mirror of https://github.com/PentHertz/srsLTE.git
73 lines
3.0 KiB
C
73 lines
3.0 KiB
C
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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 ue_dl_nr.h
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*
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* Description: UE downlink object for NR dataplane.
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*
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* This module is a frontend to all the downlink data channel processing modules.
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*
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* Reference:
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*****************************************************************************/
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#ifndef SRSLTE_UE_DL_NR_DATA_H
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#define SRSLTE_UE_DL_NR_DATA_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 Calculates the PDSCH time resource provided by higher layers
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*
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* @remark Defined by TS 36.214 V15.10.0 section 5.1.2.1.1 Determination of the resource allocation table to be used for
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* PDSCH
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*
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* @param pdsch_alloc Flattened PHY PDSCH allocation configuration provided from higher layers
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* @param[out] S Start symbol
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* @param[out] L PDSCH transmission length in symbols
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* @return Returns SRSLTE_SUCCESS if the provided allocation is valid, otherwise it returns SRSLTE_ERROR code
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*/
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SRSLTE_API int
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srslte_ue_dl_nr_pdsch_time_resource_hl(const srslte_pdsch_allocation_t* pdsch_alloc, uint32_t* S, uint32_t* L);
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/**
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* @brief Calculates the PDSCH time resource default A. This can be used by SI-RNTI, RA-RNTI, P-RNTI and C-RNTI. See
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* Table 5.1.2.1.1-1 for more details about the usage.
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*
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* @remark Defined by TS 36.214 V15.10.0 Table 5.1.2.1.1-2: Default PDSCH time domain resource allocation A for normal
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* CP
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*
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* @attention k0 shall be zero.
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*
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* @param m Time domain resource assignment field value m of the DCI
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* @param dmrs_typeA_pos DMRS TypeA position provided by higher layers
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* @param[out] S Start symbol
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* @param[out] L PDSCH transmission length in symbols
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* @return Returns SRSLTE_SUCCESS if the provided allocation is valid, otherwise it returns SRSLTE_ERROR code
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*/
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SRSLTE_API int srslte_ue_dl_nr_pdsch_time_resource_default_A(uint32_t m,
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srslte_dmrs_pdsch_typeA_pos_t dmrs_typeA_pos,
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uint32_t* S,
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uint32_t* L);
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#endif // SRSLTE_UE_DL_NR_DATA_H
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