Physicalcommunication32010217244 219 table 1 lte,lteadvanced,andimtadvancedperformancetargetsfordownlinkdlanduplinkul. Scribd is the worlds largest social reading and publishing site. This paper provides an overview of the mac for 3gpp long term evolution lte also referred to as eutran, with a focus on the handset or user equipment ue. This, precisely, is the question that is addressed by thetraining on small cell deployment in a nutshell. Load balancing optimization in ltelte a cellular networks. This whitepaper presents an overview of the protocol stack for lte with the intent to describe where important. Lte radio utilization metrics that can be easily computed from network performance statistics available in commercial lte base station products. Towards lteadvanced an overview of the official 4g technology. Finally, we offer a short overview of the current, ongoing work on the evolution of lte toward lte advanced and the full imtadvanced capability. Would you like to learn about ericsson s exciting advanced lte features and the way forward for dense highcapacity networks. Lteu forum and coexistence overview welcome to mentor.
The evolution of mobile broadband broadband wireless. Type 1 uses frequency division duplexing uplink and downlink separated by frequency, and tdd uses time division duplexing uplink and downlink separated in time. 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. Lte is the mobile broadband technology of choice for mobile service providers around the world, powering 1.
This video talks about lte physical layer and lte air interface. The model also shows how scale affects costs across 10, 50 or 100 small cells deployed into a given market. The intergenerations dual connectivity dc between the 4g and 5g, named as ltenr, has got a lot of attention in 3gpp release 15 because such integration may help to guarantee 5g dedicated. 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.
Join us in this live virtual course to learn all about carrier aggregation, combined cell, ul and dl coordinated multipoint reception. In addition to this lte was required to support at least 200 active users in every 5mhz cell. Ericsson is a worldleading provider of telecommunications equipment. The leading book on 3gpp specifications for lte, lteadvanced, and lteadvanced pro covering up to and including release, written by ericsson engineers who are heavily involved in the development of 3gpp specifications. Ossrc, element manager and command line interface cli during a troubleshooting procedure.
Introduction the description given on the next pages can be applied to ericsson, nokia or other vendor. Ericsson unlike previous 3gpp wireless technologies, lte has no circuitswitched bearer to support voice, so carrying voice over lte requires a migration to a voice over ip voip solution commonly under the umbrella of ims. Physicalcommunication32010217244 219 table 1 lte, lte advanced,andimtadvancedperformancetargetsfordownlinkdlanduplinkul. Download pdf 4g, lteadvanced pro and the road to 5g download epub 4g, lteadvanced pro and the road to 5g. How are cells defined in lte if a single enodeb can serve. The protocol stack functions consist of the medium access control mac, radio link control rlc, packet data convergence protocol pdcp, and radio resource control rrc. This course examines the impactsdifferences of small cell. With 5g research progressing at a rapid pace, the standardization process has started in 3gpp. Pdf this article provides an overview of the lte radio interface, recently.
System parameters that control cell reselection and the operators channel frequency preferences are. Overview of lte airinterface figure 3 block diagram for dftsofdm an advantage for dftsofdm as a scfdma technique is that the numerology can match the ofdm downlink, with excellent spectral occupancy due to the ifft providing pulse shaping of the signal. The goal of lte was to increase the capacity and speed of wireless data networks. Mobile, one decade for a leap gsm, cdma amps tacs wcdma cdma2000 tdscdma wimax lte lte a 4. Lte is the latest mobile communications technology. The intergenerations dual connectivity dc between the 4g and 5g, named as lte nr, has got a lot of attention in 3gpp release 15 because such integration may help to guarantee 5g dedicated. Furthermore, ran radio access network roundtrip times shall be. We then provide a brief overview of the lte architecture and discuss the spectrum options and migration strategies for operators. The overview of the technologies used for 3g evolution in part ii of the book served as a foundation for the detailed discussion and explanation of the evolution steps taken for both hspa and lte. Protocol signaling procedures in lte radisys white paper 3 classify traffic streams using dpi and then, based on the operators policies, offload part of the traffic directly onto the internet while sending the remaining traffic to the core network. Australia telstra 2 x20 mhz, 18002600 mhz, ericsson 300 australia optus t dlte, 2x20 mhz, 2300 mhz, huawei t dlte, 4x20 mhz, 2300 mhz, huawei 160 520.
