#include "du_mgr.h"
#include "du_utils.h"
#include "du_cell_mgr.h"
+#include "PCCH-Config.h"
+#include "PagingUE-Identity.h"
+#include "PagingRecord.h"
+#include "PagingRecordList.h"
+#include "PagingRrc.h"
+#include "PCCH-MessageType.h"
+#include "PCCH-Message.h"
+#include "odu_common_codec.h"
#ifdef O1_ENABLE
memset(tmpPlmn, 0, 4);
buildPlmnId(duCb.cfgCellLst[cfgIdx]->cellInfo.nrEcgi.plmn, tmpPlmn);
if(duCb.cfgCellLst[cfgIdx]->cellInfo.nrEcgi.cellId == nci &&
- (strcmp((const char*)tmpPlmn, (const char*)plmnStr) == 0))
+ (strcmp((const char*)tmpPlmn, (const char*)plmnStr) == 0))
{
- cellCb = duCb.cfgCellLst[cfgIdx];
- break;
+ cellCb = duCb.cfgCellLst[cfgIdx];
+ break;
}
else
{
- DU_LOG("\nERROR --> DU APP : No Cell found for NCI %d", nci);
- return RFAILED;
+ DU_LOG("\nERROR --> DU APP : No Cell found for NCI %d", nci);
+ return RFAILED;
}
}
cellCb->cellStatus = ACTIVATION_IN_PROGRESS;
cellCb->cellInfo.nrPci = nRPci;
+ if((cmHashListInit(&(cellCb->pagingInfoMap), MAX_SFN, sizeof(DuPagInfoList),\
+ FALSE, CM_HASH_KEYTYPE_CONID, DU_APP_MEM_REGION, DU_POOL)) != ROK)
+ {
+ DU_LOG("ERROR --> DU APP: Failed to Initialize the Paging Hash Map");
+ return RFAILED;
+ }
duCb.actvCellLst[cellCb->cellId -1] = cellCb;
duCb.numActvCells++;
uint8_t duGetCellCb(uint16_t cellId, DuCellCb **cellCb)
{
uint8_t cellIdx = 0;
+
for(cellIdx=0; cellIdx < MAX_NUM_CELL; cellIdx++)
{
if(duCb.actvCellLst[cellIdx] && (duCb.actvCellLst[cellIdx]->cellId == cellId))
return ROK;
}
+/******************************************************************************
+* @brief Check Paging Record for a Particular Paging Frame
+*
+* @details
+*
+* Function : checkPagingRecord
+*
+* Functionality:
+* Check Paging Record for a Particular Paging Frame
+*
+* @params[in] DuCellCb *cellCb
+*
+* @return void
+*
+*
+******************************************************************************/
+uint8_t checkPagingRecord(DuCellCb *cellCb)
+{
+ uint16_t pf = 0;
+ DuPagInfoList *pagInfoLLFromPF = NULLP;
+ DuPagUeList *pagInfo = NULLP;
+
+ /*DUAPP may send PagingReq to MAC for future SFN so that Schedular can
+ * schedule Paging on the exact occurence of the Slot.*/
+ pf = (cellCb->currSlotInfo.sfn + PAGING_SCHED_DELTA) % MAX_SFN;
+
+ pagInfoLLFromPF = findPagingInfoFromMap(pf, &(cellCb->pagingInfoMap));
+ if(pagInfoLLFromPF == NULLP)
+ {
+ /*No Page is present for pf thus exiting*/
+ return ROK;
+ }
+
+ do
+ {
+ pagInfo = handlePageInfoLL(pf, NULLD, &(pagInfoLLFromPF->pagInfoList), TRAVERSE_ALL);
+ if(pagInfo != NULLP)
+ {
+ if(buildAndSendPagingReqToMac(pf, pagInfo->i_s, &(pagInfo->pagUeList)) != ROK)
+ {
+ DU_LOG("\nERROR --> DU APP: Issue in Building Page RRC PDU i_s:%d",pagInfo->i_s);
+ return RFAILED;
+ }
+ handlePageInfoLL(pf, pagInfo->i_s, &(pagInfoLLFromPF->pagInfoList), DELETE);
+ }
+ }while(pagInfo != NULLP);
+
+ cmHashListDelete(&(cellCb->pagingInfoMap), (PTR)pagInfoLLFromPF);
+ return ROK;
+}
+
/*****************************************************************
* @brief Handles slot indication from MAC
