+ puschScs = cell->cellCfg.schInitialUlBwp.bwp.scs;
+ schUlSlotInfo = cell->schUlSlotInfo[prachOccasionTimingInfo.slot];
+ prachCfgIdx = cell->cellCfg.schRachCfg.prachCfgIdx;
+
+ /* derive the prachCfgIdx table paramters */
+ x = prachCfgIdxTable[prachCfgIdx][1];
+ y = prachCfgIdxTable[prachCfgIdx][2];
+ prachSubframe = prachCfgIdxTable[prachCfgIdx][3];
+
+ if((prachOccasionTimingInfo.sfn%x) == y)
+ {
+ /* check for subFrame number */
+ if ((1 << prachOccasionTimingInfo.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; idx<MAX_RACH_NUM_RB_IDX; idx++)
+ {
+ if(numRbForPrachTable[idx][0] == cell->cellCfg.schRachCfg.rootSeqLen)
+ {
+ if(numRbForPrachTable[idx][1] == cell->cellCfg.schRachCfg.prachSubcSpacing)
+ {
+ if(numRbForPrachTable[idx][2] == puschScs)
+ {
+ break;
+ }
+ }
+ }
+ }
+ numPrachRb = numRbForPrachTable[idx][3];
+ dataType |= SCH_DATATYPE_PRACH;
+ /* Considering first slot in the frame for PRACH */
+ idx = 0;
+ schUlSlotInfo->assignedPrb[idx] = freqStart+numPrachRb;
+ }
+ ulSchedInfo->dataType = dataType;
+ /* prach info */
+ ulSchedInfo->prachSchInfo.numPrachOcas = prachOcas;
+ ulSchedInfo->prachSchInfo.prachFormat = prachFormat;
+ ulSchedInfo->prachSchInfo.numRa = numRa;
+ ulSchedInfo->prachSchInfo.prachStartSymb = prachStartSymbol;
+ }
+}
+
+
+/**
+ * @brief Function to fill Pucch Format 0
+ *
+ * @details
+ *
+ * Function : fillPucchFormat0
+ *
+ * Function to fill Pucch format 0
+ *
+ * @param[in] SchPucchInfo pointer, SchPucchResrcInfo pointer
+ * @return void
+ **/
+
+void fillPucchFormat0(SchPucchInfo *ulSchedPucch, SchPucchResrcInfo *resrcInfo)
+{
+ if(resrcInfo->SchPucchFormat.format0)
+ {
+ ulSchedPucch->fdAlloc.numPrb = PUCCH_NUM_PRB_FORMAT_0_1_4;
+ ulSchedPucch->pucchFormat = PUCCH_FORMAT_0;
+ ulSchedPucch->initialCyclicShift = resrcInfo->SchPucchFormat.format0->initialCyclicShift;
+ ulSchedPucch->tdAlloc.numSymb = resrcInfo->SchPucchFormat.format0->numSymbols;
+ ulSchedPucch->tdAlloc.startSymb = resrcInfo->SchPucchFormat.format0->startSymbolIdx;
+ }
+}
+
+/**
+ * @brief Function to fill Pucch Format 1
+ *
+ * @details
+ *
+ * Function : fillPucchFormat1
+ *
+ * Function to fill Pucch format 1
+ *
+ * @param[in] SchPucchInfo pointer, SchPucchResrcInfo pointer
+ * @return void
+ **/
+
+void fillPucchFormat1(SchPucchInfo *ulSchedPucch, SchPucchResrcInfo *resrcInfo)
+{
+ if(resrcInfo->SchPucchFormat.format1)
+ {
+ ulSchedPucch->fdAlloc.numPrb = PUCCH_NUM_PRB_FORMAT_0_1_4;
+ ulSchedPucch->pucchFormat = PUCCH_FORMAT_1;
+ ulSchedPucch->initialCyclicShift = resrcInfo->SchPucchFormat.format1->initialCyclicShift;
+ ulSchedPucch->tdAlloc.numSymb = resrcInfo->SchPucchFormat.format1->numSymbols;
+ ulSchedPucch->tdAlloc.startSymb = resrcInfo->SchPucchFormat.format1->startSymbolIdx;
+ ulSchedPucch->timeDomOCC = resrcInfo->SchPucchFormat.format1->timeDomOCC;
+ }
+}
+
+/**
+ * @brief Function to fill Pucch format for UL Sched Info
+ *
+ * @details
+ *
+ * Function : fillUlSchedPucchFormat
+ *
+ * Function to fill Pucch format for UL Sched Info
+ *
+ * @param[in] pucchFormat , SchPucchInfo pointer,
+ * @param[in] SchPucchFormatCfg pointer, SchPucchResrcInfo pointer
+ * @return void
+ **/
+
