mirror of https://github.com/PentHertz/srsLTE.git
154 lines
5.2 KiB
C
154 lines
5.2 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: pusch.h
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*
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* Description: Physical uplink shared channel.
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*
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* Reference: 3GPP TS 36.211 version 10.0.0 Release 10 Sec. 5.3
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*****************************************************************************/
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#ifndef SRSLTE_PUSCH_H
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#define SRSLTE_PUSCH_H
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#include "srslte/config.h"
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#include "srslte/phy/ch_estimation/refsignal_ul.h"
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#include "srslte/phy/common/phy_common.h"
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#include "srslte/phy/dft/dft_precoding.h"
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#include "srslte/phy/mimo/layermap.h"
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#include "srslte/phy/mimo/precoding.h"
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#include "srslte/phy/modem/demod_soft.h"
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#include "srslte/phy/modem/evm.h"
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#include "srslte/phy/modem/mod.h"
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#include "srslte/phy/phch/dci.h"
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#include "srslte/phy/phch/pusch_cfg.h"
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#include "srslte/phy/phch/regs.h"
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#include "srslte/phy/phch/sch.h"
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#include "srslte/phy/scrambling/scrambling.h"
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typedef struct {
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srslte_sequence_t seq[SRSLTE_NOF_SF_X_FRAME];
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uint32_t cell_id;
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bool sequence_generated;
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} srslte_pusch_user_t;
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/* PUSCH object */
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typedef struct SRSLTE_API {
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srslte_cell_t cell;
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bool is_ue;
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uint16_t ue_rnti;
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uint32_t max_re;
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bool llr_is_8bit;
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srslte_dft_precoding_t dft_precoding;
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/* buffers */
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// void buffers are shared for tx and rx
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cf_t* ce;
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cf_t* z;
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cf_t* d;
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void* q;
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void* g;
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/* tx & rx objects */
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srslte_modem_table_t mod[SRSLTE_MOD_NITEMS];
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srslte_sch_t ul_sch;
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// This is to generate the scrambling seq for multiple CRNTIs
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srslte_pusch_user_t** users;
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srslte_sequence_t tmp_seq;
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// EVM buffer
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srslte_evm_buffer_t* evm_buffer;
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} srslte_pusch_t;
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typedef struct SRSLTE_API {
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uint8_t* ptr;
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srslte_uci_value_t uci;
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} srslte_pusch_data_t;
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typedef struct SRSLTE_API {
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uint8_t* data;
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srslte_uci_value_t uci;
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bool crc;
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float avg_iterations_block;
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float evm;
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float epre_dbfs;
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} srslte_pusch_res_t;
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SRSLTE_API int srslte_pusch_init_ue(srslte_pusch_t* q, uint32_t max_prb);
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SRSLTE_API int srslte_pusch_init_enb(srslte_pusch_t* q, uint32_t max_prb);
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SRSLTE_API void srslte_pusch_free(srslte_pusch_t* q);
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/* These functions modify the state of the object and may take some time */
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SRSLTE_API int srslte_pusch_set_cell(srslte_pusch_t* q, srslte_cell_t cell);
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SRSLTE_API int srslte_pusch_set_rnti(srslte_pusch_t* q, uint16_t rnti);
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SRSLTE_API void srslte_pusch_free_rnti(srslte_pusch_t* q, uint16_t rnti);
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/**
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* Asserts PUSCH grant attributes are in range
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* @param grant Pointer to PUSCH grant
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* @return it returns SRSLTE_SUCCESS if the grant is correct, otherwise it returns a SRSLTE_ERROR code
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*/
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SRSLTE_API int srslte_pusch_assert_grant(const srslte_pusch_grant_t* grant);
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/* These functions do not modify the state and run in real-time */
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SRSLTE_API int srslte_pusch_encode(srslte_pusch_t* q,
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srslte_ul_sf_cfg_t* sf,
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srslte_pusch_cfg_t* cfg,
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srslte_pusch_data_t* data,
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cf_t* sf_symbols);
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SRSLTE_API int srslte_pusch_decode(srslte_pusch_t* q,
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srslte_ul_sf_cfg_t* sf,
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srslte_pusch_cfg_t* cfg,
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srslte_chest_ul_res_t* channel,
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cf_t* sf_symbols,
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srslte_pusch_res_t* data);
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SRSLTE_API uint32_t srslte_pusch_grant_tx_info(srslte_pusch_grant_t* grant,
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srslte_uci_cfg_t* uci_cfg,
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srslte_uci_value_t* uci_data,
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char* str,
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uint32_t str_len);
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SRSLTE_API uint32_t srslte_pusch_tx_info(srslte_pusch_cfg_t* cfg,
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srslte_uci_value_t* uci_data,
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char* str,
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uint32_t str_len);
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SRSLTE_API uint32_t srslte_pusch_rx_info(srslte_pusch_cfg_t* cfg,
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srslte_pusch_res_t* res,
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srslte_chest_ul_res_t* chest_res,
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char* str,
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uint32_t str_len);
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#endif // SRSLTE_PUSCH_H
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