*
uint8_t duHandleSlotInd(Pst *pst, SlotTimingInfo *slotIndInfo)
{
uint8_t cellIdx = 0, ret = ROK;
- DuCellCb *duCellCb;
+ DuCellCb *duCellCb = NULLP;
if(slotIndInfo)
{
{
duCellCb->currSlotInfo.sfn = slotIndInfo->sfn;
duCellCb->currSlotInfo.slot = slotIndInfo->slot;
+ checkPagingRecord(duCellCb);
}
else
{
{
DuCellCb *cellCb = NULLP;
-#ifndef O1_ENABLE
-
- /*Note: Static Configuration, when O1 is not configuring the RRM policy*/
- RrmPolicy *rrmPolicy;
- DU_ALLOC(rrmPolicy, sizeof(RrmPolicy));
- rrmPolicy->rsrcType = RSRC_PRB;
- rrmPolicy->numMemberList = 1;
- DU_ALLOC(rrmPolicy->memberList, sizeof(PolicyMemberList *));
- DU_ALLOC(rrmPolicy->memberList[0], sizeof(PolicyMemberList));
-
- memset(&rrmPolicy->memberList[0]->plmn, 0, sizeof(Plmn));
- rrmPolicy->memberList[0]->snssai.sst = 1;
- rrmPolicy->memberList[0]->snssai.sd[0] = 2;
- rrmPolicy->memberList[0]->snssai.sd[1] = 3;
- rrmPolicy->memberList[0]->snssai.sd[2] = 4;
- rrmPolicy->policyMinRatio = 30;
- rrmPolicy->policyMaxRatio = 90;
- rrmPolicy->policyDedicatedRatio = 10;
-#endif
-
if(cellId->cellId <=0 || cellId->cellId > MAX_NUM_CELL)
{
DU_LOG("\nERROR --> DU APP : Invalid Cell Id %d in duHandleCellUpInd()", cellId->cellId);
cellCb->cellStatus = ACTIVATED;
gCellStatus = CELL_UP;
-#ifdef O1_ENABLE
if(duCfgParam.tempSliceCfg.rrmPolicy)
BuildAndSendSliceConfigReq(duCfgParam.tempSliceCfg.rrmPolicy, duCfgParam.tempSliceCfg.totalRrmPolicy, duCfgParam.tempSliceCfg.totalSliceCount);
+#ifdef O1_ENABLE
DU_LOG("\nINFO --> DU APP : Raise cell UP alarm for cell id=%d", cellId->cellId);
raiseCellAlrm(CELL_UP_ALARM_ID, cellId->cellId);
setCellOpState(cellId->cellId, ENABLED, ACTIVE);
-#else
- BuildAndSendSliceConfigReq(&rrmPolicy,1, rrmPolicy->numMemberList);
#endif
}
return ROK;
}
+/*******************************************************************
+ * @brief Free PCCH PDU structure
+ *
+ * @details
+ *
+ * Function : freePcchPdu
+ *
+ * Functionality: Free PCCH PDU structure
+ *
+ * @params[in] PCCH_Message_t *pcchMsg
+ *
+ * @return void
+ *
+ * ****************************************************************/
+void freePcchPdu(PCCH_Message_t *pcchMsg)
+{
+ PagingRrc_t *pagingMsg = NULLP;
+ uint8_t recordIdx = 0;
+
+ if(pcchMsg != NULLP)
+ {
+ if(pcchMsg->message.choice.c1 != NULLP)
+ {
+ pagingMsg = pcchMsg->message.choice.c1->choice.paging;
+ if(pagingMsg != NULLP)
+ {
+ if(pagingMsg->pagingRecordList)
+ {
+ if(pagingMsg->pagingRecordList->list.array == NULLP)
+ {
+ for(recordIdx = 0; recordIdx < pagingMsg->pagingRecordList->list.count; recordIdx++)
+ {
+ if(pagingMsg->pagingRecordList->list.array[recordIdx] != NULLP)
+ {
+ DU_FREE(pagingMsg->pagingRecordList->list.array[recordIdx]->ue_Identity.choice.ng_5G_S_TMSI.buf,\
+ pagingMsg->pagingRecordList->list.array[recordIdx]->ue_Identity.choice.ng_5G_S_TMSI.size);
+ DU_FREE(pagingMsg->pagingRecordList->list.array[recordIdx], sizeof(PagingRecord_t));
+ }
+ }
+ DU_FREE(pagingMsg->pagingRecordList->list.array, pagingMsg->pagingRecordList->list.size);
