1 /*******************************************************************************
2 ################################################################################
3 # Copyright (c) [2017-2019] [Radisys] #
5 # Licensed under the Apache License, Version 2.0 (the "License"); #
6 # you may not use this file except in compliance with the License. #
7 # You may obtain a copy of the License at #
9 # http://www.apache.org/licenses/LICENSE-2.0 #
11 # Unless required by applicable law or agreed to in writing, software #
12 # distributed under the License is distributed on an "AS IS" BASIS, #
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
14 # See the License for the specific language governing permissions and #
15 # limitations under the License. #
16 ################################################################################
17 *******************************************************************************/
19 /************************************************************************
25 Desc: C source code for Entry point fucntions
29 **********************************************************************/
31 /** @file sch_common.c
32 @brief This module performs common scheduling
34 #include "common_def.h"
41 #include "du_app_mac_inf.h"
42 #include "mac_sch_interface.h"
44 #include "sch_utils.h"
47 * @brief common resource allocation for SSB
51 * Function : schBroadcastSsbAlloc
53 * This function handles common scheduling for SSB
55 * @param[in] SchCellCb *cell, cell cb
56 * @param[in] DlBrdcstAlloc *dlBrdcstAlloc, DL brdcst allocation
59 uint8_t schBroadcastSsbAlloc(SchCellCb *cell, SlotTimingInfo slotTime, DlBrdcstAlloc *dlBrdcstAlloc)
62 uint8_t ssbStartSymb, idx;
64 SchDlSlotInfo *schDlSlotInfo;
69 DU_LOG("\nERROR --> SCH: schBroadcastSsbAlloc() : Cell is NULL");
73 if(dlBrdcstAlloc == NULL)
75 DU_LOG("\nERROR --> SCH: schBroadcastSsbAlloc() : dlBrdcstAlloc is NULL");
79 schDlSlotInfo = cell->schDlSlotInfo[slotTime.slot];
80 ssbStartPrb = cell->cellCfg.ssbSubcOffset; //+Kssb
81 ssbStartSymb = cell->ssbStartSymbArr[dlBrdcstAlloc->ssbIdxSupported-1]; /*since we are supporting only 1 ssb beam */
83 /* Assign interface structure */
84 for(idx=0; idx<dlBrdcstAlloc->ssbIdxSupported; idx++)
87 ssbInfo.fdAlloc.startPrb = ssbStartPrb;
88 ssbInfo.fdAlloc.numPrb = SCH_SSB_NUM_PRB;
89 ssbInfo.tdAlloc.startSymb = ssbStartSymb;
90 ssbInfo.tdAlloc.numSymb = SCH_SSB_NUM_SYMB;
91 dlBrdcstAlloc->ssbInfo[idx] = ssbInfo;
92 schDlSlotInfo->ssbInfo[idx] = ssbInfo;
95 if((allocatePrbDl(cell, slotTime, ssbStartSymb, SCH_SSB_NUM_SYMB, &ssbInfo.fdAlloc.startPrb, ssbInfo.fdAlloc.numPrb)) != ROK)
97 DU_LOG("\nERROR --> SCH: PRB allocation failed for SSB in SFN:SLOT [%d : %d]", slotTime.sfn, slotTime.slot);
102 schDlSlotInfo->ssbPres = true;
103 schDlSlotInfo->ssbIdxSupported = dlBrdcstAlloc->ssbIdxSupported;
108 * @brief common resource allocation for SIB1
112 * Function : schBroadcastSib1Alloc
114 * This function handles common scheduling for SIB1
116 * @param[in] SchCellCb *cell, cell cb
117 * @param[in] DlBrdcstAlloc *dlBrdcstAlloc, DL brdcst allocation
120 uint8_t schBroadcastSib1Alloc(SchCellCb *cell, SlotTimingInfo slotTime, DlBrdcstAlloc *dlBrdcstAlloc)
122 uint8_t dmrsStartSymbol, startSymbol, numSymbol ;
124 PdschFreqAlloc freqAlloc;
125 PdschTimeAlloc timeAlloc;
126 SchDlSlotInfo *schDlSlotInfo = NULLP;
130 DU_LOG("\nERROR --> SCH: schBroadcastSsbAlloc() : Cell is NULL");
134 if(dlBrdcstAlloc == NULL)
136 DU_LOG("\nERROR --> SCH: schBroadcastSsbAlloc() : dlBrdcstAlloc is NULL");
140 dlBrdcstAlloc->crnti = SI_RNTI;
141 dmrs = cell->sib1SchCfg.sib1PdcchCfg.dci.pdschCfg.dmrs;
142 freqAlloc = cell->sib1SchCfg.sib1PdcchCfg.dci.pdschCfg.pdschFreqAlloc;
143 timeAlloc = cell->sib1SchCfg.sib1PdcchCfg.dci.pdschCfg.pdschTimeAlloc;
144 schDlSlotInfo = cell->schDlSlotInfo[slotTime.slot];
146 /* Find total symbols used including DMRS */
147 /* If there are no DRMS symbols, findDmrsStartSymbol() returns MAX_SYMB_PER_SLOT,
148 * in that case only PDSCH symbols are marked as occupied */
149 dmrsStartSymbol = findDmrsStartSymbol(dmrs.dlDmrsSymbPos);
150 if(dmrsStartSymbol == MAX_SYMB_PER_SLOT)
152 startSymbol = timeAlloc.startSymb;
153 numSymbol = timeAlloc.numSymb;
155 /* If DMRS symbol is found, mark DMRS and PDSCH symbols as occupied */
158 startSymbol = dmrsStartSymbol;
159 numSymbol = dmrs.nrOfDmrsSymbols + timeAlloc.numSymb;
163 if((allocatePrbDl(cell, slotTime, startSymbol, numSymbol, &freqAlloc.startPrb, freqAlloc.numPrb)) != ROK)
165 DU_LOG("\nERROR --> SCH: PRB allocation failed for SIB1 in SFN:Slot [%d : %d]", slotTime.sfn, slotTime.slot);
169 memcpy(&dlBrdcstAlloc->sib1Alloc.bwp, &cell->sib1SchCfg.bwp, sizeof(BwpCfg));
170 SCH_ALLOC(dlBrdcstAlloc->sib1Alloc.sib1PdcchCfg,sizeof(PdcchCfg));
171 if(dlBrdcstAlloc->sib1Alloc.sib1PdcchCfg)
173 memcpy(dlBrdcstAlloc->sib1Alloc.sib1PdcchCfg, &cell->sib1SchCfg.sib1PdcchCfg, sizeof(PdcchCfg));
174 schDlSlotInfo->sib1Pres = true;
178 DU_LOG("\nERROR --> SCH : Memory allocation failed in %s", __func__);
184 /*******************************************************************
186 * @brief Handles sending UL scheduler info to MAC
190 * Function : sendUlSchInfoToMac
193 * Sends UL Sch info to MAC from SCH
196 * @return ROK - success
199 * ****************************************************************/
200 int sendUlSchInfoToMac(UlSchedInfo *ulSchedInfo, Inst inst)
204 memset(&pst, 0, sizeof(Pst));
205 FILL_PST_SCH_TO_MAC(pst, inst);
206 pst.event = EVENT_UL_SCH_INFO;
208 return(MacMessageRouter(&pst, (void *)ulSchedInfo));
212 * @brief Function to fill Pucch Format 0
216 * Function : fillPucchFormat0
218 * Function to fill Pucch format 0
220 * @param[in] SchPucchInfo pointer, SchPucchResrcInfo pointer
224 void fillPucchFormat0(SchPucchInfo *ulSchedPucch, SchPucchResrcInfo *resrcInfo)
226 if(resrcInfo->SchPucchFormat.format0)
228 ulSchedPucch->fdAlloc.numPrb = PUCCH_NUM_PRB_FORMAT_0_1_4;
229 ulSchedPucch->pucchFormat = PUCCH_FORMAT_0;
230 ulSchedPucch->initialCyclicShift = resrcInfo->SchPucchFormat.format0->initialCyclicShift;
231 ulSchedPucch->tdAlloc.numSymb = resrcInfo->SchPucchFormat.format0->numSymbols;
232 ulSchedPucch->tdAlloc.startSymb = resrcInfo->SchPucchFormat.format0->startSymbolIdx;
237 * @brief Function to fill Pucch Format 1
241 * Function : fillPucchFormat1
243 * Function to fill Pucch format 1
245 * @param[in] SchPucchInfo pointer, SchPucchResrcInfo pointer
249 void fillPucchFormat1(SchPucchInfo *ulSchedPucch, SchPucchResrcInfo *resrcInfo)
251 if(resrcInfo->SchPucchFormat.format1)
253 ulSchedPucch->fdAlloc.numPrb = PUCCH_NUM_PRB_FORMAT_0_1_4;
254 ulSchedPucch->pucchFormat = PUCCH_FORMAT_1;
255 ulSchedPucch->initialCyclicShift = resrcInfo->SchPucchFormat.format1->initialCyclicShift;
256 ulSchedPucch->tdAlloc.numSymb = resrcInfo->SchPucchFormat.format1->numSymbols;
257 ulSchedPucch->tdAlloc.startSymb = resrcInfo->SchPucchFormat.format1->startSymbolIdx;
258 ulSchedPucch->timeDomOCC = resrcInfo->SchPucchFormat.format1->timeDomOCC;
263 * @brief Function to fill Pucch format for UL Sched Info
267 * Function : fillUlSchedPucchFormat
269 * Function to fill Pucch format for UL Sched Info
271 * @param[in] pucchFormat , SchPucchInfo pointer,
272 * @param[in] SchPucchFormatCfg pointer, SchPucchResrcInfo pointer
276 uint8_t fillUlSchedPucchFormat(uint8_t pucchFormat, SchPucchInfo *ulSchedPucch,\
277 SchPucchResrcInfo *resrcInfo, SchPucchFormatCfg *formatCfg)
286 fillPucchFormat0(ulSchedPucch, resrcInfo);
293 fillPucchFormat1(ulSchedPucch, resrcInfo);
297 ulSchedPucch->addDmrs = formatCfg->addDmrs;
298 ulSchedPucch->pi2BPSK = formatCfg->pi2BPSK;
301 }/* To Add support for more Pucch Format */
304 DU_LOG("\nERROR --> SCH : Invalid PUCCH format[%d] in fillUlSchedPucchFormatCfg()", pucchFormat);
312 * @brief Function to fill Pucch Dedicated Cfg for UL Sched Info
316 * Function : fillUlSchedPucchDedicatedCfg
318 * Function to fill Pucch Dedicated Cfg for UL Sched Info
320 * @param[in] pucchFormat to be filled
321 * @param[in] SchPucchFormatCfg pointer, SchPucchCfg pointer
325 uint8_t fillUlSchedPucchDedicatedCfg(SchCellCb *cell, SchPucchCfg *pucchDedCfg,\
326 SlotTimingInfo *slotInfo, SchPucchInfo *ulSchedPucch)
328 uint8_t ret, resrcSetIdx, resrcIdx, schedReqIdx, srPeriodicity = 0;
329 uint16_t srOffset = 0;
330 uint16_t numSlots = cell->numSlots;
331 bool isAllocated = false;
332 uint16_t pucchStartPrb;
334 if(pucchDedCfg->resrcSet && pucchDedCfg->resrc)
336 //Assuming one entry in the list
