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Set the previous PTRS estimates to 0 for each slot

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- The memory shall be reset for each slot to avoid interpolation error.
This commit is contained in:
Parminder Singh
2020-09-02 10:10:10 +02:00
parent 6ce38ac960
commit 88a14fc4cc
1 changed files with 5 additions and 0 deletions
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openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+5
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@@ -559,6 +559,11 @@ void nr_pusch_ptrs_processing(PHY_VARS_gNB *gNB,
for (int aarx=0; aarx< frame_parms->nb_antennas_rx; aarx++) for (int aarx=0; aarx< frame_parms->nb_antennas_rx; aarx++)
{ {
phase_per_symbol = (int16_t*)gNB->pusch_vars[ulsch_id]->ptrs_phase_per_slot[aarx]; phase_per_symbol = (int16_t*)gNB->pusch_vars[ulsch_id]->ptrs_phase_per_slot[aarx];
/* set the previous estimations to zero at first symbol */
if(symbol == rel15_ul->start_symbol_index)
{
memset(phase_per_symbol,0,sizeof(int32_t)*frame_parms->symbols_per_slot);
}
/* if not PTRS symbol set current ptrs symbol index to zero*/ /* if not PTRS symbol set current ptrs symbol index to zero*/
gNB->pusch_vars[ulsch_id]->ptrs_symbol_index = 0; gNB->pusch_vars[ulsch_id]->ptrs_symbol_index = 0;
gNB->pusch_vars[ulsch_id]->ptrs_sc_per_ofdm_symbol = 0; gNB->pusch_vars[ulsch_id]->ptrs_sc_per_ofdm_symbol = 0;