This article provides an overview of the lte radio interface, together with a more indepth description of its features such as spectrum flexibility, multiantenna transmission, and intercell interference control. It increases the capacity and speed using a different radio interface together with core network improvements. This can simplify the deployment of small cells, for example, and be. Finally, we offer a short overview of the current, ongoing work on the evolution of lte toward lteadvanced and the full imtadvanced capability. Mar 20, 2016 this video talks about lte physical layer and lte air interface. This paper gives an overview of the long term evolution lte of the universal mobile telecommunication system umts, which is being developed by the 3rd generation partnership project 3gpp. Lte stands for long term evolution and it was started as a project in 2004 by telecommunication body known as the third generation partnership project 3gpp. Sae system architecture evolution is the corresponding evolution of the gprs3g packet core network evolution. Jan 16, 2011 the presentation on lte long term evolution slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you want to know what lte sae long term evolution system architecture evolution is, this course will give you an overview of the new radio technology and protocols involved in the eutran evolved utran, also referred to as lte and the architecture behind. Download product flyer is to download pdf in new tab. Wireless supertowers connect rural areas with mobile broadband. The term lte is typically used to represent both lte and sae.
What are the fundamental considerations you would keep in mind while deploying small cells. Targets were also set for the latency in ip packet delivery. Lte presentation ppt free download as powerpoint presentation. In ltea each cc to be aggregated appears as a separate cell idearfcn to the mobile unit two types of serving cells are defined for ca enb pcc scc pcell scell ue a primary serving cell pcell i s the cell in which the ue either performs the initial connection establishment procedure or initiates a connection reestablishment procedure. Dec 22, 2019 according to 3gpp a cell is a carrier on a sector. If you continue browsing the site, you agree to the use of cookies on this website. Lte radio load versus user throughput semantic scholar. Lte a can aggregate up to 5 carriers to make up to 100 mhz 4. For an in depth description of lte, the read er is referred to. The 3gpp evolution for the 3g mobile system created the new base station system, called evolved umts terrestrial radio access network eutran and a new core network, called evolved packet core epc as a result of two standardisation projects.
Lte stands for long term evolution and is a registered trademark owned by etsi european telecommunications standards institute for the wireless data communications technology and a development of the gsmumts standards. Therefore, most telecommunication equipment vendors like ericsson, nokia. Supertower successfully trialed in maine, using ericsson radio system to offer highspeed lte with streaming video bostonbased startup altaeros has demonstrated a. Would you like to learn about ericssons exciting advanced lte features and the way forward for dense highcapacity networks.
This is followed by a set of simulation results, exemplifying the performance of lte. Wireless supertowers connect rural areas with mobile. Ericsson 4g ran training consists of the lte architecture and explains 6000 series enodeb. A primary serving cell pcell i s the cell in which the.
Lte is the major technology for future mobile broadband convergence of 3gpp and 3gpp2 technology tracks convergence of fdd and tdd into a single technology track. Each scenario includes different variables, such as type of small cell, backhaul type fiber or microwave, backhaul speed, labor and installation, power and ancillary costs for other equipment. The authors of the book all work at ericsson research and are deeply involved in 3g development and standardisation since the. A base station, called a enodeb in 3gpp, may support multiple carriers on multiple sectors and may actually be assembled from multiple radio sites. Lte offers high bandwidth connectivity with predictable latency. If you are just starting with 3gpp lte or you have some experience with wireless technologies, our lte tutorials will help you to understand the next. Spidercloud small cell networks cellular solutions corning. Cavalcanti abstractthe dual connectivity dc technology has gained a lot of momentum in the. Our small cell system architecture enables mobile operators to deliver reliable mobile services to enterprises and venues.
Evolution lte, the subject of this book, is a key enabling technology for delivering mobile broadband. However, other nations and companies do play an active role in the lte project. Lte a an overview and future research areas shihab jimaa college of engineering, khalifa university of science, technology and research u. It has explained following topics in the same order as given below. The cell edge user throughput is defined as the 5% point of the cumulative density function cdf of the user throughput normalized with the overall cell bandwidth.
Lte basic parameters this section will summarize the basic parameters of the lte. Key players affirmed networks, ericsson, huawei technologies, maveni. Also learn the troubleshooting and maintenance of the nodes. This paper provides an overview of the mac for 3gpp long term evolution lte also. Introduction to lte raj jain washington university in saint louis saint louis, mo 63. In this chapter we provide an overview of the evolution of mobile communication. The goal of lte was to increase the capacity and speed of wireless data networks using new dsp. Traffic offloaders typically will be deployed as bumpinthewire boxes between the. Dual connectivity for ltenr cellular networks roberto p. Lte tutorial free online lte training courses 3glteinfo free lte tutorials and training to get basic and in depth knowledge on various 3gpp long term evolution protocols and procedures.
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