laforge has submitted this change. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/19324 )
Change subject: PCU_Tests: verify handling of frequency hopping parameters
......................................................................
PCU_Tests: verify handling of frequency hopping parameters
Change-Id: I1beda9224998848f9243237413e5ae3e0ddab8a5
Related: SYS#4868, OS#4547
---
M pcu/PCU_Tests.ttcn
1 file changed, 271 insertions(+), 0 deletions(-)
Approvals:
Jenkins Builder: Verified
pespin: Looks good to me, but someone else must approve
laforge: Looks good to me, approved
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index dab87e0..1c77256 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -2069,6 +2069,266 @@
f_shutdown(__BFILE__, __LINE__, final := true);
}
+private function f_TC_pcuif_fh_check_imm_ass(in PCUIF_info_ind info_ind,
+ in GsmRrMessage rr_msg)
+{
+ var ImmediateAssignment ia := rr_msg.payload.imm_ass;
+ var PCUIF_InfoTrxTs ts := info_ind.trx.v10[0].ts[ia.pkt_chan_desc.tn];
+
+ var template PacketChannelDescription tr_pkt_chan_desc := {
+ channel_Type_spare := ?,
+ tn := ?,
+ tsc := ts.tsc,
+ presence := '1'B,
+ zero := omit,
+ one := {
+ maio := ts.maio,
+ hsn := ts.hsn
+ }
+ };
+
+ if (not match(ia.pkt_chan_desc, tr_pkt_chan_desc)) {
+ setverdict(fail, "Packet Channel Description does not match: ",
+ ia.pkt_chan_desc, " vs ", tr_pkt_chan_desc);
+ }
+
+ var MobileAllocation tr_ma := { len := 0, ma := ''B };
+ var octetstring ma_oct := bit2oct(ts.ma);
+
+ /* Calculate length of the useful part of Mobile Allocation */
+ for (var integer i := 0; i < lengthof(ma_oct); i := i + 1) {
+ if (ma_oct[i] != '00'O) {
+ tr_ma.len := i + 1;
+ }
+ }
+
+ /* Strip zero bytes from the right side of MA */
+ tr_ma.ma := substr(ts.ma, 0, tr_ma.len * 8);
+
+ if (not match(ia.mobile_allocation, tr_ma)) {
+ setverdict(fail, "Mobile Allocation does not match: ",
+ ia.mobile_allocation, " vs ", tr_ma);
+ }
+
+ setverdict(pass);
+}
+
+/* Make sure that Immediate (UL EGPRS TBF) Assignment contains hopping
parameters */
+testcase TC_pcuif_fh_imm_ass_ul_egprs() runs on RAW_PCU_Test_CT {
+ var template PCUIF_info_ind info_ind := ts_PCUIF_INFO_default;
+ var GprsMS ms := valueof(t_GprsMS_def);
+
+ /* Enable frequency hopping of TRX0/TS7 */
+ info_ind.trx.v10[0].ts[7] := ts_PCUIF_InfoTrxTsH1(
+ tsc := f_rnd_int(7),
+ hsn := f_rnd_int(63),
+ maio := f_rnd_int(63),
+ ma := f_rnd_bitstring(32));
+
+ /* Initialize the PCU interface abstraction */
+ f_init_raw(testcasename(), info_ind);
+
+ /* EGPRS Packet Channel Request (cause=Signalling) */
+ f_ms_use_ra(ms, bit2int('11001101010'B), ra_is_11bit := 1);
+
+ /* Establish an Uplink EGPRS TBF */
+ f_ms_establish_ul_tbf(ms);
+
+ f_TC_pcuif_fh_check_imm_ass(valueof(info_ind), ms.ul_tbf.rr_imm_ass);
+ f_shutdown(__BFILE__, __LINE__, final := true);
+}
+
+/* Make sure that Immediate (UL TBF) Assignment contains hopping parameters */
+testcase TC_pcuif_fh_imm_ass_ul() runs on RAW_PCU_Test_CT {
+ var template PCUIF_info_ind info_ind := ts_PCUIF_INFO_default;
+ var GprsMS ms := valueof(t_GprsMS_def);
+
+ /* Enable frequency hopping of TRX0/TS7 */
+ info_ind.trx.v10[0].ts[7] := ts_PCUIF_InfoTrxTsH1(
+ tsc := f_rnd_int(7),
+ hsn := f_rnd_int(63),
+ maio := f_rnd_int(63),
+ ma := f_rnd_bitstring(32));
+
+ /* Initialize the PCU interface abstraction */
+ f_init_raw(testcasename(), info_ind);
+
+ /* Establish an Uplink TBF */
+ f_ms_establish_ul_tbf(ms);