+uint8_t fillUlSchedPucchFormat(uint8_t pucchFormat, SchPucchInfo *ulSchedPucch,\
+ SchPucchResrcInfo *resrcInfo, SchPucchFormatCfg *formatCfg)
+{
+ uint8_t ret = ROK;
+
+ switch(pucchFormat)
+ {
+ case PUCCH_FORMAT_0:
+ {
+ if(resrcInfo)
+ fillPucchFormat0(ulSchedPucch, resrcInfo);
+ return ret;
+ }
+ case PUCCH_FORMAT_1:
+ {
+ if(resrcInfo)
+ {
+ fillPucchFormat1(ulSchedPucch, resrcInfo);
+ }
+ if(formatCfg)
+ {
+ memcpy(&ulSchedPucch->cmnFormatCfg, formatCfg, sizeof(SchPucchFormatCfg));
+ }
+ return ret;
+ }/* To Add support for more Pucch Format */
+
+ default:
+ DU_LOG("\nERROR --> SCH : Invalid PUCCH format[%d] in fillUlSchedPucchFormatCfg()", pucchFormat);
+ ret = RFAILED;
+ return ret;
+ }
+ return ret;
+}
+
+/**
+ * @brief Function to fill Pucch Dedicated Cfg for UL Sched Info
+ *
+ * @details
+ *
+ * Function : fillUlSchedPucchDedicatedCfg
+ *
+ * Function to fill Pucch Dedicated Cfg for UL Sched Info
+ *
+ * @param[in] pucchFormat to be filled
+ * @param[in] SchPucchFormatCfg pointer, SchPucchCfg pointer
+ * @return void
+ **/
+
+uint8_t fillUlSchedPucchDedicatedCfg(uint16_t numSlots, SchPucchCfg *pucchDedCfg,\
+ SlotIndInfo *slotInfo, SchPucchInfo *ulSchedPucch)
+{
+ uint8_t ret, resrcSetIdx, resrcIdx, schedReqIdx, srPeriodicity = 0;
+ uint16_t srOffset = 0;
+
+ ret = ROK;
+ if(pucchDedCfg->resrcSet && pucchDedCfg->resrc)
+ {
+ //Assuming one entry in the list
+ for(resrcSetIdx = 0; resrcSetIdx < pucchDedCfg->resrcSet->resrcSetToAddModListCount; resrcSetIdx++)
+ {
+ for(resrcIdx = 0; resrcIdx < pucchDedCfg->resrc->resrcToAddModListCount; resrcIdx++)
+ {
+ if(pucchDedCfg->resrcSet->resrcSetToAddModList[resrcSetIdx].resrcList[resrcSetIdx] ==\
+ pucchDedCfg->resrc->resrcToAddModList[resrcIdx].resrcId)
+ {
+ ulSchedPucch->intraFreqHop = pucchDedCfg->resrc->resrcToAddModList[resrcIdx].intraFreqHop;
+ ulSchedPucch->secondPrbHop = pucchDedCfg->resrc->resrcToAddModList[resrcIdx].secondPrbHop;
+ ulSchedPucch->fdAlloc.startPrb = pucchDedCfg->resrc->resrcToAddModList[resrcIdx].startPrb;
+ ulSchedPucch->pucchFormat = pucchDedCfg->resrc->resrcToAddModList[resrcIdx].pucchFormat;
+ ret = fillUlSchedPucchFormat(ulSchedPucch->pucchFormat, ulSchedPucch,\
+ &pucchDedCfg->resrc->resrcToAddModList[resrcIdx], NULLP);
+ if(ret == RFAILED)
+ return ret;
+ }
+ }
+ }
+ }
+ if(pucchDedCfg->format1)
+ {
+ memset(&ulSchedPucch->cmnFormatCfg, 0, sizeof(SchPucchFormatCfg));
+ ret = fillUlSchedPucchFormat(ulSchedPucch->pucchFormat, ulSchedPucch, NULLP, pucchDedCfg->format1);
+ if(ret == RFAILED)
+ return ret;
+ }
+
+ /* setting SR and UCI flag */
+ if(pucchDedCfg->schedReq)
+ {
+ for(schedReqIdx = 0; schedReqIdx < pucchDedCfg->schedReq->schedAddModListCount; schedReqIdx++)
+ {
+ srPeriodicity = pucchDedCfg->schedReq->schedAddModList[schedReqIdx].periodicity;
+ srOffset = pucchDedCfg->schedReq->schedAddModList[schedReqIdx].offset;
+ break;
+ }
+ if(((numSlots * slotInfo->sfn + slotInfo->slot - srOffset) % srPeriodicity) == 0)
+ {
+ ulSchedPucch->srFlag = true;
+ ulSchedPucch->uciFlag = true;
+ }
+ }
+ return ret;
+}
+
+/**
+ * @brief Function to fill Pucch Resource Info
+ *
+ * @details
+ *
+ * Function : fillPucchResourceInfo
+ *
