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Format schedule_nr_mib()

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This commit is contained in:
Robert Schmidt
2020-11-03 14:23:50 +01:00
parent 2bdcbe6c18
commit 40175d244a
1 changed files with 60 additions and 51 deletions
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openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c
+60 -51
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@@ -75,29 +75,38 @@ void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t slotP,
int ratio;
switch (*cc->ServingCellConfigCommon->ssbSubcarrierSpacing) {
case NR_SubcarrierSpacing_kHz15:
AssertFatal(band <= 79, "Band %ld is not possible for SSB with 15 kHz SCS\n",band);
if (band<77) // below 3GHz
ratio=3; // NRARFCN step is 5 kHz
AssertFatal(band <= 79,
"Band %ld is not possible for SSB with 15 kHz SCS\n",
band);
if (band < 77) // below 3GHz
ratio = 3; // NRARFCN step is 5 kHz
else
ratio=1; // NRARFCN step is 15 kHz
ratio = 1; // NRARFCN step is 15 kHz
break;
case NR_SubcarrierSpacing_kHz30:
AssertFatal(band <= 79, "Band %ld is not possible for SSB with 15 kHz SCS\n",band);
if (band<77) // below 3GHz
ratio=6; // NRARFCN step is 5 kHz
AssertFatal(band <= 79,
"Band %ld is not possible for SSB with 15 kHz SCS\n",
band);
if (band < 77) // below 3GHz
ratio = 6; // NRARFCN step is 5 kHz
else
ratio=2; // NRARFCN step is 15 kHz
ratio = 2; // NRARFCN step is 15 kHz
break;
case NR_SubcarrierSpacing_kHz120:
AssertFatal(band >= 257, "Band %ld is not possible for SSB with 120 kHz SCS\n",band);
ratio=2; // NRARFCN step is 15 kHz
AssertFatal(band >= 257,
"Band %ld is not possible for SSB with 120 kHz SCS\n",
band);
ratio = 2; // NRARFCN step is 15 kHz
break;
case NR_SubcarrierSpacing_kHz240:
AssertFatal(band >= 257, "Band %ld is not possible for SSB with 240 kHz SCS\n",band);
ratio=4; // NRARFCN step is 15 kHz
AssertFatal(band >= 257,
"Band %ld is not possible for SSB with 240 kHz SCS\n",
band);
ratio = 4; // NRARFCN step is 15 kHz
break;
default:
AssertFatal(1==0,"SCS %ld not allowed for SSB \n", *cc->ServingCellConfigCommon->ssbSubcarrierSpacing);
AssertFatal(1 == 0, "SCS %ld not allowed for SSB \n",
*cc->ServingCellConfigCommon->ssbSubcarrierSpacing);
}
// scheduling MIB every 8 frames, PHY repeats it in between
@@ -105,13 +114,17 @@ void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t slotP,
dl_tti_request = &gNB->DL_req[CC_id];
dl_req = &dl_tti_request->dl_tti_request_body;
mib_sdu_length = mac_rrc_nr_data_req(module_idP, CC_id, frameP, MIBCH, 1, &cc->MIB_pdu.payload[0]); // not used in this case
mib_sdu_length = mac_rrc_nr_data_req(module_idP, CC_id, frameP, MIBCH, 1, &cc->MIB_pdu.payload[0]);
LOG_D(MAC, "Frame %d, slot %d: BCH PDU length %d\n", frameP, slotP, mib_sdu_length);
if (mib_sdu_length > 0) {
LOG_D(MAC, "Frame %d, slot %d: Adding BCH PDU in position %d (length %d)\n", frameP, slotP, dl_req->nPDUs, mib_sdu_length);
LOG_D(MAC,
"Frame %d, slot %d: Adding BCH PDU in position %d (length %d)\n",
frameP,
slotP,
dl_req->nPDUs,
mib_sdu_length);
if ((frameP & 1023) < 80){
LOG_I(MAC,"[gNB %d] Frame %d : MIB->BCH CC_id %d, Received %d bytes\n",module_idP, frameP, CC_id, mib_sdu_length);
@@ -146,49 +159,45 @@ void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t slotP,
const int abs_slot = (slots_per_frame * frameP) + slotP;
