Radio communication method and radio base transmission station

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C455S063300, C455S063400

Reexamination Certificate

active

08000745

ABSTRACT:
An antenna pattern assigning method capable of avoiding interference between a plurality of base transmission stations constituting a radio system in a cellular type broad band communication. In the radio system, when assigning a fixed beam pattern different for each frequency, each of the radio base transmission station devices transmits a radio wave having a directivity pattern having a peak in the same direction in two or more different frequencies, and between adjacent radio base transmission station devices, radio transmission is performed by using different directivity patterns in the two or more frequencies.

REFERENCES:
patent: 6400955 (2002-06-01), Kawabata et al.
patent: 6470195 (2002-10-01), Meyer
patent: 2002/0085653 (2002-07-01), Matsuoka et al.
patent: 2004/0125867 (2004-07-01), Tong et al.
patent: 2005/0197162 (2005-09-01), Fujishima et al.
patent: 2000-59287 (2000-02-01), None
patent: 2005-159849 (2003-11-01), None
patent: 2004-236092 (2004-08-01), None
Tomcik, Jim, “QFDD Technology Overview, IEEE 802.20 Working Group on Mobile Broadband Wireless Access” IEEE C802.20-05-59r1, Nov. 2005, 37 Pages Total.
Office Action from Japanese Patent Office for JP Application No. 2006-058853, Dated Nov. 16, 2010.

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