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Method for terminal access in heterogeneous network, and method and equipment for heterogeneous network switching

A technology of heterogeneous network and mobile access gateway, applied in the field of heterogeneous network handover, can solve the problem of not realizing multi-homing function, and achieve the effect of flexible and efficient multi-interface/multi-homing management and simple method

Active Publication Date: 2014-04-02
天津中玻北方新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method and equipment for terminal access in a heterogeneous network, which are used to solve the defect in the prior art that a complete multi-homing function is not realized when multiple interfaces of a terminal access a heterogeneous network using PMIP. The interfaces communicate with each other, so that the terminal can use any interface to send and receive IP packets, and realize flexible and efficient multi-interface / multi-homing management

Method used

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  • Method for terminal access in heterogeneous network, and method and equipment for heterogeneous network switching
  • Method for terminal access in heterogeneous network, and method and equipment for heterogeneous network switching
  • Method for terminal access in heterogeneous network, and method and equipment for heterogeneous network switching

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0122] Example 1. The new mobile access gateway detects that the terminal sends an IP packet to the new mobile access gateway through a new interface;

[0123] The switching of the terminal from the old interface to the new interface can be initiated by the terminal. When the terminal detects that the quality of the wireless link has changed and the switching conditions are met, the terminal can automatically choose to switch to the new interface, and the user can also manually select the switch directly on the terminal. to the new interface. After choosing to switch to the new interface, the terminal sends an IP message to the network through the new mobile access gateway connected to the new interface. If the new mobile access gateway detects that the terminal sends data to the network by itself, the new mobile access gateway sends a proxy binding update message with a handover indication parameter set to handover to the local mobility anchor.

example 2

[0124] Example 2: After the new mobile access gateway or the old mobile access gateway detects that the quality of the wireless link meets the handover condition.

[0125] The handover of the terminal from the old interface to the new interface can be actively initiated by the network side. When the new mobile access gateway or the old mobile access gateway on the network side detects that the quality of the wireless link meets the switching conditions, such as the wireless connection between the terminal and the new mobile access gateway. If the link quality is better than that to the old mobile access gateway, a handover is initiated from the new mobile access gateway or the old mobile access gateway, and then the new mobile access gateway sends a handover indication parameter set to handover to the local mobility anchor. The proxy binding update message.

[0126] In addition, in order to reduce the packet loss rate of data transmission during handover, the following steps m...

example 3

[0186] Example 3: Set the data forwarding channel corresponding to the old home network prefix assigned by the old mobile access gateway to the terminal to point to the new mobile access gateway;

[0187] For example: the content included in the proxy binding record of the MN before handover is shown in Table 3 below, assuming that MAG_1 is the old mobile access gateway, and MAG_2 is the new mobile access gateway, if the old hometown of MAG_2 in Table 3 The data forwarding channel corresponding to the network prefix HNP_1 is set to point to MAG_2, and the care-of address corresponding to HNP_1 in the proxy binding information registered by MAG_1 will be updated from CoA_1 to CoA_2, as shown in Table 4.

[0188] Table 3. Proxy binding records before switching

[0189] terminal

logo

mobile access

gateway

Home Network Prefix

care-of address

to bind

priority

to bind

logo

MN_ID

MAG_1

HNP_1

CoA_1

1 ...

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Abstract

The invention discloses a method for terminal access in a heterogeneous network, and a method and equipment for heterogeneous network switching. The method for terminal access in the heterogeneous network comprises the steps of: receiving a proxy binding notification message, wherein the proxy binding notification message carries an updated proxy binding record and is sent by a local mobility anchor, the updated proxy binding record comprises proxy binding information registered for the terminal by terminal-associated mobile access gateways; and establishing a data forwarding correlation between the terminal-associated mobile access gateways according to the proxy binding information and a forwarding correlation record stored in the terminal. In the embodiment of the invention, the terminal is connected to a plurality of mobile access gateways through a plurality of interfaces, the intercommunication of the plurality of interfaces is implemented through the proxy binding notification, so that the terminal can send and receive IP messages by using any of the interfaces to realize flexible and efficient multi-interface / multi-homing management.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a method for terminal access in a heterogeneous network, a method and a device for switching between heterogeneous networks. Background technique [0002] Mobile communication allows a user to establish a session with others or accept a session invitation from others during the moving process, and to maintain the established session during the moving process. Mobile communication can use a variety of wireless technologies, such as Global System for Mobile Communications (Global System for Mobile Communications; GSM for short), Wideband Code Division Multiple Access (WCDMA for short), Worldwide Microwave Interconnection Access (Worldwide Various communication networks corresponding to various wireless technologies, such as Interoperability for Microwave Access; Wimax for short) and Wireless Local Area Networks (WLAN for short), have also develop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/08H04W36/14
Inventor 崔翔嵩
Owner 天津中玻北方新材料有限责任公司