Sidelink MAC-PHY interface definition
- Initial Draft of exchanges between MAC and Phy. - For PSBCH, PSCCH and PSSCH - based on 5G NR UE interface between MAC and PHY
This commit is contained in:
Raghavendra Dinavahi
committed by
Robert Schmidt
Robert Schmidt
parent
578fbfb9f6
commit
e459455115
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#ifndef _SIDELINK_NR_UE_INTERFACE_H_
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#define _SIDELINK_NR_UE_INTERFACE_H_
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#include "fapi_nr_ue_interface.h"
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#define SL_NR_RX_CONFIG_LIST_NUM 1
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#define SL_NR_TX_CONFIG_LIST_NUM 1
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#define SL_NR_RX_IND_MAX_PDU 1
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#define SL_NR_MAX_PSCCH_SCI_LENGTH_IN_BYTES 8
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#define SL_NR_MAX_PSSCH_SCI_LENGTH_IN_BYTES 8
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#define SL_NR_MAX_SCI_LENGTH_IN_BYTES 8
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typedef enum sl_sci_format_type_enum {
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SL_SCI_INVALID_FORMAT,
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SL_SCI_FORMAT_1A_ON_PSCCH,
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SL_SCI_FORMAT_2_ON_PSSCH,
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} sl_sci_format_type_enum_t;
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//Type of Contents of SL-RX indication from PHY to MAC
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typedef enum sl_rx_pdu_type_enum {
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SL_NR_RX_PDU_TYPE_NONE,
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SL_NR_RX_PDU_TYPE_SSB,
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SL_NR_RX_PDU_TYPE_SLSCH
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} sl_rx_pdu_type_enum_t;
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//Type of SL-RX CONFIG requests from MAC to PHY
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typedef enum sl_nr_rx_config_type_enum {
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SL_NR_CONFIG_TYPE_RX_PSBCH = 1,
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SL_NR_CONFIG_TYPE_RX_PSCCH,
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SL_NR_CONFIG_TYPE_RX_PSSCH_SCI,
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SL_NR_CONFIG_TYPE_RX_PSSCH_SLSCH,
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SL_NR_CONFIG_TYPE_RX_MAXIMUM
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} sl_nr_rx_config_type_enum_t;
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//Type of SL-TX CONFIG requests from MAC to PHY
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typedef enum sl_nr_tx_config_type_enum {
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SL_NR_CONFIG_TYPE_TX_PSBCH = SL_NR_CONFIG_TYPE_RX_MAXIMUM + 1,
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SL_NR_CONFIG_TYPE_TX_PSCCH_PSSCH,
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SL_NR_CONFIG_TYPE_TX_PSFCH,
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SL_NR_CONFIG_TYPE_TX_MAXIMUM
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} sl_nr_tx_config_type_enum_t;
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//PHY Indicates MAC about the SCI-indication
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//During blind decoding, SCI-1A can be decoded in every subchannel.
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typedef struct {
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sl_sci_format_type_enum_t sci_format_type; // SCI FORMAT 1A or SCI FORMAT 2
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// lowest subchannel index in the resource pool where the SCI-1A was detected
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// Not used for SCI-2
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uint16_t subch_index;
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//RSRP sent in case of sense pscch
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int16_t pscch_rsrp;
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//Length of SCI decoded
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uint16_t sci_payloadlen;
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//Derived from PSCCH CRC Refer 38.211 section 8.3.1.1
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//Will be passed on if PSSCH decoding needs to be done.
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//Filled only if PSCCH decoded
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uint16_t Nid;
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// Payload of the received SCIs
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uint8_t sci_payloadBits[SL_NR_MAX_SCI_LENGTH_IN_BYTES];
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} sl_nr_sci_indication_pdu_t;
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// PHY indicates MAC about the received SCIs using this API
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typedef struct {
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uint16_t sfn;
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uint8_t slot;
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uint16_t number_of_SCIs;
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//If response to sensing - then this will be set to TRUE
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uint8_t sensing_result;
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//in case pssch sensing is requested.
