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Commit 40d63793 authored by Francesco Mani's avatar Francesco Mani
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MAC function to schedule CSI-RS

parent 0768dda2
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Showing with 221 additions and 3 deletions
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
View file @ 40d63793
......@@ -456,9 +456,11 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
// This schedule SR
// TODO
// This schedule CSI measurement reporting
if (UE_info->active[UE_id])
// This schedule CSI-RS transmission and measurement reporting
if (UE_info->active[UE_id]){
nr_csirs_scheduling(module_idP, UE_id, frame, slot, slots_per_frame[*scc->ssbSubcarrierSpacing]);
nr_csi_meas_reporting(module_idP, UE_id, frame, slot, num_slots_per_tdd, nr_ulmix_slots, slots_per_frame[*scc->ssbSubcarrierSpacing]);
}
// This schedule RA procedure if not in phy_test mode
// Otherwise already consider 5G already connected
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
View file @ 40d63793
......@@ -1880,6 +1880,145 @@ void get_pdsch_to_harq_feedback(int Mod_idP,
}
void nr_csirs_scheduling(int Mod_idP,
int UE_id,
frame_t frame,
sub_frame_t slot,
int n_slots_frame){
int CC_id = 0;
NR_UE_info_t *UE_info = &RC.nrmac[Mod_idP]->UE_info;
NR_UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[UE_id];
NR_CellGroupConfig_t *secondaryCellGroup = UE_info->secondaryCellGroup[UE_id];
NR_CSI_MeasConfig_t *csi_measconfig = secondaryCellGroup->spCellConfig->spCellConfigDedicated->csi_MeasConfig->choice.setup;
NR_NZP_CSI_RS_Resource_t *nzpcsi;
int period, offset;
gNB_MAC_INST *gNB_mac = RC.nrmac[Mod_idP];
nfapi_nr_dl_tti_request_body_t *dl_req = &gNB_mac->DL_req[CC_id].dl_tti_request_body;
NR_BWP_Downlink_t *bwp=secondaryCellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[sched_ctrl->active_bwp->bwp_Id-1];
AssertFatal(csi_measconfig->nzp_CSI_RS_ResourceToAddModList->list.count>0,"NO CSI report configuration available");
for (int id = 0; id < csi_measconfig->nzp_CSI_RS_ResourceToAddModList->list.count; id++){
nzpcsi = csi_measconfig->nzp_CSI_RS_ResourceToAddModList->list.array[id];
NR_CSI_RS_ResourceMapping_t resourceMapping = nzpcsi->resourceMapping;
csi_period_offset(NULL,nzpcsi,&period,&offset);
if((frame*n_slots_frame+slot-offset)%period == 0) {
nfapi_nr_dl_tti_request_pdu_t *dl_tti_csirs_pdu = &dl_req->dl_tti_pdu_list[dl_req->nPDUs];
memset((void*)dl_tti_csirs_pdu,0,sizeof(nfapi_nr_dl_tti_request_pdu_t));
dl_tti_csirs_pdu->PDUType = NFAPI_NR_DL_TTI_CSI_RS_PDU_TYPE;
dl_tti_csirs_pdu->PDUSize = (uint8_t)(2+sizeof(nfapi_nr_dl_tti_csi_rs_pdu));
nfapi_nr_dl_tti_csi_rs_pdu_rel15_t *csirs_pdu_rel15 = &dl_tti_csirs_pdu->csi_rs_pdu.csi_rs_pdu_rel15;
csirs_pdu_rel15->bwp_size = NRRIV2BW(bwp->bwp_Common->genericParameters.locationAndBandwidth,275);
csirs_pdu_rel15->bwp_start = NRRIV2PRBOFFSET(bwp->bwp_Common->genericParameters.locationAndBandwidth,275);
csirs_pdu_rel15->subcarrier_spacing = bwp->bwp_Common->genericParameters.subcarrierSpacing;
if (bwp->bwp_Common->genericParameters.cyclicPrefix)
csirs_pdu_rel15->cyclic_prefix = *bwp->bwp_Common->genericParameters.cyclicPrefix;
else
csirs_pdu_rel15->cyclic_prefix = 0;
csirs_pdu_rel15->start_rb = resourceMapping.freqBand.startingRB;
csirs_pdu_rel15->nr_of_rbs = resourceMapping.freqBand.nrofRBs;
csirs_pdu_rel15->csi_type = 1; // NZP-CSI-RS
csirs_pdu_rel15->symb_l0 = resourceMapping.firstOFDMSymbolInTimeDomain;
if (resourceMapping.firstOFDMSymbolInTimeDomain2)
