configs: set TDD default config to 20 MHz. Improves COTS UE compatibility

Author: Ismael

configs/gnb_rf_b200_tdd_n78_10mhz.yml

@@ -0,0 +1,32 @@
+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 traffic from the AMF.
+
+rf_driver:
+  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: 50                                                   # Transmit gain of the RF might need to adjusted to the given situation.
+  rx_gain: 60                                                   # Receive gain of the RF might need to adjusted to the given situation.
+
+cell_cfg:
+  dl_arfcn: 632628                                              # 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.