+
+/*******************************************************************
+ *
+ * @brief Handles sending DL Page alloc to MAC
+ *
+ * @details
+ *
+ * Function : sendDlPAgeAllocToMac
+ *
+ * Functionality:
+ * Sends DL Page Resource Allocation to MAC from SCH
+ *
+ * @params[in]
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t sendDlPageAllocToMac(DlPageAlloc *dlPageAlloc, Inst inst)
+{
+ Pst pst;
+
+ memset(&pst, 0, sizeof(Pst));
+ FILL_PST_SCH_TO_MAC(pst, inst);
+ pst.event = EVENT_DL_PAGING_ALLOC;
+
+ return(*schMacDlPageAllocOpts[pst.selector])(&pst, dlPageAlloc);
+
+}
+
+/*******************************************************************
+ *
+ * @brief Handles slot indication at SCH
+ *
+ * @details
+ *
+ * Function : schCalcSlotValues
+ *
+ * Functionality:
+ * Handles TTI indication received from PHY
+ *
+ * @params[in]
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+void schCalcSlotValues(SlotTimingInfo slotInd, SchSlotValue *schSlotValue, uint16_t numOfSlots)
+{
+ /****************************************************************
+ * PHY_DELTA - the physical layer delta *
+ * SCHED_DELTA - scheduler schedules one slot ahead *
+ * BO_DELTA - this delay is considered for BO response and *
+ * RLC buffer packet to received at MAC *
+ * lower-mac (FAPI filling) will be working on PHY_DELTA *
+ * brdcast scheduler will working on PHY_DELTA + SCHED_DELTA *
+ * RAR scheduler will working on PHY_DELTA + SCHED_DELTA *
+ * msg4 scheduler will working on PHY_DELTA + SCHED_DELTA *
+ * dedicated DL msg scheduler will working *
+ * on PHY_DELTA + SCHED_DELTA + BO_DELTA *
+ ****************************************************************/
+
+ ADD_DELTA_TO_TIME(slotInd, schSlotValue->currentTime, PHY_DELTA_DL, numOfSlots);
+ ADD_DELTA_TO_TIME(slotInd, schSlotValue->broadcastTime, PHY_DELTA_DL + SCHED_DELTA, numOfSlots);
+ ADD_DELTA_TO_TIME(slotInd, schSlotValue->rarTime, PHY_DELTA_DL + SCHED_DELTA, numOfSlots);
+ ADD_DELTA_TO_TIME(slotInd, schSlotValue->dlMsgTime, PHY_DELTA_DL + SCHED_DELTA, numOfSlots);
+ ADD_DELTA_TO_TIME(slotInd, schSlotValue->ulDciTime, PHY_DELTA_DL + SCHED_DELTA, numOfSlots);
+}
+
+/*******************************************************************
+ *
+ * @brief Checks if a slot is to be scheduled for SSB transmission
+ *
+ * @details
+ *
+ * Function : schCheckSsbOcc
+ *
+ * Functionality:
+ * Checks if a slot is to be scheduled for SSB transmission
+ *
+ * @params[in] SlotTimingInfo slotTime
+ * SchCellCb *cell
+ * @return Pdu transmission
+ *
+ * ****************************************************************/
+PduTxOccsaion schCheckSsbOcc(SchCellCb *cell, SlotTimingInfo slotTime)
+{
+ uint8_t ssb_rep;
+
+ ssb_rep = cell->cellCfg.ssbSchCfg.ssbPeriod;
+
+ /* Identify SSB ocassion*/
+ if ((slotTime.sfn % SCH_MIB_TRANS == 0) && (slotTime.slot ==0))
+ {
+ return NEW_TRANSMISSION;
+ }
+ else if(cell->firstSsbTransmitted)
+ {
+ if((ssb_rep == 5) && ((slotTime.slot == 0 || slotTime.slot == 10)))
+ return REPEATITION;
+ else if((slotTime.sfn % (ssb_rep/10) == 0) && slotTime.slot == 0)
