/* * Copyright 2013-2020 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/. * */ /********************************************************************************************** * 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 SRSLTE_PHY_COMMON_SL_H #define SRSLTE_PHY_COMMON_SL_H /** * \brief Common parameters and lookup functions for Sidelink PHY */ #include "srslte/phy/common/phy_common.h" typedef enum SRSLTE_API { SRSLTE_SIDELINK_TM1 = 0, SRSLTE_SIDELINK_TM2, SRSLTE_SIDELINK_TM3, SRSLTE_SIDELINK_TM4 } srslte_sl_tm_t; typedef enum SRSLTE_API { SRSLTE_SIDELINK_PSBCH = 0, // Physical Sidelink Broadcast Channel SRSLTE_SIDELINK_PSCCH, // Physical Sidelink Control Channel SRSLTE_SIDELINK_PSSCH, // Physical Sidelink Shared Channel SRSLTE_SIDELINK_PSDCH // Physical Sidelink Discovery Channel } srslte_sl_channels_t; typedef struct SRSLTE_API { srslte_sl_tm_t tm; uint32_t N_sl_id; uint32_t nof_prb; srslte_cp_t cp; } srslte_cell_sl_t; // SL-CommResourcePool: 3GPP TS 36.331 version 15.6.0 Release 15 Section 6.3.8 typedef struct SRSLTE_API { uint32_t period_length; uint32_t prb_num; uint32_t prb_start; uint32_t prb_end; 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 } srslte_sl_comm_resource_pool_t; typedef enum SRSLTE_API { SRSLTE_SIDELINK_DATA_SYMBOL = 0, SRSLTE_SIDELINK_SYNC_SYMBOL, SRSLTE_SIDELINK_DMRS_SYMBOL, SRSLTE_SIDELINK_GUARD_SYMBOL } srslte_sl_symbol_t; #define SRSLTE_SL_DUPLEX_MODE_FDD (1) #define SRSLTE_SL_DUPLEX_MODE_TDD (2) #define SRSLTE_PSBCH_NOF_PRB (6) #define SRSLTE_PSCCH_TM34_NOF_PRB (2) #define SRSLTE_MIB_SL_LEN (40) // TM1/2: 40 bits #define SRSLTE_MIB_SL_V2X_LEN (48) // TM3/4: 48 bits #define SRSLTE_MIB_SL_MAX_LEN (SRSLTE_MIB_SL_V2X_LEN) #define SRSLTE_SL_TM12_DEFAULT_NUM_DMRS_SYMBOLS (2) #define SRSLTE_SL_TM34_DEFAULT_NUM_DMRS_SYMBOLS (4) ///< In TM3/4, all channels have 4 DMRS by default #define SRSLTE_PSBCH_TM12_NUM_DATA_SYMBOLS (8) ///< SL-BCH is in 8 OFDM symbols (but only 7 are tx'ed) #define SRSLTE_PSBCH_TM12_NUM_DMRS_SYMBOLS (2) ///< PSBCH has 2 DMRS symbols #define SRSLTE_PSBCH_TM12_NUM_SYNC_SYMBOLS (4) ///< Two symbols PSSS and two SSSS #define SRSLTE_PSBCH_TM34_NUM_DATA_SYMBOLS (7) ///< SL-BCH is in 7 OFDM symbols (but only 6 are tx'ed) #define SRSLTE_PSBCH_TM34_NUM_DMRS_SYMBOLS (3) ///< PSBCH has 3 DMRS symbols in TM3 and TM4 #define SRSLTE_PSBCH_TM34_NUM_SYNC_SYMBOLS (4) ///< Two symbols PSSS and two SSSS #define SRSLTE_SCI_CRC_LEN (16) #define SRSLTE_SCI_MAX_LEN (45) #define SRSLTE_SCI_TM34_LEN (32) #define SRSLTE_PSCCH_QM 2 #define SRSLTE_PSCCH_TM12_NOF_PRB (1) #define SRSLTE_PSCCH_TM34_NOF_PRB (2) #define SRSLTE_PSCCH_MAX_NOF_PRB (SRSLTE_PSCCH_TM34_NOF_PRB) #define SRSLTE_PSCCH_SCRAMBLING_SEED (510) ///< Scrambling seed for PSCCH is 510 #define SRSLTE_PSCCH_TM12_NUM_DATA_SYMBOLS (12) #define SRSLTE_PSCCH_TM12_NUM_DMRS_SYMBOLS (2) #define SRSLTE_PSCCH_TM12_NUM_DATA_SYMBOLS_EXT (10) #define SRSLTE_PSCCH_TM34_NUM_DATA_SYMBOLS (10) #define SRSLTE_PSCCH_TM34_NUM_DMRS_SYMBOLS (4) #define SRSLTE_PSCCH_TM12_NOF_CODED_BITS \ (SRSLTE_NRE * SRSLTE_PSCCH_TM12_NUM_DATA_SYMBOLS * SRSLTE_PSCCH_TM12_NOF_PRB * SRSLTE_PSCCH_QM) #define SRSLTE_PSCCH_TM34_NOF_CODED_BITS \ (SRSLTE_NRE * SRSLTE_PSCCH_TM34_NUM_DATA_SYMBOLS * SRSLTE_PSCCH_TM34_NOF_PRB * SRSLTE_PSCCH_QM) #define SRSLTE_PSCCH_MAX_CODED_BITS SRSLTE_MAX(SRSLTE_PSCCH_TM12_NOF_CODED_BITS, SRSLTE_PSCCH_TM34_NOF_CODED_BITS) #define SRSLTE_PSSCH_CRC_LEN 24 #define SRSLTE_MAX_CODEWORD_LEN 168000 // 12 subcarriers * 100 PRB * 14 symbols * 10 bits, assuming 1024QAM #define SRSLTE_SL_SCH_MAX_TB_LEN 1000000 // Must be checked in 3GPP #define SRSLTE_PSSCH_TM12_NUM_DATA_SYMBOLS (12) // PSSCH is in 12 OFDM symbols (but only 11 are tx'ed) #define SRSLTE_PSSCH_TM12_NUM_DMRS_SYMBOLS (2) // PSSCH has 2 DMRS symbols in TM1 and TM2 #define SRSLTE_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 SRSLTE_PSSCH_TM12_NUM_DMRS_SYMBOLS_CP_EXT \ (2) // PSSCH has 2 DMRS symbols for extended cyclic prefix in TM1 and TM2 #define SRSLTE_PSSCH_TM34_NUM_DATA_SYMBOLS (10) // PSSCH is in 10 OFDM symbols (but only 9 are tx'ed) #define SRSLTE_PSSCH_TM34_NUM_DMRS_SYMBOLS (4) // PSSCH has 4 DMRS symbols in TM3 and TM4 SRSLTE_API int srslte_sl_group_hopping_f_gh(uint32_t f_gh[SRSLTE_NSLOTS_X_FRAME * 2], uint32_t N_x_id); #define SRSLTE_PSCCH_MAX_NUM_DATA_SYMBOLS (SRSLTE_PSCCH_TM12_NUM_DATA_SYMBOLS) SRSLTE_API int srslte_sl_get_num_symbols(srslte_sl_tm_t tm, srslte_cp_t cp); SRSLTE_API bool srslte_psbch_is_symbol(srslte_sl_symbol_t type, srslte_sl_tm_t tm, uint32_t i, srslte_cp_t cp); SRSLTE_API bool srslte_pscch_is_symbol(srslte_sl_symbol_t type, srslte_sl_tm_t tm, uint32_t i, srslte_cp_t cp); SRSLTE_API bool srslte_pssch_is_symbol(srslte_sl_symbol_t type, srslte_sl_tm_t tm, uint32_t i, srslte_cp_t cp); SRSLTE_API uint32_t srslte_sci_format0_sizeof(uint32_t nof_prb); SRSLTE_API int srslte_sl_comm_resource_pool_get_default_config(srslte_sl_comm_resource_pool_t* q, srslte_cell_sl_t cell); #endif // SRSLTE_PHY_COMMON_SL_H