X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=src%2F5gnrsch%2Fsch_utils.c;h=4cb93c66f53651e0ea734434c3226e89f1e8ce38;hb=5007af25423493fbc002e30d847aa05d44bc180e;hp=f2c9c84024f0a4b394ff2d63d672a55057e5ac49;hpb=6b44407d464a5a4e060999255233a7cfe78bb0fa;p=o-du%2Fl2.git diff --git a/src/5gnrsch/sch_utils.c b/src/5gnrsch/sch_utils.c index f2c9c8402..4cb93c66f 100644 --- a/src/5gnrsch/sch_utils.c +++ b/src/5gnrsch/sch_utils.c @@ -44,7 +44,30 @@ #include "sch_utils.h" #include "math.h" -/* spec-38.213 Table 13-1 */ +#ifdef NR_TDD +/* spec-38.213 Table 13-4 for SCS=30KHz */ +/* Note: Picking Table 13-4 and not 13-6 since band supported is n78 and + * corresponding minimum B/W is 10 MHz */ +int8_t coresetIdxTable[MAX_CORESET_INDEX][4] = { +{ 1, 24, 2, 0}, /* index 0 */ +{ 1, 24, 2, 1}, /* index 1 */ +{ 1, 24, 2, 2}, /* index 2 */ +{ 1, 24, 2, 3}, /* index 3 */ +{ 1, 24, 2, 4}, /* index 4 */ +{ 1, 24, 3, 0}, /* index 5 */ +{ 1, 24, 3, 1}, /* index 6 */ +{ 1, 24, 3, 2}, /* index 7 */ +{ 1, 24, 3, 3}, /* index 8 */ +{ 1, 24, 3, 4}, /* index 9 */ +{ 1, 48, 1, 12}, /* index 10 */ +{ 1, 48, 1, 14}, /* index 11 */ +{ 1, 48, 1, 16}, /* index 12 */ +{ 1, 48, 2, 12}, /* index 13 */ +{ 1, 48, 2, 14}, /* index 14 */ +{ 1, 48, 2, 16}, /* index 15 */ +}; +#else +/* spec-38.213 Table 13-1 for SCS=15KHz */ int8_t coresetIdxTable[MAX_CORESET_INDEX][4] = { { 1, 24, 2, 0}, /* index 0 */ { 1, 24, 2, 2}, /* index 1 */ @@ -63,6 +86,7 @@ int8_t coresetIdxTable[MAX_CORESET_INDEX][4] = { { 1, 96, 3, 38}, /* index 14 */ { 0, 0, 0, 0}, /* index 15 */ }; +#endif /* spec-38.213 Table 13-11 */ /* m value is scaled to 2, when using it in formula, divide by 2 */ @@ -467,21 +491,26 @@ uint8_t pucchResourceSet[MAX_PUCCH_RES_SET_IDX][4] = { * * This function finds the TBSize from table Table 5.1.3.2-1 spec 38.214 * - * @param[in] payLoadSize - size of payload - * @return TBsize from the Table + * @param[in] payLoadSize - size of payload in bytes + * @return TBsize from the Table in bytes **/ -uint16_t schCalcTbSize(uint16_t payLoadSize) +uint16_t schCalcTbSize(uint32_t payLoadSize) { uint8_t tbsIndex = 0; - payLoadSize = payLoadSize*8; + uint16_t maxTbSize; + + maxTbSize = tbSizeTable[TOTAL_TBSIZE_VALUES -1]/8; + if(payLoadSize >= maxTbSize) + return maxTbSize; + payLoadSize = payLoadSize*8; while(payLoadSize > tbSizeTable[tbsIndex]) { tbsIndex++; } /* return the TBsize in bytes */ - return (tbSizeTable[tbsIndex]); + return (tbSizeTable[tbsIndex]/8); } /** @@ -493,7 +522,7 @@ uint16_t schCalcTbSize(uint16_t payLoadSize) * * This function calculates the number of PRbs * - * @param[in] tbSize + * @param[in] tbSize in bytes * @param[in] mcs * @param[in] number of symbols * @return number PRBs @@ -507,8 +536,10 @@ uint16_t schCalcNumPrb(uint16_t tbSize, uint16_t mcs, uint8_t numSymbols) uint16_t rValue = mcsTable[mcs][2]; uint8_t numLayer = 1; /* v value */ - /* formula used for calculation of rbSize, 38.213 section 5.1.3.2 * - * Ninfo = Nre . R . Qm . v * + tbSize = tbSize * 8; //Calculate tbSize in bits + + /* formula used for calculation of rbSize, 38.214 section 5.1.3.2 * + * Ninfo = S . Nre . R . Qm . v * * Nre' = Nsc . NsymPdsch - NdmrsSymb - Noh * * Nre = min(156,Nre') . nPrb */ @@ -522,7 +553,53 @@ uint16_t schCalcNumPrb(uint16_t tbSize, uint16_t mcs, uint8_t numSymbols) numPrb = ceil((float)nre / nreDash); return numPrb; } +/** +* @brief calculation of transport block size. +* +* @details +* +* Function: schCalcTbSizeFromNPrb +* +* This function calculates the transport block size +* +* @param[in] nPrb is num PRB +* @param[in] mcs +* @param[in] number of symbols +* @return tbSize +**/ +uint16_t schCalcTbSizeFromNPrb(uint16_t numPrb, uint16_t mcs, uint8_t numSymbols) +{ + uint16_t tbSize = 0; + uint16_t tbsIndex = 0; + uint16_t nre = 0; + uint16_t nreDash = 0; + uint8_t qm = mcsTable[mcs][1]; + uint16_t rValue = mcsTable[mcs][2]; + uint8_t numLayer = 1; /* v value */ + + /* formula used for calculation of rbSize, 38.213 section 5.1.3.2 * + * Ninfo = Nre . R . Qm . v where [ NInfo is tbSize] * + * Nre' = Nsc . NsymPdsch - NdmrsSymb - Noh * + * Nre = min(156,Nre') . nPrb */ + + nreDash = ceil( (12 * numSymbols) - NUM_DMRS_SYMBOLS - 0); + + if(nreDash > 156) + nreDash = 156; + + nre = nreDash * numPrb; + tbSize = ceil(nre * qm * numLayer * rValue/1024.0); + tbSize = ceil(tbSize/8.0); + + while(tbSize > tbSizeTable[tbsIndex]) + { + tbsIndex++; + } + tbSize = tbSizeTable[tbsIndex]; + + return tbSize; +} /** * @brief fetching ueCb from cellCb * @@ -563,6 +640,7 @@ void schInitUlSlot(SchUlSlotInfo *schUlSlotInfo) { schUlSlotInfo->assignedPrb[itr] = 0; } + schUlSlotInfo->resAllocBitMap = 0; schUlSlotInfo->puschCurrentPrb = PUSCH_START_RB; schUlSlotInfo->schPuschInfo = NULLP; @@ -588,14 +666,55 @@ void schInitDlSlot(SchDlSlotInfo *schDlSlotInfo) { schDlSlotInfo->assignedPrb[itr] = 0; } - + schDlSlotInfo->resAllocBitMap = 0; for(uint8_t itr=0; itrssbInfo[itr], 0, sizeof(SsbInfo)); } +#if 0 + //make allocation for SSB + if(cell->firstSsbTransmitted) + { + //TODO check if this slot and sfn are for ssb + } +#endif +} +#ifdef NR_TDD + +/** + * @brief determines slot format + * + * @details + * + * Function : schGetSlotSymbFrmt + * + * This API is invoked to determine if current slot is DL or UL + * + * @param[in] uint16_t slot + * @param[in] uint32_t bitMap from cellCb + * @return SlotConfig + * -# DL - 0 + * -# UL - 1 + * -# FLEXI - 2 + **/ +SlotConfig schGetSlotSymbFrmt(uint16_t slot, uint32_t bitMap) +{ + SlotConfig slotFrmt; + int mask1 = 0, mask2 = 0; + + slot = (slot%10)*2; + mask1 = 1<<(slot); + mask2 = 1<<(slot+1); + slotFrmt = ((mask1 & bitMap)>>slot) + (2*((mask2 & bitMap)>>(slot+1))); + + //printf("\n\n\n\n*****FormatType:%d Slot:%d****\n\n\n\n", slotFrmt, slot/2); + + return slotFrmt; } + +#endif /********************************************************************** End of file **********************************************************************/