srsRAN_4G/srsue/ue.conf.example

#####################################################################
#                   srsUE configuration file
#####################################################################
# RF configuration
#
# dl_earfcn: Downlink EARFCN code.
# 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
#
# Optional parameters: 
# dl_freq:            Override DL frequency corresponding to dl_earfcn
# ul_freq:            Override UL frequency corresponding to dl_earfcn
# nof_rx_ant:         Number of RX antennas (Default 1, supported 1 or 2)
# 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: ""
# #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.
# burst_preamble_us:  Preamble length to transmit before start of burst. 
#                     Default "auto". B210 USRP: 400 us, bladeRF: 0 us. 
#####################################################################
[rf]
dl_earfcn = 3400
freq_offset = 0
tx_gain = 70
rx_gain = 40

#nof_rx_ant = 1
#device_name = auto
#device_args = auto
#time_adv_nsamples = auto
#burst_preamble_us = auto


#####################################################################
# MAC-layer packet capture configuration
#
# Packets are captured to file in the compact format decoded by 
# the Wireshark mac-lte-framed dissector and with DLT 147. 
# To use the dissector, edit the preferences for DLT_USER to 
# add an entry with DLT=147, Payload Protocol=mac-lte-framed.
# For more information see: https://wiki.wireshark.org/MAC-LTE
#
# enable:   Enable MAC layer packet captures (true/false)
# filename: File path to use for packet captures
#####################################################################
[pcap]
enable = false
filename = /tmp/ue.pcap
nas_enable = false
nas_filename = /tmp/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: phy, mac, rlc, pdcp, rrc, nas, gw, usim, 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
#####################################################################
[log]
all_level = info
all_hex_limit = 32
filename = /tmp/ue.log

#####################################################################
# USIM configuration
#
# algo: Authentication algorithm (xor/milenage)
# op:   128-bit Operator Variant Algorithm Configuration Field (hex)
# amf:  16-bit Authentication Management Field (hex)
# k:    128-bit subscriber key (hex)
# imsi: 15 digit International Mobile Subscriber Identity
# imei: 15 digit International Mobile Station Equipment Identity
#####################################################################
[usim]
algo = milenage
op   = 63BFA50EE6523365FF14C1F45F88737D
amf  = 8000
k    = 00112233445566778899aabbccddeeff
imsi = 001010123456789
imei = 353490069873319


#####################################################################
# RRC configuration
#
# stimsi_attach: If enabled, always tries first an S-TMSI attach using the
#                S-TMSI value stored in .stimsi file generated in previous run
# mmec_value:    If defined (non-zero), overwrites the value stored in .stimsi file
# m_tmsi_value:  If defined (non-zero), overwrites the value stored in .stimsi file
#
# ue_category:   Sets UE category (range 1-5). Default: 4
# feature_group: Hex value of the featureGroupIndicators field in the
#                UECapabilityInformation message. Default 0xe6041c00
#####################################################################
[rrc]
#stmsi_attach = false
#mmec_value    = 0
#mtmsi_value  = 0
#ue_category   = 4
#feature_group = 0xe6041c00

