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openairinterface5g/openair2/LAYER2/NR_MAC_UE/mac_defs.h
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Jaroslava Fiedlerova 12f29b828e Merge remote-tracking branch 'origin/NR_UE_trigger_reestablishment' into integration_2024_w46 (!2777) 
NR UE trigger for re-establishment

The implementation in this MR triggers RRC re-establishment at the UE in case
of radio link failure either for out of sync messages from lower layers or in
case maximum number of RLC retransmissions is reached.
2024-11-18 10:12:25 +01:00

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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/* \file mac_defs.h
* \brief MAC data structures and constants
* \author R. Knopp, K.H. HSU
* \date 2018
* \version 0.1
* \company Eurecom / NTUST
* \email: knopp@eurecom.fr, kai-hsiang.hsu@eurecom.fr
* \note
* \warning
*/
#ifndef __LAYER2_NR_MAC_DEFS_H__
#define __LAYER2_NR_MAC_DEFS_H__
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "common/platform_types.h"
/* IF */
#include "NR_IF_Module.h"
#include "fapi_nr_ue_interface.h"
/* MAC */
#include "LAYER2/NR_MAC_COMMON/nr_mac.h"
#include "LAYER2/NR_MAC_COMMON/nr_mac_common.h"
#include "NR_MAC_COMMON/nr_mac_extern.h"
#include "mac_defs_sl.h"
/* RRC */
#include "NR_DRX-Config.h"
#include "NR_SchedulingRequestConfig.h"
#include "NR_BSR-Config.h"
#include "NR_TAG-Config.h"
#include "NR_PHR-Config.h"
#include "NR_RNTI-Value.h"
#include "NR_MIB.h"
#include "NR_MAC-CellGroupConfig.h"
#include "NR_PhysicalCellGroupConfig.h"
#include "NR_CellGroupConfig.h"
#include "NR_ServingCellConfig.h"
#include "NR_MeasConfig.h"
#include "NR_ServingCellConfigCommonSIB.h"
// ==========
// NR UE defs
// ==========
#define NR_BSR_TRIGGER_NONE (0) /* No BSR Trigger */
#define NR_BSR_TRIGGER_REGULAR (1) /* For Regular and ReTxBSR Expiry Triggers */
#define NR_BSR_TRIGGER_PERIODIC (2) /* For BSR Periodic Timer Expiry Trigger */
#define NR_INVALID_LCGID (NR_MAX_NUM_LCGID)
#define MAX_NUM_BWP_UE 5
#define NR_MAX_SR_ID 8 // SchedulingRequestId ::= INTEGER (0..7)
/*!\brief value for indicating BSR Timer is not running */
#define NR_MAC_UE_BSR_TIMER_NOT_RUNNING (0xFFFF)
// ================================================
// SSB to RO mapping private defines and structures
// ================================================
#define MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PERIOD (16) // Maximum association period is 16
#define MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD (16) // Max association pattern period is 160ms and minimum PRACH configuration period is 10ms
#define MAX_NB_ASSOCIATION_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD (16) // Max nb of association periods in an association pattern period of 160ms
#define MAX_NB_FRAME_IN_PRACH_CONF_PERIOD (16) // Max PRACH configuration period is 160ms and frame is 10ms
#define MAX_NB_SLOT_IN_FRAME (160) // Max number of slots in a frame (@ SCS 240kHz = 160)
#define MAX_NB_FRAME_IN_ASSOCIATION_PATTERN_PERIOD (16) // Maximum number of frames in the maximum association pattern period