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int16_t pssch_rsrp;
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sl_nr_sci_indication_pdu_t sci_pdu;
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} sl_nr_sci_indication_t;
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// IF UE Rx PSBCH, PHY indicates MAC with received MIB and PSBCH RSRP
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typedef struct sl_nr_ssb_pdu {
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uint8_t psbch_payload[4];
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int16_t rsrp_dbm;
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uint16_t rx_slss_id;
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bool decode_status;
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} sl_nr_ssb_pdu_t;
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//Use the same structure of pdsch pdu for slsch pdu
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typedef fapi_nr_pdsch_pdu_t sl_nr_slsch_pdu_t;
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typedef struct {
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sl_rx_pdu_type_enum_t pdu_type;
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union {
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sl_nr_ssb_pdu_t ssb_pdu;
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sl_nr_slsch_pdu_t rx_slsch_pdu;
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};
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} sl_nr_rx_indication_body_t;
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typedef struct {
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uint16_t sfn;
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uint16_t slot;
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uint16_t number_pdus;
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sl_nr_rx_indication_body_t rx_indication_body[SL_NR_RX_IND_MAX_PDU];
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} sl_nr_rx_indication_t;
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typedef struct sl_nr_rx_config_pscch_pdu {
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// Starting RE of the lowest subchannel in a resource where PSCCH
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// freq domain allocation starts
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uint16_t pscch_startrb;
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// Number of symbols used for PSCCH
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uint16_t pscch_numsym;
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// Number of RBS used for PSCCH
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uint16_t pscch_numrbs;
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// Scrambling Id used for Generation of PSCCH DMRS Symbols
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uint32_t pscch_dmrs_scrambling_id;
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// num subchannels in a resource pool
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uint16_t num_subch;
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// Size of subchannels in RBs
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uint16_t subchannel_size;
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// PSCCH PSSCH RX: this is set to 1 - Blind decoding for SCI1A done on every subchannel
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// PSCCH SENSING: this is equal to number of subchannels forming a resource.
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uint16_t l_subch;
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//number of symbols for Sidelink transmission on PSSCH/PSCCH
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//(Total Sidelink symbols available - number of psfch symbols configured - 2)
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//Guard symbol + AGC symbol are also excluded
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//Indicates the number of symbols for PSCCH+PSSCH txn
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uint8_t pssch_numsym;
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//sci 1A length used to decode on PSCCH.
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uint8_t sci_1a_length;
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//This paramter is set if PSCCH RX is triggered on TX resource pool
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// as part of TX pool sensing procedure.
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uint8_t sense_pscch;
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} sl_nr_rx_config_pscch_pdu_t;
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typedef struct sl_nr_rx_config_pssch_sci_pdu {
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// Expected Length of SCI2 in bits
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uint8_t sci2_len;
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// Used to determine number of SCI2 modulated symbols
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uint8_t sci2_beta_offset;
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// Used to determine number of SCI2 modulated symbols
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//Values will be sl-scaling*100 (sl-scaling values 0.5, 0.65, 0.8, 1)
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uint8_t sci2_alpha_times_100;
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uint16_t targetCodeRate;
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uint8_t mod_order;
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uint8_t num_layers;
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//DMRS SYMBOL MASK. If bit set to 1 indicates it is a DMRS symbol. LSB is symbol 0
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// Table from SPEC 38.211, Table 8.4.1.1.2-1
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uint16_t dmrs_symbol_position;
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// Derived from PSCCH CRC Refer 38.211 section 8.3.1.1
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// to be used for PSSCH DMRS and PSSCH 38.211 Scrambling
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uint16_t Nid;
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// Starting RE of the lowest subchannel.
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//In Sym with PSCCH - Start of PSCCH
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//In Sym without PSCCH - Start of PSSCH
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// freq domain allocation starts
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uint16_t startrb;
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// Number of symbols used for PSCCH
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uint16_t pscch_numsym;
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// Number of RBS used for PSCCH
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uint16_t pscch_numrbs;
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// num subchannels in a resource pool
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uint16_t num_subch;
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// Size of subchannels in RBs
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uint16_t subchannel_size;
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// In case of PSCCH PSSCH RX: this is always 1. Blind decoding done for every channel
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// In case of RESOURCE SENSING: this is equal to number of subchannels forming a resource.
