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openairinterface5g/openair1/PHY/defs_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 PHY/defs_gNB.h
\brief Top-level defines and structure definitions for gNB
\author Guy De Souza
\date 2018
\version 0.1
\company Eurecom
\email: desouza@eurecom.fr
\note
\warning
*/
#ifndef __PHY_DEFS_GNB__H__
#define __PHY_DEFS_GNB__H__
#include "defs_eNB.h"
#include "defs_nr_common.h"
#include "CODING/nrPolar_tools/nr_polar_pbch_defs.h"
#include "openair2/NR_PHY_INTERFACE/NR_IF_Module.h"
#include "PHY/NR_TRANSPORT/nr_transport_common_proto.h"
#include "PHY/impl_defs_top.h"
#include "PHY/defs_common.h"
#include "PHY/CODING/nrLDPC_extern.h"
#include "PHY/CODING/nrLDPC_decoder/nrLDPC_types.h"
#include "nfapi_nr_interface_scf.h"
#define MAX_NUM_RU_PER_gNB MAX_NUM_RU_PER_eNB
#define MAX_PUCCH0_NID 8
typedef struct {
int nb_id;
int Nid[MAX_PUCCH0_NID];
int lut[MAX_PUCCH0_NID][160][14];
} NR_gNB_PUCCH0_LUT_t;
typedef struct {
uint32_t pbch_a;
uint32_t pbch_a_interleaved;
uint32_t pbch_a_prime;
uint32_t pbch_e[NR_POLAR_PBCH_E_DWORD];
} NR_gNB_PBCH;
typedef struct {
uint8_t ssb_start_symbol;
uint8_t n_hf;
uint8_t Lmax;
uint8_t ssb_index;
int32_t sfn;
} NR_PBCH_parms_t;
typedef enum {
NR_SCH_IDLE,
NR_ACTIVE,
NR_CBA_ACTIVE,
NR_DISABLED
} NR_SCH_status_t;
typedef struct {
/// Nfapi DLSCH PDU
nfapi_nr_dl_tti_pdsch_pdu pdsch_pdu;
/// pointer to pdu from MAC interface (this is "a" in 36.212)
uint8_t *pdu;
/// The payload + CRC size in bits, "B" from 36-212
uint32_t B;
/// Pointer to the payload
uint8_t *b;
/// Pointers to transport block segments
uint8_t **c;
/// Frame where current HARQ round was sent
uint32_t frame;
/// Subframe where current HARQ round was sent
uint32_t subframe;
/// MIMO mode for this DLSCH
MIMO_mode_t mimo_mode;
/// LDPC lifting size
uint32_t Z;
} NR_DL_gNB_HARQ_t;
typedef struct {
int frame;
int slot;
nfapi_nr_dl_tti_pdcch_pdu pdcch_pdu;
} NR_gNB_PDCCH_t;
typedef struct {
uint8_t active;
nfapi_nr_dl_tti_csi_rs_pdu csirs_pdu;
} NR_gNB_CSIRS_t;
typedef struct {
int frame;
int slot;
nfapi_nr_ul_dci_request_pdus_t pdcch_pdu;
} NR_gNB_UL_PDCCH_t;
typedef struct {
int frame;
int dump_frame;
uint16_t rnti;
int round_trials[8];
int total_bytes_tx;
int total_bytes_rx;
int current_Qm;
int current_RI;
int power[NB_ANTENNAS_RX];
int noise_power[NB_ANTENNAS_RX];
int DTX;
int sync_pos;
} NR_gNB_SCH_STATS_t;
typedef struct {
int frame;
uint16_t rnti;
int pucch0_sr_trials;
int pucch0_sr_thres;
int current_pucch0_sr_stat0;
int current_pucch0_sr_stat1;
int pucch0_positive_SR;
int pucch01_trials;
int pucch0_n00;
int pucch0_n01;
int pucch0_thres;
int current_pucch0_stat0;
int current_pucch0_stat1;
int pucch01_DTX;
int pucch02_trials;
int pucch02_DTX;
int pucch2_trials;
int pucch2_DTX;
} NR_gNB_UCI_STATS_t;
typedef struct {
/// Pointers to variables related to DLSCH harq process
NR_DL_gNB_HARQ_t harq_process;
/// TX buffers for UE-spec transmission (antenna layers 1,...,4 after to precoding)
int32_t **txdataF;
/// Modulated symbols buffer
int32_t **mod_symbs;
/// beamforming weights for UE-spec transmission (antenna ports 5 or 7..14), for each codeword, maximum 4 layers?
int32_t ***ue_spec_bf_weights;
/// dl channel estimates (estimated from ul channel estimates)
int32_t **calib_dl_ch_estimates;
/// Allocated RNTI (0 means DLSCH_t is not currently used)
uint16_t rnti;
/// Active flag for baseband transmitter processing
uint8_t active;
/// HARQ process mask, indicates which processes are currently active
uint16_t harq_mask;
/// Indicator of TX activation per subframe. Used during PUCCH detection for ACK/NAK.
