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openairinterface5g/openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h
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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.h
* \brief MAC data structures, constant, and function prototype
* \author Navid Nikaein and Raymond Knopp, WIE-TAI CHEN
* \date 2011, 2018
* \version 0.5
* \company Eurecom, NTUST
* \email navid.nikaein@eurecom.fr, kroempa@gmail.com
*/
/** @defgroup _oai2 openair2 Reference Implementation
* @ingroup _ref_implementation_
* @{
*/
/*@}*/
#ifndef __LAYER2_NR_MAC_GNB_H__
#define __LAYER2_NR_MAC_GNB_H__
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* Commmon */
#include "targets/ARCH/COMMON/common_lib.h"
#include "COMMON/platform_constants.h"
#include "common/ran_context.h"
/* RRC */
#include "NR_BCCH-BCH-Message.h"
#include "NR_CellGroupConfig.h"
#include "NR_ServingCellConfigCommon.h"
#include "NR_MeasConfig.h"
/* PHY */
#include "PHY/defs_gNB.h"
#include "time_meas.h"
/* Interface */
#include "nfapi_nr_interface_scf.h"
#include "NR_PHY_INTERFACE/NR_IF_Module.h"
/* MAC */
#include "LAYER2/MAC/mac.h"
#include "LAYER2/MAC/mac_proto.h"
#include "LAYER2/NR_MAC_COMMON/nr_mac_extern.h"
#include "LAYER2/NR_MAC_COMMON/nr_mac_common.h"
#include "NR_TAG.h"
#include <openair3/UICC/usim_interface.h>
/* Defs */
#define MAX_NUM_BWP 2
#define MAX_NUM_CORESET 12
#define MAX_NUM_CCE 90
#define MAX_HARQ_ROUNDS 4
/*!\brief Maximum number of random access process */
#define NR_NB_RA_PROC_MAX 4
#define MAX_NUM_OF_SSB 64
/*! \brief NR_list_t is a "list" (of users, HARQ processes, slices, ...).
* Especially useful in the scheduler and to keep "classes" of users. */
typedef struct {
int head;
int *next;
int tail;
int len;
} NR_list_t;
typedef enum {
RA_IDLE = 0,
Msg2 = 1,
WAIT_Msg3 = 2,
Msg3_retransmission = 3,
Msg4 = 4,
WAIT_Msg4_ACK = 5
} RA_gNB_state_t;
typedef struct NR_preamble_ue {
uint8_t num_preambles;
uint8_t *preamble_list;
} NR_preamble_ue_t;
typedef struct NR_sched_pdcch {
uint16_t BWPSize;
uint16_t BWPStart;
uint8_t CyclicPrefix;
uint8_t SubcarrierSpacing;
uint8_t StartSymbolIndex;
uint8_t CceRegMappingType;
uint8_t RegBundleSize;
uint8_t InterleaverSize;
uint16_t ShiftIndex;
uint8_t DurationSymbols;
int n_rb;
} NR_sched_pdcch_t;
/*! \brief gNB template for the Random access information */
typedef struct {
/// Flag to indicate this process is active
RA_gNB_state_t state;
/// BWP id of RA process
int bwp_id;
/// CORESET0 configured flag
int coreset0_configured;
/// Slot where preamble was received
uint8_t preamble_slot;
/// Subframe where Msg2 is to be sent
uint8_t Msg2_slot;
/// Frame where Msg2 is to be sent
frame_t Msg2_frame;
/// Subframe where Msg3 is to be sent
sub_frame_t Msg3_slot;
/// Frame where Msg3 is to be sent
frame_t Msg3_frame;
/// Msg3 time domain allocation index
uint8_t Msg3_tda_id;
/// Subframe where Msg4 is to be sent
sub_frame_t Msg4_slot;
/// Frame where Msg4 is to be sent
frame_t Msg4_frame;
/// harq_pid used for Msg4 transmission
uint8_t harq_pid;
/// UE RNTI allocated during RAR
rnti_t rnti;
/// RA RNTI allocated from received PRACH
uint16_t RA_rnti;
/// Received preamble_index
uint8_t preamble_index;