337 for(resrcSetIdx = 0; resrcSetIdx < pucchDedCfg->resrcSet->resrcSetToAddModListCount; resrcSetIdx++)
339 for(resrcIdx = 0; resrcIdx < pucchDedCfg->resrc->resrcToAddModListCount; resrcIdx++)
341 if(pucchDedCfg->resrcSet->resrcSetToAddModList[resrcSetIdx].resrcList[resrcSetIdx] ==\
342 pucchDedCfg->resrc->resrcToAddModList[resrcIdx].resrcId)
344 ulSchedPucch->intraFreqHop = pucchDedCfg->resrc->resrcToAddModList[resrcIdx].intraFreqHop;
345 ulSchedPucch->secondPrbHop = pucchDedCfg->resrc->resrcToAddModList[resrcIdx].secondPrbHop;
346 ulSchedPucch->fdAlloc.startPrb = pucchDedCfg->resrc->resrcToAddModList[resrcIdx].startPrb;
347 ulSchedPucch->pucchFormat = pucchDedCfg->resrc->resrcToAddModList[resrcIdx].pucchFormat;
348 ret = fillUlSchedPucchFormat(ulSchedPucch->pucchFormat, ulSchedPucch,\
349 &pucchDedCfg->resrc->resrcToAddModList[resrcIdx], NULLP);
353 pucchStartPrb = pucchDedCfg->resrc->resrcToAddModList[resrcIdx].startPrb;
354 ret = allocatePrbUl(cell, *slotInfo, ulSchedPucch->tdAlloc.startSymb, ulSchedPucch->tdAlloc.numSymb, &pucchStartPrb, PUCCH_NUM_PRB_FORMAT_0_1_4);
367 if(pucchDedCfg->format1)
369 ret = fillUlSchedPucchFormat(ulSchedPucch->pucchFormat, ulSchedPucch, NULLP, pucchDedCfg->format1);
379 /* setting SR and UCI flag */
380 if(pucchDedCfg->schedReq)
382 for(schedReqIdx = 0; schedReqIdx < pucchDedCfg->schedReq->schedAddModListCount; schedReqIdx++)
384 srPeriodicity = pucchDedCfg->schedReq->schedAddModList[schedReqIdx].periodicity;
385 srOffset = pucchDedCfg->schedReq->schedAddModList[schedReqIdx].offset;
388 if(((numSlots * slotInfo->sfn + slotInfo->slot - srOffset) % srPeriodicity) == 0)
390 ulSchedPucch->srFlag = true;
397 * @brief Function to fill Pucch Resource Info
401 * Function : fillPucchResourceInfo
403 * Function to fill Pucch Resource Info
405 * @param[in] SchPucchInfo *schPucchInfo, Inst inst
406 * @return ROK/RFAILED
409 uint16_t fillPucchResourceInfo(uint8_t ueId, SchPucchInfo *schPucchInfo, Inst inst, SlotTimingInfo slotInfo)
411 uint8_t ret = ROK, ueIdx = 0, pucchIdx = 0;
412 SchCellCb *cell = schCb[inst].cells[inst];
413 SchPucchCfgCmn *pucchCfg = NULLP;
414 SchBwpParams *ulBwp = NULLP;
416 SchUeCb *ueCb = NULLP;
422 ueCb = &(cell->ueCb[ueIdx]);
423 if(ueCb->ueDrxInfoPres)
425 if(!ueCb->drxUeCb.drxUlUeActiveStatus)
429 if(cell->ueCb[ueIdx].ueCfg.spCellCfg.servCellRecfg.initUlBwp.pucchCfgPres)
431 /* fill pucch dedicated cfg */
432 ret = fillUlSchedPucchDedicatedCfg(cell,\
433 &cell->ueCb[ueIdx].ueCfg.spCellCfg.servCellRecfg.initUlBwp.pucchCfg, &slotInfo, schPucchInfo);
436 memset(schPucchInfo, 0, sizeof(SchPucchInfo));
437 DU_LOG("\nERROR --> SCH : Filling PUCCH dedicated cfg failed at fillPucchResourceInfo()");
443 /* fill pucch common cfg */
444 /* derive pucchResourceSet from schCellCfg */
445 pucchCfg = &cell->cellCfg.ulCfgCommon.schInitialUlBwp.pucchCommon;
446 pucchIdx = pucchCfg->pucchResourceCommon;
447 ulBwp = &cell->cellCfg.ulCfgCommon.schInitialUlBwp.bwp;
448 startPrb = ulBwp->freqAlloc.startPrb + pucchResourceSet[pucchIdx][3];
449 ret = allocatePrbUl(cell, slotInfo, pucchResourceSet[pucchIdx][1], pucchResourceSet[pucchIdx][2],\
450 &startPrb, PUCCH_NUM_PRB_FORMAT_0_1_4);
453 schPucchInfo->fdAlloc.startPrb = ulBwp->freqAlloc.startPrb + pucchResourceSet[pucchIdx][3];
454 schPucchInfo->fdAlloc.numPrb = PUCCH_NUM_PRB_FORMAT_0_1_4;
455 schPucchInfo->tdAlloc.startSymb = pucchResourceSet[pucchIdx][1];
456 schPucchInfo->tdAlloc.numSymb = pucchResourceSet[pucchIdx][2];
457 schPucchInfo->pucchFormat = pucchResourceSet[pucchIdx][0];
459 /* set SR and UCI flag to false */
460 schPucchInfo->srFlag = true;
467 * @brief resource allocation for UL
471 * Function : schUlResAlloc
473 * This function handles UL Resource allocation
475 * @param[in] SchCellCb *cell, cellCb
478 uint8_t schUlResAlloc(SchCellCb *cell, Inst schInst)
484 UlSchedInfo ulSchedInfo;
485 SchUlSlotInfo *schUlSlotInfo = NULLP;
486 SlotTimingInfo ulTimingInfo;
487 memset(&ulSchedInfo, 0, sizeof(UlSchedInfo));
490 ADD_DELTA_TO_TIME(cell->slotInfo,ulTimingInfo,PHY_DELTA_UL+SCHED_DELTA, cell->numSlots);
492 ulSchedInfo.cellId = cell->cellId;
493 ulSchedInfo.slotIndInfo.cellId = ulSchedInfo.cellId;
494 ulSchedInfo.slotIndInfo.sfn = ulTimingInfo.sfn;
495 ulSchedInfo.slotIndInfo.slot = ulTimingInfo.slot;
497 /* Schedule resources for PRACH */
498 if(cell->firstSib1Transmitted)
499 schPrachResAlloc(cell, &ulSchedInfo, ulTimingInfo);
501 schUlSlotInfo = cell->schUlSlotInfo[ulTimingInfo.slot];
502 if(schUlSlotInfo->schPuschInfo)
504 GET_CRNTI(ulSchedInfo.crnti, schUlSlotInfo->puschUe);
505 /* Check the ue drx status if the UE is active for uplink scheduling or not */
507 ueCb = schGetUeCb(cell, ulSchedInfo.crnti);
508 if(ueCb->ueDrxInfoPres)
510 if(!ueCb->drxUeCb.drxUlUeActiveStatus)
514 ulSchedInfo.dataType |= SCH_DATATYPE_PUSCH;
515 memcpy(&ulSchedInfo.schPuschInfo, schUlSlotInfo->schPuschInfo,
516 sizeof(SchPuschInfo));
517 SCH_FREE(schUlSlotInfo->schPuschInfo, sizeof(SchPuschInfo));
518 schUlSlotInfo->schPuschInfo = NULL;
521 if(schUlSlotInfo->pucchPres)
523 GET_CRNTI(ulSchedInfo.crnti, schUlSlotInfo->pucchUe);
524 ret = fillPucchResourceInfo(schUlSlotInfo->pucchUe, &schUlSlotInfo->schPucchInfo, schInst, ulTimingInfo);
527 ulSchedInfo.dataType |= SCH_DATATYPE_UCI;
528 memcpy(&ulSchedInfo.schPucchInfo, &schUlSlotInfo->schPucchInfo,
529 sizeof(SchPucchInfo));
535 memset(&schUlSlotInfo->schPucchInfo, 0, sizeof(SchPucchInfo));
539 ret = sendUlSchInfoToMac(&ulSchedInfo, schInst);
542 DU_LOG("\nERROR --> SCH : Sending UL Sch info from SCH to MAC failed");
545 schInitUlSlot(schUlSlotInfo);
549 /*******************************************************************
551 * @brief Fills pdcch and pdsch info for msg4
555 * Function : schDlRsrcAllocMsg4
558 * Fills pdcch and pdsch info for msg4
560 * @params[in] SchCellCb *cell, SlotTimingInfo msg4Time
561 * @params[in] uint8_t ueId, DlMsgSchInfo *dlMsgAlloc
562 * @params[in] uint8_t pdschStartSymbol, uint8_t pdschNumSymbols
563 * @params[in] bool isRetx, SchDlHqProcCb *hqP
564 * @return ROK - success
567 * ****************************************************************/
568 uint8_t schDlRsrcAllocMsg4(SchCellCb *cell, SlotTimingInfo msg4Time, uint8_t ueId, DlMsgSchInfo *dlMsgAlloc,\
569 uint8_t pdschStartSymbol, uint8_t pdschNumSymbols, bool isRetx, SchDlHqProcCb *hqP)
571 uint8_t coreset0Idx = 0;
572 uint8_t firstSymbol = 0;
573 uint8_t numSymbols = 0;
574 uint8_t mcs = DEFAULT_MCS; /* MCS fixed to 4 */
575 uint8_t dmrsStartSymbol = 0, startSymbol = 0, numSymbol = 0;
578 SchBwpDlCfg *initialBwp = NULLP;
579 PdcchCfg *pdcch = NULLP;
580 PdschCfg *pdsch = NULLP;
582 DlMsgSchInfo *msg4Alloc = NULLP;
586 DU_LOG("\nERROR --> SCH: schDlRsrcAllocMsg4() : Cell is NULL");
590 if(dlMsgAlloc == NULL)
592 DU_LOG("\nERROR --> SCH: schDlRsrcAllocMsg4() : dlMsgAlloc is NULL");
596 msg4Alloc = dlMsgAlloc;
597 initialBwp = &cell->cellCfg.dlCfgCommon.schInitialDlBwp;
598 SCH_ALLOC(msg4Alloc->dlMsgPdcchCfg, sizeof(PdcchCfg));
600 if(!msg4Alloc->dlMsgPdcchCfg)
602 DU_LOG("\nERROR --> SCH : Memory allocation failed in %s",__func__);
605 pdcch = msg4Alloc->dlMsgPdcchCfg;
606 bwp = &msg4Alloc->bwp;
607 coreset0Idx = initialBwp->pdcchCommon.commonSearchSpace.coresetId;
609 fillDlMsgInfo(msg4Alloc, cell->raCb[ueId-1].tcrnti, isRetx, hqP);
610 msg4Alloc->dlMsgPduLen = cell->raCb[ueId-1].dlMsgPduLen;
612 /* derive the sib1 coreset0 params from table 13-1 spec 38.213 */
613 numRbs = coresetIdxTable[coreset0Idx][1];
614 numSymbols = coresetIdxTable[coreset0Idx][2];
616 /* calculate time domain parameters */
617 uint16_t mask = 0x2000;
618 for(firstSymbol=0; firstSymbol<MAX_SYMB_PER_SLOT; firstSymbol++)
620 if(initialBwp->pdcchCommon.commonSearchSpace.monitoringSymbol & mask)
627 bwp->freqAlloc.numPrb = initialBwp->bwp.freqAlloc.numPrb;
628 bwp->freqAlloc.startPrb = initialBwp->bwp.freqAlloc.startPrb;
629 bwp->subcarrierSpacing = initialBwp->bwp.scs;
630 bwp->cyclicPrefix = initialBwp->bwp.cyclicPrefix;
632 /* fill the PDCCH PDU */
633 pdcch->coresetCfg.startSymbolIndex = firstSymbol;
634 pdcch->coresetCfg.durationSymbols = numSymbols;
635 memcpy(pdcch->coresetCfg.freqDomainResource, \
636 cell->cellCfg.dlCfgCommon.schInitialDlBwp.pdcchCommon.commonSearchSpace.freqDomainRsrc, FREQ_DOM_RSRC_SIZE);
638 pdcch->coresetCfg.cceRegMappingType = 1; /* coreset0 is always interleaved */
639 pdcch->coresetCfg.regBundleSize = 6; /* spec-38.211 sec 7.3.2.2 */
640 pdcch->coresetCfg.interleaverSize = 2; /* spec-38.211 sec 7.3.2.2 */
641 pdcch->coresetCfg.coreSetType = 0;
