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DMRS estimation default value is moved outside slot processing

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- in PTRS processing the default value for DMRS is set outside slot
   processing.
This commit is contained in:
Parminder Singh
2020-11-06 14:26:25 +01:00
parent 03db617c38
commit 910c1860f0
3 changed files with 41 additions and 25 deletions
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openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+14 -1
View File
@@ -563,8 +563,21 @@ void nr_pusch_ptrs_processing(PHY_VARS_gNB *gNB,
phase_per_symbol = (int16_t*)gNB->pusch_vars[ulsch_id]->ptrs_phase_per_slot[aarx];
ptrs_re_symbol = &gNB->pusch_vars[ulsch_id]->ptrs_re_per_slot;
*ptrs_re_symbol = 0;
phase_per_symbol[2*symbol] = 0; // Real
phase_per_symbol[(2*symbol)+1] = 0; // Imag
/* set DMRS estimates to 0 angle with magnitude 1 */
if(is_dmrs_symbol(symbol,*dmrsSymbPos))
{
/* set DMRS real estimation to 32767 */
phase_per_symbol[2*symbol]=(int16_t)((1<<15)-1); // 32767
#ifdef DEBUG_UL_PTRS
printf("[PHY][PTRS]: DMRS Symbol %d -> %4d + j*%4d\n", symbol, phase_per_symbol[2*symbol],phase_per_symbol[(2*symbol)+1]);
#endif
}
else// real ptrs value is set to 0
{
phase_per_symbol[2*symbol] = 0; // Real
}
if(symbol == *startSymbIndex)
{
*ptrsSymbPos = 0;
openair1/PHY/NR_REFSIG/ptrs_nr.c
-10
View File
@@ -365,16 +365,6 @@ int8_t nr_ptrs_process_slot(uint16_t dmrsSymbPos,
int8_t tmp = 0;
for(uint8_t symb = startSymbIdx; symb <symbInSlot; symb ++)
{
/* set DMRS estimates to 0 angle with magnitude 1 */
if(is_dmrs_symbol(symb,dmrsSymbPos))
{
/* set DMRS estimation */
estPerSymb[symb*2]=(int16_t)((1<<15)-1); // 32767
estPerSymb[(symb*2)+1]= 0; // no angle
#ifdef DEBUG_PTRS
printf("[PHY][PTRS]: DMRS Symbol %d :(%4d %4d)\n", symb, estPerSymb[symb*2],estPerSymb[(symb*2)+1]);
#endif
}
/* Update left and right reference from an estimated symbol */
if((is_ptrs_symbol(symb, ptrsSymbPos)) || (is_dmrs_symbol(symb,dmrsSymbPos)))
{
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
+27 -14
View File
@@ -995,19 +995,19 @@ void nr_pdsch_ptrs_processing(PHY_VARS_NR_UE *ue,
uint16_t *nb_rb = NULL;
if(dlsch0_harq->status == ACTIVE)
{
symbInSlot = dlsch0_harq->start_symbol + dlsch0_harq->nb_symbols;
startSymbIndex = &dlsch0_harq->start_symbol;
nbSymb = &dlsch0_harq->nb_symbols;
L_ptrs = &dlsch0_harq->PTRSTimeDensity;
K_ptrs = &dlsch0_harq->PTRSFreqDensity;
dmrsSymbPos = &dlsch0_harq->dlDmrsSymbPos;
ptrsSymbPos = &dlsch0_harq->ptrs_symbols;
ptrsSymbIdx = &dlsch0_harq->ptrs_symbol_index;
ptrsReOffset = &dlsch0_harq->PTRSReOffset;
dmrsConfigType = &dlsch0_harq->ptrs_symbol_index;
nb_rb = &dlsch0_harq->nb_rb;
}
{
symbInSlot = dlsch0_harq->start_symbol + dlsch0_harq->nb_symbols;
startSymbIndex = &dlsch0_harq->start_symbol;
nbSymb = &dlsch0_harq->nb_symbols;
L_ptrs = &dlsch0_harq->PTRSTimeDensity;
K_ptrs = &dlsch0_harq->PTRSFreqDensity;
dmrsSymbPos = &dlsch0_harq->dlDmrsSymbPos;
ptrsSymbPos = &dlsch0_harq->ptrs_symbols;
ptrsSymbIdx = &dlsch0_harq->ptrs_symbol_index;
ptrsReOffset = &dlsch0_harq->PTRSReOffset;
dmrsConfigType = &dlsch0_harq->ptrs_symbol_index;
nb_rb = &dlsch0_harq->nb_rb;
}
if(dlsch1_harq)
{
symbInSlot = dlsch1_harq->start_symbol + dlsch0_harq->nb_symbols;
@@ -1028,8 +1028,21 @@ void nr_pdsch_ptrs_processing(PHY_VARS_NR_UE *ue,
phase_per_symbol = (int16_t*)pdsch_vars[eNB_id]->ptrs_phase_per_slot[aarx];
ptrs_re_symbol = (int32_t*)pdsch_vars[eNB_id]->ptrs_re_per_slot[aarx];
ptrs_re_symbol[symbol] = 0;
phase_per_symbol[2*symbol] = 0; // Real
phase_per_symbol[(2*symbol)+1] = 0; // Imag
/* set DMRS estimates to 0 angle with magnitude 1 */
if(is_dmrs_symbol(symbol,*dmrsSymbPos))
{
/* set DMRS real estimation to 32767 */
phase_per_symbol[2*symbol]=(int16_t)((1<<15)-1); // 32767
#ifdef DEBUG_DL_PTRS
printf("[PHY][PTRS]: DMRS Symbol %d -> %4d + j*%4d\n", symbol, phase_per_symbol[2*symbol],phase_per_symbol[(2*symbol)+1]);
#endif
}
else// real ptrs value is set to 0
{
phase_per_symbol[2*symbol] = 0; // Real
}
if(dlsch0_harq->status == ACTIVE)
{
if(symbol == *startSymbIndex)