/// Received UE Contention Resolution Identifier
uint8_t cont_res_id[6];
/// Timing offset indicated by PHY
int16_t timing_offset;
/// Timeout for RRC connection
int16_t RRC_timer;
/// Msg3 first RB
uint8_t msg3_first_rb;
/// Msg3 number of RB
uint8_t msg3_nb_rb;
/// Msg3 BWP start
uint8_t msg3_bwp_start;
/// Msg3 TPC command
uint8_t msg3_TPC;
/// Msg3 ULdelay command
uint8_t msg3_ULdelay;
/// Msg3 cqireq command
uint8_t msg3_cqireq;
/// Round of Msg3 HARQ
uint8_t msg3_round;
/// Flag to indicate if Msg3 carries a DCCH or DTCH message
bool msg3_dcch_dtch;
int msg3_startsymb;
int msg3_nrsymb;
/// TBS used for Msg4
int msg4_TBsize;
/// MCS used for Msg4
int msg4_mcs;
/// MAC PDU length for Msg4
int mac_pdu_length;
/// RA search space
NR_SearchSpace_t *ra_ss;
/// RA Coreset
NR_ControlResourceSet_t *coreset;
NR_sched_pdcch_t sched_pdcch;
// Beam index
uint8_t beam_id;
/// CellGroup for UE that is to come (NSA is non-null, null for SA)
NR_CellGroupConfig_t *CellGroup;
/// Preambles for contention-free access
NR_preamble_ue_t preambles;
/// NSA: the UEs C-RNTI to use
rnti_t crnti;
/// CFRA flag
bool cfra;
} NR_RA_t;
/*! \brief gNB common channels */
typedef struct {
int physCellId;
int p_gNB;
int Ncp;
int nr_band;
lte_frame_type_t frame_type;
uint64_t dl_CarrierFreq;
NR_BCCH_BCH_Message_t *mib;
NR_ServingCellConfigCommon_t *ServingCellConfigCommon;
NR_ARFCN_ValueEUTRA_t ul_CarrierFreq;
long ul_Bandwidth;
/// Outgoing MIB PDU for PHY
MIB_PDU MIB_pdu;
/// Outgoing BCCH pdu for PHY
BCCH_PDU BCCH_pdu;
/// Outgoing BCCH DCI allocation
uint32_t BCCH_alloc_pdu;
/// Outgoing CCCH pdu for PHY
CCCH_PDU CCCH_pdu;
/// Outgoing PCCH DCI allocation
uint32_t PCCH_alloc_pdu;
/// Outgoing PCCH pdu for PHY
PCCH_PDU PCCH_pdu;
/// Template for RA computations
NR_RA_t ra[NR_NB_RA_PROC_MAX];
/// VRB map for common channels
uint16_t vrb_map[275];
/// VRB map for common channels and PUSCH, dynamically allocated because
/// length depends on number of slots and RBs
uint16_t *vrb_map_UL;
/// number of subframe allocation pattern available for MBSFN sync area
uint8_t num_sf_allocation_pattern;
///Number of active SSBs
uint8_t num_active_ssb;
//Total available prach occasions per configuration period
uint32_t total_prach_occasions_per_config_period;
//Total available prach occasions
uint32_t total_prach_occasions;
//Max Association period
uint8_t max_association_period;
//SSB index
uint8_t ssb_index[MAX_NUM_OF_SSB];
//CB preambles for each SSB
uint8_t cb_preambles_per_ssb;
} NR_COMMON_channels_t;
// SP ZP CSI-RS Resource Set Activation/Deactivation MAC CE
typedef struct sp_zp_csirs {
bool is_scheduled; //ZP CSI-RS ACT/Deact MAC CE is scheduled
bool act_deact; //Activation/Deactivation indication
uint8_t serv_cell_id; //Identity of Serving cell for which MAC CE applies
uint8_t bwpid; //Downlink BWP id
uint8_t rsc_id; //SP ZP CSI-RS resource set
} sp_zp_csirs_t;
//SP CSI-RS / CSI-IM Resource Set Activation/Deactivation MAC CE
#define MAX_CSI_RESOURCE_SET 64
typedef struct csi_rs_im {
bool is_scheduled;
bool act_deact;
uint8_t serv_cellid;
uint8_t bwp_id;
bool im;
uint8_t csi_im_rsc_id;
uint8_t nzp_csi_rsc_id;
uint8_t nb_tci_resource_set_id;
uint8_t tci_state_id [ MAX_CSI_RESOURCE_SET ];
} csi_rs_im_t;
typedef struct pdcchStateInd {
