Base station, receiving device, mobile terminal, and...

Details Base station, receiving device, mobile terminal, and... Base station, receiving device, mobile terminal, and...

2008-09-10

2011-12-27

Dean, Raymond (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S069000, C370S318000

Reexamination Certificate

active

08086258

ABSTRACT:
A disclosed base station is used in a first wireless communication system using a first frequency band that is the same as or adjacent to a second frequency band used by a second wireless communication system, and includes a propagation loss estimation unit configured to estimate propagation loss of a signal in the first frequency band when the signal arrives at a receiving device of the second wireless communication system; a frequency difference calculation unit configured to calculate a frequency difference between the first frequency band and the second frequency band; a maximum transmission power determining unit configured to determine maximum transmission power based on the estimated propagation loss and the calculated frequency difference; and a transmission control unit configured to transmit a signal with transmission power less than or equal to the maximum transmission power determined by the maximum transmission power determining unit.

REFERENCES:
patent: 7519029 (2009-04-01), Takeda et al.
patent: 2007/0060190 (2007-03-01), Sanders et al.
patent: 2007/0183392 (2007-08-01), Tandai et al.
patent: 1430452 (2003-07-01), None
patent: 2005-80286 (2005-03-01), None
Partial European Search Report issued Feb. 3, 2011, in European Patent Application No. 08253038.7.
WiMAX Forum, “Mobile WiMAX-Part I: A Technical Overview and Performance Evaluation”, Aug. 2006, pp. 1-53.

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