About nmc consulting group nmc consulting group was. The path to lte will include many improvements to network elements in existing mobile networks. Lte s6as6d interface description 9106857001 revision a 10 2. Lte network architecture the highlevel network architecture of lte is. This sgsnmme 15 overview live virtual course provides to the participants an overview of sgsn mme implementation in packet core, its hardware and software architecture, different func tions and features. During the traffic migration from 2g3g to lte, the demand for the spgw capacity is expected to increase as lte provides higher spectrum efficiency compared to 2g3g. Several key differences in a lte network enable more flexibility in its architecture than in a 3g.
Lte refers to long term evolution, and the architecture of the lte network is as following, the enodeb is the 4g site that the ue connects to. A concatenation of policy decision function pdf and charging. Sae for lte access cs fallback in eps single radio vcc peak. There are few more components which have not been shown in the diagram to keep it. Sgsn selection procedure lte and beyond techblog on. Each one of them is built in a standard way described by. Sgsn administration guide, staros release 20 direct. Network architecture evolution node b rnc sgsn ggsn msc operators ip services e. The highlevel network architecture of lte is comprised of following three main components. With long term evolution lte comes a myriad of new and exciting attributes. Within an lte network, lte interfaces connect the various components to or within the core.
Longterm evolutionsystem architecture evolution lte sae marketed as 4g specified by 3rd generation partnership project 3gpp is new mobile ge neration supersedes the 3. All incoming and outgoing cs connections go through gmsc. Myung 2 beyond 3g international mobile telecommunications imt2000 introduced global standard for 3g. Pdf sgsn and ggsn are the two core network elements of the general packet radio service which. This is a quick reference guide which shows the mobile network architecture. The epc is the latest evolution of the 3gpp core network architecture. With lte users are alwayson ip connected to epc, whereas in 2g3g the users are. Eps is divided into two parts lte part which deals with the technology related to a radio access network eutran and epc part which deals with the technology related to a core network. The sgsn has been part of the packet core architecture since the first gsmgprs specification release in 1997. Lte long term evolution or the eutran evolved universal terrestrial access network, introduced in 3gpp r8, is the access part of the evolved packet system eps. Ggsn and the serving gprs support node sgsn with umts and gsm.
Gprs tunnelling protocol is the defining ipbased protocol of the gprs core network. Lte 4g network architecture lte core network mobile. Mar 29, 2015 serving gprs support nodesgsn serving gprs support nodesgsn is one of the gprs support node routing the packet switched data to and from the ms mobility management location management authentication and charging for calls stores the location information of the user users profile 10. Your guide for pdp context activation procedure in 3g. The evolved umts terrestrial radio access network eutran. Core architecture an overview sciencedirect topics. Allip, simplified network architecture new, allip mobile core network introduced with lte endtoend ip allip clear delineation of control plane and data plane simplified architecture. Sgsnmme 16a can be deployed both as a native node as well as virtual network function. 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. There are only two nodes in the sae architecture user plane. Lte long term evolution is known as the evolution of radio access technology conducted by 3gpp.
Ltesae network architecture subsystems ltesae architecture is driven by the goal to optimize the system for packet data transfer. In view of the far greater number of applications and facilities that it can perform, the decision was made to call it a user equipment rather than a mobile. The radio access network will evolve to eutran evolved umts terrestrial radio access network, and the correlated core network will evolved to sae system architecture evolution. Sgsn mme supports modern mobile networ ks with new and enhanced functionalities for gsm, wcdma, and lte accesses. Pdf voice communication over ggsnsgsn researchgate. Its basis stands in the gsmedge and umtshspa network technologies, with changes in terms of an increased capacity and higher speed by simplifying the core network and using a different radio interface.
Mobile class targets 100 mbps with high mobility and nomadic local area class targets 1 gbpswith low. Lte architecture, lte system architecture, lte components this page offers information about long term evolution lte, its architecture and components. The yatehsshlr includes a home location register hlr, an authentication center auc 2g3g and a home subscriber server hss 4g lte. Yatehsshlr lte, gsm and wifi subscriber server for mno and. This means that eps data used for lte can also be applied to gsmgprs and wcdmahspa. Policy and charging rules function pcrf in lte epc core. The sgsn or serving gprs support node element of the gprs network provides a number of takes focussed on the ip elements of the overall system. The user equipment or ue is a major element of the overall 3g umts network architecture. In this network, the base terminal station btsnodebs aggregate the radio access network ran traffic and transport it over a mobile. The main requirements for the new access network are high spectral efficiency, high peak data rates, short round trip time as well as flexibility in frequency and bandwidth.