[gui]
enable = false

#####################################################################
# Expert configuration options
#
# ip_netmask:           Netmask of the tun_srsue device. Default: 255.255.255.0
# rssi_sensor_enabled:  Enable or disable RF frontend RSSI sensor. Required for RSRP metrics but
#                       can cause UHD instability for long-duration testing. Default true.
# 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)
# attach_enable_64qam:  Enables PUSCH 64QAM modulation before attachment (Necessary for old 
#                        Amarisoft LTE 100 eNodeB, disabled by default)
# nof_phy_threads:      Selects the number of PHY threads (maximum 4, minimum 1, default 2)
# 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.
# time_correct_period:  Period for sampling time offset correction. Default is 10 (ue_sync.c),
#                       good for long channels. For best performance at highest SNR reduce it to 1.  
# sfo_correct_disable:  Disables phase correction before channel estimation to compensate for 
#                       sampling frequency offset. Default is enabled. 
# sss_algorithm:        Selects the SSS estimation algorithm. Can choose between 
#                       {full, partial, diff}. 
# estimator_fil_w:      Chooses the coefficients for the 3-tap channel estimator centered filter. 
#                       The taps are [w, 1-2w, w]
# metrics_period_secs:  Sets the period at which metrics are requested from the UE. 
#
# pregenerate_signals:  Pregenerate uplink signals after attach. Improves CPU performance.
#
# average_subframe_enabled: Averages in the time domain the channel estimates within 1 subframe.
#                           Needs accurate CFO correction.
#
# sic_pss_enabled:      Applies Successive Interference Cancellation to PSS signals when searching for neighbour cells.
#                       Must be disabled if cells have identical channel and timing, for instance if generated from
#                       the same source.
#
# metrics_csv_enable:   Write UE metrics to CSV file.
#
# metrics_csv_filename: File path to use for CSV metrics.
#
# cfo_integer_enabled:  Enables integer CFO estimation and correction. This needs improvement
#                       and may lead to incorrect synchronization. Use with caution.
# cfo_correct_tol_hz:   Tolerance (in Hz) for digial CFO compensation. Lower tolerance means that
#                       a new table will be generated more often.
#
# cfo_pss_ema:           CFO Exponential Moving Average coefficient for PSS estimation during TRACK.
# cfo_ref_ema:           CFO Exponential Moving Average coefficient for RS estimation after PSS acquisition
# cfo_ref_mask:          Bitmask for subframes on which to run RS estimation (set to 0 to disable, default sf=[1, 5])
# cfo_loop_bw:           CFO feedback loop bandwidth for samples from PSS or RS
# cfo_loop_pss_tol:      Tolerance (in Hz) of the PSS estimation method. Below this value, PSS estimation does not feeds back the loop
#                        and RS estimations are used instead (when available)
# cfo_loop_ref_min:      Tolerance (in Hz) of the RS estimation method. Below this value, RS estimation does not feeds back the loop
# cfo_loop_pss_timeout:  After the PSS estimation is below cfo_loop_pss_tol for cfo_loop_pss_timeout times consecutively,
#                        RS adjustments are allowed.
#
#####################################################################
[expert]
#ip_netmask          = 255.255.255.0
#rssi_sensor_enabled = false
#prach_gain          = 30
#cqi_max             = 15
#cqi_fixed           = 10
#snr_ema_coeff       = 0.1
#snr_estim_alg       = refs
#pdsch_max_its       = 4
#attach_enable_64qam = false
#nof_phy_threads     = 2
#equalizer_mode      = mmse
#time_correct_period = 5
#sfo_correct_disable = false
#sss_algorithm       = full
#estimator_fil_w     = 0.1
#average_subframe_enabled = false
#sic_pss_enabled     = true
#pregenerate_signals = false
#metrics_csv_enable  = false
#metrics_csv_filename = /tmp/ue_metrics.csv

# CFO related values
#cfo_integer_enabled = false
#cfo_correct_tol_hz  = 0
#cfo_pss_ema         = 0.1
#cfo_ref_ema         = 0.01
#cfo_ref_mask        = 1023
#cfo_loop_bw_pss     = 0.05
#cfo_loop_bw_ref     = 0.01
#cfo_loop_pss_tol    = 300
#cfo_loop_ref_min    = 0
#cfo_loop_pss_conv   = 50

#####################################################################
# Manual RF calibration
#
# Applies DC offset and IQ imbalance to TX and RX modules. 
# Currently this configuration is only used if the detected device is a bladeRF
#
# tx_corr_dc_gain: TX DC offset gain correction
# tx_corr_dc_phase: TX DC offset phase correction
# tx_corr_iq_i: TX IQ imbalance inphase correction
# tx_corr_iq_q: TX IQ imbalance quadrature correction
# same can be configured for rx_*
#####################################################################
[rf_calibration]
tx_corr_dc_gain = 20
tx_corr_dc_phase = 184
tx_corr_iq_i = 19
tx_corr_iq_q = 97