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Getting Started with Celona 5G LAN
Advanced Access Point Configurations
Advanced Access Point Configurations
Customize and monitor Advanced configurations on your Access Point
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Written by Team Celona
Updated this week

The Access Points Details Page

The Access Points details page shows the Configurations and Monitoring information about an Access Point assigned to a site on the Celona Network. This includes;

To open the Access Points Details page, click the Access Point name on the Access Points inventory page in Celona Orchestrator.

Access Point Config

The Access Point Config card highlights all the Advanced Wireless configurations on the Access Point. Each parameter provides information to help monitor performance and mobility on the Access Point.

To view the configuration parameters on the Access Point, it must be assigned to a site and be in status 'Transmit RF UP'. The Celona Edge assigned to the site must be running version 2206 or higher.

Frequency Band (Read-Only)

The TDD (Time Division Duplex) Frequency band is allocated for the Access Point in 4G/5G and represents blocks of sequential frequency ranges.

For Celona LTE deployments, Frequency Band 48 CBRS (Citizens Broadband Radio Service) is used. It’s a total 150MHz within the 3500 MHz spectrum band that stretches between 3550-3700MHz (or 3.55-3.7GHz), operating in the 4G spectrum in the United States.

Celona 5G deployments will show Frequency Bands 48, 77 and 78 under Frequency Band

TDD Configuration

Celona uses TDD Duplex Mode for the frequency bands supported. In a TDD system, a single frequency is shared in the time domain between Uplink and Downlink. In TDD, supported frame configurations are based on different DL/UL partitions. Celona pre-configures a specific TDD configuration depending on the service requirements of the customer.

Supported Subframe configurations:

Uplink Heavy (TDD Configuration 1):

Selects more Uplink subframes when the use case requires a greater proportion of Uplink data. This is when most traffic is uplinked e.g. CCTV/IP camera applications, from remote cameras to the base

Downlink heavy (TDD Subframe Configuration 2):

Selects more Downlink subframes when use cases require a greater proportion of Downlink data. E.g. Internet /ISP applications.

To create a TDD Template to configure on one or more sites on your network, go to

Admin Settings -> Wireless Configurations

Click on Create Template to create a new TDD configuration template for your site.

Add a Template Name, select the available scope: Entire Site and select a TDD configuration to be applied across all APs on the site.

Click on Create & Apply it to apply to an existing site immediately or Create to just create a template and apply to a site/sites later.

On clicking, Create & Apply, the Assign Template card shows available sites to apply this new template.

Please note that applying this template to a site will result in network downtime due to the APs going RF DOWN and back UP to apply the TDD configuration.

You can view the TDD configuration on an AP under Access Point Config


The Celona network is identified using Public Land Mobile Network Identity (PLMN-ID) which consists of a three-digit mobile country code (MCC) and a three-digit mobile network code (MNC).

  • For US deployments, PLMN ID should be set to 315010. 315010 is designated for CBRS operation.

  • For International deployments, PLMN ID should be set to 999503

  • PLMN ID can be set to a custom value

    • Note that Celona SIM cards are pre-programmed to work with PLMN ID 315010 or 999503. To use a custom PLMN ID you will need a custom SIM profile. Please contact Celona Support team if you want to use a custom PLMN ID

See the Edge Cluster Creation article for details on configuring PLMN ID for your network.

Tracking Area Code (Read-Only)

Tracking Area Code (TAC) identifies the Tracking Area that serves a group of Access Points in a single core network. If a Mobile Device/ UE moves between different Tracking Areas, it would page the Core network with a Tracking Area Update specifying its current location (Tracking Area).

The TAC value assigned to a mobile device can move within this Tracking Area without changing its serving network.

Handover Parameters (Read-Only)

This section highlights the thresholds configured in Handover/Mobility capability between Access Points on the network.

  • A1 - Event A1 is triggered when a mobile device is at a location where Serving radio RSRP becomes better than the A1 threshold

  • A2 - Event A2 is triggered when a mobile device is at a location where Serving radio RSRP becomes worse than the A2 threshold

  • A3 - Event A3 is triggered when a neighboring cell becomes better than the serving cell by the A3 offset value. Event A3 is used to trigger intra-frequency mobility, where the device moves between two radios on the same frequencies.

