# This example configuration outlines how to configure the srsRAN Project gNB to create a single TDD cell
# transmitting in band 78, with 20 MHz bandwidth and 30 kHz sub-carrier-spacing. A USRP B200 is configured 
# as the RF frontend using split 8. Note in this example an external clock source is not used, so the sync 
# is not defined and the default is used. 

amf:
  addr: 127.0.1.100                                                 # The address or hostname of the AMF.
  bind_addr: 127.0.0.1                                            # A local IP that the gNB binds to for>

ru_sdr:
  device_driver: uhd                                              # The RF driver name.
  device_args: type=b200,num_recv_frames=64,num_send_frames=64    # Optionally pass arguments to the selected RF driver.
  # clock:							  # Specify the clock source used by the RF
  # sync:							  # Specify the sync source used by the RF
  srate: 23.04                                                    # RF sample rate might need to be adjusted according to selected bandwidth.
  otw_format: sc12  
  tx_gain: 80                                                     # Transmit gain of the RF might need to adjusted to the given situation.
  rx_gain: 40                                                     # Receive gain of the RF might need to adjusted to the given situation.

cell_cfg:
  dl_arfcn: 627340                                                # ARFCN of the downlink carrier (center frequency).
  band: 78                                                        # The NR band.
  channel_bandwidth_MHz: 20                                       # Bandwith in MHz. Number of PRBs will be automatically derived.
  common_scs: 30                                                  # Subcarrier spacing in kHz used for data.
  plmn: "00101"                                                   # PLMN broadcasted by the gNB.
  tac: 7                                                          # Tracking area code (needs to match the core configuration).
  pci: 1                                                          # Physical cell ID.

log:
  filename: /tmp/gnb.log                                          # Path of the log file.
  all_level: warning                                                 # Logging level applied to all layers. 

pcap:
  mac_enable: false                                               # Set to true to enable MAC-layer PCAPs.
  mac_filename: /tmp/gnb_mac.pcap                                 # Path where the MAC PCAP is stored.
  ngap_enable: false                                              # Set to true to enable NGAP PCAPs.
  ngap_filename: /tmp/gnb_ngap.pcap                               # Path where the NGAP PCAP is stored.