642 pdcch->coresetCfg.coreSetSize = numRbs;
643 pdcch->coresetCfg.shiftIndex = cell->cellCfg.phyCellId;
644 pdcch->coresetCfg.precoderGranularity = 0; /* sameAsRegBundle */
646 pdcch->dci.rnti = cell->raCb[ueId-1].tcrnti;
647 pdcch->dci.scramblingId = cell->cellCfg.phyCellId;
648 pdcch->dci.scramblingRnti = 0;
649 pdcch->dci.cceIndex = 4; /* considering SIB1 is sent at cce 0-1-2-3 */
650 pdcch->dci.aggregLevel = 4;
651 pdcch->dci.beamPdcchInfo.numPrgs = 1;
652 pdcch->dci.beamPdcchInfo.prgSize = 1;
653 pdcch->dci.beamPdcchInfo.digBfInterfaces = 0;
654 pdcch->dci.beamPdcchInfo.prg[0].pmIdx = 0;
655 pdcch->dci.beamPdcchInfo.prg[0].beamIdx[0] = 0;
656 pdcch->dci.txPdcchPower.beta_pdcch_1_0 = 0;
657 pdcch->dci.txPdcchPower.powerControlOffsetSS = 0;
658 pdsch = &pdcch->dci.pdschCfg;
660 /* fill the PDSCH PDU */
662 pdsch->pduBitmap = 0; /* PTRS and CBG params are excluded */
663 pdsch->rnti = cell->raCb[ueId-1].tcrnti;
665 pdsch->numCodewords = 1;
666 for(cwCount = 0; cwCount < pdsch->numCodewords; cwCount++)
668 pdsch->codeword[cwCount].targetCodeRate = 308;
669 pdsch->codeword[cwCount].qamModOrder = 2;
670 pdsch->codeword[cwCount].mcsIndex = mcs; /* mcs configured to 4 */
671 pdsch->codeword[cwCount].mcsTable = 0; /* notqam256 */
674 tbSize = schCalcTbSize(msg4Alloc->dlMsgPduLen + TX_PAYLOAD_HDR_LEN); /* MSG4 size + FAPI header size*/
675 hqP->tbInfo[cwCount].tbSzReq = tbSize;
676 pdsch->codeword[cwCount].rvIndex = 0;
680 pdsch->codeword[cwCount].rvIndex = (pdsch->codeword[cwCount].rvIndex +1) & 0x03;
681 tbSize = hqP->tbInfo[cwCount].tbSzReq;
683 pdsch->codeword[cwCount].tbSize = tbSize;
685 pdsch->dataScramblingId = cell->cellCfg.phyCellId;
686 pdsch->numLayers = 1;
687 pdsch->transmissionScheme = 0;
689 pdsch->dmrs.dlDmrsSymbPos = DL_DMRS_SYMBOL_POS;
690 pdsch->dmrs.dmrsConfigType = 0; /* type-1 */
691 pdsch->dmrs.dlDmrsScramblingId = cell->cellCfg.phyCellId;
692 pdsch->dmrs.scid = 0;
693 pdsch->dmrs.numDmrsCdmGrpsNoData = 1;
694 pdsch->dmrs.dmrsPorts = 0;
695 pdsch->dmrs.mappingType = DMRS_MAP_TYPE_A; /* Setting to Type-A */
696 pdsch->dmrs.nrOfDmrsSymbols = NUM_DMRS_SYMBOLS;
697 pdsch->dmrs.dmrsAddPos = DMRS_ADDITIONAL_POS;
699 pdsch->pdschTimeAlloc.startSymb = pdschStartSymbol;
700 pdsch->pdschTimeAlloc.numSymb = pdschNumSymbols;
702 pdsch->pdschFreqAlloc.resourceAllocType = 1; /* RAT type-1 RIV format */
703 pdsch->pdschFreqAlloc.startPrb = MAX_NUM_RB;
704 pdsch->pdschFreqAlloc.numPrb = schCalcNumPrb(tbSize, mcs, pdschNumSymbols);
705 pdsch->pdschFreqAlloc.vrbPrbMapping = 0; /* non-interleaved */
707 /* Find total symbols occupied including DMRS */
708 dmrsStartSymbol = findDmrsStartSymbol(pdsch->dmrs.dlDmrsSymbPos);
709 /* If there are no DRMS symbols, findDmrsStartSymbol() returns MAX_SYMB_PER_SLOT,
710 * in that case only PDSCH symbols are marked as occupied */
711 if(dmrsStartSymbol == MAX_SYMB_PER_SLOT)
713 startSymbol = pdsch->pdschTimeAlloc.startSymb;
714 numSymbol = pdsch->pdschTimeAlloc.numSymb;
716 /* If DMRS symbol is found, mark DMRS and PDSCH symbols as occupied */
719 startSymbol = dmrsStartSymbol;
720 numSymbol = pdsch->dmrs.nrOfDmrsSymbols + pdsch->pdschTimeAlloc.numSymb;
723 /* Allocate the number of PRBs required for RAR PDSCH */
724 if((allocatePrbDl(cell, msg4Time, startSymbol, numSymbol,\
725 &pdsch->pdschFreqAlloc.startPrb, pdsch->pdschFreqAlloc.numPrb)) != ROK)
727 DU_LOG("\nERROR --> SCH : Resource allocation failed for MSG4");
728 SCH_FREE(msg4Alloc->dlMsgPdcchCfg, sizeof(PdcchCfg));
732 pdsch->beamPdschInfo.numPrgs = 1;
733 pdsch->beamPdschInfo.prgSize = 1;
734 pdsch->beamPdschInfo.digBfInterfaces = 0;
735 pdsch->beamPdschInfo.prg[0].pmIdx = 0;
736 pdsch->beamPdschInfo.prg[0].beamIdx[0] = 0;
737 pdsch->txPdschPower.powerControlOffset = 0;
738 pdsch->txPdschPower.powerControlOffsetSS = 0;
743 /*******************************************************************
745 * @brief Scheduling for Pucch Resource
749 * Function : schAllocPucchResource
752 * Scheduling for Pucch Resource
754 * @params[in] SchCellCb *cell, SlotTimingInfo pucchTime, crnti
755 * @params[in] SchUeCb *ueCb, bool isRetx, SchDlHqProcCb *hqP
756 * @return ROK - success
759 *******************************************************************/
761 uint16_t schAllocPucchResource(SchCellCb *cell, SlotTimingInfo pucchTime, uint16_t crnti,
762 SchUeCb *ueCb, bool isRetx, SchDlHqProcCb *hqP)
764 uint16_t pucchSlot = 0;
765 SchUlSlotInfo *schUlSlotInfo = NULLP;
767 pucchSlot = pucchTime.slot;
768 schUlSlotInfo = cell->schUlSlotInfo[pucchSlot];
769 memset(&schUlSlotInfo->schPucchInfo, 0, sizeof(SchPucchInfo));
771 schUlSlotInfo->pucchPres = true;
774 /* set HARQ flag to true */
775 schUlSlotInfo->schPucchInfo.harqInfo.harqBitLength = 1; /* 1 bit for HARQ */
776 ADD_DELTA_TO_TIME(pucchTime, pucchTime, 3, cell->numSlots); /* SLOT_DELAY=3 */
777 cmLListAdd2Tail(&(ueCb->hqDlmap[pucchTime.slot]->hqList), &hqP->ulSlotLnk);
782 /*******************************************************************
784 * @brief Fills pdcch and pdsch info for dedicated DL msg
788 * Function : schDlRsrcAllocDlMsg
791 * Fills pdcch and pdsch info for dl msg
793 * @params[in] SchCellCb *cell, SlotTimingInfo slotTime
794 * @params[in] uint16_t crnti, uint32_t tbSize
795 * @params[in] DlMsgSchInfo *dlMsgAlloc, uint16_t startPRB
796 * @params[in] uint8_t pdschStartSymbol, uint8_t pdschNumSymbols
797 * @params[in] bool isRetx, SchDlHqProcCb *hqP
798 * @return ROK - success
801 * ****************************************************************/
802 uint8_t schDlRsrcAllocDlMsg(SchCellCb *cell, SlotTimingInfo slotTime, uint16_t crnti,
803 uint32_t tbSize, DlMsgSchInfo *dlMsgAlloc, uint16_t startPRB, uint8_t pdschStartSymbol,
804 uint8_t pdschNumSymbols, bool isRetx, SchDlHqProcCb *hqP)
808 PdcchCfg *pdcch = NULLP;
809 PdschCfg *pdsch = NULLP;
812 SchControlRsrcSet coreset1;
813 SchPdschConfig pdschCfg;
814 uint8_t dmrsStartSymbol, startSymbol, numSymbol;
816 SCH_ALLOC(dlMsgAlloc->dlMsgPdcchCfg, sizeof(PdcchCfg));
817 if(!dlMsgAlloc->dlMsgPdcchCfg)
819 DU_LOG("\nERROR --> SCH : Memory allocation failed in schDlRsrcAllocDlMsg");
822 pdcch = dlMsgAlloc->dlMsgPdcchCfg;
823 bwp = &dlMsgAlloc->bwp;
825 GET_UE_ID(crnti, ueId);
826 ueCb = cell->ueCb[ueId-1];
827 coreset1 = ueCb.ueCfg.spCellCfg.servCellRecfg.initDlBwp.pdcchCfg.cRSetToAddModList[0];
828 pdschCfg = ueCb.ueCfg.spCellCfg.servCellRecfg.initDlBwp.pdschCfg;
831 bwp->freqAlloc.numPrb = MAX_NUM_RB;
832 bwp->freqAlloc.startPrb = 0;
833 bwp->subcarrierSpacing = cell->sib1SchCfg.bwp.subcarrierSpacing;
834 bwp->cyclicPrefix = cell->sib1SchCfg.bwp.cyclicPrefix;
836 /* fill the PDCCH PDU */
837 //Considering coreset1 also starts from same symbol as coreset0
838 pdcch->coresetCfg.startSymbolIndex = coresetIdxTable[0][3];
839 pdcch->coresetCfg.durationSymbols = coreset1.duration;
840 memcpy(pdcch->coresetCfg.freqDomainResource, coreset1.freqDomainRsrc, FREQ_DOM_RSRC_SIZE);
841 pdcch->coresetCfg.cceRegMappingType = coreset1.cceRegMappingType; /* non-interleaved */
842 pdcch->coresetCfg.regBundleSize = 6; /* must be 6 for non-interleaved */
843 pdcch->coresetCfg.interleaverSize = 0; /* NA for non-interleaved */
844 pdcch->coresetCfg.coreSetType = 1; /* non PBCH coreset */
845 //Considering number of RBs in coreset1 is same as coreset0
846 pdcch->coresetCfg.coreSetSize = coresetIdxTable[0][1];
847 pdcch->coresetCfg.shiftIndex = cell->cellCfg.phyCellId;
848 pdcch->coresetCfg.precoderGranularity = coreset1.precoderGranularity;
850 pdcch->dci.rnti = ueCb.crnti;
851 pdcch->dci.scramblingId = cell->cellCfg.phyCellId;
852 pdcch->dci.scramblingRnti = 0;
853 pdcch->dci.cceIndex = 0; /* 0-3 for UL and 4-7 for DL */
854 pdcch->dci.aggregLevel = 4;
855 pdcch->dci.beamPdcchInfo.numPrgs = 1;
856 pdcch->dci.beamPdcchInfo.prgSize = 1;
857 pdcch->dci.beamPdcchInfo.digBfInterfaces = 0;
858 pdcch->dci.beamPdcchInfo.prg[0].pmIdx = 0;
859 pdcch->dci.beamPdcchInfo.prg[0].beamIdx[0] = 0;
860 pdcch->dci.txPdcchPower.beta_pdcch_1_0 = 0;
861 pdcch->dci.txPdcchPower.powerControlOffsetSS = 0;
863 pdsch = &pdcch->dci.pdschCfg;
864 pdsch->pduBitmap = 0; /* PTRS and CBG params are excluded */
865 pdsch->rnti = ueCb.crnti;
867 pdsch->numCodewords = 1;
868 for(cwCount = 0; cwCount < pdsch->numCodewords; cwCount++)
870 pdsch->codeword[cwCount].targetCodeRate = 308;
871 pdsch->codeword[cwCount].qamModOrder = ueCb.ueCfg.dlModInfo.modOrder;
872 pdsch->codeword[cwCount].mcsIndex = ueCb.ueCfg.dlModInfo.mcsIndex;
873 pdsch->codeword[cwCount].mcsTable = ueCb.ueCfg.dlModInfo.mcsTable;