uint8_t slot_tx[80];
/// First CCE of last PDSCH scheduling per subframe. Again used during PUCCH detection for ACK/NAK.
uint8_t nCCE[10];
/// Process ID's per subframe. Used to associate received ACKs on PUSCH/PUCCH to DLSCH harq process ids
uint8_t harq_ids[2][80];
/// Window size (in outgoing transport blocks) for fine-grain rate adaptation
uint8_t ra_window_size;
/// First-round error threshold for fine-grain rate adaptation
uint8_t error_threshold;
/// Number of soft channel bits
uint32_t G;
/// Codebook index for this dlsch (0,1,2,3)
uint8_t codebook_index;
/// Maximum number of HARQ processes
uint8_t Mdlharq;
/// Maximum number of HARQ rounds
uint8_t Mlimit;
/// MIMO transmission mode indicator for this sub-frame
uint8_t Kmimo;
/// Nsoft parameter related to UE Category
uint32_t Nsoft;
/// amplitude of PDSCH (compared to RS) in symbols without pilots
int16_t sqrt_rho_a;
/// amplitude of PDSCH (compared to RS) in symbols containing pilots
int16_t sqrt_rho_b;
} NR_gNB_DLSCH_t;
typedef struct {
bool active;
nfapi_nr_dl_tti_ssb_pdu ssb_pdu;
} NR_gNB_SSB_t;
typedef struct {
int frame;
int slot;
nfapi_nr_prach_pdu_t pdu;
} gNB_PRACH_list_t;
#define NUMBER_OF_NR_PRACH_MAX 8
typedef struct {
/// \brief ?.
/// first index: ? [0..1023] (hard coded)
int16_t *prachF;
/// \brief ?.
/// second index: rx antenna [0..63] (hard coded) \note Hard coded array size indexed by \c nb_antennas_rx.
/// third index: frequency-domain sample [0..ofdm_symbol_size*12[
int16_t **rxsigF;
/// \brief local buffer to compute prach_ifft
int32_t *prach_ifft;
gNB_PRACH_list_t list[NUMBER_OF_NR_PRACH_MAX];
} NR_gNB_PRACH;
typedef struct {
/// Nfapi ULSCH PDU
nfapi_nr_pusch_pdu_t ulsch_pdu;
/// Frame where current HARQ round was sent
uint32_t frame;
/// Slot where current HARQ round was sent
uint32_t slot;
/// Index of current HARQ round for this DLSCH
uint8_t round;
uint8_t ndi;
bool new_rx;
/// Last TPC command
uint8_t TPC;
/// MIMO mode for this DLSCH
MIMO_mode_t mimo_mode;
/// Flag indicating that this ULSCH has been allocated by a DCI (otherwise it is a retransmission based on PHICH NAK)
uint8_t dci_alloc;
/// Flag indicating that this ULSCH has been allocated by a RAR (otherwise it is a retransmission based on PHICH NAK or DCI)
uint8_t rar_alloc;
/// Status Flag indicating for this ULSCH (idle,active,disabled)
NR_SCH_status_t status;
/// Subframe scheduling indicator (i.e. Transmission opportunity indicator)
uint8_t subframe_scheduling_flag;
/// Subframe cba scheduling indicator (i.e. CBA Transmission opportunity indicator)
uint8_t subframe_cba_scheduling_flag;
/// PHICH active flag
uint8_t phich_active;
/// PHICH ACK
uint8_t phich_ACK;
/// First Allocated RB - previous scheduling. This is needed for PHICH generation which is done after a new scheduling
uint16_t previous_first_rb;
/// Flag to indicate that the UL configuration has been handled. Used to remove a stale ULSCH when frame wraps around
uint8_t handled;
/// Flag to indicate that this ULSCH is for calibration information sent from UE (i.e. no MAC SDU to pass up)
// int calibration_flag;
/// delta_TF for power control
int32_t delta_TF;
/////////////////////// ulsch decoding ///////////////////////
/// Transport block size (This is A from 38.212 V15.4.0 section 5.1)
uint32_t TBS;
/// Pointer to the payload (38.212 V15.4.0 section 5.1)
uint8_t *b;
/// The payload + CRC (24 bits) in bits (38.212 V15.4.0 section 5.1)
uint32_t B;
/// Pointers to code blocks after code block segmentation and CRC attachment (38.212 V15.4.0 section 5.2.2)
uint8_t *c[MAX_NUM_NR_ULSCH_SEGMENTS];
/// Number of bits in each code block (38.212 V15.4.0 section 5.2.2)
uint32_t K;
/// Number of "Filler" bits added in the code block segmentation (38.212 V15.4.0 section 5.2.2)
uint32_t F;
/// Number of code blocks after code block segmentation (38.212 V15.4.0 section 5.2.2)
uint32_t C;
/// Pointers to code blocks after LDPC coding (38.212 V15.4.0 section 5.3.2)