+
+ f_TC_pcuif_fh_check_imm_ass(valueof(info_ind), ms.ul_tbf.rr_imm_ass);
+ f_shutdown(__BFILE__, __LINE__, final := true);
+}
+
+/* Make sure that Immediate (DL TBF) Assignment contains hopping parameters */
+testcase TC_pcuif_fh_imm_ass_dl() runs on RAW_PCU_Test_CT {
+ var template PCUIF_info_ind info_ind := ts_PCUIF_INFO_default;
+ var GprsMS ms := valueof(t_GprsMS_def);
+
+ /* Enable frequency hopping of TRX0/TS7 */
+ info_ind.trx.v10[0].ts[7] := ts_PCUIF_InfoTrxTsH1(
+ tsc := f_rnd_int(7),
+ hsn := f_rnd_int(63),
+ maio := f_rnd_int(63),
+ ma := f_rnd_bitstring(16));
+
+ /* Initialize NS/BSSGP side */
+ f_init_bssgp();
+
+ /* Initialize the PCU interface abstraction */
+ f_init_raw(testcasename(), info_ind);
+
+ /* Establish BSSGP connection to the PCU */
+ f_bssgp_establish();
+ f_bssgp_client_llgmm_assign('FFFFFFFF'O, ms.tlli);
+
+ /* SGSN sends some DL data, PCU will page on CCCH (PCH) */
+ BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, f_rnd_octstring(12)));
+ f_ms_exp_dl_tbf_ass_ccch(ms, PCU_IF_SAPI_PCH);
+
+ f_TC_pcuif_fh_check_imm_ass(valueof(info_ind), ms.dl_tbf.rr_imm_ass);
+ f_shutdown(__BFILE__, __LINE__, final := true);
+}
+
+private function f_TC_pcuif_fh_check_pkt_ass(in PCUIF_info_ind info_ind,
+ in FrequencyParameters fp)
+{
+ /* FIXME: TRX0/TS7 is a hard-coded expectation, make it configurable */
+ var PCUIF_InfoTrxTs ts := info_ind.trx.v10[0].ts[7];
+ var integer ma_bit_len := 0;
+
+ /* Calculate length of the useful part of Mobile Allocation */
+ for (var integer i := 0; i < lengthof(ts.ma); i := i + 1) {
+ if (ts.ma[i] == '1'B) {
+ ma_bit_len := i + 1;
+ }
+ }
+
+ /* Table 12.8.1: Frequency Parameters information elements */
+ var template FrequencyParameters tr_fp := {
+ tsc := ts.tsc,
+ presence := '10'B, /* Direct encoding 1 */
+ arfcn := omit,
+ indirect := omit,
+ direct1 := {
+ maio := ts.maio,
+ /* Table 12.10a.1: GPRS Mobile Allocation information
elements */
+ mobile_allocation := {
+ hsn := ts.hsn,
+ rfl_number_list_present := '0'B,
+ rfl_number_list := omit,
+ ma_present := '0'B, /* inverted logic */
+ ma_length := ma_bit_len,
+ ma_bitmap := substr(ts.ma, 0, ma_bit_len)
+ }
+ },
+ direct2 := omit
+ };
+
+ if (not match(fp, tr_fp)) {
+ setverdict(fail, "Frequency Parameters IE does not match: ",
+ fp, " vs ", tr_fp);
+ }
+
+ setverdict(pass);
+}
+
+/* Make sure that Packet Uplink Assignment contains hopping parameters */
+testcase TC_pcuif_fh_pkt_ass_ul() runs on RAW_PCU_Test_CT {
+ var template PCUIF_info_ind info_ind := ts_PCUIF_INFO_default;
+ var GprsMS ms := valueof(t_GprsMS_def);
+ var uint32_t poll_fn;
+
+ /* Enable frequency hopping of TRX0/TS7 */
+ info_ind.trx.v10[0].ts[7] := ts_PCUIF_InfoTrxTsH1(
+ tsc := f_rnd_int(7),
+ hsn := f_rnd_int(63),
+ maio := f_rnd_int(63),
+ ma := f_rnd_bitstring(33));
+
+ /* Initialize the PCU interface abstraction */
+ f_init_raw(testcasename(), info_ind);
+
+ /* Establish an Uplink TBF */
+ f_ms_establish_ul_tbf(ms);
+
+ /* Send Packet Resource Request, so the network will allocate an Uplink
resource */
+ f_ms_tx_ul_block(ms,
ts_RLC_UL_CTRL_ACK(ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, omit)));
+
+ /* Expect an RLC/MAC block with Packet Uplink Assignment on PACCH (see
11.2.29) */
+ var RlcmacDlBlock blk := f_ms_rx_pkt_ass_pacch(ms, poll_fn,
tr_RLCMAC_UL_PACKET_ASS);
+ var PacketUlAssignment ua := blk.ctrl.payload.u.ul_assignment;
+
