#include "mac_sch_interface.h"
#include "sch.h"
#include "sch_utils.h"
+#include "common_def.h"
extern SchCb schCb[SCH_MAX_INST];
extern uint16_t prachCfgIdxTable[MAX_PRACH_CONFIG_IDX][8];
packSchMacUlSchInfo
};
-/**
- * @brief Time domain allocation for SSB
- *
- * @details
- *
- * Function : ssbDlTdAlloc
- *
- * This function handles common scheduling for DL
- *
- * @param[in] schCellCb *cell, cell cb
- * @param[in] DlBrdcstAlloc *dlBrdcstAlloc, DL brdcst allocation
- * @return void
- **/
-void ssbDlTdAlloc(uint8_t scs, uint8_t *ssbStartSymb)
-{
- uint8_t n;
- /* Determine value of "n" based on Section 4.1 of 3GPP TS 38.213 */
- switch(scs)
- {
- case SCH_SCS_15KHZ:
- {
- uint8_t symbIdx=0;
- n = 2;/* n = 0, 1 for SCS = 15KHz */
- for(uint8_t idx=0; idx<n; idx++)
- {
- /* start symbol determined using {2, 8} + 14n */
- ssbStartSymb[symbIdx++] = 2 + SCH_SYMBOL_PER_SLOT*idx;
- ssbStartSymb[symbIdx++] = 8 + SCH_SYMBOL_PER_SLOT*idx;
- }
- }
- break;
- default:
- DU_LOG("\nSCS %d is currently not supported", scs);
- }
-}
-
/**
* @brief common resource allocation for SSB
*
* @details
*
- * Function : schCmnDlAlloc
+ * Function : schBroadcastAlloc
*
* This function handles common scheduling for DL
*
* @param[in] DlBrdcstAlloc *dlBrdcstAlloc, DL brdcst allocation
* @return void
**/
-uint8_t schCmnDlAlloc(SchCellCb *cell, DlBrdcstAlloc *dlBrdcstAlloc)
+uint8_t schBroadcastAlloc(SchCellCb *cell, DlBrdcstAlloc *dlBrdcstAlloc,
+ uint16_t slot)
{
/* schedule SSB */
- uint8_t scs, ssbStartPrb, ssbStartSymb, idx;
- uint8_t ssbStartSymbArr[SCH_MAX_SSB_BEAM];
- SchDlAlloc *dlAlloc;
+ uint8_t ssbStartPrb, ssbStartSymb, idx;
+ SchDlSlotInfo *schDlSlotInfo;
SsbInfo ssbInfo;
- dlAlloc = cell->dlAlloc[cell->slotInfo.slot];
+ schDlSlotInfo = cell->schDlSlotInfo[slot];
if(dlBrdcstAlloc->ssbTrans)
{
- scs = cell->cellCfg.ssbSchCfg.scsCommon;
- ssbStartPrb = \
- (cell->cellCfg.ssbSchCfg.ssbOffsetPointA)/SCH_NUM_SC_PRB;
+ ssbStartPrb = cell->cellCfg.ssbSchCfg.ssbOffsetPointA;
+ ssbStartSymb = cell->ssbStartSymbArr[dlBrdcstAlloc->ssbIdxSupported-1]; /*since we are
+ supporting only 1 ssb beam */
- memset(ssbStartSymbArr, 0, SCH_MAX_SSB_BEAM);
- ssbDlTdAlloc(scs, ssbStartSymbArr);
- ssbStartSymb = ssbStartSymbArr[dlBrdcstAlloc->ssbIdxSupported-1]; /*since we are supporting only 1 ssb beam */
/* Assign interface structure */
for(idx=0; idx<dlBrdcstAlloc->ssbIdxSupported; idx++)
{
- ssbInfo.ssbIdx = idx;
- ssbInfo.fdAlloc.ssbStartPrbIdx = ssbStartPrb;
- ssbInfo.fdAlloc.ssbPrbDuration = SCH_SSB_PRB_DURATION;
- ssbInfo.tdAlloc.ssbStartSymbIdx = ssbStartSymb;
