ACCESS ROUTER, SERVICE CONTROL SYSTEM, AND SERVICE CONTROL METHOD

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EP 1 883 188 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	published in accordance with Art. 153(4) EPC

(15)	Correction information:
	Corrected version no 1 (W1 A1)

(48)	Corrigendum issued on:
	25.06.2008 Bulletin 2008/26

(43)	Date of publication:
	30.01.2008 Bulletin 2008/05

(21)	Application number: 06746458.6

(22)	Date of filing: 16.05.2006

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International Patent Classification (IPC):

H04L 12/56^(2006.01)

(86)	International application number:
	PCT/JP2006/309744

(87)	International publication number:
	WO 2006/123656 (23.11.2006 Gazette 2006/47)

(84)	Designated Contracting States:
	DE GB

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Priority:

16.05.2005 JP 2005142593

(71)	Applicant: NTT DoCoMo, Inc.
	Chiyoda-ku Tokyo 100-6150 (JP)

(72)	Inventors:
	NISHIDA, Katsutoshi, I. P. Dept., NTT DoCoMo, Inc. Chiyoda-ku, Tokyo 1006150 (JP) ISOBE, Shin-ichi, I. P. Dept., NTT DoCoMo, Inc. Chiyoda-ku, Tokyo 1006150 (JP) MATSUBARA, Naoki, DoCoMo Technology, Inc., Minato-ku, Tokyo 1070052 (JP)

(74)	Representative: Henseler, Daniela
	Rethelstrasse 123 40237 Düsseldorf 40237 Düsseldorf (DE)

(54)	ACCESS ROUTER, SERVICE CONTROL SYSTEM, AND SERVICE CONTROL METHOD

(57) A service is transparently provided to a mobile terminal device without the mobile terminal device knowing an address of a service providing device or a device which relays a packet in a network. A packet between the service providing device which provides a service and a mobile terminal device 10 which receives the service is relayed by a mobility control node 21. An access router 12 inquires of another device about information on the mobility control node 21, and holds correspondence information between information obtained by an inquiry result and identification information of the mobile terminal device 10 in a table. Transfer of a packet between the mobile control node 21 and the mobile terminal device 10 is controlled based on the correspondence information held in the table. With this configuration, the network can transparently provide the service to the mobile terminal device without the mobile terminal device knowing the address of the device which relays the packet in the network.