#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 */
{ 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 */
* @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++;
tbSize = tbSize * 8; //Calculate tbSize in bits
- /* formula used for calculation of rbSize, 38.213 section 5.1.3.2 *
- * Ninfo = Nre . R . Qm . v *
+ /* 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 */
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)
+{
+ uint8_t qm = mcsTable[mcs][1];
+ uint16_t rValue = mcsTable[mcs][2];
+ uint16_t tbsIndex = 0;
+ uint32_t tbSize = 0;
+ uint32_t nre = 0;
+ uint32_t nreDash = 0;
+ uint32_t nInfo = 0;
+ uint32_t n = 0;
+ uint32_t nInfoDash = 0;
+ uint32_t c = 0;
+ const uint8_t numLayer = 1;
+ const uint16_t numRbSc = 12;
+ const uint16_t numDmrsRes = 12;
+ const uint16_t sf = 1;
+// uint16_t numPrbOvrHead = 0;
+
+ /* formula used for calculation of rbSize, 38.214 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 = MIN(156, ceil( (numRbSc * numSymbols) - numDmrsRes - 0));
+ nre = nreDash * numPrb;
+ nInfo = ceil(nre * qm * numLayer * rValue/(1024.0 * sf));
+
+ if(nInfo <= 3824)
+ {
+ n = MAX(3, (uint32_t)cmLog2(nInfo) - 6);
+ nInfoDash = MAX(24, (1<<n)*(nInfo/(1<<n)));
+ while(nInfoDash > tbSizeTable[tbsIndex])
+ {
+ tbsIndex++;
+ }
+ tbSize = tbSizeTable[tbsIndex];
+ }
+ else
+ {
+ n = (uint32_t)cmLog2(nInfo - 24) - 5;
+ nInfoDash = MAX(3840, (1<<n)*ceil((nInfo - 24)/(1<<n)));
+
+ if(rValue<256)
+ {
+ c = ceil((nInfoDash + 24)/3816);
+ tbSize = 8 * c * ceil((nInfoDash + 24)/(8 * c)) - 24;
+ }
+ else
+ {
+ if(nInfoDash > 8424)
+ {
+ c = ceil((nInfoDash + 24)/8424);
+ tbSize = 8 * c * ceil((nInfoDash + 24)/(8 * c)) - 24;
+ }
+ else
+ {
+ tbSize = 8 * ceil((nInfoDash + 24)/(8)) - 24;
+ }
+ }
+ }
+ return tbSize;
+}
/**
* @brief fetching ueCb from cellCb
*
{
schUlSlotInfo->assignedPrb[itr] = 0;
}
+ schUlSlotInfo->resAllocBitMap = 0;
schUlSlotInfo->puschCurrentPrb = PUSCH_START_RB;
schUlSlotInfo->schPuschInfo = NULLP;
{
schDlSlotInfo->assignedPrb[itr] = 0;
}
-
+ schDlSlotInfo->resAllocBitMap = 0;
for(uint8_t itr=0; itr<MAX_SSB_IDX; itr++)
{
memset(&schDlSlotInfo->ssbInfo[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
**********************************************************************/
Code Review / o-du / l2.git / blobdiff