874 pdsch->codeword[cwCount].rvIndex = 0;
878 tbSize +=TX_PAYLOAD_HDR_LEN;
879 hqP->tbInfo[cwCount].tbSzReq = tbSize;
881 pdsch->codeword[cwCount].tbSize = tbSize;
883 pdsch->dataScramblingId = cell->cellCfg.phyCellId;
884 pdsch->numLayers = 1;
885 pdsch->transmissionScheme = 0;
887 pdsch->dmrs.dlDmrsSymbPos = DL_DMRS_SYMBOL_POS;
888 pdsch->dmrs.dmrsConfigType = 0; /* type-1 */
889 pdsch->dmrs.dlDmrsScramblingId = cell->cellCfg.phyCellId;
890 pdsch->dmrs.scid = 0;
891 pdsch->dmrs.numDmrsCdmGrpsNoData = 1;
892 pdsch->dmrs.dmrsPorts = 0;
893 pdsch->dmrs.mappingType = DMRS_MAP_TYPE_A; /* Setting to Type-A */
894 pdsch->dmrs.nrOfDmrsSymbols = NUM_DMRS_SYMBOLS;
895 pdsch->dmrs.dmrsAddPos = pdschCfg.dmrsDlCfgForPdschMapTypeA.addPos;
897 pdsch->pdschTimeAlloc.startSymb = pdschStartSymbol;
898 pdsch->pdschTimeAlloc.numSymb = pdschNumSymbols;
900 pdsch->pdschFreqAlloc.vrbPrbMapping = 0; /* non-interleaved */
901 pdsch->pdschFreqAlloc.resourceAllocType = 1; /* RAT type-1 RIV format */
902 pdsch->pdschFreqAlloc.startPrb = startPRB; /*Start PRB will be already known*/
903 pdsch->pdschFreqAlloc.numPrb = schCalcNumPrb(tbSize, ueCb.ueCfg.dlModInfo.mcsIndex, pdschNumSymbols);
905 /* Find total symbols occupied including DMRS */
906 dmrsStartSymbol = findDmrsStartSymbol(pdsch->dmrs.dlDmrsSymbPos);
907 /* If there are no DRMS symbols, findDmrsStartSymbol() returns MAX_SYMB_PER_SLOT,
908 * in that case only PDSCH symbols are marked as occupied */
909 if(dmrsStartSymbol == MAX_SYMB_PER_SLOT)
911 startSymbol = pdsch->pdschTimeAlloc.startSymb;
912 numSymbol = pdsch->pdschTimeAlloc.numSymb;
914 /* If DMRS symbol is found, mark DMRS and PDSCH symbols as occupied */
917 startSymbol = dmrsStartSymbol;
918 numSymbol = pdsch->dmrs.nrOfDmrsSymbols + pdsch->pdschTimeAlloc.numSymb;
921 /* Allocate the number of PRBs required for DL PDSCH */
922 if((allocatePrbDl(cell, slotTime, startSymbol, numSymbol,\
923 &pdsch->pdschFreqAlloc.startPrb, pdsch->pdschFreqAlloc.numPrb)) != ROK)
925 DU_LOG("\nERROR --> SCH : allocatePrbDl() failed for DL MSG");
926 SCH_FREE(dlMsgAlloc->dlMsgPdcchCfg, sizeof(PdcchCfg));
930 pdsch->beamPdschInfo.numPrgs = 1;
931 pdsch->beamPdschInfo.prgSize = 1;
932 pdsch->beamPdschInfo.digBfInterfaces = 0;
933 pdsch->beamPdschInfo.prg[0].pmIdx = 0;
934 pdsch->beamPdschInfo.prg[0].beamIdx[0] = 0;
935 pdsch->txPdschPower.powerControlOffset = 0;
936 pdsch->txPdschPower.powerControlOffsetSS = 0;
941 /*******************************************************************
943 * @brief Fills k0 and k1 information table for FDD
947 * Function : BuildK0K1TableForFdd
950 * Fills k0 and k1 information table for FDD
952 * @params[in] SchCellCb *cell,SchK0K1TimingInfoTbl *k0K1InfoTbl,bool
953 * pdschCfgCmnPres,uint8_t numTimeDomAlloc, SchPdschCfgCmnTimeDomRsrcAlloc
954 * cmnTimeDomRsrcAllocList[], SchPdschTimeDomRsrcAlloc
955 * dedTimeDomRsrcAllocList[], uint8_t ulAckListCount, uint8_t *UlAckTbl
956 * @return ROK - success
959 * ****************************************************************/
960 void BuildK0K1TableForFdd(SchCellCb *cell, SchK0K1TimingInfoTbl *k0K1InfoTbl, bool pdschCfgCmnPres,SchPdschCfgCmn pdschCmnCfg,\
961 SchPdschConfig pdschDedCfg, uint8_t ulAckListCount, uint8_t *UlAckTbl)
964 uint8_t k1TmpVal =0, cfgIdx=0;
965 uint8_t slotIdx=0, k0Index=0, k1Index=0, numK0=0, numK1=0, numTimeDomAlloc=0;
967 /* TODO Commented these below lines for resolving warnings. Presently these variable are not
968 * required but this will require for harq processing */
969 // uint8_t k0TmpVal = 0;
970 // SchPdschCfgCmnTimeDomRsrcAlloc cmnTimeDomRsrcAllocList[MAX_NUM_DL_ALLOC];
971 // SchPdschTimeDomRsrcAlloc dedTimeDomRsrcAllocList[MAX_NUM_DL_ALLOC];
973 /* Initialization the structure and storing the total slot values. */
974 memset(k0K1InfoTbl, 0, sizeof(SchK0K1TimingInfoTbl));
975 k0K1InfoTbl->tblSize = cell->numSlots;
977 /* Storing time domain resource allocation list based on common or dedicated configuration. */
978 if(pdschCfgCmnPres == true)
980 numTimeDomAlloc = pdschCmnCfg.numTimeDomAlloc;
981 for(cfgIdx = 0; cfgIdx<numTimeDomAlloc; cfgIdx++)
983 /*TODO uncomment this line during harq processing */
984 //cmnTimeDomRsrcAllocList[cfgIdx] = pdschCmnCfg.timeDomRsrcAllocList[cfgIdx];
989 numTimeDomAlloc = pdschDedCfg.numTimeDomRsrcAlloc;
990 for(cfgIdx = 0; cfgIdx<numTimeDomAlloc; cfgIdx++)
992 /*TODO uncomment this line during harq processing */
993 //dedTimeDomRsrcAllocList[cfgIdx] = pdschDedCfg.timeDomRsrcAllociList[cfgIdx];
997 /* Checking all the slots for K0 and K1 values. */
998 for(slotIdx = 0; slotIdx < cell->numSlots; slotIdx++)
1001 /* Storing the values of k0 based on time domain resource
1002 * allocation list. If the value is unavailable then fill default values,
1003 * As per 38.331 PDSCH-TimeDomainResourceAllocation field descriptions. */
1004 for(k0Index = 0; ((k0Index < numTimeDomAlloc) && (k0Index < MAX_NUM_K0_IDX)); k0Index++)
1006 /* TODO These if 0 we will remove during harq processing */
1008 if(pdschCfgCmnPres == true)
1010 k0TmpVal = cmnTimeDomRsrcAllocList[k0Index].k0;
1014 if(dedTimeDomRsrcAllocList[k0Index].k0 != NULLP)
1016 k0TmpVal = *(dedTimeDomRsrcAllocList[k0Index].k0);
1020 k0TmpVal = DEFAULT_K0_VALUE;
1024 /* Checking all the Ul Alloc values. If value is less than MIN_NUM_K1_IDX
1025 * then skip else continue storing the values. */
1027 for(k1Index = 0; k1Index < ulAckListCount; k1Index++)
1029 k1TmpVal = UlAckTbl[k1Index];
1030 if(k1TmpVal <= MIN_NUM_K1_IDX)
1035 k0K1InfoTbl->k0k1TimingInfo[slotIdx].k0Indexes[numK0].k1TimingInfo.k1Indexes[numK1++] = k1Index;
1036 /* TODO Store K1 index where harq feedback will be received in harq table. */
1040 k0K1InfoTbl->k0k1TimingInfo[slotIdx].k0Indexes[numK0].k1TimingInfo.numK1 = numK1;
1041 k0K1InfoTbl->k0k1TimingInfo[slotIdx].k0Indexes[numK0].k0Index = k0Index;
1047 k0K1InfoTbl->k0k1TimingInfo[slotIdx].numK0 = numK0;
1052 /*******************************************************************
1054 * @brief Fills k0 and k1 information table
1058 * Function : BuildK0K1Table
1061 * Fills K0 and k1 information table
1063 * @params[in] SchCellCb *cell,SchK0K1TimingInfoTbl *k0K1InfoTbl,bool
1064 * pdschCfgCmnPres,uint8_t numTimeDomAlloc, SchPdschCfgCmnTimeDomRsrcAlloc
1065 * cmnTimeDomRsrcAllocList[], SchPdschTimeDomRsrcAlloc
1066 * dedTimeDomRsrcAllocList[], uint8_t ulAckListCount, uint8_t *UlAckTbl
1067 * @return ROK - success
1070 * ****************************************************************/
1071 void BuildK0K1Table(SchCellCb *cell, SchK0K1TimingInfoTbl *k0K1InfoTbl, bool pdschCfgCmnPres, SchPdschCfgCmn pdschCmnCfg,\
1072 SchPdschConfig pdschDedCfg, uint8_t ulAckListCount, uint8_t *UlAckTbl)
1077 bool ulSlotPresent = false;
1078 uint8_t k0TmpVal = 0, k1TmpVal =0, tmpSlot=0, startSymbol=0, endSymbol=0, checkSymbol=0;
1079 uint8_t slotIdx=0, k0Index=0, k1Index=0, numK0=0, numK1=0, cfgIdx=0, numTimeDomAlloc =0, totalCfgSlot =0;
1080 SchPdschCfgCmnTimeDomRsrcAlloc cmnTimeDomRsrcAllocList[MAX_NUM_DL_ALLOC];
1081 SchPdschTimeDomRsrcAlloc dedTimeDomRsrcAllocList[MAX_NUM_DL_ALLOC];
1084 if(cell->cellCfg.dupMode == DUPLEX_MODE_FDD)
1086 BuildK0K1TableForFdd(cell, k0K1InfoTbl, pdschCfgCmnPres, pdschCmnCfg, pdschDedCfg, ulAckListCount, UlAckTbl);
1092 /* Initialization the K0K1 structure, total num of slot and calculating the slot pattern length. */
1093 memset(k0K1InfoTbl, 0, sizeof(SchK0K1TimingInfoTbl));
1094 k0K1InfoTbl->tblSize = cell->numSlots;
1095 totalCfgSlot = calculateSlotPatternLength(cell->cellCfg.scsCommon, cell->cellCfg.tddCfg.tddPeriod);
1097 /* Storing time domain resource allocation list based on common or
1098 * dedicated configuration availability. */
1099 if(pdschCfgCmnPres == true)
1101 numTimeDomAlloc = pdschCmnCfg.numTimeDomAlloc;
1102 for(cfgIdx = 0; cfgIdx<numTimeDomAlloc; cfgIdx++)
1104 cmnTimeDomRsrcAllocList[cfgIdx] = pdschCmnCfg.timeDomRsrcAllocList[cfgIdx];
1109 numTimeDomAlloc = pdschDedCfg.numTimeDomRsrcAlloc;
1110 for(cfgIdx = 0; cfgIdx<numTimeDomAlloc; cfgIdx++)
1112 dedTimeDomRsrcAllocList[cfgIdx] = pdschDedCfg.timeDomRsrcAllociList[cfgIdx];
1116 /* Checking all possible indexes for K0 and K1 values. */
1117 for(slotIdx = 0; slotIdx < cell->numSlots; slotIdx++)
1119 /* If current slot is UL or FLEXI then Skip because PDCCH is sent only in DL slots. */
1120 slotCfg = schGetSlotSymbFrmt(slotIdx%totalCfgSlot, cell->slotFrmtBitMap);
1121 if(slotCfg == UL_SLOT || slotCfg == FLEXI_SLOT)
1126 ulSlotPresent = false;
1127 /* Storing K0 , start symbol and length symbol for further processing.
