The highlevel network architecture of lte is comprised of following three main components. A simple model that regresses lte download throughput on. System and method for automatic discovery of topology in an lte sae network. When it comes to lte, how fast your smartphone can download and upload data often depends on where you are. To access the 4g network and other functionalists of 4g, a phone should be lte enabled and along with other features for 4g. More lte networks were deployed globally during 2010 as a natural. Simulation comparison between lte and wifi in networks. Troubleshooting guide for rssi, rx level and vswr alarms flexi multiradio items needed test phone with test software. It is named the clustercellular or, in other words, it is known as a ring topology. Sep 26, 2018 lte optimization notes download abdul. Here, we break down the differences between 4g and lte. This will decrease traffic load on the lte network. But most of the phones and network supports lte network for data only.
Mobile data traffic an overview sciencedirect topics. Its easy for anyone to create beautiful looking network diagram in minutes. Is the main junction between the radio access network and the core network. You can edit this network diagram using creately diagramming tool and include in your reportpresentationwebsite. 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. We give an overview of the lte network topology before describing our measurement data. Follow the posts below to track our progress and learn what it takes to build an lte network. Cn rnc iu cn core network rnc radio network controller. This keeps information about the users phone number, home network identity and security keys etc.
Lte uses ofdma in the downlink, it utilizes channel resources effectively. The epc functions as the intelligence, policing and directing communication over the network. Mobile network connection speeds will increase more than threefold by 2020. The eps architecture is made up of an epc packet core network, also referred as epc and an eutran radio access network also referred as lte. Our zeroepc solutions for smaller and closed networks. Implementing lte wan backup with cisco rv34x series routers. Design, dimensioning, and optimization of 4g5g wireless. The backbone network requires g652 optical cable along 85 km with a ring topology and wdmstm64. To be able to move on to other lte technical documents that follow, fundamental understanding of the entities and interfaces of the eps system is required. An lte network would simply be a redesign of what was currently in place, so the cost was relatively low.
Mme is the single most control point in the epc and responsible for most of the control plane functions. Synchronization distribution architectures for lte networks. Edraw is an easy to use network diagram software accompanied with readymade network diagram templates that make it easy for anyone to create beautiful and professionallooking network diagram for ms powerpoint. Lte network getting popular because of its high speed for data as compared to the generations 3g and 2g. Difference between wcdma and lte compare the difference.
Feb 07, 2011 gsm network topology description using rf optimization tool optpcs. The concept of lte advancedbased heterogeneous networks is about improving spectral efficiency per unit area. It resides out of the lte network and connected to pdn gateway through sgi interface. It is linked to the server through a bidirectional link. System and method for automatic discovery of topology in an lte sae network us669,311 active 20300316 us8972588b2 en 20091218. The core network, known as the evolved packet core epc, plays a signi. Index terms4g mobile communication, wireless mesh net works, network topology. Store ue contexts, for example bearer service parameters and routing information. Redline is currently working on several ilte projects, so were able to show you real data as we go. Ip core includes 10gbps core routers and switching.
In telecommunications, longterm evolution lte is a standard for wireless broadband communication for mobile devices and data terminals, based on the gsmedge and umtshspa technologies. Jul 10, 20 the lte network architecture explained in this document applies to a lte only network provided by a single operator and thus has covered the most basic components of the eps system. Bus topology is a network type in which every computer and network device is. This address was provided to the cisco router directly by the lte router from the isp. Since we need to compare wifi and lte under the same condition, we need to set it like wifi. Ims ip multimedia subsystem is a standalone system.
A usim stores userspecific data very similar to 3g sim card. Also, the application configuration in lte topology has to edit the value same as table 2. May 25, 2020 wireless standards are confusing it doesnt matter if youre talking about 4g, lte, or others. Satellite and solutions researchgate, the professional network for scientists. Fundamentals of network planning and optimisation 2g3g4g. Convert lte to volte conversion need to install volte apps. But if your phone is tied to verizons lte network, theres a pretty good chance your. Wcdma was specified in the 3gpp release 99 and 4 of the specification, while lte was specified in the 3gpp release 8 and 9. The lte network called eps evolved packet system is an endtoend e2e all ip network. An example of the 4gran ring topology is shown in figure 1. Lte advanced is a mobile communication standard and a major enhancement of the long term evolution lte standard. Jul, 2011 what is the difference between wcdma and lte. Wireless mesh backhauling for lteltea networks eurecom. Advantages of lte disadvantages of lte long term evolution.