Pdf mobile interface 3gpp interfaces description general. System architecture evolution sae is the core network architecture of 3gpps lte wireless communication standard. It describes the role of the enodeb in the network and key concepts such as. Network architecture for lte architecture for user plane traffic cost efficient 2 node architecture fully meshed approach with tunneling. Systems beyond imt2000 imtadvanced is set to introduce evolutionary path beyond 3g. Lte architecture and interfaces overview telecom hub. The long term evolution standard lte is a wireless communications, highspeed data standard for mobile phones and data terminals. The part of the network that is accessed via the sgsn is often referred to as the ps domain. Network architecture for lte and wifi interworking 1. Each interface described here is taken from the 23. Beyond the initial deployment of a common set of subscriber data for all accesses, deploying the s4sgsn also allows the use of the hss for handling subscriber data for all accesses, not only lte. It does this by carrying the subscribers data from the subscribers current serving gprs support. Base station subsystem gprs protocol control plane.
Similarly, the rnc block includes the nodeb and the sgsn components that are part of the 3g umts network. Serving gprs support nodesgsn serving gprs support nodesgsn is one of the gprs support node routing the packet switched data to and from the ms mobility management location management authentication and charging for calls stores the. Interface between mscvlr and sgsn gsinterface for gprs. System architecture evolution sae is the core network architecture of 3gpps lte wireless communication standard sae is the evolution of the gprs core network, with some differences. S1u s1c s11 sgs s3 gs gn iucs iups s5 s4 sgi lte interface gi ip lte core umts3g. Jul 27, 2017 lte long term evolution is known as the evolution of radio access technology conducted by 3gpp. Lte architecture ip multimedia subsystem computer network. Oct 22, 2018 your guide for pdp context activation procedure in 3g october 22, 2018 september 29, 2019 mohamed salem session management for the ms to be able to send and receive data to and from the pdn, which is the network the ms would like to connect to, the ms should establish a pdp with the ggsn. This course is designed to provide an overview of ericsson sgsn mme. Call flow is how signaling and sessions are created across an lte. In fact, call flow and signaling is unique for lte, and is driven by 3gpp standards. Confidential reliance jio infocomm limited 1 2g, 3g and lte network architecture lte has a flat architecture. Interfaces allow the mme, sgw and pgw to cooperate with other network elements e.
Mobile interface 3gpp interfaces description general map saelte map book pdf available. Sae is the evolution of the gprs core network, with some differences. Comparision of 3g wireless networks and 4g wireless networks. Dec 01, 2018 lte refers to long term evolution, and the architecture of the lte network is as following, the enodeb is the 4g site that the ue connects to. Sgsnmme supports modern mobile networ ks with new and enhanced functionalities for gsm, wcdma, and lte accesses. This paper will concentrate also to describe the main functions of the most important network elements. Comparision of 3g wireless networks and 4g wireless. Network architecture for lte and wifi interworking.
In this network, the base terminal station btsnodebs aggregate the radio access network ran traffic and. Increased bandwidth endtoend ip simplified architecture. This course is designed to provide an overview of ericsson sgsnmme. The network architecture for gsm edge was basically the same as that used with gprs sgsn network entity. It is all ip network and is based on packet switching for voice as well as data unlike 2g3g where it. No circuit switched components new approach in the interconnection between radio access network and core network imspdn epc eutran lteue. Ltesae architecture and concepts have been designed for efficient support of. Subnetworkdependent convergence protocol mapping, segmentation. The evolved packet core communicates with packet data networks in the outside world such as the internet, private corporate networks or. This article looks at the evolved packet core epc, the core network of the lte system, giving an overview of the architecture of the core network, describing some of its key elements. Geranutran roaming architecture with gngp sgsn connected to pgw pdn packet data network gateway.
Back in those days, it was introduced to support the brand new service called gprs, which was and still is the packet data connectivity service of gsm. Sgsn mme 16a can be deployed both as a native node as well as virtual network function. A functional representation of 3g network architecture is shown in figure 1. Architecture typique dun reseau 3gumts etendu vers 4glte. The yatehsshlr exports a json api for integration with any sim management and crm systems. Longterm evolutionsystem architecture evolution ltesae marketed as 4g specified by 3rd generation partnership project 3gpp is new mobile ge neration supersedes the 3.
Just as with s6a, the ietf diameter protocol is used over s6d, eliminating the need for the sgsn to support ss7map signaling towards the. The snaptr procedure for finding the old sgsn services and interfaces from the ptmsi is started with service parameters of x3gppsgsn. In gsm, the architecture relies on circuitswitching cs. However it is essentially the handset in the broadest. The lte network called eps evolved packet system is an endtoend e2e all ip network. Sgsnmme supports modern mobile networks with new and enhanced functionalities for gsm, wcdma and lte accesses. Umts system architecture and protocol architecture overview on overall system architecture umts network architecture and elements mobile station. It is all ip network and is based on packet switching for voice as well as data unlike 2g3g where it is circuit switch for voice and packet switch for data. Nokia siemens networks lte 1800 mhz introducing lte with. Key words long term evolution, lte, umts, hspa, flat architecture 1. Umtsgprs system overview from an ip addressing perspective.
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