Method and apparatus for controlling transmission power of...

Details Method and apparatus for controlling transmission power of... Method and apparatus for controlling transmission power of...

2011-01-25

2011-01-25

Gesesse, Tilahun (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S069000, C455S127100

Reexamination Certificate

active

07877109

ABSTRACT:
A method and apparatus of controlling a transmission power of a cognitive radio (CR) environment, the method including: sensing an incumbent user that uses a same channel as the CR environment; detecting signal quality information of the sensed incumbent user; calculating, using the detected signal quality information, a maximum transmission power value that corresponds to a maximum transmission power that may be transmitted by a CR base station in the CR environment; and controlling a communication of the CR environment to be performed within the calculated maximum transmission power value.

REFERENCES:
patent: 2006/0193295 (2006-08-01), White et al.
patent: 2007/0202867 (2007-08-01), Waltho et al.
patent: 2008/0089279 (2008-04-01), Hu et al.
patent: 2008/0165680 (2008-07-01), Chang
patent: 2008/0165754 (2008-07-01), Hu
patent: 2008/0171546 (2008-07-01), Hyon et al.
patent: 2008/0198948 (2008-08-01), Tang
patent: 2009/0047916 (2009-02-01), Haykin
patent: 2009/0143008 (2009-06-01), Hottinen et al.

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