Radio units for AWS Private 5G - AWS Private 5G

Radio units for AWS Private 5G

Radio units emit radio frequency (RF) signals for end-user equipment to connect to the Private 5G network. Radio units come preconfigured for network access to the AWS Region and the Spectrum Access Service (SAS), a service that grants spectrum. To receive spectrum grants, radio units require a certification from a certified professional installer (CPI), which specifies the geographic location of the radio unit, including latitude, longitude, and elevation. For more information, see CBRS certified professional installer (CPI).

Certified Professional Installer (CPI) certification

A certified professional installer (CPI) must specify the geographic location of the radio unit, including latitude, longitude, and elevation. The CPI must provide their name, the user name of the CPI account, the CPI certificate that comes with certification, and the certificate password. The certificate is a PKCS#12 file, which is a file with a .p12 file extension. To provide the file, you can use the Private 5G console, one of the AWS language SDKs, or the AWS CLI. If you use an SDK or the CLI, Base64 encode the .p12 file.

To certify a radio unit, you must provide the following information.

  • Latitude

  • Longitude

  • Elevation in feet

  • An elevation reference

    • Above ground level

    • Above mean sea level

  • CPI name

  • CPI username

  • Certificate password

  • Certificate

You are responsible for the accuracy of the locations that the radio units report to SAS. If you change the location of your radio units after the initial certification so that the location it reports to SAS is no longer accurate, you must have the radio unit certified again before operating in the new location. You must keep the radio unit within ±164 feet (50 meters) horizontal and ±9.8 feet (3 meters) of elevation of the location that the radio unit reports.

Understanding radio unit lights

Radio units have lights that you can use to monitor the state of the equipment. Radio units connect and register with a cloud controller over the internet. Occasionally radio units get firmware updates from the cloud controller.

The following is a picture of the light panel on a radio unit.


        An illustration of the lights on a radio unit.
Progression of lights for a network site with a single radio unit
LTE SYNC EPC EMS PWR
The radio unit is powered on Green
The radio unit receives a spectrum grant Green Green
The radio unit connects to the core Green Green Green
The network is available but no clients are connected Orange Green Green Green
Clients are connected Green Green Green Green
Progression of lights for a network site with multiple radio units
LTE SYNC EPC EMS PWR
The radio unit is powered on Green
The radio unit receives a spectrum grant Green Green
The radio unit acquired a GNSS lock or synchronized with another radio unit with a GPS signal Green Green Green
The radio unit connects to the core Green Green Green Green
The network is available but no clients are connected Orange Green Green Green Green
Clients are connected Green Green Green Green Green
Indicator lights
LTE
  • Solid orange indicates that the network is up but no clients are associated with it.

  • Solid green indicates that the network is up and at least one wireless client is associated with it.

  • Off indicates that the network is down.

SYNC
  • Solid green indicates that the radio unit either acquired a Global Navigation Satellite System (GNSS) lock or synchronized with another radio unit in the network site with a GPS signal. With proper RF planning, there is seamless handover of devices across radio units.

  • Flashing green indicates that either this radio unit or the radio unit that it was synchronized with lost its GNSS lock, or the synchronization between the radio units has drifted. It can take around 30 minutes to reacquire a GNSS lock or synchronize with another radio unit with a GPS signal. Seamless handover of devices across radio units might not work. Verify that at least one radio unit has a GPS signal, and then CPI certify that radio unit.

  • Solid yellow indicates that the radio unit is either attempting to acquire a GNSS lock or to synchronize with another radio unit in the network site with a GNSS lock. It can take around 30 minutes to acquire the GNSS lock or synchronize with another radio unit.

  • Off indicates that the network site has a single active radio unit.

EPC
  • Solid green indicates that the radio unit has connected to the core.

EMS
  • Solid green indicates that the radio unit has registered successfully and has contacted and registered with the radio unit management cloud controller.

  • Fast-flashing green indicates that the radio unit is obtaining updates from the cloud controller.

  • Slow-flashing green indicates that the radio unit is disconnected from the internet. Check your network firewall settings.

PWR
  • Red and then flashing green indicates that radio unit is receiving an IP address from the network.

  • Solid green indicates that the radio unit has a valid IP address.

  • Slow-flashing green indicates that there is a network issue.