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83 lines
3.8 KiB
C
83 lines
3.8 KiB
C
/*
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* Copyright 2013-2020 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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/******************************************************************************
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* File: layermap.h
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*
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* Description: MIMO layer mapping and demapping.
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* Single antenna, tx diversity and spatial multiplexing are
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* supported.
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*
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* Reference: 3GPP TS 36.211 version 10.0.0 Release 10 Sec. 6.3.3
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*****************************************************************************/
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#ifndef SRSLTE_LAYERMAP_H
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#define SRSLTE_LAYERMAP_H
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#include "srslte/config.h"
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#include "srslte/phy/common/phy_common.h"
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/* Generates the vector of layer-mapped symbols "x" based on the vector of data symbols "d"
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*/
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SRSLTE_API int srslte_layermap_single(cf_t* d, cf_t* x, int nof_symbols);
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SRSLTE_API int srslte_layermap_diversity(cf_t* d, cf_t* x[SRSLTE_MAX_LAYERS], int nof_layers, int nof_symbols);
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SRSLTE_API int srslte_layermap_multiplex(cf_t* d[SRSLTE_MAX_CODEWORDS],
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cf_t* x[SRSLTE_MAX_LAYERS],
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int nof_cw,
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int nof_layers,
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int nof_symbols[SRSLTE_MAX_CODEWORDS]);
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SRSLTE_API int srslte_layermap_type(cf_t* d[SRSLTE_MAX_CODEWORDS],
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cf_t* x[SRSLTE_MAX_LAYERS],
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int nof_cw,
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int nof_layers,
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int nof_symbols[SRSLTE_MAX_CODEWORDS],
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srslte_tx_scheme_t type);
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/* Generates the vector of data symbols "d" based on the vector of layer-mapped symbols "x"
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*/
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SRSLTE_API int srslte_layerdemap_single(cf_t* x, cf_t* d, int nof_symbols);
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SRSLTE_API int srslte_layerdemap_diversity(cf_t* x[SRSLTE_MAX_LAYERS], cf_t* d, int nof_layers, int nof_layer_symbols);
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SRSLTE_API int srslte_layerdemap_multiplex(cf_t* x[SRSLTE_MAX_LAYERS],
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cf_t* d[SRSLTE_MAX_CODEWORDS],
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int nof_layers,
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int nof_cw,
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int nof_layer_symbols,
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int nof_symbols[SRSLTE_MAX_CODEWORDS]);
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SRSLTE_API int srslte_layerdemap_type(cf_t* x[SRSLTE_MAX_LAYERS],
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cf_t* d[SRSLTE_MAX_CODEWORDS],
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int nof_layers,
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int nof_cw,
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int nof_layer_symbols,
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int nof_symbols[SRSLTE_MAX_CODEWORDS],
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srslte_tx_scheme_t type);
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SRSLTE_API int srslte_layermap_nr(cf_t** d, int nof_cw, cf_t** x, int nof_layers, uint32_t nof_re);
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SRSLTE_API int srslte_layerdemap_nr(cf_t** d, int nof_cw, cf_t** x, int nof_layers, uint32_t nof_re);
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#endif // SRSLTE_LAYERMAP_H
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