1128 * If K0 value is not available then we can fill the default values
1129 * given in spec 38.331. */
1131 for(k0Index = 0; ((k0Index < numTimeDomAlloc) && (k0Index < MAX_NUM_K0_IDX)); k0Index++)
1133 if(pdschCfgCmnPres == true)
1135 k0TmpVal = cmnTimeDomRsrcAllocList[k0Index].k0;
1136 startSymbol = cmnTimeDomRsrcAllocList[k0Index].startSymbol;
1137 endSymbol = startSymbol + cmnTimeDomRsrcAllocList[k0Index].lengthSymbol;
1141 if(dedTimeDomRsrcAllocList[k0Index].k0 != NULLP)
1143 k0TmpVal = *(dedTimeDomRsrcAllocList[k0Index].k0);
1147 k0TmpVal = DEFAULT_K0_VALUE;
1149 startSymbol = dedTimeDomRsrcAllocList[k0Index].startSymbol;
1150 endSymbol = startSymbol + dedTimeDomRsrcAllocList[k0Index].symbolLength;
1153 /* If current slot + k0 is UL then skip the slot
1154 * else if it is DL slot then continue the next steps
1155 * else if it is a FLEXI slot then check symbols of slot, It should not
1156 * contain any UL slot. */
1157 tmpSlot = (slotIdx+k0TmpVal) % totalCfgSlot;
1158 slotCfg = schGetSlotSymbFrmt(tmpSlot, cell->slotFrmtBitMap);
1159 if(slotCfg == UL_SLOT)
1163 if(slotCfg == FLEXI_SLOT)
1165 for(checkSymbol = startSymbol; checkSymbol<endSymbol; checkSymbol ++)
1167 slotCfg = cell->slotCfg[tmpSlot][checkSymbol];
1168 if(slotCfg == UL_SLOT)
1170 ulSlotPresent = true;
1174 if(ulSlotPresent == true)
1180 ulSlotPresent = false; //Re-initializing
1182 /* If current slot + k0 + k1 is a DL slot then skip the slot
1183 * else if it is UL slot then store the information
1184 * else if it is FLEXI slot then check the symbols, it must have
1185 * at least one UL symbol. */
1187 for(k1Index = 0; k1Index < ulAckListCount; k1Index++)
1189 k1TmpVal = UlAckTbl[k1Index];
1190 if(k1TmpVal > MIN_NUM_K1_IDX)
1192 tmpSlot = (slotIdx+k0TmpVal+k1TmpVal) % totalCfgSlot;
1193 slotCfg = schGetSlotSymbFrmt(tmpSlot, cell->slotFrmtBitMap);
1194 if(slotCfg == DL_SLOT)
1198 if(slotCfg == FLEXI_SLOT)
1200 for(checkSymbol = 0; checkSymbol< MAX_SYMB_PER_SLOT;checkSymbol++)
1202 if(cell->slotCfg[tmpSlot][checkSymbol] == UL_SYMBOL)
1204 ulSlotPresent = true;
1209 if(ulSlotPresent == true || slotCfg == UL_SLOT)
1211 k0K1InfoTbl->k0k1TimingInfo[slotIdx].k0Indexes[numK0].k1TimingInfo.k1Indexes[numK1++] = k1Index;
1212 /* TODO Store K1 index where harq feedback will be received
1218 /* Store all the values if all condition satisfies. */
1221 k0K1InfoTbl->k0k1TimingInfo[slotIdx].k0Indexes[numK0].k1TimingInfo.numK1 = numK1;
1222 k0K1InfoTbl->k0k1TimingInfo[slotIdx].k0Indexes[numK0].k0Index = k0Index;
1228 k0K1InfoTbl->k0k1TimingInfo[slotIdx].numK0 = numK0;
1235 /*******************************************************************
1237 * @brief Fills K2 information table for FDD
1241 * Function : BuildK2InfoTableForFdd
1244 * Fills K2 information table for FDD
1246 * @params[in] SchCellCb *cell,SchPuschTimeDomRsrcAlloc timeDomRsrcAllocList[],
1247 * uint16_t puschSymTblSize,SchK2TimingInfoTbl *k2InfoTbl
1248 * @return ROK - success
1251 * ****************************************************************/
1252 void BuildK2InfoTableForFdd(SchCellCb *cell, SchPuschTimeDomRsrcAlloc timeDomRsrcAllocList[], uint16_t puschSymTblSize,\
1253 SchK2TimingInfoTbl *msg3K2InfoTbl, SchK2TimingInfoTbl *k2InfoTbl)
1255 uint16_t slotIdx=0, k2Index=0, k2TmpIdx=0, msg3K2TmpIdx=0;
1257 /* Initialization the structure and storing the total slot values. */
1258 memset(k2InfoTbl, 0, sizeof(SchK2TimingInfoTbl));
1259 k2InfoTbl->tblSize = cell->numSlots;
1261 msg3K2InfoTbl->tblSize = cell->numSlots;
1263 /* Checking all possible indexes for K2. */
1264 for(slotIdx = 0; slotIdx < cell->numSlots; slotIdx++)
1266 /* Storing K2 values. */
1267 for(k2Index = 0; ((k2Index < puschSymTblSize) && (k2Index < MAX_NUM_K2_IDX)); k2Index++)
1269 k2TmpIdx= k2InfoTbl->k2TimingInfo[slotIdx].numK2;
1270 k2InfoTbl->k2TimingInfo[slotIdx].k2Indexes[k2TmpIdx] = k2Index;
1271 k2InfoTbl->k2TimingInfo[slotIdx].numK2++;
1273 /* Updating K2 values for MSG3 */
1276 msg3K2TmpIdx = msg3K2InfoTbl->k2TimingInfo[slotIdx].numK2;
1277 msg3K2InfoTbl->k2TimingInfo[slotIdx].k2Indexes[msg3K2TmpIdx] = k2Index;
1278 msg3K2InfoTbl->k2TimingInfo[slotIdx].numK2++;
1284 /*******************************************************************
1286 * @brief Fills K2 information table
1290 * Function : BuildK2InfoTable
1293 * Fills K2 information table
1295 * @params[in] SchCellCb *cell,SchPuschTimeDomRsrcAlloc timeDomRsrcAllocList[],
1296 * uint16_t puschSymTblSize, SchK2TimingInfoTbl *k2InfoTbl
1297 * @return ROK - success
1300 * ****************************************************************/
1301 void BuildK2InfoTable(SchCellCb *cell, SchPuschTimeDomRsrcAlloc timeDomRsrcAllocList[], uint16_t puschSymTblSize,\
1302 SchK2TimingInfoTbl *msg3K2InfoTbl, SchK2TimingInfoTbl *k2InfoTbl)
1306 bool dlSymbolPresent = false;
1307 uint8_t slotIdx=0, k2Index=0, k2Val=0, k2TmpVal=0, msg3K2TmpVal=0, msg3Delta=0, numK2 =0, currentSymbol =0;
1308 uint8_t startSymbol =0, endSymbol =0, checkSymbol=0, totalCfgSlot=0, slotCfg=0;
1309 SlotConfig currentSlot;
1312 if(cell->cellCfg.dupMode == DUPLEX_MODE_FDD)
1314 BuildK2InfoTableForFdd(cell, timeDomRsrcAllocList, puschSymTblSize, msg3K2InfoTbl, k2InfoTbl);
1320 /* Initialization the structure and storing the total slot values. */
1321 memset(k2InfoTbl, 0, sizeof(SchK2TimingInfoTbl));
1322 k2InfoTbl->tblSize = cell->numSlots;
1324 msg3K2InfoTbl->tblSize = cell->numSlots;
1325 totalCfgSlot = calculateSlotPatternLength(cell->cellCfg.scsCommon, cell->cellCfg.tddCfg.tddPeriod);
1327 /* Checking all possible indexes for K2. */
1328 for(slotIdx = 0; slotIdx < cell->numSlots; slotIdx++)
1330 currentSlot = schGetSlotSymbFrmt(slotIdx % totalCfgSlot, cell->slotFrmtBitMap);
1332 /* If current slot is UL then skip because PDCCH is sent only in DL slots */
1333 if(currentSlot != UL_SLOT)
1335 for(k2Index = 0; ((k2Index < puschSymTblSize) && (k2Index < MAX_NUM_K2_IDX)); k2Index++)
1337 /* Storing k2, startSymbol, endSymbol information for further processing.
1338 * If k2 is absent then fill the default values given in spec 38.331
1339 * PUSCH-TimeDomainResourceAllocationList field descriptions */
1340 k2Val = timeDomRsrcAllocList[k2Index].k2;
1343 switch(cell->cellCfg.scsCommon)
1346 k2Val = DEFAULT_K2_VALUE_FOR_SCS15;
1349 k2Val = DEFAULT_K2_VALUE_FOR_SCS30;
1352 k2Val = DEFAULT_K2_VALUE_FOR_SCS60;
1355 k2Val = DEFAULT_K2_VALUE_FOR_SCS120;
1360 /* Current slot + k2 should be either UL or FLEXI slot.