int16_t *d[MAX_NUM_NR_ULSCH_SEGMENTS];
/// LDPC lifting size (38.212 V15.4.0 table 5.3.2-1)
uint32_t Z;
/// code blocks after bit selection in rate matching for LDPC code (38.212 V15.4.0 section 5.4.2.1)
int16_t e[MAX_NUM_NR_ULSCH_SEGMENTS][3*8448];
/// Number of bits in each code block after rate matching for LDPC code (38.212 V15.4.0 section 5.4.2.1)
uint32_t E;
/// Number of segments processed so far
uint32_t processedSegments;
//////////////////////////////////////////////////////////////
/////////////////////////// DMRS /////////////////////////////
/// n_DMRS for cyclic shift of DMRS (36.213 Table 9.1.2-2)
uint8_t n_DMRS;
/// n_DMRS 2 for cyclic shift of DMRS (36.211 Table 5.5.1.1.-1)
uint8_t n_DMRS2;
/// n_DMRS for cyclic shift of DMRS (36.213 Table 9.1.2-2) - previous scheduling
/// This is needed for PHICH generation which
/// is done after a new scheduling
uint8_t previous_n_DMRS;
//////////////////////////////////////////////////////////////
///////////////////// UCI multiplexing ///////////////////////
/// CQI CRC status
uint8_t cqi_crc_status;
/// Pointer to CQI data
uint8_t o[MAX_CQI_BYTES];
/// Format of CQI data
UCI_format_t uci_format;
/// Length of CQI data under RI=1 assumption(bits)
uint8_t Or1;
/// Length of CQI data under RI=2 assumption(bits)
uint8_t Or2;
/// Rank information
uint8_t o_RI[2];
/// Length of rank information (bits)
uint8_t O_RI;
/// Pointer to ACK
uint8_t o_ACK[4];
/// Length of ACK information (bits)
uint8_t O_ACK;
/// The value of DAI in DCI format 0
uint8_t V_UL_DAI;
/// "q" sequences for CQI/PMI (for definition see 36-212 V8.6 2009-03, p.27)
int8_t q[MAX_CQI_PAYLOAD];
/// number of coded CQI bits after interleaving
uint8_t o_RCC;
/// coded and interleaved CQI bits
int8_t o_w[(MAX_CQI_BITS+8)*3];
/// coded CQI bits
int8_t o_d[96+((MAX_CQI_BITS+8)*3)];
/// coded ACK bits
int16_t q_ACK[MAX_ACK_PAYLOAD];
/// coded RI bits
int16_t q_RI[MAX_RI_PAYLOAD];
/// Temporary h sequence to flag PUSCH_x/PUSCH_y symbols which are not scrambled
uint8_t h[MAX_NUM_CHANNEL_BITS];
/// soft bits for each received segment ("w"-sequence)(for definition see 36-212 V8.6 2009-03, p.15)
int16_t *w[MAX_NUM_NR_ULSCH_SEGMENTS];
//////////////////////////////////////////////////////////////
} NR_UL_gNB_HARQ_t;
typedef struct {
/// Pointers to 16 HARQ processes for the ULSCH
NR_UL_gNB_HARQ_t *harq_processes[NR_MAX_ULSCH_HARQ_PROCESSES];
/// Current HARQ process id
int harq_process_id[NR_MAX_SLOTS_PER_FRAME];
/// HARQ process mask, indicates which processes are currently active
uint16_t harq_mask;
/// ACK/NAK Bundling flag
uint8_t bundling;
/// beta_offset_cqi times 8
uint16_t beta_offset_cqi_times8;
/// beta_offset_ri times 8
uint16_t beta_offset_ri_times8;
/// beta_offset_harqack times 8
uint16_t beta_offset_harqack_times8;
/// Flag to indicate that gNB awaits UE Msg3
uint8_t Msg3_active;
/// Flag to indicate that gNB should decode UE Msg3
uint8_t Msg3_flag;
/// Subframe for Msg3
uint8_t Msg3_subframe;
/// Frame for Msg3
uint32_t Msg3_frame;
/// Allocated RNTI for this ULSCH
uint16_t rnti;
/// RNTI type
uint8_t rnti_type;
/// cyclic shift for DM RS
uint8_t cyclicShift;
/// for cooperative communication
uint8_t cooperation_flag;
/// Maximum number of HARQ rounds
uint8_t Mlimit;
/// Maximum number of LDPC iterations
uint8_t max_ldpc_iterations;
/// number of iterations used in last LDPC decoding
uint8_t last_iteration_cnt;
} NR_gNB_ULSCH_t;
typedef struct {
uint8_t active;
/// Frame where current PUCCH pdu was sent
uint32_t frame;
/// Slot where current PUCCH pdu was sent
uint32_t slot;
/// ULSCH PDU
nfapi_nr_pucch_pdu_t pucch_pdu;
} NR_gNB_PUCCH_t;
typedef struct {
uint8_t active;
/// Frame where current SRS pdu was received
uint32_t frame;
/// Slot where current SRS pdu was received
uint32_t slot;
/// ULSCH PDU
nfapi_nr_srs_pdu_t srs_pdu;
} NR_gNB_SRS_t;
typedef struct {
/// \brief Pointers (dynamic) to the received data in the time domain.
