Method, device and system for context management based on Sl uniform interface

Abstract

The invention discloses a PDP context based on the condition that an Iu-PS interface of a 3G network is unified to an Sl interface of an LTE / SAE network, and a management method for loading the context. The method comprises the steps: establishing a connection relationship of NSAPI, TI and EPS BearerId by a wireless access network controller, informing a mobility management entity of the connection relationship, inducing the Sl interface of the SAE network by UTRAN of the 3G network to further induce a certain characteristic of the SAE network so as to enhance the performance of the original 3G network and enable the SAE network to be compatible with the UTRAN of the 3G network to promote the evolution and the integration of the networks. In addition, the invention also discloses the wireless access network controller and a system.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a management method, device and system of a PDP context and bearer context based on an S1 unified interface. Background technique [0002] The development of mobile communication has formed a variety of wireless communication systems, such as the second generation mobile communication system (2G): Global System for Mobile Communication (GSM, Global System for Mobile Communication), General Packet Radio System (GPRS, General Packet Radio System), Enhanced data rate GSM service (EDGE, Enhanced Data rates for GSM service), code division multiple access (CDMA, Code Division Multiple Access); third generation mobile communication system (3G): unified mobile communication system (UMTS, Universal Mobile Telecommunications System, Also known as Wideband Code Division Multiple Access (WCDMA, Wideband CDMA)), Time Division-Synchronous Code Division Multiple Access (TD-SCDMA,...

AI Technical Summary

Problems solved by technology

The 3G network can be compatible with the base station subsystem (BSS, Base Station System) of 2G, but in the long-term evolution project / system architecture evolution (LTE / SAE, Long Time Evolution / System Architecture Evolution) network, the general mobile of 3G is not considered The communication system Terrestrial Radio Access Network (UTRAN, Universal Mobile Telecommunications System Teritorial RadioAccess Network) is compatible, such as figure 1 shown

[0010] In the process of realizing the present invention, the inventor has found through research that due to figure 2 The Iu control plane interface protocol stack structure in the shown 3G network is the same as image 3 There are certain differences between the S1 control plane interface protocol stack structures of the LTE / SAE network shown, and one of the main differences is the difference in the Non-Access Stratum (NAS, Non Access Stratum) protocol, and the PDP context-related identifier of 3G The allocation and management mechanism is very different from the allocation and management mechanism of bearer-related identifiers in LTE / SAE. Therefore, there will be certain difficulties in improving the performance of the original 3G network and making the SAE network compatible with the 3G wireless access network

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