#include "mac_sch_interface.h"
#include "sch.h"
#include "sch_utils.h"
+#include "common_def.h"
extern SchCb schCb[SCH_MAX_INST];
-extern int8_t coresetIdxTable[MAX_CORESET_INDEX][4];
-extern int8_t searchSpaceIdxTable[MAX_SEARCH_SPACE_INDEX][4];
+extern uint8_t puschDeltaTable[MAX_MU_PUSCH];
/**
* @brief calculate ra-rnti function.
schCb[schInst].cells[schInst]->raCb[0].tcrnti = tcrnti;
}
+/**
+ * @brief resource allocation for msg3 PUSCH
+ *
+ * @details
+ *
+ * Function : schAllocMsg3Pusch
+ *
+ * This function handles msg3 PUSCH allocation
+ *
+ * @param[in] Inst schInst, SCH instance
+ * @param[in] slot, current slot
+ * @param[out] msg3StartRb
+ * @param[out] msg3NumRb
+ * @return void
+ **/
+uint8_t schAllocMsg3Pusch(Inst schInst, uint16_t slot, uint16_t *msg3StartRb,
+uint8_t *msg3NumRb)
+{
+ SchCellCb *cell = NULLP;
+ SchUlSlotInfo *schUlSlotInfo = NULLP;
+ uint8_t puschMu = 0;
+ uint8_t msg3SlotAlloc = 0;
+ uint8_t delta = 0;
+ uint8_t k2 = 0;
+ uint8_t startSymb = 0;
+ uint8_t symbLen = 0;
+ uint8_t startRb = 0;
+ uint8_t numRb = 0;
+ uint8_t idx = 0;
+
+
+ cell = schCb[schInst].cells[schInst];
+// puschMu = cell->cellCfg.puschMu;
+ delta = puschDeltaTable[puschMu];
+ k2 = cell->cellCfg.schInitialUlBwp.puschCommon.k2;
+ startSymb = cell->cellCfg.schInitialUlBwp.puschCommon.startSymbol;
+ symbLen = cell->cellCfg.schInitialUlBwp.puschCommon.lengthSymbol;
+
+ /* Slot allocation for msg3 based on 38.214 section 6.1.2.1 */
+ msg3SlotAlloc = slot + k2 + delta;
+ msg3SlotAlloc = msg3SlotAlloc % SCH_NUM_SLOTS;
+
+ startRb = PUSCH_START_RB;
+
+ /* formula used for calculation of rbSize, 38.214 section 6.1.4.2
+ * Ninfo = S.Nre.R.Qm.v
+ * Nre' = Nsc.NsymPdsch-NdmrsSymb-Noh
+ * Nre = min(156,Nre').nPrb */
+ numRb = 1; /* based on above calculation */
+
+ /* allocating 1 extra RB for now */
+ numRb++;
+
+ for(idx=startSymb; idx<symbLen; idx++)
+ {
+ cell->schUlSlotInfo[msg3SlotAlloc]->assignedPrb[idx] = startRb + numRb;
+ }
+ schUlSlotInfo = cell->schUlSlotInfo[msg3SlotAlloc];
+
+ SCH_ALLOC(schUlSlotInfo->schPuschInfo, sizeof(SchPuschInfo));
+ if(!schUlSlotInfo->schPuschInfo)
+ {
+ DU_LOG("SCH: Memory allocation failed in schAllocMsg3Pusch");
+ return RFAILED;
+ }
+ schUlSlotInfo->schPuschInfo->harqProcId = SCH_HARQ_PROC_ID;
+ schUlSlotInfo->schPuschInfo->resAllocType = SCH_ALLOC_TYPE_1;
+ schUlSlotInfo->schPuschInfo->fdAlloc.startPrb = startRb;
+ schUlSlotInfo->schPuschInfo->fdAlloc.numPrb = numRb;
+ schUlSlotInfo->schPuschInfo->tdAlloc.startSymb = startSymb;
+ schUlSlotInfo->schPuschInfo->tdAlloc.numSymb = symbLen;
+ schUlSlotInfo->schPuschInfo->tbInfo.mcs = 4;
+ schUlSlotInfo->schPuschInfo->tbInfo.ndi = 1; /* new transmission */
+ schUlSlotInfo->schPuschInfo->tbInfo.rv = 0;
+ schUlSlotInfo->schPuschInfo->tbInfo.tbSize = 24; /*Considering 2 PRBs */
+
+ *msg3StartRb = startRb;
+ *msg3NumRb = numRb;
+
+ return ROK;
+}
+
+
+
/**
* @brief process rach indication function.
