Patent ID: 6167237
Filing Date: 2000-12-26
Classification: H04W

Abstract:
A universal wireless communication system in which an available radio frequency spectrum is divided among at least a first and a second wireless subsystem, the first wireless subsystem comprising at least a first radio base station and a first plurality of wireless communication stations, and the second wireless subsystem comprising at least a second radio base station and a second plurality of wireless communication stations, characterised in that for operating the wireless communication system up to the limits of spectral band while at the same time allowing wireless communication stations to operate such that minimal power consumption is obtained under acceptable transmission conditions, the wireless communication system comprises a transmission protocol for adapting a spectral transmission characteristic of a wireless communication station comprising the following steps:a) a radio base station of one of the wireless subsystems determines whether a wireless communication station of the other wireless subsystem is causing adjacent channel interference in a channel of the one wireless subsystem, whereby the wireless communication station of the other subsystem is identified by said radio base station,b) the radio base station of the one wireless subsystem issues a command to the wireless communication station of the other wireless subsystem in accordance with the determined interference situation, andc) the identified wireless communication station adjusts its spectral transmission characteristic from a first to a second characteristic in accordance with the command.