc_rsl_chan_initial_ta(charstring id) runs on ConnHdlr {
+       var L1ctlDlMessage l1_dl;
+       var uint5_t ta_to_test := 16;
+
+
+       f_l1_tune(L1CTL);
+       RSL.clear;
+
+       /* tell fake_trx to use a given timing offset for all bursts */
+       f_trx_fake_toffs256(ta_to_test*256);
+
+       f_est_dchan(more_ies :={valueof(t_RSL_IE(RSL_IE_TIMING_ADVANCE, 
RSL_IE_Body:{timing_adv := ta_to_test}))} );
+
+
+       alt {
+
+       /* Pick all SACCH blocks for checking */
+       [] L1CTL.receive(tr_L1CTL_DATA_IND(g_chan_nr, tr_RslLinkID_SACCH(?))) 
-> value l1_dl {
+
+               /* The second byte of the L1 header contains the TA. */
+               if (not (l1_dl.payload.data_ind.payload[1] == 
int2oct(ta_to_test, 1))) {
+                       setverdict(fail, "TA in L1 header does not match the 
signaled (RSL) TA.");
+               }
+
+               }
+
+       /* Ignore all other blocks */
+       [] L1CTL.receive { repeat; }
+
+       }
+
+       f_rsl_chan_deact();
+       f_L1CTL_DM_REL_REQ(L1CTL, g_chan_nr);
+
+       setverdict(pass);
+}
+
+testcase TC_rsl_chan_initial_ta() runs on test_CT {
+       var ConnHdlr vc_conn;
+       var ConnHdlrPars pars;
+       f_init(testcasename());
+       pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN));
+       vc_conn := f_start_handler(refers(f_tc_rsl_chan_initial_ta), pars);
+       vc_conn.done;
+       Misc_Helpers.f_shutdown(__BFILE__, __LINE__);
+}
+
 /* Test if a channel without valid uplink bursts generates RSL CONN FAIL IND 
(TS 48.058 4.10) */
 private function f_TC_conn_fail_crit(charstring id) runs on ConnHdlr {
        f_l1_tune(L1CTL);
@@ -4621,6 +4670,7 @@
        execute( TC_meas_res_sign_sdcch8() );
        execute( TC_meas_res_sign_tchh_toa256() );
        execute( TC_rsl_ms_pwr_ctrl() );
+       execute( TC_rsl_chan_initial_ta() );
        execute( TC_conn_fail_crit() );
        execute( TC_paging_imsi_80percent() );
        execute( TC_paging_tmsi_80percent() );

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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I4b2eec223e961aeedfd8afa77cb671d2842910fb
Gerrit-Change-Number: 14151
Gerrit-PatchSet: 1
Gerrit-Owner: Eric Wild <ew...@sysmocom.de>

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