mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
/**
|
|
*
|
|
* \section COPYRIGHT
|
|
*
|
|
* Copyright 2013-2021 Software Radio Systems Limited
|
|
*
|
|
* By using this file, you agree to the terms and conditions set
|
|
* forth in the LICENSE file which can be found at the top level of
|
|
* the distribution.
|
|
*
|
|
*/
|
|
|
|
#ifndef SRSRAN_SCI_H
|
|
#define SRSRAN_SCI_H
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
#include "srsran/config.h"
|
|
#include "srsran/phy/common/phy_common_sl.h"
|
|
|
|
#define SRSRAN_SCI_MSG_MAX_LEN 80
|
|
|
|
#define SRSRAN_SCI_CRC_LEN (16)
|
|
#define SRSRAN_SCI_MAX_LEN (45)
|
|
#define SRSRAN_SCI_TM34_LEN (32)
|
|
|
|
typedef enum { SRSRAN_SCI_FORMAT0 = 0, SRSRAN_SCI_FORMAT1 } srsran_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 SRSRAN_API {
|
|
srsran_sl_tm_t tm;
|
|
uint32_t sci_len;
|
|
uint32_t nof_prb;
|
|
|
|
srsran_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;
|
|
|
|
// Transmission format (1 bit)
|
|
// 1 means transmission format including rate-matching and TBS scaling
|
|
// 0 means transmission format including puncturing and no TBS-scaling
|
|
uint32_t transmission_format;
|
|
|
|
} srsran_sci_t;
|
|
|
|
SRSRAN_API int srsran_sci_init(srsran_sci_t* q,
|
|
const srsran_cell_sl_t* cell,
|
|
const srsran_sl_comm_resource_pool_t* sl_comm_resource_pool);
|
|
SRSRAN_API int srsran_sci_format0_pack(srsran_sci_t* q, uint8_t* output);
|
|
SRSRAN_API int srsran_sci_format1_pack(srsran_sci_t* q, uint8_t* output);
|
|
SRSRAN_API int srsran_sci_format0_unpack(srsran_sci_t* q, uint8_t* input);
|
|
SRSRAN_API int srsran_sci_format1_unpack(srsran_sci_t* q, uint8_t* input);
|
|
SRSRAN_API void srsran_sci_info(const srsran_sci_t* sci, char* str, uint32_t len);
|
|
SRSRAN_API void srsran_sci_free(srsran_sci_t* q);
|
|
|
|
#endif // SRSRAN_SCI_H
|