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3 # Copyright (c) [2017-2019] [Radisys] #
5 # Licensed under the Apache License, Version 2.0 (the "License"); #
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17 *******************************************************************************/
19 /************************************************************************
25 Desc: C source code for scheduler fucntions
29 **********************************************************************/
32 @brief This file implements the schedulers main access to MAC layer code.
34 #include "common_def.h"
35 #include "du_app_mac_inf.h"
40 #include "rg_sch_inf.h"
43 #include "tfu.x" /* TFU types */
44 #include "lrg.x" /* layer management typedefs for MAC */
45 #include "rgr.x" /* layer management typedefs for MAC */
46 #include "rg_sch_inf.x" /* typedefs for Scheduler */
47 #include "mac_sch_interface.h"
50 #include "sch_utils.h"
52 #include "sch_slice_based.h"
55 * @brief Scheduler All Apis initialized.
59 * Function : schAllApisInit
61 * This function initializes all Scheduler APIs/functionality for each kind
64 * @param[in] Inst inst, the Scheduler instance
67 void schAllApisInit(Inst inst)
69 schFcfsAllApisInit(&schCb[inst].allApis[SCH_FCFS]);
70 schSliceBasedAllApisInit(&schCb[inst].allApis[SCH_SLICE_BASED]);
74 * @brief Scheduler instance Configuration Handler.
78 * Function : SchInstCfg
80 * This function in called by SchProcGenCfgReq(). It handles the
81 * general configurations of the scheduler instance. Returns
82 * reason for success/failure of this function.
84 * @param[in] RgCfg *cfg, the Configuaration information
86 * -# LCM_REASON_NOT_APPL
87 * -# LCM_REASON_INVALID_MSGTYPE
88 * -# LCM_REASON_MEM_NOAVAIL
90 uint8_t SchInstCfg(RgCfg *cfg, Inst dInst)
92 uint16_t ret = LCM_REASON_NOT_APPL;
93 Inst inst = (dInst - SCH_INST_START);
95 DU_LOG("\nDEBUG --> SCH : Entered SchInstCfg()");
96 /* Check if Instance Configuration is done already */
97 if (schCb[inst].schInit.cfgDone == TRUE)
99 return LCM_REASON_INVALID_MSGTYPE;
101 /* Update the Pst structure for LM interface */
102 memcpy(&schCb[inst].schInit.lmPst, &cfg->s.schInstCfg.genCfg.lmPst, sizeof(Pst));
104 schCb[inst].schInit.inst = inst;
105 schCb[inst].schInit.lmPst.srcProcId = schCb[inst].schInit.procId;
106 schCb[inst].schInit.lmPst.srcEnt = schCb[inst].schInit.ent;
107 schCb[inst].schInit.lmPst.srcInst = schCb[inst].schInit.inst +
109 schCb[inst].schInit.lmPst.event = EVTNONE;
111 schCb[inst].schInit.region = cfg->s.schInstCfg.genCfg.mem.region;
112 schCb[inst].schInit.pool = cfg->s.schInstCfg.genCfg.mem.pool;
114 schCb[inst].genCfg.forceCntrlSrbBoOnPCel = cfg->s.schInstCfg.genCfg.forceCntrlSrbBoOnPCel;
115 schCb[inst].genCfg.isSCellActDeactAlgoEnable = cfg->s.schInstCfg.genCfg.isSCellActDeactAlgoEnable;
117 schCb[inst].genCfg.startCellId = cfg->s.schInstCfg.genCfg.startCellId;
119 schCb[inst].schTimersInfo.tmrRes = cfg->s.schInstCfg.genCfg.tmrRes;
120 /* Initialzie the timer queue */
121 memset(&schCb[inst].schTimersInfo.tmrTq, 0, sizeof(CmTqType) * SCH_TQ_SIZE);
122 /* Initialize the timer control point */
123 memset(&schCb[inst].schTimersInfo.tmrTqCp, 0, sizeof(CmTqCp));
124 schCb[inst].schTimersInfo.tmrTqCp.tmrLen = SCH_TQ_SIZE;
126 /* SS_MT_TMR needs to be enabled as schActvTmr needs instance information */
127 /* Timer Registration request to system services */
128 if (ODU_REG_TMR_MT(schCb[inst].schInit.ent, dInst, (int)schCb[inst].schTimersInfo.tmrRes, schActvTmr) != ROK)
130 DU_LOG("\nERROR --> SCH : SchInstCfg(): Failed to register timer.");
131 return (LCM_REASON_MEM_NOAVAIL);
134 /* Set Config done in TskInit */
135 schCb[inst].schInit.cfgDone = TRUE;
136 DU_LOG("\nINFO --> SCH : Scheduler gen config done");
138 schAllApisInit(inst);
143 * @brief Layer Manager Configuration request handler.
147 * Function : SchProcGenCfgReq
149 * This function handles the configuration
150 * request received at scheduler instance from the Layer Manager.
151 * -# Based on the cfg->hdr.elmId.elmnt value it invokes one of the
152 * functions rgHdlGenCfg() or rgHdlSapCfg().
153 * -# Invokes RgMiLrgSchCfgCfm() to send back the confirmation to the LM.
155 * @param[in] Pst *pst, the post structure
156 * @param[in] RgMngmt *cfg, the configuration parameter's structure
160 uint8_t SchProcGenCfgReq(Pst *pst, RgMngmt *cfg)
162 uint8_t ret = LCM_PRIM_OK;
163 uint16_t reason = LCM_REASON_NOT_APPL;
167 if(pst->dstInst < SCH_INST_START)
169 DU_LOG("\nERROR --> SCH : Invalid inst ID");
170 DU_LOG("\nERROR --> SCH : SchProcGenCfgReq(): "
171 "pst->dstInst=%d SCH_INST_START=%d", pst->dstInst,SCH_INST_START);
174 DU_LOG("\nINFO --> SCH : Received scheduler gen config");
175 /* Fill the post structure for sending the confirmation */
176 memset(&cfmPst, 0 , sizeof(Pst));
177 SchFillCfmPst(pst, &cfmPst, cfg);
179 memset(&cfm, 0, sizeof(RgMngmt));
186 cfm.hdr.elmId.elmnt = cfg->hdr.elmId.elmnt;
187 switch(cfg->hdr.elmId.elmnt)
190 reason = SchInstCfg(&cfg->t.cfg,pst->dstInst );
194 reason = LCM_REASON_INVALID_ELMNT;
195 DU_LOG("\nERROR --> SCH : Invalid Elmnt=%d", cfg->hdr.elmId.elmnt);
199 if (reason != LCM_REASON_NOT_APPL)
204 cfm.cfm.status = ret;
205 cfm.cfm.reason = reason;
207 SchSendCfgCfm(&cfmPst, &cfm);
208 /* SCH_FREE(pst->region, pst->pool, (Data *)cfg, sizeof(RgMngmt)); */
211 }/*-- SchProcGenCfgReq --*/
215 *@brief Returns TDD periodicity in micro seconds
219 * Function : schGetPeriodicityInMsec
221 * This API retunrs TDD periodicity in micro seconds
223 * @param[in] DlUlTxPeriodicity
224 * @return periodicityInMsec
227 uint16_t schGetPeriodicityInMsec(DlUlTxPeriodicity tddPeriod)
229 uint16_t periodicityInMsec = 0;
232 case TX_PRDCTY_MS_0P5:
234 periodicityInMsec = 500;
237 case TX_PRDCTY_MS_0P625:
239 periodicityInMsec = 625;
244 periodicityInMsec = 1000;
247 case TX_PRDCTY_MS_1P25:
249 periodicityInMsec = 1250;
254 periodicityInMsec = 2000;
257 case TX_PRDCTY_MS_2P5:
259 periodicityInMsec = 2500;
264 periodicityInMsec = 5000;
267 case TX_PRDCTY_MS_10:
269 periodicityInMsec = 10000;
274 DU_LOG("\nERROR --> SCH : Invalid DlUlTxPeriodicity:%d", tddPeriod);
278 return periodicityInMsec;
282 *@brief Fills the slotCfg from CellCfg
286 * Function : schFillSlotConfig
288 * This API Fills the slotCfg from CellCfg
290 * @param[in] SchCellCb *cell, TDDCfg tddCfg
293 void schFillSlotConfig(SchCellCb *cell, TDDCfg tddCfg)
295 uint8_t slotIdx = 0, symbolIdx = 0;
297 for(slotIdx =0 ;slotIdx < MAX_TDD_PERIODICITY_SLOTS; slotIdx++)
299 for(symbolIdx = 0; symbolIdx < MAX_SYMB_PER_SLOT; symbolIdx++)
301 /*Fill Full-DL Slots as well as DL symbols ini 1st Flexi Slo*/
302 if(slotIdx < tddCfg.nrOfDlSlots || \
303 (slotIdx == tddCfg.nrOfDlSlots && symbolIdx < tddCfg.nrOfDlSymbols))
305 cell->slotCfg[slotIdx][symbolIdx] = DL_SYMBOL;
308 /*Fill Full-FLEXI SLOT and as well as Flexi Symbols in 1 slot preceding FULL-UL slot*/
309 else if(slotIdx < (MAX_TDD_PERIODICITY_SLOTS - tddCfg.nrOfUlSlots -1) || \
310 (slotIdx == (MAX_TDD_PERIODICITY_SLOTS - tddCfg.nrOfUlSlots -1) && \
311 symbolIdx < (MAX_SYMB_PER_SLOT - tddCfg.nrOfUlSymbols)))
313 cell->slotCfg[slotIdx][symbolIdx] = FLEXI_SYMBOL;
315 /*Fill Partial UL symbols and Full-UL slot*/
318 cell->slotCfg[slotIdx][symbolIdx] = UL_SYMBOL;
325 * @brief init TDD slot config
329 * Function : schInitTddSlotCfg
331 * This API is invoked after receiving schCellCfg
333 * @param[in] schCellCb *cell
334 * @param[in] SchCellCfg *schCellCfg
337 void schInitTddSlotCfg(SchCellCb *cell, SchCellCfg *schCellCfg)
339 uint16_t periodicityInMicroSec = 0;
340 int8_t slotIdx, symbIdx;
342 periodicityInMicroSec = schGetPeriodicityInMsec(schCellCfg->tddCfg.tddPeriod);
343 cell->numSlotsInPeriodicity = (periodicityInMicroSec * pow(2, cell->numerology))/1000;
344 cell->slotFrmtBitMap = 0;
345 schFillSlotConfig(cell, schCellCfg->tddCfg);
346 for(slotIdx = cell->numSlotsInPeriodicity-1; slotIdx >= 0; slotIdx--)
349 /* If the first and last symbol are the same, the entire slot is the same type */
350 if((cell->slotCfg[slotIdx][symbIdx] == cell->slotCfg[slotIdx][MAX_SYMB_PER_SLOT-1]) &&
351 cell->slotCfg[slotIdx][symbIdx] != FLEXI_SYMBOL)
353 switch(cell->slotCfg[slotIdx][symbIdx])
357 /*BitMap to be set to 00 */
358 cell->slotFrmtBitMap = (cell->slotFrmtBitMap<<2);
363 /*BitMap to be set to 01 */
364 cell->slotFrmtBitMap = ((cell->slotFrmtBitMap<<2) | (UL_SLOT));
368 DU_LOG("\nERROR --> SCH : Invalid slot Config in schInitTddSlotCfg");
372 /* slot config is flexible. First set slotBitMap to 10 */
373 cell->slotFrmtBitMap = ((cell->slotFrmtBitMap<<2) | (FLEXI_SLOT));
379 * @brief Fill SSB start symbol
383 * Function : fillSsbStartSymb
385 * This API stores SSB start index per beam
387 * @param[in] SchCellCb *cellCb
392 void fillSsbStartSymb(SchCellCb *cellCb)
394 uint8_t cnt, scs, symbIdx, ssbStartSymbArr[SCH_MAX_SSB_BEAM];
396 scs = cellCb->cellCfg.ssbScs;
398 memset(ssbStartSymbArr, 0, sizeof(SCH_MAX_SSB_BEAM));
400 /* Determine value of "n" based on Section 4.1 of 3GPP TS 38.213 */
405 if(cellCb->cellCfg.ssbFrequency <= 300000)
406 cnt = 2;/* n = 0, 1 */
408 cnt = 4; /* n = 0, 1, 2, 3 */