- ssbInfo.tdAlloc.ssbSymbolDuration = SCH_SSB_SYMB_DURATION;
+ ssbInfo.ssbIdx = idx;
+ ssbInfo.fdAlloc.startPrb = ssbStartPrb;
+ ssbInfo.fdAlloc.numPrb = SCH_SSB_NUM_PRB;
+ ssbInfo.tdAlloc.startSymb = ssbStartSymb;
+ ssbInfo.tdAlloc.numSymb = SCH_SSB_NUM_SYMB;
dlBrdcstAlloc->ssbInfo[idx] = ssbInfo;
- dlAlloc->ssbInfo[idx] = ssbInfo;
-
+ schDlSlotInfo->ssbInfo[idx] = ssbInfo;
}
- dlAlloc->ssbPres = true;
- dlAlloc->ssbIdxSupported = dlBrdcstAlloc->ssbIdxSupported;
- for(idx=ssbStartSymb; idx<ssbStartSymb+SCH_SSB_SYMB_DURATION; idx++)
+ schDlSlotInfo->ssbPres = true;
+ schDlSlotInfo->ssbIdxSupported = dlBrdcstAlloc->ssbIdxSupported;
+ for(idx=ssbStartSymb; idx<ssbStartSymb+SCH_SSB_NUM_SYMB; idx++)
{
- dlAlloc->assignedPrb[idx] = SCH_SSB_PRB_DURATION + 1; /* +1 for kSsb */
+ schDlSlotInfo->assignedPrb[idx] = ssbStartPrb + SCH_SSB_NUM_PRB + 1; /* +1 for kSsb */
}
-
}
/* SIB1 allocation */
if(dlBrdcstAlloc->sib1Trans)
{
- memcpy(&dlBrdcstAlloc->sib1Alloc.sib1PdcchCfg, &cell->cellCfg.sib1SchCfg.sib1PdcchCfg, sizeof(Sib1PdcchCfg));
- memcpy(&dlBrdcstAlloc->sib1Alloc.sib1PdschCfg, &cell->cellCfg.sib1SchCfg.sib1PdschCfg, sizeof(Sib1PdschCfg));
+ schDlSlotInfo->sib1Pres = true;
+ for(idx=0; idx<SCH_SYMBOL_PER_SLOT; idx++)
+ {
+ schDlSlotInfo->assignedPrb[idx] = ssbStartPrb + SCH_SSB_NUM_PRB + 1 + 10; /* 10 PRBs for sib1 */
+ }
+ memcpy(&dlBrdcstAlloc->sib1Alloc.bwp, &cell->cellCfg.sib1SchCfg.bwp, sizeof(BwpCfg));
+ memcpy(&dlBrdcstAlloc->sib1Alloc.sib1PdcchCfg, &cell->cellCfg.sib1SchCfg.sib1PdcchCfg, sizeof(PdcchCfg));
+ memcpy(&dlBrdcstAlloc->sib1Alloc.sib1PdschCfg, &cell->cellCfg.sib1SchCfg.sib1PdschCfg, sizeof(PdschCfg));
}
return ROK;
}
* RFAILED - failure
*
* ****************************************************************/
-int sendUlSchInfoToMac(UlSchInfo *ulSchInfo, Inst inst)
+int sendUlSchInfoToMac(UlSchedInfo *ulSchedInfo, Inst inst)
{
Pst pst;
SCH_FILL_RSP_PST(pst, inst);
pst.event = EVENT_UL_SCH_INFO;
- return(*schMacUlSchInfoOpts[pst.selector])(&pst, ulSchInfo);
-
+ return(*schMacUlSchInfoOpts[pst.selector])(&pst, ulSchedInfo);
}
/**
* @brief resource allocation for PRACH
* This function handles PRACH allocation
*
* @param[in] SchCellCb *cell, cell cb
- * @param[in] UlSchInfo *ulSchInfo, UL scheduling info
+ * @param[in] UlSchedInfo *ulSchedInfo, UL scheduling info
* @return void
**/
-int schPrachResAlloc(SchCellCb *cell, UlSchInfo *ulSchInfo)
+void schPrachResAlloc(SchCellCb *cell, UlSchedInfo *ulSchedInfo, SlotIndInfo prachOccasionTimingInfo)
{
+ uint8_t puschScs;
uint8_t numPrachRb = 0;
uint8_t numRa = 0;
