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Title:
RADIO COMMUNICATION DEVICE AND METHOD
Document Type and Number:
Japanese Patent JP2009218638
Kind Code:
A
Abstract:

To prevent overhead by a control signal from increasing excessively while improving frequency utilization efficiency, when using different frequency bands in the same region.

A radio communication device includes: an intermediate band detection section for detecting an intermediate band, namely the band between first and second frequency bands assigned to the same or a different mobile communication system; a use situation detection section for detecting a multiplex system of uplinks and downlinks used in the first and second frequency bands, respectively; and a decision section for at least deciding the multiplex system of the uplinks and downlinks usable in the intermediate band and a guard band prohibited in the intermediate band, based on the intermediate band and the multiplex system of uplinks and downlinks.


Inventors:
FUJII HIROTADA
YOSHINO HITOSHI
Application Number:
JP2008000057026
Publication Date:
September 24, 2009
Filing Date:
March 06, 2008
Export Citation:
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Assignee:
NTT DOCOMO INC
International Classes:
H04W16/14; H04J1/00; H04J3/00; H04J4/00; H04W52/04; H04W72/04; H04W72/08; H04W84/18
Domestic Patent References:
JP2005244505A2005-09-08
Attorney, Agent or Firm:
伊東 忠彦



 
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