/// - first index: rx antenna [0..nb_antennas_rx[
/// - second index: ? [0..2*ofdm_symbol_size*frame_parms->symbols_per_tti[
int32_t **rxdata;
/// \brief Pointers (dynamic) to the received data in the frequency domain.
/// - first index: rx antenna [0..nb_antennas_rx[
/// - second index: ? [0..2*ofdm_symbol_size*frame_parms->symbols_per_tti[
int32_t **rxdataF;
/// \brief holds the transmit data in the frequency domain.
/// For IFFT_FPGA this points to the same memory as PHY_vars->rx_vars[a].RX_DMA_BUFFER. //?
/// - first index: eNB id [0..2] (hard coded)
/// - second index: tx antenna [0..14[ where 14 is the total supported antenna ports.
/// - third index: sample [0..samples_per_frame_woCP]
int32_t **txdataF;
/// \brief Anaglogue beam ID for each OFDM symbol (used when beamforming not done in RU)
/// - first index: antenna port
/// - second index: beam_id [0.. symbols_per_frame[
uint8_t **beam_id;
int32_t *debugBuff;
int32_t debugBuff_sample_offset;
} NR_gNB_COMMON;
typedef struct {
/// \brief Holds the received data in the frequency domain for the allocated RBs in repeated format.
/// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index: ? [0..2*ofdm_symbol_size[
int32_t **rxdataF_ext;
/// \brief Holds the received data in the frequency domain for the allocated RBs in normal format.
/// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index (definition from phy_init_lte_eNB()): ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
int32_t **rxdataF_ext2;
/// \brief Hold the channel estimates in time domain based on DRS.
/// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index: ? [0..4*ofdm_symbol_size[
int32_t **ul_ch_estimates_time;
/// \brief Hold the channel estimates in frequency domain based on DRS.
/// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
int32_t **ul_ch_estimates;
/// \brief Uplink channel estimates extracted in PRBS.
/// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
/// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
int32_t **ul_ch_estimates_ext;
/// \brief Hold the PTRS phase estimates in frequency domain.
/// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
int32_t **ul_ch_ptrs_estimates;
/// \brief Uplink phase estimates extracted in PRBS.
/// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
/// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
int32_t **ul_ch_ptrs_estimates_ext;
/// \brief Holds the compensated signal.
/// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
int32_t **rxdataF_comp;
/// \brief Magnitude of the UL channel estimates. Used for 2nd-bit level thresholds in LLR computation
/// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
int32_t **ul_ch_mag;
/// \brief Magnitude of the UL channel estimates scaled for 3rd bit level thresholds in LLR computation
/// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
int32_t **ul_ch_magb;
/// \brief Cross-correlation of two UE signals.
/// - first index: rx antenna [0..nb_antennas_rx[
/// - second index: symbol [0..]
int32_t **rho;
/// \f$\log_2(\max|H_i|^2)\f$
int16_t log2_maxh;
/// \brief Magnitude of Uplink Channel first layer (16QAM level/First 64QAM level).
/// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
/// - second index: ? [0..168*N_RB_UL[
int32_t **ul_ch_mag0;
/// \brief Magnitude of Uplink Channel second layer (16QAM level/First 64QAM level).
/// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
/// - second index: ? [0..168*N_RB_UL[
int32_t **ul_ch_mag1[8][8];
/// \brief Magnitude of Uplink Channel, first layer (2nd 64QAM level).
/// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
/// - second index: ? [0..168*N_RB_UL[
int32_t **ul_ch_magb0;
/// \brief Magnitude of Uplink Channel second layer (2nd 64QAM level).
/// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
/// - second index: ? [0..168*N_RB_UL[
int32_t **ul_ch_magb1[8][8];
/// measured RX power based on DRS
int ulsch_power[8];
/// total signal over antennas
int ulsch_power_tot;
/// measured RX noise power
int ulsch_noise_power[8];
/// total noise over antennas
int ulsch_noise_power_tot;
/// \brief llr values.
/// - first index: ? [0..1179743] (hard coded)
int16_t *llr;
/// DMRS symbol index, to be updated every DMRS symbol within a slot.
uint8_t dmrs_symbol;
// PTRS symbol index, to be updated every PTRS symbol within a slot.
uint8_t ptrs_symbol_index;
/// bit mask of PT-RS ofdm symbol indicies
uint16_t ptrs_symbols;
// PTRS subcarriers per OFDM symbol
int32_t ptrs_re_per_slot;
/// \brief Estimated phase error based upon PTRS on each symbol .
/// - first index: ? [0..7] Number of Antenna
/// - second index: ? [0...14] smybol per slot
int32_t **ptrs_phase_per_slot;
/// \brief Total RE count after DMRS/PTRS RE's are extracted from respective symbol.