#define MAX_NB_SSB (64) // Maximum number of possible SSB indexes
#define MAX_RO_PER_SSB (8) // Maximum number of consecutive ROs that can be mapped to an SSB according to the ssb_per_RACH config
// Maximum number of ROs that can be mapped to an SSB in an association pattern
// This is to reserve enough elements in the SSBs list for each mapped ROs for a single SSB
// An arbitrary maximum number is chosen to be safe: maximum number of slots in an association pattern * maximum number of ROs in a slot
#define MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN (MAX_TDM*MAX_FDM*MAX_NB_SLOT_IN_FRAME*MAX_NB_FRAME_IN_ASSOCIATION_PATTERN_PERIOD)
// ===============
// DCI fields defs
// ===============
#define NBR_NR_FORMATS 8 // The number of formats is 8 (0_0, 0_1, 1_0, 1_1, 2_0, 2_1, 2_2, 2_3)
#define NBR_NR_DCI_FIELDS 56 // The number of different dci fields defined in TS 38.212 subclause 7.3.1
#define IDENTIFIER_DCI_FORMATS 0
#define CARRIER_IND 1
#define SUL_IND_0_1 2
#define SLOT_FORMAT_IND 3
#define PRE_EMPTION_IND 4
#define BLOCK_NUMBER 5
#define CLOSE_LOOP_IND 6
#define BANDWIDTH_PART_IND 7
#define SHORT_MESSAGE_IND 8
#define SHORT_MESSAGES 9
#define FREQ_DOM_RESOURCE_ASSIGNMENT_UL 10
#define FREQ_DOM_RESOURCE_ASSIGNMENT_DL 11
#define TIME_DOM_RESOURCE_ASSIGNMENT 12
#define VRB_TO_PRB_MAPPING 13
#define PRB_BUNDLING_SIZE_IND 14
#define RATE_MATCHING_IND 15
#define ZP_CSI_RS_TRIGGER 16
#define FREQ_HOPPING_FLAG 17
#define TB1_MCS 18
#define TB1_NDI 19
#define TB1_RV 20
#define TB2_MCS 21
#define TB2_NDI 22
#define TB2_RV 23
#define MCS 24
#define NDI 25
#define RV 26
#define HARQ_PROCESS_NUMBER 27
#define DAI_ 28
#define FIRST_DAI 29
#define SECOND_DAI 30
#define TB_SCALING 31
#define TPC_PUSCH 32
#define TPC_PUCCH 33
#define PUCCH_RESOURCE_IND 34
#define PDSCH_TO_HARQ_FEEDBACK_TIME_IND 35
#define SRS_RESOURCE_IND 36
#define PRECOD_NBR_LAYERS 37
#define ANTENNA_PORTS 38
#define TCI 39
#define SRS_REQUEST 40
#define TPC_CMD 41
#define CSI_REQUEST 42
#define CBGTI 43
#define CBGFI 44
#define PTRS_DMRS 45
#define BETA_OFFSET_IND 46
#define DMRS_SEQ_INI 47
#define UL_SCH_IND 48
#define PADDING_NR_DCI 49
#define SUL_IND_0_0 50
#define RA_PREAMBLE_INDEX 51
#define SUL_IND_1_0 52
#define SS_PBCH_INDEX 53
#define PRACH_MASK_INDEX 54
#define RESERVED_NR_DCI 55
// Define the UE L2 states with X-Macro
#define NR_UE_L2_STATES \
UE_STATE(UE_NOT_SYNC) \
UE_STATE(UE_SYNC) \
UE_STATE(UE_PERFORMING_RA) \
UE_STATE(UE_CONNECTED) \
UE_STATE(UE_DETACHING)
typedef enum {
phr_cause_prohibit_timer = 0,
phr_cause_periodic_timer,
phr_cause_phr_config,
} NR_UE_PHR_Reporting_cause_t;
/*!\brief UE layer 2 status */
typedef enum {
#define UE_STATE(state) state,
NR_UE_L2_STATES
#undef UE_STATE
} NR_UE_L2_STATE_t;
typedef struct {
pucch_format_nr_t format;
uint8_t startingSymbolIndex;
uint8_t nrofSymbols;
uint16_t PRB_offset;
uint8_t nb_CS_indexes;
uint8_t initial_CS_indexes[MAX_NB_CYCLIC_SHIFT];
} initial_pucch_resource_t;
typedef enum {
GO_TO_IDLE,
DETACH,
T300_EXPIRY,
RE_ESTABLISHMENT
