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To use some casts to c16_t

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This commit is contained in:
Roberto Louro Magueta
2022-07-05 17:17:40 +01:00
parent 52f6d38a34
commit dadadb7291
2 changed files with 10 additions and 10 deletions
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openair1/PHY/NR_ESTIMATION/nr_measurements_gNB.c
+2 -2
View File
@@ -75,8 +75,8 @@ int nr_est_timing_advance_srs(const NR_DL_FRAME_PARMS *frame_parms,
for (int i = 0; i < frame_parms->ofdm_symbol_size; i++) { for (int i = 0; i < frame_parms->ofdm_symbol_size; i++) {
int temp = 0; int temp = 0;
for (int aa = 0; aa < frame_parms->nb_antennas_rx; aa++) { for (int aa = 0; aa < frame_parms->nb_antennas_rx; aa++) {
int Re = ((int16_t*)srs_estimated_channel_time[aa])[(i<<1)]; int Re = ((c16_t*)srs_estimated_channel_time[aa])[i].r;
int Im = ((int16_t*)srs_estimated_channel_time[aa])[1+(i<<1)]; int Im = ((c16_t*)srs_estimated_channel_time[aa])[i].i;
temp += (Re*Re/2) + (Im*Im/2); temp += (Re*Re/2) + (Im*Im/2);
} }
if (temp > max_val) { if (temp > max_val) {
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+8 -8
View File
@@ -999,11 +999,11 @@ int nr_srs_channel_estimation(const PHY_VARS_gNB *gNB,
for(int sc_idx = 0; sc_idx < nr_srs_info->sc_list_length; sc_idx++) { for(int sc_idx = 0; sc_idx < nr_srs_info->sc_list_length; sc_idx++) {
int16_t generated_real = srs_generated_signal[nr_srs_info->sc_list[sc_idx]] & 0xFFFF; int16_t generated_real = ((c16_t*)srs_generated_signal)[nr_srs_info->sc_list[sc_idx]].r;
int16_t generated_imag = (srs_generated_signal[nr_srs_info->sc_list[sc_idx]] >> 16) & 0xFFFF; int16_t generated_imag = ((c16_t*)srs_generated_signal)[nr_srs_info->sc_list[sc_idx]].i;
int16_t received_real = srs_received_signal[ant][nr_srs_info->sc_list[sc_idx]] & 0xFFFF; int16_t received_real = ((c16_t*)srs_received_signal[ant])[nr_srs_info->sc_list[sc_idx]].r;
int16_t received_imag = (srs_received_signal[ant][nr_srs_info->sc_list[sc_idx]] >> 16) & 0xFFFF; int16_t received_imag = ((c16_t*)srs_received_signal[ant])[nr_srs_info->sc_list[sc_idx]].i;
// We know that nr_srs_info->srs_generated_signal_bits bits are enough to represent the generated_real and generated_imag. // We know that nr_srs_info->srs_generated_signal_bits bits are enough to represent the generated_real and generated_imag.
// So we only need a nr_srs_info->srs_generated_signal_bits shift to ensure that the result fits into 16 bits. // So we only need a nr_srs_info->srs_generated_signal_bits shift to ensure that the result fits into 16 bits.
@@ -1074,10 +1074,10 @@ int nr_srs_channel_estimation(const PHY_VARS_gNB *gNB,
// Compute noise // Compute noise
for(int sc_idx = 0; sc_idx < nr_srs_info->sc_list_length; sc_idx++) { for(int sc_idx = 0; sc_idx < nr_srs_info->sc_list_length; sc_idx++) {
ch_real[ant*nr_srs_info->sc_list_length + sc_idx] = (int16_t)(srs_estimated_channel_freq[ant][nr_srs_info->sc_list[sc_idx]] & 0xFFFF); ch_real[ant*nr_srs_info->sc_list_length + sc_idx] = ((c16_t*)srs_estimated_channel_freq[ant])[nr_srs_info->sc_list[sc_idx]].r;
ch_imag[ant*nr_srs_info->sc_list_length + sc_idx] = (int16_t)((srs_estimated_channel_freq[ant][nr_srs_info->sc_list[sc_idx]] >> 16) & 0xFFFF); ch_imag[ant*nr_srs_info->sc_list_length + sc_idx] = ((c16_t*)srs_estimated_channel_freq[ant])[nr_srs_info->sc_list[sc_idx]].i;
noise_real[ant*nr_srs_info->sc_list_length + sc_idx] = abs((int16_t)(srs_ls_estimated_channel[ant][nr_srs_info->sc_list[sc_idx]] & 0xFFFF) - ch_real[ant*nr_srs_info->sc_list_length + sc_idx]); noise_real[ant*nr_srs_info->sc_list_length + sc_idx] = abs(((c16_t*)srs_ls_estimated_channel[ant])[nr_srs_info->sc_list[sc_idx]].r - ch_real[ant*nr_srs_info->sc_list_length + sc_idx]);
noise_imag[ant*nr_srs_info->sc_list_length + sc_idx] = abs((int16_t)((srs_ls_estimated_channel[ant][nr_srs_info->sc_list[sc_idx]] >> 16) & 0xFFFF) - ch_imag[ant*nr_srs_info->sc_list_length + sc_idx]); noise_imag[ant*nr_srs_info->sc_list_length + sc_idx] = abs(((c16_t*)srs_ls_estimated_channel[ant])[nr_srs_info->sc_list[sc_idx]].i - ch_imag[ant*nr_srs_info->sc_list_length + sc_idx]);
} }
// Convert to time domain // Convert to time domain