+/****************************************************************************
+ *
+ * @brief Stores the Paging Configuration from DU APP in CellCb
+ *
+ * @details
+ *
+ * Function : schProcPagingParam
+ *
+ * Functionality:
+ * Process the Paging Configuration when FirstPDCCHMonitoring for
+ * Paging Ocassion is not present.
+ *
+ * As per 38.304 Sec 7.1,
+ * "When firstPDCCH-MonitoringOccasionOfPO is present, the
+ * starting PDCCH monitoring occasion number of (i_s + 1)th PO is the
+ * (i_s + 1)th value of the firstPDCCHMonitoringOccasionOfPO
+ * parameter; otherwise, it is equal to i_s * S."
+ * "S = number of actual transmitted SSBs determined according
+ * to ssb-PositionsInBurst in SIB1"
+ *
+ * @params[in] SchCellCb *cell
+ *
+ * @return void
+ *
+ *************************************************************************/
+void schProcPagingCfg(SchCellCb *cell)
+{
+ PageCfg *pageCfgRcvd = NULL;
+ uint8_t i_sIdx = 0;
+
+ pageCfgRcvd = &(cell->cellCfg.sib1SchCfg.pageCfg);
+
+ if(pageCfgRcvd->poPresent == TRUE)
+ {
+ /*Fetching first Pdcch Monitoring Occasion for SFN (i_s + 1)th*/
+ for(i_sIdx = 0; i_sIdx < pageCfgRcvd->numPO; i_sIdx++)
+ {
+ cell->pageCb.pagMonOcc[i_sIdx].pagingOccSlot = pageCfgRcvd->pagingOcc[i_sIdx] / MAX_SYMB_PER_SLOT ;
+ if ((pageCfgRcvd->pagingOcc[i_sIdx] % MAX_SYMB_PER_SLOT) != 0 )
+ {
+ cell->pageCb.pagMonOcc[i_sIdx].pagingOccSlot++;
+ }
+
+ cell->pageCb.pagMonOcc[i_sIdx].frameOffset = 0;
+
+ }
+ }
+ else
+ {
+ schCfgPdcchMonOccOfPO(cell);
+ }
+}
+
+/****************************************************************************
+ *
+ * @brief Calculate PO if not present in Configuration
+ *
+ * @details
+ *
+ * Function : schCfgPdcchMonOccOfPO
+ *
+ * Functionality: In this function, PO are calculated i_s * S because
+ * FirstPDCCHMonitoring_ForPO is not present.
+ *
+ * @params[in] SchCellCb *cellCb
+ *
+ * @return void
+ *
+ *************************************************************************/
+void schCfgPdcchMonOccOfPO(SchCellCb *cell)
+{
+ uint8_t cnt = 0, incr = 1, i_sIdx = 0, frameOffSet = 0;
+ uint8_t nsValue = cell->cellCfg.sib1SchCfg.pageCfg.numPO;
+ uint8_t totalNumSsb = cell->cellCfg.ssbSchCfg.totNumSsb;
+ SlotTimingInfo tmpTimingInfo, pdcchTime;
+
+ /*Starting with First Sfn and slot*/
+ tmpTimingInfo.sfn = 0;
+ tmpTimingInfo.slot = 0;
+
+ pdcchTime = tmpTimingInfo;
+
+ while(i_sIdx < nsValue)
+ {
+ /*Increment frame Offset if PO falls on next SFN*/
+ if(pdcchTime.sfn != tmpTimingInfo.sfn)
+ {
+ frameOffSet++;
+ }
+ pdcchTime = tmpTimingInfo;
+ schIncrSlot(&(tmpTimingInfo), incr, cell->numSlots);
+
+ if (i_sIdx == 0)
+ {
+ cell->pageCb.pagMonOcc[i_sIdx].pagingOccSlot = pdcchTime.slot;
+ cell->pageCb.pagMonOcc[i_sIdx].frameOffset = frameOffSet;
+ i_sIdx++;
+ }
+ else
+ {
+ cnt++;
+ if((cnt == totalNumSsb) && (i_sIdx < MAX_PO_PER_PF))
+ {
+ cell->pageCb.pagMonOcc[i_sIdx].pagingOccSlot = pdcchTime.slot;
+ cell->pageCb.pagMonOcc[i_sIdx].frameOffset = frameOffSet;
+ cnt = 0;
+ i_sIdx++;
+ }
+ }
+ }
+}
+
+/****************************************************************************
+ *
+ * @brief Storing the paging information in SCH database
+ *
+ * @details
+ *
+ * Function : schAddPagingIndtoList
+ *
+ * Functionality: Storing the paging information in SCH database
+ *
+ * @params[in] CmLListCp *storedPageList, CmLList *pageIndInfo
+ *
+ * @return ROK - sucess
+ * RFAILED - failure
+ *
+ *************************************************************************/
+uint8_t schAddPagingIndtoList(CmLListCp *storedPageList,void * pageIndInfo)
+{
+ CmLList *firstNodeOfList = NULLP;
+ CmLList *currentNodeInfo = NULLP;