409 for(uint8_t idx=0; idx<cnt; idx++)
411 /* start symbol determined using {2, 8} + 14n */
412 ssbStartSymbArr[symbIdx++] = 2 + MAX_SYMB_PER_SLOT*idx;
413 ssbStartSymbArr[symbIdx++] = 8 + MAX_SYMB_PER_SLOT*idx;
419 if(cellCb->cellCfg.ssbFrequency <= 300000)
422 cnt = 2; /* n = 0, 1 */
423 for(uint8_t idx=0; idx<cnt; idx++)
425 /* start symbol determined using {4, 8, 16, 20} + 28n */
426 ssbStartSymbArr[symbIdx++] = 4 + MAX_SYMB_PER_SLOT*idx;
427 ssbStartSymbArr[symbIdx++] = 8 + MAX_SYMB_PER_SLOT*idx;
428 ssbStartSymbArr[symbIdx++] = 16 + MAX_SYMB_PER_SLOT*idx;
429 ssbStartSymbArr[symbIdx++] = 20 + MAX_SYMB_PER_SLOT*idx;
434 DU_LOG("\nERROR --> SCH : SCS %d is currently not supported", scs);
436 memset(cellCb->ssbStartSymbArr, 0, sizeof(SCH_MAX_SSB_BEAM));
437 memcpy(cellCb->ssbStartSymbArr, ssbStartSymbArr, SCH_MAX_SSB_BEAM);
442 * @brief init cellCb based on cellCfg
446 * Function : schInitCellCb
448 * This API is invoked after receiving schCellCfg
450 * @param[in] schCellCb *cell
451 * @param[in] SchCellCfg *schCellCfg
456 uint8_t schInitCellCb(Inst inst, SchCellCfg *schCellCfg)
458 uint16_t scsInKhz = 0;
459 SchCellCb *cell= NULLP;
460 SCH_ALLOC(cell, sizeof(SchCellCb));
463 DU_LOG("\nERROR --> SCH : Memory allocation failed in schInitCellCb");
467 cell->cellId = schCellCfg->cellId;
468 cell->instIdx = inst;
469 scsInKhz = convertScsEnumValToScsVal(schCellCfg->ssbScs);
471 /*Ref : 3GPP 38.211 Table 4.2-1: SCS = (2 ^ numerology * 15kHz)*/
472 cell->numerology = log2(scsInKhz/BASE_SCS);
473 switch(cell->numerology)
475 case SCH_NUMEROLOGY_0:
477 cell->numSlots = SCH_MU0_NUM_SLOTS;
480 case SCH_NUMEROLOGY_1:
482 cell->numSlots = SCH_MU1_NUM_SLOTS;
485 case SCH_NUMEROLOGY_2:
487 cell->numSlots = SCH_MU2_NUM_SLOTS;
490 case SCH_NUMEROLOGY_3:
492 cell->numSlots = SCH_MU3_NUM_SLOTS;
495 case SCH_NUMEROLOGY_4:
497 cell->numSlots = SCH_MU4_NUM_SLOTS;
501 DU_LOG("\nERROR --> SCH : Numerology %d not supported", cell->numerology);
504 schInitTddSlotCfg(cell, schCellCfg);
507 SCH_ALLOC(cell->schDlSlotInfo, cell->numSlots * sizeof(SchDlSlotInfo*));
508 if(!cell->schDlSlotInfo)
510 DU_LOG("\nERROR --> SCH : Memory allocation failed in schInitCellCb for schDlSlotInfo");
514 SCH_ALLOC(cell->schUlSlotInfo, cell->numSlots * sizeof(SchUlSlotInfo*));
515 if(!cell->schUlSlotInfo)
517 DU_LOG("\nERROR --> SCH : Memory allocation failed in schInitCellCb for schUlSlotInfo");
521 for(uint8_t idx=0; idx<cell->numSlots; idx++)
523 SchDlSlotInfo *schDlSlotInfo;
524 SchUlSlotInfo *schUlSlotInfo;
527 SCH_ALLOC(schDlSlotInfo, sizeof(SchDlSlotInfo));
530 DU_LOG("\nERROR --> SCH : Memory allocation failed in schInitCellCb");
535 SCH_ALLOC(schUlSlotInfo, sizeof(SchUlSlotInfo));
538 DU_LOG("\nERROR --> SCH : Memory allocation failed in schInitCellCb");
542 schInitDlSlot(schDlSlotInfo);
543 schInitUlSlot(schUlSlotInfo);
545 cell->schDlSlotInfo[idx] = schDlSlotInfo;
546 cell->schUlSlotInfo[idx] = schUlSlotInfo;
549 cell->firstSsbTransmitted = false;
550 cell->firstSib1Transmitted = false;
551 fillSsbStartSymb(cell);
554 memset(cell->drxCb, 0, MAX_DRX_SIZE*sizeof(SchDrxCb));
556 schCb[inst].cells[inst] = cell;
558 DU_LOG("\nINFO --> SCH : Cell init completed for cellId:%d", cell->cellId);
564 * @brief Fill SIB1 configuration
568 * Function : fillSchSib1Cfg
570 * Fill SIB1 configuration
572 * @param[in] uint8_t bandwidth : total available bandwidth
573 * uint8_t numSlots : total slots per SFN
574 * SchSib1Cfg *sib1SchCfg : cfg to be filled
575 * uint16_t pci : physical cell Id
576 * uint8_t offsetPointA : offset
579 uint8_t fillSchSib1Cfg(uint8_t mu, uint8_t bandwidth, uint8_t numSlots,SchPdcchConfigSib1 *pdcchCfgSib1,\
580 SchSib1Cfg *sib1SchCfg, uint16_t pci, uint8_t offsetPointA, uint16_t sib1PduLen)
582 uint8_t coreset0Idx = 0;
583 uint8_t searchSpace0Idx = 0;
584 //uint8_t ssbMuxPattern = 0;
586 uint8_t numSymbols = 0;
589 //uint8_t numSearchSpacePerSlot = 0;
591 uint8_t firstSymbol = 0; /* need to calculate using formula mentioned in 38.213 */
592 uint8_t slotIndex = 0;
593 uint8_t FreqDomainResource[FREQ_DOM_RSRC_SIZE] = {0};
600 pdcch = &(sib1SchCfg->sib1PdcchCfg);
601 bwp = &(sib1SchCfg->bwp);
603 coreset0Idx = pdcchCfgSib1->coresetZeroIndex;
604 searchSpace0Idx = pdcchCfgSib1->searchSpaceZeroIndex;
606 /* derive the sib1 coreset0 params from table 13-1 spec 38.213 */
607 //ssbMuxPattern = coresetIdxTable[coreset0Idx][0];
608 numRbs = coresetIdxTable[coreset0Idx][1];
609 numSymbols = coresetIdxTable[coreset0Idx][2];
610 offset = coresetIdxTable[coreset0Idx][3];
612 /* derive the search space params from table 13-11 spec 38.213 */
613 oValue = searchSpaceIdxTable[searchSpace0Idx][0];
614 //numSearchSpacePerSlot = searchSpaceIdxTable[searchSpace0Idx][1];
615 mValue = searchSpaceIdxTable[searchSpace0Idx][2];
616 firstSymbol = searchSpaceIdxTable[searchSpace0Idx][3];
618 /* calculate the n0, need to add the formulae, as of now the value is 0
619 * Need to add the even and odd values of i during configuration
620 * [(O . 2^u + i . M ) ] mod numSlotsPerSubframe
621 * assuming u = 0, i = 0, numSlotsPerSubframe = 10
622 * Also, from this configuration, coreset0 is only on even subframe */
623 slotIndex = (int)((oValue*pow(2, mu)) + floor(ssbIdx*mValue))%numSlots;
624 sib1SchCfg->n0 = slotIndex;
629 case BANDWIDTH_20MHZ:
631 bwp->freqAlloc.numPrb = TOTAL_PRB_20MHZ_MU0;
634 case BANDWIDTH_100MHZ:
636 bwp->freqAlloc.numPrb = TOTAL_PRB_100MHZ_MU1;
640 DU_LOG("\nERROR --> SCH : Bandwidth %d not supported", bandwidth);
643 bwp->freqAlloc.startPrb = 0;
644 bwp->subcarrierSpacing = 0; /* 15Khz */
645 bwp->cyclicPrefix = 0; /* normal */
647 /* fill the PDCCH PDU */
648 pdcch->coresetCfg.coreSetSize = numRbs;
649 pdcch->coresetCfg.startSymbolIndex = firstSymbol;
650 pdcch->coresetCfg.durationSymbols = numSymbols;
652 /* Fill Bitmap for PRBs in coreset */
653 fillCoresetFeqDomAllocMap(((offsetPointA-offset)/6), (numRbs/6), FreqDomainResource);
654 covertFreqDomRsrcMapToIAPIFormat(FreqDomainResource, pdcch->coresetCfg.freqDomainResource);
656 pdcch->coresetCfg.cceRegMappingType = 1; /* coreset0 is always interleaved */
657 pdcch->coresetCfg.regBundleSize = 6; /* spec-38.211 sec 7.3.2.2 */
658 pdcch->coresetCfg.interleaverSize = 2; /* spec-38.211 sec 7.3.2.2 */
659 pdcch->coresetCfg.coreSetType = 0;
660 pdcch->coresetCfg.shiftIndex = pci;
661 pdcch->coresetCfg.precoderGranularity = 0; /* sameAsRegBundle */
663 pdcch->dci.rnti = SI_RNTI;
664 pdcch->dci.scramblingId = pci;
665 pdcch->dci.scramblingRnti = 0;
666 pdcch->dci.cceIndex = 0;
667 pdcch->dci.aggregLevel = 4;
668 pdcch->dci.beamPdcchInfo.numPrgs = 1;
669 pdcch->dci.beamPdcchInfo.prgSize = 1;
670 pdcch->dci.beamPdcchInfo.digBfInterfaces = 0;
671 pdcch->dci.beamPdcchInfo.prg[0].pmIdx = 0;
672 pdcch->dci.beamPdcchInfo.prg[0].beamIdx[0] = 0;
673 pdcch->dci.txPdcchPower.beta_pdcch_1_0= 0;
674 pdcch->dci.txPdcchPower.powerControlOffsetSS = 0;
675 /* Storing pdschCfg pointer here. Required to access pdsch config while
676 fillig up pdcch pdu */
677 pdsch = &pdcch->dci.pdschCfg;
679 /* fill the PDSCH PDU */
681 pdsch->pduBitmap = 0; /* PTRS and CBG params are excluded */
682 pdsch->rnti = 0xFFFF; /* SI-RNTI */
684 pdsch->numCodewords = 1;
685 for(cwCount = 0; cwCount < pdsch->numCodewords; cwCount++)
687 pdsch->codeword[cwCount].targetCodeRate = 308;
688 pdsch->codeword[cwCount].qamModOrder = 2;
689 pdsch->codeword[cwCount].mcsIndex = DEFAULT_MCS;
690 pdsch->codeword[cwCount].mcsTable = 0; /* notqam256 */
691 pdsch->codeword[cwCount].rvIndex = 0;
692 tbSize = schCalcTbSize(sib1PduLen + TX_PAYLOAD_HDR_LEN);
693 pdsch->codeword[cwCount].tbSize = tbSize;
695 pdsch->dataScramblingId = pci;
696 pdsch->numLayers = 1;
697 pdsch->transmissionScheme = 0;
699 pdsch->dmrs.dlDmrsSymbPos = DL_DMRS_SYMBOL_POS;
700 pdsch->dmrs.dmrsConfigType = 0; /* type-1 */
701 pdsch->dmrs.dlDmrsScramblingId = pci;
702 pdsch->dmrs.scid = 0;
703 pdsch->dmrs.numDmrsCdmGrpsNoData = 1;
704 pdsch->dmrs.dmrsPorts = 0x0001;
705 pdsch->dmrs.mappingType = DMRS_MAP_TYPE_A; /* Type-A */
706 pdsch->dmrs.nrOfDmrsSymbols = NUM_DMRS_SYMBOLS;
707 pdsch->dmrs.dmrsAddPos = DMRS_ADDITIONAL_POS;
709 pdsch->pdschFreqAlloc.resourceAllocType = 1; /* RAT type-1 RIV format */
710 /* the RB numbering starts from coreset0, and PDSCH is always above SSB */
711 pdsch->pdschFreqAlloc.startPrb = offsetPointA + SCH_SSB_NUM_PRB;
712 pdsch->pdschFreqAlloc.numPrb = schCalcNumPrb(tbSize, DEFAULT_MCS, NUM_PDSCH_SYMBOL);
713 pdsch->pdschFreqAlloc.vrbPrbMapping = 0; /* non-interleaved */
714 pdsch->pdschTimeAlloc.rowIndex = 1;
715 /* This is Intel's requirement. PDSCH should start after PDSCH DRMS symbol */
716 pdsch->pdschTimeAlloc.startSymb = 3; /* spec-38.214, Table 5.1.2.1-1 */
717 pdsch->pdschTimeAlloc.numSymb = NUM_PDSCH_SYMBOL;
718 pdsch->beamPdschInfo.numPrgs = 1;
719 pdsch->beamPdschInfo.prgSize = 1;
720 pdsch->beamPdschInfo.digBfInterfaces = 0;
721 pdsch->beamPdschInfo.prg[0].pmIdx = 0;
722 pdsch->beamPdschInfo.prg[0].beamIdx[0] = 0;
723 pdsch->txPdschPower.powerControlOffset = 0;
724 pdsch->txPdschPower.powerControlOffsetSS = 0;
730 * @brief cell config from MAC to SCH.
