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Commit 9b52bf29 authored by Ahmed Hussein's avatar Ahmed Hussein
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Separating "is_ptrs_subcarrier" from "is_ptrs_symbol"

parent f8c0de63
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Showing with 51 additions and 81 deletions
openair1/PHY/NR_REFSIG/ptrs_nr.c
View file @ 9b52bf29
...@@ -139,11 +139,14 @@ void set_ptrs_symb_idx(uint16_t *ptrs_symbols, ...@@ -139,11 +139,14 @@ void set_ptrs_symb_idx(uint16_t *ptrs_symbols,
* NAME : is_ptrs_subcarrier * NAME : is_ptrs_subcarrier
* *
* PARAMETERS : k subcarrier index * PARAMETERS : k subcarrier index
* K_ptrs the parameter K_ptrs
* n_rnti UE CRNTI * n_rnti UE CRNTI
* dmrs_antenna_port DMRS antenna port
* K_ptrs the parameter K_ptrs
* pusch_dmrs_type the DMRS configuration type used for PUSCH
* N_RB number of RBs scheduled for PUSCH * N_RB number of RBs scheduled for PUSCH
* k_RE_ref the parameter k_RE_ref * k_RE_ref the parameter k_RE_ref
* start_sc first subcarrier index * start_sc first subcarrier index
* ofdm_symbol_size number of samples in an OFDM symbol
* *
* RETURN : 1 if subcarrier k is PTRS, or 0 otherwise * RETURN : 1 if subcarrier k is PTRS, or 0 otherwise
* *
...@@ -151,8 +154,17 @@ void set_ptrs_symb_idx(uint16_t *ptrs_symbols, ...@@ -151,8 +154,17 @@ void set_ptrs_symb_idx(uint16_t *ptrs_symbols,
* *
*********************************************************************/ *********************************************************************/
uint8_t is_ptrs_subcarrier(uint16_t k, uint8_t K_ptrs, uint16_t n_rnti, uint16_t N_RB, int16_t k_RE_ref, uint16_t start_sc, uint16_t ofdm_symbol_size) { uint8_t is_ptrs_subcarrier(uint16_t k,
uint16_t n_rnti,
uint8_t dmrs_antenna_port,
uint8_t pusch_dmrs_type,
uint8_t K_ptrs,
uint16_t N_RB,
uint8_t k_RE_ref,
uint16_t start_sc,
uint16_t ofdm_symbol_size)
{
// int16_t k_RE_ref = get_kRE_ref(dmrs_antenna_port, pusch_dmrs_type, resourceElementOffset);
uint16_t k_RB_ref; uint16_t k_RB_ref;
if (N_RB % K_ptrs == 0) if (N_RB % K_ptrs == 0)
...@@ -174,39 +186,16 @@ uint8_t is_ptrs_subcarrier(uint16_t k, uint8_t K_ptrs, uint16_t n_rnti, uint16_t ...@@ -174,39 +186,16 @@ uint8_t is_ptrs_subcarrier(uint16_t k, uint8_t K_ptrs, uint16_t n_rnti, uint16_t
* NAME : is_ptrs_symbol * NAME : is_ptrs_symbol
* *
* PARAMETERS : l ofdm symbol index within slot * PARAMETERS : l ofdm symbol index within slot
* k subcarrier index
* n_rnti UE CRNTI
* N_RB number of RBs scheduled for PUSCH
* dmrs_antenna_port DMRS antenna port
* K_ptrs the parameter K_ptrs
* ptrs_symbols bit mask of ptrs * ptrs_symbols bit mask of ptrs
* start_sc first subcarrier index
* pusch_dmrs_type PUSCH DMRS type (1 or 2)
* ptrs_UplinkConfig PTRS uplink configuration
* *
* RETURN : 0 if symbol(k,l) is data, or 1 if symbol(k,l) is ptrs * RETURN : 1 if symbol is ptrs, or 0 otherwise
* *
* DESCRIPTION : 3GPP TS 38.211 6.4.1.2 Phase-tracking reference signal for PUSCH * DESCRIPTION : 3GPP TS 38.211 6.4.1.2 Phase-tracking reference signal for PUSCH
* *
*********************************************************************/ *********************************************************************/
uint8_t is_ptrs_symbol(uint8_t l, uint8_t is_ptrs_symbol(uint8_t l, uint16_t ptrs_symbols)
uint16_t k,
uint16_t n_rnti,
uint16_t N_RB,
uint8_t dmrs_antenna_port,
uint8_t K_ptrs,
uint16_t ptrs_symbols,
uint16_t start_sc,
uint8_t pusch_dmrs_type,
uint8_t k_RE_ref,
uint16_t ofdm_symbol_size)
{ {
// int16_t k_RE_ref = get_kRE_ref(dmrs_antenna_port, pusch_dmrs_type, resourceElementOffset);
uint8_t is_ptrs_freq = is_ptrs_subcarrier(k, K_ptrs, n_rnti, N_RB, k_RE_ref, start_sc, ofdm_symbol_size);
if (is_ptrs_freq == 0)
return 0;
if (((ptrs_symbols>>l)&1) == 1) if (((ptrs_symbols>>l)&1) == 1)
return 1; return 1;
......
openair1/PHY/NR_REFSIG/ptrs_nr.h
View file @ 9b52bf29
...@@ -55,19 +55,17 @@ void set_ptrs_symb_idx(uint16_t *ptrs_symbols, ...@@ -55,19 +55,17 @@ void set_ptrs_symb_idx(uint16_t *ptrs_symbols,
uint8_t L_ptrs, uint8_t L_ptrs,
uint16_t ul_dmrs_symb_pos); uint16_t ul_dmrs_symb_pos);
uint8_t is_ptrs_subcarrier(uint16_t k, uint8_t K_ptrs, uint16_t n_rnti, uint16_t N_RB, int16_t k_RE_ref, uint16_t start_sc, uint16_t ofdm_symbol_size); uint8_t is_ptrs_subcarrier(uint16_t k,
uint16_t n_rnti,
uint8_t is_ptrs_symbol(uint8_t l, uint8_t dmrs_antenna_port,
uint16_t k, uint8_t pusch_dmrs_type,
uint16_t n_rnti, uint8_t K_ptrs,
uint16_t N_RB, uint16_t N_RB,
uint8_t dmrs_antenna_port, uint8_t k_RE_ref,
uint8_t K_ptrs, uint16_t start_sc,
uint16_t ptrs_symbols, uint16_t ofdm_symbol_size);
uint16_t start_sc,
uint8_t pusch_dmrs_type, uint8_t is_ptrs_symbol(uint8_t l, uint16_t ptrs_symbols);
uint8_t k_RE_ref,
uint16_t ofdm_symbol_size);
......
openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
View file @ 9b52bf29
...@@ -285,18 +285,16 @@ void nr_ulsch_extract_rbs_single(int32_t **rxdataF, ...@@ -285,18 +285,16 @@ void nr_ulsch_extract_rbs_single(int32_t **rxdataF,
is_dmrs_re = 0; is_dmrs_re = 0;
if ( ((pusch_pdu->pdu_bit_map)>>2)& 0x01 ) { if ( ((pusch_pdu->pdu_bit_map)>>2)& 0x01 ) {
if(is_ptrs_symbol(symbol, pusch_vars->ptrs_symbols))
is_ptrs_symbol_flag = is_ptrs_symbol(symbol, is_ptrs_symbol_flag = is_ptrs_subcarrier((start_re + re) % frame_parms->ofdm_symbol_size,
(start_re + re) % frame_parms->ofdm_symbol_size, n_rnti,
n_rnti, aarx,
pusch_pdu->rb_size, pusch_pdu->dmrs_config_type,
aarx, K_ptrs,
K_ptrs, pusch_pdu->rb_size,
pusch_vars->ptrs_symbols, pusch_pdu->pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset,
start_re, start_re,
pusch_pdu->dmrs_config_type, frame_parms->ofdm_symbol_size);
pusch_pdu->pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset,
frame_parms->ofdm_symbol_size);
if (is_ptrs_symbol_flag == 1) if (is_ptrs_symbol_flag == 1)
num_ptrs_symbols++; num_ptrs_symbols++;
...@@ -1026,7 +1024,7 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB, ...@@ -1026,7 +1024,7 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB,
unsigned char harq_pid) unsigned char harq_pid)
{ {
uint8_t first_symbol_flag, aarx, aatx, dmrs_symbol_flag, ptrs_symbol_flag; // dmrs_symbol_flag, a flag to indicate DMRS REs in current symbol uint8_t first_symbol_flag, aarx, aatx, dmrs_symbol_flag; // dmrs_symbol_flag, a flag to indicate DMRS REs in current symbol
uint32_t nb_re_pusch, bwp_start_subcarrier; uint32_t nb_re_pusch, bwp_start_subcarrier;
uint8_t L_ptrs = 0; // PTRS parameter uint8_t L_ptrs = 0; // PTRS parameter
int avgs; int avgs;
...@@ -1035,7 +1033,6 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB, ...@@ -1035,7 +1033,6 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB,
nfapi_nr_pusch_pdu_t *rel15_ul = &gNB->ulsch[UE_id][0]->harq_processes[harq_pid]->ulsch_pdu; nfapi_nr_pusch_pdu_t *rel15_ul = &gNB->ulsch[UE_id][0]->harq_processes[harq_pid]->ulsch_pdu;
dmrs_symbol_flag = 0; dmrs_symbol_flag = 0;
ptrs_symbol_flag = 0;
first_symbol_flag = 0; first_symbol_flag = 0;
gNB->pusch_vars[UE_id]->ptrs_sc_per_ofdm_symbol = 0; gNB->pusch_vars[UE_id]->ptrs_sc_per_ofdm_symbol = 0;
...@@ -1069,21 +1066,8 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB, ...@@ -1069,21 +1066,8 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB,
} }
if ( ((rel15_ul->pdu_bit_map)>>2)& 0x01 ) { // if there is ptrs pdu if ( ((rel15_ul->pdu_bit_map)>>2)& 0x01 ) { // if there is ptrs pdu
ptrs_symbol_flag = is_ptrs_symbol(symbol, if(is_ptrs_symbol(symbol, gNB->pusch_vars[UE_id]->ptrs_symbols))
0, gNB->pusch_vars[UE_id]->ptrs_symbol_index = symbol;
rel15_ul->rnti,
rel15_ul->rb_size,
0,
(rel15_ul->pusch_ptrs.ptrs_freq_density)?4:2,
gNB->pusch_vars[UE_id]->ptrs_symbols,
0,
rel15_ul->dmrs_config_type,
rel15_ul->pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset,
frame_parms->ofdm_symbol_size);
}
if (ptrs_symbol_flag == 1){
gNB->pusch_vars[UE_id]->ptrs_symbol_index = symbol;
} }
......
openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c
View file @ 9b52bf29
...@@ -396,17 +396,16 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE, ...@@ -396,17 +396,16 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
if ((harq_process_ul_ue->pusch_pdu.pdu_bit_map >> 2) & 0x01){ if ((harq_process_ul_ue->pusch_pdu.pdu_bit_map >> 2) & 0x01){
is_ptrs = is_ptrs_symbol(l, if(is_ptrs_symbol(l, ulsch_ue->ptrs_symbols))
k, is_ptrs = is_ptrs_subcarrier(k,
rnti, rnti,
nb_rb, ap,
ap, dmrs_type,
K_ptrs, K_ptrs,
ulsch_ue->ptrs_symbols, nb_rb,
start_sc, harq_process_ul_ue->pusch_pdu.pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset,
dmrs_type, start_sc,
harq_process_ul_ue->pusch_pdu.pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset, frame_parms->ofdm_symbol_size);
frame_parms->ofdm_symbol_size);
} }
if (is_dmrs == 1) { if (is_dmrs == 1) {
......
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