In simple terms it is an infrastructure that supports running of various network functions without specialised hardware or asics typically in an. This architecture simplifies the whole network by moving mobile network intelligence to the sdn controller, while removing old, complex nodes such as sgsn and ggsn and mobile protocols such as gtp. The ugw can function as a ggsn, an sgw, a pgw, or any combination of them but. Highest possible network resiliency using load sharing over multiple instances of leissner pgw ggsn. Sgsns and ggsns work in conjunction within the gprsumts network. Wireless packet core includes gprsumts elements such as ggsn, sgsn, aaa, as well as defining qos. Nov 26, 2014 in this paper we present a new architecture for delivery of gprs service which uses modern approaches such as sdn and nfv. This architecture simplifies the whole network by moving mobile network. The ggsn software uses a virtual template interface, which is a logical interface within the router and does not depend on the physical medium directly. Find all acronyms and expansion of these 4 letters. The interface makes it accessible to add a new yateucn unit, to setup a cluster of yateucns, to configure a single yateucn function mscvlr, gmsc, sgsn, ggsn. In this document we shall describe these gprs support nodes, called generically gsn nodes.
Abstract sgsn and ggsn are the two core network elements of the general packet radio service which enables internet to become mobile. Understanding ggsn redirection, ggsn pooling scenarios overview, example. Two new nodes, the serving gprs support node sgsn and the gateway gprs support node ggsn are introduced and they can be combined in to one physical node. Keep the nodes sgsn, ggsn, mme and cpg to the latest software correction version. This must be done with use of many routers to generate huge amounts of data that can simulate the real world ip core network. This data network overlaps a secondgeneration gsm network providing packet data transport at the rates from 9. Sgsn is responsible for the transfer of data packets between the mobile stations. Ggsn, the ggsn refers to gateway gprs support node, it provides internetworking between the gprs network and the packet data network pdn. The sgsn performs the same functions as the msc for voice traffic. In each new release of sgsn, or when implementation or upgrades have been done on routing application on sgsn, design and test engineers at ericsson need to emulate the ip core network.
Refer to 3gpp specs as and when required in solving various customer problems related to packet core network. Gprs network architecture overlays additional elements ggsn, sgsn, etc onto. Gprs support nodes ggsns, and in the future the s4 sgsn. A unified gsm and lte core network that implements in software the functions of gmsc, ggsn and pgw. Emulation of the ip core network for testing of the service. Software engineering and project planningsepm data mining and warehouse dmw data analyticsda mobile communicationmc. In order to do this, we used a gnu gpl licensed software ggsn implementation compatible with ipv4 and gtpv0v1 called openggsn 0. Gprs architecture works on the same procedure like gsm network, but, has additional entities that allow packet data transmission. The critical part in the gprs network is the mobile to gsn ms sgsn link which includes the msbts, btsbsc, bsc sgsn, and the sgsn ggsn link.
Gprs sgsn capacity test application description this application allows network equipment manufacturers and operators to validate the capacity of a gprs core network element sgsn and ggsn prior to deployment or release of a new sw load. A gprs network is composed of the following network nodes. On the other hand, mobileoriginated packets are routed to the right network by the ggsn. Do software upgrades of sgsn mme wpp platform and ggsn juniper along with cpg smart edge of ericsson. Sgsns and ggsns use the gn interface in the communication between each other.
Yateucn is easy to operate and manage remotely using the yate mobile management interface mmi online. Gc interface between ggsn and hlr is used by ggsn to query users location and profile to update its location register. Ggsn was therefore added to the mobile core network as a gateway to connect the gprs network to the external data world. Ericsson sgsn architecture overview v1 5142010 free download as powerpoint. It communicates with mobile phones through ran and communicates with external networks through ggsn. The control plane is used to ensure availability of the transmission plane.
The gprs service charging can be based on the following parameters. Feb 15, 2016 in our previous article, we had focused on the network platform for network functions virtualization opnfv, mainly covering the virtual infrastructure and the corresponding manager that support network functions virtualization nfv. Through simple software upgrades, cisco ggsn can support future 3gpp access technologies, protecting your investment as the network evolves to nextgeneration access technologies. Contribute to moiji mobileggsn pgw development by creating an account on github. In the case of the yateucn unified core network the yate software implements the functionalities of 2g3g4g core networks in a single server. Gprs architecture works on the same procedure like gsm network, but, has additional. Srx1500,srx4100,srx4200,srx5400,srx5600,srx5800,vsrx.