734 * Function : macSchCellCfgReq
736 * This API is invoked by MAC to send cell config to SCH
738 * @param[in] Pst *pst
739 * @param[in] SchCellCfg *schCellCfg
744 uint8_t SchProcCellCfgReq(Pst *pst, SchCellCfg *schCellCfg)
748 SchCellCfgCfm schCellCfgCfm;
750 Inst inst = pst->dstInst - SCH_INST_START;
751 uint8_t coreset0Idx = 0;
754 uint8_t freqDomainResource[FREQ_DOM_RSRC_SIZE] = {0};
755 SchPdschConfig pdschCfg;
757 schInitCellCb(inst, schCellCfg);
758 cellCb = schCb[inst].cells[inst]; //cells is of MAX_CELLS, why inst
759 cellCb->macInst = pst->srcInst;
761 /* derive the SIB1 config parameters */
762 ret = fillSchSib1Cfg(cellCb->numerology, schCellCfg->dlBandwidth, cellCb->numSlots,
763 &(schCellCfg->pdcchCfgSib1), &(cellCb->sib1SchCfg), schCellCfg->phyCellId,
764 schCellCfg->dlCfgCommon.schFreqInfoDlSib.offsetToPointA, schCellCfg->sib1PduLen);
768 DU_LOG("\nERROR --> SCH : Failed to fill sib1 configuration");
771 memcpy(&cellCb->cellCfg, schCellCfg, sizeof(SchCellCfg));
772 schProcPagingCfg(cellCb);
774 /* Fill coreset frequencyDomainResource bitmap */
775 coreset0Idx = cellCb->cellCfg.dlCfgCommon.schInitialDlBwp.pdcchCommon.commonSearchSpace.coresetId;
776 numRbs = coresetIdxTable[coreset0Idx][1];
777 offset = coresetIdxTable[coreset0Idx][3];
778 fillCoresetFeqDomAllocMap(((cellCb->cellCfg.dlCfgCommon.schFreqInfoDlSib.offsetToPointA - offset)/6), \
779 (numRbs/6), freqDomainResource);
780 covertFreqDomRsrcMapToIAPIFormat(freqDomainResource, \
781 cellCb->cellCfg.dlCfgCommon.schInitialDlBwp.pdcchCommon.commonSearchSpace.freqDomainRsrc);
783 /* Fill K0 - K1 table for common cfg*/
784 BuildK0K1Table(cellCb, &cellCb->k0K1InfoTbl, true, cellCb->cellCfg.dlCfgCommon.schInitialDlBwp.pdschCommon,
785 pdschCfg, DEFAULT_UL_ACK_LIST_COUNT, defaultUlAckTbl);
787 BuildK2InfoTable(cellCb, cellCb->cellCfg.ulCfgCommon.schInitialUlBwp.puschCommon.timeDomRsrcAllocList,\
788 cellCb->cellCfg.ulCfgCommon.schInitialUlBwp.puschCommon.numTimeDomRsrcAlloc, &cellCb->msg3K2InfoTbl, \
791 /*As per Spec 38.211, Sec 6.3.3.2; RootSeq Len(Lra) where Lra=839 or Lra=139,
792 *depending on the PRACH preamble format as given by Tables 6.3.3.1-1 and 6.3.3.1-2.*/
793 if(prachCfgIdxTable[cellCb->cellCfg.ulCfgCommon.schInitialUlBwp.schRachCfg.prachCfgGeneric.prachCfgIdx][0] <= 3)
795 cellCb->cellCfg.ulCfgCommon.schInitialUlBwp.schRachCfg.rootSeqLen = ROOT_SEQ_LEN_1;
799 cellCb->cellCfg.ulCfgCommon.schInitialUlBwp.schRachCfg.rootSeqLen = ROOT_SEQ_LEN_2;
801 /* Initializing global variables */
802 cellCb->actvUeBitMap = 0;
803 cellCb->boIndBitMap = 0;
805 cellCb->schHqCfg.maxDlDataHqTx = SCH_MAX_NUM_DL_HQ_TX;
806 cellCb->schHqCfg.maxMsg4HqTx = SCH_MAX_NUM_MSG4_TX;
807 cellCb->schHqCfg.maxUlDataHqTx = SCH_MAX_NUM_UL_HQ_TX;
808 cellCb->maxMsg3Tx = SCH_MAX_NUM_MSG3_TX;
810 cellCb->schAlgoType = SCH_FCFS;
811 cellCb->api = &schCb[inst].allApis[cellCb->schAlgoType]; /* For FCFS */
812 cellCb->api->SchCellCfgReq(cellCb);
814 /* Fill and send Cell config confirm */
815 memset(&rspPst, 0, sizeof(Pst));
816 FILL_PST_SCH_TO_MAC(rspPst, pst->dstInst);
817 rspPst.event = EVENT_SCH_CELL_CFG_CFM;
819 schCellCfgCfm.cellId = schCellCfg->cellId;
820 schCellCfgCfm.rsp = RSP_OK;
822 ret = MacMessageRouter(&rspPst, (void *)&schCellCfgCfm);
827 /*******************************************************************
829 * @brief Fill and send Cell delete response to MAC
833 * Function : SchSendCellDeleteRspToMac
835 * Functionality: Fill and send Cell delete response to MAC
837 * @params[in] SchCellDelete *ueDelete, Inst inst, SchMacRsp result
838 * @return ROK - success
841 * ****************************************************************/
842 uint8_t SchSendCellDeleteRspToMac(SchCellDeleteReq *ueDelete, Inst inst, SchMacRsp result)
847 SchCellDeleteRsp delRsp;
849 DU_LOG("\nINFO --> SCH : Filling Cell Delete response");
850 memset(&delRsp, 0, sizeof(SchCellDeleteRsp));
851 delRsp.cellId = ueDelete->cellId;
854 /* Filling response post */
855 memset(&rspPst, 0, sizeof(Pst));
856 FILL_PST_SCH_TO_MAC(rspPst, inst);
857 rspPst.event = EVENT_CELL_DELETE_RSP_TO_MAC;
858 ret = MacMessageRouter(&rspPst, (void *)&delRsp);
861 DU_LOG("\nERROR --> SCH : SchSendCellDeleteRspToMac(): failed to send the Cell Delete response");
867 /*******************************************************************
869 * @brief Function for cellCb Deletion
873 * Function : deleteSchCellCb
875 * Functionality: Function for cellCb Deletion
877 * @params[in] SchCellDelete *cellDelete
878 * @return ROK - success
881 * ****************************************************************/
882 void deleteSchCellCb(SchCellCb *cellCb)
884 uint8_t sliceIdx=0, slotIdx=0, plmnIdx = 0;
885 CmLListCp *list=NULL;
886 CmLList *node=NULL, *next=NULL;
887 SchPageInfo *tempNode = NULLP;
889 if(cellCb->schDlSlotInfo)
891 for(slotIdx=0; slotIdx<cellCb->numSlots; slotIdx++)
893 list = &cellCb->schDlSlotInfo[slotIdx]->prbAlloc.freePrbBlockList;
898 SCH_FREE(node->node, sizeof(FreePrbBlock));
899 deleteNodeFromLList(list, node);
902 SCH_FREE(cellCb->schDlSlotInfo[slotIdx], sizeof(SchDlSlotInfo));
904 SCH_FREE(cellCb->schDlSlotInfo, cellCb->numSlots *sizeof(SchDlSlotInfo*));
907 if(cellCb->schUlSlotInfo)
909 for(slotIdx=0; slotIdx<cellCb->numSlots; slotIdx++)
911 list = &cellCb->schUlSlotInfo[slotIdx]->prbAlloc.freePrbBlockList;
916 SCH_FREE(node->node, sizeof(FreePrbBlock));
917 deleteNodeFromLList(list, node);
920 SCH_FREE(cellCb->schUlSlotInfo[slotIdx], sizeof(SchUlSlotInfo));
922 SCH_FREE(cellCb->schUlSlotInfo, cellCb->numSlots * sizeof(SchUlSlotInfo*));
925 for(plmnIdx = 0; plmnIdx < MAX_PLMN; plmnIdx++)
927 if(cellCb->cellCfg.plmnInfoList[plmnIdx].snssai)
929 for(sliceIdx=0; sliceIdx<cellCb->cellCfg.plmnInfoList[plmnIdx].numSliceSupport; sliceIdx++)
931 SCH_FREE(cellCb->cellCfg.plmnInfoList[plmnIdx].snssai[sliceIdx], sizeof(Snssai));
933 SCH_FREE(cellCb->cellCfg.plmnInfoList[plmnIdx].snssai, cellCb->cellCfg.plmnInfoList[plmnIdx].numSliceSupport*sizeof(Snssai*));
937 for(uint16_t idx =0; idx<MAX_SFN; idx++)
939 list = &cellCb->pageCb.pageIndInfoRecord[idx];
946 tempNode = (SchPageInfo*)(node->node);
947 SCH_FREE(tempNode->pagePdu, tempNode->msgLen);
948 SCH_FREE(node->node, sizeof(SchPageInfo));
950 deleteNodeFromLList(list, node);
955 cellCb->api->SchCellDeleteReq(cellCb);
957 memset(cellCb, 0, sizeof(SchCellCb));
960 /*******************************************************************
962 * @brief Function for cell Delete request from MAC to SCH
966 * Function : SchProcCellDeleteReq
968 * Functionality: Function for cell Delete request from MAC to SCH
970 * @params[in] Pst *pst, SchCellDelete *cellDelete
971 * @return ROK - success
974 * ****************************************************************/
975 uint8_t SchProcCellDeleteReq(Pst *pst, SchCellDeleteReq *cellDelete)
977 uint8_t cellIdx=0, ret = RFAILED;
978 Inst inst = pst->dstInst - SCH_INST_START;
979 SchMacRsp result= RSP_OK;
983 DU_LOG("\nERROR --> SCH : SchProcCellDeleteReq(): Ue Delete request failed");
987 GET_CELL_IDX(cellDelete->cellId, cellIdx);
988 if(schCb[inst].cells[cellIdx] == NULLP)
990 DU_LOG("\nERROR --> SCH : SchProcCellDeleteReq(): cell Id[%d] is not available", cellDelete->cellId);
995 if(schCb[inst].cells[cellIdx]->cellId == cellDelete->cellId)
997 deleteSchCellCb(schCb[inst].cells[cellIdx]);
1000 SCH_FREE(schCb[inst].cells[cellIdx], sizeof(SchCellCb));
1001 DU_LOG("\nINFO --> SCH : Sending Cell Delete response to MAC");
1005 DU_LOG("\nERROR --> SCH : SchProcCellDeleteReq(): cell Id[%d] is not available",cellDelete->cellId);
1010 if(SchSendCellDeleteRspToMac(cellDelete, inst, result)!=ROK)