/// - first index: ? [0...14] smybol per slot
int16_t *ul_valid_re_per_slot;
/// flag to verify if channel level computation is done
uint8_t cl_done;
/// flag to indicate DTX on reception
int DTX;
} NR_gNB_PUSCH;
/// Context data structure for RX/TX portion of slot processing
typedef struct {
/// Component Carrier index
uint8_t CC_id;
/// timestamp transmitted to HW
openair0_timestamp timestamp_tx;
/// slot to act upon for transmission
int slot_tx;
/// slot to act upon for reception
int slot_rx;
/// frame to act upon for transmission
int frame_tx;
/// frame to act upon for reception
int frame_rx;
/// \brief Instance count for RXn-TXnp4 processing thread.
/// \internal This variable is protected by \ref mutex_rxtx.
int instance_cnt;
/// pthread structure for RXn-TXnp4 processing thread
pthread_t pthread;
/// pthread attributes for RXn-TXnp4 processing thread
pthread_attr_t attr;
/// condition variable for tx processing thread
pthread_cond_t cond;
/// mutex for RXn-TXnp4 processing thread
pthread_mutex_t mutex;
/// scheduling parameters for RXn-TXnp4 thread
struct sched_param sched_param_rxtx;
/// \internal This variable is protected by \ref mutex_RUs_tx.
int instance_cnt_RUs;
/// condition variable for tx processing thread
pthread_cond_t cond_RUs;
/// mutex for L1 RXTX processing thread
pthread_mutex_t mutex_RUs;
/// mutex for L1 TX FH synchronization
pthread_mutex_t mutex_RUs_tx;
} gNB_L1_rxtx_proc_t;
/// Context data structure for eNB slot processing
typedef struct gNB_L1_proc_t_s {
/// Component Carrier index
uint8_t CC_id;
/// thread index
int thread_index;
/// timestamp received from HW
openair0_timestamp timestamp_rx;
/// timestamp to send to "slave rru"
openair0_timestamp timestamp_tx;
/// slot to act upon for reception
int slot_rx;
/// slot to act upon for PRACH
int slot_prach;
/// frame to act upon for reception
int frame_rx;
/// frame to act upon for transmission
int frame_tx;
/// frame to act upon for PRACH
int frame_prach;
/// \internal This variable is protected by \ref mutex_td.
int instance_cnt_td;
/// \internal This variable is protected by \ref mutex_te.
int instance_cnt_te;
/// \internal This variable is protected by \ref mutex_prach.
int instance_cnt_prach;
// instance count for over-the-air gNB synchronization
int instance_cnt_synch;
/// \internal This variable is protected by \ref mutex_asynch_rxtx.
int instance_cnt_asynch_rxtx;
/// pthread structure for eNB single processing thread
pthread_t pthread_single;
/// pthread structure for asychronous RX/TX processing thread
pthread_t pthread_asynch_rxtx;
/// pthread structure for dumping L1 stats
pthread_t L1_stats_thread;
/// pthread structure for printing time meas
pthread_t process_stats_thread;
/// pthread structure for reordering L1 tx thread messages
pthread_t pthread_tx_reorder;
/// flag to indicate first RX acquisition
int first_rx;
/// flag to indicate first TX transmission
int first_tx;
/// pthread attributes for single gNB processing thread
pthread_attr_t attr_single;
/// pthread attributes for prach processing thread
pthread_attr_t attr_prach;
/// pthread attributes for asynchronous RX thread
pthread_attr_t attr_asynch_rxtx;
/// scheduling parameters for parallel turbo-decoder thread
struct sched_param sched_param_td;
/// scheduling parameters for parallel turbo-encoder thread
struct sched_param sched_param_te;
/// scheduling parameters for single eNB thread
struct sched_param sched_param_single;
/// scheduling parameters for prach thread
struct sched_param sched_param_prach;
/// scheduling parameters for asynch_rxtx thread
