Advanced communications systems that
can be tailored across different platforms and fleets.
can be tailored across different platforms and fleets.
How it works
OnAir provides advanced communications systems for both single-aisle and twin-aisle commercial aircraft. Solutions are based entirely on certified equipment and software and can be either line-fitted or retro-fitted on Boeing and Airbus fleets and other aircraft types.
Mobile OnAir uses the Global System for Mobile Communications (GSM) and General Packet Radio Service (GPRS) network technologies - the world's most robust and widely deployed infrastructure for mobile voice and data. GSM has over 3.6 billion users in 218 countries, representing 86% of the global mobile market. Roaming capabilities are facilitated through agreements with mobile network operators worldwide.
Passengers' GSM devices (and GSM-technology compliant devices) connect to an antenna onboard the aircraft and a mini-GSM network, which sends the calls and data via an Inmarsat SwiftBroadband satellite link to the ground. Here it connects to the OnAir ground infrastructure, which routes the calls and data to the public networks (mobile and fixed network operators).
Onboard system
All components of the onboard system are provided either with the complete aircraft at delivery (linefit), or as a kit, including the antenna and satcom unit (for single aisle), plus documentation. Overhead signs advise passengers on when they may use the service, and a control panel enables cabin crew to manage the service (e.g. disable voice).
The system has been certified by aviation authorities, including EASA (European Aviation safety Agency) and CAAC (Civil Aviation Administration of China).
The aircraft needs to be equipped with four main components:
- A 'picocell' which provides the radio interface to mobile phones in the cabin;
- Onboard Control Equipment ensures that onboard mobile phones operate in compliance with aviation certification and telecommunications regulatory requirements;
- A server to manage communications centrally, establishing calls with the ground segment over the air-to-ground link, and interfacing with aircraft systems; and
- An air-to-ground modem to allocate air-to-ground resources according to the demands of the server; and
In conjunction with the picocell, the Onboard Control Equipment ensures that phones and smartphone devices are only able to connect to the OnAir network.
Satellite link
Mobile OnAir currently uses SwiftBroadband, leveraging the new-generation Inmarsat satellites to provide broadband connectivity to the aircraft. However, the onboard system has been designed to easily adapt to other air-ground link options.
Ground infrastructure
OnAir operates a ground network connected to mobile roaming partners, long-distance telephony providers and the Internet. The OnAir Network Operations Centre monitors and supports the service on all active aircraft on a 24x7 basis.