1012 DU_LOG("\nERROR --> SCH : SchProcCellDeleteReq(): failed to send Cell Delete response");
1019 /*******************************************************************
1021 * @brief Processes DL RLC BO info from MAC
1025 * Function : SchProcDlRlcBoInfo
1028 * Processes DL RLC BO info from MAC
1031 * @return ROK - success
1034 * ****************************************************************/
1035 uint8_t SchProcDlRlcBoInfo(Pst *pst, DlRlcBoInfo *dlBoInfo)
1039 bool isLcIdValid = false;
1040 SchUeCb *ueCb = NULLP;
1041 SchCellCb *cell = NULLP;
1042 Inst inst = pst->dstInst-SCH_INST_START;
1044 DU_LOG("\nDEBUG --> SCH : Received RLC BO Status indication LCId [%d] BO [%d]", dlBoInfo->lcId, dlBoInfo->dataVolume);
1045 cell = schCb[inst].cells[inst];
1049 DU_LOG("\nERROR --> SCH : SchProcDlRlcBoInfo(): Cell does not exists");
1053 GET_UE_ID(dlBoInfo->crnti, ueId);
1054 ueCb = &cell->ueCb[ueId-1];
1055 if(ueCb->ueCfg.dataTransmissionAction == STOP_DATA_TRANSMISSION)
1057 DU_LOG("INFO --> SCH : DL Data transmission not allowed for UE %d", ueCb->ueCfg.ueId);
1061 lcId = dlBoInfo->lcId;
1062 CHECK_LCID(lcId, isLcIdValid);
1063 if(isLcIdValid == FALSE)
1065 DU_LOG("ERROR --> SCH: LCID:%d is not valid", lcId);
1069 /*Expected when theres a case of Retransmission Failure or Resetablishment
1070 *By Zero BO, the RLC is informing that previous data can be cleared out
1071 *Thus clearing out the LC from the Lc priority list*/
1072 if(dlBoInfo->dataVolume == 0)
1074 /* TODO : Check the LC is Dedicated or default and accordingly LCList
1079 if(lcId == SRB0_LCID)
1081 cell->raCb[ueId -1].msg4recvd = true;
1082 cell->raCb[ueId -1].dlMsgPduLen = dlBoInfo->dataVolume;
1086 /* TODO : These part of changes will be corrected during DL scheduling as
1087 * per K0 - K1 -K2 */
1088 SET_ONE_BIT(ueId, cell->boIndBitMap);
1089 if(ueCb->dlInfo.dlLcCtxt[lcId].lcId == lcId)
1091 ueCb->dlInfo.dlLcCtxt[lcId].bo = dlBoInfo->dataVolume;
1095 DU_LOG("ERROR --> SCH: LCID:%d is not configured in SCH Cb",lcId);
1099 /* Adding UE Id to list of pending UEs to be scheduled */
1100 cell->api->SchDlRlcBoInfo(cell, ueId);
1104 /*******************************************************************
1106 * @brief Processes BSR indiation from MAC
1110 * Function : SchProcBsr
1113 * Processes DL BSR from MAC
1115 * @params[in] Pst pst
1116 * UlBufferStatusRptInd bsrInd
1117 * @return ROK - success
1120 * ****************************************************************/
1121 uint8_t SchProcBsr(Pst *pst, UlBufferStatusRptInd *bsrInd)
1123 Inst schInst = pst->dstInst-SCH_INST_START;
1124 SchCellCb *cellCb = NULLP;
1125 SchUeCb *ueCb = NULLP;
1128 DU_LOG("\nDEBUG --> SCH : Received BSR");
1131 DU_LOG("\nERROR --> SCH : BSR Ind is empty");
1134 cellCb = schCb[schInst].cells[schInst];
1137 DU_LOG("\nERROR --> SCH : CellCb is empty");
1140 ueCb = schGetUeCb(cellCb, bsrInd->crnti);
1144 DU_LOG("\nERROR --> SCH : UeCB is empty");
1148 if(ueCb->ueCfg.dataTransmissionAction == STOP_DATA_TRANSMISSION)
1150 DU_LOG("\nINFO --> SCH: UL Data transmission not allowed for UE %d", ueCb->ueCfg.ueId);
1154 ueCb->bsrRcvd = true;
1155 /* store dataVolume per lcg in uecb */
1156 for(lcgIdx = 0; lcgIdx < bsrInd->numLcg; lcgIdx++)
1158 ueCb->bsrInfo[bsrInd->dataVolInfo[lcgIdx].lcgId].priority = 1; //TODO: determining LCG priority?
1159 ueCb->bsrInfo[bsrInd->dataVolInfo[lcgIdx].lcgId].dataVol = bsrInd->dataVolInfo[lcgIdx].dataVol;
1162 /* Adding UE Id to list of pending UEs to be scheduled */
1163 cellCb->api->SchBsr(cellCb, ueCb->ueId);
1167 /*******************************************************************
1169 * @brief Processes SR UCI indication from MAC
1173 * Function : SchProcSrUciInd
1176 * Processes SR UCI indication from MAC
1178 * @params[in] Post structure
1180 * @return ROK - success
1183 * ****************************************************************/
1184 uint8_t SchProcSrUciInd(Pst *pst, SrUciIndInfo *uciInd)
1186 Inst inst = pst->dstInst-SCH_INST_START;
1189 SchCellCb *cellCb = schCb[inst].cells[inst];
1191 DU_LOG("\nDEBUG --> SCH : Received SR");
1193 ueCb = schGetUeCb(cellCb, uciInd->crnti);
1195 if(ueCb->state == SCH_UE_STATE_INACTIVE)
1197 DU_LOG("\nERROR --> SCH : Crnti %d is inactive", uciInd->crnti);
1200 if(ueCb->ueCfg.dataTransmissionAction == STOP_DATA_TRANSMISSION)
1202 DU_LOG("\nINFO --> SCH: UL Data transmission not allowed for UE %d", ueCb->ueCfg.ueId);
1205 if(uciInd->numSrBits)
1207 ueCb->srRcvd = true;
1208 /* Adding UE Id to list of pending UEs to be scheduled */
1209 cellCb->api->SchSrUciInd(cellCb, ueCb->ueId);
1214 /*******************************************************************
1216 * @brief Processes DL HARQ indication from MAC
1220 * Function : SchProcDlHarqInd
1223 * Processes DL HARQ indication from MAC
1225 * @params[in] Post structure
1226 * DL HARQ Indication
1227 * @return ROK - success
1230 * ****************************************************************/
1231 uint8_t SchProcDlHarqInd(Pst *pst, DlHarqInd *dlHarqInd)
1233 Inst inst = pst->dstInst-SCH_INST_START;
1235 SchCellCb *cellCb = schCb[inst].cells[inst];
1237 DU_LOG("\nDEBUG --> SCH : Received HARQ");
1239 ueCb = schGetUeCb(cellCb, dlHarqInd->crnti);
1241 if(ueCb->state == SCH_UE_STATE_INACTIVE)
1243 DU_LOG("\nERROR --> SCH : Crnti %d is inactive", dlHarqInd->crnti);
1247 schUpdateHarqFdbk(ueCb, dlHarqInd->numHarq, dlHarqInd->harqPayload, &dlHarqInd->slotInd);
1252 /*******************************************************************
1254 * @brief Allocates requested PRBs for DL
1258 * Function : allocatePrbDl
1261 * Allocates requested PRBs in DL
1262 * Keeps track of allocated PRB (using bitmap) and remaining PRBs
1264 * @params[in] prbAlloc table
1270 * @return ROK - success
1273 * ****************************************************************/
1274 uint8_t allocatePrbDl(SchCellCb *cell, SlotTimingInfo slotTime, \
1275 uint8_t startSymbol, uint8_t symbolLength, uint16_t *startPrb, uint16_t numPrb)
1278 uint16_t broadcastPrbStart=0, broadcastPrbEnd=0;
1279 FreePrbBlock *freePrbBlock = NULLP;
1280 CmLList *freePrbNode = NULLP;
1281 PduTxOccsaion ssbOccasion=0, sib1Occasion=0;
1282 SchDlSlotInfo *schDlSlotInfo = cell->schDlSlotInfo[slotTime.slot];
1283 SchPrbAlloc *prbAlloc = &schDlSlotInfo->prbAlloc;
1285 /* If startPrb is set to MAX_NUM_RB, it means startPrb is not known currently.
1286 * Search for an appropriate location in PRB grid and allocate requested resources */
1287 if(*startPrb == MAX_NUM_RB)
1289 /* Check if SSB/SIB1 is also scheduled in this slot */
1290 ssbOccasion = schCheckSsbOcc(cell, slotTime);
1291 sib1Occasion = schCheckSib1Occ(cell, slotTime);
1293 if(ssbOccasion && sib1Occasion)
1295 broadcastPrbStart = cell->cellCfg.dlCfgCommon.schFreqInfoDlSib.offsetToPointA;
1296 broadcastPrbEnd = broadcastPrbStart + SCH_SSB_NUM_PRB + cell->sib1SchCfg.sib1PdcchCfg.dci.pdschCfg.pdschFreqAlloc.numPrb -1;
1298 else if(ssbOccasion)
1300 broadcastPrbStart = cell->cellCfg.dlCfgCommon.schFreqInfoDlSib.offsetToPointA;
1301 broadcastPrbEnd = broadcastPrbStart + SCH_SSB_NUM_PRB -1;
1303 else if(sib1Occasion)
1305 broadcastPrbStart = cell->sib1SchCfg.sib1PdcchCfg.dci.pdschCfg.pdschFreqAlloc.startPrb;
1306 broadcastPrbEnd = broadcastPrbStart + cell->sib1SchCfg.sib1PdcchCfg.dci.pdschCfg.pdschFreqAlloc.numPrb -1;
1309 /* Iterate through all free PRB blocks */
1310 freePrbNode = prbAlloc->freePrbBlockList.first;
1313 freePrbBlock = (FreePrbBlock *)freePrbNode->node;
1315 /* If broadcast message is scheduled in this slot, then check if its PRBs belong to the current free block.