struct sched_param sched_param_asynch_rxtx;
pthread_cond_t cond_prach;
/// condition variable for asynch RX/TX thread
pthread_cond_t cond_asynch_rxtx;
/// mutex for parallel turbo-decoder thread
pthread_mutex_t mutex_td;
/// mutex for parallel turbo-encoder thread
pthread_mutex_t mutex_te;
/// mutex for PRACH thread
pthread_mutex_t mutex_prach;
/// mutex for asynch RX/TX thread
pthread_mutex_t mutex_asynch_rxtx;
/// mutex for RU access to eNB processing (PDSCH/PUSCH)
pthread_mutex_t mutex_RU;
/// mutex for RU_tx access to eNB_tx processing (PDSCH/PUSCH)
pthread_mutex_t mutex_RU_tx;
/// mutex for RU access to eNB processing (PRACH)
pthread_mutex_t mutex_RU_PRACH;
/// mutex for RU access to eNB processing (PRACH BR)
pthread_mutex_t mutex_RU_PRACH_br;
/// mask for RUs serving eNB (PDSCH/PUSCH)
int RU_mask, RU_mask_tx;
/// mask for RUs serving eNB (PRACH)
int RU_mask_prach;
/// set of scheduling variables RXn-TXnp4 threads
gNB_L1_rxtx_proc_t L1_proc, L1_proc_tx;
} gNB_L1_proc_t;
typedef struct {
// common measurements
//! estimated noise power (linear)
unsigned int n0_power[MAX_NUM_RU_PER_gNB];
//! estimated noise power (dB)
unsigned int n0_power_dB[MAX_NUM_RU_PER_gNB];
//! total estimated noise power (linear)
unsigned int n0_power_tot;
//! estimated avg noise power (dB)
unsigned int n0_power_tot_dB;
//! estimated avg noise power (dB)
int n0_power_tot_dBm;
//! estimated avg noise power per RB per RX ant (lin)
unsigned int n0_subband_power[MAX_NUM_RU_PER_gNB][275];
//! estimated avg noise power per RB per RX ant (dB)
unsigned int n0_subband_power_dB[MAX_NUM_RU_PER_gNB][275];
//! estimated avg subband noise power (dB)
unsigned int n0_subband_power_avg_dB;
//! estimated avg subband noise power per antenna (dB)
unsigned int n0_subband_power_avg_perANT_dB[NB_ANTENNAS_RX];
//! estimated avg noise power per RB (dB)
int n0_subband_power_tot_dB[275];
//! estimated avg noise power per RB (dBm)
int n0_subband_power_tot_dBm[275];
// gNB measurements (per user)
//! estimated received spatial signal power (linear)
unsigned int rx_spatial_power[NUMBER_OF_NR_ULSCH_MAX][NB_ANTENNAS_TX][NB_ANTENNAS_RX];
//! estimated received spatial signal power (dB)
unsigned int rx_spatial_power_dB[NUMBER_OF_NR_ULSCH_MAX][NB_ANTENNAS_TX][NB_ANTENNAS_RX];
//! estimated rssi (dBm)
int rx_rssi_dBm[NUMBER_OF_NR_ULSCH_MAX];
//! estimated correlation (wideband linear) between spatial channels (computed in dlsch_demodulation)
int rx_correlation[NUMBER_OF_NR_ULSCH_MAX][2];
//! estimated correlation (wideband dB) between spatial channels (computed in dlsch_demodulation)
int rx_correlation_dB[NUMBER_OF_NR_ULSCH_MAX][2];
/// Wideband CQI (= SINR)
int wideband_cqi[NUMBER_OF_NR_ULSCH_MAX][MAX_NUM_RU_PER_gNB];
/// Wideband CQI in dB (= SINR dB)
int wideband_cqi_dB[NUMBER_OF_NR_ULSCH_MAX][MAX_NUM_RU_PER_gNB];
/// Wideband CQI (sum of all RX antennas, in dB)
char wideband_cqi_tot[NUMBER_OF_NR_ULSCH_MAX];
/// Subband CQI per RX antenna and RB (= SINR)
int subband_cqi[NUMBER_OF_NR_ULSCH_MAX][MAX_NUM_RU_PER_gNB][275];
/// Total Subband CQI and RB (= SINR)
int subband_cqi_tot[NUMBER_OF_NR_ULSCH_MAX][275];
/// Subband CQI in dB and RB (= SINR dB)
int subband_cqi_dB[NUMBER_OF_NR_ULSCH_MAX][MAX_NUM_RU_PER_gNB][275];
/// Total Subband CQI and RB
int subband_cqi_tot_dB[NUMBER_OF_NR_ULSCH_MAX][275];
/// PRACH background noise level
int prach_I0;
} PHY_MEASUREMENTS_gNB;
#define MAX_NUM_NR_PRACH_PREAMBLES 64
#define MAX_NUM_NR_RX_RACH_PDUS 4
#define MAX_NUM_NR_RX_PRACH_PREAMBLES 4
#define MAX_UL_PDUS_PER_SLOT 8
#define MAX_NUM_NR_SRS_PDUS 8
#define MAX_NUM_NR_UCI_PDUS 8
/// Top-level PHY Data Structure for gNB
