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Explained: How in-flight Internet works
  • The Indian Express
  • |
  • Science and Technology
  • |
  • 2025-01-03
  • Satellite
  • Wifi-connectivity

Air India has launched Wi-Fi Internet connectivity on select domestic and international flights, becoming the first Indian airline to do so. Initially free, the service will expand across more aircraft, utilizing satellite and air-to-ground technologies.

Air India's Onboard Wi-Fi Service Rollout

Air India has become the first airline in India to offer Wi-Fi Internet connectivity on domestic flights. This service is initially available on select domestic and international flights.

Current Fleet Offering Wi-Fi

  • Wi-Fi is available on Airbus A350, Boeing 787-9, and select Airbus A321neo aircraft.
  • These aircraft are equipped with the necessary hardware for Internet connectivity.
  • The service is being extended from erstwhile Vistara aircraft, facilitated by Nelco and Panasonic Avionics Corporation.

Accessing Onboard Wi-Fi

  • Passengers must enable Wi-Fi on their devices and select the 'Air India Wi-Fi' network.
  • They need to enter their details, such as PNR and last name, to access the internet.

Technologies for In-Flight Internet Connectivity

  • Air-to-Ground (ATG) Technology: Utilizes ground-based cellular towers to provide connectivity. Limited by the availability of towers.
  • Satellite-Based Connectivity: Internet from ground stations is transmitted to aircraft through satellites, offering wider coverage.

Functioning of In-Flight Wi-Fi

  • Wi-Fi signals from passenger devices are collected by in-cabin antennae.
  • Signals are relayed to an onboard server, then transmitted via satellites or ground towers depending on the technology used.
  • Satellite systems provide signals through an antenna on the aircraft to a satellite, while ATG systems use cellular towers.

Cost Considerations

  • Initial installation of antennae is costly for airlines.
  • Globally, some airlines offer a limited amount of free Internet before charging for data packs.
  • Airlines may offer free or discounted Internet to loyalty program members and premium passengers.
  • Air India offers the service free for a limited introductory period.
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