bool is_scheduled;
uint8_t servingCellId;
uint8_t coresetId;
uint8_t tciStateId;
bool tci_present_inDCI;
} pdcchStateInd_t;
typedef struct pucchSpatialRelation {
bool is_scheduled;
uint8_t servingCellId;
uint8_t bwpId;
uint8_t pucchResourceId;
bool s0tos7_actDeact[8];
} pucchSpatialRelation_t;
typedef struct SPCSIReportingpucch {
bool is_scheduled;
uint8_t servingCellId;
uint8_t bwpId;
bool s0tos3_actDeact[4];
} SPCSIReportingpucch_t;
#define MAX_APERIODIC_TRIGGER_STATES 128 //38.331
typedef struct aperiodicCSI_triggerStateSelection {
bool is_scheduled;
uint8_t servingCellId;
uint8_t bwpId;
uint8_t highestTriggerStateSelected;
bool triggerStateSelection[MAX_APERIODIC_TRIGGER_STATES];
} aperiodicCSI_triggerStateSelection_t;
#define MAX_TCI_STATES 128 //38.331
typedef struct pdschTciStatesActDeact {
bool is_scheduled;
uint8_t servingCellId;
uint8_t bwpId;
uint8_t highestTciStateActivated;
bool tciStateActDeact[MAX_TCI_STATES];
uint8_t codepoint[8];
} pdschTciStatesActDeact_t;
typedef struct UE_info {
sp_zp_csirs_t sp_zp_csi_rs;
csi_rs_im_t csi_im;
pdcchStateInd_t pdcch_state_ind;
pucchSpatialRelation_t pucch_spatial_relation;
SPCSIReportingpucch_t SP_CSI_reporting_pucch;
aperiodicCSI_triggerStateSelection_t aperi_CSI_trigger;
pdschTciStatesActDeact_t pdsch_TCI_States_ActDeact;
} NR_UE_mac_ce_ctrl_t;
typedef struct NR_sched_pucch {
int frame;
int ul_slot;
bool sr_flag;
int csi_bits;
bool simultaneous_harqcsi;
uint8_t dai_c;
uint8_t timing_indicator;
uint8_t resource_indicator;
int r_pucch;
int prb_start;
int second_hop_prb;
int nr_of_symb;
int start_symb;
} NR_sched_pucch_t;
/* PUSCH semi-static configuration: as long as the TDA and DCI format remain
* the same over the same uBWP and search space, there is no need to
* recalculate all S/L, MCS table, or DMRS-related parameters over and over
* again. Hence, we store them in this struct for easy reference. */
typedef struct NR_pusch_semi_static_t {
int dci_format;
int time_domain_allocation;
uint8_t num_dmrs_cdm_grps_no_data;
int startSymbolIndex;
int nrOfSymbols;
NR_PUSCH_Config_t *pusch_Config;
uint8_t transform_precoding;
uint8_t mcs_table;
long mapping_type;
NR_DMRS_UplinkConfig_t *NR_DMRS_UplinkConfig;
uint16_t dmrs_config_type;
uint16_t ul_dmrs_symb_pos;
uint8_t num_dmrs_symb;
uint8_t N_PRB_DMRS;
} NR_pusch_semi_static_t;
typedef struct NR_sched_pusch {
int frame;
int slot;
/// RB allocation within active uBWP
uint16_t rbSize;
uint16_t rbStart;
/// MCS
uint8_t mcs;
/// TBS-related info
uint16_t R;
uint8_t Qm;
uint32_t tb_size;
/// UL HARQ PID to use for this UE, or -1 for "any new"
int8_t ul_harq_pid;
/// the Time Domain Allocation used for this transmission. Note that this is
/// only important for retransmissions; otherwise, the TDA in
/// NR_pusch_semi_static_t has precedence
int time_domain_allocation;
} NR_sched_pusch_t;
typedef struct NR_sched_srs {
int frame;
int slot;
bool srs_scheduled;
} NR_sched_srs_t;
/* PDSCH semi-static configuratio: as long as the TDA/DMRS/mcsTable remains the
* same, there is no need to recalculate all S/L or DMRS-related parameters
* over and over again. Hence, we store them in this struct for easy
* reference. */
typedef struct NR_pdsch_semi_static {
int time_domain_allocation;
