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100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
5 years ago
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/*
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* Copyright 2013-2019 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef SRSLTE_CHEST_SL_H
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#define SRSLTE_CHEST_SL_H
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#include <stdio.h>
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#include "srslte/config.h"
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#include "srslte/phy/ch_estimation/chest_common.h"
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#include "srslte/phy/ch_estimation/refsignal_ul.h"
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#include "srslte/phy/common/phy_common.h"
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#include "srslte/phy/resampling/interp.h"
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typedef struct {
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uint32_t nof_prb;
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uint32_t sf_n_re;
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uint32_t M_sc_rs;
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int8_t nr_DMRS_symbols;
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// Orthogonal Sequence (W) Transmission Mode 1, 2 and PSBCH
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int8_t* w;
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// Cyclic Shift Values
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int8_t* n_CS;
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// Refrence Signal Cyclic Shift
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float* alpha;
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// Group Hopping Flag
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uint32_t f_gh;
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uint32_t* f_gh_pattern;
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uint32_t f_ss;
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// Sequence Group Number
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uint32_t* u;
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// Base Sequence Number - always 0 for sidelink
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uint32_t v;
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int32_t N_zc;
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int32_t* q;
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float** r;
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cf_t** r_uv;
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cf_t** r_sequence;
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cf_t** dmrs_received;
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cf_t* pilot_estimates_1;
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cf_t* pilot_estimates_2;
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cf_t* ce;
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srslte_interp_linsrslte_vec_t lin_vec_sl;
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} srslte_chest_sl_t;
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int srslte_chest_sl_gen_psbch_dmrs(
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srslte_chest_sl_t* q, srslte_sl_tm_t txMode, uint32_t nof_prb, uint32_t sf_idx, uint32_t N_sl_id);
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int srslte_chest_sl_init_psbch_dmrs(srslte_chest_sl_t* q);
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int srslte_chest_sl_put_psbch_dmrs(srslte_chest_sl_t* q, cf_t* sf_buffer, srslte_sl_tm_t tx_mode, uint32_t nof_prb);
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void srslte_chest_sl_put_pscch_dmrs(
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srslte_chest_sl_t* q, uint32_t prb_idx, uint32_t nof_prb, cf_t* sf_buffer, srslte_sl_tm_t txMode);
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void srslte_chest_sl_put_pssch_dmrs(srslte_chest_sl_t* q,
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uint32_t prb_start,
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uint32_t prb_end,
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uint32_t prb_num,
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uint32_t nof_prb,
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cf_t* sf_buffer,
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srslte_sl_tm_t txMode);
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void srslte_chest_sl_psbch_ls_estimate_equalize(srslte_chest_sl_t* q, cf_t* sf_buffer, cf_t* output, uint32_t nof_prb);
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void srslte_chest_sl_free(srslte_chest_sl_t* q);
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#endif
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