mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
/*
|
|
* Copyright 2013-2019 Software Radio Systems Limited
|
|
*
|
|
* This file is part of srsLTE.
|
|
*
|
|
* srsLTE is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* srsLTE is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* A copy of the GNU Affero General Public License can be found in
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
* and at http://www.gnu.org/licenses/.
|
|
*
|
|
*/
|
|
|
|
#ifndef SRSLTE_REFSIGNAL_DL_SYNC_H_
|
|
#define SRSLTE_REFSIGNAL_DL_SYNC_H_
|
|
|
|
#include <srslte/phy/ch_estimation/refsignal_dl.h>
|
|
#include <srslte/phy/dft/ofdm.h>
|
|
#include <srslte/phy/utils/convolution.h>
|
|
|
|
typedef struct {
|
|
srslte_refsignal_t refsignal;
|
|
srslte_ofdm_t ifft;
|
|
cf_t* ifft_buffer_in;
|
|
cf_t* ifft_buffer_out;
|
|
cf_t* sequences[SRSLTE_NOF_SF_X_FRAME];
|
|
cf_t* correlation;
|
|
srslte_conv_fft_cc_t conv_fft_cc;
|
|
|
|
// Results
|
|
bool found;
|
|
float rsrp_dBfs;
|
|
float rssi_dBfs;
|
|
float rsrq_dB;
|
|
float cfo_Hz;
|
|
uint32_t peak_index;
|
|
} srslte_refsignal_dl_sync_t;
|
|
|
|
SRSLTE_API int srslte_refsignal_dl_sync_init(srslte_refsignal_dl_sync_t* q);
|
|
|
|
SRSLTE_API int srslte_refsignal_dl_sync_set_cell(srslte_refsignal_dl_sync_t* q, srslte_cell_t cell);
|
|
|
|
SRSLTE_API void srslte_refsignal_dl_sync_free(srslte_refsignal_dl_sync_t* q);
|
|
|
|
SRSLTE_API void srslte_refsignal_dl_sync_run(srslte_refsignal_dl_sync_t* q, cf_t* buffer, uint32_t nsamples);
|
|
|
|
SRSLTE_API void srslte_refsignal_dl_sync_measure_sf(
|
|
srslte_refsignal_dl_sync_t* q, cf_t* buffer, uint32_t sf_idx, float* rsrp, float* rssi, float* cfo);
|
|
|
|
#endif // SRSLTE_REFSIGNAL_DL_SYNC_H_
|