+ }
+ DU_FREE(pagingMsg->pagingRecordList, sizeof(PagingRecordList_t));
+ }
+ DU_FREE(pcchMsg->message.choice.c1->choice.paging, sizeof(PagingRrc_t));
+ }
+ DU_FREE(pcchMsg->message.choice.c1 , sizeof(PCCH_MessageType_t));
+ }
+ DU_FREE(pcchMsg , sizeof(PCCH_Message_t));
+ }
+}
+
+/*******************************************************************
+ * @brief Builds the Paging RRC PDU and forwards it to MAC
+ *
+ * @details
+ *
+ * Function : buildAndSendPagingReqToMac
+ *
+ * Functionality: Builds the Paging RRC PDU[As per Spec 38.331, Annexure A]
+ * and forwards it to MAC as Buffer along with PF and i_s
+ *
+ * @params[in] uint16_t pf, uint8_t i_s,CmLListCp *pageUeLL
+ *
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t buildAndSendPagingReqToMac(uint16_t pf, uint8_t i_s, CmLListCp *pageUeLL)
+{
+ CmLList *node = NULLP, *next = NULLP;
+ DuPagUeRecord *ueRecord = NULLP;
+ PCCH_Message_t *pcchMsg = NULLP;
+ asn_enc_rval_t encRetVal;
+ PagingRrc_t *pagingMsg = NULLP;
+ MacPageReq *macPageReq = NULLP;
+ uint16_t bufIdx = 0;
+ uint8_t recordIdx = 0, ret = RFAILED;
+
+ /*As per 38.473 Sec 9.3.1.39,5G-S-TMSI :48 Bits >> Bytes and 0 UnusedBits */
+ uint8_t totalByteInTmsi = 6, unusedBitsInTmsi = 0;
+
+ if(pageUeLL == NULLP || pageUeLL->count == 0)
+ {
+ DU_LOG("\nERROR --> DU APP: UE Page Record LL is empty");
+ return RFAILED;
+ }
+
+ while(true)
+ {
+ memset(&encRetVal, 0, sizeof(asn_enc_rval_t));
+ DU_ALLOC(pcchMsg , sizeof(PCCH_Message_t));
+ if(pcchMsg == NULLP)
+ {
+ DU_LOG("\nERROR --> DU APP: buildAndSendPagingToMac(): (pccchMsg) Memory Alloction failed!");
+ break;
+ }
+ pcchMsg->message.present = PCCH_MessageType_PR_c1;
+ DU_ALLOC(pcchMsg->message.choice.c1 , sizeof(PCCH_MessageType_t));
+ if(pcchMsg->message.choice.c1 == NULLP)
+ {
+ DU_LOG("\nERROR --> DU APP: buildAndSendPagingToMac(); (C1) Memory Alloction failed!");
+ break;
+ }
+ pcchMsg->message.choice.c1->present = PCCH_MessageType__c1_PR_paging;
+ DU_ALLOC(pcchMsg->message.choice.c1->choice.paging, sizeof(PagingRrc_t));
+
+ pagingMsg = pcchMsg->message.choice.c1->choice.paging;
+ if(pagingMsg == NULLP)
+ {
+ DU_LOG("\nERROR --> DU APP: buildAndSendPagingToMac(); (Paging) Memory Alloction failed!");
+ break;
+ }
+ DU_ALLOC(pagingMsg->pagingRecordList, sizeof(PagingRecordList_t));
+ if(pagingMsg->pagingRecordList == NULLP)
+ {
+ DU_LOG("\nERROR --> DU APP: buildAndSendPagingToMac(); (Paging Record List) Memory Alloction failed!");
+ break;
+ }
+
+ pagingMsg->pagingRecordList->list.count = pageUeLL->count;
+
+ /*As per Spec 38.331, maxNrofPageRec : 32 [Maximum number of page records]*/
+ if(pageUeLL->count > MAX_PAGING_UE_RECORDS)
+ {
+ pagingMsg->pagingRecordList->list.count = MAX_PAGING_UE_RECORDS;
+ }
+
+ pagingMsg->pagingRecordList->list.size = pageUeLL->count * (sizeof(PagingRecord_t *));
+ DU_ALLOC(pagingMsg->pagingRecordList->list.array, pagingMsg->pagingRecordList->list.size);
+ if(pagingMsg->pagingRecordList->list.array == NULLP)
+ {