uint8_t numDmrsCdmGrpsNoData;
uint8_t frontloaded_symb;
int mapping_type;
int startSymbolIndex;
int nrOfSymbols;
uint8_t nrOfLayers;
uint8_t mcsTableIdx;
uint8_t dmrs_ports_id;
uint8_t N_PRB_DMRS;
uint8_t N_DMRS_SLOT;
uint16_t dl_dmrs_symb_pos;
nfapi_nr_dmrs_type_e dmrsConfigType;
} NR_pdsch_semi_static_t;
typedef struct NR_sched_pdsch {
/// RB allocation within active BWP
uint16_t rbSize;
uint16_t rbStart;
/// MCS-related infos
uint8_t mcs;
/// TBS-related info
uint16_t R;
uint8_t Qm;
uint32_t tb_size;
/// DL HARQ PID to use for this UE, or -1 for "any new"
int8_t dl_harq_pid;
// pucch format allocation
uint8_t pucch_allocation;
/// the Time Domain Allocation used for this transmission. Note that this is
/// only important for retransmissions; otherwise, the TDA in
/// NR_pdsch_semi_static_t has precedence
int time_domain_allocation;
} NR_sched_pdsch_t;
typedef struct NR_UE_harq {
bool is_waiting;
uint8_t ndi;
uint8_t round;
uint16_t feedback_frame;
uint16_t feedback_slot;
/* Transport block to be sent using this HARQ process, its size is in
* sched_pdsch */
uint32_t tb[16384];
uint32_t tb_size;
/// sched_pdsch keeps information on MCS etc used for the initial transmission
NR_sched_pdsch_t sched_pdsch;
} NR_UE_harq_t;
//! fixme : need to enhace for the multiple TB CQI report
typedef struct NR_DL_bler_stats {
frame_t last_frame_slot;
float bler;
float rd2_bler;
uint8_t mcs;
uint64_t dlsch_rounds[8];
} NR_DL_bler_stats_t;
//
/*! As per spec 38.214 section 5.2.1.4.2
* - if the UE is configured with the higher layer parameter groupBasedBeamReporting set to 'disabled', the UE shall report in
a single report nrofReportedRS (higher layer configured) different CRI or SSBRI for each report setting.
* - if the UE is configured with the higher layer parameter groupBasedBeamReporting set to 'enabled', the UE shall report in a
single reporting instance two different CRI or SSBRI for each report setting, where CSI-RS and/or SSB
resources can be received simultaneously by the UE either with a single spatial domain receive filter, or with
multiple simultaneous spatial domain receive filter
*/
#define MAX_NR_OF_REPORTED_RS 4
typedef enum NR_CSI_Report_Config {
CSI_Report_PR_cri_ri_li_pmi_cqi_report,
CSI_Report_PR_ssb_cri_report
} NR_CSI_Report_Config_PR;
struct CRI_RI_LI_PMI_CQI {
uint8_t cri;
uint8_t ri;
uint8_t li;
uint8_t pmi_x1;
uint8_t pmi_x2;
uint8_t wb_cqi_1tb;
uint8_t wb_cqi_2tb;
uint8_t cqi_table;
};
typedef struct CRI_SSB_RSRP {
uint8_t nr_ssbri_cri;
uint8_t CRI_SSBRI[MAX_NR_OF_REPORTED_RS];
uint8_t RSRP;
uint8_t diff_RSRP[MAX_NR_OF_REPORTED_RS - 1];
} CRI_SSB_RSRP_t;
struct CSI_Report {
struct CRI_RI_LI_PMI_CQI cri_ri_li_pmi_cqi_report;
struct CRI_SSB_RSRP ssb_cri_report;
};
#define MAX_SR_BITLEN 8
typedef struct {
uint8_t nb_ssbri_cri;
uint8_t cri_ssbri_bitlen;
uint8_t rsrp_bitlen;
uint8_t diff_rsrp_bitlen;
}L1_RSRP_bitlen_t;
typedef struct{
uint8_t ri_restriction;
uint8_t cri_bitlen;
uint8_t ri_bitlen;
uint8_t li_bitlen[8];
uint8_t pmi_x1_bitlen[8];
uint8_t pmi_x2_bitlen[8];
uint8_t cqi_bitlen[8];
} CSI_Meas_bitlen_t;
typedef struct nr_csi_report {
NR_CSI_ReportConfig__reportQuantity_PR reportQuantity_type;
long periodicity;
uint16_t offset;
long ** SSB_Index_list;