csirs_pdu_rel15->symb_l1 = *resourceMapping.firstOFDMSymbolInTimeDomain2;
csirs_pdu_rel15->cdm_type = resourceMapping.cdm_Type;
csirs_pdu_rel15->freq_density = resourceMapping.density.present;
if ((resourceMapping.density.present == NR_CSI_RS_ResourceMapping__density_PR_dot5)
&& (resourceMapping.density.choice.dot5 == NR_CSI_RS_ResourceMapping__density__dot5_evenPRBs))
csirs_pdu_rel15->freq_density--;
csirs_pdu_rel15->scramb_id = nzpcsi->scramblingID;
csirs_pdu_rel15->power_control_offset = nzpcsi->powerControlOffset + 8;
if (nzpcsi->powerControlOffsetSS)
csirs_pdu_rel15->power_control_offset_ss = *nzpcsi->powerControlOffsetSS;
switch(resourceMapping.frequencyDomainAllocation.present){
case NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_row1:
csirs_pdu_rel15->row = 1;
csirs_pdu_rel15->freq_domain = ((resourceMapping.frequencyDomainAllocation.choice.row1.buf[0])>>4)&0x0f;
break;
case NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_row2:
csirs_pdu_rel15->row = 2;
csirs_pdu_rel15->freq_domain = (((resourceMapping.frequencyDomainAllocation.choice.row1.buf[1]>>4)&0x0f) |
((resourceMapping.frequencyDomainAllocation.choice.row1.buf[0]<<8)&0xf0));
break;
case NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_row4:
csirs_pdu_rel15->row = 4;
csirs_pdu_rel15->freq_domain = ((resourceMapping.frequencyDomainAllocation.choice.row1.buf[0])>>5)&0x0f;
break;
case NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_other:
csirs_pdu_rel15->freq_domain = ((resourceMapping.frequencyDomainAllocation.choice.row1.buf[0])>>2)&0x0f;
// determining the row of table 7.4.1.5.3-1 in 38.211
switch(resourceMapping.nrofPorts){
case NR_CSI_RS_ResourceMapping__nrofPorts_p1:
break;
case NR_CSI_RS_ResourceMapping__nrofPorts_p2:
csirs_pdu_rel15->row = 3;
break;
case NR_CSI_RS_ResourceMapping__nrofPorts_p4:
csirs_pdu_rel15->row = 5;
break;
case NR_CSI_RS_ResourceMapping__nrofPorts_p8:
if (resourceMapping.cdm_Type == NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2)
csirs_pdu_rel15->row = 8;
else{
int num_k = 0;
for (int k=0; k<6; k++)
num_k+=(((csirs_pdu_rel15->freq_domain)>>k)&0x01);
if(num_k==4)
csirs_pdu_rel15->row = 6;
else
csirs_pdu_rel15->row = 7;
}
break;
case NR_CSI_RS_ResourceMapping__nrofPorts_p12:
if (resourceMapping.cdm_Type == NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2)
csirs_pdu_rel15->row = 10;
else
csirs_pdu_rel15->row = 9;
break;
case NR_CSI_RS_ResourceMapping__nrofPorts_p16:
if (resourceMapping.cdm_Type == NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2)
csirs_pdu_rel15->row = 12;
else
csirs_pdu_rel15->row = 11;
break;
case NR_CSI_RS_ResourceMapping__nrofPorts_p24:
if (resourceMapping.cdm_Type == NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2)
csirs_pdu_rel15->row = 14;
else{
if (resourceMapping.cdm_Type == NR_CSI_RS_ResourceMapping__cdm_Type_cdm8_FD2_TD4)
csirs_pdu_rel15->row = 15;
else
csirs_pdu_rel15->row = 13;
}
break;
case NR_CSI_RS_ResourceMapping__nrofPorts_p32:
if (resourceMapping.cdm_Type == NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2)
csirs_pdu_rel15->row = 17;
else{
if (resourceMapping.cdm_Type == NR_CSI_RS_ResourceMapping__cdm_Type_cdm8_FD2_TD4)
csirs_pdu_rel15->row = 18;
else
csirs_pdu_rel15->row = 16;
}
break;
default:
AssertFatal(1==0,"Invalid number of ports in CSI-RS resource\n");
}
break;
default:
AssertFatal(1==0,"Invalid freqency domain allocation in CSI-RS resource\n");
}
dl_req->nPDUs++;
}
}
}
uint16_t nr_get_csi_bitlen(int Mod_idP,
int UE_id,
uint8_t csi_report_id) {