1316 * Since SSB/SIB1 PRB location is fixed, these PRBs cannot be allocated to other message in same slot */
1317 if((ssbOccasion || sib1Occasion) &&
1318 ((broadcastPrbStart >= freePrbBlock->startPrb) && (broadcastPrbStart <= freePrbBlock->endPrb)) && \
1319 ((broadcastPrbEnd >= freePrbBlock->startPrb) && (broadcastPrbEnd <= freePrbBlock->endPrb)))
1321 /* Implmentation is done such that highest-numbered free-RB is allocated first */
1322 if((freePrbBlock->endPrb > broadcastPrbEnd) && ((freePrbBlock->endPrb - broadcastPrbEnd) >= numPrb))
1324 /* If sufficient free PRBs are available above bradcast message then,
1325 * endPrb = freePrbBlock->endPrb
1326 * startPrb = endPrb - numPrb +1;
1328 *startPrb = freePrbBlock->endPrb - numPrb +1;
1331 else if((broadcastPrbStart > freePrbBlock->startPrb) && ((broadcastPrbStart - freePrbBlock->startPrb) >= numPrb))
1333 /* If free PRBs are available below broadcast message then,
1334 * endPrb = broadcastPrbStart - 1
1335 * startPrb = endPrb - numPrb +1
1337 *startPrb = broadcastPrbStart - numPrb;
1342 freePrbNode = freePrbNode->next;
1348 /* Check if requested number of blocks can be allocated from the current block */
1349 if (freePrbBlock->numFreePrb < numPrb)
1351 freePrbNode = freePrbNode->next;
1354 *startPrb = freePrbBlock->endPrb - numPrb +1;
1359 /* If no free block can be used to allocated request number of RBs */
1360 if(*startPrb == MAX_NUM_RB)
1364 /* If startPrb is known already, check if requested PRBs are available for allocation */
1367 freePrbNode = isPrbAvailable(&prbAlloc->freePrbBlockList, *startPrb, numPrb);
1370 DU_LOG("\nERROR --> SCH: Requested DL PRB unavailable");
1375 /* Update bitmap to allocate PRBs */
1376 for(symbol=startSymbol; symbol < (startSymbol+symbolLength); symbol++)
1378 if(fillPrbBitmap(prbAlloc->prbBitMap[symbol], *startPrb, numPrb) != ROK)
1380 DU_LOG("\nERROR --> SCH: fillPrbBitmap() failed for symbol [%d] in DL", symbol);
1385 /* Update statistics of PRB usage if stats calculation is enabled */
1386 if(schCb[cell->instIdx].statistics.dlTotalPrbUsage)
1387 prbAlloc->numPrbAlloc += numPrb;
1389 /* Update the remaining number for free PRBs */
1390 removeAllocatedPrbFromFreePrbList(&prbAlloc->freePrbBlockList, freePrbNode, *startPrb, numPrb);
1395 /*******************************************************************
1397 * @brief Allocates requested PRBs for UL
1401 * Function : allocatePrbUl
1404 * Allocates requested PRBs in UL
1405 * Keeps track of allocated PRB (using bitmap) and remaining PRBs
1407 * @params[in] prbAlloc table
1413 * @return ROK - success
1416 * ****************************************************************/
1417 uint8_t allocatePrbUl(SchCellCb *cell, SlotTimingInfo slotTime, \
1418 uint8_t startSymbol, uint8_t symbolLength, uint16_t *startPrb, uint16_t numPrb)
1421 uint16_t prachStartPrb, prachNumPrb, prachEndPrb;
1422 bool isPrachOccasion;
1423 FreePrbBlock *freePrbBlock = NULLP;
1424 CmLList *freePrbNode = NULLP;
1425 SchPrbAlloc *prbAlloc = NULLP;
1429 DU_LOG("\nERROR --> SCH : allocatePrbUl(): Received cellCb is null");
1433 prbAlloc = &cell->schUlSlotInfo[slotTime.slot]->prbAlloc;
1434 /* If startPrb is set to MAX_NUM_RB, it means startPrb is not known currently.
1435 * Search for an appropriate location in PRB grid and allocate requested resources */
1436 if(*startPrb == MAX_NUM_RB)
1438 /* Check if PRACH is also scheduled in this slot */
1439 isPrachOccasion = schCheckPrachOcc(cell, slotTime);
1442 prachStartPrb = cell->cellCfg.ulCfgCommon.schInitialUlBwp.schRachCfg.prachCfgGeneric.msg1FreqStart;
1443 prachNumPrb = schCalcPrachNumRb(cell);
1444 prachEndPrb = prachStartPrb + prachNumPrb -1;
1447 /* Iterate through all free PRB blocks */
1448 freePrbNode = prbAlloc->freePrbBlockList.first;
1451 freePrbBlock = (FreePrbBlock *)freePrbNode->node;
1453 /* If PRACH is scheduled in this slot, then check if its PRBs belong to the current free block.
1454 * PRBs required for PRACH cannot be allocated to any other message */
1455 if((isPrachOccasion) &&
1456 ((prachStartPrb >= freePrbBlock->startPrb) && (prachStartPrb <= freePrbBlock->endPrb)) &&
1457 ((prachEndPrb >= freePrbBlock->startPrb) && (prachEndPrb <= freePrbBlock->endPrb)))
1459 /* Implmentation is done such that highest-numbered free-RB is allocated first */
1460 if((freePrbBlock->endPrb > prachEndPrb) && ((freePrbBlock->endPrb - prachEndPrb) >= numPrb))
1462 /* If sufficient free PRBs are available above PRACH message then,
1463 * endPrb = freePrbBlock->endPrb
1464 * startPrb = endPrb - numPrb +1;
1466 *startPrb = freePrbBlock->endPrb - numPrb +1;
1469 else if((prachStartPrb > freePrbBlock->startPrb) && ((prachStartPrb - freePrbBlock->startPrb) >= numPrb))
1471 /* If free PRBs are available below PRACH message then,
1472 * endPrb = prachStartPrb - 1
1473 * startPrb = endPrb - numPrb +1
1475 *startPrb = prachStartPrb - numPrb;
1480 freePrbNode = freePrbNode->next;
1486 /* Check if requested number of PRBs can be allocated from currect block */
1487 if(freePrbBlock->numFreePrb < numPrb)
1489 freePrbNode = freePrbNode->next;
1492 *startPrb = freePrbBlock->endPrb - numPrb +1;
1497 /* If no free block can be used to allocated requested number of RBs */
1498 if(*startPrb == MAX_NUM_RB)
1503 /* If startPrb is known already, check if requested PRBs are available for allocation */
1504 freePrbNode = isPrbAvailable(&prbAlloc->freePrbBlockList, *startPrb, numPrb);
1507 DU_LOG("\nERROR --> SCH: Requested UL PRB unavailable");
1512 /* Update bitmap to allocate PRBs */
1513 for(symbol=startSymbol; symbol < (startSymbol+symbolLength); symbol++)
1515 if(fillPrbBitmap(prbAlloc->prbBitMap[symbol], *startPrb, numPrb) != ROK)
1517 DU_LOG("\nERROR --> SCH: fillPrbBitmap() failed for symbol [%d] in UL", symbol);
1522 /* Update statistics of PRB usage if stats calculation is enabled */
1523 if(schCb[cell->instIdx].statistics.ulTotalPrbUsage)
1524 prbAlloc->numPrbAlloc += numPrb;
1526 /* Update the remaining number for free PRBs */
1527 removeAllocatedPrbFromFreePrbList(&prbAlloc->freePrbBlockList, freePrbNode, *startPrb, numPrb);
1532 /*******************************************************************************
1534 * @brief Try to find Best Free Block with Max Num PRB
1538 * Function : searchLargestFreeBlock
1541 * Finds the FreeBlock with MaxNum of FREE PRB considering SSB/SIB1 ocassions.
1543 * @params[in] I/P > prbAlloc table (FreeBlock list)
1544 * I/P > Slot timing Info
1546 * I/P > Direction (UL/DL)
1549 * @return Max Number of Free PRB
1550 * If 0, then no Suitable Free Block
1552 * ********************************************************************************/
1554 uint16_t searchLargestFreeBlock(SchCellCb *cell, SlotTimingInfo slotTime,uint16_t *startPrb, Direction dir)
1556 uint16_t reservedPrbStart=0, reservedPrbEnd=0, maxFreePRB = 0;
1557 FreePrbBlock *freePrbBlock = NULLP;
1558 CmLList *freePrbNode = NULLP;
1559 SchPrbAlloc *prbAlloc = NULLP;
1560 bool checkOccasion = FALSE;
1562 *startPrb = 0; /*Initialize the StartPRB to zero*/
1564 /*Based on Direction, Reserved Messsages will differi.e.
1565 * DL >> SSB and SIB1 ocassions wheres for UL, PRACH ocassions to be checked
1566 * and reserved before allocation for dedicated DL/UL msg*/
1569 SchDlSlotInfo *schDlSlotInfo = cell->schDlSlotInfo[slotTime.slot];
1570 PduTxOccsaion ssbOccasion=0, sib1Occasion=0;
1572 prbAlloc = &schDlSlotInfo->prbAlloc;
1574 ssbOccasion = schCheckSsbOcc(cell, slotTime);
1575 sib1Occasion = schCheckSib1Occ(cell, slotTime);
1577 checkOccasion = TRUE;
1578 if(ssbOccasion && sib1Occasion)
1580 reservedPrbStart = cell->cellCfg.dlCfgCommon.schFreqInfoDlSib.offsetToPointA;
1581 reservedPrbEnd = reservedPrbStart + SCH_SSB_NUM_PRB + \
1582 cell->sib1SchCfg.sib1PdcchCfg.dci.pdschCfg.pdschFreqAlloc.numPrb -1;
1584 else if(ssbOccasion)
1586 reservedPrbStart = cell->cellCfg.dlCfgCommon.schFreqInfoDlSib.offsetToPointA;
1587 reservedPrbEnd = reservedPrbStart + SCH_SSB_NUM_PRB -1;
1589 else if(sib1Occasion)
1591 reservedPrbStart = cell->sib1SchCfg.sib1PdcchCfg.dci.pdschCfg.pdschFreqAlloc.startPrb;
1592 reservedPrbEnd = reservedPrbStart + cell->sib1SchCfg.sib1PdcchCfg.dci.pdschCfg.pdschFreqAlloc.numPrb -1;
1596 checkOccasion = FALSE;
1599 else if(dir == DIR_UL)
1601 prbAlloc = &cell->schUlSlotInfo[slotTime.slot]->prbAlloc;
1603 /* Check if PRACH is also scheduled in this slot */
1604 checkOccasion = schCheckPrachOcc(cell, slotTime);
1607 reservedPrbStart = cell->cellCfg.ulCfgCommon.schInitialUlBwp.schRachCfg.prachCfgGeneric.msg1FreqStart;
1608 reservedPrbEnd = reservedPrbStart + (schCalcPrachNumRb(cell)) -1;
1613 DU_LOG("\nERROR --> SCH: Invalid Direction!");
1614 return (maxFreePRB);
1617 freePrbNode = prbAlloc->freePrbBlockList.first;
1620 freePrbBlock = (FreePrbBlock *)freePrbNode->node;
1622 /*For block with same numFreeBlocks, choose the one with HighestPRB range
1623 *Since FreeBLockList are arranged in Descending order of PRB range thus Skipping this block*/
1624 if(maxFreePRB >= freePrbBlock->numFreePrb)
1627 freePrbNode = freePrbNode->next;
1631 /* If Broadcast/Prach message is scheduled in this slot, then check if its PRBs belong to the current free block.
