One of the unique features of Celona's LTE access points is their dual-sector design, which allows for simultaneous broadcasting of radio frequency signals, enabling multiple devices to connect to the AP at the same time. The Spectrum allocated to the AP is split evenly between the two sectors. For example, if your spectrum allocation is 40 MHz total, each radio will have 20 MHz of channel bandwidth available.
Celona 5G Access Points (APs) have a single sector/radio per AP and use the full spectrum allocation for that sector. For example: if your spectrum allocation is 40 MHz total, the sector will have 40MHz channel bandwidth available to use.
Access Point Configuration and Operational States
In the Access Point Details page for an LTE AP in Celona Orchestrator, the Operational State card displays the status of each sector. If both are marked
"UP" the AP is functioning normally.
In the Access Point Details page for a 5G AP in Celona Orchestrator, the Operational Status card displays the status of the single sector. If marked
"UP" with the context
"Access Point has N2 Up with Edge and is ready to connect devices" the AP is functioning normally.
The Access Point Configuration Status card will say AP is
Deployed as it is now already assigned to a site and is powered up.
Summarizing all the Operation and Configuration states observed under the Access Points Details page
AP is already assigned to a site, powered up, and connected to the network. It can now connect devices
AP is already assigned to a site, powered up, and ready to connect to the network. It may be pending Antenna configuration by the user or Spectrum configuration by the Celona Edge.
Either one or both of the sectors is DOWN (US-CBRS)
The AP is assigned to a customer and is pending assignment to a site. This AP cannot be connected to the network.
NOTE: Any changes made to Advanced Access Point Configurations, Time Sync Configurations, or Operational State from the Orchestrator will change Access Point Operational state temporarily.
CBRS Higher-Tier User Activity (US Deployments)
If the CBRS Spectrum Access System (SAS) detects activity from a higher-tier user (an incumbent or Priority Access License (PAL) holder) in the United States, and that higher-tier user uses spectrum that interferes with your spectrum grant, the SAS will instruct the interfering portion of your spectrum grant to disable transmission.
Celona APs support automatic recovery from spectrum loss due to higher-tier user activity, where the AP requests a new spectrum grant that does not interfere with the higher-tier user's frequency range. Automatic recovery may take up to 2 minutes. During this time, the radio(s) transmitting on frequencies interfering with the higher-tier user will be non-operational.
If a radio is temporarily disabled because of CBRS higher-tier user activity, the Access Points page in Celona Orchestrator will display a banner noting the AP is "currently experiencing an outage and performing at reduced capacity". In some cases if the SAS event affects only one of the radios for an LTE AP, AP will continue to operate with reduced capacity.
The AP's Access Point Details page in Celona Orchestrator displays the same banner.
To determine which frequency has been impacted, refer to the Radios card on the Access Point Details page.