1361 * If slot is FLEXI then check all the symbols of that slot,
1362 * it should not contain any DL or FLEXI slot */
1363 k2TmpVal = (slotIdx + k2Val) % totalCfgSlot;
1364 slotCfg = schGetSlotSymbFrmt(k2TmpVal, cell->slotFrmtBitMap);
1365 if(slotCfg != DL_SLOT)
1367 if(slotCfg == FLEXI_SLOT)
1369 startSymbol = timeDomRsrcAllocList[k2Index].startSymbol;
1370 endSymbol = startSymbol+ timeDomRsrcAllocList[k2Index].symbolLength;
1371 dlSymbolPresent = false;
1372 for(checkSymbol= startSymbol; checkSymbol<endSymbol; checkSymbol++)
1374 currentSymbol = cell->slotCfg[k2TmpVal][checkSymbol];
1375 if(currentSymbol == DL_SLOT || currentSymbol == FLEXI_SLOT)
1377 dlSymbolPresent = true;
1382 /* Store all the values if all condition satisfies. */
1383 if(dlSymbolPresent != true || slotCfg == UL_SLOT)
1385 numK2 = k2InfoTbl->k2TimingInfo[slotIdx].numK2;
1386 k2InfoTbl->k2TimingInfo[slotIdx].k2Indexes[numK2] = k2Index;
1387 k2InfoTbl->k2TimingInfo[slotIdx].numK2++;
1393 msg3Delta = puschDeltaTable[cell->cellCfg.numerology];
1395 /* Check for K2 for MSG3 */
1396 /* Current slot + k2 should be either UL or FLEXI slot.
1397 * If slot is FLEXI then check all the symbols of that slot,
1398 * it should not contain any DL or FLEXI slot */
1399 msg3K2TmpVal = (slotIdx + k2Val + msg3Delta) % totalCfgSlot;
1400 slotCfg = schGetSlotSymbFrmt(msg3K2TmpVal, cell->slotFrmtBitMap);
1401 if(slotCfg != DL_SLOT)
1403 if(slotCfg == FLEXI_SLOT)
1405 startSymbol = timeDomRsrcAllocList[k2Index].startSymbol;
1406 endSymbol = startSymbol+ timeDomRsrcAllocList[k2Index].symbolLength;
1407 dlSymbolPresent = false;
1408 for(checkSymbol= startSymbol; checkSymbol<endSymbol; checkSymbol++)
1410 currentSymbol = cell->slotCfg[msg3K2TmpVal][checkSymbol];
1411 if(currentSymbol == DL_SLOT || currentSymbol == FLEXI_SLOT)
1413 dlSymbolPresent = true;
1418 /* Store all the values if all condition satisfies. */
1419 if(dlSymbolPresent != true || slotCfg == UL_SLOT)
1421 numK2 = msg3K2InfoTbl->k2TimingInfo[slotIdx].numK2;
1422 msg3K2InfoTbl->k2TimingInfo[slotIdx].k2Indexes[numK2] = k2Index;
1423 msg3K2InfoTbl->k2TimingInfo[slotIdx].numK2++;
1434 /*******************************************************************************************
1436 * @brief Allocate the PRB using RRM policy
1440 * Function : prbAllocUsingRRMPolicy
1443 * [Step1]: Traverse each Node in the LC list
1444 * [Step2]: Check whether the LC has ZERO requirement then clean this LC
1445 * [Step3]: Calcualte the maxPRB for this LC.
1446 * a. For Dedicated LC, maxPRB = sum of remainingReservedPRB and
1448 * b. For Default, just SharedPRB count
1449 * [Step4]: If the LC is the First one to be allocated for this UE then add
1450 * TX_PAYLODN_LEN to reqBO
1451 * [Step5]: Calculate the estimate PRB and estimate BO to be allocated
1452 * based on reqBO and maxPRB left.
1453 * [Step6]: Based on calculated PRB, Update Reserved PRB and Shared PRB counts
1454 * [Step7]: Deduce the reqBO based on allocBO and move the LC node to last.
1455 * [Step8]: Continue the next loop from List->head
1458 * [Exit1]: If all the LCs are allocated in list
1459 * [Exit2]: If PRBs are exhausted
1461 * @params[in] I/P > lcLinkList pointer (LcInfo list)
1462 * I/P > IsDedicatedPRB (Flag to indicate that RESERVED PRB to use
1463 * I/P > mcsIdx and PDSCH symbols count
1464 * I/P & O/P > Shared PRB , reserved PRB Count
1465 * I/P & O/P > Total TBS size accumulated
1466 * I/P & O/P > isTxPayloadLenAdded[For DL] : Decision flag to add the TX_PAYLOAD_HDR_LEN
1467 * I/P & O/P > srRcvd Flag[For UL] : Decision flag to add UL_GRANT_SIZE
1471 * *******************************************************************************************/
1472 void prbAllocUsingRRMPolicy(CmLListCp *lcLL, bool isDedicatedPRB, uint16_t mcsIdx,uint8_t numSymbols,\
1473 uint16_t *sharedPRB, uint16_t *reservedPRB, bool *isTxPayloadLenAdded, bool *srRcvd)
1475 CmLList *node = NULLP;
1476 LcInfo *lcNode = NULLP;
1477 uint16_t remReservedPRB = 0, estPrb = 0, maxPRB = 0;
1481 DU_LOG("\nERROR --> SCH: LcList not present");
1486 /*Only for Dedicated LcList, Valid value will be assigned to remReservedPRB
1487 * For Other LcList, remReservedPRB = 0*/
1488 if(reservedPRB != NULLP && isDedicatedPRB == TRUE)
1490 remReservedPRB = *reservedPRB;
1497 /*For Debugging purpose*/
1500 lcNode = (LcInfo *)node->node;
1502 /* [Step2]: Below condition will hit in rare case as it has been taken care during the cleaning
1503 * process of LCID which was fully allocated. Check is just for safety purpose*/
1504 if(lcNode->reqBO == 0 && lcNode->allocBO == 0)
1506 DU_LOG("\nERROR --> SCH: LCID:%d has no requirement, clearing this node",\
1508 deleteNodeFromLList(lcLL, node);
1509 SCH_FREE(lcNode, sizeof(LcInfo));
1514 /*[Exit1]: All LCs are allocated(allocBO = 0 for fully unallocated LC)*/
1515 if(lcNode->allocBO != 0)
1517 DU_LOG("\nDEBUG --> SCH: All LC are allocated [SharedPRB:%d]",*sharedPRB);
1521 /*[Exit2]: If PRBs are exhausted*/
1524 /*Loop Exit: All resources exhausted*/
1525 if(remReservedPRB == 0 && *sharedPRB == 0)
1527 DU_LOG("\nDEBUG --> SCH: Dedicated resources exhausted for LC:%d",lcNode->lcId);
1533 /*Loop Exit: All resources exhausted*/
1536 DU_LOG("\nDEBUG --> SCH: Default resources exhausted for LC:%d",lcNode->lcId);
1542 maxPRB = remReservedPRB + *sharedPRB;
1545 if((isTxPayloadLenAdded != NULLP) && (*isTxPayloadLenAdded == FALSE))
1547 DU_LOG("\nDEBUG --> SCH: LC:%d is the First node to be allocated which includes TX_PAYLOAD_HDR_LEN",\
1549 *isTxPayloadLenAdded = TRUE;
1550 lcNode->allocBO = calculateEstimateTBSize((lcNode->reqBO + TX_PAYLOAD_HDR_LEN),\
1551 mcsIdx, numSymbols, maxPRB, &estPrb);
1552 lcNode->allocBO -=TX_PAYLOAD_HDR_LEN;
1554 else if((srRcvd != NULLP) && (*srRcvd == TRUE))
1556 DU_LOG("\nDEBUG --> SCH: LC:%d is the First node to be allocated which includes UL_GRANT_SIZE",\
1559 lcNode->reqBO += UL_GRANT_SIZE;
1560 lcNode->allocBO = calculateEstimateTBSize(lcNode->reqBO, mcsIdx, numSymbols, maxPRB, &estPrb);
1565 lcNode->allocBO = calculateEstimateTBSize(lcNode->reqBO,\
1566 mcsIdx, numSymbols, maxPRB, &estPrb);
1569 /*[Step6]:Re-adjust the reservedPRB pool count and *SharedPRB Count based on
1570 * estimated PRB allocated*/
1571 if((isDedicatedPRB == TRUE) && (estPrb <= remReservedPRB))
1573 remReservedPRB = remReservedPRB - estPrb;
1575 else /*LC requirement need PRB share from SharedPRB*/
1577 if(*sharedPRB <= (estPrb - remReservedPRB))
1579 DU_LOG("\nDEBUG --> SCH: SharedPRB is less");
1584 *sharedPRB = *sharedPRB - (estPrb - remReservedPRB);
1590 lcNode->reqBO -= lcNode->allocBO; /*Update the reqBO with remaining bytes unallocated*/
1591 lcNode->allocPRB = estPrb;
1592 cmLListAdd2Tail(lcLL, cmLListDelFrm(lcLL, node));
1594 /*[Step8]:Next loop: First LC to be picked from the list
1595 * because Allocated Nodes are moved to the last*/
1602 /*******************************************************************************************
1604 * @brief Check the LC List and fill the LC and GrantSize to be sent to MAC as
1609 * Function : updateGrantSizeForBoRpt
1612 * Check the LC List and fill the LC and GrantSize to be sent to MAC as
1613 * BO Report in dlMsgAlloc Pointer
1615 * @params[in] I/P > lcLinkList pointer (LcInfo list)
1616 * I/P & O/P > dlMsgAlloc[for DL](Pending LC to be added in this context)
1617 * I/P & O/P > BsrInfo (applicable for UL)
1618 * I/P & O/P > accumalatedBOSize
1621 * *******************************************************************************************/
1622 void updateGrantSizeForBoRpt(CmLListCp *lcLL, DlMsgSchInfo *dlMsgAlloc,\
1623 BsrInfo *bsrInfo, uint32_t *accumalatedBOSize)
1625 CmLList *node = NULLP, *next = NULLP;
1626 LcInfo *lcNode = NULLP;
1630 DU_LOG("\nERROR --> SCH: LcList not present");
1648 lcNode = (LcInfo *)node->node;
1651 DU_LOG("\nINFO --> SCH : LcID:%d, [reqBO, allocBO, allocPRB]:[%d,%d,%d]",\
1652 lcNode->lcId, lcNode->reqBO, lcNode->allocBO, lcNode->allocPRB);
1653 if(dlMsgAlloc != NULLP)
1656 /*Add this LC to dlMsgAlloc so that if this LC gets allocated, BO
1657 * report for allocation can be sent to MAC*/
1658 dlMsgAlloc->numOfTbs = 1;
1659 dlMsgAlloc->transportBlock[0].lcSchInfo[dlMsgAlloc->transportBlock[0].numLc].lcId = lcNode->lcId;
1660 dlMsgAlloc->transportBlock[0].lcSchInfo[dlMsgAlloc->transportBlock[0].numLc].schBytes = lcNode->allocBO;
1662 /*Calculate the Total Payload/BO size allocated*/
1663 *accumalatedBOSize += dlMsgAlloc->transportBlock[0].lcSchInfo[dlMsgAlloc->transportBlock[0].numLc].schBytes;
1665 DU_LOG("\nINFO --> SCH: Added in MAC BO report: LCID:%d,reqBO:%d,Idx:%d, TotalBO Size:%d",\
1666 lcNode->lcId,lcNode->reqBO, dlMsgAlloc->transportBlock[0].numLc, *accumalatedBOSize);
1668 dlMsgAlloc->transportBlock[0].numLc++;
1669 handleLcLList(lcLL, lcNode->lcId, DELETE);
1671 else if(bsrInfo != NULLP)
1673 *accumalatedBOSize += lcNode->allocBO;
1674 DU_LOG("\nINFO --> SCH: UL : LCID:%d,reqBO:%d, TotalBO Size:%d",\
1675 lcNode->lcId,lcNode->reqBO, *accumalatedBOSize);
1683 /*******************************************************************
1685 * @brief fill DL message information for MSG4 and Dedicated DL Msg
1689 * Function : fillDlMsgInfo
1692 * fill DL message information for MSG4 and Dedicated DL Msg
1694 * @params[in] DlMsgInfo *dlMsgInfo, uint8_t crnti
1695 * @params[in] bool isRetx, SchDlHqProcCb *hqP
1698 *******************************************************************/
1699 void fillDlMsgInfo(DlMsgSchInfo *dlMsgSchInfo, uint8_t crnti, bool isRetx, SchDlHqProcCb *hqP)
1701 hqP->tbInfo[0].isEnabled = TRUE;
1702 hqP->tbInfo[0].state = HQ_TB_WAITING;
1703 hqP->tbInfo[0].txCntr++;