+ return REPEATITION;
+ }
+ /* not SSB occassion */
+ return NO_TRANSMISSION;
+}
+
+/*******************************************************************
+ *
+ * @brief Checks if a slot is to be scheduled for SIB1 transmission
+ *
+ * @details
+ *
+ * Function : schCheckSib1Occ
+ *
+ * Functionality:
+ * Checks if a slot is to be scheduled for SIB1 transmission
+ *
+ * @params[in] SlotTimingInfo slotTime
+ * SchCellCb *cell
+ * @return Pdu transmission
+ *
+ * ****************************************************************/
+PduTxOccsaion schCheckSib1Occ(SchCellCb *cell, SlotTimingInfo slotTime)
+{
+ /* Identify SIB1 occasions */
+ if((slotTime.sfn % SCH_SIB1_TRANS == 0) && (slotTime.slot ==0))
+ {
+ return NEW_TRANSMISSION;
+ }
+ else if(cell->firstSib1Transmitted)
+ {
+ if((slotTime.sfn % (cell->cellCfg.sib1SchCfg.sib1RepetitionPeriod/10) == 0) &&
+ (slotTime.slot == 0))
+ {
+ return REPEATITION;
+ }
+ }
+ /* not SIB1 occassion */
+ return NO_TRANSMISSION;
+}
+
+/*******************************************************************
+ *
+ * @brief find correct combination of k0-k1 value
+ *
+ * @details
+ *
+ * Function : findValidK0K1Value
+ *
+ * Functionality:
+ * find correct combination of k0-k1 value
+ *
+ * @params[in] SchCellCb *cell, SlotTimingInfo currTime
+ * @params[in] uint8_t ueId, bool dedMsg
+ * @params[in] uint8_t *pdschStartSymbol, uint8_t *pdschSymblLen
+ * @params[in] SlotTimingInfo *pdcchTime, SlotTimingInfo *pdschTime
+ * @params[in] SlotTimingInfo *pucchTime, bool isRetx, SchDlHqProcCb *hqP
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ *******************************************************************/
+bool findValidK0K1Value(SchCellCb *cell, SlotTimingInfo currTime, uint8_t ueId, bool dedMsg,
+ uint8_t *pdschStartSymbol, uint8_t *pdschSymblLen, SlotTimingInfo *pdcchTime,
+ SlotTimingInfo *pdschTime, SlotTimingInfo *pucchTime, bool isRetx, SchDlHqProcCb *hqP)
+{
+ uint8_t numK0 = 0, k0TblIdx = 0, k0Val = 0, k0Index =0 ;
+ uint8_t k1TblIdx = 0, k1Index = 0, k1Val = 0, numK1 = 0;
+ SchUeCb *ueCb = NULLP;
+ SchK0K1TimingInfoTbl *k0K1InfoTbl;
+
+ ADD_DELTA_TO_TIME(currTime, (*pdcchTime), PHY_DELTA_DL + SCHED_DELTA, cell->numSlots);
+#ifdef NR_TDD
+ if(schGetSlotSymbFrmt(pdcchTime->slot, cell->slotFrmtBitMap) != DL_SLOT)
+ {
+ /* If it is not a DL slot, cannot schedule PDCCH. Return from here. */
+ return false;
+ }
+#endif
+
+ if(cell->schDlSlotInfo[pdcchTime->slot]->pdcchUe != 0)
+ {
+ return false;
+ }
+
+ if(dedMsg == true)
+ {
+ ueCb = &cell->ueCb[ueId-1];
+ k0K1InfoTbl = &ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.k0K1InfoTbl;
+ }
+ else
+ {
+ k0K1InfoTbl = &cell->cellCfg.schInitialDlBwp.k0K1InfoTbl;
+ }
+
+ numK0 = k0K1InfoTbl->k0k1TimingInfo[pdcchTime->slot].numK0;
+ for(k0TblIdx = 0; k0TblIdx < numK0; k0TblIdx++)
+ {
+ k0Index = k0K1InfoTbl->k0k1TimingInfo[pdcchTime->slot].k0Indexes[k0TblIdx].k0Index;
+ if(dedMsg != true)
+ {
+ k0Val = cell->cellCfg.schInitialDlBwp.pdschCommon.timeDomRsrcAllocList[k0Index].k0;
