Method and system for establishing direct tunnel

Abstract

The invention provides a method and system for establishing a direct tunnel. The method comprises: after receiving related information of establishment of a direct tunnel of an opposite terminal, a first network element initiates direct tunnel establishment to a second network element of the opposite terminal. According to the invention, because the first network element initiates direct tunnel establishment to the second network element of the opposite terminal after receiving related information of establishment of the direct tunnel of the opposite terminal, data path optimization during exchange between nearby users can be realized, the network resource processing load of the provider can be reduced, and the user data transmission time delay is reduced. Moreover, the using experience of the user can be effectively enhanced.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method and system for establishing a direct tunnel. Background technique [0002] In order to maintain the competitiveness of the third-generation mobile communication system in the communication field, provide users with faster rate, lower delay, and more personalized mobile communication services, and at the same time reduce the operating costs of operators, the third-generation partner A standard working group of a 3rd Generation Partnership Project (3GPP) is working on research on an Evolved Packet System (EPS). The whole EPS is divided into two parts, the wireless access network and the core network. Among them, the core network includes Home Subscriber Server (HSS), Mobility Management Entity (MME), Serving GPRS Support Node (Serving GPRS Support Node, SGSN), Policy and Charging Rule Function (Policy and Charging A Rule Function, PCRF) entity, a Serving Gateway (Serv...

AI Technical Summary

Problems solved by technology

[0012] from figure 1 It can be seen from the figure that all data of the user terminal needs to pass through the access gateway (also called the anchor gateway). In this data transmission mode, the data is processed centrally at the anchor gateway, which also increases the gap between the anchor gateway and the transmission network. Load, all data packets must pass through the access gateway, which will cause the bottleneck problem of the access gateway to be more serious

In addition, even if two user terminals communicating with each other are physically located very close to each other, the data communication between them needs to go through the access gateway, which increases the delay of user data transmission and reduces the user experience.

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