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Title:
移動機および位置登録方法
Document Type and Number:
Japanese Patent JP4224496
Kind Code:
B2
Abstract:
A mobile device and location registration method in a combined update situation, wherein the mobile device updates its location and routing area periodically, that, even when packet communications with the PS domain (i.e. barred) are being restricted and the location cannot be registered, the location can be registered rapidly when the access restriction is released (i.e. when access to the PS domain is possible again). The mobile device comprises a packet timing unit that times a predetermined time; a location registration unit that registers the location to the control server for packet communications; a timing control unit that, if control server for packet communications is under access restriction, controls the timing operations to be temporarily stopped; and a location registration control unit that controls the location registration unit to register the location to the control server for packet communications, and also controls the location registration unit to register the location to the control server for packet communications if the control server for packet communications has released the access restriction and if the timing control unit has stopped the timing operations of the packet timing unit. Periodic update timer. Combined update. Periodic routing/location area update.

Inventors:
Noguchi Katsuhiro
Okuzumi Go
Hideo Mochida
Tetsube Tanabe
Masaomi Kanai
Takechi Nakajima
Application Number:
JP2006028984A
Publication Date:
February 12, 2009
Filing Date:
February 06, 2006
Export Citation:
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Assignee:
NTT DoCoMo, Inc.
NEC
Panasonic Mobile Communications Co., Ltd.
International Classes:
H04W60/02; H04W48/00; H04W8/12; H04W88/06; H04W92/02; H04W92/24
Domestic Patent References:
JP2005295232A
JP2004328135A
JP5219561A
JP2003070067A
JP2006005966A
Attorney, Agent or Firm:
Yoshiki Hasegawa
Shiro Terasaki
Tomoya Kurokawa
Yuji Suwa
Takashi Okiyama