} NR_UE_MAC_reset_cause_t;
typedef struct {
// after multiplexing buffer remain for each lcid
int32_t LCID_buffer_remain;
// logical channel group id of this LCID
long LCGID;
// Bj bucket usage per lcid
int32_t Bj;
NR_timer_t Bj_timer;
} NR_LC_SCHEDULING_INFO;
typedef struct {
bool active_SR_ID;
/// SR pending as defined in 38.321
bool pending;
/// SR_COUNTER as defined in 38.321
uint32_t counter;
/// sr ProhibitTimer
NR_timer_t prohibitTimer;
// Maximum number of SR transmissions
uint32_t maxTransmissions;
} nr_sr_info_t;
typedef struct {
bool is_configured;
///timer before triggering a periodic PHR
NR_timer_t periodicPHR_Timer;
///timer before triggering a prohibit PHR
NR_timer_t prohibitPHR_Timer;
///DL Pathloss change value
uint16_t PathlossLastValue;
///number of subframe before triggering a periodic PHR
int16_t periodicPHR_SF;
///number of subframe before triggering a prohibit PHR
int16_t prohibitPHR_SF;
///DL Pathloss Change in db
uint16_t PathlossChange_db;
int phr_reporting;
bool was_mac_reset;
} nr_phr_info_t;
// LTE structure, might need to be adapted for NR
typedef struct {
// lcs scheduling info
NR_LC_SCHEDULING_INFO lc_sched_info[NR_MAX_NUM_LCID];
// SR INFO
nr_sr_info_t sr_info[NR_MAX_SR_ID];
/// BSR report flag management
uint8_t BSR_reporting_active;
// LCID triggering BSR
NR_LogicalChannelIdentity_t regularBSR_trigger_lcid;
// logicalChannelSR-DelayTimer
NR_timer_t sr_DelayTimer;
/// retxBSR-Timer
NR_timer_t retxBSR_Timer;
/// periodicBSR-Timer
NR_timer_t periodicBSR_Timer;
nr_phr_info_t phr_info;
} NR_UE_SCHEDULING_INFO;
typedef enum {
nrRA_UE_IDLE,
nrRA_GENERATE_PREAMBLE,
nrRA_WAIT_RAR,
nrRA_WAIT_MSGB,
nrRA_WAIT_CONTENTION_RESOLUTION,
nrRA_SUCCEEDED,
nrRA_FAILED,
} nrRA_UE_state_t;
static const char *const nrra_ue_text[] =
{"UE_IDLE", "GENERATE_PREAMBLE", "WAIT_RAR", "WAIT_MSGB", "WAIT_CONTENTION_RESOLUTION", "RA_SUCCEEDED", "RA_FAILED"};
typedef struct {
/// PRACH format retrieved from prach_ConfigIndex
uint16_t prach_format;
/// Preamble Tx Counter
uint8_t RA_PREAMBLE_TRANSMISSION_COUNTER;
/// Preamble Power Ramping Counter
uint8_t RA_PREAMBLE_POWER_RAMPING_COUNTER;
/// 2-step RA power offset
int POWER_OFFSET_2STEP_RA;
/// Target received power at gNB. Baseline is range -202..-60 dBm. Depends on delta preamble, power ramping counter and step.
int ra_PREAMBLE_RECEIVED_TARGET_POWER;
/// PRACH index for TDD (0 ... 6) depending on TDD configuration and prachConfigIndex
uint8_t ra_TDD_map_index;
/// RA Preamble Power Ramping Step in dB
uint32_t RA_PREAMBLE_POWER_RAMPING_STEP;
///
uint8_t RA_PREAMBLE_BACKOFF;
///
uint8_t RA_SCALING_FACTOR_BI;
/// Indicating whether it is 2-step or 4-step RA
nr_ra_type_t RA_TYPE;
/// UE configured maximum output power
int RA_PCMAX;
} NR_PRACH_RESOURCES_t;
typedef struct {
// pointer to RACH config dedicated
NR_RACH_ConfigDedicated_t *rach_ConfigDedicated;
/// state of RA procedure
nrRA_UE_state_t ra_state;
/// RA contention type
uint8_t cfra;
/// RA type
nr_ra_type_t ra_type;
/// RA rx frame offset: compensate RA rx offset introduced by OAI gNB.