*
uint8_t schProcessRachInd(RachIndInfo *rachInd, Inst schInst)
{
SchCellCb *cell = schCb[schInst].cells[schInst];
+ RarInfo *rarInfo = NULLP;
uint16_t raRnti = 0;
+ uint16_t rarSlot = 0;
+ uint16_t msg3StartRb;
+ uint8_t msg3NumRb;
+ uint8_t ret = ROK;
+
+ /* RAR will sent with a delay of RAR_DELAY */
+ rarSlot = (rachInd->timingInfo.slot+RAR_DELAY+PHY_DELTA)%SCH_NUM_SLOTS;
- SchDlAlloc *dlAlloc =
- cell->dlAlloc[(rachInd->timingInfo.slot+SCHED_DELTA+RAR_DELAY)%SCH_NUM_SLOTS]; /* RAR will sent in the next slot */
- RarInfo *rarInfo = &(dlAlloc->rarInfo);
+ SchDlSlotInfo *schDlSlotInfo = cell->schDlSlotInfo[rarSlot]; /* RAR will sent in the next slot */
- /* rar message presense in next slot ind and will be scheduled */
- dlAlloc->rarPres = true;
+ /* Allocate the rarInfo, this pointer will be checked at schProcessSlotInd function */
+ SCH_ALLOC(rarInfo, sizeof(RarInfo));
+ if(rarInfo == NULLP)
+ {
+ DU_LOG("\nMAC: Memory Allocation failed for rarInfo");
+ return RFAILED;
+ }
+ schDlSlotInfo->rarInfo = rarInfo;
+
/* calculate the ra-rnti value */
raRnti = calculateRaRnti(rachInd->symbolIdx,rachInd->slotIdx,rachInd->freqIdx);
/* create raCb at SCH */
createSchRaCb(rachInd->crnti,schInst);
- /* fill RAR info */
- rarInfo->raRnti = raRnti;
- rarInfo->tcrnti = rachInd->crnti;
- rarInfo->RAPID = rachInd->preambleIdx;
- rarInfo->ta = rachInd->timingAdv;
- rarInfo->msg3StartRb = 0; /* will be set during implementation of msg3 */
- rarInfo->msg3NumRb = 0; /* will be set during implementation of msg3 */
-
- return ROK;
+ /* allocate resources for msg3 */
+ ret = schAllocMsg3Pusch(schInst, rarSlot, &msg3StartRb, &msg3NumRb);
+ if(ret == ROK)
+ {
+ /* fill RAR info */
+ rarInfo->raRnti = raRnti;
+ rarInfo->tcrnti = rachInd->crnti;
+ rarInfo->RAPID = rachInd->preambleIdx;
+ rarInfo->ta = rachInd->timingAdv;
+ rarInfo->msg3FreqAlloc.startPrb = msg3StartRb;
+ rarInfo->msg3FreqAlloc.numPrb = msg3NumRb;
+ }
+ return ret;
}
/**
uint8_t numSymbols = 0;
uint8_t offset = 0;
uint8_t FreqDomainResource[6] = {0};
- SchBwpDlCfg *initialBwp = &schCb[inst].cells[inst]->cellCfg.schInitialBwp;
+ uint16_t tbSize = 0;
+ uint8_t numPdschSymbols = 12; /* considering pdsch region from 2 to 13 */
+ uint8_t mcs = 4; /* MCS fixed to 4 */
+
+ SchBwpDlCfg *initialBwp = &schCb[inst].cells[inst]->cellCfg.schInitialDlBwp;
PdcchCfg *pdcch = &rarAlloc->rarPdcchCfg;
PdschCfg *pdsch = &rarAlloc->rarPdschCfg;
+ BwpCfg *bwp = &rarAlloc->bwp;
- coreset0Idx = initialBwp->pdcchCommon.raSearchSpace.coresetId;
+ coreset0Idx = initialBwp->pdcchCommon.commonSearchSpace.coresetId;
/* derive the sib1 coreset0 params from table 13-1 spec 38.213 */
numRbs = coresetIdxTable[coreset0Idx][1];
uint16_t mask = 0x2000;
for(firstSymbol=0; firstSymbol<14;firstSymbol++)
{
- if(initialBwp->pdcchCommon.raSearchSpace.monitoringSymbol & mask)
+ if(initialBwp->pdcchCommon.commonSearchSpace.monitoringSymbol & mask)
break;
else
mask = mask>>1;
}
/* calculate the PRBs */
- freqDomResourceAlloc( ((offsetPointA-offset)/6), (numRbs/6), FreqDomainResource);
+ schAllocFreqDomRscType0(((offsetPointA-offset)/6), (numRbs/6), FreqDomainResource);
