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Handover method for mobile station having mobile IP address in mobile communication system

A technology of mobile communication system and address, which is applied in the direction of wireless network protocol, transmission system, wireless communication, etc., and can solve problems such as obstacles to active realization

Inactive Publication Date: 2003-01-29
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no way for the first FA to inform the second FA so that data can be exchanged between the CN and the second FA through IP tunneling, thus preventing active handover from being achieved

Method used

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  • Handover method for mobile station having mobile IP address in mobile communication system
  • Handover method for mobile station having mobile IP address in mobile communication system
  • Handover method for mobile station having mobile IP address in mobile communication system

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Embodiment Construction

[0018] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions and constructions are not described in detail since they would obscure the invention in unnecessary detail.

[0019] figure 1 Illustrates a network configuration in a mobile communication system according to the present invention, wherein a handover occurs when a MN with a mobile IP address moves to the area of ​​another FA, where an FA is established between the MN and an FA dialogue. In the mobile communication system according to the present invention, the operation of each node in the network, and the handover procedure when a MN with a mobile IP address performs data transmission / reception in the area of ​​an FA will be described below .

[0020] see figure 1 with 2 , a MN (10) has a mobile IP address and can communicate in another foreign area as well as in the area of ​​an H...

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PUM

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Abstract

There is provided a handover method for a mobile node (MN) having a mobile IP (Internet Protocol) address in a mobile communication system. When a handover occurs as the MN moves from the area of a first FA to the area of a second FA adjacent to the first FA, the second FA transmits a Binding Update message including the IP address of the second FA and an acknowledgement request to the first FA. In response to the Binding Update message, the first FA transmits a Binding Acknowledge message to the second FA, including a field indicative of the IP tunneling capability of a router connected to a corresponding node (CN) to which the MN connects a call.

Description

Background of the invention [0001] 1. Field of invention [0002] The present invention generally relates to a handover method in a mobile communication system, and in particular to a handover method for a mobile station with a mobile IP address. [0003] 2. Related technical description [0004] Handover is implemented to ensure mobility of the mobile station and continuous communication without interruption. Handover holds a call and changes the source base station to the target base station without the user noticing. While performing a control operation to make the target base station its serving base station, the mobile station continues the call. Handover is divided into soft handover and hard handover. Soft handoff occurs with simultaneous allocation of channels to two base stations, while hard handoff connects a channel with the target base station and releases an already established channel from the source base station. [0005] Research has been actively condu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/38H04B7/26H04L45/851H04W8/06H04W36/00H04W36/08H04W36/12H04W40/34H04W80/04H04W92/00
CPCH04W8/06H04L29/12009H04W80/04H04L61/35H04W36/0011H04L29/12783H04L61/00H04W36/32H04W8/02H04W8/26
Inventor 郑泰成
Owner SAMSUNG ELECTRONICS CO LTD
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