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75 lines
3.0 KiB
C
75 lines
3.0 KiB
C
/**
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* Copyright 2013-2021 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_dl.h
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*
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* Description: Implements Resource allocation Procedures for DL defined in Section 7
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*
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* Reference: 3GPP TS 36.213 version 10.0.1 Release 10
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*****************************************************************************/
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#ifndef SRSLTE_RA_DL_H
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#define SRSLTE_RA_DL_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.h"
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#include "srslte/phy/phch/dci.h"
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#include "srslte/phy/phch/pdsch_cfg.h"
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#include "srslte/phy/phch/ra.h"
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/**************************************************
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* Structures used for Downlink Resource Allocation
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**************************************************/
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/** Functions to generate a grant from a received DCI */
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SRSLTE_API int srslte_ra_dl_dci_to_grant(const srslte_cell_t* cell,
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srslte_dl_sf_cfg_t* sf,
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srslte_tm_t tm,
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bool pdsch_use_tbs_index_alt,
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const srslte_dci_dl_t* dci,
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srslte_pdsch_grant_t* grant);
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SRSLTE_API int
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srslte_ra_dl_grant_to_grant_prb_allocation(const srslte_dci_dl_t* dci, srslte_pdsch_grant_t* grant, uint32_t nof_prb);
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/** Functions used by the eNodeB scheduler */
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SRSLTE_API uint32_t srslte_ra_dl_approx_nof_re(const srslte_cell_t* cell, uint32_t nof_prb, uint32_t nof_ctrl_symbols);
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SRSLTE_API uint32_t ra_re_x_prb(const srslte_cell_t* cell, srslte_dl_sf_cfg_t* sf, uint32_t slot, uint32_t prb_idx);
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SRSLTE_API uint32_t srslte_ra_dl_grant_nof_re(const srslte_cell_t* cell,
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srslte_dl_sf_cfg_t* sf,
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srslte_pdsch_grant_t* grant);
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/** Others */
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SRSLTE_API int srslte_dl_fill_ra_mcs(srslte_ra_tb_t* tb, int last_tbs, uint32_t nprb, bool pdsch_use_tbs_index_alt);
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SRSLTE_API void
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srslte_ra_dl_compute_nof_re(const srslte_cell_t* cell, srslte_dl_sf_cfg_t* sf, srslte_pdsch_grant_t* grant);
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SRSLTE_API uint32_t srslte_ra_dl_info(srslte_pdsch_grant_t* grant, char* info_str, uint32_t len);
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#endif // SRSLTE_RA_DL_H
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