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uint16_t l_subch;
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//number of symbols for Sidelink transmission on PSSCH/PSCCH
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//(Total Sidelink symbols available - number of psfch symbols configured - 2)
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//Guard symbol + AGC symbol are also excluded
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//Indicates the number of symbols for PSCCH+PSSCH txn
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uint8_t pssch_numsym;
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//This paramter is set if PSSCH sensing (PSSCH DMRS RSRP measurement)
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// is triggred as part of TX pool sensing procedure.
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uint8_t sense_pssch;
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} sl_nr_rx_config_pssch_sci_pdu_t;
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typedef struct sl_nr_rx_config_pssch_pdu {
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uint32_t tbslbrm;
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// Transport block size determined by MAC
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uint32_t tb_size;
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uint16_t target_coderate;
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uint8_t harq_pid;
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uint8_t mod_order;
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uint8_t mcs;
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uint8_t mcs_table;
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uint8_t num_layers;
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//REdundancy version to be used for transmission
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uint8_t rv_index;
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uint8_t ndi;
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} sl_nr_rx_config_pssch_pdu_t;
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typedef struct {
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sl_nr_rx_config_type_enum_t pdu_type; // indicates the type of RX config request
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union {
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sl_nr_rx_config_pscch_pdu_t rx_pscch_config_pdu;
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sl_nr_rx_config_pssch_sci_pdu_t rx_sci2_config_pdu;
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sl_nr_rx_config_pssch_pdu_t rx_pssch_config_pdu;
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};
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} sl_nr_rx_config_request_pdu_t;
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// MAC commands PHY to perform an action on RX RESOURCE POOL or RX PSBCH using this RX CONFIG
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// at this TTI as indicated in sfn, slot
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typedef struct {
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uint16_t sfn;
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uint16_t slot;
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uint8_t number_pdus;
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sl_nr_rx_config_request_pdu_t sl_rx_config_list[SL_NR_RX_CONFIG_LIST_NUM];
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} sl_nr_rx_config_request_t;
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//MAC commands PHY to transmit Data on PSCCH, PSSCH.
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typedef struct sl_nr_tx_config_pscch_pssch_pdu {
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//SCI 1A Payload Prepared by MAC, to be sent on PSCCH
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uint8_t pscch_sci_payload[SL_NR_MAX_PSCCH_SCI_LENGTH_IN_BYTES];
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//SCI 1A Payload Length in bits
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uint8_t pscch_sci_payload_len;
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//SCI 2 Payload Prepared by MAC and to be sent on PSSCH
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uint8_t sci2_payload[SL_NR_MAX_PSSCH_SCI_LENGTH_IN_BYTES];
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//SCI 2 Payload Length in bits
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uint8_t sci2_payload_len;
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// Starting RE of the lowest subchannel.
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//In Sym with PSCCH - Start of PSCCH
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//In Sym without PSCCH - Start of PSSCH
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// freq domain allocation starts
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uint16_t startrb;
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// Number of symbols used for PSCCH
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uint16_t pscch_numsym;
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// Number of RBS used for PSCCH
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uint16_t pscch_numrbs;
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// Scrambling Id used for Generation of PSCCH DMRS Symbols
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uint32_t pscch_dmrs_scrambling_id;
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// num subchannels in a resource pool
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uint16_t num_subch;
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// Size of subchannels in RBs
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uint16_t subchannel_size;
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//PSCCH PSSCH TX: Size of subchannels in a PSSCH resource (l_subch)
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uint16_t l_subch;
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//number of symbols for Sidelink transmission on PSSCH/PSCCH
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//(Total Sidelink symbols available - number of psfch symbols configured - 2)
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//Guard symbol + AGC symbol are also excluded
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//Indicates the number of symbols for PSCCH+PSSCH txn
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uint8_t pssch_numsym;
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//.... Other Parameters for SCI-2 and PSSCH
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// Used to determine number of SCI2 modulated symbols
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uint8_t sci2_beta_offset;
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//Values will be sl-scaling*100 (sl-scaling values 0.5, 0.65, 0.8, 1)
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uint8_t sci2_alpha_times_100;
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uint32_t tbslbrm;
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uint32_t tb_size;
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uint16_t target_coderate;
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uint8_t harq_pid;
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uint8_t mod_order;
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uint8_t mcs;
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uint8_t mcs_table;
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uint8_t num_layers;
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uint8_t rv_index;
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uint8_t ndi;
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//DMRS SYMBOL MASK. If bit set to 1 indicates it is a DMRS symbol. LSB is symbol 0
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// Table from SPEC 38.211, Table 8.4.1.1.2-1
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uint16_t dmrs_symbol_position;
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//....TBD.. any additional parameters
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//TX Power for PSSCH in symbol without PSCCH.
