QoS setup method and QoS setup system for use in mobile communication, and mobile terminal apparatus, home agent and server apparatus used for the QoS setup system

A QoS setup system for use in a mobile IP network, wherein a mobile node

• recognizes a first QoS setup request when an opposite correspondent node makes the first QoS setup request for its route to the mobile node, and
• establishes a second QoS setup between a home agent or home network and the mobile node or visited network.

A QoS setup method, comprising the steps of

• a home agent recognizing a first QoS setup request when an opposite correspondent node makes the first QoS setup request for its route to the mobile node,
• the home agent making a second QoS setup request, and
• establishing the second QoS setup for the route between the home address of the mobile node and a Care-of Address thereof.

A QoS setup system for use in a mobile IP network, wherein a home agent recognizes a first QoS setup request when an opposite correspondent makes the first QoS setup request for its route to mobile node, and

• establishes a second QoS setup between the home agent or home network and the mobile node or its visited network.

A QoS setup method comprising a server apparatus which carries out a QoS setup control for network resources, wherein the server apparatus recognizes a first QoS setup request when an opposite correspondent node makes the first QoS setup request for its route to the home address of the mobile node, and

• makes a second QoS setup request to carry out a QoS setup for a route from a home address of the mobile node to a Care-of Address thereof.

A QoS setup system for use in a mobile IP network comprising a server apparatus which carries out a QoS setup control for network resources, wherein the server apparatus

• recognizes a first QoS setup request when an opposite correspondent node makes the first QoS setup request for its route to the home address of the mobile node, and
• acquires a Care-of Address of the mobile node to carry out a second QoS setup between a home agent or home network and the mobile node or visited network.