X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=src%2F5gnrsch%2Fsch_common.c;h=6c00b57e9fcb268c5094ed7088e46ff57f68d70b;hb=134974ec70ab6e0501889e5d162a3b0c806c3bdc;hp=8907fe978e534827102b6b13785989403cbf257b;hpb=7ca62f021bfcd2929e090c2060102f3fc5be5b22;p=o-du%2Fl2.git diff --git a/src/5gnrsch/sch_common.c b/src/5gnrsch/sch_common.c index 8907fe978..6c00b57e9 100644 --- a/src/5gnrsch/sch_common.c +++ b/src/5gnrsch/sch_common.c @@ -60,8 +60,18 @@ File: sch_common.c #include "du_app_mac_inf.h" #include "mac_sch_interface.h" #include "sch.h" +#include "sch_utils.h" extern SchCb schCb[SCH_MAX_INST]; +extern uint16_t prachCfgIdxTable[MAX_PRACH_CONFIG_IDX][8]; +extern uint16_t numRbForPrachTable[MAX_RACH_NUM_RB_IDX][5]; + +SchMacUlSchInfoFunc schMacUlSchInfoOpts[] = +{ + packSchMacUlSchInfo, + MacProcUlSchInfo, + packSchMacUlSchInfo +}; /** * @brief Time domain allocation for SSB @@ -72,8 +82,7 @@ extern SchCb schCb[SCH_MAX_INST]; * * This function handles common scheduling for DL * - * @param[in] schCellCb *cell, cell cb - * @param[in] DlBrdcstAlloc *dlBrdcstAlloc, DL brdcst allocation + * @param[in] uint8_t scs, uint8_t *ssbStartSym * @return void **/ void ssbDlTdAlloc(uint8_t scs, uint8_t *ssbStartSymb) @@ -98,12 +107,13 @@ void ssbDlTdAlloc(uint8_t scs, uint8_t *ssbStartSymb) DU_LOG("\nSCS %d is currently not supported", scs); } } + /** * @brief common resource allocation for SSB * * @details * - * Function : schCmnDlAlloc + * Function : schBroadcastAlloc * * This function handles common scheduling for DL * @@ -111,7 +121,8 @@ void ssbDlTdAlloc(uint8_t scs, uint8_t *ssbStartSymb) * @param[in] DlBrdcstAlloc *dlBrdcstAlloc, DL brdcst allocation * @return void **/ -uint8_t schCmnDlAlloc(SchCellCb *cell, DlBrdcstAlloc *dlBrdcstAlloc) +uint8_t schBroadcastAlloc(SchCellCb *cell, DlBrdcstAlloc *dlBrdcstAlloc, + uint16_t slot) { /* schedule SSB */ uint8_t scs, ssbStartPrb, ssbStartSymb, idx; @@ -119,12 +130,11 @@ uint8_t schCmnDlAlloc(SchCellCb *cell, DlBrdcstAlloc *dlBrdcstAlloc) SchDlAlloc *dlAlloc; SsbInfo ssbInfo; - dlAlloc = cell->dlAlloc[cell->slotInfo.slot]; + dlAlloc = cell->dlAlloc[slot]; if(dlBrdcstAlloc->ssbTrans) { scs = cell->cellCfg.ssbSchCfg.scsCommon; - ssbStartPrb = \ - ((cell->cellCfg.ssbSchCfg.ssbSubcOffset)-(cell->cellCfg.ssbSchCfg.ssbOffsetPointA))/SCH_NUM_SC_PRB; + ssbStartPrb = cell->cellCfg.ssbSchCfg.ssbOffsetPointA; memset(ssbStartSymbArr, 0, SCH_MAX_SSB_BEAM); ssbDlTdAlloc(scs, ssbStartSymbArr); @@ -133,10 +143,10 @@ uint8_t schCmnDlAlloc(SchCellCb *cell, DlBrdcstAlloc *dlBrdcstAlloc) for(idx=0; idxssbIdxSupported; idx++) { ssbInfo.ssbIdx = idx; - ssbInfo.fdAlloc.ssbStartPrbIdx = ssbStartPrb; - ssbInfo.fdAlloc.ssbPrbDuration = SCH_SSB_PRB_DURATION; - ssbInfo.tdAlloc.ssbStartSymbIdx = ssbStartSymb; - ssbInfo.tdAlloc.ssbSymbolDuration = SCH_SSB_SYMB_DURATION; + ssbInfo.fdAlloc.startPrb = ssbStartPrb; + ssbInfo.fdAlloc.numPrb = SCH_SSB_PRB_DURATION; + ssbInfo.tdAlloc.startSymb = ssbStartSymb; + ssbInfo.tdAlloc.numSymb = SCH_SSB_SYMB_DURATION; dlBrdcstAlloc->ssbInfo[idx] = ssbInfo; dlAlloc->ssbInfo[idx] = ssbInfo; @@ -146,7 +156,7 @@ uint8_t schCmnDlAlloc(SchCellCb *cell, DlBrdcstAlloc *dlBrdcstAlloc) dlAlloc->ssbIdxSupported = dlBrdcstAlloc->ssbIdxSupported; for(idx=ssbStartSymb; idxassignedPrb[idx] = SCH_SSB_PRB_DURATION; + dlAlloc->assignedPrb[idx] = ssbStartPrb + SCH_SSB_PRB_DURATION + 1; /* +1 for kSsb */ } } @@ -154,12 +164,305 @@ uint8_t schCmnDlAlloc(SchCellCb *cell, DlBrdcstAlloc *dlBrdcstAlloc) /* SIB1 allocation */ if(dlBrdcstAlloc->sib1Trans) { - memcpy(&dlBrdcstAlloc->sib1Alloc.sib1PdcchCfg, &cell->cellCfg.sib1SchCfg.sib1PdcchCfg, sizeof(Sib1PdcchCfg)); - memcpy(&dlBrdcstAlloc->sib1Alloc.sib1PdschCfg, &cell->cellCfg.sib1SchCfg.sib1PdschCfg, sizeof(Sib1PdschCfg)); + dlAlloc->sib1Pres = true; + for(idx=0; idxassignedPrb[idx] = ssbStartPrb + SCH_SSB_PRB_DURATION + 1 + 10; /* 10 PRBs for sib1 */ + } + memcpy(&dlBrdcstAlloc->sib1Alloc.sib1PdcchCfg, &cell->cellCfg.sib1SchCfg.sib1PdcchCfg, sizeof(PdcchCfg)); + memcpy(&dlBrdcstAlloc->sib1Alloc.sib1PdschCfg, &cell->cellCfg.sib1SchCfg.sib1PdschCfg, sizeof(PdschCfg)); } return ROK; } +/******************************************************************* + * + * @brief Handles sending UL scheduler info to MAC + * + * @details + * + * Function : sendUlSchInfoToMac + * + * Functionality: + * Sends UL Sch info to MAC from SCH + * + * @params[in] + * @return ROK - success + * RFAILED - failure + * + * ****************************************************************/ +int sendUlSchInfoToMac(UlSchInfo *ulSchInfo, Inst inst) +{ + Pst pst; + + memset(&pst, 0, sizeof(Pst)); + SCH_FILL_RSP_PST(pst, inst); + pst.event = EVENT_UL_SCH_INFO; + + return(*schMacUlSchInfoOpts[pst.selector])(&pst, ulSchInfo); + +} +/** + * @brief resource allocation for PRACH + * + * @details + * + * Function : schPrachResAlloc + * + * This function handles PRACH allocation + * + * @param[in] SchCellCb *cell, cell cb + * @param[in] UlSchInfo *ulSchInfo, UL scheduling info + * @return void + **/ +int schPrachResAlloc(SchCellCb *cell, UlSchInfo *ulSchInfo) +{ + uint8_t numPrachRb = 0; + uint8_t numRa = 0; + uint8_t freqStart = 0; + uint16_t sfn = 0; + uint16_t slot = 0; + uint8_t prachCfgIdx = 0; + uint8_t prachFormat = 0; + uint8_t x = 0; + uint8_t y = 0; + uint16_t prachSubframe = 0; + uint8_t prachStartSymbol = 0; + uint8_t prachOcas = 0; + uint8_t dataType = 0; + uint8_t idx = 0; + SchUlAlloc *ulAlloc = NULLP; + + sfn = cell->slotInfo.sfn; + slot = cell->slotInfo.slot; + ulAlloc = cell->ulAlloc[cell->slotInfo.slot]; + prachCfgIdx = cell->cellCfg.schRachCfg.prachCfgIdx; + + /* derive the prachCfgIdx table paramters */ + x = prachCfgIdxTable[prachCfgIdx][1]; + y = prachCfgIdxTable[prachCfgIdx][2]; + prachSubframe = prachCfgIdxTable[prachCfgIdx][3]; + + if((sfn%x) != y) + { + /* prach occasion does not lie in this SFN */ + DU_LOG("\nPRACH ocassion doesn't lie in this SFN"); + return RFAILED; + } + /* check for subFrame number */ + if ((1 << slot) & prachSubframe) + { + /* prach ocassion present in this subframe */ + + prachFormat = prachCfgIdxTable[prachCfgIdx][0]; + prachStartSymbol = prachCfgIdxTable[prachCfgIdx][4]; + prachOcas = prachCfgIdxTable[prachCfgIdx][6]; + + /* freq domain resource determination for RACH*/ + freqStart = cell->cellCfg.schRachCfg.msg1FreqStart; + /* numRa determined as 𝑛 belonging {0,1,.., M − 1}, + * where M is given by msg1Fdm */ + numRa = (cell->cellCfg.schRachCfg.msg1Fdm - 1); + for(idx=0; idxcellCfg.schRachCfg.rootSeqIdx) + break; + } + numPrachRb = numRbForPrachTable[idx][3]; + dataType |= SCH_DATATYPE_PRACH; + /* Considering first slot in the frame for PRACH */ + idx = 0; + ulAlloc->assignedPrb[idx] = freqStart+numPrachRb; + } + + /* Fill UL SCH Info */ + ulSchInfo->cellId = cell->cellId; + ulSchInfo->slotIndInfo.sfn = sfn; + ulSchInfo->slotIndInfo.slot = slot; + ulSchInfo->dataType = dataType; + /* prach info */ + ulSchInfo->prachSchInfo.numPrachOcas = prachOcas; + ulSchInfo->prachSchInfo.prachFormat = prachFormat; + ulSchInfo->prachSchInfo.numRa = numRa; + ulSchInfo->prachSchInfo.prachStartSymb = prachStartSymbol; + + return ROK; +} + +/** + * @brief resource allocation for UL + * + * @details + * + * Function : schUlResAlloc + * + * This function handles UL Resource allocation + * + * @param[in] SchCellCb *cell, cellCb + * @return void + **/ +uint8_t schUlResAlloc(SchCellCb *cell, Inst schInst) +{ + int ret = ROK; + UlSchInfo ulSchInfo; + SchUlAlloc *ulAlloc; + + /* Schedule resources for PRACH */ + schPrachResAlloc(cell, &ulSchInfo); + + ulAlloc = cell->ulAlloc[cell->slotInfo.slot]; + + if(ulAlloc->schPuschInfo) + { + ulSchInfo.dataType |= SCH_DATATYPE_PUSCH; + memcpy(&ulSchInfo.schPuschInfo, ulAlloc->schPuschInfo, + sizeof(SchPuschInfo)); + SCH_FREE(ulAlloc->schPuschInfo, sizeof(SchPuschInfo)); + } + + //send msg to MAC + ret = sendUlSchInfoToMac(&ulSchInfo, schInst); + if(ret != ROK) + { + DU_LOG("\nSending UL Sch info from SCH to MAC failed"); + } + + return ret; +} + +/******************************************************************* + * + * @brief Fills pdcch and pdsch info for msg4 + * + * @details + * + * Function : schDlRsrcAllocMsg4 + * + * Functionality: + * Fills pdcch and pdsch info for msg4 + * + * @params[in] + * @return ROK - success + * RFAILED - failure + * + * ****************************************************************/ +uint8_t schDlRsrcAllocMsg4(Msg4Alloc *msg4Alloc, SchCellCb *cell, uint16_t slot) +{ + uint8_t coreset0Idx = 0; + uint8_t numRbs = 0; + uint8_t firstSymbol = 0; + uint8_t numSymbols = 0; + uint8_t offset = 0; + uint8_t offsetPointA; + uint8_t FreqDomainResource[6] = {0}; + SchBwpDlCfg *initialBwp; + + PdcchCfg *pdcch = &msg4Alloc->msg4PdcchCfg; + PdschCfg *pdsch = &msg4Alloc->msg4PdschCfg; + + initialBwp = &cell->cellCfg.schInitialDlBwp; + offsetPointA = cell->cellCfg.ssbSchCfg.ssbOffsetPointA; + coreset0Idx = initialBwp->pdcchCommon.raSearchSpace.coresetId; + + /* derive the