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srsRAN_4G
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Fixed incorrect ema and threshold for sync

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master
ismagom 9 years ago
parent c57441d3f7
commit 9693aa5c35
2 changed files with 12 additions and 12 deletions
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2
srslte/lib/sync/src/pss.c
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@ -303,7 +303,7 @@ int srslte_pss_synch_find_pss(srslte_pss_synch_t *q, cf_t *input, float *corr_pe
}
/* Correlate input with PSS sequence */
if (q->frame_size > 2*q->fft_size) {
if (q->frame_size >= q->fft_size) {
#ifdef CONVOLUTION_FFT
memcpy(q->tmp_input, input, q->frame_size * sizeof(cf_t));

22
srslte/lib/ue/src/ue_sync.c
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@ -41,8 +41,8 @@
#define MAX_TIME_OFFSET 128
cf_t dummy[MAX_TIME_OFFSET];
#define TRACK_MAX_LOST 10
#define TRACK_FRAME_SIZE 16
#define TRACK_MAX_LOST 4
#define TRACK_FRAME_SIZE 32
#define FIND_NOF_AVG_FRAMES 2
#define SAMPLE_OFFSET_MEAN_LEN 100
@ -160,7 +160,7 @@ int srslte_ue_sync_init(srslte_ue_sync_t *q,
goto clean_exit;
}
} else {
if(srslte_sync_init(&q->strack, q->frame_len, 3*SRSLTE_CP_LEN_NORM(1,q->fft_size), q->fft_size)) {
if(srslte_sync_init(&q->strack, q->frame_len, 2*SRSLTE_CP_LEN_NORM(1,q->fft_size), q->fft_size)) {
fprintf(stderr, "Error initiating sync track\n");
goto clean_exit;
}
@ -172,10 +172,10 @@ int srslte_ue_sync_init(srslte_ue_sync_t *q,
srslte_sync_cp_en(&q->strack, true);
srslte_sync_set_cfo_ema_alpha(&q->sfind, 0.9);
srslte_sync_set_cfo_ema_alpha(&q->strack, 0.2);
srslte_sync_set_cfo_ema_alpha(&q->strack, 0.4);
srslte_sync_cfo_i_detec_en(&q->sfind, false);
srslte_sync_cfo_i_detec_en(&q->strack, false);
srslte_sync_cfo_i_detec_en(&q->sfind, true);
srslte_sync_cfo_i_detec_en(&q->strack, true);
srslte_sync_set_threshold(&q->sfind, 1.5);
q->nof_avg_find_frames = FIND_NOF_AVG_FRAMES;
@ -189,10 +189,10 @@ int srslte_ue_sync_init(srslte_ue_sync_t *q,
srslte_sync_cp_en(&q->sfind, false);
srslte_sync_cp_en(&q->strack, false);
srslte_sync_cfo_i_detec_en(&q->sfind, false);
srslte_sync_cfo_i_detec_en(&q->strack, false);
srslte_sync_cfo_i_detec_en(&q->sfind, true);
srslte_sync_cfo_i_detec_en(&q->strack, true);
srslte_sync_set_cfo_ema_alpha(&q->sfind, 0.7);
srslte_sync_set_cfo_ema_alpha(&q->sfind, 0.9);
srslte_sync_set_cfo_ema_alpha(&q->strack, 0.01);
/* In find phase and if the cell is known, do not average pss correlation
@ -202,8 +202,8 @@ int srslte_ue_sync_init(srslte_ue_sync_t *q,
srslte_sync_set_em_alpha(&q->sfind, 1);
srslte_sync_set_threshold(&q->sfind, 4.0);
srslte_sync_set_em_alpha(&q->strack, 1.3);
srslte_sync_set_threshold(&q->strack, 0.001);
srslte_sync_set_em_alpha(&q->strack, 0.1);
srslte_sync_set_threshold(&q->strack, 1.3);
}

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