+
+ /* fill BWP */
+ bwp->freqAlloc.numPrb = initialBwp->bwp.freqAlloc.numPrb;
+ bwp->freqAlloc.startPrb = initialBwp->bwp.freqAlloc.startPrb;
+ bwp->subcarrierSpacing = initialBwp->bwp.scs;
+ bwp->cyclicPrefix = initialBwp->bwp.cyclicPrefix;
/* fill the PDCCH PDU */
- pdcch->pdcchBwpCfg.BWPSize = initialBwp->bwp.numPrb;
- pdcch->pdcchBwpCfg.BWPStart = initialBwp->bwp.firstPrb;
- pdcch->pdcchBwpCfg.subcarrierSpacing = initialBwp->bwp.scs;
- pdcch->pdcchBwpCfg.cyclicPrefix = initialBwp->bwp.cyclicPrefix;
pdcch->coreset0Cfg.startSymbolIndex = firstSymbol;
pdcch->coreset0Cfg.durationSymbols = numSymbols;
memcpy(pdcch->coreset0Cfg.freqDomainResource,FreqDomainResource,6);
pdsch->pduBitmap = 0; /* PTRS and CBG params are excluded */
pdsch->rnti = raRnti; /* RA-RNTI */
pdsch->pduIndex = 0;
- pdsch->pdschBwpCfg.BWPSize = initialBwp->bwp.numPrb;
- pdsch->pdschBwpCfg.BWPStart = initialBwp->bwp.firstPrb;
pdsch->numCodewords = 1;
for(cwCount = 0; cwCount < pdsch->numCodewords; cwCount++)
{
pdsch->codeword[cwCount].targetCodeRate = 308;
pdsch->codeword[cwCount].qamModOrder = 2;
- pdsch->codeword[cwCount].mcsIndex = 4; /* mcs configured to 4 */
- pdsch->codeword[cwCount].mcsTable = 0; /* notqam256 */
+ pdsch->codeword[cwCount].mcsIndex = mcs; /* mcs configured to 4 */
+ pdsch->codeword[cwCount].mcsTable = 0; /* notqam256 */
pdsch->codeword[cwCount].rvIndex = 0;
- pdsch->codeword[cwCount].tbSize = 80/8; /* 38.214: Table 5.1.3.2-1,
- devided by 8 to get the value in bytes */
+ tbSize = schCalcTbSize(10); /* 8 bytes RAR and 2 bytes padding */
+ pdsch->codeword[cwCount].tbSize = tbSize;
}
pdsch->dataScramblingId = pci;
pdsch->numLayers = 1;
pdsch->dmrs.scid = 0;
pdsch->dmrs.numDmrsCdmGrpsNoData = 1;
pdsch->dmrs.dmrsPorts = 0;
- pdsch->freqAlloc.resourceAlloc = 1; /* RAT type-1 RIV format */
- pdsch->freqAlloc.rbStart = offset + SCH_SSB_PRB_DURATION; /* the RB numbering starts from coreset0, and PDSCH is always above SSB */
- /* formula used for calculation of rbSize, 38.213 section 5.1.3.2 *
- * Ninfo = S . Nre . R . Qm . v *
- * Nre' = Nsc . NsymPdsch - NdmrsSymb - Noh *
- * Nre = min(156,Nre') . nPrb */
- pdsch->freqAlloc.rbSize = 1; /* This value is calculated from above formulae */
- pdsch->freqAlloc.vrbPrbMapping = 0; /* non-interleaved */
- pdsch->timeAlloc.startSymbolIndex = 2; /* spec-38.214, Table 5.1.2.1-1 */
- pdsch->timeAlloc.numSymbols = 12;
+ pdsch->pdschFreqAlloc.resourceAllocType = 1; /* RAT type-1 RIV format */
+ pdsch->pdschFreqAlloc.freqAlloc.startPrb = offset + SCH_SSB_NUM_PRB; /* the RB numbering starts from coreset0, and PDSCH is always above SSB */
+ pdsch->pdschFreqAlloc.freqAlloc.numPrb = schCalcNumPrb(tbSize,mcs,numPdschSymbols);
+ pdsch->pdschFreqAlloc.vrbPrbMapping = 0; /* non-interleaved */
+ pdsch->pdschTimeAlloc.timeAlloc.startSymb = initialBwp->pdschCommon.startSymbol;
+ pdsch->pdschTimeAlloc.timeAlloc.numSymb = initialBwp->pdschCommon.lengthSymbol;
pdsch->beamPdschInfo.numPrgs = 1;
pdsch->beamPdschInfo.prgSize = 1;
pdsch->beamPdschInfo.digBfInterfaces = 0;
Code Review / o-du / l2.git / blobdiff