Title:
無線通信方法および無線通信システム
Document Type and Number:
Japanese Patent JP4119434
Kind Code:
B2
Abstract:
Radio communication system includes terminal including unit detecting radar wave transmitted through second-frequency channel, first-and-second-frequency channels through which radar wave fails to be transmitted being simultaneously utilized or one of first-and-second-frequency channels being utilized, unit generating radar-detection information including information indicating detection time when detecting unit detects radar wave, and information indicating frequency channel through which radar wave is transmitted, and unit transmitting radar-detection information, and base station including unit receiving radar-detection information, unit generating radar-occurrence information based on received-radar-detection information, radar-occurrence information including information indicating occurrence time when radar wave occurs, information indicating period of occurrence of radar wave, and information indicating frequency channel through which radar wave is transmitted, and unit transmitting radar-occurrence information, terminal further including unit receiving radar-occurrence information, and unit communicating with other terminals through second-frequency channel without using base station when radar wave fails to occur, based on received-radar-occurrence information.
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Inventors:
Tomoya Dan
Tomoko Adachi
Utsunomiya Yoriko
Daisuke Takeda
Kazumi Sato
Hirotsugu Ogura
Tomoko Adachi
Utsunomiya Yoriko
Daisuke Takeda
Kazumi Sato
Hirotsugu Ogura
Application Number:
JP2005028964A
Publication Date:
July 16, 2008
Filing Date:
February 04, 2005
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H04W16/02; H04J4/00; H04W24/10; H04W84/12
Domestic Patent References:
| JP2001285301A | ||||
| JP2004535095A | ||||
| JP2002135831A | ||||
| JP2001333081A | ||||
| JP5130053A |
Foreign References:
| WO2003030577A1 |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto