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Minor clean-ups regarding PTRS

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This commit is contained in:
Ahmed Hussein
2020-04-15 18:48:03 +02:00
parent c878bbcc78
commit e9dd51a746
4 changed files with 9 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/NR_REFSIG/ptrs_nr.c
+7 -14
View File
@@ -119,7 +119,7 @@ uint8_t get_K_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint16_t N_RB) {
* duration_in_symbols number of scheduled PUSCH ofdm symbols
* start_symbol first ofdm symbol of PUSCH within slot
* L_ptrs the parameter L_ptrs
* ofdm_symbol_size FFT size
* ul_dmrs_symb_pos bitmap of the time domain positions of the DMRS symbols in the scheduled PUSCH
*
* RETURN : sets the bit map of PTRS ofdm symbol indicies
*
@@ -205,7 +205,6 @@ uint8_t get_L_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint8_t I_mcs) {
* N_RB number of RBs scheduled for PUSCH
* k_RE_ref the parameter k_RE_ref
* start_sc first subcarrier index
* ofdm_symbol_size FFT size
*
* RETURN : 1 if subcarrier k is PTRS, or 0 otherwise
*
@@ -213,11 +212,9 @@ uint8_t get_L_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint8_t I_mcs) {
*
*********************************************************************/
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) {
uint16_t k_RB_ref, i, sc;
i = 0;
sc = 0;
k_RB_ref = 0;
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 k_RB_ref;
if (N_RB % K_ptrs == 0)
k_RB_ref = n_rnti % K_ptrs;
@@ -227,7 +224,7 @@ uint8_t is_ptrs_subcarrier(uint16_t k, uint8_t K_ptrs, uint16_t n_rnti, uint16_t
if (k < (k_RE_ref + k_RB_ref*NR_NB_SC_PER_RB + start_sc))
return 0;
if ((k-k_RE_ref - k_RB_ref*NR_NB_SC_PER_RB - start_sc)%(K_ptrs*NR_NB_SC_PER_RB) == 0)
if ((k - k_RE_ref - k_RB_ref*NR_NB_SC_PER_RB - start_sc) % (K_ptrs*NR_NB_SC_PER_RB) == 0)
return 1;
return 0;
@@ -241,12 +238,10 @@ uint8_t is_ptrs_subcarrier(uint16_t k, uint8_t K_ptrs, uint16_t n_rnti, uint16_t
* k subcarrier index
* n_rnti UE CRNTI
* N_RB number of RBs scheduled for PUSCH
* duration_in_symbols number of scheduled PUSCH ofdm symbols
* dmrs_antenna_port DMRS antenna port
* K_ptrs the parameter K_ptrs
* ptrs_symbols bit mask of ptrs
* start_sc first subcarrier index
* ofdm_symbol_size FFT size
* pusch_dmrs_type PUSCH DMRS type (1 or 2)
* ptrs_UplinkConfig PTRS uplink configuration
*
@@ -260,17 +255,15 @@ uint8_t is_ptrs_symbol(uint8_t l,
uint16_t k,
uint16_t n_rnti,
uint16_t N_RB,
uint8_t duration_in_symbols,
uint8_t dmrs_antenna_port,
uint8_t K_ptrs,
uint16_t ptrs_symbols,
uint16_t start_sc,
uint16_t ofdm_symbol_size,
pusch_dmrs_type_t pusch_dmrs_type,
uint8_t pusch_dmrs_type,
uint8_t resourceElementOffset)
{
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);
uint8_t is_ptrs_freq = is_ptrs_subcarrier(k, K_ptrs, n_rnti, N_RB, k_RE_ref, start_sc);
if (is_ptrs_freq == 0)
return 0;
openair1/PHY/NR_REFSIG/ptrs_nr.h
+2 -4
View File
@@ -59,19 +59,17 @@ void set_ptrs_symb_idx(uint16_t *ptrs_symbols,
uint8_t get_L_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint8_t I_mcs);
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, uint8_t K_ptrs, uint16_t n_rnti, uint16_t N_RB, int16_t k_RE_ref, uint16_t start_sc);
uint8_t is_ptrs_symbol(uint8_t l,
uint16_t k,
uint16_t n_rnti,
uint16_t N_RB,
uint8_t duration_in_symbols,
uint8_t dmrs_antenna_port,
uint8_t K_ptrs,
uint16_t ptrs_symbols,
uint16_t start_sc,
uint16_t ofdm_symbol_size,
pusch_dmrs_type_t pusch_dmrs_type,
uint8_t pusch_dmrs_type,
uint8_t resourceElementOffset);
openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
-4
View File
@@ -289,12 +289,10 @@ void nr_ulsch_extract_rbs_single(int32_t **rxdataF,
(start_re + re)%frame_parms->ofdm_symbol_size,
n_rnti,
pusch_pdu->rb_size,
pusch_pdu->nr_of_symbols,
aarx,
K_ptrs,
pusch_vars->ptrs_symbols,
start_re,
frame_parms->ofdm_symbol_size,
pusch_pdu->dmrs_config_type,
pusch_pdu->pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset);
@@ -1073,12 +1071,10 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB,
0,
rel15_ul->rnti,
rel15_ul->rb_size,
rel15_ul->nr_of_symbols,
0,
(rel15_ul->pusch_ptrs.ptrs_freq_density)?4:2,
gNB->pusch_vars[UE_id]->ptrs_symbols,
0,
frame_parms->ofdm_symbol_size,
rel15_ul->dmrs_config_type,
rel15_ul->pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset);
}
openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c
-2
View File
@@ -400,12 +400,10 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
k,
rnti,
nb_rb,
number_of_symbols,
ap,
K_ptrs,
ulsch_ue->ptrs_symbols,
start_sc,
frame_parms->ofdm_symbol_size,
dmrs_type,
ptrs_Uplink_Config->resourceElementOffset);
}