【資料名稱】：Essentials_of_LTE_and_LTE_A__The_Cambridge_Wireless_Essentia

【資料作者】：william webb Neul, Cambridge, UK

【資料日期】：2011011253

【資料語(yǔ)言】：英文

【資料格式】：PDF

【資料目錄和簡(jiǎn)介】：

The next-generation wireless broadband technology is changing the way
we work, live, learn, and communicate through effective use of stateof-
the-art mobile broadband technology. The packet-data-based revolution
started around 2000 with the introduction of 1x Evolved Data Only
(1xEV-DO) and 1x Evolved Data Voice (1xEV-DV) in 3GPP2 and High
Speed Downlink Packet Access (HSDPA) in 3GPP. The wireless broadband
fourth-generation technology (4G) is an evolution of the packetbased
3G system and provides a comprehensive evolution of the
Universal Mobile Telecommunications System specifications so as to
remain competitive with other broadband systems such as 802.16e
(WiMAX). Specification work was started in late 2004 on Long Term
Evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access
Network intended for commercial deployment in 2010. Two main components
constitute the LTE system architecture – the Evolved Universal
Terrestrial Radio Access Network (E-UTRAN) and the Evolved Packet
Core (EPC). The goals for the evolved system (E-UTRAN and EPC)
included support for improved system capacity and coverage, high peak
data rates, low latency, reduced operating costs, multi-antenna support,
flexible bandwidth operations, and seamless integration with existing
systems. The standardization work for LTE Rel-8 was completed in early
2009 and commercial LTE systems will be deployed in the 2011–2012
timeframe. LTE Rel-8 is currently evolving to LTE-Advanced (LTE Rel-9
and Rel-10), which will further improve the spectral efficiency, peak rates,
and user experience compared with LTE Rel-8. LTE-Advanced has also
been approved by the International Telecommunication Union (ITU) as an
InternationalMobile Telecommunications-Advanced (IMT-A) technology.
The book is organized in seven chapters. Chapter 1 gives a timeline and
brief description of the evolution of digital wireless technology starting
with GSM, IS-95, cdma2000 1x, WCDMA Rel-99, HSPA (Rel-5/6),WiMAX, LTE, LTE-Advanced, and 802.16m with emphasis on how
supported data rates, throughput, and applications have evolved.
Chapter 2 provides a brief description of LTE requirements and system
architecture together with the basic principles of orthogonal frequencydivision
multiple-access (OFDMA) and single-carrier frequency-division
multiple-access (SC-FDMA) technology. Chapter 3 dives into the basic
details of LTE downlink OFDMA transmission including transport and
physical-channel structure, control-channel details, system operations, and
inter-cell interference coordination schemes both for FDD (Frequency-
Division Duplex) and for TDD (Time-Division Duplex) LTE. Aspects of
downlink system performance under various channels and antenna structure
are summarized at the end of the chapter.
Chapter 4 provides the details of LTE uplink transport and physicalchannel
structure, control-channel details, random access, system operations,
and fractional power control followed by uplink system performance
under various channels and antenna configurations. The LTE system offers
a rich suite of multiple-antenna techniques that can be used in various
scenarios to improve the performance and user experience. Chapter 5
describes various multi-antenna schemes for LTE downlink and uplink
and provides a system-performance comparison of various multi-antenna
schemes. Chapter 6 is devoted to technologies for LTE-Advanced (LTE-A).
The chapter describes the requirements for IMT-A and how LTE-A will
satisfy those requirements using enhanced technologies. The technologies
include support of wider bandwidth using carrier aggregation, uplink
spatial multiplexing, enhanced downlink spatial multiplexing, coordinated
multiple-point transmission and reception, and heterogeneous networks
including relays, distributed antenna systems, and pico-cells. Aspects of
the systemperformance of these enhancements are presented and compared
with the performance of the legacy LTE system.
Finally, Chapter 7 provides a comparison of LTE/LTE-A with other
competitive broadband systems such as 802.16e/802.16m. As the name
signifies, this chapter outlines both qualitative and quantitative differences
between the 802.16e/802.16m (WiMAX) system and the LTE/LTE-A
system. System performance comparisons between these systems are presented
for various reuse schemes and antenna configurations.