/** @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"
#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;
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;
+ 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 */
- 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; idx<symbLen; idx++)
{
- /* the next slot has SIB1 occasion, so send it after 2 slot */
- rarDelay = 2;
+ cell->schUlSlotInfo[msg3SlotAlloc]->assignedPrb[idx] = startRb + numRb;
}
- else
+ schUlSlotInfo = cell->schUlSlotInfo[msg3SlotAlloc];
+
+ SCH_ALLOC(schUlSlotInfo->schPuschInfo, sizeof(SchPuschInfo));
+ if(!schUlSlotInfo->schPuschInfo)
{
- /* send RAR in the next slot */
- //rarDelay = 1;
- rarDelay = 2;
+ 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 */
+ schUlSlotInfo->schPuschInfo->dmrsMappingType = DMRS_MAP_TYPE_A; /* Setting Type-A */
+ schUlSlotInfo->schPuschInfo->nrOfDmrsSymbols = NUM_DMRS_SYMBOLS;
+ schUlSlotInfo->schPuschInfo->dmrsAddPos = DMRS_ADDITIONAL_POS;
- if((slot+rarDelay) % SCH_NUM_SLOTS == 0)
- {
- sfn = (sfn+1) % SCH_MAX_SFN;
- }
+ *msg3StartRb = startRb;
+ *msg3NumRb = numRb;
- slot = ((slot + rarDelay) % SCH_NUM_SLOTS);
+ return ROK;
+}
- SchDlAlloc *dlAlloc = cell->dlAlloc[slot]; /* RAR will sent in the next slot */
- RarInfo *rarInfo = &(dlAlloc->rarInfo);
- /* rar message presense in next slot ind and will be scheduled */
- dlAlloc->rarPres = true;
- /* calculate the ra-rnti value */
+/**
+ * @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;
+
+ /* RAR will sent with a delay of RAR_DELAY */
+ rarSlot = (rachInd->timingInfo.slot+RAR_DELAY+PHY_DELTA)%SCH_NUM_SLOTS;
+
+ SchDlSlotInfo *schDlSlotInfo = cell->schDlSlotInfo[rarSlot]; /* RAR will sent in the next slot */
+
+ /* 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;
}
-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};
+ 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 = 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);
+ 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 = 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->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;
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++)
{
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;
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;
Code Review / o-du / l2.git / blobdiff