+ *pdschStartSymbol = cell->cellCfg.schInitialDlBwp.pdschCommon.timeDomRsrcAllocList[k0Index].startSymbol;
+ *pdschSymblLen = cell->cellCfg.schInitialDlBwp.pdschCommon.timeDomRsrcAllocList[k0Index].lengthSymbol;
+ }
+ else
+ {
+ if(ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.pdschCfg.timeDomRsrcAllociList[k0Index].k0 != NULLP)
+ {
+ k0Val = *(ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.pdschCfg.timeDomRsrcAllociList[k0Index].k0);
+ *pdschStartSymbol = ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.pdschCfg.timeDomRsrcAllociList[k0Index].startSymbol;
+ *pdschSymblLen = ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.pdschCfg.timeDomRsrcAllociList[k0Index].symbolLength;
+ }
+ }
+
+ ADD_DELTA_TO_TIME((*pdcchTime), (*pdschTime), k0Val, cell->numSlots);
+#ifdef NR_TDD
+ if(schGetSlotSymbFrmt(pdschTime->slot, cell->slotFrmtBitMap) != DL_SLOT)
+ {
+ continue;
+ }
+#endif
+ if(cell->schDlSlotInfo[pdschTime->slot]->pdschUe != 0)
+ {
+ continue;
+ }
+
+ numK1 = k0K1InfoTbl->k0k1TimingInfo[pdcchTime->slot].k0Indexes[k0TblIdx].k1TimingInfo.numK1;
+ for(k1TblIdx = 0; k1TblIdx < numK1; k1TblIdx++)
+ {
+ k1Index = k0K1InfoTbl->k0k1TimingInfo[pdcchTime->slot].k0Indexes[k0TblIdx].k1TimingInfo.k1Indexes[k1TblIdx];
+ if(dedMsg != true)
+ {
+ k1Val = defaultUlAckTbl[k1Index];
+ }
+ else
+ {
+ if(ueCb->ueCfg.spCellCfg.servCellCfg.initUlBwp.pucchCfg.dlDataToUlAck)
+ {
+ k1Val = ueCb->ueCfg.spCellCfg.servCellCfg.initUlBwp.pucchCfg.dlDataToUlAck->dlDataToUlAckList[k1Index];
+ }
+ }
+ ADD_DELTA_TO_TIME((*pdschTime),(*pucchTime), k1Val, cell->numSlots);
+#ifdef NR_TDD
+ if(schGetSlotSymbFrmt(pucchTime->slot, cell->slotFrmtBitMap) == DL_SLOT)
+ {
+ continue;
+ }
+#endif
+ if(cell->schUlSlotInfo[pucchTime->slot]->pucchUe != 0)
+ {
+ continue;
+ }
+ return true;
+ }
+ }
+ /*
+ * Number of symbols in case of retransmisson should be same as it was in
+ * original transmisson. Symbol availablity checks need to be added.
+ */
+ return false;
+}
+
+/*******************************************************************
+ *
+ * @brief
+ *
+ * @details
+ *
+ * Function : schFillBoGrantDlSchedInfo
+ *
+ * Functionality:
+
+ *
+ * @params[in] SchCellCb *cell, SlotTimingInfo currTime, uint8_t ueId
+ * @params[in] bool isRetx, SchDlHqProcCb **hqP
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+bool schFillBoGrantDlSchedInfo(SchCellCb *cell, SlotTimingInfo currTime, uint8_t ueId, bool isRetx, SchDlHqProcCb **hqP)
+{
+ uint8_t lcIdx = 0;
+ uint8_t pdschNumSymbols = 0, pdschStartSymbol = 0;
+ uint16_t startPrb = 0, maxFreePRB = 0;
+ uint16_t crnti = 0, mcsIdx = 0;
+ uint32_t accumalatedSize = 0;
+ SchUeCb *ueCb = NULLP;
+ CmLListCp *lcLL = NULLP;
+ DlMsgAlloc *dciSlotAlloc, *dlMsgAlloc;
+ SlotTimingInfo pdcchTime, pdschTime, pucchTime;
+ uint16_t rsvdDedicatedPRB = 0;
+
+ /* TX_PAYLOAD_HDR_LEN: Overhead which is to be Added once for any UE while estimating Accumulated TB Size
+ * Following flag added to keep the record whether TX_PAYLOAD_HDR_LEN is added to the first Node getting allocated.
