Air interface

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The term air interface , also known as radio interface , describes the transmission of data by means of electromagnetic waves , ie apparently through the medium "air". In fact, these waves also propagate in a vacuum. In English, over-the-air ( OTA ) is used as a synonym for “wireless” (in German: cordless ). The “air interface” is particularly characterized by the fact that radio (or infrared) transmission takes place.

application areas

Android smartphone during an OTA firmware update

Transmission methods that are not medium-bound include:


  • Volker Jung, Hans-Jürgen Warnecke (Hrsg.): Handbook for telecommunications. 2nd edition, Springer Verlag, Berlin 2002, ISBN 978-3-642-62736-1 .
  • Martin Werner: communications engineering. An introduction to all courses, 7th edition, Vieweg + Teubner, Wiesbaden 2010, ISBN 978-3-8348-0905-6 .
  • Christof Linde, Jan Tino Demel: Digital radio. Publishing group Hüthing Jehle Rehm GmbH, ISBN 978-3-609-68436-9 .

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