Physicalcommunication32010217244 219 table 1 lte,lteadvanced,andimtadvancedperformancetargetsfordownlinkdlanduplinkul. Introducing lte advanced pdf 36p 4g wireless systems lte technology pdf slides 82p the evolution to 4g cellular systems lte advanced pdf 28p lte the future of mobile broadband technology pdf 19p summary introduction to wireless lte 4g architecture and key business implications pdf 78p antenna design considerations for lte mobile. Both wimax and lte are allip, all packet technology with a packet network core. Massive mimo is often mentioned as a key 5g technology, but could it also be exploited in currently standardized lte networks. The standardization of lteadvanced, which is an enhanced version of lte, is currently in progress at the 3gpp. 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. Lteadvanced release specifies technologies to achieve twodimensional radio base station antenna port mapping. Long term evolution lte is based on mimoofdm and continues to be developed. Lte tdd which is also referred to as td lte provides the long term evolution path for tdscdma based networks. Nov 26, 2007 globecom 2007 tutorial mujtaba, winters 16 lte high level requirements standardization effort for lte was launched in nov 2004 expected to complete in 1h2008 peak data rate 100mbps in 20mhz in the downlink with 2x2 mimo 50mbps in 20mhz in the uplink without mimo control plane latency. The schemes employed in lte again vary slightly between the uplink and downlink. Introducing lte advanced pdf 36p 4g wireless systems lte technology pdf slides 82p the evolution to 4g cellular systems lte advanced pdf 28p lte the future of mobile. The standardization of lte advanced, which is an enhanced version of lte, is currently in progress at the 3gpp.
Systems beyond imt2000 imtadvanced is set to introduce evolutionary path beyond 3g. Lte has introduced a number of new technologies when compared to the previous cellular systems. Long term evolution lte tutorials lte video tutorial. An outlook of the evolution of lte toward lte advanced and full imtadvanced capabilities complete the article. Lte is based on the gsmedge and umtshspa technologies. Tutorial 4g lte rf planning monte carlo capacity simulation. The radio protocol architecture for lte can be separated into control plane architecture and user plane architecture as shown in figure 3 and figure 4. Lte the umts long term evolution from theory to practice second edition stefania sesia stericsson, france issam toufik etsi, france matthew baker alcatel. Lte increases the capacity and speed of wireless mobile communication by using a different. Nevertheless, both camps have plans for the future of their technology as shown by the rightmost part of. The term lte is typically used to represent both lte and sae. The lectures also cover channel mapping and ue categories. This tutorial will give you enough understanding on lte technology from where you can take yourself at higher level of expertise.
This section contains free ebooks and guides on 4g lte, some of the resources in this section can be viewed online and some of them can be downloaded. Ltea an overview and future research areas shihab jimaa college of engineering, khalifa university of science, technology and research u. The main objective of the epc model is to provides means for the simulation of endtoend ip connectivity over the lte model. Mobile class targets 100 mbps with high mobility and nomadic local area class targets 1 gbpswith low. Huawei lte for rail technical white paper page 4 1. This application note describes the physical downlink structure of mimo in lte with two antennas. This tutorial has been designed for audiences with a need to understand the lte technology basics in very simple terms.
Lte basics lte tutorial part 1 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Numerical simulations are used to show the performance of the first release of lte, as well as assess the benefit of the key features. Extensions to mimo technology as well as comp technology are being studied. Issue briefs are designed for practitioners with limited time and a need to know about the latest industrybased knowledge. However, to ensure competitiveness in an even longer time frame, i. Multiple input multiple output mimo technologies introduced in lte such as spatial multiplexing, transmit diversity, and beamforming are key components for providing higher peak rate at a better. They enable lte to be able to operate more efficiently with respect to. Outline general introduction precoding and beamforming antenna design introduction to lte downlink and uplink physical layer reference signals and antenna ports mimo transmission schemes in lte codewords, layers, and streams tx diversity downlink su mimo.
The radio protocol architecture for lte can be separated into control plane architecture and user plane. Lte is a 4g wireless technology that verizon wireless and numerous leading wireless carriers have chosen as their upgrade path beyond 3g technologies. Mcw taken as a part of the whole system under various operation conditions have emphasized the merits of each scheme and led the two standards to develop in their own way. The main characteristic of this model is the fact that the fading evaluation during simulation runtime is based on percalculated traces. The lte module includes a tracebased fading model derived from the one developed during the gsoc 2010. An introduction to long term evolution lte by robert nibarger and mallorie teubner. 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. Introduction to nonlte radiative transfer and atmospheric modeling eugene h.