+ * Function to fill Pucch Resource Info
+ *
+ * @param[in] SchPucchInfo *schPucchInfo, Inst inst
+ * @return ROK/RFAILED
+ **/
+
+uint16_t fillPucchResourceInfo(SchPucchInfo *schPucchInfo, Inst inst)
+{
+ uint8_t ret = ROK, ueIdx = 0, pucchIdx = 0;
+ SchCellCb *cell = schCb[inst].cells[inst];
+ SchPucchCfgCmn *pucchCfg = NULLP;
+ SchBwpParams *ulBwp = NULLP;
+
+ GET_UE_IDX(schPucchInfo->rnti, ueIdx);
+ if(cell->ueCb[ueIdx].ueCfg.spCellCfg.servCellCfg.initUlBwp.pucchCfgPres)
+ {
+ /* fill pucch dedicated cfg */
+ ret = fillUlSchedPucchDedicatedCfg(cell->numSlots,\
+ &cell->ueCb[ueIdx].ueCfg.spCellCfg.servCellCfg.initUlBwp.pucchCfg, &cell->slotInfo, schPucchInfo);
+ if(ret == RFAILED)
+ {
+ memset(schPucchInfo, 0, sizeof(SchPucchInfo));
+ DU_LOG("\nERROR --> SCH : Filling PUCCH dedicated cfg failed at fillPucchResourceInfo()");
+ return ret;
+ }
+ }
+ else
+ {
+ /* fill pucch common cfg */
+ /* derive pucchResourceSet from schCellCfg */
+ pucchCfg = &cell->cellCfg.schInitialUlBwp.pucchCommon;
+ pucchIdx = pucchCfg->pucchResourceCommon;
+ ulBwp = &cell->cellCfg.schInitialUlBwp.bwp;
+ schPucchInfo->fdAlloc.startPrb = ulBwp->freqAlloc.startPrb + pucchResourceSet[pucchIdx][3];
+ schPucchInfo->fdAlloc.numPrb = PUCCH_NUM_PRB_FORMAT_0_1_4;
+ schPucchInfo->tdAlloc.startSymb = pucchResourceSet[pucchIdx][1];
+ schPucchInfo->tdAlloc.numSymb = pucchResourceSet[pucchIdx][2];
+ schPucchInfo->pucchFormat = pucchResourceSet[pucchIdx][0];
+
+ /* set SR and UCI flag to false */
+ schPucchInfo->srFlag = true;
+ schPucchInfo->uciFlag = true;
+ }
+ /* set HARQ flag to true */
+ schPucchInfo->harqFlag = true;
+ schPucchInfo->numHarqBits = 1; /* 1 bit for HARQ */
+
+ 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;
+ UlSchedInfo ulSchedInfo;
+ SchUlSlotInfo *schUlSlotInfo = NULLP;
+ SlotIndInfo ulTimingInfo;
+ memset(&ulSchedInfo, 0, sizeof(UlSchedInfo));
+
+ /* add PHY delta */
+ ADD_DELTA_TO_TIME(cell->slotInfo,ulTimingInfo,PHY_DELTA+SCHED_DELTA);
+
+ ulSchedInfo.cellId = cell->cellId;
+ ulSchedInfo.slotIndInfo.cellId = ulSchedInfo.cellId;
+ ulSchedInfo.slotIndInfo.sfn = ulTimingInfo.sfn;
+ ulSchedInfo.slotIndInfo.slot = ulTimingInfo.slot;
+
+ /* Schedule resources for PRACH */
+ schPrachResAlloc(cell, &ulSchedInfo, ulTimingInfo);
+
+ schUlSlotInfo = cell->schUlSlotInfo[ulTimingInfo.slot];
+ if(schUlSlotInfo->schPuschInfo)
+ {
+ ulSchedInfo.crnti = schUlSlotInfo->schPuschInfo->crnti;
+ ulSchedInfo.dataType |= SCH_DATATYPE_PUSCH;
+ memcpy(&ulSchedInfo.schPuschInfo, schUlSlotInfo->schPuschInfo,
+ sizeof(SchPuschInfo));
+ SCH_FREE(schUlSlotInfo->schPuschInfo, sizeof(SchPuschInfo));
+ schUlSlotInfo->schPuschInfo = NULL;
+ }
+
+ if(schUlSlotInfo->pucchPres)
+ {
+ ulSchedInfo.dataType |= SCH_DATATYPE_UCI;
+ fillPucchResourceInfo(&schUlSlotInfo->schPucchInfo, schInst);
+ memcpy(&ulSchedInfo.schPucchInfo, &schUlSlotInfo->schPucchInfo,
+ sizeof(SchPucchInfo));
+ memset(&schUlSlotInfo->schPucchInfo, 0, sizeof(SchPucchInfo));
+ }
+
+ //send msg to MAC
+ ret = sendUlSchInfoToMac(&ulSchedInfo, schInst);
+ if(ret != ROK)
+ {
+ DU_LOG("\nSending UL Sch info from SCH to MAC failed");
+ }
+
+ schInitUlSlot(schUlSlotInfo);
+ return ret;
+}