|
|
|
|
/*
|
|
|
|
|
* Copyright 2013-2019 Software Radio Systems Limited
|
|
|
|
|
*
|
|
|
|
|
* This file is part of srsLTE.
|
|
|
|
|
*
|
|
|
|
|
* srsLTE is free software: you can redistribute it and/or modify
|
|
|
|
|
* it under the terms of the GNU Affero General Public License as
|
|
|
|
|
* published by the Free Software Foundation, either version 3 of
|
|
|
|
|
* the License, or (at your option) any later version.
|
|
|
|
|
*
|
|
|
|
|
* srsLTE is distributed in the hope that it will be useful,
|
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
* GNU Affero General Public License for more details.
|
|
|
|
|
*
|
|
|
|
|
* A copy of the GNU Affero General Public License can be found in
|
|
|
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
|
|
|
* and at http://www.gnu.org/licenses/.
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef SRSLTE_SCI_H
|
|
|
|
|
#define SRSLTE_SCI_H
|
|
|
|
|
|
|
|
|
|
#include <stdbool.h>
|
|
|
|
|
#include <stdint.h>
|
|
|
|
|
|
|
|
|
|
#include "srslte/config.h"
|
|
|
|
|
#include "srslte/phy/common/phy_common_sl.h"
|
|
|
|
|
|
|
|
|
|
#define SRSLTE_SCI_MSG_MAX_LEN 80
|
|
|
|
|
|
|
|
|
|
#define SRSLTE_SCI_CRC_LEN (16)
|
|
|
|
|
#define SRSLTE_SCI_MAX_LEN (45)
|
|
|
|
|
#define SRSLTE_SCI_TM34_LEN (32)
|
|
|
|
|
|
|
|
|
|
typedef enum { SRSLTE_SCI_FORMAT0 = 0, SRSLTE_SCI_FORMAT1 } srslte_sci_format_t;
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Sidelink Control Information - Sidelink (SCI0 and SCI1).
|
|
|
|
|
*
|
|
|
|
|
* \brief SCI0/1 packing/unpacking functions to convert between bit streams
|
|
|
|
|
*
|
|
|
|
|
* Reference: 3GPP TS 36.212 version 15.6.0 Release 15 Section 5.4.3
|
|
|
|
|
*/
|
|
|
|
|
typedef struct SRSLTE_API {
|
|
|
|
|
|
|
|
|
|
srslte_sl_tm_t tm;
|
|
|
|
|
uint32_t sci_len;
|
|
|
|
|
uint32_t nof_prb;
|
|
|
|
|
|
|
|
|
|
srslte_sci_format_t format;
|
|
|
|
|
|
|
|
|
|
// sizeSubChannel
|
|
|
|
|
uint32_t size_sub_channel;
|
|
|
|
|
|
|
|
|
|
// numSubChannel
|
|
|
|
|
uint32_t num_sub_channel;
|
|
|
|
|
|
|
|
|
|
///< SCI Format 0: Resource block assignment and hopping resource allocation
|
|
|
|
|
///< SCI Format 1: Frequency resource location (0,3,6,7,8 bits)
|
|
|
|
|
uint32_t riv;
|
|
|
|
|
|
|
|
|
|
// Modulation and coding scheme (bits);
|
|
|
|
|
uint32_t mcs_idx;
|
|
|
|
|
|
|
|
|
|
///< SCI Format 0
|
|
|
|
|
// Frequency hopping flag (1 bit)
|
|
|
|
|
bool freq_hopping_flag;
|
|
|
|
|
|
|
|
|
|
uint32_t hopping_bits;
|
|
|
|
|
|
|
|
|
|
// TRP - Time resource pattern (7bits)
|
|
|
|
|
uint32_t trp_idx;
|
|
|
|
|
|
|
|
|
|
// Timing advance indication (11 bits)
|
|
|
|
|
uint32_t timing_advance;
|
|
|
|
|
|
|
|
|
|
// Group ID (8 bits)
|
|
|
|
|
uint32_t N_sa_id;
|
|
|
|
|
|
|
|
|
|
///< SCI Format 1
|
|
|
|
|
// Priority (3bits)
|
|
|
|
|
uint32_t priority;
|
|
|
|
|
|
|
|
|
|
// Resource reservation (4 bits)
|
|
|
|
|
uint32_t resource_reserv;
|
|
|
|
|
|
|
|
|
|
// Time gap (4 bits)
|
|
|
|
|
uint32_t time_gap;
|
|
|
|
|
|
|
|
|
|
// Retransmission index (1 bit)
|
|
|
|
|
bool retransmission;
|
|
|
|
|
|
|
|
|
|
} srslte_sci_t;
|
|
|
|
|
|
|
|
|
|
SRSLTE_API int srslte_sci_init(srslte_sci_t* q,
|
|
|
|
|
uint32_t nof_prb,
|
|
|
|
|
srslte_sl_tm_t tm,
|
|
|
|
|
uint32_t size_sub_channel,
|
|
|
|
|
uint32_t num_sub_channel);
|
|
|
|
|
SRSLTE_API int srslte_sci_format0_pack(srslte_sci_t* q, uint8_t* output);
|
|
|
|
|
SRSLTE_API int srslte_sci_format1_pack(srslte_sci_t* q, uint8_t* output);
|
|
|
|
|
SRSLTE_API int srslte_sci_format0_unpack(srslte_sci_t* q, uint8_t* input);
|
|
|
|
|
SRSLTE_API int srslte_sci_format1_unpack(srslte_sci_t* q, uint8_t* input);
|
|
|
|
|
SRSLTE_API void srslte_sci_info(char* str, srslte_sci_t* q);
|
|
|
|
|
SRSLTE_API void srslte_sci_free(srslte_sci_t* q);
|
|
|
|
|
|
|
|
|
|
#endif // SRSLTE_SCI_H
|