uint8_t freqStart = 0;
- uint16_t sfn = 0;
- uint16_t slot = 0;
uint8_t prachCfgIdx = 0;
uint8_t prachFormat = 0;
uint8_t x = 0;
uint8_t y = 0;
- uint8_t prachSubframe = 0;
+ uint16_t prachSubframe = 0;
uint8_t prachStartSymbol = 0;
uint8_t prachOcas = 0;
uint8_t dataType = 0;
uint8_t idx = 0;
- SchUlAlloc *ulAlloc = NULLP;
+ SchUlSlotInfo *schUlSlotInfo = NULLP;
- sfn = cell->slotInfo.sfn;
- slot = cell->slotInfo.slot;
- ulAlloc = cell->ulAlloc[cell->slotInfo.slot];
- prachCfgIdx = cell->cellCfg.schRachCfg.prachCfgIdx;
+ puschScs = cell->cellCfg.schInitialUlBwp.bwp.scs;
+ schUlSlotInfo = cell->schUlSlotInfo[prachOccasionTimingInfo.slot];
+ prachCfgIdx = cell->cellCfg.schRachCfg.prachCfgIdx;
/* derive the prachCfgIdx table paramters */
x = prachCfgIdxTable[prachCfgIdx][1];
y = prachCfgIdxTable[prachCfgIdx][2];
prachSubframe = prachCfgIdxTable[prachCfgIdx][3];
- if((sfn%x) != y)
- {
- /* prach occasion does not lie in this SFN */
- DU_LOG("\nPRACH ocassion doesn't lie in this SFN");
- return RFAILED;
- }
- /* check for subFrame number */
- if ((1 << slot) & prachSubframe)
+ if((prachOccasionTimingInfo.sfn%x) == y)
{
- /* prach ocassion present in this subframe */
-
- prachFormat = prachCfgIdxTable[prachCfgIdx][0];
- prachStartSymbol = prachCfgIdxTable[prachCfgIdx][4];
- prachOcas = prachCfgIdxTable[prachCfgIdx][6];
-
- /* freq domain resource determination for RACH*/
- freqStart = cell->cellCfg.schRachCfg.msg1FreqStart;
- /* numRa determined as 𝑛 belonging {0,1,.., M − 1},
- * where M is given by msg1Fdm */
- numRa = (cell->cellCfg.schRachCfg.msg1Fdm - 1);
- for(idx=0; idx<MAX_RACH_NUM_RB_IDX; idx++)
- {
- if(numRbForPrachTable[idx][0] == cell->cellCfg.schRachCfg.rootSeqIdx)
- break;
- }
- numPrachRb = numRbForPrachTable[idx][3];
- dataType |= SCH_DATATYPE_PRACH;
- /* Considering first slot in the frame for PRACH */
- idx = 0;
- ulAlloc->assignedPrb[idx] = freqStart+numPrachRb;
- }
+ /* check for subFrame number */
+ if ((1 << prachOccasionTimingInfo.slot) & prachSubframe)
+ {
+ /* prach ocassion present in this subframe */
- /* Fill UL SCH Info */
- ulSchInfo->cellId = cell->cellId;
- ulSchInfo->slotIndInfo.sfn = sfn;
- ulSchInfo->slotIndInfo.slot = slot;
- ulSchInfo->dataType = dataType;
- /* prach info */
- ulSchInfo->prachSchInfo.numPrachOcas = prachOcas;
- ulSchInfo->prachSchInfo.prachFormat = prachFormat;
- ulSchInfo->prachSchInfo.numRa = numRa;
- ulSchInfo->prachSchInfo.prachStartSymb = prachStartSymbol;
+ prachFormat = prachCfgIdxTable[prachCfgIdx][0];
+ prachStartSymbol = prachCfgIdxTable[prachCfgIdx][4];