1632 * Since SSB/SIB1 PRB location is fixed, these PRBs cannot be allocated to other message in same slot */
1634 ((reservedPrbStart >= freePrbBlock->startPrb) && (reservedPrbStart <= freePrbBlock->endPrb)) && \
1635 ((reservedPrbEnd >= freePrbBlock->startPrb) && (reservedPrbEnd <= freePrbBlock->endPrb)))
1638 /* Implmentation is done such that highest-numbered free-RB is Checked first
1639 and freePRB in this block is greater than Max till now */
1640 if((freePrbBlock->endPrb > reservedPrbEnd) && ((freePrbBlock->endPrb - reservedPrbEnd) > maxFreePRB))
1642 /* If sufficient free PRBs are available above reserved message*/
1643 *startPrb = reservedPrbEnd + 1;
1644 maxFreePRB = (freePrbBlock->endPrb - reservedPrbEnd);
1646 /*Also check the other freeBlock (i.e. Above the reserved message) for MAX FREE PRB*/
1647 if((reservedPrbStart > freePrbBlock->startPrb) && ((reservedPrbStart - freePrbBlock->startPrb) > maxFreePRB))
1649 /* If free PRBs are available below reserved message*/
1650 *startPrb = freePrbBlock->startPrb;
1651 maxFreePRB = (reservedPrbStart - freePrbBlock->startPrb);
1656 if(maxFreePRB < freePrbBlock->numFreePrb)
1658 *startPrb = freePrbBlock->startPrb;
1659 maxFreePRB = freePrbBlock->numFreePrb;
1663 freePrbNode = freePrbNode->next;
1668 /*******************************************************************************
1670 * @brief This function is used to send Slice Cfg rsp to MAC
1674 * Function : SchSendSliceCfgRspToMac
1677 * function is used to send Slice Cfg rsp to MAC
1679 * @params[in] Pst *pst, SchSliceCfgRsp sliceCfgRsp
1683 * ********************************************************************************/
1684 void SchSendSliceCfgRspToMac(Inst inst, SchSliceCfgRsp sliceCfgRsp)
1688 memset(&rspPst, 0, sizeof(Pst));
1689 FILL_PST_SCH_TO_MAC(rspPst, inst);
1690 rspPst.event = EVENT_SLICE_CFG_RSP_TO_MAC;
1692 MacMessageRouter(&rspPst, (void *)&sliceCfgRsp);
1696 /*******************************************************************************
1698 * @brief This function is used to store or modify the slice configuration Sch DB
1702 * Function : addOrModifySliceCfgInSchDb
1705 * function is used to store or modify the slice configuration Sch DB
1707 * @params[in] SchSliceCfg *storeSliceCfg, SchSliceCfgReq *cfgReq,
1708 * SchSliceCfgRsp cfgRsp, uint8_t count
1714 * ********************************************************************************/
1715 uint8_t addSliceCfgInSchDb(CmLListCp *sliceCfgInDb, SchRrmPolicyOfSlice *cfgReq)
1717 SchRrmPolicyOfSlice *sliceToStore;
1719 SCH_ALLOC(sliceToStore, sizeof(SchRrmPolicyOfSlice));
1722 memcpy(&sliceToStore->snssai, &cfgReq->snssai, sizeof(Snssai));
1723 memcpy(&sliceToStore->rrmPolicyRatioInfo, &cfgReq->rrmPolicyRatioInfo, sizeof(SchRrmPolicyRatio));
1724 addNodeToLList(sliceCfgInDb, sliceToStore, NULL);
1728 DU_LOG("\nERROR --> SCH : Memory allocation failed in addOrModifySliceCfgInSchDb");
1734 /*******************************************************************************
1736 * @brief fill slice configuration response
1740 * Function : fillSliceCfgRsp
1743 * fill slice configuration response
1745 * @params[in] SchCellCb, SchSliceCfgReq, SchSliceCfgRsp,uint8_t count
1751 * ********************************************************************************/
1752 uint8_t fillSliceCfgRsp(Inst inst, CmLListCp *storedSliceCfg, SchCellCb *cellCb, SchSliceCfgReq *schSliceCfgReq)
1754 SchMacRsp sliceFound;
1755 uint8_t cfgIdx = 0, sliceIdx = 0, plmnIdx = 0, ret =ROK;
1756 SchSliceCfgRsp schSliceCfgRsp;
1758 for(cfgIdx = 0; cfgIdx<schSliceCfgReq->numOfConfiguredSlice; cfgIdx++)
1760 sliceFound = RSP_NOK;
1761 /* Here comparing the slice cfg request with the slice stored in cellCfg */
1762 for(plmnIdx = 0; plmnIdx < MAX_PLMN; plmnIdx++)
1764 for(sliceIdx = 0; sliceIdx<cellCb->cellCfg.plmnInfoList[plmnIdx].numSliceSupport; sliceIdx++)
1766 /* If we find the SliceCfgReq's SNSSAI in CellCb's SNSSAI DB, we mark this slice as configured and add it to Sch's DB. */
1767 if(!memcmp(&schSliceCfgReq->listOfSlices[cfgIdx]->snssai, cellCb->cellCfg.plmnInfoList[plmnIdx].snssai[sliceIdx], sizeof(Snssai)))
1769 if(addSliceCfgInSchDb(storedSliceCfg, schSliceCfgReq->listOfSlices[cfgIdx]) == ROK)
1771 sliceFound = RSP_OK;
1772 schSliceCfgRsp.cause = SUCCESSFUL;
1776 DU_LOG("\nERROR --> SCH : Failed to store slice configuration in SchDb");
1777 schSliceCfgRsp.cause = RESOURCE_UNAVAILABLE;
1786 if((sliceFound == RSP_NOK) && (schSliceCfgRsp.cause != RESOURCE_UNAVAILABLE))
1787 schSliceCfgRsp.cause = SLICE_NOT_FOUND;
1789 schSliceCfgRsp.snssai = schSliceCfgReq->listOfSlices[cfgIdx]->snssai;
1790 schSliceCfgRsp.rsp = sliceFound;
1791 SchSendSliceCfgRspToMac(inst, schSliceCfgRsp);
1796 /*******************************************************************************
1798 * @brief This function is used to free the slice cfg and re cfg request pointer
1802 * Function : freeSchSliceCfgReq
1805 * function is used to free the slice cfg and re cfg request pointer
1807 * @params[in] Pst *pst, SchSliceCfgReq *schSliceCfgReq
1812 * ********************************************************************************/
1813 void freeSchSliceCfgReq(SchSliceCfgReq *sliceCfgReq)
1819 if(sliceCfgReq->numOfConfiguredSlice)
1821 for(cfgIdx = 0; cfgIdx<sliceCfgReq->numOfConfiguredSlice; cfgIdx++)
1823 if(sliceCfgReq->listOfSlices[cfgIdx])
1825 SCH_FREE(sliceCfgReq->listOfSlices[cfgIdx], sizeof(SchRrmPolicyOfSlice));
1828 SCH_FREE(sliceCfgReq->listOfSlices, sliceCfgReq->numOfConfiguredSlice * sizeof(SchRrmPolicyOfSlice*));
1830 SCH_FREE(sliceCfgReq, sizeof(SchSliceCfgReq));
1833 /*******************************************************************************
1835 * @brief This function is used to store the slice configuration Sch DB
1839 * Function : SchProcSliceCfgReq
1842 * function is used to store the slice configuration Sch DB
1844 * @params[in] Pst *pst, SchSliceCfgReq *schSliceCfgReq
1850 * ********************************************************************************/
1851 uint8_t SchProcSliceCfgReq(Pst *pst, SchSliceCfgReq *schSliceCfgReq)
1854 Inst inst = pst->dstInst - SCH_INST_START;
1856 DU_LOG("\nINFO --> SCH : Received Slice Cfg request from MAC");
1859 if(schSliceCfgReq->listOfSlices)
1861 /* filling the slice configuration response of each slice */
1862 if(fillSliceCfgRsp(inst, &schCb[inst].sliceCfg, schCb[inst].cells[0], schSliceCfgReq) != ROK)
1864 DU_LOG("\nERROR --> SCH : Failed to fill the slice cfg rsp");
1867 freeSchSliceCfgReq(schSliceCfgReq);
1872 DU_LOG("\nERROR --> SCH : Received SchSliceCfgReq is NULL");
1878 /*******************************************************************************
1880 * @brief This function is used to send Slice re Cfg rsp to MAC
1884 * Function : SchSendSliceRecfgRspToMac
1887 * function is used to send Slice re Cfg rsp to MAC
1889 * @params[in] Pst *pst, SchSliceRecfgRsp schSliceRecfgRsp
1893 * ********************************************************************************/
1894 void SchSendSliceRecfgRspToMac(Inst inst, SchSliceRecfgRsp schSliceRecfgRsp)
1898 memset(&rspPst, 0, sizeof(Pst));
1899 FILL_PST_SCH_TO_MAC(rspPst, inst);
1900 rspPst.event = EVENT_SLICE_RECFG_RSP_TO_MAC;
1902 MacMessageRouter(&rspPst, (void *)&schSliceRecfgRsp);
1905 /*******************************************************************************
1907 * @brief fill slice configuration response
1911 * Function : fillSliceRecfgRsp
1913 * Functionality: fill slice reconfiguration response
1915 * @params[in] SchCellCb, SchSliceCfgReq, SchSliceCfgRsp,uint8_t count
1921 * ********************************************************************************/
1923 uint8_t fillSliceRecfgRsp(Inst inst, CmLListCp *storedSliceCfg, SchSliceRecfgReq *schSliceRecfgReq)
1925 SchMacRsp sliceFound;
1927 SchRrmPolicyOfSlice *rrmPolicyOfSlices;
1928 SchSliceRecfgRsp schSliceRecfgRsp;
1930 for(cfgIdx = 0; cfgIdx<schSliceRecfgReq->numOfConfiguredSlice; cfgIdx++)
1932 sliceFound = RSP_NOK;
1933 /* Here comparing the slice recfg request with the StoredSliceCfg */
1934 CmLList *sliceCfg = storedSliceCfg->first;
1938 rrmPolicyOfSlices = (SchRrmPolicyOfSlice*)sliceCfg->node;
1940 if(rrmPolicyOfSlices && (memcmp(&schSliceRecfgReq->listOfSlices[cfgIdx]->snssai, &(rrmPolicyOfSlices->snssai), sizeof(Snssai)) == 0))
1942 memcpy(&rrmPolicyOfSlices->rrmPolicyRatioInfo, &schSliceRecfgReq->listOfSlices[cfgIdx]->rrmPolicyRatioInfo, sizeof(SchRrmPolicyRatio));
1943 sliceFound = RSP_OK;
1946 sliceCfg = sliceCfg->next;
1949 schSliceRecfgRsp.snssai = schSliceRecfgReq->listOfSlices[cfgIdx]->snssai;
1950 schSliceRecfgRsp.rsp = sliceFound;
1951 if(schSliceRecfgRsp.rsp == RSP_OK)
1952 schSliceRecfgRsp.cause = SUCCESSFUL;
1954 schSliceRecfgRsp.cause = SLICE_NOT_FOUND;
1955 SchSendSliceRecfgRspToMac(inst, schSliceRecfgRsp);
1959 /*******************************************************************************
1961 * @brief This function is used to store the slice reconfiguration Sch DB
1965 * Function : SchProcSliceRecfgReq
1968 * function is used to store the slice re configuration Sch DB
1970 * @params[in] Pst *pst, SchSliceRecfgReq *schSliceRecfgReq
1976 * ********************************************************************************/
1977 uint8_t SchProcSliceRecfgReq(Pst *pst, SchSliceRecfgReq *schSliceRecfgReq)
1980 Inst inst = pst->dstInst - SCH_INST_START;
1982 DU_LOG("\nINFO --> SCH : Received Slice ReCfg request from MAC");
1983 if(schSliceRecfgReq)
1985 if(schSliceRecfgReq->listOfSlices)
1987 /* filling the slice configuration response of each slice */
1988 if(fillSliceRecfgRsp(inst, &schCb[inst].sliceCfg, schSliceRecfgReq) != ROK)
1990 DU_LOG("\nERROR --> SCH : Failed to fill sch slice cfg response");
1993 freeSchSliceCfgReq(schSliceRecfgReq);
1998 DU_LOG("\nERROR --> SCH : Received SchSliceRecfgReq is NULL");
2004 /****************************************************************************
2006 * @brief Stores the Paging Configuration from DU APP in CellCb
2010 * Function : schProcPagingParam
2013 * Process the Paging Configuration when FirstPDCCHMonitoring for
2014 * Paging Ocassion is not present.