+ SchPageInfo *tempNode = NULLP, *recvdNode = NULLP;
+
+ recvdNode = (SchPageInfo*) pageIndInfo;
+ CM_LLIST_FIRST_NODE(storedPageList,firstNodeOfList);
+
+ SCH_ALLOC(currentNodeInfo, sizeof(CmLList));
+ if(!currentNodeInfo)
+ {
+ DU_LOG("\nERROR --> SCH : schAddPagingIndtoList() : Memory allocation failed");
+ return RFAILED;
+ }
+
+ currentNodeInfo->node = (PTR)pageIndInfo;
+ while(firstNodeOfList)
+ {
+ tempNode = (SchPageInfo*)(firstNodeOfList->node);
+ if ((recvdNode->pageTxTime.slot < tempNode->pageTxTime.slot))
+ {
+ cmLListInsCrnt(storedPageList, currentNodeInfo);
+ break;
+ }
+ else if ((recvdNode->pageTxTime.slot == tempNode->pageTxTime.slot))
+ {
+ DU_LOG("\nERROR --> SCH : schAddPagingIndtoList() : Slot[%d] is already present in the list", recvdNode->pageTxTime.slot);
+ return RFAILED;
+ }
+ else
+ {
+ CM_LLIST_NEXT_NODE(storedPageList, firstNodeOfList);
+ }
+ }
+
+ if(!firstNodeOfList)
+ {
+ cmLListAdd2Tail(storedPageList, currentNodeInfo);
+ }
+ DU_LOG("\nDEBUG --> SCH : Paging information is stored successfully for PF:%d, Slot:%d",\
+ recvdNode->pageTxTime.sfn, recvdNode->pageTxTime.slot);
+ return ROK;
+}
+
+/****************************************************************************
+ *
+ * @brief Process paging indication at SCH recevied form MAC
+ *
+ * @details
+ *
+ * Function : MacSchPagingInd
+ *
+ * Functionality: Process paging indication at SCH recevied form MAC
+ *
+ * @params[in] Pst *pst, SchPageInd *pageInd
+ *
+ * @return void
+ *
+ *************************************************************************/
+uint8_t MacSchPagingInd(Pst *pst, SchPageInd *pageInd)
+{
+ uint8_t ret = RFAILED;
+ uint16_t cellIdx = 0;
+ Inst inst = pst->dstInst - SCH_INST_START;
+ SchCellCb *cellCb = NULLP;
+ SchPageInfo *pageInfo = NULLP;
+
+ if(pageInd)
+ {
+ DU_LOG("\nDEBUG --> SCH : Received paging indication from MAC for cellId[%d]",\
+ pageInd->cellId);
+
+ /* Fetch Cell CB */
+ for(cellIdx = 0; cellIdx < MAX_NUM_CELL; cellIdx++)
+ {
+ if((schCb[inst].cells[cellIdx]) && (schCb[inst].cells[cellIdx]->cellId == pageInd->cellId))
+ {
+ cellCb = schCb[inst].cells[cellIdx];
+ break;
+ }
+ }
+ if(cellCb)
+ {
+ if(pageInd->i_s > cellCb->cellCfg.sib1SchCfg.pageCfg.numPO)
+ {
+ DU_LOG("\nERROR --> SCH : MacSchPagingInd(): i_s should not be greater than number of paging occasion");
+ }
+ else
+ {
+ SCH_ALLOC(pageInfo, sizeof(SchPageInfo));
+ if(pageInfo)
+ {
+ pageInfo->pf = pageInd->pf;
+ pageInfo->i_s = pageInd->i_s;
+ pageInfo->pageTxTime.cellId = pageInd->cellId;
+ pageInfo->pageTxTime.sfn = (pageInd->pf + cellCb->pageCb.pagMonOcc[pageInd->i_s].frameOffset) % MAX_SFN;
+ pageInfo->pageTxTime.slot = cellCb->pageCb.pagMonOcc[pageInd->i_s].pagingOccSlot;
+ pageInfo->mcs = DEFAULT_MCS;
+ pageInfo->msgLen = pageInd->pduLen;
+ SCH_ALLOC(pageInfo->pagePdu, pageInfo->msgLen);
+ if(!pageInfo->pagePdu)
+ {
+ DU_LOG("\nERROR --> SCH : MacSchPagingInd(): Failed to allocate memory");
+ }
+ else
+ {
+ memcpy(pageInfo->pagePdu, pageInd->pagePdu, pageInfo->msgLen);
+ ret = schAddPagingIndtoList(&cellCb->pageCb.pageIndInfoRecord[pageInfo->pageTxTime.sfn], pageInfo);
+ if(ret != ROK)
+ {
+ DU_LOG("\nERROR --> SCH : MacSchPagingInd(): Failed to store paging record");
+ }
+ }
+ }
+ else
+ {
+ DU_LOG("\nERROR --> SCH : MacSchPagingInd(): Failed to allocate memory");
+ }
+ }
+ }
+ else
+ {
+ DU_LOG("\nERROR --> SCH : Cell ID [%d] not found", pageInd->cellId);
+ }
+ SCH_FREE(pageInd->pagePdu, pageInd->pduLen);
+ SCH_FREE(pageInd, sizeof(SchPageInd));
+ }
+ else
+ {
+ DU_LOG("\nERROR --> SCH : MacSchPagingInd(): Received null pointer");
+ }
+ return ret;
+}