Mobile terminal, control apparatus, home agent and packet communications method

  • US 8,018,915 B2
  • Filed: 07/09/2004
  • Issued: 09/13/2011
  • Est. Priority Date: 07/09/2003
  • Status: Expired due to Fees
First Claim
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1. A mobile terminal in a packet communications system in which a control apparatus implements routing control of a received packet directed for the mobile terminal, the mobile terminal comprising:

  • a plurality of network interface cards;

    a communication manager configured to select at least one network interface card among from the plurality of network interface cards, in accordance with information regarding the plurality of network interface cards; and

    an upper layer manager configured to receive the packet transmitted from the control apparatus using at least one network interface card selected by the communication manager, andwherein the packet communications system is configured to implement paging control in which the control apparatus transmits a paging notification packet to a paging area of the mobile terminal when receiving of the packet directed for the mobile terminal, so as to acquire location information of the mobile terminal and to decide a transfer destination of the packet; and

    the communication manager comprises;

    a collector configured to collect a plurality of link layer addresses set for the plurality of network interface cards;

    a decider configured to decide a representative link layer address from the plurality of link layer addresses collected by the collector; and

    an assigner configured to assign the representative link layer address decided by the decider to all of the plurality of network interface cards; and

    the upper layer manager comprises;

    a notifier configured to notify the control apparatus of the representative link layer address decided by the decider by using the selected network interface card, when transmitting, to the control apparatus, a paging registration packet for forming the paging area; and

    an address resolver configured to perform address resolution by registering a correspondence between the representative link layer address and a network layer address of the mobile terminal with a plurality of apparatuses on a communication route between the control apparatus and the mobile terminal,wherein the control apparatus manages the network layer address of the mobile terminal, the representative link layer address and the paging area where the mobile terminal is located in association with one another.

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