In a common frequency of use, on the ofdm - a method based on radio - data exchange system

摘要

A process for the common frequency of use, in a radio - data exchange system which, on the orthogonal frequency division multiplexing process (ofdm) is based, wherein the based on the ofdm - a method of radio - data exchange system comprises a base station and a mobile unit, which operate in a radio frequency band and the method comprising:Detection of a disturbance signal in the radio frequency band;by means of the base station, on the basis of the interference signal, from disturbing reference data in a control data head of a downlink - frame, which on the mobile unit is intended to be transmitted, wherein the interference reference data indicate a frequency range by the interference signal in the radio frequency band is occupied;by means of the base station transmission of the downlink - frame to the mobile unit, so that the mobile unit on the basis of the interference reference data can avoid the frequency range, in which the interference signal is,by means of the base station reporting of the interference signal a management server, wherein the interference signal from the management server for detecting a spectrum of use pattern and of a disturbance pattern of said radio frequency band is used,the base station the interference signal in the radio frequency band can be seen at regular intervals and the method further comprises:Receiving a periods parameter from the management server and, on the basis of a specified time interval by the periodic parameter, detecting a channel, the currently by other systems in the radio frequency band is occupied,the periodic parameter by the management server on the basis of the detected spectrum of use pattern and of the disturbance pattern is determined.