2016 * As per 38.304 Sec 7.1,
2017 * "When firstPDCCH-MonitoringOccasionOfPO is present, the
2018 * starting PDCCH monitoring occasion number of (i_s + 1)th PO is the
2019 * (i_s + 1)th value of the firstPDCCHMonitoringOccasionOfPO
2020 * parameter; otherwise, it is equal to i_s * S."
2021 * "S = number of actual transmitted SSBs determined according
2022 * to ssb-PositionsInBurst in SIB1"
2024 * @params[in] SchCellCb *cell
2028 *************************************************************************/
2029 void schProcPagingCfg(SchCellCb *cell)
2031 SchPcchCfg *pageCfgRcvd = NULL;
2034 pageCfgRcvd = &(cell->cellCfg.dlCfgCommon.schPcchCfg);
2036 if(pageCfgRcvd->poPresent == TRUE)
2038 /*Fetching first Pdcch Monitoring Occasion for SFN (i_s + 1)th*/
2039 for(i_sIdx = 0; i_sIdx < pageCfgRcvd->numPO; i_sIdx++)
2041 cell->pageCb.pagMonOcc[i_sIdx].pagingOccSlot = pageCfgRcvd->pagingOcc[i_sIdx] / MAX_SYMB_PER_SLOT ;
2042 if ((pageCfgRcvd->pagingOcc[i_sIdx] % MAX_SYMB_PER_SLOT) != 0 )
2044 cell->pageCb.pagMonOcc[i_sIdx].pagingOccSlot++;
2047 cell->pageCb.pagMonOcc[i_sIdx].frameOffset = 0;
2053 schCfgPdcchMonOccOfPO(cell);
2057 /****************************************************************************
2059 * @brief Calculate PO if not present in Configuration
2063 * Function : schCfgPdcchMonOccOfPO
2065 * Functionality: In this function, PO are calculated i_s * S because
2066 * FirstPDCCHMonitoring_ForPO is not present.
2068 * @params[in] SchCellCb *cellCb
2072 *************************************************************************/
2073 void schCfgPdcchMonOccOfPO(SchCellCb *cell)
2075 uint8_t cnt = 0, incr = 1, i_sIdx = 0, frameOffSet = 0;
2076 uint8_t nsValue = cell->cellCfg.dlCfgCommon.schPcchCfg.numPO;
2077 uint8_t totalNumSsb = countSetBits(cell->cellCfg.ssbPosInBurst[0]);
2078 SlotTimingInfo tmpTimingInfo, pdcchTime;
2080 /*Starting with First Sfn and slot*/
2081 tmpTimingInfo.sfn = 0;
2082 tmpTimingInfo.slot = 0;
2084 pdcchTime = tmpTimingInfo;
2086 while(i_sIdx < nsValue)
2088 /*Increment frame Offset if PO falls on next SFN*/
2089 if(pdcchTime.sfn != tmpTimingInfo.sfn)
2093 pdcchTime = tmpTimingInfo;
2094 schIncrSlot(&(tmpTimingInfo), incr, cell->numSlots);
2098 cell->pageCb.pagMonOcc[i_sIdx].pagingOccSlot = pdcchTime.slot;
2099 cell->pageCb.pagMonOcc[i_sIdx].frameOffset = frameOffSet;
2105 if((cnt == totalNumSsb) && (i_sIdx < MAX_PO_PER_PF))
2107 cell->pageCb.pagMonOcc[i_sIdx].pagingOccSlot = pdcchTime.slot;
2108 cell->pageCb.pagMonOcc[i_sIdx].frameOffset = frameOffSet;
2116 /****************************************************************************
2118 * @brief Storing the paging information in SCH database
2122 * Function : schAddPagingIndtoList
2124 * Functionality: Storing the paging information in SCH database
2126 * @params[in] CmLListCp *storedPageList, CmLList *pageIndInfo
2128 * @return ROK - sucess
2131 *************************************************************************/
2132 uint8_t schAddPagingIndtoList(CmLListCp *storedPageList,void * pageIndInfo)
2134 CmLList *firstNodeOfList = NULLP;
2135 CmLList *currentNodeInfo = NULLP;
2136 SchPageInfo *tempNode = NULLP, *recvdNode = NULLP;
2138 recvdNode = (SchPageInfo*) pageIndInfo;
2139 CM_LLIST_FIRST_NODE(storedPageList,firstNodeOfList);
2141 SCH_ALLOC(currentNodeInfo, sizeof(CmLList));
2142 if(!currentNodeInfo)
2144 DU_LOG("\nERROR --> SCH : schAddPagingIndtoList() : Memory allocation failed");
2148 currentNodeInfo->node = (PTR)pageIndInfo;
2149 while(firstNodeOfList)
2151 tempNode = (SchPageInfo*)(firstNodeOfList->node);
2152 if ((recvdNode->pageTxTime.slot < tempNode->pageTxTime.slot))
2154 cmLListInsCrnt(storedPageList, currentNodeInfo);
2157 else if ((recvdNode->pageTxTime.slot == tempNode->pageTxTime.slot))
2159 DU_LOG("\nERROR --> SCH : schAddPagingIndtoList() : Slot[%d] is already present in the list", recvdNode->pageTxTime.slot);
2164 CM_LLIST_NEXT_NODE(storedPageList, firstNodeOfList);
2168 if(!firstNodeOfList)
2170 cmLListAdd2Tail(storedPageList, currentNodeInfo);
2172 DU_LOG("\nDEBUG --> SCH : Paging information is stored successfully for PF:%d, Slot:%d",\
2173 recvdNode->pageTxTime.sfn, recvdNode->pageTxTime.slot);
2177 /****************************************************************************
2179 * @brief Process paging indication at SCH recevied form MAC
2183 * Function : SchProcPagingInd
2185 * Functionality: Process paging indication at SCH recevied form MAC
2187 * @params[in] Pst *pst, SchPageInd *pageInd
2191 *************************************************************************/
2192 uint8_t SchProcPagingInd(Pst *pst, SchPageInd *pageInd)
2194 uint8_t ret = RFAILED;
2195 uint16_t cellIdx = 0;
2196 Inst inst = pst->dstInst - SCH_INST_START;
2197 SchCellCb *cellCb = NULLP;
2198 SchPageInfo *pageInfo = NULLP;
2202 DU_LOG("\nDEBUG --> SCH : Received paging indication from MAC for cellId[%d]",\
2206 for(cellIdx = 0; cellIdx < MAX_NUM_CELL; cellIdx++)
2208 if((schCb[inst].cells[cellIdx]) && (schCb[inst].cells[cellIdx]->cellId == pageInd->cellId))
2210 cellCb = schCb[inst].cells[cellIdx];
2216 if(pageInd->i_s > cellCb->cellCfg.dlCfgCommon.schPcchCfg.numPO)
2218 DU_LOG("\nERROR --> SCH : SchProcPagingInd(): i_s should not be greater than number of paging occasion");
2222 SCH_ALLOC(pageInfo, sizeof(SchPageInfo));
2225 pageInfo->pf = pageInd->pf;
2226 pageInfo->i_s = pageInd->i_s;
2227 pageInfo->pageTxTime.cellId = pageInd->cellId;
2228 pageInfo->pageTxTime.sfn = (pageInd->pf + cellCb->pageCb.pagMonOcc[pageInd->i_s].frameOffset) % MAX_SFN;
2229 pageInfo->pageTxTime.slot = cellCb->pageCb.pagMonOcc[pageInd->i_s].pagingOccSlot;
2230 pageInfo->mcs = DEFAULT_MCS;
2231 pageInfo->msgLen = pageInd->pduLen;
2232 SCH_ALLOC(pageInfo->pagePdu, pageInfo->msgLen);
2233 if(!pageInfo->pagePdu)
2235 DU_LOG("\nERROR --> SCH : SchProcPagingInd(): Failed to allocate memory");
2239 memcpy(pageInfo->pagePdu, pageInd->pagePdu, pageInfo->msgLen);
2240 ret = schAddPagingIndtoList(&cellCb->pageCb.pageIndInfoRecord[pageInfo->pageTxTime.sfn], pageInfo);
2243 DU_LOG("\nERROR --> SCH : SchProcPagingInd(): Failed to store paging record");
2249 DU_LOG("\nERROR --> SCH : SchProcPagingInd(): Failed to allocate memory");
2255 DU_LOG("\nERROR --> SCH : Cell ID [%d] not found", pageInd->cellId);
2257 SCH_FREE(pageInd->pagePdu, pageInd->pduLen);
2258 SCH_FREE(pageInd, sizeof(SchPageInd));
2262 DU_LOG("\nERROR --> SCH : SchProcPagingInd(): Received null pointer");
2268 /***********************************************************
2270 * Func : SchFillCfmPst
2273 * Desc : Fills the Confirmation Post Structure cfmPst using the reqPst
2274 * and the cfm->hdr.response.