typedef struct PHY_VARS_gNB_s {
/// Module ID indicator for this instance
module_id_t Mod_id;
uint8_t CC_id;
uint8_t configured;
gNB_L1_proc_t proc;
int single_thread_flag;
int abstraction_flag;
int num_RU;
RU_t *RU_list[MAX_NUM_RU_PER_gNB];
/// Ethernet parameters for northbound midhaul interface
eth_params_t eth_params_n;
/// Ethernet parameters for fronthaul interface
eth_params_t eth_params;
int rx_total_gain_dB;
int (*nr_start_if)(struct RU_t_s *ru, struct PHY_VARS_gNB_s *gNB);
uint8_t local_flag;
nfapi_nr_config_request_scf_t gNB_config;
NR_DL_FRAME_PARMS frame_parms;
PHY_MEASUREMENTS_gNB measurements;
NR_IF_Module_t *if_inst;
NR_UL_IND_t UL_INFO;
pthread_mutex_t UL_INFO_mutex;
/// NFAPI RX ULSCH information
nfapi_nr_rx_data_pdu_t rx_pdu_list[MAX_UL_PDUS_PER_SLOT];
/// NFAPI RX ULSCH CRC information
nfapi_nr_crc_t crc_pdu_list[MAX_UL_PDUS_PER_SLOT];
/// NFAPI SRS information
nfapi_nr_srs_indication_pdu_t srs_pdu_list[MAX_NUM_NR_SRS_PDUS];
/// NFAPI UCI information
nfapi_nr_uci_t uci_pdu_list[MAX_NUM_NR_UCI_PDUS];
/// NFAPI PRACH information
nfapi_nr_prach_indication_pdu_t prach_pdu_indication_list[MAX_NUM_NR_RX_RACH_PDUS];
/// NFAPI PRACH information
nfapi_nr_prach_indication_preamble_t preamble_list[MAX_NUM_NR_RX_PRACH_PREAMBLES];
//Sched_Rsp_t Sched_INFO;
nfapi_nr_ul_tti_request_t UL_tti_req;
nfapi_nr_uci_indication_t uci_indication;
// nfapi_nr_dl_tti_pdcch_pdu *pdcch_pdu;
// nfapi_nr_ul_dci_request_pdus_t *ul_dci_pdu;
uint16_t num_pdsch_rnti[80];
NR_gNB_PBCH pbch;
NR_gNB_COMMON common_vars;
NR_gNB_PRACH prach_vars;
NR_gNB_PUSCH *pusch_vars[NUMBER_OF_NR_ULSCH_MAX];
NR_gNB_PUCCH_t *pucch[NUMBER_OF_NR_PUCCH_MAX];
NR_gNB_SRS_t *srs[NUMBER_OF_NR_SRS_MAX];
NR_gNB_PDCCH_t pdcch_pdu[NUMBER_OF_NR_PDCCH_MAX];
NR_gNB_UL_PDCCH_t ul_pdcch_pdu[NUMBER_OF_NR_PDCCH_MAX];
NR_gNB_DLSCH_t *dlsch[NUMBER_OF_NR_DLSCH_MAX][2]; // Nusers times two spatial streams
NR_gNB_ULSCH_t *ulsch[NUMBER_OF_NR_ULSCH_MAX]; // [Nusers times]
NR_gNB_DLSCH_t *dlsch_SI,*dlsch_ra,*dlsch_p;
NR_gNB_DLSCH_t *dlsch_PCH;
/// statistics for DLSCH measurement collection
NR_gNB_SCH_STATS_t dlsch_stats[NUMBER_OF_NR_SCH_STATS_MAX];
/// statistics for ULSCH measurement collection
NR_gNB_SCH_STATS_t ulsch_stats[NUMBER_OF_NR_SCH_STATS_MAX];
NR_gNB_UCI_STATS_t uci_stats[NUMBER_OF_NR_UCI_STATS_MAX];
t_nrPolar_params **polarParams;
/// SRS variables
nr_srs_info_t *nr_srs_info[NUMBER_OF_NR_SRS_MAX];
uint8_t pbch_configured;
char gNB_generate_rar;
// PUCCH0 Look-up table for cyclic-shifts
NR_gNB_PUCCH0_LUT_t pucch0_lut;
/// PBCH DMRS sequence
uint32_t nr_gold_pbch_dmrs[2][64][NR_PBCH_DMRS_LENGTH_DWORD];
/// PBCH interleaver
uint8_t nr_pbch_interleaver[NR_POLAR_PBCH_PAYLOAD_BITS];
/// PDCCH DMRS sequence
uint32_t ***nr_gold_pdcch_dmrs;
/// PDSCH DMRS sequence
uint32_t ****nr_gold_pdsch_dmrs;
/// PDSCH codebook I precoding LUTs
/// first dimension: Rank number [0,...,noOfLayers-1[
/// second dimension: PMI [0,...,CodeSize-1[
/// third dimension: [i_rows*noOfLayers+j_col], i_rows=0,...pdsch_AntennaPorts-1 and j_col=0,...,noOfLayers-1
int32_t ***nr_mimo_precoding_matrix;
int pmiq_size[NR_MAX_NB_LAYERS];
/// PUSCH DMRS
uint32_t ****nr_gold_pusch_dmrs;
// Mask of occupied RBs, per symbol and PRB
uint32_t rb_mask_ul[14][9];
/// CSI RS sequence
uint32_t ***nr_gold_csi_rs;
/// Indicator set to 0 after first SR
uint8_t first_sr[NUMBER_OF_NR_SR_MAX];
/// PRACH root sequence
uint32_t X_u[64][839];
uint32_t max_peak_val;
/// OFDM symbol offset divisor for UL
uint32_t ofdm_offset_divisor;
/// \brief sinr for all subcarriers of the current link (used only for abstraction).