Indeed these contribute strongly to lte meeting its performance targets. This is done to limit the computational complexity of the simulator. To this aim, it supports for the interconnection of multiple ues to the internet, via a radio access network of multiple enbs connected to the core network, as shown in figure overview of the lteepc simulation model. The ns3 lte module by the lena project nicola baldo nicola. Checking that the whole lte model works properly validation tests validating simulation output against theoretical performance in a set of known cases valgrind test coverage systematically check for memory errors memory corruption, leaks, etc. Frequency division duplexing fdd and time division duplexing tdd both paired and unpaired. Understanding massive mimo and what it means for 5g. Special articles on lte advanced release standardization. This is followed by lectures that cover lte frequency bands, ofdm, ofdma, scfdma and lte signaling.
Jul 27, 2016 atoll equipment, sites, monte carlo capacity simulation,4g lte rf planning, tutorial 4g lte rf,using atoll. Essentially mimo, employs multiple antennas on the receiver and transmitter to utilize the multipath effects that always exist to transmit additional data, rather than causing interference. Extensive studies during both standardization processes on scw vs. Atoll equipment, sites, monte carlo capacity simulation,4g lte rf planning,tutorial 4g lte rf,using atoll. If you continue browsing the site, you agree to the use of cookies on this website.
Similarly, commercial lte networks are built for public use. Enhanced mimo influence on lteadvanced network performances article pdf available in elektronika ir elektrotechnika 221 february 2016 with 1,018 reads how we measure reads. Lte which is known as 4g technology is being specified in release 8 and 9 of the 3gpp standard. Ltelite evaluation board with easy access to relevant signals via a host of connectors and switches. Massive mimo, as you might guess, takes mimo technology and scales it up to hundreds or even thousands of antennas and terminals. Lteadvanced will maintain backward compatibility with lte, while realizing considerably higher spectral efficiency and celledge user throughput than lte. To ensure the competitiveness of umts for the next 10 years and beyond, umts long term evolution lte has been introduced in 3gpp release 8.
Outline general introduction precoding and beamforming antenna design introduction to lte downlink and uplink physical layer reference signals and antenna ports mimo transmission schemes in lte codewords, layers, and streams tx diversity downlink sumimo. Lte tdd which is also referred to as tdlte provides the long term evolution path for tdscdma based networks. The lte is the next major evolution step in mobile radio communication, introduced by 3gpp in release 8 and provides initially downlink dl peak data rates of. Lte as of release 8 supports mimo with up to four antennas. In radio, multipleinput and multipleoutput, or mimo is a method for multiplying the capacity of. Spatiotemporal coding for wireless communications pdf. In addition to ofdm, lte implements multipleantenna techniques such as mimo multiple input multiple output which can either increase channel capacity. Mumimo in lte systems article pdf available in eurasip journal on wireless communications and networking 201 january 2011 with 2,357 reads how we measure reads. This white paper summarizes these necessary improvements specified in 3gpp release. Abstract lte technologies for unlicensed spectrum are gaining both attention and momentum within various regulatory bodies european cept, us fcc, standards groups 3gpp, etsi and industry fora wifi. The user plane protocol stack between the enode b and ue consists of the following sublayers.
Carry the large majority of data and signaling messages across air interface. Myung 2 beyond 3g international mobile telecommunications imt2000 introduced global standard for 3g. Multiple input multiple out mimo schemes makes it possible for 4g lte to achieve 4 times the throughput for a specific bandwidth. This application note gives an introduction to lte technology, including both fdd and tdd modes of operation. Avrett harvardsmithsonian center for astrophysics july 2008 basic equations the speci c intensity of radiation i ergcm 2s 1sr 1hz 1 is the energy passing through unit area per unit time, per unit solid angle, and per unit frequency. 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. Lte advanced will maintain backward compatibility with lte, while realizing considerably higher spectral efficiency and celledge user throughput than lte.
Lte also supports both fdd frequency division duplex and tdd. Umts long term evolution lte technology introduction application note 1ma111 even with the introduction of hsdpa and hsupa, evolution of umts has not reached its end. To ensure the competitiveness of umts for the next 10 years and beyond, umts long term evolution lte is being specified in 3gpp release 8. Technical overview of 3gpp lte indian institute of. Pdcp packet data convergence protocol, rlc radio link control, and. Understanding the basics of mimo communication technology. Lte is the next generation of technology which is backward compatible with cellular technologies such as hspa,gsm,cdma etc. Ten paired and four unpaired spectrum bands have so far been. Advanced release standardization to respond to the traffic increases of recent years, 3gpp has been studying further enhancements for radio base stations. Introduction to non lte radiative transfer and atmospheric modeling eugene h. These antennas, attached to a base station, focus the transmission and reception of signal energy into small regions of space, providing new levels of efficiency and throughput. Lte includes an fdd frequency division duplex mode of operation and a tdd time division duplex mode of operation. Opnet lte simulation mobile communication systems are deployed as a natural evolution of gsm global system for mobile communications and umts universal mobile telecommunications system.
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