+ DU_LOG("\nERROR --> DU APP: buildAndSendPagingToMac(); (Array) Memory Alloction failed!");
+ break;
+ }
+ for(recordIdx = 0; recordIdx < pageUeLL->count; recordIdx++)
+ {
+ DU_ALLOC(pagingMsg->pagingRecordList->list.array[recordIdx], sizeof(PagingRecord_t));
+ if(pagingMsg->pagingRecordList->list.array[recordIdx] == NULLP)
+ {
+ DU_LOG("\nERROR --> DU APP: buildAndSendPagingToMac(); (Record) Memory Alloction failed!");
+ break;
+ }
+ }
+ recordIdx = 0;
+ node = pageUeLL->first;
+ while(node && (recordIdx < MAX_PAGING_UE_RECORDS))
+ {
+ next = node->next;
+ ueRecord = (DuPagUeRecord *)node->node;
+ if(ueRecord)
+ {
+ /*TODO : When Connected Mode Paging will be supported then I_RNTI will be introduced*/
+ pagingMsg->pagingRecordList->list.array[recordIdx]->ue_Identity.present = PagingUE_Identity_PR_ng_5G_S_TMSI;
+ pagingMsg->pagingRecordList->list.array[recordIdx]->ue_Identity.choice.ng_5G_S_TMSI.size = totalByteInTmsi*sizeof(uint8_t);
+ DU_ALLOC(pagingMsg->pagingRecordList->list.array[recordIdx]->ue_Identity.choice.ng_5G_S_TMSI.buf,\
+ pagingMsg->pagingRecordList->list.array[recordIdx]->ue_Identity.choice.ng_5G_S_TMSI.size);
+ if(pagingMsg->pagingRecordList->list.array[recordIdx]->ue_Identity.choice.ng_5G_S_TMSI.buf == NULLP)
+ {
+ DU_LOG("\nERROR --> DU APP: buildAndSendPagingToMac(); (5gsTmsi buffer) Memory Allocation failed!");
+ break;
+ }
+ fillBitString(&pagingMsg->pagingRecordList->list.array[recordIdx]->ue_Identity.choice.ng_5G_S_TMSI,\
+ unusedBitsInTmsi, totalByteInTmsi, ueRecord->sTmsi);
+ recordIdx++;
+ }
+
+ if(duDelNodeFromLList(pageUeLL, node) == ROK)
+ DU_FREE(ueRecord, sizeof(DuPagUeRecord));
+ node = next;
+ }
+ if(node != NULLP && (recordIdx < MAX_PAGING_UE_RECORDS))
+ {
+ /*This leg is hit because Whole UE REcord List was not traversed as
+ * some issue happened thus exiting the main while*/
+ break;
+ }
+ xer_fprint(stdout, &asn_DEF_PCCH_Message, pcchMsg);
+ memset(encBuf, 0, ENC_BUF_MAX_LEN);
+ encBufSize = 0;
+ /* Encode the PCCH RRC PDU as APER */
+ encRetVal = aper_encode(&asn_DEF_PCCH_Message, 0, pcchMsg, PrepFinalEncBuf,\
+ encBuf);
+
+ if(encRetVal.encoded == ENCODE_FAIL)
+ {
+ DU_LOG("\nERROR --> F1AP : Could not encode Paging structure (at %s)\n",\
+ encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+ break;
+ }
+ else
+ {
+ DU_LOG("\nDEBUG --> F1AP : Created APER encoded buffer for RRCPDU for PagingMsg \n");
+
+ DU_ALLOC_SHRABL_BUF(macPageReq, sizeof(MacPageReq));
+ if(macPageReq == NULLP)
+ {
+ DU_LOG("\nERROR --> DU APP: buildAndSendPagingToMac(); (macPageReq) Memory Alloction failed!");
+ break;
+ }
+
+ macPageReq->pf = pf;
+ macPageReq->i_s = i_s;
+ macPageReq->pduLen = encBufSize;
+ DU_ALLOC_SHRABL_BUF(macPageReq->pagePdu, macPageReq->pduLen);
+ if(macPageReq->pagePdu == NULLP)
+ {
+ DU_LOG("\nERROR --> DU APP: buildAndSendPagingToMac(); (PagePDU) Memory Alloction failed!");
+ break;
+ }
+ memcpy(macPageReq->pagePdu, encBuf, macPageReq->pduLen);
+ }
+ ret = ROK;
+ break;
+ }
+ freePcchPdu(pcchMsg);
+ return ret;
+}
+
