#include "du_app_mac_inf.h"
#include "mac_sch_interface.h"
#include "sch.h"
+#include "sch_utils.h"
extern SchCb schCb[SCH_MAX_INST];
+extern uint16_t prachCfgIdxTable[MAX_PRACH_CONFIG_IDX][8];
+extern uint16_t numRbForPrachTable[MAX_RACH_NUM_RB_IDX][5];
+
+SchMacUlSchInfoFunc schMacUlSchInfoOpts[] =
+{
+ packSchMacUlSchInfo,
+ MacProcUlSchInfo,
+ packSchMacUlSchInfo
+};
/**
* @brief Time domain allocation for SSB
*
* This function handles common scheduling for DL
*
- * @param[in] schCellCb *cell, cell cb
- * @param[in] DlBrdcstAlloc *dlBrdcstAlloc, DL brdcst allocation
+ * @param[in] uint8_t scs, uint8_t *ssbStartSym
* @return void
**/
void ssbDlTdAlloc(uint8_t scs, uint8_t *ssbStartSymb)
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;
SchDlAlloc *dlAlloc;
SsbInfo ssbInfo;
- dlAlloc = cell->dlAlloc[cell->slotInfo.slot];
+ dlAlloc = cell->dlAlloc[slot];
if(dlBrdcstAlloc->ssbTrans)
{
scs = cell->cellCfg.ssbSchCfg.scsCommon;
- ssbStartPrb = \
- ((cell->cellCfg.ssbSchCfg.ssbSubcOffset)-(cell->cellCfg.ssbSchCfg.ssbOffsetPointA))/SCH_NUM_SC_PRB;
+ ssbStartPrb = cell->cellCfg.ssbSchCfg.ssbOffsetPointA;
memset(ssbStartSymbArr, 0, SCH_MAX_SSB_BEAM);
ssbDlTdAlloc(scs, ssbStartSymbArr);
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.fdAlloc.startPrb = ssbStartPrb;
+ ssbInfo.fdAlloc.numPrb = SCH_SSB_PRB_DURATION;
+ ssbInfo.tdAlloc.startSymb = ssbStartSymb;
+ ssbInfo.tdAlloc.numSymb = SCH_SSB_SYMB_DURATION;
dlBrdcstAlloc->ssbInfo[idx] = ssbInfo;
dlAlloc->ssbInfo[idx] = ssbInfo;
dlAlloc->ssbIdxSupported = dlBrdcstAlloc->ssbIdxSupported;
for(idx=ssbStartSymb; idx<ssbStartSymb+SCH_SSB_SYMB_DURATION; idx++)
{
- dlAlloc->assignedPrb[idx] = SCH_SSB_PRB_DURATION;
+ dlAlloc->assignedPrb[idx] = ssbStartPrb + SCH_SSB_PRB_DURATION + 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));
+ dlAlloc->sib1Pres = true;
+ for(idx=0; idx<SCH_SYMBOL_PER_SLOT; idx++)
+ {
+ dlAlloc->assignedPrb[idx] = ssbStartPrb + SCH_SSB_PRB_DURATION + 1 + 10; /* 10 PRBs for sib1 */
+ }
+ memcpy(&dlBrdcstAlloc->sib1Alloc.sib1PdcchCfg, &cell->cellCfg.sib1SchCfg.sib1PdcchCfg, sizeof(PdcchCfg));
+ memcpy(&dlBrdcstAlloc->sib1Alloc.sib1PdschCfg, &cell->cellCfg.sib1SchCfg.sib1PdschCfg, sizeof(PdschCfg));
}
return ROK;
}
+/*******************************************************************
+ *
+ * @brief Handles sending UL scheduler info to MAC
+ *
+ * @details
+ *
+ * Function : sendUlSchInfoToMac
+ *
+ * Functionality:
+ * Sends UL Sch info to MAC from SCH
+ *
+ * @params[in]
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+int sendUlSchInfoToMac(UlSchInfo *ulSchInfo, Inst inst)
+{
+ Pst pst;
+
+ memset(&pst, 0, sizeof(Pst));
+ SCH_FILL_RSP_PST(pst, inst);
+ pst.event = EVENT_UL_SCH_INFO;
+
+ return(*schMacUlSchInfoOpts[pst.selector])(&pst, ulSchInfo);
+
+}
+/**
+ * @brief resource allocation for PRACH
+ *
+ * @details
+ *
+ * Function : schPrachResAlloc
+ *
+ * This function handles PRACH allocation
+ *
+ * @param[in] SchCellCb *cell, cell cb
+ * @param[in] UlSchInfo *ulSchInfo, UL scheduling info
+ * @return void
+ **/
+int schPrachResAlloc(SchCellCb *cell, UlSchInfo *ulSchInfo)
+{
+ 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;
+ uint16_t prachSubframe = 0;
+ uint8_t prachStartSymbol = 0;
+ uint8_t prachOcas = 0;
+ uint8_t dataType = 0;
+ uint8_t idx = 0;
+ SchUlAlloc *ulAlloc = NULLP;
+
+ sfn = cell->slotInfo.sfn;