+ prachOcas = prachCfgIdxTable[prachCfgIdx][6];
- return ROK;
+ /* freq domain resource determination for RACH*/
+ freqStart = cell->cellCfg.schRachCfg.msg1FreqStart;
+ /* numRa determined as 𝑛 belonging {0,1,.., M − 1},
+ * where M is given by msg1Fdm */
+ numRa = (cell->cellCfg.schRachCfg.msg1Fdm - 1);
+ for(idx=0; idx<MAX_RACH_NUM_RB_IDX; idx++)
+ {
+ if(numRbForPrachTable[idx][0] == cell->cellCfg.schRachCfg.rootSeqLen)
+ {
+ if(numRbForPrachTable[idx][1] == cell->cellCfg.schRachCfg.prachSubcSpacing)
+ {
+ if(numRbForPrachTable[idx][2] == puschScs)
+ {
+ break;
+ }
+ }
+ }
+ }
+ numPrachRb = numRbForPrachTable[idx][3];
+ dataType |= SCH_DATATYPE_PRACH;
+ /* Considering first slot in the frame for PRACH */
+ idx = 0;
+ schUlSlotInfo->assignedPrb[idx] = freqStart+numPrachRb;
+ }
+ ulSchedInfo->dataType = dataType;
+ /* prach info */
+ ulSchedInfo->prachSchInfo.numPrachOcas = prachOcas;
+ ulSchedInfo->prachSchInfo.prachFormat = prachFormat;
+ ulSchedInfo->prachSchInfo.numRa = numRa;
+ ulSchedInfo->prachSchInfo.prachStartSymb = prachStartSymbol;
+ }
}
/**
* @param[in] SchCellCb *cell, cellCb
* @return void
**/
-int schUlResAlloc(SchCellCb *cell, Inst schInst)
+uint8_t schUlResAlloc(SchCellCb *cell, Inst schInst)
{
int ret = ROK;
- UlSchInfo ulSchInfo;
+ UlSchedInfo ulSchedInfo;
+ SchUlSlotInfo *schUlSlotInfo;
+ SlotIndInfo ulTimingInfo;
+
+ /* add PHY delta */
+ ADD_DELTA_TO_TIME(cell->slotInfo,ulTimingInfo,PHY_DELTA+SCHED_DELTA);
+
+ ulSchedInfo.cellId = cell->cellId;
+ ulSchedInfo.slotIndInfo.sfn = ulTimingInfo.sfn;
+ ulSchedInfo.slotIndInfo.slot = ulTimingInfo.slot;
+
/* Schedule resources for PRACH */
- schPrachResAlloc(cell, &ulSchInfo);
+ schPrachResAlloc(cell, &ulSchedInfo, ulTimingInfo);
+
+ schUlSlotInfo = cell->schUlSlotInfo[ulTimingInfo.slot];
+
+ if(schUlSlotInfo->schPuschInfo)
+ {
+ ulSchedInfo.crnti = cell->raCb[0].tcrnti;
+ ulSchedInfo.dataType |= SCH_DATATYPE_PUSCH;
+ memcpy(&ulSchedInfo.schPuschInfo, schUlSlotInfo->schPuschInfo,
+ sizeof(SchPuschInfo));
+ SCH_FREE(schUlSlotInfo->schPuschInfo, sizeof(SchPuschInfo));
+ schUlSlotInfo->schPuschInfo = NULL;
+ }
+
//send msg to MAC
- ret = sendUlSchInfoToMac(&ulSchInfo, schInst);
+ ret = sendUlSchInfoToMac(&ulSchedInfo, schInst);
if(ret != ROK)
{
DU_LOG("\nSending UL Sch info from SCH to MAC failed");
}
+ memset(cell->schUlSlotInfo[ulTimingInfo.slot], 0, sizeof(SchUlSlotInfo));
+
return ret;
}
+
+/*******************************************************************
+ *
+ * @brief Fills pdcch and pdsch info for msg4
+ *
+ * @details
+ *
