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Communication system, mobile terminal and transfer device

  • US 20040165565A1
  • Filed: 02/25/2004
  • Published: 08/26/2004
  • Est. Priority Date: 02/26/2003
  • Status: Active Grant
First Claim
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1. A communication system including a plurality of transfer devices for transferring packets to a current location of a mobile terminal, a plurality of access router devices arranged in a network to be able to connect to the mobile terminal, and the mobile terminal connected to an access router device to receive the packets from a transfer device through the access router device, the system comprising:

  • a first transmitter for transmitting a request for information which specifies a transfer device used by the mobile terminal for packet reception and anycast address which indicates address regarding the plurality of transfer devices, to the access router device connected to the mobile terminal;

    a second transmitter for transmitting the request to a transfer device which has a shortest distance from the access router device on the network among the plurality of transfer devices, based on the anycast address relayed to be transmitted through the access router device; and

    a third transmitter provided at the transfer device for transmitting the information which specifies the transfer device to the mobile terminal based on the request.

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