In a method for communicating by radio, a frequency band divided up into a plurality of subcarriers is used for the communication. Messages are sent from a base station to a user station and/or from the user station to the base station. Messages are processed at some times using a first FDMA method such as for example OFDMA and at other times using a second FDMA method such as for example IFDMA. A transmitter and a receiver implement the method.

 
Web www.patentalert.com

< Passive filter selectivity with precise resolution for integrated circuit radios

< Method and apparatus for operating a mobile communication device coupled with an external power supply for charging a battery of the mobile communication device

> Method for locating mobile terminals, system and components therefor

> Method for synchronizing a radio communication system that is divided up into radio cells
~ 00617