+ * Function : schDlRsrcAllocMsg4
+ *
+ * Functionality:
+ * Fills pdcch and pdsch info for msg4
+ *
+ * @params[in]
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t schDlRsrcAllocMsg4(Msg4Alloc *msg4Alloc, SchCellCb *cell, uint16_t slot)
+{
+ uint8_t coreset0Idx = 0;
+ uint8_t numRbs = 0;
+ uint8_t firstSymbol = 0;
+ uint8_t numSymbols = 0;
+ uint8_t offset = 0;
+ uint8_t offsetPointA;
+ uint8_t FreqDomainResource[6] = {0};
+ uint16_t tbSize = 0;
+ uint8_t numPdschSymbols = 12; /* considering pdsch region from 2 to 13 */
+ uint8_t mcs = 4; /* MCS fixed to 4 */
+ SchBwpDlCfg *initialBwp;
+
+ PdcchCfg *pdcch = &msg4Alloc->msg4PdcchCfg;
+ PdschCfg *pdsch = &msg4Alloc->msg4PdschCfg;
+ BwpCfg *bwp = &msg4Alloc->bwp;
+
+ initialBwp = &cell->cellCfg.schInitialDlBwp;
+ offsetPointA = cell->cellCfg.ssbSchCfg.ssbOffsetPointA;
+ coreset0Idx = initialBwp->pdcchCommon.commonSearchSpace.coresetId;
+
+ /* derive the sib1 coreset0 params from table 13-1 spec 38.213 */
+ numRbs = coresetIdxTable[coreset0Idx][1];
+ numSymbols = coresetIdxTable[coreset0Idx][2];
+ offset = coresetIdxTable[coreset0Idx][3];
+
+ /* calculate time domain parameters */
+ uint16_t mask = 0x2000;
+ for(firstSymbol=0; firstSymbol<14;firstSymbol++)
+ {
+ if(initialBwp->pdcchCommon.commonSearchSpace.monitoringSymbol & mask)
+ break;
+ else
+ mask = mask>>1;
+ }
+
+ /* calculate the PRBs */
+ schAllocFreqDomRscType0(((offsetPointA-offset)/6), (numRbs/6), FreqDomainResource);
+
+ /* fill BWP */
+ bwp->freqAlloc.numPrb = initialBwp->bwp.freqAlloc.numPrb;
+ bwp->freqAlloc.startPrb = initialBwp->bwp.freqAlloc.startPrb;
+ bwp->subcarrierSpacing = initialBwp->bwp.scs;
+ bwp->cyclicPrefix = initialBwp->bwp.cyclicPrefix;
+
+ /* fill the PDCCH PDU */
+ pdcch->coreset0Cfg.startSymbolIndex = firstSymbol;
+ pdcch->coreset0Cfg.durationSymbols = numSymbols;
+ memcpy(pdcch->coreset0Cfg.freqDomainResource,FreqDomainResource,6);
+ pdcch->coreset0Cfg.cceRegMappingType = 1; /* coreset0 is always interleaved */
+ pdcch->coreset0Cfg.regBundleSize = 6; /* spec-38.211 sec 7.3.2.2 */
+ pdcch->coreset0Cfg.interleaverSize = 2; /* spec-38.211 sec 7.3.2.2 */
+ pdcch->coreset0Cfg.coreSetType = 0;
+ pdcch->coreset0Cfg.coreSet0Size = numRbs;
+ pdcch->coreset0Cfg.shiftIndex = cell->cellCfg.phyCellId;
+ pdcch->coreset0Cfg.precoderGranularity = 0; /* sameAsRegBundle */
+ pdcch->numDlDci = 1;
+ pdcch->dci.rnti = cell->schDlSlotInfo[slot]->msg4Info->crnti;
+ pdcch->dci.scramblingId = cell->cellCfg.phyCellId;
+ pdcch->dci.scramblingRnti = 0;
+ pdcch->dci.cceIndex = 4; /* considering SIB1 is sent at cce 0-1-2-3 */
