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some updates on SSB and a couple of fixes on warnings

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This commit is contained in:
Francesco Mani
2019-12-13 17:07:09 +01:00
parent decf6ed0e5
commit ac092841dd
4 changed files with 19 additions and 11 deletions
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openair1/PHY/NR_TRANSPORT/nr_dci.h
+4
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@@ -46,6 +46,10 @@ void nr_fill_dci(PHY_VARS_gNB *gNB,
int frame,
int slot);
void nr_fill_ul_dci(PHY_VARS_gNB *gNB,
int frame,
int slot);
void nr_fill_cce_list(PHY_VARS_gNB *gNB, uint8_t m);
void get_coreset_rballoc(uint8_t *FreqDomainResource,int *n_rb,int *rb_offset);
openair1/SCHED_NR/fapi_nr_l1.c
+1 -1
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@@ -44,7 +44,7 @@ void handle_nr_nfapi_ssb_pdu(PHY_VARS_gNB *gNB,int frame,int slot,
AssertFatal(dl_tti_pdu->ssb_pdu.ssb_pdu_rel15.bchPayloadFlag== 1, "bchPayloadFlat %d != 1\n",
dl_tti_pdu->ssb_pdu.ssb_pdu_rel15.bchPayloadFlag);
LOG_I(PHY,"%d.%d : pbch_pdu: %x\n",frame,slot,dl_tti_pdu->ssb_pdu.ssb_pdu_rel15.bchPayload,dl_tti_pdu->ssb_pdu.ssb_pdu_rel15.SsbBlockIndex);
LOG_I(PHY,"%d.%d : pbch_pdu: %x\n",frame,slot,dl_tti_pdu->ssb_pdu.ssb_pdu_rel15.bchPayload);
gNB->ssb_pdu = &dl_tti_pdu->ssb_pdu;
}
openair2/LAYER2/NR_MAC_gNB/config.c
+4 -1
View File
@@ -367,11 +367,14 @@ void config_common(int Mod_idP, NR_ServingCellConfigCommon_t *scc) {
// SSB Table Configuration
int scs_scaling = 1<<(cfg->ssb_config.scs_common.value);
if (scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA < 600000)
scs_scaling = scs_scaling*3;
if (scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA > 2016666)
scs_scaling = scs_scaling>>2;
uint32_t absolute_diff = (*scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencySSB - scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA);
cfg->ssb_table.ssb_offset_point_a.value = absolute_diff/(12*scs_scaling);
cfg->ssb_table.ssb_offset_point_a.tl.tag = NFAPI_NR_CONFIG_SSB_OFFSET_POINT_A_TAG;
cfg->num_tlv++;
cfg->ssb_table.ssb_period.value = *scc->ssb_periodicityServingCell;
cfg->ssb_table.ssb_period.tl.tag = NFAPI_NR_CONFIG_SSB_PERIOD_TAG;
cfg->num_tlv++;
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c
+10 -9
View File
@@ -69,7 +69,6 @@ void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t slotP){
int mib_sdu_length;
int CC_id;
AssertFatal(slotP == 0, "Subframe must be 0\n");
AssertFatal((frameP & 7) == 0, "Frame must be a multiple of 8\n");
@@ -107,34 +106,36 @@ void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t slotP){
AssertFatal(cc->ServingCellConfigCommon->ssbSubcarrierSpacing,"ssbSubcarrierSpacing is null\n");
AssertFatal(cc->ServingCellConfigCommon->downlinkConfigCommon->frequencyInfoDL->frequencyBandList.list.array[0],"band is null\n");
long band = *cc->ServingCellConfigCommon->downlinkConfigCommon->frequencyInfoDL->frequencyBandList.list.array[0];
uint32_t ssb_offset0 = cc->ServingCellConfigCommon->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencySSB - cc->ServingCellConfigCommon->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA;
uint32_t ssb_offset0 = *cc->ServingCellConfigCommon->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencySSB - cc->ServingCellConfigCommon->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA;
int ratio;
switch (*cc->ServingCellConfigCommon->ssbSubcarrierSpacing) {
case NR_SubcarrierSpacing_kHz15:
AssertFatal(band <= 79, "Band %d is not possible for SSB with 15 kHz SCS\n",band);
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
break;
case NR_SubcarrierSpacing_kHz30:
AssertFatal(band <= 79, "Band %d is not possible for SSB with 15 kHz SCS\n",band);
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
break;
case NR_SubcarrierSpacing_kHz120:
AssertFatal(band >= 257, "Band %d is not possible for SSB with 120 kHz SCS\n",band);
ratio=8; // 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 %d is not possible for SSB with 240 kHz SCS\n",band);
ratio=16; // 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);
}
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.SsbSubcarrierOffset = 0; //kSSB
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.ssbOffsetPointA = ssb_offset0/ratio;
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.ssbOffsetPointA = ssb_offset0/(ratio*12);
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.bchPayloadFlag = 1;
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.bchPayload = ((uint32_t)cc->MIB_pdu.payload[0]) & ((1<<24)-1);
dl_req->nPDUs++;