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// Power for PSCCH and power for PSSCH in symbol with PSCCH is calculated
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// from this value according to 38.213 section 16
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int16_t pssch_tx_power;
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} sl_nr_tx_config_pscch_pssch_pdu_t;
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// MAC indicates PHY to send PSBCH.
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typedef struct sl_nr_tx_config_psbch_pdu {
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uint8_t psbch_payload[4]; // payload containing sl-MIB
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uint16_t tx_slss_id; // slss_id selected by RRC and to be used for MIB transmission on PSBCH
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int16_t psbch_tx_power; // TX Power used for sending PSBCH
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} sl_nr_tx_config_psbch_pdu_t;
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// MAC commands PHY to perform an action on TX RESOURCE POOL or TX PSBCH using this TX CONFIG
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typedef struct {
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sl_nr_tx_config_type_enum_t pdu_type; // indicates the type of TX config request
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union {
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sl_nr_tx_config_psbch_pdu_t tx_psbch_config_pdu;
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sl_nr_tx_config_pscch_pssch_pdu_t tx_pscch_pssch_config_pdu;
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};
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} sl_nr_tx_config_request_pdu_t;
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// MAC commands PHY to perform an action on TX RESOURCE POOL or TX PSBCH using this TX CONFIG
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// at this TTI as indicated in sfn, slot
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typedef struct {
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uint16_t sfn;
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uint16_t slot;
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uint8_t number_pdus;
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sl_nr_tx_config_request_pdu_t tx_config_list[SL_NR_TX_CONFIG_LIST_NUM];
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} sl_nr_tx_config_request_t;
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typedef enum sl_sync_source_enum {
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SL_SYNC_SOURCE_NONE = 0,
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SL_SYNC_SOURCE_GNBENB, // NR-CELL as sync source
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SL_SYNC_SOURCE_GNSS, // GPS as sync source
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SL_SYNC_SOURCE_SYNC_REF_UE, // another SYNC REF UE as sync source
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SL_SYNC_SOURCE_LOCAL_TIMING, // if LOCAL UE timing is sync source , if above options are not available
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SL_SYNC_SOURCE_MAX
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} sl_sync_source_enum_t ;
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typedef struct sl_nr_ue_bwp_config {
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uint16_t sl_bwp_start; // BWP start RB
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uint16_t sl_bwp_size; // BWP Size in number of RBs
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uint16_t sl_ssb_offset_point_a; // offset in REs from PointA to indicate SSB location
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uint16_t sl_dc_location; // DC location in SL-BWP
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uint8_t sl_num_symbols; // number of sidelink symbols in a non PSBCH sidelink slot
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uint8_t sl_start_symbol;// start sidelink symbol in a non PSBCH sidelink slot
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uint8_t sl_scs; // sub carrier spacing of SL-BWP and SL-SSB
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uint8_t sl_cyclic_prefix; // cyclic prefix of SL-BWP and SL-SSB 0- normal, 1-extended which is not supported
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} sl_nr_bwp_config_t;
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typedef struct sl_nr_ue_sync_source_config {
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// Sync source selected by the UE
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sl_sync_source_enum_t sync_source;
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// if GNSS is sync source - used in DFN calculation from GNSS timing
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//field sl-OffsetDFN, Section 5.8.12 in 38.331
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// value from 0 to 1000,
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uint16_t gnss_dfn_offset;
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//Only sent if sync_source is set to SYNC_SOURCE_SYNC_REF_UE
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//Valid values can be 0-671
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uint16_t rx_slss_id;
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} sl_nr_sync_source_config_t;
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typedef struct
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{
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// REference Rel16 38.101, 38.331
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//For NR-Sidelink operation on PC5 interface
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//Sidelink bandwidth configured - 10, 20, 30, and 40Mhz
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uint16_t sl_bandwidth;
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//Absolute frequency of SL point A in KHz
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//n38 (2570-2620 Mhz), n47 (5855-5925 Mhz) are defined.
