X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=src%2F5gnrsch%2Fsch_rach.c;h=69d2a62dfb8ef68e73297f0af977979d30f00ceb;hb=c4b8f7a0c5c6491323c6a87b2d1031d61ee0188e;hp=6ff50ac88dd2821b9fd2925c278b9efb24d6f165;hpb=8340c342ebcfc82193c3f66e7f15047c1e37399b;p=o-du%2Fl2.git diff --git a/src/5gnrsch/sch_rach.c b/src/5gnrsch/sch_rach.c index 6ff50ac88..69d2a62df 100644 --- a/src/5gnrsch/sch_rach.c +++ b/src/5gnrsch/sch_rach.c @@ -64,9 +64,22 @@ #include "sch_utils.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. + * + * @details + * + * Function : calculateRaRnti + * + * This function calculates ra-rnti + * + * @param[in] symbol index + * @param[in] slot index + * @param[in] frequency index + * @return ra-rnti + **/ uint16_t calculateRaRnti(uint8_t symbolIdx, uint8_t slotIdx, uint8_t freqIdx) { uint16_t raRnti = 0; @@ -75,103 +88,215 @@ uint16_t calculateRaRnti(uint8_t symbolIdx, uint8_t slotIdx, uint8_t freqIdx) return raRnti; } +/** + * @brief create raCb function. + * + * @details + * + * Function : createSchRaCb + * + * This function create raCb + * + * @param[in] tcrnti + * @param[in] shed instance + * @return void + **/ void createSchRaCb(uint16_t tcrnti, Inst schInst) { schCb[schInst].cells[schInst]->raCb[0].tcrnti = tcrnti; } -int schProcessRachInd(RachIndInfo *rachInd, Inst schInst) +/** + * @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 = schCb[schInst].cells[schInst]; + SchCellCb *cell = NULLP; + SchUlAlloc *ulAlloc = 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 */ - uint16_t sfn = rachInd->timingInfo.sfn; /* get the current timing info */ - uint16_t slot = rachInd->timingInfo.slot; - uint16_t sfnSlot = ((sfn * 10) + slot + 1); /* scheduled in the next slot */ - uint8_t rarDelay = 0; + /* allocating 1 extra RB for now */ + numRb++; - if(sfnSlot % cell->cellCfg.sib1SchCfg.sib1RepetitionPeriod == 0) + for(idx=startSymb; idxulAlloc[msg3SlotAlloc]->assignedPrb[idx] = startRb + numRb; } - else + ulAlloc = cell->ulAlloc[msg3SlotAlloc]; + + SCH_ALLOC(ulAlloc->schPuschInfo, sizeof(SchPuschInfo)); + if(!ulAlloc->schPuschInfo) { - /* send RAR in the next slot */ - //rarDelay = 1; - rarDelay = 2; + DU_LOG("SCH: Memory allocation failed in schAllocMsg3Pusch"); + return RFAILED; } + ulAlloc->schPuschInfo->harqProcId = SCH_HARQ_PROC_ID; + ulAlloc->schPuschInfo->resAllocType = SCH_ALLOC_TYPE_1; + ulAlloc->schPuschInfo->fdAlloc.startPrb = startRb; + ulAlloc->schPuschInfo->fdAlloc.numPrb = numRb; + ulAlloc->schPuschInfo->tdAlloc.startSymb = startSymb; + ulAlloc->schPuschInfo->tdAlloc.numSymb = symbLen; + ulAlloc->schPuschInfo->tbInfo.mcs = 4; + ulAlloc->schPuschInfo->tbInfo.ndi = 1; /* new transmission */ + ulAlloc->schPuschInfo->tbInfo.rv = 0; + ulAlloc->schPuschInfo->tbInfo.tbSize = 24; /*Considering 2 PRBs */ + + *msg3StartRb = startRb; + *msg3NumRb = numRb; + + return ROK; +} + - if((slot+rarDelay) % SCH_NUM_SLOTS == 0) - { - sfn = (sfn+1) % SCH_MAX_SFN; - } - slot = ((slot + rarDelay) % SCH_NUM_SLOTS); +/** + * @brief process rach indication function. + * + * @details + * + * Function : schProcessRachInd + * + * This function process rach indication + * + * @param[in] rachInd parameters + * @param[in] shed instance + * @return ROK + **/ +uint8_t schProcessRachInd(RachIndInfo *rachInd, Inst schInst) +{ + SchCellCb *cell = schCb[schInst].cells[schInst]; + uint16_t raRnti = 0; + uint16_t slot; + uint16_t msg3StartRb; + uint8_t msg3NumRb; + uint8_t ret = ROK; + /* RAR will sent in the next slot */ + slot = (rachInd->timingInfo.slot+SCHED_DELTA+RAR_DELAY)%SCH_NUM_SLOTS; - SchDlAlloc *dlAlloc = cell->dlAlloc[slot]; /* RAR will sent in the next slot */ + SchDlAlloc *dlAlloc = cell->dlAlloc[slot]; RarInfo *rarInfo = &(dlAlloc->rarInfo); /* rar message presense in next slot ind and will be scheduled */ dlAlloc->rarPres = true; /* calculate the ra-rnti value */ - uint16_t raRnti = 0; 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 */ + /* allocate resources for msg3 */ + ret = schAllocMsg3Pusch(schInst, slot, &msg3StartRb, &msg3NumRb); + if(ret == ROK) + { - return ROK; + /* fill RAR info */ + rarInfo->raRnti = raRnti; + rarInfo->tcrnti = rachInd->crnti; + rarInfo->RAPID = rachInd->preambleIdx; + rarInfo->ta = rachInd->timingAdv; + rarInfo->msg3StartRb = msg3StartRb; + rarInfo->msg3NumRb = msg3NumRb; + } + return ret; } -int schFillRar(RarAlloc *rarAlloc, uint16_t raRnti, uint16_t pci, uint8_t offsetPointA) +/** + * @brief fill RAR info function. + * + * @details + * + * Function : calculateRaRnti + * + * This function fills pdcch and pdsch info for RAR + * + * @param[in] rar Allocation info + * @param[in] ra-rnti + * @param[in] PCI + * @param[in] offset to pointA to determine freq alloc + * @return ROK + **/ +uint8_t schFillRar(RarAlloc *rarAlloc, uint16_t raRnti, uint16_t pci, uint8_t offsetPointA) { + Inst inst = 0; uint8_t coreset0Idx = 0; - uint8_t searchSpace0Idx = 0; - //uint8_t ssbMuxPattern = 0; uint8_t numRbs = 0; + uint8_t firstSymbol = 0; uint8_t numSymbols = 0; uint8_t offset = 0; - //uint8_t oValue = 0; - //uint8_t numSearchSpacePerSlot = 0; - //uint8_t mValue = 0; - uint8_t firstSymbol = 0; /* need to calculate using formula mentioned in 38.213 */ uint8_t FreqDomainResource[6] = {0}; + SchBwpDlCfg *initialBwp = &schCb[inst].cells[inst]->cellCfg.schInitialDlBwp; PdcchCfg *pdcch = &rarAlloc->rarPdcchCfg; PdschCfg *pdsch = &rarAlloc->rarPdschCfg; - coreset0Idx = 0; - searchSpace0Idx = 0; + coreset0Idx = initialBwp->pdcchCommon.raSearchSpace.coresetId; /* derive the sib1 coreset0 params from table 13-1 spec 38.213 */ - //ssbMuxPattern = coresetIdxTable[coreset0Idx][0]; numRbs = coresetIdxTable[coreset0Idx][1]; numSymbols = coresetIdxTable[coreset0Idx][2]; offset = coresetIdxTable[coreset0Idx][3]; - /* derive the search space params from table 13-11 spec 38.213 */ - //oValue = searchSpaceIdxTable[searchSpace0Idx][0]; - //numSearchSpacePerSlot = searchSpaceIdxTable[searchSpace0Idx][1]; - //mValue = searchSpaceIdxTable[searchSpace0Idx][2]; - firstSymbol = searchSpaceIdxTable[searchSpace0Idx][3]; + /* calculate time domain parameters */ + // note: since slot value is made sl1, RAR can be sent at all slots + uint16_t mask = 0x2000; + for(firstSymbol=0; firstSymbol<14;firstSymbol++) + { + if(initialBwp->pdcchCommon.raSearchSpace.monitoringSymbol & mask) + break; + else + mask = mask>>1; + } /* calculate the PRBs */ - freqDomResourceAlloc( ((offsetPointA-offset)/6), (numRbs/6), FreqDomainResource); + calculatePRB( ((offsetPointA-offset)/6), (numRbs/6), FreqDomainResource); /* fill the PDCCH PDU */ - pdcch->pdcchBwpCfg.BWPSize = MAX_NUM_RB; /* whole of BW */ - pdcch->pdcchBwpCfg.BWPStart = 0; - pdcch->pdcchBwpCfg.subcarrierSpacing = 0; /* 15Khz */ - pdcch->pdcchBwpCfg.cyclicPrefix = 0; /* normal */ + 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); @@ -185,7 +310,7 @@ int schFillRar(RarAlloc *rarAlloc, uint16_t raRnti, uint16_t pci, uint8_t offse pdcch->dci.rnti = raRnti; /* RA-RNTI */ pdcch->dci.scramblingId = pci; pdcch->dci.scramblingRnti = 0; - pdcch->dci.cceIndex = 0; + pdcch->dci.cceIndex = 4; /* considering SIB1 is sent at cce 0-1-2-3 */ pdcch->dci.aggregLevel = 4; pdcch->dci.beamPdcchInfo.numPrgs = 1; pdcch->dci.beamPdcchInfo.prgSize = 1; @@ -201,17 +326,18 @@ int schFillRar(RarAlloc *rarAlloc, uint16_t raRnti, uint16_t pci, uint8_t offse pdsch->pduBitmap = 0; /* PTRS and CBG params are excluded */ pdsch->rnti = raRnti; /* RA-RNTI */ pdsch->pduIndex = 0; - pdsch->pdschBwpCfg.BWPSize = MAX_NUM_RB; /* whole of BW */ - pdsch->pdschBwpCfg.BWPStart = 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; /* msc configured to 4 */ + pdsch->codeword[cwCount].mcsIndex = 4; /* mcs configured to 4 */ pdsch->codeword[cwCount].mcsTable = 0; /* notqam256 */ pdsch->codeword[cwCount].rvIndex = 0; - pdsch->codeword[cwCount].tbSize = 768; + pdsch->codeword[cwCount].tbSize = 80/8; /* 38.214: Table 5.1.3.2-1, + devided by 8 to get the value in bytes */ } pdsch->dataScramblingId = pci; pdsch->numLayers = 1; @@ -231,8 +357,8 @@ int schFillRar(RarAlloc *rarAlloc, uint16_t raRnti, uint16_t pci, uint8_t offse * 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->timeAlloc.startSymbolIndex = initialBwp->pdschCommon.startSymbol; + pdsch->timeAlloc.numSymbols = initialBwp->pdschCommon.lengthSymbol; pdsch->beamPdschInfo.numPrgs = 1; pdsch->beamPdschInfo.prgSize = 1; pdsch->beamPdschInfo.digBfInterfaces = 0;