This data network overlaps a secondgeneration gsm network providing. Subscriber and serviceaware service steering capability to promote tiered policies. It provides connectivity to the sgsn serving gprs support node and pdn packet data network. This means it prevents unauthorized users from accessing the network. When used between plmns it is known as the gp interface. Paul smith director member technical staff 5g, software. For simplicity, the gb interface between the sgsn and the bsc is represented in the diagram on the sgsn only. Software engineering and project planningsepm data mining and warehousedmw data analyticsda mobile communicationmc. Serving gprs support node sgns gateway gprs support node ggns these two modesare comparable to mdis in cpdp. The gateway gprs support node ggsn acts as interface between the gprs backbone and the external packet data network pdn. Gr interface between sgsn and hlr is used to get the user profile, the current sgsn address and the pdp addresses for each user in plmn. The primary goal of our proposed architecture is to build a modular, compatible, and flexible software that supports sm functions.
Gprs network interfaces um,gb,gn,gp,gi,gr,gc,gf,gd,gs. On the other side the sgsn relays the data between the sgsn and relevant ggsn and vice versa. The configuration of li in the ggsn is depicted in figure 8. Ericsson launches industrys most sophisticated core. Some modifications may be required to the bts, but often only a software. Short for service gprs support node, it mediates access to network resources on behalf of mobile subscribers ms and implements the packet scheduling policy between different qos classes. To allow the gprs network to provide the packet data capability additional network entities are required to be added to the overall architecture two of the main entities are the ggsn and sgsn. Sgsn integration and implementation papanash om prakash muthuswamy the goal of this thesis project is to implement a prototype for serving gprs support node sgsn which is the central part of the general packet radio service gprs. From a network architecture point of view, ggsn is situated between the serving gprs support node sgsn and the external data networks such as the internet and x. It stores routing informations and maps the imsi to a pdn address.
Ggsn is listed in the worlds largest and most authoritative dictionary database of abbreviations and acronyms the free dictionary. It converts the gprs packet coming from the sgsn into proper packet data protocol pdp format i. Gprs tunnelling protocol is the defining ipbased protocol of the gprs core network. Your guide to gprs network architecture mobile packet. The integrated network comprises the primary architectural elements.
Functionally, no hardware impact occurs to the base transceiver systems bts. Ipbased transport of user data between sgsn and the utran ip or ss7based signaling transport gateway gsn ggsn gateway for umts packet service to external data networks e. The sgsn is the service access point to the gprs network for the mobile user. Gprs provided a packet data capability for the 2g cellular systems, enabling the evolution of gsm to provide a data capability. The ugw is a huawei proprietary unified packet gateway.
Serving gprs support node sgsn gateway gprs support node ggsn. Gprs architecture ll general packet radio service ll sgsn, ggsn,gprs network explained in hindi. To do all this,the ggsn keeps a record of active mobile users and the sgsn the mobile users are attached to. This page covers gprs network interfaces used in transmission plane and control plane. Interface mapping an overview sciencedirect topics. It allows mobile users to access text based data services. Within the same gprs network, sgsnsggsns are connected. Definition, long form, meaning and full name of ggsn. Modulos gateway gprs support node ggsn is a readytodeploy software solution, which can function as sgsn or ggsn in a gprs, edge or umts network. It converts the gprs packet coming from the sgsn into proper packet. Sgsn to ggsn gn and ggsn topdn gi interface on globalspec.
Transmission plane provides means for exchange of the user data. The interplmn dns communications interface used by the sgsn to find a ggsn. Core architecture an overview sciencedirect topics. Gateway gprs support node ggsn the gateway gprs support node acts as an interface and a router to external networks. Gprs architecture mobile communication notes explaining. Sgsn and ggsn are two new network elements required for supporting gprs services. Likewise, the gn interface between the sgsn and the ggsn is shown on the ggsn only.
Our design goals are to achieve compatibility, modularity, and. The ggsn, gateway gprs support node is one of the most important entities within the gprs network architecture. Ericsson sgsn architecture overview v1 5142010 network. Gprs architecture ll general packet radio service ll sgsn,ggsn. In addition, the sgsn performs security functions and access control for the users. In the gprs architecture, an sgsn connects to a ggsn, which acts as the point. Optional support for direct tunnel and ciscos fastpath architecture helps improve the. This includes the sgsn s ip address and subnet mask and whether or not the sgsn is on a foreign plmn. The sgsn ggsn interface when used within a single plmn is known as the gn interface. A software architecture for gprs session management. Gsm, umts 3g slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The general packet radio service gprs, a data extension of the mobile telephony standard gsm is emerging as the first true packetswitched architecture to allow mobile subscribers to benefit from highspeed transmission rates and run data applications from their mobile terminals.