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uint32_t sl_frequency;
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//Only 1 SCS-SpecificCarrier allowed for NR-SL communication
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uint16_t sl_grid_size;// bandwidth for each numerology
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uint16_t sl_num_tx_ant;//Number of Tx antennae - value 1
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uint16_t sl_num_rx_ant;//Number of Rx antennae - value 1
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//Indicates presence of 7.5KHz frequency shift wrt LTE anchor cell.
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//Value: 0 = false 1 = true
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uint8_t sl_frequency_shift_7p5khz;
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//Indicates presence of +/-5Khz shift wrt FREF for V2X reference frequencies.
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//Possible values: {-1,0,1}
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uint8_t sl_value_N;
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} sl_nr_carrier_config_t;
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typedef struct {
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// Mask indicating which of the below configs are changed
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// Bit0 - carrier_config, Bit1 - syncsource cfg
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// Bit2 - tdd config, Bit3 - bwp config
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uint32_t config_mask;
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sl_nr_carrier_config_t sl_carrier_config;
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sl_nr_sync_source_config_t sl_sync_source;
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//TDD config either from SL-PRECONFIG or read from SL-MIB
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//In case of TDD-config available from gNB, tdd_table from NR PHY config will be used
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fapi_nr_tdd_table_t tdd_table;
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//only 1 SL-BWP can be configured in REL16, REL17
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sl_nr_bwp_config_t sl_bwp_config;
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} sl_nr_phy_config_request_t;
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#endif
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@@ -40,6 +40,7 @@
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#include "nfapi_nr_interface_scf.h"
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#include "openair2/NR_PHY_INTERFACE/NR_IF_Module.h"
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#include "NR_Packet_Drop.h"
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#include "nfapi/open-nFAPI/nfapi/public_inc/sidelink_nr_ue_interface.h"
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extern slot_rnti_mcs_s slot_rnti_mcs[NUM_NFAPI_SLOT];
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@@ -110,6 +111,35 @@ typedef struct {
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} nr_uplink_indication_t;
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||||
|
||||
typedef struct {
|
||||
/// module id
|
||||
module_id_t module_id;
|
||||
/// gNB index
|
||||
uint32_t gNB_index;
|
||||
/// component carrier id
|
||||
int cc_id;
|
||||
/// frame
|
||||
frame_t frame_rx;
|
||||
/// slot rx
|
||||
uint32_t slot_rx;
|
||||
/// frame tx
|
||||
frame_t frame_tx;
|
||||
/// slot tx
|
||||
uint32_t slot_tx;
|
||||
|
||||
/// NR UE FAPI-like P7 message, direction: L1 to L2
|
||||
/// data reception indication structure
|
||||
sl_nr_rx_indication_t *rx_ind;
|
||||