+/*******************************************************************
+ * @brief Keeping the record of Paging having a particular SFN and index associated
+ *
+ * @details
+ *
+ * Function : insertPagingRecord
+ *
+ * Functionality: Insert record of Paging assoc with particular SFN and index associated
+ *
+ * @params[in] DuCellCb* cellCb, uint16_t iterations
+ * DuPagingMsg rcvdF1apPagingParam
+ *
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t insertPagingRecord(DuCellCb* cellCb, DuPagingMsg *rcvdF1apPagingParam, uint16_t iterations)
+{
+ uint16_t maxIterations = 0;
+ DuPagInfoList *pagInfoLLFromPF = NULLP;
+ DuPagUeList *pageUeLL = NULLP;
+ DuPagUeRecord *ueRecord = NULLP;
+
+#if 0
+ printPageList(&(cellCb->pagingInfoMap));
+#endif
+
+ /*MAX Iteration : A UE can be paged at every T frames thus MAX determines
+ *how many Paging Frame(s) can be considered for Paging this UE*/
+ maxIterations = MAX_SFN/rcvdF1apPagingParam->T;
+ if(iterations >= maxIterations)
+ {
+ DU_LOG("\nERROR --> DU APP: MAX Iterations reached for UEID:%d, thus Paging is dropped!", rcvdF1apPagingParam->pagUeId);
+ return RFAILED;
+ }
+
+ /*[Step1]: Extracting the PF from the HasMap between PF and PagingInfoList*/
+ pagInfoLLFromPF = findPagingInfoFromMap(rcvdF1apPagingParam->pagingFrame, &(cellCb->pagingInfoMap));
+ if(pagInfoLLFromPF != NULLP)
+ {
+ /*[Step2]: Extracting the PageInfo List for the Paging Indices(i_s)*/
+ pageUeLL = handlePageInfoLL(rcvdF1apPagingParam->pagingFrame, rcvdF1apPagingParam->i_s, \
+ &(pagInfoLLFromPF->pagInfoList), CREATE);
+
+ if(pageUeLL != NULLP)
+ {
+ /*[Step3]: Check whether MAX UE Record against this PF and i_s has reached(Spec 38.331, Annexure A)*/
+ if(pageUeLL->pagUeList.count < MAX_PAGING_UE_RECORDS)
+ {
+ /*[Step4]: Insert the Paging Record to the end of the UE record List*/
+ ueRecord = handlePageUeLL(rcvdF1apPagingParam->pagUeId, rcvdF1apPagingParam->sTmsi,\
+ &(pageUeLL->pagUeList), CREATE);
+
+ if(ueRecord == NULLP)
+ {
+ DU_LOG("\nERROR --> DU APP: Unable to create UE Record in PagingList");
+ return RFAILED;
+ }
+ DU_LOG("\nDEBUG --> DU APP: UE Record created successfully in PagingList");
+ return ROK;
+ }
+ else
+ {
+ /*Since MAX Page record has reached for this PF thus calculating and
+ *moving this UE to next Paging Cycle*/
+ DU_LOG("\nINFO --> DU APP: Max Page Record reached for PagingFrame:%d",rcvdF1apPagingParam->pagingFrame);
+ rcvdF1apPagingParam->pagingFrame = ((rcvdF1apPagingParam->pagingFrame + rcvdF1apPagingParam->T) % MAX_SFN);
+ iterations++;
+
+ return insertPagingRecord(cellCb, rcvdF1apPagingParam, iterations);
+ }
+ }
+ }
+ /*Reaching here means that PF has no entry in the PageLists,
+ *Thus creating, Updating and inseritng the Paging Map, List and UE record.*/
+
+ DU_ALLOC(pagInfoLLFromPF, sizeof(DuPagInfoList));
+
+ if(pagInfoLLFromPF == NULLP)
+ {
+ DU_LOG("\nERROR --> DU APP: PageInfo Map allocation failed.");
+ return RFAILED;
+ }
+ pagInfoLLFromPF->pf = rcvdF1apPagingParam->pagingFrame;