+ /* 3GPP TS 44.060, section 12.8 "Frequency Parameters" */
+ var template (omit) FrequencyParameters fp;
+ if (ua.is_egprs == '1'B) {
+ fp := ua.egprs.freq_par;
+ } else {
+ fp := ua.gprs.freq_par;
+ }
+
+ /* This is an optional IE, so it's worth to check its presence */
+ if (istemplatekind(fp, "omit")) {
+ setverdict(fail, "Frequency Parameters IE is not present");
+ f_shutdown(__BFILE__, __LINE__);
+ }
+
+ f_TC_pcuif_fh_check_pkt_ass(valueof(info_ind), valueof(fp));
+ f_shutdown(__BFILE__, __LINE__, final := true);
+}
+
+/* Make sure that Packet Downlink Assignment contains hopping parameters */
+testcase TC_pcuif_fh_pkt_ass_dl() runs on RAW_PCU_Test_CT {
+ var template PCUIF_info_ind info_ind := ts_PCUIF_INFO_default;
+ var octetstring data := f_rnd_octstring(10);
+ var GprsMS ms := valueof(t_GprsMS_def);
+ var RlcmacDlBlock dl_block;
+ var uint32_t poll_fn;
+
+ /* Enable frequency hopping of TRX0/TS7 */
+ info_ind.trx.v10[0].ts[7] := ts_PCUIF_InfoTrxTsH1(
+ tsc := f_rnd_int(7),
+ hsn := f_rnd_int(63),
+ maio := f_rnd_int(63),
+ ma := f_rnd_bitstring(33));
+
+ /* Initialize NS/BSSGP side */
+ f_init_bssgp();
+
+ /* Initialize the PCU interface abstraction */
+ f_init_raw(testcasename(), info_ind);
+
+ /* Establish BSSGP connection to the PCU */
+ f_bssgp_establish();
+ f_bssgp_client_llgmm_assign('FFFFFFFF'O, ms.tlli);
+
+ /* Establish an Uplink TBF */
+ f_ms_establish_ul_tbf(ms);
+
+ /* Send an Uplink block, so this TBF becomes "active" */
+ f_ms_tx_ul_data_block(ms, data, with_tlli := true);
+
+ /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */
+ f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, poll_fn);
+ f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), poll_fn);
+
+ /* SGSN sends some DL data, PCU will assign Downlink resource on PACCH
*/
+ BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data));
+
+ /* Expect an RLC/MAC block with Packet Downlink Assignment on PACCH
(see 11.2.29) */
+ dl_block := f_ms_rx_pkt_ass_pacch(ms, poll_fn, tr_RLCMAC_DL_PACKET_ASS);
+ var PacketDlAssignment da := dl_block.ctrl.payload.u.dl_assignment;
+
+ /* This is an optional IE, so it's worth to check its presence */
+ if (not ispresent(da.freq_par)) {
+ setverdict(fail, "Frequency Parameters IE is not present");
+ f_shutdown(__BFILE__, __LINE__);
+ }
+
+ f_TC_pcuif_fh_check_pkt_ass(valueof(info_ind), da.freq_par);
+ f_shutdown(__BFILE__, __LINE__, final := true);
+}
+
control {
execute( TC_pcuif_suspend() );
execute( TC_ta_ptcch_idle() );
@@ -2109,6 +2369,17 @@
execute( TC_egprs_pkt_chan_req_reject_exhaustion() );
execute( TC_mo_ping_pong_with_ul_racap_egprs_only() );
+
+ /* Frequency hopping specific test cases */
+ if (PCUIF_Types.mp_pcuif_version >= 10) {
+ /* Immediate Assignment on AGCH/PCH */
+ execute( TC_pcuif_fh_imm_ass_ul_egprs() );
+ execute( TC_pcuif_fh_imm_ass_ul() );
+ execute( TC_pcuif_fh_imm_ass_dl() );
+ /* Packet Uplink/Downlink Assignment on PACCH */
+ execute( TC_pcuif_fh_pkt_ass_ul() );
+ execute( TC_pcuif_fh_pkt_ass_dl() );
+ }
}
--
To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/19324
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: I1beda9224998848f9243237413e5ae3e0ddab8a5
Gerrit-Change-Number: 19324
Gerrit-PatchSet: 11
Gerrit-Owner: fixeria <vyanits...@sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanits...@sysmocom.de>
Gerrit-Reviewer: laforge <lafo...@osmocom.org>
Gerrit-Reviewer: pespin <pes...@sysmocom.de>
Gerrit-MessageType: merged