uint8_t RA_offset;
/// MsgB SuccessRAR MAC subheader
int8_t MsgB_R;
int8_t MsgB_CH_ACESS_CPEXT;
uint8_t MsgB_TPC;
int8_t MsgB_HARQ_FTI;
uint16_t timing_advance_command;
int8_t PUCCH_RI;
/// RA-rnti
uint16_t ra_rnti;
/// MsgB RNTI
uint16_t MsgB_rnti;
/// Temporary CRNTI
uint16_t t_crnti;
/// number of attempt for rach
uint8_t RA_attempt_number;
/// Random-access procedure flag
bool RA_active;
/// Random-access preamble index
int ra_PreambleIndex;
// When multiple SSBs per RO is configured, this indicates which one is selected in this RO -> this is used to properly compute the PRACH preamble
uint8_t ssb_nb_in_ro;
/// Random-access window counter
int16_t RA_window_cnt;
/// Flag to monitor if matching RAPID was received in RAR
uint8_t RA_RAPID_found;
/// Flag to monitor if BI was received in RAR
uint8_t RA_BI_found;
/// Random-access backoff counter
int16_t RA_backoff_indicator;
/// Flag to indicate whether preambles Group A was used
uint8_t RA_usedGroupA;
/// RA backoff counter
int16_t RA_backoff_cnt;
/// RA max number of preamble transmissions
int preambleTransMax;
/// Nb of preambles per SSB
long cb_preambles_per_ssb;
int starting_preamble_nb;
/// Received TPC command (in dB) from RAR
int8_t Msg3_TPC;
/// Flag to indicate whether it is the first Msg3 to be transmitted
bool first_Msg3;
/// RA Msg3 size in bytes
uint8_t Msg3_size;
/// Msg3 buffer
uint8_t *Msg3_buffer;
bool msg3_C_RNTI;
/// Random-access Contention Resolution Timer
NR_timer_t contention_resolution_timer;
/// Transmitted UE Contention Resolution Identifier
uint8_t cont_res_id[6];
/// BeamfailurerecoveryConfig
NR_BeamFailureRecoveryConfig_t RA_BeamFailureRecoveryConfig;
NR_PRACH_RESOURCES_t prach_resources;
} RA_config_t;
typedef struct {
bool active;
bool ack_received;
uint8_t pucch_resource_indicator;
frame_t ul_frame;
int ul_slot;
uint8_t ack;
int n_CCE;
int N_CCE;
int dai_cumul;
int8_t delta_pucch;
uint32_t R;
uint32_t TBS;
int last_ndi;
} NR_UE_HARQ_STATUS_t;
typedef struct {
uint32_t R;
uint32_t TBS;
int last_ndi;
} NR_UL_HARQ_INFO_t;
typedef struct {
uint8_t freq_hopping;
uint8_t mcs;
uint8_t Msg3_t_alloc;
uint16_t Msg3_f_alloc;
} RAR_grant_t;
typedef struct {
NR_PUCCH_Resource_t *pucch_resource;
uint32_t ack_payload;
uint8_t sr_payload;
uint32_t csi_part1_payload;
uint32_t csi_part2_payload;
int n_sr;
int n_csi;
int n_harq;
int n_CCE;
int N_CCE;
int initial_pucch_id;
} PUCCH_sched_t;
typedef struct {
uint32_t ssb_index;
/// SSB RSRP in dBm
short ssb_rsrp_dBm;
} NR_SSB_meas_t;
typedef enum ta_type {
no_ta = 0,
adjustment_ta,
rar_ta,
} ta_type_t;
typedef struct NR_UL_TIME_ALIGNMENT {
/// TA command received from the gNB
ta_type_t ta_apply;
int ta_command;
int frame;
int slot;
} NR_UL_TIME_ALIGNMENT_t;
// The PRACH Config period is a series of selected slots in one or multiple frames
typedef struct prach_conf_period {