+ * If both Dedicated and Default LC lists are present then First LC in Dedicated List will include this overhead
+ * else if only Default list is present then first node in this List will add this overhead len*/
+ bool isTxPayloadLenAdded = FALSE;
+ GET_CRNTI(crnti,ueId);
+ ueCb = &cell->ueCb[ueId-1];
+
+ if (isRetx == FALSE)
+ {
+ if(schDlGetAvlHqProcess(cell, ueCb, hqP) != ROK)
+ {
+ return false;
+ }
+ }
+
+ if(findValidK0K1Value(cell, currTime, ueId, ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.k0K1TblPrsnt,\
+ &pdschStartSymbol, &pdschNumSymbols, &pdcchTime, &pdschTime, &pucchTime, isRetx, *hqP) != true )
+ {
+ /* If a valid combination of slots to scheduled PDCCH, PDSCH and PUCCH is
+ * not found, do not perform resource allocation. Return from here. */
+ return false;
+ }
+
+ /* allocate PDCCH and PDSCH resources for the ue */
+ if(cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId-1] == NULL)
+ {
+
+ SCH_ALLOC(dciSlotAlloc, sizeof(DlMsgAlloc));
+ if(!dciSlotAlloc)
+ {
+ DU_LOG("\nERROR --> SCH : Memory Allocation failed for ded DL msg alloc");
+ return false;
+ }
+ cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId -1] = dciSlotAlloc;
+ memset(dciSlotAlloc, 0, sizeof(DlMsgAlloc));
+ dciSlotAlloc->crnti = crnti;
+ }
+ else
+ {
+ dciSlotAlloc = cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId -1];
+ }
+ /* Dl ded Msg info is copied, this was earlier filled in macSchDlRlcBoInfo */
+ fillDlMsgInfo(&dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].dlMsgInfo, dciSlotAlloc->crnti, isRetx, *hqP);
+ dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].isRetx = isRetx;
+
+
+ if (isRetx == FALSE)
+ {
+ /*Re-Initalization per UE*/
+ /* scheduled LC data fill */
+ dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].numLc = 0;
+ isTxPayloadLenAdded = FALSE; /*Re-initlaize the flag for every UE*/
+ accumalatedSize = 0;
+
+ for(lcIdx = 0; lcIdx < MAX_NUM_LC; lcIdx++)
+ {
+ if(ueCb->dlInfo.dlLcCtxt[lcIdx].bo)
+ {
+ /*Check the LC is Dedicated or default and accordingly LCList will
+ * be used*/
+ if(ueCb->dlInfo.dlLcCtxt[lcIdx].isDedicated)
+ {
+ lcLL = &((*hqP)->dlLcPrbEst.dedLcList);
+ rsvdDedicatedPRB = ueCb->dlInfo.dlLcCtxt[lcIdx].rsvdDedicatedPRB;
+ }
+ else
+ {
+ lcLL = &((*hqP)->dlLcPrbEst.defLcList);
+ }
+
+ /*[Step2]: Update the reqPRB and Payloadsize for this LC in the appropriate List*/
+ if(updateLcListReqPRB(lcLL, ueCb->dlInfo.dlLcCtxt[lcIdx].lcId,\
+ (ueCb->dlInfo.dlLcCtxt[lcIdx].bo + MAC_HDR_SIZE)) != ROK)
+ {
+ DU_LOG("\nERROR --> SCH : Updation in LC List Failed");
+ /* Free the dl ded msg info allocated in macSchDlRlcBoInfo */
+ if(dciSlotAlloc->numSchedInfo == 0)
+ {
+ SCH_FREE(dciSlotAlloc, sizeof(DlMsgAlloc));
+ cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId -1] = NULL;
+ }
+ else
+ memset(&dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo], 0, sizeof(DlMsgSchInfo));
+ return false;
+ }
+ }
+ ueCb->dlInfo.dlLcCtxt[lcIdx].bo = 0;
+ }//End of for loop
+ if (((*hqP)->dlLcPrbEst.defLcList.count == 0) && ( ((*hqP)->dlLcPrbEst.dedLcList.count == 0)))
+ {
+ DU_LOG("\nDEBUG --> SCH : No pending BO for any LC id\n");
+ UNSET_ONE_BIT(ueId, cell->boIndBitMap);
+
+ /* Free the dl ded msg info allocated in macSchDlRlcBoInfo */
+ if(dciSlotAlloc->numSchedInfo == 0)
+ {
+ SCH_FREE(dciSlotAlloc, sizeof(DlMsgAlloc));
+ cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId -1] = NULL;
+ }
+ else
+ memset(&dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo], 0, sizeof(DlMsgSchInfo));
+
+ /*TRUE because this UE has nothing to be scheduled*/
