As an ofdma technology lte assumes small nominal guard band 10 %, excluding 1. Nokia siemens networks lte 1800 mhz introducing lte with. Lte air interface free download as powerpoint presentation. This course takes a look at the lte air interface and nonaccess stratum nas signaling operations used. Data transmission with an off the shelf cell phone up to 8mbps iperf with very limited range using two antenna for tx and rx proper.
Lte air interface signaling overview award solutions. Tight coupling of lte wifi radio access networks a. Lte in bullets pdf free download download long term evolution in bullets, 2nd edition free ebook pdf, epub, mobi by chris johnson. Architecture of the lte air interface wiley telecom books. Lte offers significantly higher packet data rates, enabling advanced multimedia applications and highspeed internet access. A detailed technical description of the air interface for lte radio access. With the introduction of lte came the development of a new radio technology based on ofdma scfdma. Written by experienced researchers and professionals, lteadvanced air interface technology thoroughly covers the performance targets and technology components studied by 3gpp for lteadvanced. Lte user equipment ue receiver performance has significant impact to cellular radio network coverage and capacity.
Protocol states and mobility one of the main lte advantages is minimizing number of states transitions that led to huge saving in processor load. Ltea meets and exceeds all requirements for 4g as specified in imtadvanced. It provides detailed description on lte radio interface, its structure. In the uncoordinated case it is 3gpp recommended practice that the center. Lte air interface adopts ofdma orthogonal frequency division multiple access for the downlink and scfdma singlecarrier frequency domain multiple access for the uplink. 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. Points covered include a detailed description of various components of the radio interface. Ltea can aggregate up to 5 carriers to make up to 100 mhz 4. Optimizing the lte air interface with rohde and schwarz.
Pdf lte air interface training manual figures figures fadi. Each interface described here is taken from the 23. Besides being an explanatory text about lteadvanced air interface technology, this book exploits the technical details in the 3gpp specification, and. Corning spidercloud services node 9000 4g lte air nterface technology spec sheet lan2318aen page 3 revision date 20180919 interfaces mounting physical and environmental leds 8 x gbps ethernet ports 2 x gbps sfp ethernet ports 1 x rj45 console port rs232 1 x 10100 management port 1 x tnc connector for gnss antenna 1ru standard 19in rack. Usually, after receiving a certain number of measurement reports, with the radio signal better from the target cell compared to the serving cell by a margin, the. It reveals the in depth information on lte air interface, in terms of technology, protocols and procedures. September 29, 2019 september 29, 2019 mohamed salem lte.
A simple experiment of demonstrating the power on the lte and wifi channel while downloading a file simultaneously through lte and wifi interface using the proposed lwip architecture is shown in figure 4. How to obtain lte air interface packet loss with respect. Lte air interface signaling overview e award solutions. It employs amc adaptive modulation and coding as well as a number of optional mimo multipleinput multipleoutput antenna techniques and interference management methods. Pdf lte air interface training manual contents tarek. This elearning course takes a look at the lte air interface and.
Following is one such example where we log the packet loss in each air interface into a separate file along with the event time. This white paper summarizes improvements specified in 3gpp release 11 with focus on the air interface. Within an lte network, lte interfaces connect the various components to or within the core. The result of these radio interface features is significantly improved radio performance, yielding up to five times the average throughput of hspa. The gsm air interface is described here, first in general terms, examining the channels used by the mobile and the network to establish communications, then with increasing detail, the procedures and messages exchanged between the peer layers of the gsm protocol stack. Lteadvanced remains the correct description for specifications defined from release 10 onwards, including 3gpp release 12.
