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Terminal switching method and device and acquisition method and device for source access gateway address

A technology for accessing gateways and switching devices, which is applied in the field of communication, can solve problems such as unconsidered and undefined implementation methods, and achieve the effects of ensuring continuity and saving air interface resources

Inactive Publication Date: 2008-02-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The problem existing in the existing solution is: after the handover occurs, how the destination access network obtains the address of the terminal, so as to select the previously connected NMA implementation method is not defined
In addition, when switching between heterogeneous networks, a signaling connection needs to be established between the access gateways, so that the destination access gateway can obtain the relevant data of the terminal from the source access gateway, but how to obtain the address of the source access gateway depends on existing solutions. is not considered in

Method used

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  • Terminal switching method and device and acquisition method and device for source access gateway address
  • Terminal switching method and device and acquisition method and device for source access gateway address
  • Terminal switching method and device and acquisition method and device for source access gateway address

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no. 1 example

[0072] In the first embodiment of the present invention, a mobile terminal switching method is provided. The first embodiment of the present invention will be described below with reference to FIG. 5 to FIG. 8 , wherein FIG. 5 is a flowchart showing a terminal switching method according to the first embodiment of the present invention.

[0073] As shown in Figure 5, the mobile terminal handover method according to the first embodiment of the present invention includes the following steps: Step S502, after the terminal is handed over from the source access gateway to the destination access gateway, the terminal sends a first message to the destination access gateway , which carries the IP address of the terminal before handover; step S504, in response to the first message, the destination access gateway searches for the corresponding network mobility agent according to the terminal IP address; and step S506, the destination access gateway sends a mobile The IP binding message i...

no. 2 example

[0083] In the second embodiment of the present invention, a method for obtaining a source access gateway address is provided. The second embodiment of the present invention will be described below with reference to FIG. 9 , wherein FIG. 9 is a flow chart showing a method for obtaining a source access gateway address according to the second embodiment of the present invention.

[0084] As shown in Figure 9, the method for obtaining the source access gateway address according to the second embodiment of the present invention includes the following steps: Step S902, the destination access gateway sends a query request message to the network mobile agent to query the source access gateway address of the terminal , wherein the query request message carries the terminal's IP address; and step S904, in response to the query request message, the network mobility agent queries the address of the source access gateway and returns it to the destination access gateway.

[0085] Wherein, the...

no. 3 example

[0090] In the third embodiment according to the present invention, another method for obtaining a source access gateway address is provided. The third embodiment of the present invention will be described below with reference to FIG. 10 and FIG. 11 , wherein FIG. 10 is a flowchart showing a method for obtaining a source access gateway address according to the third embodiment of the present invention.

[0091] As shown in Figure 10, the method for obtaining the source access gateway address according to the third embodiment of the present invention includes the following steps: Step S1002, after the terminal switches from the source access gateway to the destination access gateway, the terminal sends The IKE_AUTH message of the network key exchange protocol, which carries the address of the active access gateway; and step S1004, in response to the IKE_AUTH message of the network key exchange protocol, the destination access gateway acquires the source access gateway address fro...

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Abstract

The utility model provides a switching method of mobile terminal, comprising the following steps: step one, after the terminal is switched from a source access gateway to a target access gateway, the terminal sends a first message carrying the IP address before the switch of the terminal to the target access gateway; step two, to respond the first message, the target access gateway searches the corresponding network mobile agency according to the IP address; step three, the target access gateway sends to the network mobile agency the mobile IP binding message to bind the IP address of the terminal and the IP address of the target access gateway. The utility model also provides a device for mobile terminal switching, and a method and a device for acquiring the address of the source access gateway. With the technical proposal, the utility model has the advantages of saving air interface resource and ensuring the continuity of conversation.

Description

technical field [0001] The present invention relates to the communication field, and more particularly, to a terminal switching method and device, a source access gateway address acquisition method and device, which are especially suitable for evolving networks. Background technique [0002] Currently, the 3GPP2 (Third Generation Partnership Project 2) organization is formulating standards for the intercommunication between CDMA (Code Division Multiple Access) networks and other access types of networks such as WLAN (Wireless Local Access Networks). The CDMA network is characterized by a wide range of coverage and very mature functions such as authentication and billing. The WLAN network has the characteristics of small coverage area, low cost, and can provide high-bandwidth and high-speed services. The intercommunication between the two enables the WLAN network to enjoy the services provided by the CDMA network by utilizing the perfect authentication and billing mechanism ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04L12/56H04L29/06H04L9/32H04L29/12H04L12/28H04W36/00H04W80/04
CPCH04W36/0011H04W80/04H04W36/0019
Inventor 赵洁杨霞王洁
Owner HUAWEI TECH CO LTD
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