prach_occasion_slot_t prach_occasion_slot_map[MAX_NB_FRAME_IN_PRACH_CONF_PERIOD][MAX_NB_SLOT_IN_FRAME];
uint16_t nb_of_prach_occasion; // Total number of PRACH occasions in the PRACH Config period
uint8_t nb_of_frame; // Size of the PRACH Config period in number of 10ms frames
uint8_t nb_of_slot; // Nb of slots in each frame
} prach_conf_period_t;
// The association period is a series of PRACH Config periods
typedef struct prach_association_period {
prach_conf_period_t *prach_conf_period_list[MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PERIOD];
uint8_t nb_of_prach_conf_period; // Nb of PRACH configuration periods within the association period
uint8_t nb_of_frame; // Total number of frames included in the association period
} prach_association_period_t;
// The association pattern is a series of Association periods
typedef struct prach_association_pattern {
prach_association_period_t prach_association_period_list[MAX_NB_ASSOCIATION_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD];
prach_conf_period_t prach_conf_period_list[MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD];
uint8_t nb_of_assoc_period; // Nb of association periods within the association pattern
uint8_t nb_of_prach_conf_period_in_max_period; // Nb of PRACH configuration periods within the maximum association pattern period (according to the size of the configured PRACH
uint8_t nb_of_frame; // Total number of frames included in the association pattern period (after mapping the SSBs and determining the real association pattern length)
} prach_association_pattern_t;
// SSB details
typedef struct ssb_info {
prach_occasion_info_t *mapped_ro[MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN]; // List of mapped RACH Occasions to this SSB index
uint32_t nb_mapped_ro; // Total number of mapped ROs to this SSB index
} ssb_info_t;
// List of all the possible SSBs and their details
typedef struct ssb_list_info {
ssb_info_t *tx_ssb;
int nb_tx_ssb;
int nb_ssb_per_index[MAX_NB_SSB];
} ssb_list_info_t;
typedef struct nr_lcordered_info_s {
// logical channels ids ordered as per priority
NR_LogicalChannelIdentity_t lcid;
int sr_id;
long priority;
uint32_t pbr; // in B/s (UINT_MAX = infinite)
// Bucket size per lcid
uint32_t bucket_size;
bool sr_DelayTimerApplied;
bool lc_SRMask;
} nr_lcordered_info_t;
typedef struct {
uint8_t payload[NR_CCCH_PAYLOAD_SIZE_MAX];
} __attribute__ ((__packed__)) NR_CCCH_PDU;
typedef struct {
NR_SearchSpace_t *otherSI_SS;
NR_SearchSpace_t *ra_SS;
NR_SearchSpace_t *paging_SS;
NR_ControlResourceSet_t *commonControlResourceSet;
A_SEQUENCE_OF(NR_ControlResourceSet_t) list_Coreset;
A_SEQUENCE_OF(NR_SearchSpace_t) list_SS;
} NR_BWP_PDCCH_t;
typedef struct csi_payload {
uint32_t part1_payload;
uint32_t part2_payload;
int p1_bits;
int p2_bits;
} csi_payload_t;
typedef enum {
WIDEBAND_ON_PUCCH,
SUBBAND_ON_PUCCH,
ON_PUSCH
} CSI_mapping_t;
/*!\brief Top level UE MAC structure */