long ** CSI_Index_list;
// uint8_t nb_of_nzp_csi_report;
uint8_t nb_of_csi_ssb_report;
L1_RSRP_bitlen_t CSI_report_bitlen;
CSI_Meas_bitlen_t csi_meas_bitlen;
} nr_csi_report_t;
/*! As per the spec 38.212 and table: 6.3.1.1.2-12 in a single UCI sequence we can have multiple CSI_report
the number of CSI_report will depend on number of CSI resource sets that are configured in CSI-ResourceConfig RRC IE
From spec 38.331 from the IE CSI-ResourceConfig for SSB RSRP reporting we can configure only one resource set
From spec 38.214 section 5.2.1.2 For periodic and semi-persistent CSI Resource Settings, the number of CSI-RS Resource Sets configured is limited to S=1
*/
#define MAX_CSI_RESOURCE_SET_IN_CSI_RESOURCE_CONFIG 16
typedef enum {
INACTIVE = 0,
ACTIVE_NOT_SCHED,
ACTIVE_SCHED
} NR_UL_harq_states_t;
typedef struct NR_UE_ul_harq {
bool is_waiting;
uint8_t ndi;
uint8_t round;
uint16_t feedback_slot;
/// sched_pusch keeps information on MCS etc used for the initial transmission
NR_sched_pusch_t sched_pusch;
} NR_UE_ul_harq_t;
/*! \brief scheduling control information set through an API */
#define MAX_CSI_REPORTS 48
typedef struct {
/// the currently active BWP in DL
NR_BWP_Downlink_t *active_bwp;
/// the currently active BWP in UL
NR_BWP_Uplink_t *active_ubwp;
/// CCE index and aggregation, should be coherent with cce_list
NR_SearchSpace_t *search_space;
NR_ControlResourceSet_t *coreset;
NR_sched_pdcch_t sched_pdcch;
/// CCE index and Aggr. Level are shared for PUSCH/PDSCH allocation decisions
/// corresponding to the sched_pusch/sched_pdsch structures below
int cce_index;
uint8_t aggregation_level;
/// maximum aggregation level for UE, can be used to select level
int maxL;
/// PUCCH scheduling information. Array of two: HARQ+SR in the first field,
/// CSI in second. This order is important for nr_acknack_scheduling()!
NR_sched_pucch_t sched_pucch[2];
/// PUSCH semi-static configuration: is not cleared across TTIs
NR_pusch_semi_static_t pusch_semi_static;
/// Sched PUSCH: scheduling decisions, copied into HARQ and cleared every TTI
NR_sched_pusch_t sched_pusch;
/// Sched SRS: scheduling decisions
NR_sched_srs_t sched_srs;
/// uplink bytes that are currently scheduled
int sched_ul_bytes;
/// estimation of the UL buffer size
int estimated_ul_buffer;
/// PHR info: power headroom level (dB)
int ph;
/// PHR info: nominal UE transmit power levels (dBm)
int pcmax;
/// PDSCH semi-static configuration: is not cleared across TTIs
NR_pdsch_semi_static_t pdsch_semi_static;
/// Sched PDSCH: scheduling decisions, copied into HARQ and cleared every TTI
NR_sched_pdsch_t sched_pdsch;
/// For UL synchronization: store last UL scheduling grant
frame_t last_ul_frame;
sub_frame_t last_ul_slot;
/// total amount of data awaiting for this UE
uint32_t num_total_bytes;
uint16_t dl_pdus_total;
/// per-LC status data
mac_rlc_status_resp_t rlc_status[NR_MAX_NUM_LCID];
/// Estimation of HARQ from BLER
NR_DL_bler_stats_t dl_bler_stats;
uint16_t ta_frame;
int16_t ta_update;
bool ta_apply;
uint8_t tpc0;
uint8_t tpc1;
int raw_rssi;
int pusch_snrx10;
int pucch_snrx10;
uint16_t ul_rssi;
uint8_t current_harq_pid;
int pusch_consecutive_dtx_cnt;
int pucch_consecutive_dtx_cnt;
int ul_failure;
struct CSI_Report CSI_report;
