#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;
+ 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; idx<symbLen; idx++)
{
- /* the next slot has SIB1 occasion, so send it after 2 slot */
- rarDelay = 2;
+ cell->ulAlloc[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);
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->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;
* 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;
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