+ pageUeLL = handlePageInfoLL(rcvdF1apPagingParam->pagingFrame, rcvdF1apPagingParam->i_s, &(pagInfoLLFromPF->pagInfoList), CREATE);
+ ueRecord = handlePageUeLL(rcvdF1apPagingParam->pagUeId, rcvdF1apPagingParam->sTmsi, &(pageUeLL->pagUeList), CREATE);
+ if(cmHashListInsert(&(cellCb->pagingInfoMap), (PTR)pagInfoLLFromPF, (uint8_t *)&(pagInfoLLFromPF->pf), sizeof(uint16_t)) == RFAILED)
+ {
+ DU_LOG("\nERROR --> DU APP: Hash Map Insertion Failed for PF:%d.",rcvdF1apPagingParam->pagingFrame);
+ }
+
+#if 0
+ printPageList(&(cellCb->pagingInfoMap));
+#endif
+
+ return ROK;
+
+
+}
+
+/*******************************************************************
+ * @brief Calculate and fill paging information of a UE belongs to a particular cell
+ *
+ * @details
+ *
+ * Function : calcAndFillPagingInfoInCellCb
+ *
+ * Functionality: Calculate PO and i_s and
+ * fill paging information of a UE in DuCellCb
+ *
+ * @params[in] DuCellCb* cellCb, uint8_t pagUeId,
+ * DuPagingMsg rcvdF1apPagingParam
+ *
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t calcAndFillPagingInfoInCellCb(DuCellCb* cellCb, DuPagingMsg *rcvdF1apPagingParam)
+{
+ uint8_t ns = 0;
+ uint16_t T=0, N=0, pagingFrame = 0, n = 0;
+ uint16_t currentSfn = 0, sfn = 0, newSfn = 0;
+ PcchCfg duPcchCfg;
+
+ if(cellCb)
+ {
+ /* calculate paging frame and paging offset */
+ duPcchCfg = duCfgParam.sib1Params.srvCellCfgCommSib.dlCfg.pcchCfg;
+ rcvdF1apPagingParam->pagingFrameOffset = duPcchCfg.pageFrameOffset;
+ ns = duPcchCfg.ns;
+
+ /*
+ * Fill the Value of T (DRX cycle of the UE)
+ * T = min(UE Specific DRX value allocated by upper layers, default DRX
+ * broadcast in System Information) */
+ if((rcvdF1apPagingParam->pagingDrxPres) && (duPcchCfg.dfltPagingCycle > rcvdF1apPagingParam->pagingDrx))
+ {
+ T = rcvdF1apPagingParam->pagingDrx;
+ }
+ else
+ {
+ T = duPcchCfg.dfltPagingCycle;
+ }
+ rcvdF1apPagingParam->T = T;
+
+ /* N= number of total paging frames in T */
+
+ switch(duPcchCfg.nAndPagingFrmOffsetType)
+ {
+ case PCCH_Config__nAndPagingFrameOffset_PR_oneT:
+ N = T;
+ break;
+ case PCCH_Config__nAndPagingFrameOffset_PR_halfT:
+ N = T/2;
+ break;
+ case PCCH_Config__nAndPagingFrameOffset_PR_quarterT:
+ N = T/4;
+ break;
+ case PCCH_Config__nAndPagingFrameOffset_PR_oneEighthT:
+ N = T/8;
+ break;
+ case PCCH_Config__nAndPagingFrameOffset_PR_oneSixteenthT:
+ N = T/16;
+ break;
+ default:
+ N = T;
+ break;
+ }
+
+ /* calculate the Value of pagingFrame */
+ /*Refer: 38.304 Sec 7.1: (SFN + PF_offset) mod T = (T div N)*(UE_ID mod N)*/
+ //RHS of above formula
+ pagingFrame = (T / N) * ((rcvdF1apPagingParam->pagUeId) % N);
+
+ //LHS of above formula
+ if(pagingFrame)
+ {
+ pagingFrame = (pagingFrame - rcvdF1apPagingParam->pagingFrameOffset)%T;
+ }
+ else /*Paging Frame = 0 so thus PF will be calculated on Paging Cycle*/
+ {
+ pagingFrame = (T - rcvdF1apPagingParam->pagingFrameOffset)%T;
+ }
+
+ /*Paging Frame(SFN for Paging) has to be determined from current SFN. */
+ /*For eg: If T =128, PF(Calculated above) = 20; SFN can be 20,148,276,...
