mirror of https://github.com/PentHertz/srsLTE.git
206 lines
6.1 KiB
C
206 lines
6.1 KiB
C
/**
|
|
*
|
|
* \section COPYRIGHT
|
|
*
|
|
* Copyright 2013-2020 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: pdsch_cfg_nr.h
|
|
*
|
|
* Description: Physical downlink shared channel configuration
|
|
*
|
|
* Reference:
|
|
*****************************************************************************/
|
|
|
|
#ifndef SRSLTE_PHCH_CFG_NR_H
|
|
#define SRSLTE_PHCH_CFG_NR_H
|
|
|
|
#include "srslte/phy/common/phy_common_nr.h"
|
|
#include "srslte/phy/phch/sch_cfg_nr.h"
|
|
|
|
/**
|
|
* @brief PDSCH DMRS type
|
|
*/
|
|
typedef enum {
|
|
srslte_dmrs_sch_type_1 = 0, // 1 pilot every 2 sub-carriers (default)
|
|
srslte_dmrs_sch_type_2 // 2 consecutive pilots every 6 sub-carriers
|
|
} srslte_dmrs_sch_type_t;
|
|
|
|
/**
|
|
* @brief PDSCH DMRS length in symbols
|
|
*/
|
|
typedef enum {
|
|
srslte_dmrs_sch_len_1 = 0, // single, 1 symbol long (default)
|
|
srslte_dmrs_sch_len_2 // double, 2 symbol long
|
|
} srslte_dmrs_sch_len_t;
|
|
|
|
/**
|
|
* @brief Determines whether the first pilot goes into symbol index 2 or 3
|
|
*/
|
|
typedef enum {
|
|
srslte_dmrs_sch_typeA_pos_2 = 0, // Start in slot symbol index 2 (default)
|
|
srslte_dmrs_sch_typeA_pos_3 // Start in slot symbol index 3
|
|
} srslte_dmrs_sch_typeA_pos_t;
|
|
|
|
/**
|
|
* @brief Determines additional symbols if possible to be added
|
|
*/
|
|
typedef enum {
|
|
srslte_dmrs_sch_add_pos_2 = 0,
|
|
srslte_dmrs_sch_add_pos_0,
|
|
srslte_dmrs_sch_add_pos_1,
|
|
srslte_dmrs_sch_add_pos_3
|
|
} srslte_dmrs_sch_add_pos_t;
|
|
|
|
/**
|
|
* @brief Provides PDSCH DMRS configuration from higher layers
|
|
* @remark Parameters described in TS 38.331 V15.10.0
|
|
*/
|
|
typedef struct {
|
|
/// Parameters provided by IE DMRS-DownlinkConfig
|
|
srslte_dmrs_sch_type_t type;
|
|
srslte_dmrs_sch_add_pos_t additional_pos;
|
|
srslte_dmrs_sch_len_t length;
|
|
bool scrambling_id0_present;
|
|
uint32_t scrambling_id0;
|
|
bool scrambling_id1_present;
|
|
uint32_t scrambling_id1;
|
|
|
|
/// Parameters provided by ServingCellConfigCommon
|
|
srslte_dmrs_sch_typeA_pos_t typeA_pos;
|
|
bool lte_CRS_to_match_around;
|
|
|
|
/// Parameters provided by FeatureSetDownlink-v1540
|
|
bool additional_DMRS_DL_Alt;
|
|
|
|
} srslte_dmrs_sch_cfg_t;
|
|
|
|
/**
|
|
* @brief Common flatten PDSCH and PUSCH time domain allocation parameters
|
|
* @remark Described in TS 38.331 V15.10.0 Section PDSCH-TimeDomainResourceAllocationList
|
|
* @remark Described in TS 38.331 V15.10.0 Section PUSCH-TimeDomainResourceAllocationList
|
|
*/
|
|
typedef struct SRSLTE_API {
|
|
/// For PDSCH Slot offset between DCI and its scheduled PDSCH
|
|
/// For PUSCH parameter K2
|
|
uint32_t k;
|
|
|
|
/// SCH mapping type
|
|
srslte_sch_mapping_type_t mapping_type;
|
|
|
|
/// An index giving valid combinations of start symbol and length (jointly encoded) as start and length indicator
|
|
/// (SLIV). The network configures the field so that the allocation does not cross the slot boundary
|
|
uint32_t sliv;
|
|
|
|
} srslte_sch_time_ra_t;
|
|
|
|
/**
|
|
* @brief PDSCH grant information provided by the Downlink Control Information (DCI)
|
|
*/
|
|
typedef struct SRSLTE_API {
|
|
/// UE identifier
|
|
uint16_t rnti;
|
|
srslte_rnti_type_t rnti_type;
|
|
|
|
/// Time domain resources
|
|
uint32_t k0; // PDSCH only
|
|
uint32_t k2; // PUSCH only
|
|
uint32_t S;
|
|
uint32_t L;
|
|
srslte_sch_mapping_type_t mapping;
|
|
|
|
/// Frequency domain resources
|
|
bool prb_idx[SRSLTE_MAX_PRB_NR];
|
|
uint32_t nof_prb;
|
|
|
|
/// Number of DMRS groups without data
|
|
/// Described in TS 38.214 Section 5.1.6.2
|
|
uint32_t nof_dmrs_cdm_groups_without_data;
|
|
|
|
/// Spatial resources
|
|
uint32_t nof_layers;
|
|
|
|
/// DMRS Scrambling sequence initialization (false: 0 or true: 1)
|
|
bool n_scid;
|
|
|
|
/// DCI information
|
|
srslte_dci_format_nr_t dci_format;
|
|
srslte_search_space_type_t dci_search_space;
|
|
|
|
/// Transport block
|
|
uint32_t tb_scaling_field;
|
|
/// ....