1704 hqP->tbInfo[1].isEnabled = TRUE;
1705 hqP->tbInfo[1].state = HQ_TB_WAITING;
1706 hqP->tbInfo[1].txCntr++;
1707 dlMsgSchInfo->crnti = crnti;
1708 dlMsgSchInfo->transportBlock[0].ndi = hqP->tbInfo[0].ndi; /*How to handle two tb case?TBD*/
1709 dlMsgSchInfo->harqProcNum = hqP->procId;
1710 dlMsgSchInfo->dlAssignIdx = 0;
1711 dlMsgSchInfo->pucchTpc = 0;
1712 dlMsgSchInfo->pucchResInd = 0;
1713 dlMsgSchInfo->harqFeedbackInd = hqP->k1;
1714 dlMsgSchInfo->dciFormatId = 1;
1717 /*******************************************************************
1719 * @brief sch Process pending Msg4 Req
1723 * Function : schProcessMsg4Req
1726 * sch Process pending Msg4 Req
1728 * @params[in] SchCellCb *cell, cell cb struct pointer
1729 * @params[in] SlotTimingInfo currTime, current timing info
1730 * @params[in] uint8_t ueId, ue ID
1731 * @params[in] bool isRetxMsg4, indicator to MSG4 retransmission
1732 * @params[in] SchDlHqProcCb **msg4HqProc, address of MSG4 HARQ proc pointer
1733 * @return ROK - success
1736 *******************************************************************/
1738 uint8_t schProcessMsg4Req(SchCellCb *cell, SlotTimingInfo currTime, uint8_t ueId, bool isRetxMsg4, SchDlHqProcCb **msg4HqProc)
1740 uint8_t pdschStartSymbol = 0, pdschNumSymbols = 0;
1741 SlotTimingInfo pdcchTime, pdschTime, pucchTime;
1742 DlMsgSchInfo *dciSlotAlloc = NULLP; /* Stores info for transmission of PDCCH for Msg4 */
1743 DlMsgSchInfo *msg4SlotAlloc = NULLP; /* Stores info for transmission of PDSCH for Msg4 */
1747 DU_LOG("\nERROR --> SCH: schProcessMsg4Req() : Cell is NULL");
1751 if (isRetxMsg4 == FALSE)
1753 if (RFAILED == schDlGetAvlHqProcess(cell, &cell->ueCb[ueId - 1], msg4HqProc))
1755 DU_LOG("\nERROR --> SCH: schProcessMsg4Req() : No process");
1760 if(findValidK0K1Value(cell, currTime, ueId, false, &pdschStartSymbol, &pdschNumSymbols, &pdcchTime, &pdschTime,\
1761 &pucchTime, isRetxMsg4, *msg4HqProc) != true )
1763 DU_LOG("\nERROR --> SCH: schProcessMsg4Req() : k0 k1 not found");
1767 if(cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId-1] == NULL)
1769 SCH_ALLOC(dciSlotAlloc, sizeof(DlMsgSchInfo));
1770 if(dciSlotAlloc == NULLP)
1772 DU_LOG("\nERROR --> SCH : Memory Allocation failed for dciSlotAlloc");
1775 cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId-1] = dciSlotAlloc;
1776 memset(dciSlotAlloc, 0, sizeof(DlMsgSchInfo));
1779 dciSlotAlloc = cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId-1];
1781 /* Fill PDCCH and PDSCH scheduling information for Msg4 */
1782 if((schDlRsrcAllocMsg4(cell, pdschTime, ueId, dciSlotAlloc, pdschStartSymbol, pdschNumSymbols, isRetxMsg4, *msg4HqProc)) != ROK)
1784 DU_LOG("\nERROR --> SCH: Scheduling of Msg4 failed in slot [%d]", pdschTime.slot);
1785 if(!dciSlotAlloc->dlMsgPdschCfg)
1787 SCH_FREE(dciSlotAlloc, sizeof(DlMsgSchInfo));
1788 cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId-1] = NULLP;
1793 /* Check if both DCI and RAR are sent in the same slot.
1794 * If not, allocate memory RAR PDSCH slot to store RAR info
1796 if(pdcchTime.slot == pdschTime.slot)
1798 SCH_ALLOC(dciSlotAlloc->dlMsgPdschCfg, sizeof(PdschCfg));
1799 if(!dciSlotAlloc->dlMsgPdschCfg)
1801 DU_LOG("\nERROR --> SCH : Memory Allocation failed for dciSlotAlloc->dlMsgPdschCfg");
1802 SCH_FREE(dciSlotAlloc->dlMsgPdcchCfg, sizeof(PdcchCfg));
1803 SCH_FREE(dciSlotAlloc, sizeof(DlMsgSchInfo));
1804 cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId-1] = NULLP;
1807 memcpy(dciSlotAlloc->dlMsgPdschCfg, &dciSlotAlloc->dlMsgPdcchCfg->dci.pdschCfg, sizeof(PdschCfg));
1811 /* Allocate memory to schedule rarSlot to send RAR, pointer will be checked at schProcessSlotInd() */
1812 if(cell->schDlSlotInfo[pdschTime.slot]->dlMsgAlloc[ueId-1] == NULL)
1814 SCH_ALLOC(msg4SlotAlloc, sizeof(DlMsgSchInfo));
1815 if(msg4SlotAlloc == NULLP)
1817 DU_LOG("\nERROR --> SCH : Memory Allocation failed for msg4SlotAlloc");
1818 SCH_FREE(dciSlotAlloc->dlMsgPdcchCfg, sizeof(PdcchCfg));
1819 if(!dciSlotAlloc->dlMsgPdschCfg)
1821 SCH_FREE(dciSlotAlloc, sizeof(DlMsgSchInfo));
1822 cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId-1] = NULLP;
1826 cell->schDlSlotInfo[pdschTime.slot]->dlMsgAlloc[ueId-1] = msg4SlotAlloc;
1827 memset(msg4SlotAlloc, 0, sizeof(DlMsgSchInfo));
1830 msg4SlotAlloc = cell->schDlSlotInfo[pdschTime.slot]->dlMsgAlloc[ueId-1];
1832 /* Copy all msg4 pdschcfg info */
1833 msg4SlotAlloc->crnti =dciSlotAlloc->crnti;
1834 msg4SlotAlloc->bwp = dciSlotAlloc->bwp;
1835 SCH_ALLOC(msg4SlotAlloc->dlMsgPdschCfg, sizeof(PdschCfg));
1836 if(msg4SlotAlloc->dlMsgPdschCfg)
1838 memcpy(msg4SlotAlloc->dlMsgPdschCfg, &dciSlotAlloc->dlMsgPdcchCfg->dci.pdschCfg, sizeof(PdschCfg));
1842 SCH_FREE(dciSlotAlloc->dlMsgPdcchCfg, sizeof(PdcchCfg));
1843 if(dciSlotAlloc->dlMsgPdschCfg == NULLP)
1845 SCH_FREE(dciSlotAlloc, sizeof(DlMsgSchInfo));
1846 cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId-1] = NULLP;
1849 SCH_FREE(msg4SlotAlloc, sizeof(DlMsgSchInfo));
1850 cell->schDlSlotInfo[pdschTime.slot]->dlMsgAlloc[ueId-1] = NULLP;
1851 DU_LOG("\nERROR --> SCH : Memory Allocation failed for msg4SlotAlloc->dlMsgPdschCfg");
1856 /* PUCCH resource */
1857 schAllocPucchResource(cell, pucchTime, cell->raCb[ueId-1].tcrnti, &cell->ueCb[ueId-1], isRetxMsg4, *msg4HqProc);
1859 cell->schDlSlotInfo[pdcchTime.slot]->pdcchUe = ueId;
1860 cell->schDlSlotInfo[pdschTime.slot]->pdschUe = ueId;
1861 cell->schUlSlotInfo[pucchTime.slot]->pucchUe = ueId;
1862 cell->raCb[ueId-1].msg4recvd = FALSE;
1865 cell->ueCb[ueId-1].retxMsg4HqProc= NULLP;
1870 /*******************************************************************
1872 * @brief sch Process pending Sr or Bsr Req
1876 * Function : updateBsrAndLcList
1879 * Updating the BSRInfo in UECB and Lclist
1881 * @params[in] SchCellCb *cell, SlotTimingInfo currTime
1882 * @return ROK - success
1885 *******************************************************************/
1886 void updateBsrAndLcList(CmLListCp *lcLL, BsrInfo *bsrInfo, uint8_t status)
1888 CmLList *node = NULLP, *next = NULLP;
1889 LcInfo *lcNode = NULLP;
1893 DU_LOG("\nERROR --> SCH: LcList not present");
1910 lcNode = (LcInfo *)node->node;
1913 /*Only when Status is OK then allocation is marked as ZERO and reqBO
1914 * is updated in UE's DB. If Failure, then allocation is added to reqBO
1915 * and same is updated in Ue's DB inside BSR Info structure*/
1918 lcNode->allocBO = 0;
1921 lcNode->reqBO += lcNode->allocBO;
1922 bsrInfo[lcNode->lcId].dataVol = lcNode->reqBO;
1923 if(lcNode->reqBO == 0)
1925 handleLcLList(lcLL, lcNode->lcId, DELETE);
1932 /*******************************************************************
1934 * @brief sch Process pending Sr or Bsr Req
1938 * Function : schProcessSrOrBsrReq
1941 * sch Process pending Sr or Bsr Req
1943 * @params[in] SchCellCb *cell, SlotTimingInfo currTime
1944 * @params[in] uint8_t ueId, Bool isRetx, SchUlHqProcCb **hqP
1945 * @return true - success
1948 *******************************************************************/
1949 bool schProcessSrOrBsrReq(SchCellCb *cell, SlotTimingInfo currTime, uint8_t ueId, bool isRetx, SchUlHqProcCb **hqP)
1951 bool k2Found = FALSE;
1952 uint8_t startSymb = 0, symbLen = 0;
1953 uint8_t k2TblIdx = 0, k2Index = 0, k2Val = 0;
1955 SchK2TimingInfoTbl *k2InfoTbl=NULLP;
1956 SlotTimingInfo dciTime, puschTime;
1960 DU_LOG("\nERROR --> SCH: schProcessSrOrBsrReq() : Cell is NULL");
1964 ueCb = &cell->ueCb[ueId-1];
1968 DU_LOG("\nERROR --> SCH: schProcessSrOrBsrReq() : UE is NULL");
1972 if (isRetx == FALSE)
1974 if (schUlGetAvlHqProcess(cell, ueCb, hqP) != ROK)
1980 /* Calculating time frame to send DCI for SR */
1981 ADD_DELTA_TO_TIME(currTime, dciTime, PHY_DELTA_DL + SCHED_DELTA, cell->numSlots);
1983 if(schGetSlotSymbFrmt(dciTime.slot, cell->slotFrmtBitMap) == DL_SLOT)
1986 if(ueCb->k2TblPrsnt)
1987 k2InfoTbl = &ueCb->k2InfoTbl;
1989 k2InfoTbl = &cell->k2InfoTbl;
1991 for(k2TblIdx = 0; k2TblIdx < k2InfoTbl->k2TimingInfo[dciTime.slot].numK2; k2TblIdx++)
1993 k2Index = k2InfoTbl->k2TimingInfo[dciTime.slot].k2Indexes[k2TblIdx];
1995 if(!ueCb->k2TblPrsnt)
1997 k2Val = cell->cellCfg.ulCfgCommon.schInitialUlBwp.puschCommon.timeDomRsrcAllocList[k2Index].k2;
1998 startSymb = cell->cellCfg.ulCfgCommon.schInitialUlBwp.puschCommon.timeDomRsrcAllocList[k2Index].startSymbol;
1999 symbLen = cell->cellCfg.ulCfgCommon.schInitialUlBwp.puschCommon.timeDomRsrcAllocList[k2Index].symbolLength;
2003 k2Val = ueCb->ueCfg.spCellCfg.servCellRecfg.initUlBwp.puschCfg.timeDomRsrcAllocList[k2Index].k2;
2004 startSymb = ueCb->ueCfg.spCellCfg.servCellRecfg.initUlBwp.puschCfg.timeDomRsrcAllocList[k2Index].startSymbol;
2005 symbLen = ueCb->ueCfg.spCellCfg.servCellRecfg.initUlBwp.puschCfg.timeDomRsrcAllocList[k2Index].symbolLength;
2007 /* Check for number of Symbol of PUSCH should be same as original in case of transmisson*/
2008 /* Calculating time frame to send PUSCH for SR */
2009 ADD_DELTA_TO_TIME(dciTime, puschTime, k2Val, cell->numSlots);
2011 if(schGetSlotSymbFrmt(puschTime.slot, cell->slotFrmtBitMap) == DL_SLOT)
2014 if(cell->schUlSlotInfo[puschTime.slot]->puschUe != 0)
2021 ADD_DELTA_TO_TIME(puschTime, (*hqP)->puschTime, 0, cell->numSlots);
2029 if(cell->api->SchScheduleUlLc(dciTime, puschTime, startSymb, symbLen, isRetx, hqP) != ROK)
2034 DU_LOG("\nDEBUG --> SCH : schProcessSrOrBsrReq(): K2 value is not found");
2040 /********************************************************************************
2042 * @brief Increment the Slot by a input factor
2046 * Function : schIncrSlot
2049 * Increment the slot by a input factor till num of Slots configured in a
2050 * Radio Frame. If it exceeds, move to next sfn.
