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/*
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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: ra_nr.h
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*
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* Description: Implements Resource allocation Procedures common in for DL and UL
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*
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* Reference: 3GPP TS 38.214 version 15.10.0
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*****************************************************************************/
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#ifndef SRSLTE_RA_NR_H
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#define SRSLTE_RA_NR_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "srslte/config.h"
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#include "srslte/phy/common/phy_common_nr.h"
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#include "srslte/phy/phch/pdsch_cfg_nr.h"
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/**
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* @brief Determines the number of resource elements available for a given PDSCH transmission
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* @param pdsch_cfg PDSCH configuration provided by higher layers
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* @param grant The given PDSCH transmission grant
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* @return The number of resource elements if the provided configuration is valid, otherwise SRSLTE_ERROR code
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*/
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SRSLTE_API int srslte_ra_dl_nr_slot_nof_re(const srslte_pdsch_cfg_nr_t* pdsch_cfg,
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const srslte_pdsch_grant_nr_t* grant);
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/**
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* @brief Calculates shared channel TBS
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* @param N_re Number of resource elements
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* @param S TB scaling, used in rare occasions. Set to 1, 0, NAN or INF if unused.
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* @param R Target Rate
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* @param Qm Modulation level
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* @param nof_layers Number of layers
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* @return The transport block size
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*/
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SRSLTE_API uint32_t srslte_ra_nr_tbs(uint32_t N_re, double S, double R, uint32_t Qm, uint32_t nof_layers);
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SRSLTE_API int srslte_ra_nr_fill_tb(const srslte_pdsch_cfg_nr_t* pdsch_cfg,
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const srslte_pdsch_grant_nr_t* grant,
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uint32_t mcs_idx,
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srslte_sch_tb_t* tb);
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#endif // SRSLTE_RA_NR_H
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