+ pdcch->dci.aggregLevel = 4;
+ pdcch->dci.beamPdcchInfo.numPrgs = 1;
+ pdcch->dci.beamPdcchInfo.prgSize = 1;
+ pdcch->dci.beamPdcchInfo.digBfInterfaces = 0;
+ pdcch->dci.beamPdcchInfo.prg[0].pmIdx = 0;
+ pdcch->dci.beamPdcchInfo.prg[0].beamIdx[0] = 0;
+ pdcch->dci.txPdcchPower.powerValue = 0;
+ pdcch->dci.txPdcchPower.powerControlOffsetSS = 0;
+
+ /* fill the PDSCH PDU */
+ uint8_t cwCount = 0;
+ pdsch->pduBitmap = 0; /* PTRS and CBG params are excluded */
+ pdsch->rnti = cell->schDlSlotInfo[slot]->msg4Info->crnti;
+ pdsch->pduIndex = 0;
+ pdsch->numCodewords = 1;
+ for(cwCount = 0; cwCount < pdsch->numCodewords; cwCount++)
+ {
+ pdsch->codeword[cwCount].targetCodeRate = 308;
+ pdsch->codeword[cwCount].qamModOrder = 2;
+ pdsch->codeword[cwCount].mcsIndex = mcs; /* mcs configured to 4 */
+ pdsch->codeword[cwCount].mcsTable = 0; /* notqam256 */
+ pdsch->codeword[cwCount].rvIndex = 0;
+ /* 38.214: Table 5.1.3.2-1, divided by 8 to get the value in bytes */
+ /* TODO : Calculate tbSize based of DL CCCH msg size */
+ tbSize = schCalcTbSize(2664/8); /* send this value to the func in bytes when considering msg4 size */
+ pdsch->codeword[cwCount].tbSize = tbSize;
+ }
+ pdsch->dataScramblingId = cell->cellCfg.phyCellId;
+ pdsch->numLayers = 1;
+ pdsch->transmissionScheme = 0;
+ pdsch->refPoint = 0;
+ pdsch->dmrs.dlDmrsSymbPos = 2;
+ pdsch->dmrs.dmrsConfigType = 0; /* type-1 */
+ pdsch->dmrs.dlDmrsScramblingId = cell->cellCfg.phyCellId;
+ pdsch->dmrs.scid = 0;
+ pdsch->dmrs.numDmrsCdmGrpsNoData = 1;
+ pdsch->dmrs.dmrsPorts = 0;
+ pdsch->pdschFreqAlloc.resourceAllocType = 1; /* RAT type-1 RIV format */
+ /* the RB numbering starts from coreset0, and PDSCH is always above SSB */
+ pdsch->pdschFreqAlloc.freqAlloc.startPrb = offset + SCH_SSB_NUM_PRB;
+ pdsch->pdschFreqAlloc.freqAlloc.numPrb = schCalcNumPrb(tbSize,mcs,numPdschSymbols);
+ pdsch->pdschFreqAlloc.vrbPrbMapping = 0; /* non-interleaved */
+ pdsch->pdschTimeAlloc.timeAlloc.startSymb = 2; /* spec-38.214, Table 5.1.2.1-1 */
+ pdsch->pdschTimeAlloc.timeAlloc.numSymb = 12;
+ pdsch->beamPdschInfo.numPrgs = 1;
+ pdsch->beamPdschInfo.prgSize = 1;
+ pdsch->beamPdschInfo.digBfInterfaces = 0;
+ pdsch->beamPdschInfo.prg[0].pmIdx = 0;
+ pdsch->beamPdschInfo.prg[0].beamIdx[0] = 0;
+ pdsch->txPdschPower.powerControlOffset = 0;
+ pdsch->txPdschPower.powerControlOffsetSS = 0;
+
+ pdcch->dci.pdschCfg = pdsch;
+ return ROK;
+}
+
/**********************************************************************
End of file
**********************************************************************/