sib1 coreset0 params from table 13-1 spec 38.213 */ + numRbs = coresetIdxTable[coreset0Idx][1]; + numSymbols = coresetIdxTable[coreset0Idx][2]; + offset = coresetIdxTable[coreset0Idx][3]; + + /* calculate time domain parameters */ + uint16_t mask = 0x2000; + for(firstSymbol=0; firstSymbol<14;firstSymbol++) + { + if(initialBwp->pdcchCommon.raSearchSpace.monitoringSymbol & mask) + break; + else + mask = mask>>1; + } + + /* calculate the PRBs */ + calculatePRB( ((offsetPointA-offset)/6), (numRbs/6), FreqDomainResource); + + /* 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); + 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.coreSet0Size = numRbs; + pdcch->coreset0Cfg.shiftIndex = cell->cellCfg.phyCellId; + pdcch->coreset0Cfg.precoderGranularity = 0; /* sameAsRegBundle */ + pdcch->numDlDci = 1; + pdcch->dci.rnti = cell->dlAlloc[slot]->msg4Info->crnti; + pdcch->dci.scramblingId = cell->cellCfg.phyCellId; + pdcch->dci.scramblingRnti = 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; + pdcch->dci.beamPdcchInfo.digBfInterfaces = 0; + pdcch->dci.beamPdcchInfo.prg[0].pmIdx = 0; + pdcch->dci.beamPdcchInfo.prg[0].beamIdx[0] = 0; + pdcch->dci.txPdcchPower.powerValue = 0; + pdcch->dci.txPdcchPower.powerControlOffsetSS = 0; + + /* fill the PDSCH PDU */ + uint8_t cwCount = 0; + pdsch->pduBitmap = 0; /* PTRS and CBG params are excluded */ + pdsch->rnti = cell->dlAlloc[slot]->msg4Info->crnti; + 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].rvIndex = 0; + /* 38.214: Table 5.1.3.2-1, divided by 8 to get the value in bytes */ + /* TODO : Calculate tbSize based of DL CCCH msg size */ + pdsch->codeword[cwCount].tbSize = 2664/8; + } + pdsch->dataScramblingId = cell->cellCfg.phyCellId; + pdsch->numLayers = 1; + pdsch->transmissionScheme = 0; + pdsch->refPoint = 0; + pdsch->dmrs.dlDmrsSymbPos = 2; + pdsch->dmrs.dmrsConfigType = 0; /* type-1 */ + pdsch->dmrs.dlDmrsScramblingId = cell->cellCfg.phyCellId; + pdsch->dmrs.scid = 0; + pdsch->dmrs.numDmrsCdmGrpsNoData = 1; + pdsch->dmrs.dmrsPorts = 0; + pdsch->freqAlloc.resourceAlloc = 1; /* RAT type-1 RIV format */ + /* the RB numbering starts from coreset0, and PDSCH is always above SSB */ + pdsch->freqAlloc.rbStart = offset + SCH_SSB_PRB_DURATION; + /* 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 */ + /* TODO : Calculate rbSize based on tbSize calculated */ + pdsch->freqAlloc.rbSize = 34; + pdsch->freqAlloc.vrbPrbMapping = 0; /* non-interleaved */ + pdsch->timeAlloc.startSymbolIndex = 2; /* spec-38.214, Table 5.1.2.1-1 */ + pdsch->timeAlloc.numSymbols = 12; + pdsch->beamPdschInfo.numPrgs = 1; + pdsch->beamPdschInfo.prgSize = 1; + pdsch->beamPdschInfo.digBfInterfaces = 0; + pdsch->beamPdschInfo.prg[0].pmIdx = 0; + pdsch->beamPdschInfo.prg[0].beamIdx[0] = 0; + pdsch->txPdschPower.powerControlOffset = 0; + pdsch->txPdschPower.powerControlOffsetSS = 0; + + pdcch->dci.pdschCfg = pdsch; + return ROK; +} /********************************************************************** End of file