|
|
|
|
srslte_sch_tb_t tb[SRSLTE_MAX_TB];
|
|
} srslte_sch_grant_nr_t;
|
|
|
|
/**
|
|
* @brief flatten SCH configuration parameters provided by higher layers
|
|
* @remark Described in TS 38.331 V15.10.0 Section PDSCH-Config
|
|
* @remark Described in TS 38.331 V15.10.0 Section PUSCH-Config
|
|
*/
|
|
typedef struct SRSLTE_API {
|
|
// Serving cell parameters
|
|
uint32_t scs_cfg; // Subcarrier spacing configuration
|
|
srslte_dmrs_sch_typeA_pos_t typeA_pos;
|
|
|
|
bool scrambling_id_present;
|
|
uint32_t scambling_id; // Identifier used to initialize data scrambling (0-1023)
|
|
|
|
struct {
|
|
srslte_dmrs_sch_type_t type;
|
|
srslte_dmrs_sch_add_pos_t additional_pos;
|
|
srslte_dmrs_sch_len_t length;
|
|
bool scrambling_id0_present;
|
|
uint32_t scrambling_id0;
|
|
bool scrambling_id1_present;
|
|
uint32_t scrambling_id1;
|
|
bool present;
|
|
} dmrs_typeA;
|
|
|
|
struct {
|
|
srslte_dmrs_sch_type_t type;
|
|
srslte_dmrs_sch_add_pos_t additional_pos;
|
|
srslte_dmrs_sch_len_t length;
|
|
bool scrambling_id0_present;
|
|
uint32_t scrambling_id0;
|
|
bool scrambling_id1_present;
|
|
uint32_t scrambling_id1;
|
|
bool present;
|
|
} dmrs_typeB;
|
|
|
|
srslte_sch_time_ra_t common_time_ra[SRSLTE_MAX_NOF_DL_ALLOCATION];
|
|
uint32_t nof_common_time_ra;
|
|
|
|
srslte_sch_time_ra_t dedicated_time_ra[SRSLTE_MAX_NOF_DL_ALLOCATION];
|
|
uint32_t nof_dedicated_time_ra;
|
|
|
|
bool rbg_size_cfg_1; ///< RBG size configuration (1 or 2)
|
|
|
|
srslte_sch_cfg_t sch_cfg; ///< Common shared channel parameters
|
|
} srslte_sch_hl_cfg_nr_t;
|
|
|
|
/**
|
|
* @brief Common NR-SCH (PDSCH and PUSCH for NR) configuration
|
|
*/
|
|
typedef struct SRSLTE_API {
|
|
bool scrambling_id_present;
|
|
uint32_t scambling_id; // Identifier used to initialize data scrambling (0-1023)
|
|
|
|
srslte_dmrs_sch_cfg_t dmrs;
|
|
srslte_sch_grant_nr_t grant;
|
|
|
|
srslte_sch_cfg_t sch_cfg; ///< Common shared channel parameters
|
|
|
|
/// Uplink params
|
|
bool enable_transform_precoder;
|
|
} srslte_sch_cfg_nr_t;
|
|
|
|
#endif // SRSLTE_PHCH_CFG_NR_H
|