bool SR;
bool update_pdsch_ps;
bool update_pusch_ps;
bool set_mcs;
/// information about every HARQ process
NR_UE_harq_t harq_processes[NR_MAX_NB_HARQ_PROCESSES];
/// HARQ processes that are free
NR_list_t available_dl_harq;
/// HARQ processes that await feedback
NR_list_t feedback_dl_harq;
/// HARQ processes that await retransmission
NR_list_t retrans_dl_harq;
/// information about every UL HARQ process
NR_UE_ul_harq_t ul_harq_processes[NR_MAX_NB_HARQ_PROCESSES];
/// UL HARQ processes that are free
NR_list_t available_ul_harq;
/// UL HARQ processes that await feedback
NR_list_t feedback_ul_harq;
/// UL HARQ processes that await retransmission
NR_list_t retrans_ul_harq;
NR_UE_mac_ce_ctrl_t UE_mac_ce_ctrl;// MAC CE related information
/// number of active DL LCs
uint8_t dl_lc_num;
/// order in which DLSCH scheduler should allocate LCs
uint8_t dl_lc_ids[NR_MAX_NUM_LCID];
} NR_UE_sched_ctrl_t;
typedef struct {
boolean_t fiveG_connected;
uicc_t *uicc;
} NRUEcontext_t;
typedef struct {
uint64_t lc_bytes_tx[64];
uint64_t lc_bytes_rx[64];
uint64_t dlsch_rounds[8];
uint64_t dlsch_errors;
uint64_t dlsch_total_bytes;
int dlsch_current_bytes;
uint64_t ulsch_rounds[8];
uint64_t ulsch_errors;
uint32_t ulsch_DTX;
uint64_t ulsch_total_bytes_scheduled;
uint64_t ulsch_total_bytes_rx;
int ulsch_current_bytes;
uint32_t pucch0_DTX;
int cumul_rsrp;
uint8_t num_rsrp_meas;
} NR_mac_stats_t;
/*! \brief UE list used by gNB to order UEs/CC for scheduling*/
#define MAX_CSI_REPORTCONFIG 48
typedef struct {
/// scheduling control info
nr_csi_report_t csi_report_template[MAX_MOBILES_PER_GNB][MAX_CSI_REPORTCONFIG];
NR_UE_sched_ctrl_t UE_sched_ctrl[MAX_MOBILES_PER_GNB];
NR_mac_stats_t mac_stats[MAX_MOBILES_PER_GNB];
NR_list_t list;
int num_UEs;
bool active[MAX_MOBILES_PER_GNB];
rnti_t rnti[MAX_MOBILES_PER_GNB];
NR_CellGroupConfig_t *CellGroup[MAX_MOBILES_PER_GNB];
/// CCE indexing
int m[MAX_MOBILES_PER_GNB];
// UE selected beam index
uint8_t UE_beam_index[MAX_MOBILES_PER_GNB];
bool Msg4_ACKed[MAX_MOBILES_PER_GNB];
} NR_UE_info_t;
typedef void (*nr_pp_impl_dl)(module_id_t mod_id,
frame_t frame,
sub_frame_t slot);
typedef bool (*nr_pp_impl_ul)(module_id_t mod_id,
frame_t frame,
sub_frame_t slot);
/*! \brief top level eNB MAC structure */
typedef struct gNB_MAC_INST_s {
/// Ethernet parameters for northbound midhaul interface
eth_params_t eth_params_n;
/// Ethernet parameters for fronthaul interface
eth_params_t eth_params_s;
/// Module
module_id_t Mod_id;
/// timing advance group
NR_TAG_t *tag;
/// Pointer to IF module instance for PHY
NR_IF_Module_t *if_inst;
pthread_t stats_thread;
/// Pusch target SNR
int pusch_target_snrx10;
/// Pucch target SNR
int pucch_target_snrx10;
/// PUCCH Failure threshold (compared to consecutive PUCCH DTX)
int pucch_failure_thres;
/// PUSCH Failure threshold (compared to consecutive PUSCH DTX)
int pusch_failure_thres;
/// Subcarrier Offset
int ssb_SubcarrierOffset;
/// SIB1 Time domain allocation
int sib1_tda;
int minRXTXTIMEpdsch;
/// Common cell resources
NR_COMMON_channels_t common_channels[NFAPI_CC_MAX];
/// current PDU index (BCH,DLSCH)
uint16_t pdu_index[NFAPI_CC_MAX];
int num_ulprbbl;
uint16_t ulprbbl[275];
/// NFAPI Config Request Structure