|
||||
//SCI received by PHY sent to MAC here
|
||||
sl_nr_sci_indication_t *sci_ind;
|
||||
|
||||
/// PHY specific data structure that can be passed on to L2 via nr_sidelink_indication_t and
|
||||
/// back to L1 via the nr_scheduled_response_t
|
||||
void *phy_data;
|
||||
} nr_sidelink_indication_t;
|
||||
|
||||
|
||||
// Downlink subframe P7
|
||||
|
||||
|
||||
@@ -130,6 +160,12 @@ typedef struct {
|
||||
/// uplink transmission configuration request structure
|
||||
fapi_nr_ul_config_request_t *ul_config;
|
||||
|
||||
// Sidelink RX configuration request
|
||||
sl_nr_rx_config_request_t *sl_rx_config;
|
||||
|
||||
// Sidelink TX configuration request
|
||||
sl_nr_tx_config_request_t *sl_tx_config;
|
||||
|
||||
/// data transmission request structure
|
||||
fapi_nr_tx_request_t *tx_request;
|
||||
|
||||
@@ -150,6 +186,18 @@ typedef struct {
|
||||
|
||||
} nr_phy_config_t;
|
||||
|
||||
typedef struct {
|
||||
/// module id
|
||||
uint8_t Mod_id;
|
||||
/// component carrier id
|
||||
uint8_t CC_id;
|
||||
|
||||
/// NR UE FAPI-like P5 message
|
||||
/// physical layer configuration request structure
|
||||
sl_nr_phy_config_request_t sl_config_req;
|
||||
|
||||
} nr_sl_phy_config_t;
|
||||
|
||||
typedef struct {
|
||||
/// module id
|
||||
uint8_t Mod_id;
|
||||
@@ -170,6 +218,15 @@ typedef struct {
|
||||
*/
|
||||
typedef int8_t (nr_ue_scheduled_response_f)(nr_scheduled_response_t *scheduled_response);
|
||||
|
||||
/*
|
||||
* Generic type of an application-defined callback to return various
|
||||
* types of data to the application.
|
||||
* EXPECTED RETURN VALUES:
|
||||
* -1: Failed to consume bytes. Abort the mission.
|
||||
* Non-negative return values indicate success, and ignored.
|
||||
*/
|
||||
typedef int8_t (nr_sl_ue_scheduled_response_f)(nr_scheduled_response_t *sl_scheduled_response);
|
||||
|
||||
|
||||
/*
|
||||
* Generic type of an application-defined callback to return various
|
||||
@@ -180,6 +237,15 @@ typedef int8_t (nr_ue_scheduled_response_f)(nr_scheduled_response_t *scheduled_r
|
||||
*/
|
||||
typedef int8_t (nr_ue_phy_config_request_f)(nr_phy_config_t *phy_config);
|
||||
|
||||
/*
|
||||
* Generic type of an application-defined callback to return various
|
||||
* types of data to the application.
|
||||
* EXPECTED RETURN VALUES:
|
||||
* -1: Failed to consume bytes. Abort the mission.
|
||||
* Non-negative return values indicate success, and ignored.
|
||||
*/
|
||||
typedef int8_t (nr_sl_ue_phy_config_request_f)(nr_sl_phy_config_t *sl_phy_config);
|
||||
|
||||
/*
|
||||
* Generic type of an application-defined callback to return various
|
||||
* types of data to the application.
|
||||
@@ -205,6 +271,16 @@ typedef int (nr_ue_dl_indication_f)(nr_downlink_indication_t *dl_info);
|
||||
*/
|
||||
typedef int (nr_ue_ul_indication_f)(nr_uplink_indication_t *ul_info);
|
||||
|
||||
|
||||
/*
|
||||
* Generic type of an application-defined callback to return various
|
||||
* types of data to the application.
|
||||
* EXPECTED RETURN VALUES:
|
||||
* -1: Failed to consume bytes. Abort the mission.
|
||||
* Non-negative return values indicate success, and ignored.
|
||||
*/
|
||||
typedef int (nr_ue_sl_indication_f)(nr_sidelink_indication_t *sl_info);
|
||||
|
||||
// TODO check this stuff can be reuse of need modification
|
||||
typedef struct nr_ue_if_module_s {
|
||||
nr_ue_scheduled_response_f *scheduled_response;
|
||||
@@ -212,6 +288,7 @@ typedef struct nr_ue_if_module_s {
|
||||
nr_ue_synch_request_f *synch_request;
|
||||
nr_ue_dl_indication_f *dl_indication;
|
||||
nr_ue_ul_indication_f *ul_indication;
|
||||
nr_ue_sl_indication_f *sl_indication;
|
||||
uint32_t cc_mask;
|
||||
uint32_t current_frame;
|
||||
uint32_t current_slot;
|
||||
|
||||
Reference in New Issue
Block a user