+ return true;
+ }
+ }
+
+ /*[Step3]: Calculate Best FREE BLOCK with MAX PRB count*/
+ maxFreePRB = searchLargestFreeBlock(cell, pdschTime, &startPrb, DIR_DL);
+
+ /*[Step4]: Estimation of PRB and BO which can be allocated to each LC in
+ * the list based on RRM policy*/
+
+ /*Either this UE contains no reservedPRB pool fir dedicated S-NSSAI or
+ * Num of Free PRB available is not enough to reserve Dedicated PRBs*/
+ if(isRetx == FALSE)
+ {
+ if(maxFreePRB != 0)
+ {
+ mcsIdx = ueCb->ueCfg.dlModInfo.mcsIndex;
+
+ if(((*hqP)->dlLcPrbEst.dedLcList.count == NULLP)
+ || ((maxFreePRB < rsvdDedicatedPRB)))
+ {
+ (*hqP)->dlLcPrbEst.sharedNumPrb = maxFreePRB;
+ DU_LOG("\nDEBUG --> SCH : DL Only Default Slice is scheduled, sharedPRB Count:%d",\
+ (*hqP)->dlLcPrbEst.sharedNumPrb);
+
+ /*PRB Alloc for Default LCs*/
+ prbAllocUsingRRMPolicy(&((*hqP)->dlLcPrbEst.defLcList), FALSE, mcsIdx, pdschNumSymbols,\
+ &((*hqP)->dlLcPrbEst.sharedNumPrb), NULLP, &isTxPayloadLenAdded, NULLP);
+ }
+ else
+ {
+ (*hqP)->dlLcPrbEst.sharedNumPrb = maxFreePRB - rsvdDedicatedPRB;
+ /*PRB Alloc for Dedicated LCs*/
+ prbAllocUsingRRMPolicy(&((*hqP)->dlLcPrbEst.dedLcList), TRUE, mcsIdx, pdschNumSymbols,\
+ &((*hqP)->dlLcPrbEst.sharedNumPrb), &(rsvdDedicatedPRB), &isTxPayloadLenAdded, NULLP);
+
+ /*PRB Alloc for Default LCs*/
+ prbAllocUsingRRMPolicy(&((*hqP)->dlLcPrbEst.defLcList), FALSE, mcsIdx, pdschNumSymbols, \
+ &((*hqP)->dlLcPrbEst.sharedNumPrb), &(rsvdDedicatedPRB), &isTxPayloadLenAdded, NULLP);
+ }
+ }
+ }
+
+ /*[Step5]:Traverse each LCID in LcList to calculate the exact Scheduled Bytes
+ * using allocated BO per LC and Update dlMsgAlloc(BO report for MAC*/
+ if (isRetx == FALSE)
+ {
+ if((*hqP)->dlLcPrbEst.dedLcList.count != 0)
+ updateGrantSizeForBoRpt(&((*hqP)->dlLcPrbEst.dedLcList), dciSlotAlloc, NULLP, &(accumalatedSize));
+
+ updateGrantSizeForBoRpt(&((*hqP)->dlLcPrbEst.defLcList), dciSlotAlloc, NULLP, &(accumalatedSize));
+ }
+ else
+ {
+ accumalatedSize = (*hqP)->tbInfo[0].tbSzReq;
+ }
+
+ /*Below case will hit if NO LC(s) are allocated due to resource crunch*/
+ if (!accumalatedSize)
+ {
+ if(maxFreePRB == 0)
+ {
+ DU_LOG("\nERROR --> SCH : NO FREE PRB!!");
+ }
+ else
+ {
+ /*Schedule the LC for next slot*/
+ DU_LOG("\nDEBUG --> SCH : No LC has been scheduled");
+ }
+ /* Not Freeing dlMsgAlloc as ZERO BO REPORT to be sent to RLC so that
+ * Allocation can be done in next slot*/
+ return false;
+ }
+
+ /*[Step6]: pdcch and pdsch data is filled */
+ if((schDlRsrcAllocDlMsg(cell, pdschTime, crnti, accumalatedSize, dciSlotAlloc, startPrb, pdschStartSymbol, pdschNumSymbols, isRetx, *hqP)) != ROK)
+ {
+ DU_LOG("\nERROR --> SCH : Scheduling of DL dedicated message failed");
+
+ /* Free the dl ded msg info allocated in macSchDlRlcBoInfo */
+ if(dciSlotAlloc->numSchedInfo == 0)
+ {
+ SCH_FREE(dciSlotAlloc, sizeof(DlMsgAlloc));
+ cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId -1] = NULL;
+ }
+ else
+ {
+ memset(&dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo], 0, sizeof(DlMsgSchInfo));
+ }
+ return false;
+ }
+
+ /* TODO : Update the scheduling byte report for multiple LC based on QCI
+ * and Priority */
+ /* As of now, the total number of bytes scheduled for a slot is divided
+ * equally amongst all LC with pending data. This is avoid starving of any
+ * LC
+ * */
+#if 0
+ accumalatedSize = accumalatedSize/dlMsgAlloc->numLc;
+ for(lcIdx = 0; lcIdx < dlMsgAlloc->numLc; lcIdx ++)
+ dlMsgAlloc->lcSchInfo[lcIdx].schBytes = accumalatedSize;
+#endif
+
+ /* Check if both DCI and DL_MSG are sent in the same slot.
