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OpenXG-RAN
Commit 0366be79 authored by cig's avatar cig
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Prach_start adjustment for both HW and simulation

parent cf47f059
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Showing with 6 additions and 6 deletions
openair1/PHY/NR_UE_TRANSPORT/nr_prach.c
View file @ 0366be79
...@@ -118,16 +118,16 @@ int32_t generate_nr_prach(PHY_VARS_NR_UE *ue, uint8_t gNB_id, uint8_t slot){ ...@@ -118,16 +118,16 @@ int32_t generate_nr_prach(PHY_VARS_NR_UE *ue, uint8_t gNB_id, uint8_t slot){
#if defined (OAI_USRP) #if defined (OAI_USRP)
prach_start = (ue->rx_offset + slot*samp_count - ue->hw_timing_advance - ue->N_TA_offset); prach_start = (ue->rx_offset + slot*samp_count - ue->hw_timing_advance - ue->N_TA_offset);
if (prach_start<0)
prach_start += (fp->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME);
if (prach_start >= (fp->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME))
prach_start -= (fp->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME);
#else //normal case (simulation) #else //normal case (simulation)
prach_start = slot*samp_count - ue->N_TA_offset; prach_start = slot*samp_count - ue->N_TA_offset;
#endif #endif
if (prach_start<0)
prach_start += (fp->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME);
if (prach_start >= (fp->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME))
prach_start -= (fp->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME);
// First compute physical root sequence // First compute physical root sequence
/************************************************************************ /************************************************************************
* 4G and NR NCS tables are slightly different and depend on prach format * 4G and NR NCS tables are slightly different and depend on prach format
......
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