Apparatus and method for signal transmission and reception...

Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part

Reexamination Certificate

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Details

C455S574000, C455S343200, C455S343600, C455S450000, C455S522000, C455S458000, C370S311000, C370S328000, C370S349000, C370S350000

Reexamination Certificate

active

07450909

ABSTRACT:
An apparatus and method for transmitting and receiving a signal according to a change of downlink channel information by a mobile station in a broadband wireless access communication system. The method includes: detecting the change of the downlink channel information; receiving a report from a base station that there is data for the mobile station; and reporting the change of the downlink channel information to the base station, so that the base station and the mobile station have same downlink channel information.

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