+ slot = cell->slotInfo.slot;
+ ulAlloc = cell->ulAlloc[cell->slotInfo.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)
+ {
+ /* 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;
+ }
+
+ /* 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;
+
+ return ROK;
+}
+
+/**
+ * @brief resource allocation for UL
+ *
+ * @details
+ *
+ * Function : schUlResAlloc
+ *
+ * This function handles UL Resource allocation
+ *
+ * @param[in] SchCellCb *cell, cellCb
+ * @return void
+ **/
+uint8_t schUlResAlloc(SchCellCb *cell, Inst schInst)
+{
+ int ret = ROK;
+ UlSchInfo ulSchInfo;
+ SchUlAlloc *ulAlloc;
+
+ /* Schedule resources for PRACH */
+ schPrachResAlloc(cell, &ulSchInfo);
+
+ ulAlloc = cell->ulAlloc[cell->slotInfo.slot];
+
+ if(ulAlloc->schPuschInfo)
+ {
+ ulSchInfo.dataType |= SCH_DATATYPE_PUSCH;
+ memcpy(&ulSchInfo.schPuschInfo, ulAlloc->schPuschInfo,
+ sizeof(SchPuschInfo));
+ SCH_FREE(ulAlloc->schPuschInfo, sizeof(SchPuschInfo));
+ }
+
+ //send msg to MAC
+ ret = sendUlSchInfoToMac(&ulSchInfo, schInst);
+ if(ret != ROK)
+ {
+ DU_LOG("\nSending UL Sch info from SCH to MAC failed");
+ }
+
+ 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};
+ SchBwpDlCfg *initialBwp;
+
+ PdcchCfg *pdcch = &msg4Alloc->msg4PdcchCfg;
+ PdschCfg *pdsch = &msg4Alloc->msg4PdschCfg;
+
+ initialBwp = &cell->cellCfg.schInitialDlBwp;
+ offsetPointA = cell->cellCfg.ssbSchCfg.ssbOffsetPointA;
+ coreset0Idx = initialBwp->pdcchCommon.raSearchSpace.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.raSearchSpace.monitoringSymbol & mask)
+ break;
+ else
+ mask = mask>>1;
+ }
+
+ /* calculate the PRBs */
+ calculatePRB( ((offsetPointA-offset)/6), (numRbs/6), FreqDomainResource);
+
+ /* fill the PDCCH PDU */
+ pdcch->pdcchBwpCfg.BWPSize = initialBwp->bwp.numPrb;
+ pdcch->pdcchBwpCfg.BWPStart = initialBwp->bwp.firstPrb;
+ pdcch->pdcchBwpCfg.subcarrierSpacing = initialBwp->bwp.scs;
+ pdcch->pdcchBwpCfg.cyclicPrefix = initialBwp->bwp.cyclicPrefix;
+ 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->dlAlloc[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->dlAlloc[slot]->msg4Info->crnti;
+ pdsch->pduIndex = 0;
+ pdsch->pdschBwpCfg.BWPSize = initialBwp->bwp.numPrb;
+ pdsch->pdschBwpCfg.BWPStart = initialBwp->bwp.firstPrb;
+ pdsch->numCodewords = 1;
+ for(cwCount = 0; cwCount < pdsch->numCodewords; cwCount++)
+ {
+ pdsch->codeword[cwCount].targetCodeRate = 308;
+ pdsch->codeword[cwCount].qamModOrder = 2;
+ pdsch->codeword[cwCount].mcsIndex = 4; /* 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 */
+ pdsch->codeword[cwCount].tbSize = 2664/8;
+ }
+ 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->freqAlloc.resourceAlloc = 1; /* RAT type-1 RIV format */
+ /* the RB numbering starts from coreset0, and PDSCH is always above SSB */
+ pdsch->freqAlloc.rbStart = offset + SCH_SSB_PRB_DURATION;
+ /* formula used for calculation of rbSize, 38.213 section 5.1.3.2 *
+ * Ninfo = S . Nre . R . Qm . v *
+ * Nre' = Nsc . NsymPdsch - NdmrsSymb - Noh *
+ * Nre = min(156,Nre') . nPrb */
+ /* TODO : Calculate rbSize based on tbSize calculated */
+ pdsch->freqAlloc.rbSize = 34;
+ pdsch->freqAlloc.vrbPrbMapping = 0; /* non-interleaved */
+ pdsch->timeAlloc.startSymbolIndex = 2; /* spec-38.214, Table 5.1.2.1-1 */
+ pdsch->timeAlloc.numSymbols = 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
Code Review / o-du / l2.git / blobdiff