nfapi_nr_config_request_scf_t config[NFAPI_CC_MAX];
/// NFAPI DL Config Request Structure
nfapi_nr_dl_tti_request_t DL_req[NFAPI_CC_MAX];
/// a PDCCH PDU groups DCIs per BWP and CORESET. The following structure
/// keeps pointers to PDCCH PDUs within DL_req so that we can easily track
/// PDCCH PDUs per CC/BWP/CORESET
nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_idx[NFAPI_CC_MAX][MAX_NUM_CORESET];
/// NFAPI UL TTI Request Structure, simple pointer into structure
/// UL_tti_req_ahead for current frame/slot
nfapi_nr_ul_tti_request_t *UL_tti_req[NFAPI_CC_MAX];
/// NFAPI UL TTI Request Structure for future TTIs, dynamically allocated
/// because length depends on number of slots
nfapi_nr_ul_tti_request_t *UL_tti_req_ahead[NFAPI_CC_MAX];
/// NFAPI HI/DCI0 Config Request Structure
nfapi_nr_ul_dci_request_t UL_dci_req[NFAPI_CC_MAX];
/// NFAPI DL PDU structure
nfapi_nr_tx_data_request_t TX_req[NFAPI_CC_MAX];
int pdcch_cand[MAX_NUM_CORESET];
NR_UE_info_t UE_info;
/// UL handle
uint32_t ul_handle;
//UE_info_t UE_info;
// MAC function execution peformance profiler
/// processing time of eNB scheduler
time_stats_t eNB_scheduler;
/// processing time of eNB scheduler for SI
time_stats_t schedule_si;
/// processing time of eNB scheduler for Random access
time_stats_t schedule_ra;
/// processing time of eNB ULSCH scheduler
time_stats_t schedule_ulsch;
/// processing time of eNB DCI generation
time_stats_t fill_DLSCH_dci;
/// processing time of eNB MAC preprocessor
time_stats_t schedule_dlsch_preprocessor;
/// processing time of eNB DLSCH scheduler
time_stats_t schedule_dlsch; // include rlc_data_req + MAC header + preprocessor
/// processing time of rlc_data_req
time_stats_t rlc_data_req;
/// processing time of rlc_status_ind
time_stats_t rlc_status_ind;
/// processing time of eNB MCH scheduler
time_stats_t schedule_mch;
/// processing time of eNB ULSCH reception
time_stats_t rx_ulsch_sdu; // include rlc_data_ind
/// processing time of eNB PCH scheduler
time_stats_t schedule_pch;
/// list of allocated beams per period
int16_t *tdd_beam_association;
/// bitmap of DLSCH slots, can hold up to 160 slots
uint64_t dlsch_slot_bitmap[3];
/// Lookup for preferred time domain allocation for BWP, in DL, slots
/// dynamically allocated
int *preferred_dl_tda[MAX_NUM_BWP];
/// bitmap of ULSCH slots, can hold up to 160 slots
uint64_t ulsch_slot_bitmap[3];
/// Lookup for preferred time domain allocation for UL BWP, dynamically
/// allocated. The index refers to the DL slot, and the indicated TDA's k2
/// points to the right UL slot
int *preferred_ul_tda[MAX_NUM_BWP];
/// maximum number of slots before a UE will be scheduled ULSCH automatically
uint32_t ulsch_max_frame_inactivity;
/// DL preprocessor for differentiated scheduling
nr_pp_impl_dl pre_processor_dl;
/// UL preprocessor for differentiated scheduling
nr_pp_impl_ul pre_processor_ul;
NR_UE_sched_ctrl_t *sched_ctrlCommon;
uint16_t cset0_bwp_start;
uint16_t cset0_bwp_size;
NR_Type0_PDCCH_CSS_config_t type0_PDCCH_CSS_config[64];
bool first_MIB;
double dl_bler_target_upper;
double dl_bler_target_lower;
double dl_rd2_bler_threshold;
uint8_t dl_max_mcs;
} gNB_MAC_INST;
#endif /*__LAYER2_NR_MAC_GNB_H__ */
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