+ * If currSFN is running as 200 then (newSFN % T) == (T/N)*(UE_ID%N)
+ *Thus SFN at which paging has to be sent needs to be delayed and newSFN = 276*/
+
+ currentSfn = cellCb->currSlotInfo.sfn;
+
+ /*Multiplication Factor(x) to find the next best SFN to process paging*/
+
+ /*Below calculation will determine in which nth cycle of T (DRX cycle),new PF
+ * may fall(Delayed one)*/
+ if(currentSfn > pagingFrame)
+ {
+ n = ((currentSfn - pagingFrame) / T) + 1;
+ }
+ else
+ {
+ n = ((pagingFrame - currentSfn) / T) + 1;
+ }
+
+ newSfn = pagingFrame + T * n;
+
+ /*When pagingFrame is future from currSFN then pagingFrame will be used
+ * else pagingFrame is delayed thus newSFN will be used.*/
+ if(currentSfn <= pagingFrame)
+ {
+ if(pagingFrame > currentSfn + PAGING_SCHED_DELTA)
+ {
+ sfn = pagingFrame;
+ }
+ else
+ {
+ sfn = newSfn;
+ }
+ }
+ else
+ {
+
+ if(newSfn > currentSfn + PAGING_SCHED_DELTA)
+ {
+ sfn = newSfn;
+ }
+ else /*If newSFN is near to currSFN then delay it more by T*/
+ {
+ newSfn = newSfn + T;
+ sfn = newSfn;
+ }
+ }
+ rcvdF1apPagingParam->pagingFrame = (sfn % MAX_SFN);
+ rcvdF1apPagingParam->i_s = ((uint32_t)(floor(rcvdF1apPagingParam->pagUeId / N)) % ns);
+
+ DU_LOG("\nINFO --> DU APP : Successfully filled paging parameter in DuCellCb");
+ memcpy(&cellCb->tmpPagingInfoOfUe, rcvdF1apPagingParam, sizeof(DuPagingMsg));
+ }
+ else
+ {
+ DU_LOG("\nINFO --> DU APP : calcAndFillPagingInfoInCellCb(): Received null pointer");
+ return RFAILED;
+ }
+ return ROK;
+}
+
+/*******************************************************************
+ * @brief Paging Processing on a particular cell
+ *
+ * @details
+ *
+ * Function : processPagingMsg
+ *
+ * Functionality: Process Paging on a particular cell
+ *
+ * @params[in] uint16_t cellId
+ * DuPagingMsg rcvdF1apPagingParam
+ *
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t processPagingMsg(uint16_t cellId, DuPagingMsg *rcvdF1apPagingParam)
+{
+ uint16_t cellIdx = 0, iteration = 0;
+
+ GET_CELL_IDX(cellId, cellIdx);
+
+ if(duCb.actvCellLst[cellIdx] == NULLP || duCb.actvCellLst[cellIdx]->cellId != cellId)
+ {
+ DU_LOG("\nERROR --> DU APP : processPagingMsg(): CellId[%d] is not found", cellId);
+ return RFAILED;
+ }
+
+ if(calcAndFillPagingInfoInCellCb(duCb.actvCellLst[cellIdx], rcvdF1apPagingParam) != ROK)
+ {
+ DU_LOG("\nERROR --> DU APP : CellCb:%d not present to fill UE Paging Information",cellId);
+ return RFAILED;
+ }
+ if(insertPagingRecord(duCb.actvCellLst[cellIdx], rcvdF1apPagingParam, iteration) != ROK)
+ {
+ DU_LOG("\nERROR --> DU APP : Insertion Failed ofUE Paging Information");
+ return RFAILED;
+ }
+ return ROK;
+
+}
/**********************************************************************
End of file
**********************************************************************/
Code Review / o-du / l2.git / blobdiff