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OpenXG-RAN
Commit 3874e934 authored by Mario Hudon's avatar Mario Hudon
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Added support of PRACH on start symbol != 0 on the UE

parent b0b5825c
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Showing with 4 additions and 3 deletions
openair1/PHY/NR_UE_TRANSPORT/nr_prach.c
View file @ 3874e934
......@@ -72,7 +72,7 @@ int32_t generate_nr_prach(PHY_VARS_NR_UE *ue, uint8_t gNB_id, uint8_t slot){
int16_t Ncp = 0, amp, *prach, *prach2, *prachF, *Xu;
int32_t Xu_re, Xu_im;
int prach_start, prach_sequence_length, i, prach_len, dftlen, mu, kbar, K, n_ra_prb, k;
int prach_start, prach_sequence_length, i, prach_len, dftlen, mu, kbar, K, n_ra_prb, k, prachStartSymbol, sample_offset_slot;
//int restricted_Type;
prach = prach_tmp;
......@@ -95,7 +95,7 @@ int32_t generate_nr_prach(PHY_VARS_NR_UE *ue, uint8_t gNB_id, uint8_t slot){
kbar = 1;
K = 24;
k = 12*n_ra_prb - 6*fp->N_RB_UL;
//prachStartSymbol = prach_config_pdu->prach_start_symbol
prachStartSymbol = prach_pdu->prach_start_symbol;
//restricted_Type = 0;
compute_nr_prach_seq(nrUE_config->prach_config.prach_sequence_length,
......@@ -103,7 +103,8 @@ int32_t generate_nr_prach(PHY_VARS_NR_UE *ue, uint8_t gNB_id, uint8_t slot){
nrUE_config->prach_config.num_prach_fd_occasions_list[fd_occasion].prach_root_sequence_index,
ue->X_u);
prach_start = fp->get_samples_slot_timestamp(slot, fp, 0);
sample_offset_slot = (prachStartSymbol==0?0:fp->ofdm_symbol_size*prachStartSymbol+fp->nb_prefix_samples0+fp->nb_prefix_samples*(prachStartSymbol-1));
prach_start = fp->get_samples_slot_timestamp(slot, fp, 0) + sample_offset_slot;
// First compute physical root sequence
/************************************************************************
......
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