* @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++;
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
*
{
memset(&schDlSlotInfo->ssbInfo[itr], 0, sizeof(SsbInfo));
}
+}
+
+#ifdef NR_TDD
+
+/**
+ * @brief determines slot format
+ *
+ * @details
+ *
+ * Function : schGetSlotFrmt
+ *
+ * This API is invoked to determine if current slot is DL or UL
+ *
+ * @param[in] uint16_t slot
+ * @param[in] uint32_t slotBitMap from cellCb
+ * @return SlotConfig
+ * -# DL - 0
+ * -# UL - 1
+ * -# FLEXI - 2
+ **/
+SlotConfig schGetSlotFrmt(uint16_t slot, uint32_t slotBitMap)
+{
+ SlotConfig slotFrmt;
+ int mask1 = 0, mask2 = 0;
+
+ slot = (slot%10)*2;
+ mask1 = 1<<(slot);
+ mask2 = 1<<(slot+1);
+ slotFrmt = ((mask1 & slotBitMap)>>slot) + (2*((mask2 & slotBitMap)>>(slot+1)));
+ //printf("\n\n\n\n*****FormatType:%d Slot:%d****\n\n\n\n", slotFrmt, slot/2);
+ return slotFrmt;
}
+
+#endif
/**********************************************************************
End of file
**********************************************************************/