Method, apparatus and system implementing GPRS network flat architecture

Abstract

The invention discloses an implementation method for a flat architecture of a GPRS network. The method provides an application part protocol layer (hereinafter referred to as Gb-AP protocol layer) of an interface between a base station subsystem (BSS) and a serving GPRS support node (SGSN), wherein the Gb-AP layer is used to serve as a proxy and forward messages between a GMM / SM protocol layer ofthe SGSN and an LLC / SNDCP protocol layer of the BSS. The invention also discloses a GPRS network system, the BSS and the SGSN. The technical proposal of the invention can realize the separation of a control interface of the GPRS network and a user interface of the interface between the BSS and the SGSN, and contributes to the smooth transition from the GPRS network to wideband code division multiple access (WCDMA) network and a following evolution network. The technical proposal greatly reduces the service load of the SGSN and improves the forwarding capacity of the interface between the BSS and the SGSN.

Description

A method, device and system for realizing flat architecture of GPRS network technical field The present invention relates to the technical field of mobile communication, in particular to a method, device and system for realizing a flat network architecture of a General Packet Radio Service (GPRS). Background technique Figure 1 is a packet switching (PacketSwitched, PS) domain system architecture diagram of an existing general packet radio service (GeneralPackageRadioService, GPRS) network, including user equipment (UserEquipment, UE), base station subsystem (BaseStationSystem, BSS), serving GPRS support node (ServingGPRSSupportingNode, SGSN), GPRS gateway support node (GatewayGPRSSupportingNode, GGSN), home location register (HomeLocationRegister, HLR). Among them, the BSS is used to realize all the functions related to the radio, and transfer the data of the packet domain between the UE and the SGSN. The core function of SGSN is to realize functions such as route forward...

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Problems solved by technology

In this way, the GPRS network is not conducive to the subsequent evolution to WCDMA network and subsequent evolution network, and is not conducive to protecting the investment of operators

2. Many functions need to be implemented on the SGSN, such as the encryption of the LLC protocol layer, the compression of the SNDCP protocol layer, and the flow control of the BSSGP protocol layer, etc., resulting in complex processing of the SGSN and weak data forwarding capabilities of the Gb interface

The forwarding capability of the Gb interface will become a bottleneck when subsequent data services increase substantially

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