X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=src%2F5gnrsch%2Fsch_rach.c;h=7cec7b8608958822885921b4be4e2878c972629b;hb=65443172dd60a6ea312bd3a15959dbf54ad7f045;hp=abca278b4d46c94ed6ce4c33888d688bbe28b4cc;hpb=8d9ebf64c8a64bf1346685833fe79970c4ef3d14;p=o-du%2Fl2.git diff --git a/src/5gnrsch/sch_rach.c b/src/5gnrsch/sch_rach.c index abca278b4..7cec7b860 100644 --- a/src/5gnrsch/sch_rach.c +++ b/src/5gnrsch/sch_rach.c @@ -31,30 +31,9 @@ /** @file sch_rach.c @brief This file implements the rach handling. */ - -#include "stdbool.h" -#include "envopt.h" /* environment options */ -#include "envdep.h" /* environment dependent */ -#include "envind.h" /* environment independent */ -#include "gen.h" /* general layer */ -#include "ssi.h" /* system service interface */ -#include "cm_tkns.h" /* Common Token Defines */ -#include "cm_llist.h" /* Common Link List Defines */ -#include "cm_hash.h" /* Common Hash List Defines */ -#include "cm_mblk.h" /* common memory link list library */ -#include "cm_lte.h" /* Common LTE Defines */ +#include "common_def.h" #include "tfu.h" #include "lrg.h" - -#include "gen.x" /* general layer typedefs */ -#include "ssi.x" /* system services typedefs */ -#include "cm5.x" /* system services */ -#include "cm_tkns.x" /* Common Token Definitions */ -#include "cm_llist.x" /* Common Link List Definitions */ -#include "cm_lib.x" /* Common Library Definitions */ -#include "cm_hash.x" /* Common Hash List Definitions */ -#include "cm_mblk.x" /* common memory link list library */ -#include "cm_lte.x" /* Common LTE Defines */ #include "tfu.x" #include "lrg.x" #include "du_log.h" @@ -63,129 +42,280 @@ #include "sch.h" #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]; +SchCb schCb[SCH_MAX_INST]; +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; - uint8_t ulCarrierIdx = 0; /* configured to 0 */ + uint8_t ulCarrierIdx = 0; /* configured to 0 */ + raRnti = (1+symbolIdx+(14*slotIdx)+(14*80*freqIdx)+(14*80*8*ulCarrierIdx)); - return raRnti; + + 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; + uint8_t ueIdx = 0; + + GET_UE_IDX(tcrnti, ueIdx); + schCb[schInst].cells[schInst]->raCb[ueIdx -1].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 crnti, \ + 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; + uint8_t mcs = 4; + uint8_t numPdschSymbols= 14; + uint16_t tbSize = 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 = cell->schUlSlotInfo[msg3SlotAlloc]->puschCurrentPrb; + tbSize = schCalcTbSize(8); /* 6 bytes msg3 and 2 bytes header */ + numRb = schCalcNumPrb(tbSize, mcs, numPdschSymbols); + + /* allocating 1 extra RB for now */ + numRb++; + /* increment PUSCH PRB */ + cell->schUlSlotInfo[msg3SlotAlloc]->puschCurrentPrb += numRb; + + for(idx=startSymb; idxschUlSlotInfo[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; + } + tbSize = 0; /* since nPrb has been incremented, recalculating tbSize */ + tbSize = schCalcTbSizeFromNPrb(numRb, mcs, numPdschSymbols); + + schUlSlotInfo->schPuschInfo->crnti = crnti; + 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 = mcs; + schUlSlotInfo->schPuschInfo->tbInfo.ndi = 1; /* new transmission */ + schUlSlotInfo->schPuschInfo->tbInfo.rv = 0; + schUlSlotInfo->schPuschInfo->tbInfo.tbSize = tbSize; /*Considering 2 PRBs */ + schUlSlotInfo->schPuschInfo->dmrsMappingType = DMRS_MAP_TYPE_A; /* Setting Type-A */ + schUlSlotInfo->schPuschInfo->nrOfDmrsSymbols = NUM_DMRS_SYMBOLS; + schUlSlotInfo->schPuschInfo->dmrsAddPos = DMRS_ADDITIONAL_POS; + + *msg3StartRb = startRb; + *msg3NumRb = numRb; + + return ROK; +} + + + +/** + * @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]; + RarInfo *rarInfo = NULLP; + uint16_t raRnti = 0; + uint16_t rarSlot = 0; + uint16_t msg3StartRb; + uint8_t msg3NumRb; + uint8_t ret = ROK; - 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; - - if(sfnSlot % cell->cellCfg.sib1SchCfg.sib1RepetitionPeriod == 0) - { - /* the next slot has SIB1 occasion, so send it after 2 slot */ - rarDelay = 2; - } - else - { - /* send RAR in the next slot */ - //rarDelay = 1; - rarDelay = 2; - } - - if((slot+rarDelay) % SCH_NUM_SLOTS == 0) - { - sfn = (sfn+1) % SCH_MAX_SFN; - } + /* RAR will sent with a delay of RAR_DELAY */ + rarSlot = (rachInd->timingInfo.slot+RAR_DELAY+PHY_DELTA)%SCH_NUM_SLOTS; - slot = ((slot + rarDelay) % SCH_NUM_SLOTS); + SchDlSlotInfo *schDlSlotInfo = cell->schDlSlotInfo[rarSlot]; /* RAR will sent in the next slot */ - SchDlAlloc *dlAlloc = cell->dlAlloc[slot]; /* RAR will sent in the next slot */ - RarInfo *rarInfo = &(dlAlloc->rarInfo); + /* 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; + } - /* rar message presense in next slot ind and will be scheduled */ - dlAlloc->rarPres = true; + schDlSlotInfo->rarInfo = rarInfo; /* 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); + raRnti = calculateRaRnti(rachInd->symbolIdx,rachInd->slotIdx,rachInd->freqIdx); - /* 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 */ + /* create raCb at SCH */ + createSchRaCb(rachInd->crnti,schInst); - return ROK; + /* allocate resources for msg3 */ + ret = schAllocMsg3Pusch(schInst, rarSlot, rachInd->crnti, &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; } +/** + * @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}; + 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; + PdcchCfg *pdcch = &rarAlloc->rarPdcchCfg; + PdschCfg *pdsch = &rarAlloc->rarPdschCfg; + BwpCfg *bwp = &rarAlloc->bwp; - coreset0Idx = 0; - searchSpace0Idx = 0; + coreset0Idx = initialBwp->pdcchCommon.commonSearchSpace.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.commonSearchSpace.monitoringSymbol & mask) + break; + else + mask = mask>>1; + } /* calculate the PRBs */ - freqDomResourceAlloc( ((offsetPointA-offset)/6), (numRbs/6), FreqDomainResource); + freqDomRscAllocType0(((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 = MAX_NUM_RB; /* whole of BW */ - pdcch->pdcchBwpCfg.BWPStart = 0; - pdcch->pdcchBwpCfg.subcarrierSpacing = 0; /* 15Khz */ - pdcch->pdcchBwpCfg.cyclicPrefix = 0; /* normal */ - pdcch->coreset0Cfg.startSymbolIndex = firstSymbol; - pdcch->coreset0Cfg.durationSymbols = numSymbols; - memcpy(pdcch->coreset0Cfg.freqDomainResource,FreqDomainResource,6); - pdcch->coreset0Cfg.cceRegMappingType = 1; /* coreset0 is always interleaved */ - pdcch->coreset0Cfg.regBundleSize = 6; /* spec-38.211 sec 7.3.2.2 */ - pdcch->coreset0Cfg.interleaverSize = 2; /* spec-38.211 sec 7.3.2.2 */ - pdcch->coreset0Cfg.coreSetType = 0; - pdcch->coreset0Cfg.shiftIndex = pci; - pdcch->coreset0Cfg.precoderGranularity = 0; /* sameAsRegBundle */ + pdcch->coresetCfg.startSymbolIndex = firstSymbol; + pdcch->coresetCfg.durationSymbols = numSymbols; + memcpy(pdcch->coresetCfg.freqDomainResource, FreqDomainResource, FREQ_DOM_RSRC_SIZE); + pdcch->coresetCfg.cceRegMappingType = 1; /* coreset0 is always interleaved */ + pdcch->coresetCfg.regBundleSize = 6; /* spec-38.211 sec 7.3.2.2 */ + pdcch->coresetCfg.interleaverSize = 2; /* spec-38.211 sec 7.3.2.2 */ + pdcch->coresetCfg.coreSetType = 0; + pdcch->coresetCfg.shiftIndex = pci; + pdcch->coresetCfg.precoderGranularity = 0; /* sameAsRegBundle */ pdcch->numDlDci = 1; 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; @@ -194,24 +324,23 @@ uint8_t schFillRar(RarAlloc *rarAlloc, uint16_t raRnti, uint16_t pci, uint8_t of pdcch->dci.beamPdcchInfo.prg[0].beamIdx[0] = 0; pdcch->dci.txPdcchPower.powerValue = 0; pdcch->dci.txPdcchPower.powerControlOffsetSS = 0; - pdcch->dci.pdschCfg = pdsch; + pdcch->dci.pdschCfg = pdsch; /* fill the PDSCH PDU */ - uint8_t cwCount = 0; + uint8_t cwCount = 0; 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->numCodewords = 1; - for(cwCount = 0; cwCount < pdsch->numCodewords; cwCount++) - { + 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].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 = 768; + tbSize = schCalcTbSize(10); /* 8 bytes RAR and 2 bytes padding */ + pdsch->codeword[cwCount].tbSize = tbSize; } pdsch->dataScramblingId = pci; pdsch->numLayers = 1; @@ -223,16 +352,15 @@ uint8_t schFillRar(RarAlloc *rarAlloc, uint16_t raRnti, uint16_t pci, uint8_t of 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->dmrs.mappingType = DMRS_MAP_TYPE_A; /* Type-A */ + pdsch->dmrs.nrOfDmrsSymbols = NUM_DMRS_SYMBOLS; + pdsch->dmrs.dmrsAddPos = DMRS_ADDITIONAL_POS; + 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; @@ -240,8 +368,8 @@ uint8_t schFillRar(RarAlloc *rarAlloc, uint16_t raRnti, uint16_t pci, uint8_t of pdsch->beamPdschInfo.prg[0].beamIdx[0] = 0; pdsch->txPdschPower.powerControlOffset = 0; pdsch->txPdschPower.powerControlOffsetSS = 0; - - return ROK; + + return ROK; } /**********************************************************************