  • A5 - Event A5 is triggered when a mobile device is at a location where the serving radio becomes worse than the A5_1 threshold while a neighboring radio becomes better than the A5_2 threshold. Event A5 is used to trigger inter-frequency mobility, where the device moves between two radios operating on different frequencies.

  • TTT (Time To Trigger) - The criteria for each mobility event trigger must be satisfied during the time to trigger. For example, if the TTT is set to 480ms, the mobile device has that long to report measurements before it can move to a different radio.

  • Hysteresis - RF measurements can widely vary from ±3dB to ±7dB or more. The hysteresis mobility margin is to avoid ping-pong mobility/handover effects and ensure neighboring radio RSRP is better than serving radio RSRP.

Network Details

AP Neighbor List

The neighbor list per radio/sector is configured with the channels in use by the potential target Access Points radios that a mobile device can move/handover to within the network.

Advanced Access Point Config

To customize the Time sync source, Carrier Aggregation (4G Only), and Maximum Device Load on your Access Point, click on Edit Config to open up the Advanced Configuration window.

You can choose Configure now and note that the Access Point will notice an immediate downtime.

An alternate option is to schedule the configuration to go through at any maintenance window of the user's choice to avoid impact on connected devices on the network.

Carrier Aggregation

Enabling Carrier Aggregation doubles the bandwidth and thereby the bitrate on the Downlink and capacity of the network by combining CC (Component Carriers) to 40MHz.

Carrier Aggregation is applicable to Indoor Access Points and Outdoor Access Points with overlapping antennas or Omni antennas.

Please note that Carrier Aggregation is only supported on Celona 4G Access Points.

Max Load (Maximum Connected Devices per Radio)

Maximum Devices connected per radio can be configured to 16, 32, or 48 per sector (32/64/128 per LTE Access Point) under Advanced Configuration . This configuration limits the maximum number of devices an Access Point can have connected at a given time.

Time Sync Configuration

This configuration specifies the current protocol this Access Point uses to Time Synchronize with other Access Points on the Celona Network. This configuration can be edited from the Access Points Details the page or in bulk from the Site Details page.

Refer to the Time Sync Configuration document for additional information and a guide to configuring a timing synchronization source for APs on your Celona network.

Radio Details

The Radio Details card can be seen on the Access Points Details Page below the Advanced Access Point Config card.

LTE Celona Access Points are dual radio hardware, and each radio can be controlled separately whereas the 5G Celona Access Points are single radio hardware

This card lists the "live" Configuration for Radio /Sector on the Access Point when it is transmitting.

Channel ID - LTE channel IDs are identifiers calculated using the center frequency of the radio frequency range configured in the operating frequency band

Channel Bandwidth (MHz) - A frequency band (in the above case, CBRS Band 48) is divided into smaller segments called channels. How wide each channel is and how much frequency range it covers is called the Channel bandwidth.

Frequency (MHz) - The center frequency of the configured frequency range on each radio on the Access Point.

For example: Center Frequency = 3640MHz with channel Bandwidth = 20MHz

The frequency range used by the radio = 3630MHz -3650MHz

PCI - Physical Cell Id (PCI) is used by the User devices to identify each radio on the Access Point. PCI planning across a multi- Access Point network results in efficient resource utilization and hence improved network performance.

Operational Power (dBm) - The Output Tx power from each Radio on the Access Point. Users can customize this value under edit config -> Advanced Configuration when the Access Point is transmitting.

Note that changing this value may impact the performance of your network and the Operational Power must ideally be equal to Celona SON Recommended Power

SAS Grant (US-CBRS Only) - SAS Grant status for the Access Point. Status observed are:

  • Authorized - AP has an active grant and can transmit RF

  • Granted - AP has a grant but cannot transmit before getting authorized by SAS

  • Registered - AP is registered with SAS and is in the process of requesting a spectrum grant.

  • Suspended - AP spectrum grant has been suspended by SAS due to higher-tier user activity. Read about the impact to Access Point states due to higher-tier user activity here

Operational Status - Each radio's operational state is represented in the card by either Up / Down.

If both Radios on the Access Point are Up, the Access Point is operating at full capacity.

If one of the Radios on the Access Point is Down, Access Point is operating at reduced capacity.

A radio could go down due to a SAS-triggered event. Some FAQs are answered in this document.

If both Radios on the Access Point are Down, the Access Point is not transmitting and user devices won't be able to connect to this Access Point.

You can find more details on Access Point states here

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