Как собрать LTE-модем на базе SDR

##################################################################### #                   srsUE configuration file #####################################################################  ##################################################################### # RF configuration # # freq_offset: Uplink and Downlink optional frequency offset (in Hz) # tx_gain: Transmit gain (dB). # rx_gain: Optional receive gain (dB). If disabled, AGC if enabled # srate: Optional fixed sampling rate (Hz), corresponding to cell bandwidth. Must be set for 5G-SA. # # nof_antennas:       Number of antennas per carrier (all carriers have the same number of antennas) # device_name:        Device driver family. Supported options: "auto" (uses first found), "UHD" or "bladeRF" # device_args:        Arguments for the device driver. Options are "auto" or any string. #                     Default for UHD: "recv_frame_size=9232,send_frame_size=9232" #                     Default for bladeRF: "" # device_args_2:      Arguments for the RF device driver 2. # device_args_3:      Arguments for the RF device driver 3. # time_adv_nsamples:  Transmission time advance (in number of samples) to compensate for RF delay #                     from antenna to timestamp insertion. #                     Default "auto". B210 USRP: 100 samples, bladeRF: 27. # continuous_tx:      Transmit samples continuously to the radio or on bursts (auto/yes/no). #                     Default is auto (yes for UHD, no for rest) ##################################################################### [rf] freq_offset = 0 tx_gain = 80 rx_gain = 40 srate = 23.04e6  #nof_antennas = 1  # For best performance in 2x2 MIMO and >= 15 MHz use the following device_args settings: #     USRP B210: num_recv_frames=64,num_send_frames=64  # For best performance when BW<5 MHz (25 PRB), use the following device_args settings: #     USRP B210: send_frame_size=512,recv_frame_size=512  #device_args = auto #time_adv_nsamples = auto #continuous_tx     = auto  # Example for ZMQ-based operation with TCP transport for I/Q samples #device_name = zmq #device_args = tx_port=tcp://*:2001,rx_port=tcp://localhost:2000,id=ue,base_srate=23.04e6  ##################################################################### # EUTRA RAT configuration # # dl_earfcn:   Downlink EARFCN list. # # Optional parameters: # dl_freq:            Override DL frequency corresponding to dl_earfcn # ul_freq:            Override UL frequency corresponding to dl_earfcn # nof_carriers:       Number of carriers ##################################################################### [rat.eutra] dl_earfcn = 3250 #nof_carriers = 1  ##################################################################### # NR RAT configuration # # Optional parameters: # bands:           List of support NR bands seperated by a comma (default 78) # nof_carriers:    Number of NR carriers (must be at least 1 for NR support) ##################################################################### [rat.nr] # bands = 78 # nof_carriers = 0  ##################################################################### # Packet capture configuration # # Packet capture is supported at the MAC, MAC_NR, and NAS layer. # MAC-layer packets are captured to file a the compact format decoded # by the Wireshark. For decoding, use the UDP dissector and the UDP # heuristic dissection. Edit the preferences (Edit > Preferences > # Protocols > DLT_USER) for DLT_USER to add an entry for DLT=149 with # Protocol=udp. Further, enable the heuristic dissection in UDP under: # Analyze > Enabled Protocols > MAC-LTE > mac_lte_udp and MAC-NR > mac_nr_udp # For more information see: https://wiki.wireshark.org/MAC-LTE # Using the same filename for mac_filename and mac_nr_filename writes both # MAC-LTE and MAC-NR to the same file allowing a better analysis. # NAS-layer packets are dissected with DLT=148, and Protocol = nas-eps. # # enable:            Enable packet captures of layers (mac/mac_nr/nas/none) multiple option list # mac_filename:      File path to use for MAC packet capture # mac_nr_filename:   File path to use for MAC NR packet capture # nas_filename:      File path to use for NAS packet capture ##################################################################### [pcap] enable = none mac_filename = /tmp/ue_mac.pcap mac_nr_filename = /tmp/ue_mac_nr.pcap nas_filename = /tmp/ue_nas.pcap  ##################################################################### # Log configuration # # Log levels can be set for individual layers. "all_level" sets log # level for all layers unless otherwise configured. # Format: e.g. phy_level = info # # In the same way, packet hex dumps can be limited for each level. # "all_hex_limit" sets the hex limit for all layers unless otherwise # configured. # Format: e.g. phy_hex_limit = 32 # # Logging layers: rf, phy, mac, rlc, pdcp, rrc, nas, gw, usim, stack, all # Logging levels: debug, info, warning, error, none # # filename: File path to use for log output. Can be set to stdout #           to print logs to standard output # file_max_size: Maximum file size (in kilobytes). When passed, multiple files are created. #                If set to negative, a single log file will be created. ##################################################################### [log] all_level = warning phy_lib_level = none all_hex_limit = 32 filename = /tmp/ue.log file_max_size = -1  ##################################################################### # USIM configuration # # mode:   USIM mode (soft/pcsc) # algo:   Authentication algorithm (xor/milenage) # op/opc: 128-bit Operator Variant Algorithm Configuration Field (hex) #         - Specify either op or opc (only used in milenage) # k:      128-bit subscriber key (hex) # imsi:   15 digit International Mobile Subscriber Identity # imei:   15 digit International Mobile Station Equipment Identity # pin:    PIN in case real SIM card is used # reader: Specify card reader by it's name as listed by 'pcsc_scan'. If empty, try all available readers. ##################################################################### [usim] mode = pcsc #reader =  pin = 0000 imei = 352406718839858  ##################################################################### # RRC configuration # # ue_category:          Sets UE category (range 1-5). Default: 4 # release:              UE Release (8 to 15) # feature_group:        Hex value of the featureGroupIndicators field in the #                       UECapabilityInformation message. Default 0xe6041000 # mbms_service_id:      MBMS service id for autostarting MBMS reception #                       (default -1 means disabled) # mbms_service_port:    Port of the MBMS service # nr_measurement_pci:   NR PCI for the simulated NR measurement. Default: 500 # nr_short_sn_support:  Announce PDCP short SN support. Default: true ##################################################################### [rrc] ue_category       = 1 #release           = 8 #feature_group     = 0xe6041000 #mbms_service_id   = -1 #mbms_service_port = 4321  ##################################################################### # NAS configuration # # apn:               Set Access Point Name (APN) # apn_protocol:      Set APN protocol (IPv4, IPv6 or IPv4v6.) # user:              Username for CHAP authentication # pass:              Password for CHAP authentication # force_imsi_attach: Whether to always perform an IMSI attach # eia:               List of integrity algorithms included in UE capabilities #                      Supported: 1 - Snow3G, 2 - AES, 3 - ZUC # eea:               List of ciphering algorithms included in UE capabilities #                      Supported: 0 - NULL, 1 - Snow3G, 2 - AES, 3 - ZUC ##################################################################### [nas] apn = internet.mts.ru apn_protocol = ipv4 user = mts pass = mts #force_imsi_attach = false #eia = 1,2,3 #eea = 0,1,2,3  ##################################################################### # Slice configuration # # enable:           Enable a specific slice # nssai-sst:        Specfic Slice Type # nssai-sd:         Slice diffentiator ##################################################################### [slicing] #enable = false #nssai-sst = 1 #nssai-sd = 1  ##################################################################### # GW configuration # # netns:                Network namespace to create TUN device. Default: empty # ip_devname:           Name of the tun_srsue device. Default: tun_srsue # ip_netmask:           Netmask of the tun_srsue device. Default: 255.255.255.0 ##################################################################### [gw] #netns = #ip_devname = tun_srsue #ip_netmask = 255.255.255.0  ##################################################################### # GUI configuration # # Simple GUI displaying PDSCH constellation and channel freq response. # (Requires building with srsGUI) # enable:               Enable the graphical interface (true/false) ##################################################################### [gui] enable = false  ##################################################################### # Channel emulator options: # enable:            Enable/Disable internal Downlink/Uplink channel emulator # # -- AWGN Generator # awgn.enable:       Enable/disable AWGN generator # awgn.snr:          SNR in dB # awgn.signal_power: Received signal power in decibels full scale (dBfs) # # -- Fading emulator # fading.enable:     Enable/disable fading simulator # fading.model:      Fading model + maximum doppler (E.g. none, epa5, eva70, etu300, etc) # # -- Delay Emulator     delay(t) = delay_min + (delay_max - delay_min) * (1 + sin(2pi*t/period)) / 2 #                       Maximum speed [m/s]: (delay_max - delay_min) * pi * 300 / period # delay.enable:      Enable/disable delay simulator # delay.period_s:    Delay period in seconds. # delay.init_time_s: Delay initial time in seconds. # delay.maximum_us:  Maximum delay in microseconds # delay.minumum_us:  Minimum delay in microseconds # # -- Radio-Link Failure (RLF) Emulator # rlf.enable:        Enable/disable RLF simulator # rlf.t_on_ms:       Time for On state of the channel (ms) # rlf.t_off_ms:      Time for Off state of the channel (ms) # # -- High Speed Train Doppler model simulator # hst.enable:        Enable/Disable HST simulator # hst.period_s:      HST simulation period in seconds # hst.fd_hz:         Doppler frequency in Hz # hst.init_time_s:   Initial time in seconds ##################################################################### [channel.dl] #enable        = false  [channel.dl.awgn] #enable        = false #snr           = 30  [channel.dl.fading] #enable        = false #model         = none  [channel.dl.delay] #enable        = false #period_s      = 3600 #init_time_s   = 0 #maximum_us    = 100 #minimum_us    = 10  [channel.dl.rlf] #enable        = false #t_on_ms       = 10000 #t_off_ms      = 2000  [channel.dl.hst] #enable        = false #period_s      = 7.2 #fd_hz         = 750.0 #init_time_s   = 0.0  [channel.ul] #enable        = false  [channel.ul.awgn] #enable        = false #n0            = -30  [channel.ul.fading] #enable        = false #model         = none  [channel.ul.delay] #enable        = false #period_s      = 3600 #init_time_s   = 0 #maximum_us    = 100 #minimum_us    = 10  [channel.ul.rlf] #enable        = false #t_on_ms       = 10000 #t_off_ms      = 2000  [channel.ul.hst] #enable        = false #period_s      = 7.2 #fd_hz         = -750.0 #init_time_s   = 0.0  ##################################################################### # PHY configuration options # # rx_gain_offset:       RX Gain offset to add to rx_gain to calibrate RSRP readings # prach_gain:           PRACH gain (dB). If defined, forces a gain for the tranmsission of PRACH only., #                       Default is to use tx_gain in [rf] section. # cqi_max:              Upper bound on the maximum CQI to be reported. Default 15. # cqi_fixed:            Fixes the reported CQI to a constant value. Default disabled. # snr_ema_coeff:        Sets the SNR exponential moving average coefficient (Default 0.1) # snr_estim_alg:        Sets the noise estimation algorithm. (Default refs) #                          Options: pss:   use difference between received and known pss signal, #                                   refs:  use difference between noise references and noiseless (after filtering) #                                   empty: use empty subcarriers in the boarder of pss/sss signal # pdsch_max_its:        Maximum number of turbo decoder iterations (Default 4) # pdsch_meas_evm:       Measure PDSCH EVM, increases CPU load (default false) # nof_phy_threads:      Selects the number of PHY threads (maximum 4, minimum 1, default 3) # equalizer_mode:       Selects equalizer mode. Valid modes are: "mmse", "zf" or any #                       non-negative real number to indicate a regularized zf coefficient. #                       Default is MMSE. # correct_sync_error:   Channel estimator measures and pre-compensates time synchronization error. Increases CPU usage, #                       improves PDSCH decoding in high SFO and high speed UE scenarios. # sfo_ema:              EMA coefficient to average sample offsets used to compute SFO # sfo_correct_period:   Period in ms to correct sample time to adjust for SFO # sss_algorithm:        Selects the SSS estimation algorithm. Can choose between #                       {full, partial, diff}. # estimator_fil_auto:   The channel estimator smooths the channel estimate with an adaptative filter. # estimator_fil_stddev: Sets the channel estimator smooth gaussian filter standard deviation. # estimator_fil_order:  Sets the channel estimator smooth gaussian filter order (even values perform better). #                       The taps are [w, 1-2w, w] # # snr_to_cqi_offset:    Sets an offset in the SNR to CQI table. This is used to adjust the reported CQI. # # interpolate_subframe_enabled: Interpolates in the time domain the channel estimates within 1 subframe. Default is to average. # # pdsch_csi_enabled:     Stores the Channel State Information and uses it for weightening the softbits. It is only #                        used in TM1. It is True by default. # # pdsch_8bit_decoder:    Use 8-bit for LLR representation and turbo decoder trellis computation (Experimental) # force_ul_amplitude:    Forces the peak amplitude in the PUCCH, PUSCH and SRS (set 0.0 to 1.0, set to 0 or negative for