......@@ -1898,8 +2037,74 @@ uint16_t nr_get_csi_bitlen(int Mod_idP,
void csi_period_offset(NR_CSI_ReportConfig_t *csirep,
NR_NZP_CSI_RS_Resource_t *nzpcsi,
int *period, int *offset) {
if(nzpcsi != NULL) {
NR_CSI_ResourcePeriodicityAndOffset_PR p_and_o = nzpcsi->periodicityAndOffset->present;
switch(p_and_o){
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots4:
*period = 4;
*offset = nzpcsi->periodicityAndOffset->choice.slots4;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots5:
*period = 5;
*offset = nzpcsi->periodicityAndOffset->choice.slots5;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots8:
*period = 8;
*offset = nzpcsi->periodicityAndOffset->choice.slots8;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots10:
*period = 10;
*offset = nzpcsi->periodicityAndOffset->choice.slots10;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots16:
*period = 16;
*offset = nzpcsi->periodicityAndOffset->choice.slots16;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots20:
*period = 20;
*offset = nzpcsi->periodicityAndOffset->choice.slots20;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots32:
*period = 32;
*offset = nzpcsi->periodicityAndOffset->choice.slots32;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots40:
*period = 40;
*offset = nzpcsi->periodicityAndOffset->choice.slots40;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots64:
*period = 64;
*offset = nzpcsi->periodicityAndOffset->choice.slots64;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots80:
*period = 80;
*offset = nzpcsi->periodicityAndOffset->choice.slots80;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots160:
*period = 160;
*offset = nzpcsi->periodicityAndOffset->choice.slots160;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots320:
*period = 320;
*offset = nzpcsi->periodicityAndOffset->choice.slots320;
break;
case NR_CSI_ResourcePeriodicityAndOffset_PR_slots640:
*period = 640;
*offset = nzpcsi->periodicityAndOffset->choice.slots640;
break;
default:
AssertFatal(1==0,"No periodicity and offset found in CSI resource");
}
}
if(csirep != NULL) {
NR_CSI_ReportPeriodicityAndOffset_PR p_and_o = csirep->reportConfigType.choice.periodic->reportSlotConfig.present;
switch(p_and_o){
......@@ -1946,6 +2151,7 @@ void csi_period_offset(NR_CSI_ReportConfig_t *csirep,
default:
AssertFatal(1==0,"No periodicity and offset resource found in CSI report");
}
}
}
......@@ -2048,7 +2254,7 @@ void nr_csi_meas_reporting(int Mod_idP,
AssertFatal(csirep->reportConfigType.choice.periodic!=NULL,"Only periodic CSI reporting is implemented currently");
int period, offset, sched_slot;
csi_period_offset(csirep,&period,&offset);
csi_period_offset(csirep,NULL,&period,&offset);
sched_slot = (period+offset)%n_slots_frame;
// prepare to schedule csi measurement reception according to 5.2.1.4 in 38.214
// preparation is done in first slot of tdd period
......
openair2/LAYER2/NR_MAC_gNB/mac_proto.h
View file @ 40d63793
......@@ -201,6 +201,12 @@ void nr_schedule_pucch(int Mod_idP,
frame_t frameP,
sub_frame_t slotP);
void nr_csirs_scheduling(int Mod_idP,
int UE_id,
frame_t frame,
sub_frame_t slot,
int n_slots_frame);
void nr_csi_meas_reporting(int Mod_idP,
int UE_id,
frame_t frameP,
......@@ -209,6 +215,10 @@ void nr_csi_meas_reporting(int Mod_idP,
int ul_slots,
int n_slots_frame);
void csi_period_offset(NR_CSI_ReportConfig_t *csirep,
NR_NZP_CSI_RS_Resource_t *nzpcsi,
int *period, int *offset);
void nr_acknack_scheduling(int Mod_idP,
int UE_id,
frame_t frameP,
......
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