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BSC_Tests: set band in f_TC_fh_params_set 

The function f_TC_fh_params_set sets frequency hopping parameters. The
ARFCN is also part of those parameters. However, this function does not
set the respective band for the ARFCN that it configurs. This results in
an invalid setting at the BSC that might cause unexpected behavior.

Lets make sure we configure the band parameter correctly before setting
the ARFCN

Change-Id: I447e4145c68c62b11b818e28f0081c19e9107647
Related: SYS#5369
This commit is contained in:
Philipp Maier 2021-10-19 14:43:19 +02:00
parent f54db11cbc
commit 798d895071
1 changed files with 39 additions and 8 deletions
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47
bsc/BSC_Tests.ttcn
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@ -8439,7 +8439,7 @@ private type record FHParamsTs {
/* Hopping parameters per a transceiver */
private type record FHParamsTrx {
GsmArfcn arfcn,
GsmBandArfcn arfcn,
FHParamsTs ts[8]
};
@ -8448,8 +8448,10 @@ private function f_TC_fh_params_gen(template integer tr_tn := (1, 3, 5))
runs on test_CT return FHParamsTrx {
var FHParamsTrx fhp;
/* Generate a random ARFCN, including ARFCN 0 */
fhp.arfcn := f_rnd_int(3);
/* Generate a random ARFCN in the range of 0 - 3. This ARFCN will
* fall in the GSM900 band. */
fhp.arfcn.arfcn := f_rnd_int(3);
fhp.arfcn.pcs := false;
for (var integer tn := 0; tn < 8; tn := tn + 1) {
if (not match(tn, tr_tn)) {
@ -8488,7 +8490,7 @@ private function f_TC_fh_params_match_chan_desc(in FHParamsTrx fhp, in ChannelDe
tr_maio_hsn := tr_HsnMaio(fhp.ts[tn].hsn, fhp.ts[tn].maio);
tr_cd := tr_ChanDescH1(cd.chan_nr, tr_maio_hsn);
} else {
tr_cd := tr_ChanDescH0(cd.chan_nr, fhp.arfcn);
tr_cd := tr_ChanDescH0(cd.chan_nr, fhp.arfcn.arfcn);
}
if (not match(cd, tr_cd)) {
@ -8533,7 +8535,7 @@ return template MobileAllocationLV {
}
/* Take ARFCN of the TRX itself into account */
full_mask[fhp.arfcn] := '1'B;
full_mask[fhp.arfcn.arfcn] := '1'B;
/* Compose a bit-mask for the given timeslot number */
for (var integer i := 0; i < lengthof(fhp.ts[tn].ma); i := i + 1) {
@ -8570,15 +8572,41 @@ return template MobileAllocationLV {
return { len := ma_mask_len, ma := ma_mask };
}
/* Configure the appropriate band for a given arfcn, exc */
private function f_TC_set_band_by_arfcn(integer bts_nr, GsmBandArfcn arfcn) runs on test_CT
{
var charstring band;
var GsmBandArfcn arfcn_ := valueof(ts_GsmBandArfcn(arfcn.arfcn, arfcn.pcs, false));
select (arfcn_) {
case (tr_GsmBandArfcn((259..293), false, ?)) { band := "GSM450"; }
case (tr_GsmBandArfcn((306..340), false, ?)) { band := "GSM480"; }
case (tr_GsmBandArfcn((438..511), false, ?)) { band := "GSM750"; }
case (tr_GsmBandArfcn((128..251), false, ?)) { band := "GSM850"; }
case (tr_GsmBandArfcn((0..124), false, ?)) { band := "GSM900"; }
case (tr_GsmBandArfcn((955..1023), false, ?)) { band := "GSM900"; }
case (tr_GsmBandArfcn((512..885), false, ?)) { band := "DCS1800"; }
case (tr_GsmBandArfcn((512..810), true, ?)) { band := "PCS1900"; }
case else { return; }
}
f_vty_enter_cfg_bts(BSCVTY, bts_nr);
f_vty_transceive(BSCVTY, "band " & band);
f_vty_transceive(BSCVTY, "end");
}
/* Configure the hopping parameters in accordance with the given record */
private function f_TC_fh_params_set(in FHParamsTrx fhp,
uint8_t bts_nr := 0,
uint8_t trx_nr := 0)
runs on test_CT {
f_TC_set_band_by_arfcn(bts_nr, fhp.arfcn);
/* Enter the configuration node for the given BTS/TRX numbers */
f_vty_enter_cfg_trx(BSCVTY, bts_nr, trx_nr);
f_vty_transceive(BSCVTY, "arfcn " & int2str(fhp.arfcn));
f_vty_transceive(BSCVTY, "arfcn " & int2str(fhp.arfcn.arfcn));
for (var integer tn := 0; tn < lengthof(fhp.ts); tn := tn + 1) {
f_vty_transceive(BSCVTY, "timeslot " & int2str(tn));
@ -8609,12 +8637,15 @@ runs on test_CT {
private function f_TC_fh_params_unset(in FHParamsTrx fhp,
uint8_t bts_nr := 0,
uint8_t trx_nr := 0,
GsmArfcn arfcn := 871)
GsmBandArfcn arfcn := {pcs := false, arfcn := 871})
runs on test_CT {
f_TC_set_band_by_arfcn(bts_nr, arfcn);
/* Enter the configuration node for the given BTS/TRX numbers */
f_vty_enter_cfg_trx(BSCVTY, bts_nr, trx_nr);
f_vty_transceive(BSCVTY, "arfcn " & int2str(arfcn));
f_vty_transceive(BSCVTY, "arfcn " & int2str(arfcn.arfcn));
for (var integer tn := 0; tn < lengthof(fhp.ts); tn := tn + 1) {
f_vty_transceive(BSCVTY, "timeslot " & int2str(tn));