To do all this,the ggsn keeps a record of active mobile users and the sgsn. International mobile equipment identifiersoftware version imeisv retrieval. The ggsn organises the interworking between the gprs edge network and. Mvnos need our network equipment yateucn as a gmsc, ggsn, pgw and yate hsshlr because of the flexibility given by the features included in the yate software and the use of offtheshelf hardware. The ggsn refers to gateway gprs support node, it provides internetworking between the gprs network. Aug 25, 2014 mobile telecommunications product, huawei ggsn sodtware and hardware overview. On the other side the sgsn relays the data between the sgsn and relevant ggsn. Short for service gprs support node, it mediates access to network resources on behalf of mobile subscribers and implements the packet scheduling policy between different qos classes. Performance and architecture of sgsn and ggsn of general. This means the mvno platform has core network equipment and uses the ran of an mno. Implement network changes including any hardware, software and external interface changes. Two new components, called gprs support nodes gsns, are added. It is responsible for establishing the packet data protocol pdp context with the ggsn.
Support for true realtime data charging of subscription in home and roamed network. Full mvno architecture hsshlr, gmsc, ggsn, pgw and smsc. This interface is named gp interface in case the sgsns exist in different plmn than the ggsns. There is also a new database called gprs register which is located with hlr. Gsmgprs network interfaces gsm network interfaces connect between different elements in the 2g gsm mobile communication network, which is based on the ss7 protocol stack. Gsm explain gsm architecture with a neat block diagram. Ii gsn functionality as we said, gsn node is consisted of sgsn and ggsn. An mvno architecture has its own hsshlr, gmsc, ggsn, pgw, and smsc. The evolved packet core portfolio includes sgsn mme and mobile packet gateway software upgrades of the existing sgsn and ggsn products respectively and the new converged. Open source packages for network functions virtualization. Objectives upon completion of this chapter, you should be able to describe the sgsn to ggsn interface. Short for gateway gprs support node it is the gateway between the gprs general packet radio service wireless data network and other external packet data networks such as radio networks, ip networks, or private networks.
Can nfv be learnt separately without sdn and if yes please. In the network architecture, sgsn sits between radio access network ran and gateway gprs support node ggsn. Ggsn gateway gpsr support node is the mobility anchor point within the mobile packet core network. If it is, the ggsn forwards the data to the sgsn serving the mobile user, but if the mobile user is inactive, the data are discarded. In addition, cisco ggsn gateway gprs support node offers. Setting up native ipv6 umts access with opensource ggsn. It contains routing information for gprs mobiles, which is used to tunnel packets through the ip based internal backbone to the correct serving gprs support node. Sgsn may provide additional iri, such as location, depending on the sgsn software release, but it is not mandatory for the interception to work. Session state information of the subscriber is always maintained at the ggsn. The test of interworking with the gateway gprs support node ggsn is conducted to check whether the data for the interworking between the sgsn.
It includes um,gb,gn,gp,gi,gr,gc,gf,gd and gs interfaces. Performance and architecture of sgsn and ggsn of general packet. In this article, we will focus on open source options that are available for building different virtual network functions. Umts system architecture and protocol architecture overview on overall system architecture umts network architecture and elements mobile station highlevel functions. The sgsn sgsn interface is used in roaming only when interplmn hand over is supported.
Figure 5 shows the sm software architecture for the sgsn. Pgwggsn for mvnos to stay ahead of competition leissner. The ggsn, gateway gprs support node is one of the most important entities within the gsm edge network architecture. It is used by mobile operators as the interface between the internet and the rest of the mobile network infrastructure. Looking for online definition of ggsn or what ggsn stands for. Jan 26, 2017 sgsn information optional the ggsn can be configured with information about the sgsn s that it is to communicate with. Bsc, the base station controller bsc requires a software upgrade and the. Nfv is not something you will learn from a course, it is an architectural concept related to networks. The ggsn also collects charging information connected to the use of the external data networks and can act as a packet filter for incoming traffic.
Primarily it is the protocol which allows end users of a gsm or wcdma network to move from place to place while continuing to connect to the internet as if from one location at the gateway gprs support node ggsn. This information is gathered in socalled charging data records cdr and is delivered to a billing gateway. Gprs network interfacesum,gb,gn,gp,gi,gr,gc,gf,gd,gs. Performance and architecture of sgsn and ggsn of general packet radio service gprs. Utilizing openflow, sdn and nfv in gprs core network.
The sgsn and ggsn register all possible aspects of a gprs users behavior and generate billing information accordingly. Gprs support node sgsn and gateway gprs support node ggsn. A unified gsm and lte core network that implements in software the functions of gmsc, ggsn. The gsm contains most of the necessary capabilities to support packet transmission over gsm. The ggsn organises the interworking between the gprs network and external packet. Gprs architecture ll general packet radio service ll sgsn.