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53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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/**********************************************************************************************
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* File: dft_precoding.h
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*
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* Description: DFT-based transform precoding object.
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* Used in generation of uplink SCFDMA signals.
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*
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* Reference: 3GPP TS 36.211 version 10.0.0 Release 10 Sec. 5.3.3
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*********************************************************************************************/
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#ifndef SRSRAN_DFT_PRECODING_H
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#define SRSRAN_DFT_PRECODING_H
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#include "srsran/config.h"
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#include "srsran/phy/common/phy_common.h"
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#include "srsran/phy/dft/dft.h"
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/* DFT-based Transform Precoding object */
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typedef struct SRSRAN_API {
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uint32_t max_prb;
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srsran_dft_plan_t dft_plan[SRSRAN_MAX_PRB + 1];
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} srsran_dft_precoding_t;
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SRSRAN_API int srsran_dft_precoding_init(srsran_dft_precoding_t* q, uint32_t max_prb, bool is_tx);
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SRSRAN_API int srsran_dft_precoding_init_tx(srsran_dft_precoding_t* q, uint32_t max_prb);
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SRSRAN_API int srsran_dft_precoding_init_rx(srsran_dft_precoding_t* q, uint32_t max_prb);
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SRSRAN_API void srsran_dft_precoding_free(srsran_dft_precoding_t* q);
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SRSRAN_API bool srsran_dft_precoding_valid_prb(uint32_t nof_prb);
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SRSRAN_API uint32_t srsran_dft_precoding_get_valid_prb(uint32_t nof_prb);
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SRSRAN_API int
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srsran_dft_precoding(srsran_dft_precoding_t* q, cf_t* input, cf_t* output, uint32_t nof_prb, uint32_t nof_symbols);
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#endif // SRSRAN_DFT_PRECODING_H
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