+ * If not, allocate memory for DL_MSG PDSCH slot to store PDSCH info */
+
+ if(pdcchTime.slot == pdschTime.slot)
+ {
+ dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].pduPres = BOTH;
+ dciSlotAlloc->numSchedInfo++;
+ }
+ else
+ {
+ /* Allocate memory to schedule dlMsgAlloc to send DL_Msg, pointer will be checked at schProcessSlotInd() */
+ if(cell->schDlSlotInfo[pdschTime.slot]->dlMsgAlloc[ueId-1] == NULLP)
+ {
+ SCH_ALLOC(dlMsgAlloc, sizeof(DlMsgAlloc));
+ if(dlMsgAlloc == NULLP)
+ {
+ DU_LOG("\nERROR --> SCH : Memory Allocation failed for dlMsgAlloc");
+ if(dciSlotAlloc->numSchedInfo == 0)
+ {
+ SCH_FREE(dciSlotAlloc, sizeof(DlMsgAlloc));
+ cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId-1] = NULLP;
+ }
+ else
+ memset(&dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo], 0, sizeof(DlMsgSchInfo));
+ return false;
+ }
+ cell->schDlSlotInfo[pdschTime.slot]->dlMsgAlloc[ueId-1] = dlMsgAlloc;
+ memset(dlMsgAlloc, 0, sizeof(DlMsgAlloc));
+ dlMsgAlloc->crnti = dciSlotAlloc->crnti;
+ }
+ else
+ dlMsgAlloc = cell->schDlSlotInfo[pdschTime.slot]->dlMsgAlloc[ueId-1];
+
+ /* Copy all DL_MSG info */
+ memcpy(&dlMsgAlloc->dlMsgSchedInfo[dlMsgAlloc->numSchedInfo], \
+ &dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo], sizeof(DlMsgSchInfo));
+ dlMsgAlloc->dlMsgSchedInfo[dlMsgAlloc->numSchedInfo].dlMsgPdcchCfg.dci.pdschCfg = \
+ &dlMsgAlloc->dlMsgSchedInfo[dlMsgAlloc->numSchedInfo].dlMsgPdschCfg;
+
+ /* Assign correct PDU types in corresponding slots */
+ dlMsgAlloc->dlMsgSchedInfo[dlMsgAlloc->numSchedInfo].pduPres = PDSCH_PDU;
+ dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].pduPres = PDCCH_PDU;
+ dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].pdschSlot = pdschTime.slot;
+
+ dciSlotAlloc->numSchedInfo++;
+ dlMsgAlloc->numSchedInfo++;
+ }
+
+ schAllocPucchResource(cell, pucchTime, crnti, ueCb, isRetx, *hqP);
+
+ cell->schDlSlotInfo[pdcchTime.slot]->pdcchUe = ueId;
+ cell->schDlSlotInfo[pdschTime.slot]->pdschUe = ueId;
+ cell->schUlSlotInfo[pucchTime.slot]->pucchUe = ueId;
+
+ /* after allocation is done, unset the bo bit for that ue */
+ UNSET_ONE_BIT(ueId, cell->boIndBitMap);
+ return true;
+}
+
+/*******************************************************************
+*
+* @brief Process DL Resource allocation for Page
+*
+* @details
+*
+* Function : schProcDlPageAlloc
+*
+* Functionality: Process DL Resource allocation for Page
+*
+* @params[in] SchCellCb *cell, SlotTimingInfo currTime, Inst schInst
+*
+* @return pointer to return Value(ROK, RFAILED)
+*
+* ****************************************************************/
