The air interface refers to the transmission of data by means of electromagnetic waves through the medium of air ( over the air, OTA abbreviation ). The air interface is in particular characterized in that there is no transmission medium, such as copper or fiber optic cable.
Areas of application
Technologies which rely on an air interface, include:
- Update firmware in smartphones ( FOTA = Firmware Over-The- Air)
- GSM, UMTS and LTE (This function GERAN, UTRAN or E-UTRAN as an air interface)
- Broadcasting ( in particular antennas and satellite television and radio)
- Wireless technology