2052 * @params[in/out] SlotTimingInfo timingInfo
2053 * [in] uint8_t incr [Increment factor]
2054 * [in] numSlotsPerRF [Number of Slots configured per RF as per
2056 * @return ROK - success
2059 *******************************************************************/
2060 void schIncrSlot(SlotTimingInfo *timingInfo, uint8_t incr, uint16_t numSlotsPerRF)
2062 timingInfo->slot += incr;
2063 if(timingInfo->slot >= numSlotsPerRF)
2065 timingInfo->sfn += timingInfo->slot/numSlotsPerRF;
2066 timingInfo->slot %= numSlotsPerRF;
2067 if(timingInfo->sfn > MAX_SFN)
2069 timingInfo->sfn %= MAX_SFN;
2074 /*******************************************************************
2076 * @brief Fill PDSCH info in Page Alloc
2080 * Function : schFillPagePdschCfg
2082 * Functionality: Fill PDSCH info in Page Alloc
2084 * @params[in] SchCellCb *cell, PdschCfg *pagePdschCfg, SlotTimingInfo slotTime,
2085 * uint16_t tbsSize, uint8_t mcs, uint16_t startPrb
2087 * @return pointer to return Value(ROK, RFAILED)
2089 * ****************************************************************/
2090 uint8_t schFillPagePdschCfg(SchCellCb *cell, PageDlSch *pageDlSch, SlotTimingInfo slotTime, uint16_t tbSize, uint8_t mcs, uint16_t startPrb)
2092 uint8_t dmrsStartSymbol, startSymbol, numSymbol;
2094 /* fill the PDSCH PDU */
2096 pageDlSch->tbInfo.mcs = mcs;
2097 tbSize = tbSize + TX_PAYLOAD_HDR_LEN;
2098 pageDlSch->tbInfo.tbSize = tbSize;
2099 pageDlSch->dmrs.dmrsType = 0; /* type-1 */
2100 pageDlSch->dmrs.nrOfDmrsSymbols = NUM_DMRS_SYMBOLS;
2101 pageDlSch->dmrs.dmrsAddPos = DMRS_ADDITIONAL_POS;
2103 /* the RB numbering starts from coreset0, and PDSCH is always above SSB */
2104 pageDlSch->freqAlloc.startPrb = startPrb;
2105 pageDlSch->freqAlloc.numPrb = schCalcNumPrb(tbSize, mcs, NUM_PDSCH_SYMBOL);
2106 pageDlSch->vrbPrbMapping = 0; /* non-interleaved */
2107 /* This is Intel's requirement. PDSCH should start after PDSCH DRMS symbol */
2108 pageDlSch->timeAlloc.mappingType = DMRS_MAP_TYPE_A; /* Type-A */
2109 pageDlSch->timeAlloc.startSymb = 3; /* spec-38.214, Table 5.1.2.1-1 */
2110 pageDlSch->timeAlloc.numSymb = NUM_PDSCH_SYMBOL;
2112 /* Find total symbols occupied including DMRS */
2113 dmrsStartSymbol = findDmrsStartSymbol(4);
2114 /* If there are no DRMS symbols, findDmrsStartSymbol() returns MAX_SYMB_PER_SLOT,
2115 * in that case only PDSCH symbols are marked as occupied */
2116 if(dmrsStartSymbol == MAX_SYMB_PER_SLOT)
2118 startSymbol = pageDlSch->timeAlloc.startSymb;
2119 numSymbol = pageDlSch->timeAlloc.numSymb;
2121 /* If DMRS symbol is found, mark DMRS and PDSCH symbols as occupied */
2124 startSymbol = dmrsStartSymbol;
2125 numSymbol = pageDlSch->dmrs.nrOfDmrsSymbols + pageDlSch->timeAlloc.numSymb;
2128 /* Allocate the number of PRBs required for DL PDSCH */
2129 if((allocatePrbDl(cell, slotTime, startSymbol, numSymbol,\
2130 &pageDlSch->freqAlloc.startPrb, pageDlSch->freqAlloc.numPrb)) != ROK)
2132 DU_LOG("\nERROR --> SCH : allocatePrbDl() failed for DL MSG");
2139 * @brief Handles retransmission for MSG3
2143 * Function : schMsg3RetxSchedulingForUe
2145 * This function handles retransmission for MSG3
2147 * @param[in] SchRaCb *raCb, RA cb pointer
2152 uint8_t schMsg3RetxSchedulingForUe(SchRaCb *raCb)
2154 bool k2Found = false;
2155 uint16_t dciSlot = 0;
2156 SlotTimingInfo dciTime, msg3Time;
2157 SchCellCb *cell = NULLP;
2158 SlotTimingInfo currTime;
2159 DciInfo *dciInfo = NULLP;
2161 currTime = cell->slotInfo;
2163 /* Calculating time frame to send DCI for MSG3 Retx*/
2164 ADD_DELTA_TO_TIME(currTime, dciTime, PHY_DELTA_DL + SCHED_DELTA, cell->numSlots);
2166 /* Consider this slot for sending DCI, only if it is a DL slot */
2167 if(schGetSlotSymbFrmt(dciSlot, raCb->cell->slotFrmtBitMap) == DL_SLOT)
2170 /* If PDCCH is already scheduled on this slot, cannot schedule PDSCH for another UE here. */
2171 if(cell->schDlSlotInfo[dciSlot]->pdcchUe != 0)
2174 k2Found = schGetMsg3K2(cell, &raCb->msg3HqProc, dciTime.slot, &msg3Time, TRUE);
2180 SCH_ALLOC(dciInfo, sizeof(DciInfo));
2183 DU_LOG("\nERROR --> SCH : Memory Allocation failed for dciInfo alloc");
2186 cell->schDlSlotInfo[msg3Time.slot]->ulGrant = dciInfo;
2187 SCH_ALLOC(cell->schUlSlotInfo[msg3Time.slot]->schPuschInfo, sizeof(SchPuschInfo));
2188 memset(dciInfo,0,sizeof(DciInfo));
2189 schFillUlDciForMsg3Retx(raCb, cell->schUlSlotInfo[msg3Time.slot]->schPuschInfo, dciInfo);
2191 raCb->retxMsg3HqProc = NULLP;
2196 * @brief Get K2 value for MSG3
2200 * Function : schGetMsg3K2
2202 * This function gets K2 for MSG3
2204 * @param[in] SchCellCb *cell, Cell cb struc pointer
2205 * @param[in] SchUlHqProcCb* msg3HqProc, msg3 harq proc pointer
2206 * @param[in] uint16_t dlTime, DL time of scheduling
2207 * @param[in] SlotTimingInfo *msg3Time, MSG3 timing info
2208 * @param[in] bool isRetx, indicates MSG3 retransmission
2213 bool schGetMsg3K2(SchCellCb *cell, SchUlHqProcCb* msg3HqProc, uint16_t dlTime, SlotTimingInfo *msg3Time, bool isRetx)
2215 bool k2Found = false;
2216 uint8_t k2TblIdx = 0;
2217 uint8_t k2Index = 0;
2220 uint8_t puschMu = 0;
2221 uint8_t msg3Delta = 0, msg3MinSchTime = 0;
2223 uint8_t totalCfgSlot = 0;
2225 SchK2TimingInfoTbl *msg3K2InfoTbl=NULLP;
2226 SlotTimingInfo currTime, msg3TempTime;
2227 currTime = cell->slotInfo;
2228 puschMu = cell->cellCfg.numerology;
2235 numK2 = cell->k2InfoTbl.k2TimingInfo[dlTime].numK2;
2236 msg3K2InfoTbl = &cell->msg3K2InfoTbl;
2242 numK2 = cell->msg3K2InfoTbl.k2TimingInfo[dlTime].numK2;
2243 msg3K2InfoTbl = &cell->k2InfoTbl;
2244 msg3MinSchTime = minMsg3SchTime[cell->cellCfg.numerology];
2245 msg3Delta = puschDeltaTable[puschMu];
2248 for(k2TblIdx = 0; k2TblIdx < numK2; k2TblIdx++)
2250 k2Index = msg3K2InfoTbl->k2TimingInfo[dlTime].k2Indexes[k2TblIdx];
2252 k2 = cell->cellCfg.ulCfgCommon.schInitialUlBwp.puschCommon.timeDomRsrcAllocList[k2Index].k2;
2255 if ((msg3HqProc->strtSymbl != cell->cellCfg.ulCfgCommon.schInitialUlBwp.puschCommon.timeDomRsrcAllocList[k2Index].startSymbol) ||
2256 (msg3HqProc->numSymbl != cell->cellCfg.ulCfgCommon.schInitialUlBwp.puschCommon.timeDomRsrcAllocList[k2Index].symbolLength))
2261 /* Delta is added to the slot allocation for msg3 based on 38.214 section 6.1.2.1 */
2262 k2 = k2 + msg3Delta;
2263 if(k2 >= msg3MinSchTime)
2265 ADD_DELTA_TO_TIME(currTime, msg3TempTime, k2, cell->numSlots);
2267 if(schGetSlotSymbFrmt(msg3TempTime.slot % totalCfgSlot, cell->slotFrmtBitMap) == DL_SLOT)
2270 /* If PUSCH is already scheduled on this slot, another PUSCH
2271 * pdu cannot be scheduled here */
2272 if(cell->schUlSlotInfo[msg3TempTime.slot]->puschUe != 0)
2278 if (k2Found == true)
2280 msg3Time->slot = msg3TempTime.slot;
2281 msg3Time->sfn = msg3TempTime.sfn;
2282 msg3Time->slot = msg3TempTime.slot;
2287 /**********************************************************************
2289 **********************************************************************/