2281 * File : rg_sch_lmm.c
2283 **********************************************************/
2293 inst = (reqPst->dstInst - SCH_INST_START);
2295 cfmPst->srcEnt = ENTMAC;
2296 cfmPst->srcInst = (Inst) 1;
2297 cfmPst->srcProcId = schCb[inst].schInit.procId;
2298 cfmPst->dstEnt = ENTMAC;
2299 cfmPst->dstInst = (Inst) 0;
2300 cfmPst->dstProcId = reqPst->srcProcId;
2302 cfmPst->selector = cfm->hdr.response.selector;
2303 cfmPst->region = cfm->hdr.response.mem.region;
2304 cfmPst->pool = cfm->hdr.response.mem.pool;
2309 /*******************************************************************
2311 * @brief Processes DL CQI ind from MAC
2315 * Function : SchProcDlCqiInd
2318 * Processes DL CQI ind from MAC
2321 * @return ROK - success
2324 * ****************************************************************/
2325 uint8_t SchProcDlCqiInd(Pst *pst, SchDlCqiInd *dlCqiInd)
2328 uint16_t ueId = 0, cellIdx = 0;
2329 SchUeCb *ueCb = NULLP;
2330 SchCellCb *cell = NULLP;
2331 Inst inst = pst->dstInst-SCH_INST_START;
2335 DU_LOG("\nERROR --> SCH : SchProcDlCqiInd(): CQI Ind is empty");
2340 GET_CELL_IDX(dlCqiInd->cellId, cellIdx);
2341 cell = schCb[inst].cells[cellIdx];
2344 DU_LOG("\nERROR --> SCH : SchProcDlCqiInd(): cell Id[%d] not found", dlCqiInd->cellId);
2349 if(cell->cellId == dlCqiInd->cellId)
2351 GET_UE_ID(dlCqiInd->crnti, ueId);
2352 ueCb = &cell->ueCb[ueId-1];
2353 if(ueCb->crnti != dlCqiInd->crnti)
2355 DU_LOG("\nERROR --> SCH : SchProcDlCqiInd(): UeCb for received crnti[%d] not found", dlCqiInd->crnti);
2360 /*TODO: complete the processing of DL CQI Ind*/
2365 DU_LOG("\nERROR --> SCH : SchProcDlCqiInd(): Received cell Id[%d] from MAC is not matching with CellID[%d] in SCH Cb",\
2366 dlCqiInd->cellId, cell->cellId);
2374 /*******************************************************************
2376 * @brief Processes UL CQI ind from MAC
2380 * Function : SchProcUlCqiInd
2383 * Processes UL CQI ind from MAC
2386 * @return ROK - success
2389 * ****************************************************************/
2390 uint8_t SchProcUlCqiInd(Pst *pst, SchUlCqiInd *ulCqiInd)
2393 uint16_t ueId = 0, cellIdx = 0;
2394 SchUeCb *ueCb = NULLP;
2395 SchCellCb *cell = NULLP;
2396 Inst inst = pst->dstInst-SCH_INST_START;
2400 DU_LOG("\nERROR --> SCH : SchProcUlCqiInd(): CQI Ind is empty");
2405 GET_CELL_IDX(ulCqiInd->cellId, cellIdx);
2406 cell = schCb[inst].cells[cellIdx];
2409 DU_LOG("\nERROR --> SCH : SchProcUlCqiInd(): cell Id[%d] not found", ulCqiInd->cellId);
2414 if(cell->cellId == ulCqiInd->cellId)
2416 GET_UE_ID(ulCqiInd->crnti, ueId);
2417 ueCb = &cell->ueCb[ueId-1];
2418 if(ueCb->crnti != ulCqiInd->crnti)
2420 DU_LOG("\nERROR --> SCH : SchProcUlCqiInd(): UeCb for received crnti[%d] not found",ulCqiInd->crnti);
2425 /*TODO: complete the processing of UL CQI Ind*/
2430 DU_LOG("\nERROR --> SCH : SchProcUlCqiInd(): Received cell Id[%d] from MAC is not matching with CellId[%d] in SCH Cb",\
2431 ulCqiInd->cellId, cell->cellId);
2439 /*******************************************************************
2441 * @brief Processes PHR ind from MAC
2445 * Function : SchProcPhrInd
2448 * Processes PHR ind from MAC
2451 * @return ROK - success
2454 * ****************************************************************/
2455 uint8_t SchProcPhrInd(Pst *pst, SchPwrHeadroomInd *schPhrInd)
2458 uint16_t ueId = 0, cellIdx = 0;
2459 SchUeCb *ueCb = NULLP;
2460 SchCellCb *cell = NULLP;
2461 Inst inst = pst->dstInst-SCH_INST_START;
2465 DU_LOG("\nERROR --> SCH : SchProcPhrInd(): PHR is empty");
2470 GET_CELL_IDX(schPhrInd->cellId, cellIdx);
2471 cell = schCb[inst].cells[cellIdx];
2474 DU_LOG("\nERROR --> SCH : schProcPhrInd(): cell Id[%d] is not found", schPhrInd->cellId);
2479 if(cell->cellId == schPhrInd->cellId)
2481 GET_UE_ID(schPhrInd->crnti, ueId);
2482 ueCb = &cell->ueCb[ueId-1];
2483 if(ueCb->crnti != schPhrInd->crnti)
2485 DU_LOG("\nERROR --> SCH : SchProcPhrInd(): UeCb for received crnti[%d] not found",schPhrInd->crnti);
2490 /*TODO: complete the processing of PHR Ind*/
2495 DU_LOG("\nERROR --> SCH : SchProcPhrInd(): Mismatch between Received cell Id[%d] from MAC and CellID[%d] in SCH CB ",\
2496 schPhrInd->cellId, cell->cellId);
2504 /*******************************************************************
2506 * @brief Fill and send statistics response to MAC
2510 * Function : SchSendStatsRspToMac
2512 * Functionality: Fill and send statistics response to MAC
2514 * @params[in] Inst inst, SchMacRsp result
2515 * @return ROK - success
2518 * ****************************************************************/
2519 uint8_t SchSendStatsRspToMac(Inst inst, SchMacRsp result, CauseOfResult cause)
2523 SchStatsRsp *statsRsp;
2525 DU_LOG("\nINFO --> SCH : Filling statistics response");
2526 SCH_ALLOC(statsRsp, sizeof(SchStatsRsp));
2527 if(statsRsp == NULLP)
2529 DU_LOG("\nERROR --> SCH : Failed to allocate memory in SchSendStatsRspToMac()");
2532 memset(statsRsp, 0, sizeof(SchStatsRsp));
2533 statsRsp->rsp = result;
2534 statsRsp->cause = cause;
2536 /* Filling response post */
2537 memset(&rspPst, 0, sizeof(Pst));
2538 FILL_PST_SCH_TO_MAC(rspPst, inst);
2539 rspPst.event = EVENT_STATISTICS_RSP_TO_MAC;
2541 ret = MacMessageRouter(&rspPst, (void *)statsRsp);
2544 DU_LOG("\nERROR --> SCH : SchSendStatsRspToMac(): Failed to send Statistics Response");
2550 /*******************************************************************
2552 * @brief Processes Statistics Request from MAC
2556 * Function : SchProcStatsReq
2559 * Processes Statistics Request from MAC
2562 * @return ROK - success
2565 * ****************************************************************/
2566 uint8_t SchProcStatsReq(Pst *pst, SchStatsReq *statsReq)
2569 Inst inst = pst->dstInst - SCH_INST_START;
2570 SchMacRsp rsp = RSP_OK;
2571 CauseOfResult cause = SUCCESSFUL;
2572 bool isDlTotlPrbUseCfgd = false, isUlTotlPrbUseCfgd = false;
2574 DU_LOG("\nINFO --> SCH : Received Statistics Request from MAC");
2576 for(idx=0; idx < statsReq->numStats; idx++)
2578 switch(statsReq->statsList[idx].type)
2580 case SCH_DL_TOTAL_PRB_USAGE:
2582 /* Check if duplicate configuration */
2583 if(schCb[inst].statistics.dlTotalPrbUsage)
2585 DU_LOG("\nERROR --> SCH : SCH_DL_TOTAL_PRB_USAGE stats already configured");
2587 cause = DUPLICATE_ENTRY;
2590 /* Allocate memory */
2591 SCH_ALLOC(schCb[inst].statistics.dlTotalPrbUsage, sizeof(TotalPrbUsage));
2592 if(!schCb[inst].statistics.dlTotalPrbUsage)
2594 DU_LOG("\nERROR --> SCH : Memory allocation failed for dlTotalPrbUsage in \
2595 SchProcStatsReq()");
2597 cause = RESOURCE_UNAVAILABLE;
2602 memset(schCb[inst].statistics.dlTotalPrbUsage, 0, sizeof(TotalPrbUsage));
2605 schCb[inst].statistics.dlTotalPrbUsage->schInst = inst;
2606 schCb[inst].statistics.dlTotalPrbUsage->periodicity = statsReq->statsList[idx].periodicity;
2607 cmInitTimers(&(schCb[inst].statistics.dlTotalPrbUsage->periodTimer), 1);
2610 schStartTmr(&schCb[inst], (PTR)(schCb[inst].statistics.dlTotalPrbUsage), \
2611 EVENT_DL_TOTAL_PRB_USAGE_TMR, schCb[inst].statistics.dlTotalPrbUsage->periodicity);
2613 isDlTotlPrbUseCfgd = true;
2617 case SCH_UL_TOTAL_PRB_USAGE:
2619 /* Check if duplicate configuration */
2620 if(schCb[inst].statistics.ulTotalPrbUsage)
2622 DU_LOG("\nERROR --> SCH : SCH_UL_TOTAL_PRB_USAGE stats already configured");
2624 cause = DUPLICATE_ENTRY;
2627 /* Allocate memory */
2628 SCH_ALLOC(schCb[inst].statistics.ulTotalPrbUsage, sizeof(TotalPrbUsage));
2629 if(!schCb[inst].statistics.ulTotalPrbUsage)
2631 DU_LOG("\nERROR --> SCH : Memory allocation failed for ulTotalPrbUsage in \
2632 SchProcStatsReq()");
2634 cause = RESOURCE_UNAVAILABLE;
2639 memset(schCb[inst].statistics.ulTotalPrbUsage, 0, sizeof(TotalPrbUsage));
2642 schCb[inst].statistics.ulTotalPrbUsage->schInst = inst;
2643 schCb[inst].statistics.ulTotalPrbUsage->periodicity = statsReq->statsList[idx].periodicity;
2644 cmInitTimers(&(schCb[inst].statistics.ulTotalPrbUsage->periodTimer), 1);
2647 schStartTmr(&schCb[inst], (PTR)(schCb[inst].statistics.ulTotalPrbUsage), \
2648 EVENT_UL_TOTAL_PRB_USAGE_TMR, schCb[inst].statistics.ulTotalPrbUsage->periodicity);
2650 isUlTotlPrbUseCfgd = true;
2655 DU_LOG("\nERROR --> SCH : Invalid statistics type [%d]", statsReq->statsList[idx].type);
2657 cause = PARAM_INVALID;
2659 } /* End of switch */
2663 /* If failed to configure any KPI, then clear configuration of other
2664 * KPIs that were configured successfully as part of this statsReq */
2665 if(isDlTotlPrbUseCfgd)
2667 if((schChkTmr((PTR)(schCb[inst].statistics.dlTotalPrbUsage), EVENT_DL_TOTAL_PRB_USAGE_TMR)) == FALSE)
2669 schStopTmr(&schCb[inst], (PTR)(schCb[inst].statistics.dlTotalPrbUsage), EVENT_DL_TOTAL_PRB_USAGE_TMR);
2671 SCH_FREE(schCb[inst].statistics.dlTotalPrbUsage, sizeof(TotalPrbUsage));
2674 if(isUlTotlPrbUseCfgd)
2676 if((schChkTmr((PTR)(schCb[inst].statistics.ulTotalPrbUsage), EVENT_UL_TOTAL_PRB_USAGE_TMR)) == FALSE)
2678 schStopTmr(&schCb[inst], (PTR)(schCb[inst].statistics.ulTotalPrbUsage), EVENT_UL_TOTAL_PRB_USAGE_TMR);
2680 SCH_FREE(schCb[inst].statistics.ulTotalPrbUsage, sizeof(TotalPrbUsage));
2686 SCH_FREE(statsReq, sizeof(SchStatsReq));
2688 SchSendStatsRspToMac(inst, rsp, cause);
2691 } /* End of SchProcStatsReq */
2693 /*******************************************************************
2695 * @brief Fill and send statistics indication to MAC
2699 * Function : SchSendStatsIndToMac
2701 * Functionality: Fill and send statistics indication to MAC
2703 * @params[in] SCH Instance
2706 * Size of value parameter
2707 * @return ROK - success
2710 * ****************************************************************/
2711 uint8_t SchSendStatsIndToMac(Inst inst, SchMeasurementType measType, double value)
2715 SchStatsInd statsInd;
2718 DU_LOG("\nDEBUG --> SCH : Filling statistics indication");
2721 memset(&statsInd, 0, sizeof(SchStatsInd));
2722 statsInd.type = measType;
2723 statsInd.value = value;
2725 /* Filling post structure */
2726 memset(&pst, 0, sizeof(Pst));
2727 FILL_PST_SCH_TO_MAC(pst, inst);
2728 pst.event = EVENT_STATISTICS_IND_TO_MAC;
2730 ret = MacMessageRouter(&pst, (void *)&statsInd);
2733 DU_LOG("\nERROR --> SCH : SchSendStatsIndToMac(): Failed to send Statistics Indication");
2739 /**********************************************************************
2741 **********************************************************************/