+uint8_t schProcDlPageAlloc(SchCellCb *cell, SlotTimingInfo currTime, Inst schInst)
+{
+ DlPageAlloc dlPageAlloc;
+ CmLList *pageInfoNode = NULLP;
+ SchPageInfo *pageInfo = NULLP;
+ SlotTimingInfo pdschTime;
+ uint32_t tbSize = 0;
+ uint16_t startPrb = 0, maxFreePRB = 0, nPRB = 0;
+ uint8_t ret = RFAILED;
+
+ pageInfoNode = schPageInfoSearchFromPageList(currTime, &(cell->pageCb.pageIndInfoRecord[currTime.sfn]));
+
+ if(pageInfoNode == NULLP)
+ {
+ return ROK;
+ }
+ pageInfo = (SchPageInfo *)pageInfoNode->node;
+
+ while(true)
+ {
+ dlPageAlloc.cellId = currTime.cellId;
+
+ ADD_DELTA_TO_TIME(currTime, dlPageAlloc.dlPageTime, PHY_DELTA_DL + SCHED_DELTA, cell->numSlots);
+ dlPageAlloc.shortMsgInd = FALSE;
+ pdschTime = dlPageAlloc.dlPageTime;
+
+ /*Calculate Best FREE BLOCK with MAX PRB count*/
+ maxFreePRB = searchLargestFreeBlock(cell, pdschTime, &startPrb, DIR_DL);
+
+ if(maxFreePRB != 0)
+ {
+ tbSize = calculateEstimateTBSize(pageInfo->msgLen, pageInfo->mcs, NUM_PDSCH_SYMBOL, maxFreePRB, &nPRB);
+ }
+ else
+ {
+ DU_LOG("\nERROR --> SCH: Unable to get any free block for Paging at SFN:%d, SLOT:%d",\
+ pdschTime.sfn, pdschTime.slot);
+ break;
+ }
+ /*Fill PDCCH: PDCCH Cfg is same as SIB1 as Paging will be a broadcast message*/
+ memcpy(&dlPageAlloc.pagePdcchCfg, &cell->cellCfg.sib1SchCfg.sib1PdcchCfg, sizeof(PdcchCfg));
+ dlPageAlloc.pagePdcchCfg.dci.rnti = P_RNTI;
+
+ /*Fill BWP*/
+ memcpy(&dlPageAlloc.bwp, &cell->cellCfg.sib1SchCfg.bwp, sizeof(BwpCfg));
+
+ /*Fill PDSCH*/
+ if(schFillPagePdschCfg(cell, &dlPageAlloc.pagePdschCfg, pdschTime, tbSize, pageInfo->mcs, startPrb) != ROK)
+ {
+ DU_LOG("\nERROR --> SCH: Issue in PDSCH Allocation for Paging at SFN:%d, SLOT:%d",\
+ pdschTime.sfn, pdschTime.slot);
+ break;
+ }
+ dlPageAlloc.pagePdcchCfg.dci.pdschCfg = &dlPageAlloc.pagePdschCfg;
+
+ /*Fill Page PDU information*/
+ dlPageAlloc.dlPagePduLen = pageInfo->msgLen;
+
+ SCH_ALLOC(dlPageAlloc.dlPagePdu, sizeof(dlPageAlloc.dlPagePduLen));
+
+ if(dlPageAlloc.dlPagePdu == NULLP)
+ {
+ DU_LOG("\nERROR --> SCH: Memory Allocation Failed during Page Resource allocation");
+ break;
+ }
+ memcpy(dlPageAlloc.dlPagePdu, pageInfo->pagePdu, dlPageAlloc.dlPagePduLen);
+
+ /* Send msg to MAC */
+ if(sendDlPageAllocToMac(&dlPageAlloc, schInst) != ROK)
+ {
+ DU_LOG("\nERROR --> SCH : Sending DL Paging allocation from SCH to MAC failed");
+ SCH_FREE(dlPageAlloc.dlPagePdu, sizeof(dlPageAlloc.dlPagePduLen));
+ break;
+ }
+ ret = ROK;
+ break;
+ }
+
+ /*Remove the Page Node*/
+ SCH_FREE(pageInfo->pagePdu, pageInfo->msgLen);
+ schDeleteFromPageInfoList(&(cell->pageCb.pageIndInfoRecord[currTime.sfn]), pageInfoNode);
+
+ return(ret);
+
+}
+