What does GPRS network mean

gprs What does network mean

Today I'd like to share with you gprs Relevant knowledge points about what the network refers to , Detailed content , Clear logic , I believe most people still know too much about this knowledge , So share this article for your reference , I hope you will gain something after reading this article , Now let's take a look .

gprs The network is based on existing GSM Network to realize the network ;GSM The Internet is the global mobile communication system , In the existing GSM A node needs to be added to the network , Such as gateway GPRS Support nodes and services GPRS Support nodes ,GSN yes GPRS The most important network node in the network ,GSN With mobile routing management function , It can connect to various types of data networks , You can also connect to GPRS register .

The operating environment of this tutorial ：OriginOS 2.0 System 、VIVO X80 mobile phone .

gprs What does the Internet mean

Based on the existing GSM Network to realize the network

GPRS The network is based on existing GSM The Internet . In the existing GSM A node needs to be added to the network , Such as GGSN（Gateway GPRS Supporting Node, gateway GPRS Support nodes ） and SGSN(ServinGSN, service GPRS Support nodes ）.GSN yes GPRS The most important network node in the network .GSN With mobile routing management function , It can connect to various types of data networks , You can also connect to GPRS register .GSN It can complete data transmission and format conversion between mobile stations and various data networks .GSN It can be an independent device similar to a router , with GSM Medium MSC Integrate together .

GSN There are two types of ： One is to serve GSN（ServingGSN,SGSN), The other is gateway GSN（Gateway GSN,GGSN).SGSN Its main function is to record the current location information of the mobile station , And on mobile and GGSN Between the completion of mobile packet data transmission and reception .GGSN It mainly acts as a gateway , It can be connected to many different data networks , Such as ISDN,PSPDN and LAN etc. .GGSN Also known as GPRS Router .（GGSN You can put GSM In the net GPRS Packet to protocol conversion , So that these packets can be sent to the remote

TCP/IP or X.25 The Internet . in addition , Some manufacturers put forward GR（GSMRegister,GPRS database ） The concept of .GR Be similar to GSM Medium ILR, yes GPRS Business database . It can exist independently , Can also be combined with HLR coexistence , from The server Or program-controlled switch .

Expanding knowledge ：GSM network

GSM Net is Global System for Mobile Communications For short , Global mobile communication system , Be commonly called " gotone ", It is a mobile communication technology standard originated in Europe , It is the second generation mobile communication technology , It was developed to enable a common mobile phone network standard to be used all over the world , It is the first digital modulation in the world 、 The network layer structure and services are specified in the cellular system network .

GSM It was developed to solve the fragmented state of the first generation cellular system in Europe . stay GSM Before , European countries have adopted different cellular standards throughout the European continent , For users , You can't use a standard mobile station to communicate throughout Europe . In addition, due to the weakness of the analog network itself , Its capacity is also limited . To this end, the European Telecommunication Union in 1980 At the beginning of, we began to develop a mobile communication system covering all Europe , It is called GSM The system of .

GSM Network is a network with hierarchical control , One GSM The network is divided into 3 Network subsystem .

Network switching subsystem （NSS）; Base station subsystem （BSS), Mobile （MS） It is also a subsystem, but it is usually considered BSS Part of ; Network management subsystem （NMS）.

In this network structure MS And BSS The interface between is called air interface ;BSS and NSS The interface between is called A Interface ;BSS、NSS And NMS The interface between is called operation and maintenance interface . Today's GSM The standard only defines two open interfaces ： Air interface and A Interface .

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