Fixed a bug with resolving ips and names version 2. Implementing lte wan backup with cisco rv34x series. What upload and download speed does your network support. According to different service requirements, fiberoptic cable availability and network resource allocations, ran real time and nonreal time resources can be deployed on the site or on the access cloud side. Tdd lte fdd lte lte macro stations cumulative units source. Dec 20, 2016 network topology types with diagrams what is topology network topologies describe the ways in which the elements of a network a. Types of network topology in computer networks studytonight. As new generations of mobile telecommunication networks are developed 4g and 5g, we. Lte long term evolution, as used by the mobile carrier market is reaching a widely used, somewhat mature state. Qos performance evaluation of voice over lte network. Apr 01, 2015 for network bandwidth purposes, a lte tdd networks spectrum can be further divided to optimize for the type of network traffic half up and half down, mostly down and a bit up, mostly up and a. The ratio between uploads and downloads on a ltetdd network can be changed dynamically, depending on whether more data needs to be sent or received.
As both cdma and gsm had reached a plateau of sorts regarding data speed transmission, lte. Radio access network topology planning for the 4g networks. A network diagram showing 4g lte network diagram ak 1. Our lte live project is underway and were excited to share with you some actual project details as we build this private lte network. Now that the lte router has been configured and the workstation is receiving an ispgenerated ip address, connect the lte mobile router directly to wan 2 port of the rv340 series router as shown in the backup internet topology section of this article. Due to backward compatibility issues with the existing lte modem firmware 1. We then describe how we perform controlled experiments for validating our. I have been searching around for a lte a network topology but not sure if was looking for a correct one i was given a hint by my lecturer, there shall be 5 vital hardwares in the network. Download scientific diagram system topology for lte simulation from. The radio protocol architecture for lte can be separated into control plane architecture and user plane architecture as shown below at user plane side, the application creates data packets that are processed by protocols such as tcp, udp and ip, while in the control plane, the radio resource control rrc protocol writes the signalling messages that are exchanged between the base station and. This document presents the lte network architecture as the first technical document of lte area. This paper describes the designing of fiber optic network as the lte backbone network in sleman. Network diagram templates for powerpoint edrawsoft.
For example, a user might be engaged in a voip call while at the same time performing web browsing or ftp download. Weve been testing mobile data speeds for 10 years now. Optimizing voip over lte can help your employees, customers, and it teams focus on the work at hand instead of the mechanics behind it. The wireless topology in sdn approach is separated into two planes named control plane and data plane. Wireless standards are confusing it doesnt matter if youre talking about 4g, lte, or others. Understanding the infrastructure characteristics such as the network topology.
Download edraw and view all templates in editable mode. Improvement of sctp congestion control in the ltea network. I would like to ask if the other 3 shall be enddevice,server,switch. This increases total user capacity of the lte network as different users utilize different channels to access the system. Our lte epc cores are highly scalable, high performance and resilient to ensure highest uptime and availability. Aug 03, 2012 since radio link performance is fast approaching theoretical limits with 3g enhancements and lte, the next performance leap in wireless networks will come from an evolved network topology.
It increases the capacity and speed using a different radio interface together with core network improvements. System topology for lte simulation download scientific diagram. Master lte with the help of an lte network diagram rcr wireless. How and when optimizing voip over lte can improve your network. Monitor, map, and analyze network topology, connectivity, and performance. It was formally submitted as a candidate 4g to itut in late 2009 as meeting the requirements of the imtadvanced standard, and was standardized by the 3rd generation partnership project in march 2011 as 3gpp release 10. It does not take much time for user to open the browser and download high bandwidth movie. Lte advanced is a mobile communication standard and a major enhancement of the long.
The bandwidth and delay of the download link are similar to those of the upload link. It also supports highspeed communication and low latency over radio access networks rans. Us20064100a1 system and method for automatic discovery. Routes data packets, maintains the data connection for interenodeb handovers, as well as, intersystem handovers between lte and gsmumts. Download scientific diagram simulated lte network topology models of lte network nodes are. Release notes for cisco 4g lte wireless wan ehwic cisco. Pcefpcrf, ips, probes, netflow, nbar, topology map, dos, ddos.
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