disabling) # # in_sync_rsrp_dbm_th:    RSRP threshold (in dBm) above which the UE considers to be in-sync # in_sync_snr_db_th:      SNR threshold (in dB) above which the UE considers to be in-sync # nof_in_sync_events:     Number of PHY in-sync events before sending an in-sync event to RRC # nof_out_of_sync_events: Number of PHY out-sync events before sending an out-sync event to RRC # # force_N_id_2: Force using a specific PSS (set to -1 to allow all PSSs). # force_N_id_1: Force using a specific SSS (set to -1 to allow all SSSs). # ##################################################################### [phy] #rx_gain_offset      = 62 #prach_gain          = 30 #cqi_max             = 15 #cqi_fixed           = 10 #snr_ema_coeff       = 0.1 #snr_estim_alg       = refs #pdsch_max_its       = 8    # These are half iterations #pdsch_meas_evm      = false #nof_phy_threads     = 3 #equalizer_mode      = mmse #correct_sync_error  = false #sfo_ema             = 0.1 #sfo_correct_period  = 10 #sss_algorithm       = full #estimator_fil_auto  = false #estimator_fil_stddev  = 1.0 #estimator_fil_order  = 4 #snr_to_cqi_offset   = 0.0 #interpolate_subframe_enabled = false #pdsch_csi_enabled  = true #pdsch_8bit_decoder = false #force_ul_amplitude = 0 #detect_cp          = false  #in_sync_rsrp_dbm_th    = -130.0 #in_sync_snr_db_th      = 3.0 #nof_in_sync_events     = 10 #nof_out_of_sync_events = 20  #force_N_id_2           = 1 #force_N_id_1           = 10  ##################################################################### # PHY NR specific configuration options # # store_pdsch_ko:       Dumps the PDSCH baseband samples into a file on KO reception # ##################################################################### [phy.nr] #store_pdsch_ko = false  ##################################################################### # CFR configuration options # # The CFR module provides crest factor reduction for the transmitted signal. # # enable:           Enable or disable the CFR. Default: disabled # # mode:             manual:   CFR threshold is set by cfr_manual_thres (default). #                   auto_ema: CFR threshold is adaptive based on the signal PAPR. Power avg. with Exponential Moving Average. #                             The time constant of the averaging can be tweaked with the ema_alpha parameter. #                   auto_cma: CFR threshold is adaptive based on the signal PAPR. Power avg. with Cumulative Moving Average. #                             Use with care, as CMA's increasingly slow response may be unsuitable for most use cases. # # strength:         Ratio between amplitude-limited vs unprocessed signal (0 to 1). Default: 1 # manual_thres:     Fixed manual clipping threshold for CFR manual mode. Default: 2 # auto_target_papr: Signal PAPR target (in dB) in CFR auto modes. output PAPR can be higher due to peak smoothing. Default: 7 # ema_alpha:        Alpha coefficient for the power average in auto_ema mode. Default: 1/7 # ##################################################################### [cfr] #enable           = false #mode             = manual #manual_thres     = 2.0 #strength         = 1.0 #auto_target_papr = 7.0 #ema_alpha        = 0.0143  ##################################################################### # Simulation configuration options # # The UE simulation supports turning on and off airplane mode in the UE. # The actions are carried periodically until the UE is stopped. # # airplane_t_on_ms:   Time to leave airplane mode turned on (in ms) # # airplane_t_off_ms:  Time to leave airplane mode turned off (in ms) # ##################################################################### [sim] #airplane_t_on_ms  = -1 #airplane_t_off_ms = -1  ##################################################################### # General configuration options # # metrics_csv_enable:    Write UE metrics to CSV file. # # metrics_period_secs:   Sets the period at which metrics are requested from the UE. # # metrics_csv_filename:  File path to use for CSV metrics. # # tracing_enable:        Write source code tracing information to a file. # # tracing_filename:      File path to use for tracing information. # # tracing_buffcapacity:  Maximum capacity in bytes the tracing framework can store. # # have_tti_time_stats:   Calculate TTI execution statistics using system clock # # metrics_json_enable:   Write UE metrics to JSON file. # # metrics_json_filename: File path to use for JSON metrics. # ##################################################################### [general] #metrics_csv_enable    = false #metrics_period_secs   = 1 #metrics_csv_filename  = /tmp/ue_metrics.csv #have_tti_time_stats   = true #tracing_enable        = true #tracing_filename      = /tmp/ue_tracing.log #tracing_buffcapacity  = 1000000 #metrics_json_enable   = false #metrics_json_filename = /tmp/ue_metrics.json