Physical layer procedures such channel coding, modulation, ofdm, resource blocks, signaling procedures and scheduling both in ul and dl. Each one of them is built in a standard way described by. Description download atn420 mastering lte air interface v2. Lte ue receiver performance measurements white paper. Requirements of lte peak data rate up to 200 active users in a cell 5 megahertz less than 5 millisecond userplane latency 1. Interfaces allow the mme, sgw and pgw to cooperate with other network elements e. Openairinterface lte notes on a working oai lte project using the limesdr and target user equipment samsung galaxy s4 mini, mainly pointers to build guides used and summary of obstacles encountered. The lte network called eps evolved packet system is an endtoend e2e all ip network. Same radio interface schemes for both uplink and downlink ofdm and scfdma 2. Introduction in the current universal mobile telecommunications system umtshsxpa specifications, systems are capable of supporting high speed packet access for both downlink up to 14 mbps and uplink up to 5.
This course focuses on the lte air interface and provides a detailed analysis of the structure and features of the physical layer, as. The requirements and challenges will impact on the design of 5g air interface and the network. This factsheet provides an overview of the new lte air interface, its future. Development of the long term evolution lte air interface has been closely linked within 3gpp to the work on a new packetswitched system architecture initially called the system architecture. Lte air interface training manual contents contents 1 the air interface. It determines the maximum data throughput across the air interface between the lte base station enb, evolved node b and the mobile network subscriber ue, thus it determines the total capacity across the air interface. Lte mobile communicates with just one base station and one cell at a time and there are following two main functions supported by enb. Long term evolution lte is a leading contender for next generation broadband wireless networks, providing an evolution path for a variety of 3g wireless networks, such as umts and 1xevdo. Figure 4 a shows the initial power in the channel which is very low in both lte and wifi channel. The ebn sends and receives radio transmissions to all the mobiles using the analogue and digital signal processing functions of the lte air interface.
The original ibm pc 5150 the story of the worlds most influential computer duration. Lte air interface course description with the introduction of lte came the development of a new radio technology based on ofdma scfdma. Optimizing the lte air interface with rohde and schwarz by wray castle, 6 november 2017 the demand for mobile broadband services is putting increased pressure on lte mobile operators. The lte air interface physical layer offers data transport services to higher layers. The operator license can be shared highly efficiently between lte and gsm portions with the rf sharing solution. This includes ofdma principles, access and nonaccess stratum protocols, channel structures, connectivity and mobility management procedures along with radio link control functions. In lte, every interface between two network nodes, is having an interface name, that represents the protocols used in the communication between those nodes. Complete this form for a detailed course description course summary.
Lte air interface protocols request pdf researchgate. Lte and lte advanced wiley online books wiley online library. This document presents the lte network architecture as the first technical document of lte area. Ltelteadvanced for mobile broadband pdf, epub, docx and torrent then this site is not for you. Lte air interface packet loss can be logged into a single or a separate file and then be plotted as per your requirement. 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. It explains the rationales behind their differing mechanisms and implementations while exploring.
Lte is continuously worked on in terms of improvements. This course focuses on the lte air interface and provides a detailed analysis of the structure and features of the physical layer, as well as the layer 2 and 3 protocols, before explaining how these are used in the operation of the radio link from initial attach, through service delivery and. This course will cover the major aspects of the lte air interface in a manner that both technical and nontechnical people will be able to fully appreciate. Much of the lte standard addresses the upgrading of 3g umts to what will eventually be 4g mobile communications technology. 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. A comparative introduction to major global wireless standards, technologies and their applications. This book presents the technical characteristics of the two radio network interfaces of mobile 4g, lte and lte advanced, based on release 8, 9 and 10 of the 3gpp specifications. Overview of lte radio interface and radio network architecture for high speed, high capacity and low latency. Corning spidercloud services node 9000 4g lte air nterface. Download it once and read it on your kindle device, pc, phones or tablets. The physical layer is expected to perform the following functions in order to provide the. Radio protocols for lte and lte advanced pdf download.
Architecture and key features of lteadvanced networks. Pdf lte air interface training manual figures figures. This paper provides detailed coverage of the airinterface technologies and. Commonalities and difference in tdd and fdd tdd and fdd modes commonalities tdd and fdd modes differences regarding the air interface 1.
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