const int slot_per_period = (slots_per_frame>>1)<<(*cc->ServingCellConfigCommon->ssb_periodicityServingCell);
int eff_120_slot;
const BIT_STRING_t *mediumBitmap = &cc->ServingCellConfigCommon->ssb_PositionsInBurst->choice.mediumBitmap;
uint8_t buf = 0;
switch (cc->ServingCellConfigCommon->ssb_PositionsInBurst->present) {
case 1 :
case 1:
// presence of ssbs possible in the first 2 slots of ssb period
if ((abs_slot%slot_per_period)<2){
if((((cc->ServingCellConfigCommon->ssb_PositionsInBurst->choice.mediumBitmap.buf[0])>>(6-(slotP<<1)))&3)!=0)
fill_ssb_vrb_map(cc, (ssb_offset0/(ratio*12) - 10), CC_id);
}
if ((abs_slot % slot_per_period) < 2 &&
(((mediumBitmap->buf[0]) >> (6 - (slotP << 1))) & 3) != 0)
fill_ssb_vrb_map(cc, (ssb_offset0 / (ratio * 12) - 10), CC_id);
break;
case 2 :
case 2:
// presence of ssbs possible in the first 4 slots of ssb period
if ((abs_slot%slot_per_period)<4){
if((((cc->ServingCellConfigCommon->ssb_PositionsInBurst->choice.mediumBitmap.buf[0])>>(6-(slotP<<1)))&3)!=0)
fill_ssb_vrb_map(cc, (ssb_offset0/(ratio*12) - 10), CC_id);
}
if ((abs_slot % slot_per_period) < 4 &&
(((mediumBitmap->buf[0]) >> (6 - (slotP << 1))) & 3) != 0)
fill_ssb_vrb_map(cc, (ssb_offset0 / (ratio * 12) - 10), CC_id);
break;
case 3 :
if(*cc->ServingCellConfigCommon->ssbSubcarrierSpacing == NR_SubcarrierSpacing_kHz120){
if ((abs_slot%slot_per_period)<8){
eff_120_slot = slotP;
if((((cc->ServingCellConfigCommon->ssb_PositionsInBurst->choice.mediumBitmap.buf[0])>>(6-(eff_120_slot<<1)))&3)!=0)
fill_ssb_vrb_map(cc, (ssb_offset0/(ratio*12) - 10), CC_id);
}
else if ((abs_slot%slot_per_period)<17){
eff_120_slot = slotP-9;
if((((cc->ServingCellConfigCommon->ssb_PositionsInBurst->choice.mediumBitmap.buf[1])>>(6-(eff_120_slot<<1)))&3)!=0)
fill_ssb_vrb_map(cc, (ssb_offset0/(ratio*12) - 10), CC_id);
}
else if ((abs_slot%slot_per_period)<26){
eff_120_slot = slotP-18;
if((((cc->ServingCellConfigCommon->ssb_PositionsInBurst->choice.mediumBitmap.buf[2])>>(6-(eff_120_slot<<1)))&3)!=0)
fill_ssb_vrb_map(cc, (ssb_offset0/(ratio*12) - 10), CC_id);
}
else if ((abs_slot%slot_per_period)<35){
eff_120_slot = slotP-27;
if((((cc->ServingCellConfigCommon->ssb_PositionsInBurst->choice.mediumBitmap.buf[3])>>(6-(eff_120_slot<<1)))&3)!=0)
fill_ssb_vrb_map(cc, (ssb_offset0/(ratio*12) - 10), CC_id);
}
case 3:
AssertFatal(*cc->ServingCellConfigCommon->ssbSubcarrierSpacing ==
NR_SubcarrierSpacing_kHz120,
"240kHZ subcarrier spacing currently not supported for SSBs\n");
if ((abs_slot % slot_per_period) < 8) {
eff_120_slot = slotP;
buf = mediumBitmap->buf[0];
} else if ((abs_slot % slot_per_period) < 17) {
eff_120_slot = slotP - 9;
buf = mediumBitmap->buf[1];
} else if ((abs_slot % slot_per_period) < 26) {
eff_120_slot = slotP - 18;
buf = mediumBitmap->buf[2];
} else if ((abs_slot % slot_per_period) < 35) {
eff_120_slot = slotP - 27;
buf = mediumBitmap->buf[3];
}
else
AssertFatal(1==0,"240kHZ subcarrier spacing currently not supported for SSBs\n");
if (((buf >> (6 - (eff_120_slot << 1))) & 3) != 0)
fill_ssb_vrb_map(cc, ssb_offset0 / (ratio * 12) - 10, CC_id);
break;
default:
AssertFatal(1==0,"SSB bitmap size value %d undefined (allowed values 1,2,3) \n", cc->ServingCellConfigCommon->ssb_PositionsInBurst->present);
AssertFatal(0,
"SSB bitmap size value %d undefined (allowed values 1,2,3)\n",
cc->ServingCellConfigCommon->ssb_PositionsInBurst->present);
}
}
}