typedef struct NR_UE_MAC_INST_s {
module_id_t ue_id;
NR_UE_L2_STATE_t state;
int servCellIndex;
long physCellId;
int first_sync_frame;
bool get_sib1;
bool get_otherSI;
NR_MIB_t *mib;
struct NR_SI_SchedulingInfo *si_SchedulingInfo;
struct NR_SI_SchedulingInfo_v1700 *si_SchedulingInfo_v1700;
int si_window_start;
ssb_list_info_t ssb_list[MAX_NUM_BWP_UE];
prach_association_pattern_t prach_assoc_pattern[MAX_NUM_BWP_UE];
NR_UE_ServingCell_Info_t sc_info;
A_SEQUENCE_OF(NR_UE_DL_BWP_t) dl_BWPs;
A_SEQUENCE_OF(NR_UE_UL_BWP_t) ul_BWPs;
NR_BWP_PDCCH_t config_BWP_PDCCH[MAX_NUM_BWP_UE];
NR_ControlResourceSet_t *coreset0;
NR_SearchSpace_t *search_space_zero;
NR_UE_DL_BWP_t *current_DL_BWP;
NR_UE_UL_BWP_t *current_UL_BWP;
bool harq_ACK_SpatialBundlingPUCCH;
bool harq_ACK_SpatialBundlingPUSCH;
uint32_t uecap_maxMIMO_PDSCH_layers;
uint32_t uecap_maxMIMO_PUSCH_layers_cb;
uint32_t uecap_maxMIMO_PUSCH_layers_nocb;
NR_UL_TIME_ALIGNMENT_t ul_time_alignment;
NR_TDD_UL_DL_ConfigCommon_t *tdd_UL_DL_ConfigurationCommon;
frame_type_t frame_type;
/* Random Access */
/// CRNTI
uint16_t crnti;
/// RA configuration
RA_config_t ra;
/// SSB index from MIB decoding
uint8_t mib_ssb;
uint32_t mib_additional_bits;
int mib_frame;
nr_csi_report_t csi_report_template[MAX_CSI_REPORTCONFIG];
/// measurements from CSI-RS
fapi_nr_csirs_measurements_t csirs_measurements;
//// FAPI-like interface message
fapi_nr_ul_config_request_t *ul_config_request;
fapi_nr_dl_config_request_t *dl_config_request;
/// Interface module instances
nr_ue_if_module_t *if_module;
nr_phy_config_t phy_config;
nr_synch_request_t synch_request;
// order lc info
A_SEQUENCE_OF(nr_lcordered_info_t) lc_ordered_list;
NR_UE_SCHEDULING_INFO scheduling_info;
NR_timer_t *data_inactivity_timer;
int dmrs_TypeA_Position;
int p_Max;
int p_Max_alt;
int n_ta_offset; // -1 not present, otherwise value to be applied
long pdsch_HARQ_ACK_Codebook;
NR_Type0_PDCCH_CSS_config_t type0_PDCCH_CSS_config;
frequency_range_t frequency_range;
uint16_t nr_band;
uint8_t ssb_subcarrier_offset;
int ssb_start_subcarrier;
NR_SSB_meas_t ssb_measurements;
dci_pdu_rel15_t def_dci_pdu_rel15[NR_MAX_SLOTS_PER_FRAME][8];
// Defined for abstracted mode
nr_downlink_indication_t dl_info;
NR_UE_HARQ_STATUS_t dl_harq_info[NR_MAX_HARQ_PROCESSES];
NR_UL_HARQ_INFO_t ul_harq_info[NR_MAX_HARQ_PROCESSES];
NR_TAG_Id_t tag_Id;
A_SEQUENCE_OF(NR_TAG_t) TAG_list;
NR_TimeAlignmentTimer_t timeAlignmentTimerCommon;
NR_timer_t time_alignment_timer;
nr_emulated_l1_t nr_ue_emul_l1;
pthread_mutex_t mutex_dl_info;
//SIDELINK MAC PARAMETERS
sl_nr_ue_mac_params_t *SL_MAC_PARAMS;
// PUCCH closed loop power control state
int G_b_f_c;
bool pucch_power_control_initialized;
int f_b_f_c;
bool pusch_power_control_initialized;
int delta_msg2;
pthread_mutex_t if_mutex;
} NR_UE_MAC_INST_t;
/*@}*/
#endif /*__LAYER2_MAC_DEFS_H__ */
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