By Christopher Cox
Following on from the winning first version (March 2012), this ebook offers a transparent clarification of what LTE does and the way it really works. The content material is expressed at a platforms point, supplying readers the chance to know the most important elements that make LTE the new subject among owners and operators around the globe. The ebook assumes not more than a easy wisdom of cellular telecommunication structures, and the reader isn't really anticipated to have any prior wisdom of the complicated mathematical operations that underpin LTE.
This moment version introduces new fabric for the present country of the undefined, corresponding to the hot beneficial properties of LTE in Releases eleven and 12, significantly coordinated multipoint transmission and proximity providers; the most brief- and long term recommendations for LTE voice calls, particularly circuit switched fallback and the IP multimedia subsystem; and the evolution and present nation of the LTE industry. It additionally extends the various fabric from the 1st version, corresponding to inter-operation with different applied sciences reminiscent of GSM, UMTS, instant neighborhood zone networks and cdma2000; extra positive factors of LTE complex, particularly heterogeneous networks and site visitors offloading; information delivery within the developed packet middle; assurance and ability estimation for LTE; and a extra rigorous therapy of modulation, demodulation and OFDMA. the writer breaks down the method into logical blocks, by way of firstly introducing the structure of LTE, explaining the
techniques used for radio transmission and reception and the general operation of the approach, and concluding with extra really good themes equivalent to LTE voice calls and the later releases of the requisites. This methodical technique permits readers to maneuver directly to take on the standards and the extra complex texts with confidence.
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Following on from the profitable first version (March 2012), this ebook provides a transparent rationalization of what LTE does and the way it really works. The content material is expressed at a platforms point, supplying readers the chance to understand the major elements that make LTE the new subject among proprietors and operators around the globe.
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Additional resources for An Introduction to LTE: LTE, LTE-Advanced, SAE, VoLTE and 4G Mobile Communications
This is different from the behaviour of UMTS and GSM, in which the network only sets up an IP connection on request and tears that connection down when it is no longer required. Unlike the internet, the EPC contains mechanisms to specify and control the data rate, error rate and delay that a data stream will receive. There is no explicit requirement on the maximum time required for data to travel across the EPC, but the relevant specification suggests a user plane latency of 10 ms for a non-roaming mobile, increasing to 50 ms in a typical roaming scenario .
Instead, most cdma2000 operators decided to switch to LTE. Introduction 17 That left a situation where there were two remaining routes to 4G mobile communications: LTE and WiMAX. Of these, LTE has by far the greater support amongst network operators and equipment manufacturers, to the extent that several WiMAX operators have chosen to migrate their networks over to LTE. Because of this support, LTE is likely to be the world’s dominant mobile communication technology for some years to come. 4 The Meaning of 4G Originally, the ITU intended that the term 4G should only be used for systems that met the requirements of IMT-Advanced.
The 36 series is devoted to the techniques that are used for radio transmission and reception in LTE and is an important source of information for this book. 5 3GPP specification series used by UMTS and LTE Series Scope 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 High-level requirements Stage 1 service specifications Stage 2 service and architecture specifications Non-access stratum protocols WCDMA and TD-SCDMA air interfaces and radio access network Codecs Data terminal equipment Tandem free operation of speech codecs Core network protocols Programme management UICC and USIM Operations, administration, maintenance, provisioning and charging Security UE test specifications Security algorithms LTE air interface and radio access network Multiple radio access technologies Introduction 19 specifications are the relevant ones.
An Introduction to LTE: LTE, LTE-Advanced, SAE, VoLTE and 4G Mobile Communications by Christopher Cox