/// first index: ? [0..N_RB_DL*12[
double *sinr_dB;
/// N0 (used for abstraction)
double N0;
unsigned char first_run_I0_measurements;
unsigned char is_secondary_gNB; // primary by default
unsigned char is_init_sync; /// Flag to tell if initial synchronization is performed. This affects how often the secondary eNB will listen to the PSS from the primary system.
unsigned char has_valid_precoder; /// Flag to tell if secondary eNB has channel estimates to create NULL-beams from, and this B/F vector is created.
unsigned char PgNB_id; /// id of Primary eNB
/// hold the precoder for NULL beam to the primary user
int **dl_precoder_SgNB[3];
char log2_maxp; /// holds the maximum channel/precoder coefficient
int prb_interpolation;
/// if ==0 enables phy only test mode
int mac_enabled;
/// counter to average prach energh over first 100 prach opportunities
int prach_energy_counter;
int csi_gold_init;
int pdcch_gold_init;
int pdsch_gold_init[2];
int pusch_gold_init[2];
int ap_N1;
int ap_N2;
int ap_XP;
int pucch0_thres;
int pusch_thres;
int prach_thres;
uint64_t bad_pucch;
int num_ulprbbl;
int ulprbbl[275];
/*
time_stats_t phy_proc;
*/
time_stats_t phy_proc_tx;
time_stats_t phy_proc_rx;
time_stats_t rx_prach;
/*
time_stats_t ofdm_mod_stats;
*/
time_stats_t dlsch_encoding_stats;
time_stats_t dlsch_modulation_stats;
time_stats_t dlsch_scrambling_stats;
time_stats_t dlsch_resource_mapping_stats;
time_stats_t dlsch_layer_mapping_stats;
time_stats_t dlsch_precoding_stats;
time_stats_t tinput;
time_stats_t tprep;
time_stats_t tparity;
time_stats_t toutput;
time_stats_t dlsch_rate_matching_stats;
time_stats_t dlsch_interleaving_stats;
time_stats_t dlsch_segmentation_stats;
time_stats_t rx_pusch_stats;
time_stats_t ul_indication_stats;
time_stats_t schedule_response_stats;
time_stats_t ulsch_decoding_stats;
time_stats_t ulsch_rate_unmatching_stats;
time_stats_t ulsch_ldpc_decoding_stats;
time_stats_t ulsch_deinterleaving_stats;
time_stats_t ulsch_unscrambling_stats;
time_stats_t ulsch_channel_estimation_stats;
time_stats_t ulsch_ptrs_processing_stats;
time_stats_t ulsch_channel_compensation_stats;
time_stats_t ulsch_rbs_extraction_stats;
time_stats_t ulsch_mrc_stats;
time_stats_t ulsch_llr_stats;
/*
time_stats_t rx_dft_stats;
time_stats_t ulsch_freq_offset_estimation_stats;
*/
notifiedFIFO_t *respDecode;
notifiedFIFO_t *resp_L1;
notifiedFIFO_t *L1_tx_free;
notifiedFIFO_t *L1_tx_filled;
notifiedFIFO_t *L1_tx_out;
notifiedFIFO_t *resp_RU_tx;
tpool_t *threadPool;
int nbDecode;
uint8_t thread_pool_size;
int number_of_nr_dlsch_max;
int number_of_nr_ulsch_max;
void * scopeData;
} PHY_VARS_gNB;
typedef struct LDPCDecode_s {
PHY_VARS_gNB *gNB;
NR_UL_gNB_HARQ_t *ulsch_harq;
t_nrLDPC_dec_params decoderParms;
NR_gNB_ULSCH_t *ulsch;
short* ulsch_llr;
int ulsch_id;
int harq_pid;
int rv_index;
int A;
int E;
int Kc;
int Qm;
int Kr_bytes;
int nbSegments;
int segment_r;
int r_offset;
int offset;
int decodeIterations;
uint32_t tbslbrm;
} ldpcDecode_t;
struct ldpcReqId {
uint16_t rnti;
uint16_t frame;
uint8_t subframe;
uint8_t codeblock;
uint16_t spare;
} __attribute__((packed));
union ldpcReqUnion {
struct ldpcReqId s;
uint64_t p;
};
typedef struct processingData_L1 {
int frame_rx;
int frame_tx;
int slot_rx;
int slot_tx;
openair0_timestamp timestamp_tx;
PHY_VARS_gNB *gNB;
} processingData_L1_t;
typedef enum {
FILLED,
FILLING,
NOT_FILLED
} msgStatus_t;
typedef struct processingData_L1tx {
int frame;
int slot;
openair0_timestamp timestamp_tx;
PHY_VARS_gNB *gNB;
nfapi_nr_dl_tti_pdcch_pdu pdcch_pdu[NFAPI_NR_MAX_NB_CORESETS];
nfapi_nr_ul_dci_request_pdus_t ul_pdcch_pdu[NFAPI_NR_MAX_NB_CORESETS];
NR_gNB_CSIRS_t csirs_pdu[NUMBER_OF_NR_CSIRS_MAX];
NR_gNB_DLSCH_t *dlsch[NUMBER_OF_NR_DLSCH_MAX][2];
NR_gNB_SSB_t ssb[64];
uint16_t num_pdsch_slot;
int num_dl_pdcch;
int num_ul_pdcch;
} processingData_L1tx_t;
#endif
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