/** * * \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. * */ /********************************************************************************************** * File: phy_common_sl.h * * Description: Common parameters and lookup functions for Sidelink PHY * * Reference: 3GPP TS 36.211 version 15.3.0 Release 15 *********************************************************************************************/ #ifndef SRSRAN_PHY_COMMON_SL_H #define SRSRAN_PHY_COMMON_SL_H /** * \brief Common parameters and lookup functions for Sidelink PHY */ #include "srsran/phy/common/phy_common.h" typedef enum SRSRAN_API { SRSRAN_SIDELINK_TM1 = 0, SRSRAN_SIDELINK_TM2, SRSRAN_SIDELINK_TM3, SRSRAN_SIDELINK_TM4 } srsran_sl_tm_t; typedef enum SRSRAN_API { SRSRAN_SIDELINK_PSBCH = 0, // Physical Sidelink Broadcast Channel SRSRAN_SIDELINK_PSCCH, // Physical Sidelink Control Channel SRSRAN_SIDELINK_PSSCH, // Physical Sidelink Shared Channel SRSRAN_SIDELINK_PSDCH // Physical Sidelink Discovery Channel } srsran_sl_channels_t; typedef struct SRSRAN_API { srsran_sl_tm_t tm; uint32_t N_sl_id; uint32_t nof_prb; srsran_cp_t cp; } srsran_cell_sl_t; #define SRSRAN_SL_MAX_PERIOD_LENGTH 320 // SL-PeriodComm-r12 3GPP TS 36.331 Section 6.3.8 // SL-CommResourcePool: 3GPP TS 36.331 version 15.6.0 Release 15 Section 6.3.8 typedef struct SRSRAN_API { uint32_t period_length; uint32_t prb_num; uint32_t prb_start; uint32_t prb_end; uint8_t pscch_sf_bitmap[SRSRAN_SL_MAX_PERIOD_LENGTH]; uint8_t pssch_sf_bitmap[SRSRAN_SL_MAX_PERIOD_LENGTH]; uint32_t size_sub_channel; // sizeSubchannel-r14 uint32_t num_sub_channel; // numSubchannel-r14 uint32_t start_prb_sub_channel; // startRB-Subchannel-r14 offset bool adjacency_pscch_pssch; // adjacencyPSCCH-PSSCH-r14 uint32_t sf_bitmap_tm34_len; uint8_t sf_bitmap_tm34[SRSRAN_SL_MAX_PERIOD_LENGTH]; // sl_Subframe_r14: 3GPP 36.331 Section 6.3.8 } srsran_sl_comm_resource_pool_t; typedef enum SRSRAN_API { SRSRAN_SIDELINK_DATA_SYMBOL = 0, SRSRAN_SIDELINK_SYNC_SYMBOL, SRSRAN_SIDELINK_DMRS_SYMBOL, SRSRAN_SIDELINK_GUARD_SYMBOL } srsran_sl_symbol_t; #define SRSRAN_SL_DUPLEX_MODE_FDD (1) #define SRSRAN_SL_DUPLEX_MODE_TDD (2) #define SRSRAN_SLSS_SIDE_PEAK_OFFSET (0.005f) #define SRSRAN_SLSS_SIDE_PEAK_THRESHOLD_HIGH (0.49f) // square(0.7), max 70% of main peak #define SRSRAN_SLSS_SIDE_PEAK_THRESHOLD_LOW (0.09f) // square(0.3), min 30% of main peak #define SRSRAN_PSBCH_NOF_PRB (6) #define SRSRAN_PSCCH_TM34_NOF_PRB (2) #define SRSRAN_MIB_SL_LEN (40) // TM1/2: 40 bits #define SRSRAN_MIB_SL_V2X_LEN (48) // TM3/4: 48 bits #define SRSRAN_MIB_SL_MAX_LEN (SRSRAN_MIB_SL_V2X_LEN) #define SRSRAN_SL_TM12_DEFAULT_NUM_DMRS_SYMBOLS (2) #define SRSRAN_SL_TM34_DEFAULT_NUM_DMRS_SYMBOLS (4) ///< In TM3/4, all channels have 4 DMRS by default #define SRSRAN_PSBCH_TM12_NUM_DATA_SYMBOLS (8) // PSBCH is in 8 OFDM symbols (but only 7 are tx'ed) #define SRSRAN_PSBCH_TM12_NUM_DATA_SYMBOLS_EXT \ (6) // PSBCH is in 7 OFDM symbols for extended cyclic prefix (but only 6 are tx'ed) #define SRSRAN_PSBCH_TM12_NUM_DMRS_SYMBOLS (2) ///< PSBCH has 2 DMRS symbols #define SRSRAN_PSBCH_TM12_NUM_SYNC_SYMBOLS (4) ///< Two symbols PSSS and two SSSS #define SRSRAN_PSBCH_TM34_NUM_DATA_SYMBOLS (7) ///< SL-BCH is in 7 OFDM symbols (but only 6 are tx'ed) #define SRSRAN_PSBCH_TM34_NUM_DMRS_SYMBOLS (3) ///< PSBCH has 3 DMRS symbols in TM3 and TM4 #define SRSRAN_PSBCH_TM34_NUM_SYNC_SYMBOLS (4) ///< Two symbols PSSS and two SSSS #define SRSRAN_SCI_CRC_LEN (16) #define SRSRAN_SCI_MAX_LEN (45) #define SRSRAN_SCI_TM34_LEN (32) #define SRSRAN_PSCCH_QM 2 #define SRSRAN_PSCCH_TM12_NOF_PRB (1) #define SRSRAN_PSCCH_TM34_NOF_PRB (2) #define SRSRAN_PSCCH_MAX_NOF_PRB (SRSRAN_PSCCH_TM34_NOF_PRB) #define SRSRAN_PSCCH_SCRAMBLING_SEED (510) ///< Scrambling seed for PSCCH is 510 #define SRSRAN_PSCCH_TM12_NUM_DATA_SYMBOLS (12) #define SRSRAN_PSCCH_TM12_NUM_DMRS_SYMBOLS (2) #define SRSRAN_PSCCH_TM12_NUM_DATA_SYMBOLS_EXT (10) #define SRSRAN_PSCCH_TM34_NUM_DATA_SYMBOLS (10) #define SRSRAN_PSCCH_TM34_NUM_DMRS_SYMBOLS (4) #define SRSRAN_PSCCH_TM12_NOF_CODED_BITS \ (SRSRAN_NRE * SRSRAN_PSCCH_TM12_NUM_DATA_SYMBOLS * SRSRAN_PSCCH_TM12_NOF_PRB * SRSRAN_PSCCH_QM) #define SRSRAN_PSCCH_TM34_NOF_CODED_BITS \ (SRSRAN_NRE * SRSRAN_PSCCH_TM34_NUM_DATA_SYMBOLS * SRSRAN_PSCCH_TM34_NOF_PRB * SRSRAN_PSCCH_QM) #define SRSRAN_PSCCH_MAX_CODED_BITS SRSRAN_MAX(SRSRAN_PSCCH_TM12_NOF_CODED_BITS, SRSRAN_PSCCH_TM34_NOF_CODED_BITS) #define SRSRAN_PSSCH_MAX_QM 6 #define SRSRAN_PSSCH_CRC_LEN 24 #define SRSRAN_MAX_CODEWORD_LEN 168000 // 12 subcarriers * 100 PRB * 14 symbols * 10 bits, assuming 1024QAM #define SRSRAN_SL_SCH_MAX_TB_LEN (48936) // 3GPP 36.306 v15.4.0 Table 4.1B-1 #define SRSRAN_PSSCH_MAX_CODED_BITS (3 * SRSRAN_TCOD_MAX_LEN_CB + SRSRAN_TCOD_TOTALTAIL) #define SRSRAN_PSSCH_TM12_NUM_DATA_SYMBOLS (12) // PSSCH is in 12 OFDM symbols (but only 11 are tx'ed) #define SRSRAN_PSSCH_TM12_NUM_DMRS_SYMBOLS (2) // PSSCH has 2 DMRS symbols in TM1 and TM2 #define SRSRAN_PSSCH_TM12_NUM_DATA_SYMBOLS_CP_EXT \ (10) // PSSCH is in 10 OFDM symbols for extended cyclic prefix (but only 9 are tx'ed) #define SRSRAN_PSSCH_TM12_NUM_DMRS_SYMBOLS_CP_EXT \ (2) // PSSCH has 2 DMRS symbols for extended cyclic prefix in TM1 and TM2 #define SRSRAN_PSSCH_TM34_NUM_DATA_SYMBOLS (10) // PSSCH is in 10 OFDM symbols (but only 9 are tx'ed) #define SRSRAN_PSSCH_TM34_NUM_DMRS_SYMBOLS (4) // PSSCH has 4 DMRS symbols in TM3 and TM4 SRSRAN_API int srsran_sl_group_hopping_f_gh(uint32_t f_gh[SRSRAN_NSLOTS_X_FRAME * 2], uint32_t N_x_id); #define SRSRAN_PSCCH_MAX_NUM_DATA_SYMBOLS (SRSRAN_PSCCH_TM12_NUM_DATA_SYMBOLS) SRSRAN_API bool srsran_slss_side_peak_pos_is_valid(uint32_t side_peak_pos, uint32_t main_peak_pos, uint32_t side_peak_delta_a, uint32_t side_peak_delta_b); SRSRAN_API bool srsran_slss_side_peak_value_is_valid(float side_peak_value, float threshold_low, float threshold_high); SRSRAN_API int srsran_sl_tm_to_cell_sl_tm_t(srsran_cell_sl_t* q, uint32_t tm); SRSRAN_API uint32_t srsran_sl_get_num_symbols(srsran_sl_tm_t tm, srsran_cp_t cp); SRSRAN_API bool srsran_psbch_is_symbol(srsran_sl_symbol_t type, srsran_sl_tm_t tm, uint32_t i, srsran_cp_t cp); SRSRAN_API bool srsran_pscch_is_symbol(srsran_sl_symbol_t type, srsran_sl_tm_t tm, uint32_t i, srsran_cp_t cp); SRSRAN_API bool srsran_pssch_is_symbol(srsran_sl_symbol_t type, srsran_sl_tm_t tm, uint32_t i, srsran_cp_t cp); SRSRAN_API uint32_t srsran_sci_format0_sizeof(uint32_t nof_prb); SRSRAN_API int srsran_sl_comm_resource_pool_get_default_config(srsran_sl_comm_resource_pool_t* q, srsran_cell_sl_t cell); #endif // SRSRAN_PHY_COMMON_SL_H