mirror of https://github.com/PentHertz/srsLTE.git
157 lines
6.0 KiB
C
157 lines
6.0 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsLTE library.
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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: uci.h
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*
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* Description: Uplink control information. Only 1-bit ACK for UCI on PUSCCH is supported
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*
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* Reference: 3GPP TS 36.212 version 10.0.0 Release 10 Sec. 5.2.3, 5.2.4
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*****************************************************************************/
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#ifndef SRSLTE_UCI_H
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#define SRSLTE_UCI_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/pusch_cfg.h"
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#include "srslte/phy/fec/crc.h"
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#include "srslte/phy/fec/viterbi.h"
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#include "srslte/phy/phch/cqi.h"
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#define SRSLTE_UCI_MAX_CQI_LEN_PUSCH 512
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#define SRSLTE_UCI_MAX_CQI_LEN_PUCCH 13
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#define SRSLTE_UCI_CQI_CODED_PUCCH_B 20
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typedef struct SRSLTE_API {
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srslte_crc_t crc;
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srslte_viterbi_t viterbi;
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uint8_t tmp_cqi[SRSLTE_UCI_MAX_CQI_LEN_PUSCH];
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uint8_t encoded_cqi[3*SRSLTE_UCI_MAX_CQI_LEN_PUSCH];
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int16_t encoded_cqi_s[3*SRSLTE_UCI_MAX_CQI_LEN_PUSCH];
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uint8_t *cqi_table[11];
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int16_t *cqi_table_s[11];
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} srslte_uci_cqi_pusch_t;
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typedef struct SRSLTE_API {
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uint8_t **cqi_table;
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int16_t **cqi_table_s;
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} srslte_uci_cqi_pucch_t;
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typedef struct SRSLTE_API {
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uint8_t uci_cqi[SRSLTE_CQI_MAX_BITS];
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uint32_t uci_cqi_len;
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uint8_t uci_ri; // Only 1-bit supported for RI
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uint32_t uci_ri_len;
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uint8_t uci_ack; // 1st codeword bit for HARQ-ACK
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uint8_t uci_ack_2; // 2st codeword bit for HARQ-ACK
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uint32_t uci_ack_len;
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bool ri_periodic_report;
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bool scheduling_request;
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bool channel_selection;
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bool cqi_ack;
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} srslte_uci_data_t;
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typedef enum {
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UCI_BIT_1 = 0, UCI_BIT_0, UCI_BIT_REPETITION, UCI_BIT_PLACEHOLDER
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} srslte_uci_bit_type_t;
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typedef struct {
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uint32_t position;
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srslte_uci_bit_type_t type;
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} srslte_uci_bit_t;
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SRSLTE_API void srslte_uci_cqi_pucch_init(srslte_uci_cqi_pucch_t *q);
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SRSLTE_API void srslte_uci_cqi_pucch_free(srslte_uci_cqi_pucch_t *q);
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SRSLTE_API int srslte_uci_encode_cqi_pucch(uint8_t *cqi_data,
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uint32_t cqi_len,
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uint8_t b_bits[SRSLTE_UCI_CQI_CODED_PUCCH_B]);
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SRSLTE_API int srslte_uci_encode_cqi_pucch_from_table(srslte_uci_cqi_pucch_t *q,
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uint8_t *cqi_data,
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uint32_t cqi_len,
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uint8_t b_bits[SRSLTE_UCI_CQI_CODED_PUCCH_B]);
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SRSLTE_API int16_t srslte_uci_decode_cqi_pucch(srslte_uci_cqi_pucch_t *q,
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int16_t b_bits[32], // aligned for simd
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uint8_t *cqi_data,
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uint32_t cqi_len);
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SRSLTE_API int srslte_uci_cqi_init(srslte_uci_cqi_pusch_t *q);
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SRSLTE_API void srslte_uci_cqi_free(srslte_uci_cqi_pusch_t *q);
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SRSLTE_API int srslte_uci_encode_cqi_pusch(srslte_uci_cqi_pusch_t *q,
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srslte_pusch_cfg_t *cfg,
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uint8_t *cqi_data,
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uint32_t cqi_len,
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float beta,
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uint32_t Q_prime_ri,
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uint8_t *q_bits);
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SRSLTE_API int srslte_uci_decode_cqi_pusch(srslte_uci_cqi_pusch_t *q,
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srslte_pusch_cfg_t *cfg,
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int16_t *q_bits,
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float beta,
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uint32_t Q_prime_ri,
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uint32_t cqi_len,
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uint8_t *cqi_data,
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bool *cqi_ack);
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SRSLTE_API int srslte_uci_encode_ack(srslte_pusch_cfg_t *cfg,
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uint8_t acks[2],
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uint32_t nof_acks,
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uint32_t O_cqi,
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float beta,
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uint32_t H_prime_total,
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srslte_uci_bit_t *ri_bits);
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SRSLTE_API int srslte_uci_encode_ack_ri(srslte_pusch_cfg_t *cfg,
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uint8_t *data,
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uint32_t data_len,
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uint32_t O_cqi,
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float beta,
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uint32_t H_prime_total,
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srslte_uci_bit_t *ri_bits,
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bool is_ri);
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SRSLTE_API int srslte_uci_decode_ack_ri(srslte_pusch_cfg_t *cfg,
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int16_t *q_bits,
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uint8_t *c_seq,
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float beta,
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uint32_t H_prime_total,
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uint32_t O_cqi,
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srslte_uci_bit_t *ack_ri_bits,
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uint8_t data[2],
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uint32_t nof_bits,
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bool is_ri);
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#endif // SRSLTE_UCI_H
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