Christopher Cox's An Introduction to LTE (2nd Edition) PDF

By Christopher Cox

ISBN-10: 1118818032

ISBN-13: 9781118818039

Following on from the winning first version (March 2012), this e-book provides a transparent rationalization of what LTE does and the way it really works. The content material is expressed at a structures point, providing readers the chance to understand the foremost components that make LTE the recent subject among proprietors and operators around the globe. The booklet assumes not more than a uncomplicated 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.

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4 Communication Protocols In common with other communication systems, UMTS and GSM transfer information using hardware and software protocols. The best way to illustrate these is actually through the protocols used by the internet. These protocols are designed by the Internet Engineering Task Force (IETF) and are grouped into various numbered layers, each of which handles one aspect of the transmission and reception process. The usual grouping follows a seven layer model known as the Open Systems Interconnection (OSI) model.

Firstly, they pass the user’s voice information and data packets between the base stations and the core network. Secondly, they control a mobile’s radio communications by means of signalling messages that are invisible to the user, for example by telling a mobile to hand over from one cell to another. A typical network might contain a few tens of radio network controllers, each of which controls a few hundred base stations. The GSM radio access network has a similar design, although the base station is known as a base transceiver station (BTS) and the controller is known as a base station controller (BSC).

Unfortunately, early 3G systems were excessively hyped and their performance did not at first live up to expectations. 5G systems around 2005. In these systems, the air interface includes extra optimizations that are targeted at data applications, which increase the average rate at which a user can upload or download information, at the expense of introducing greater variability into the data rate and the arrival time. 2 Third Generation Systems The world’s dominant 3G system is the Universal Mobile Telecommunication System (UMTS).

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An Introduction to LTE (2nd Edition) by Christopher Cox


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