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Messaging method, interworking agent node, data gateway and network system

A technology of data gateway and intercommunication agent, which is applied in the field of intercommunication agent node, message transmission method, data gateway and network system, can solve the problems such as the inability to realize intercommunication between SGW and PGW, and achieve the effect of intercommunication

Active Publication Date: 2011-06-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technology uses IWP (Interworking Proxy, Interworking Proxy Node) between SGW and PGW to try to realize the intercommunication between SGW and PGW. Currently, IWP is transparent to SGW and PGW, and PMIP transmitted between PGW and SGW The destination address of the / GTP protocol is the IP address of the opposite end. The destination address of the IP message sent by the PGW to the SGW is different from the destination address of the IP message sent by the SGW to the PGW. The inventor found in the process of implementing the present invention that when When there are multiple IWPs in the network, because the IP network usually routes according to the destination address, the IP network may route the packets connected to the same PDN to different IWPs, and the communication between the SGW and the PGW cannot be realized. intercommunication

Method used

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  • Messaging method, interworking agent node, data gateway and network system
  • Messaging method, interworking agent node, data gateway and network system
  • Messaging method, interworking agent node, data gateway and network system

Examples

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Embodiment Construction

[0032] An embodiment of the present invention provides a message delivery method, including: the interworking proxy node IWP obtains the address of the data gateway; the IWP allocates an address for identifying itself, and sends an IP message carrying the address allocated by the IWP to the data gateway ; receiving the IP message sent by the data gateway, where the destination address of the IP message sent by the data gateway is the address allocated by the IWP. Using the technical solution provided by the embodiment of the present invention ensures that the IP messages connected to the same PDN are routed to the same IWP.

[0033] refer to figure 1 Embodiment 1 of the present invention provides a message delivery method, in which the PMIP protocol is used between the SGW and the IWP, and the GTP protocol is used between the IWP and the PGW. The method specifically includes:

[0034] Step A1, the UE sends an attach request to the MME through the eNodeB.

[0035] Step A2, MM...

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PUM

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Abstract

The embodiment of the invention provides a messaging method, an interworking agent node, a data gateway and a network system, wherein the messaging method comprises the following steps: the interworking agent node IWP obtains the address of the data gateway; the IWP assigns an address used for identifying itself and sends an IP message carrying the address assigned by the IWP to the data gateway;the IP message sent from the data gateway is received, and the target address of the IP message sent from the data gateway is the address assigned by the IWP. With the technical scheme provided by the inventive embodiment, the IP message connected by a same PDN can be ensured to be routed to the same IWP.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a message delivery method, an intercommunication proxy node, a data gateway and a network system. Background technique [0002] With the development of telecommunication technology, the mobile packet network has developed from 3G network to EPS (Evolved Packet System, evolved mobile packet network), and the core network of mobile packet network has also changed from traditional GPRS network to EPC (Evolved Packet Core, evolved mobile packet network). core network) development. [0003] Wherein, the EPC network includes: MME (Mobility Management Entity, Mobility Management Entity), SGW (Serving GW, Serving Gateway) and PGW (PDN GW, PDN Gateway). [0004] When the SGW and PGW are located in different PLMNs (Public Land Mobile Networks), the protocols supported by the SGW and the PGW may be different. For example, the visited network uses the GTP (GPRS Tunnel Protocol, Genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66H04L29/12H04L29/08H04L12/56
CPCH04W88/182H04W8/26H04W80/04
Inventor 周青银宇胡颖
Owner HUAWEI TECH CO LTD