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srsLTE
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Fine tune in cell measurement

This commit is contained in:
ismagom 2014-12-16 15:15:03 +00:00
parent f6e4aa18c8
commit f067d98482
4 changed files with 8 additions and 5 deletions
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4
lte/examples/cell_measurement.c
View File

@ -42,12 +42,12 @@
#include "cuhd_utils.h"
#define B210_DEFAULT_GAIN 40.0
#define B210_DEFAULT_GAIN_CORREC 80.0 // Gain of the Rx chain when the gain is set to 40
#define B210_DEFAULT_GAIN_CORREC 110.0 // Gain of the Rx chain when the gain is set to 40
float gain_offset = B210_DEFAULT_GAIN_CORREC;
cell_search_cfg_t cell_detect_config = {
500, // maximum number of frames to receive for MIB decoding
5000, // maximum number of frames to receive for MIB decoding
50, // maximum number of frames to receive for PSS correlation
9.0 // early-stops cell detection if mean PSR is above this value
};

3
lte/examples/pdsch_ue.c
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@ -48,12 +48,13 @@ void do_plots(ue_dl_t *q, uint32_t sf_idx, ue_sync_t *qs);
#define B210_DEFAULT_GAIN 40.0
#define B210_DEFAULT_GAIN_CORREC 80.0 // Gain of the Rx chain when the gain is set to 40
#define B210_DEFAULT_GAIN_CORREC 110.0 // Gain of the Rx chain when the gain is set to 40
float gain_offset = B210_DEFAULT_GAIN_CORREC;
cell_search_cfg_t cell_detect_config = {
5000,
100, // nof_frames_total
4.0 // threshold
};

2
lte/phy/lib/ue/src/ue_mib.c
View File

@ -214,7 +214,9 @@ int ue_mib_sync_decode(ue_mib_sync_t * q,
break;
} else if (ue_sync_get_sfidx(&q->ue_sync) == 0) {
if (ret == 1) {
ue_mib_reset(&q->ue_mib);
mib_ret = ue_mib_decode(&q->ue_mib, sf_buffer, bch_payload, nof_tx_ports, sfn_offset);
} else {
INFO("Resetting PBCH decoder after %d frames\n", q->ue_mib.frame_cnt);
ue_mib_reset(&q->ue_mib);

4
lte/phy/lib/ue/src/ue_sync.c
View File

@ -42,7 +42,7 @@ cf_t dummy[MAX_TIME_OFFSET];
#define TRACK_MAX_LOST 10
#define TRACK_FRAME_SIZE 32
#define FIND_NOF_AVG_FRAMES 4
#define FIND_NOF_AVG_FRAMES 2
int ue_sync_init(ue_sync_t *q,
lte_cell_t cell,
@ -119,7 +119,7 @@ int ue_sync_init(ue_sync_t *q,
sync_set_em_alpha(&q->sfind, 1);
q->nof_avg_find_frames = 1;
sync_set_threshold(&q->sfind, 2.0);
sync_set_threshold(&q->strack, 1.4);
sync_set_threshold(&q->strack, 1.2);
/* Correct CFO in the find state but not in the track state, since is called only
* 1 every 5 subframes. Will do it in the ue_sync_get_buffer() function.