【資料名稱】：EDGE HSPA and LTE Broadband Innovation

【資料作者】：Rysavy Research

【資料日期】：2008

【資料語言】：英文

【資料格式】：PDF

【資料目錄和簡介】：

Through constant innovation, Universal Mobile Telecommunications System (UMTS) with
High Speed Packet Access (HSPA) technology and its evolution to beyond third generation
(3G) has established itself as the global, mobile-broadband solution. Building on the
phenomenal success of Global System for Mobile Communications (GSM), the GSM/UMTS
ecosystem is becoming the most successful communications technology family ever.
Through a process of constant improvement, the GSM family of technologies has not only
matched or exceeded the capabilities of all competing approaches, but has significantly
extended the life of each of its member technologies.
UMTS/HSPA, in particular, has many key technical and business advantages over other
mobile wireless technologies. Operators worldwide are now deploying both High Speed
Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA), the
combination of the two technologies called simply HSPA. HSPA is one of the most powerful
cellular-data technologies ever developed. HSPA, already widely available, follows the
successful deployment of UMTS networks around the world and is now a standard feature.
Any operator deploying UMTS today is doing so with HSPA. The UMTS-to-HSPA upgrade is
similar to Enhanced Data Rates for GSM Evolution (EDGE), which has already proven to be a
remarkably effective upgrade to GSM networks, and HSPA (or HSDPA for some networks) is
now supported by an overwhelming number of operators and vendors worldwide.
HSPA is strongly positioned to be the dominant mobile-data technology for the rest of the
decade. To leverage operator investments in HSPA, the 3GPP (Third Generation Partnership
Project) standards body has developed a series of enhancements to create “HSPA
Evolution,” also referred to as “HSPA+.” HSPA Evolution represents a logical development of
the Wideband Code Division Multiple Access (WCDMA) approach, and it is the stepping stone
to an entirely new Third Generation Partnership Project (3GPP) radio platform called 3GPP
Long Term Evolution (LTE). LTE, which uses Orthogonal Frequency Division Multiple Access
(OFDMA), should be ready for deployment in the 2010 timeframe. Simultaneously, 3GPP —
recognizing the significant worldwide investments in GSM networks—has defined
enhancements that will significantly increase EDGE data capabilities through an effort called
Evolved EDGE.
Combined with these improvements in radio-access technology, 3GPP has also spearheaded
the development of major core-network architecture enhancements such as the IP
Multimedia Subsystem (IMS) and the Evolved Packet Core (or EPC, previously called System
Architecture Evolution or SAE), as well as developments in Fixed Mobile Convergence (FMC).
These developments will facilitate new types of services, the integration of legacy and new
networks, the convergence between fixed and wireless systems, and the transition from
circuit-switched approaches for voice traffic to a fully packet-switched model.
The result is a balanced portfolio of complementary technologies that covers both radioaccess
and core networks, provides operators maximum flexibility in how they enhance their
networks over time, and supports both voice and data services.
This paper discusses the evolution of EDGE, HSPA enhancements, 3GPP LTE, the capabilities
of these technologies, and their position relative to other primary competing technologies.
The following are some of the important observations and conclusions of this paper:
 Persistent innovation created EDGE, which was a significant advance over GPRS;
HSPA and HSPA+, which are bringing UMTS to its full potential; and is now delivering
LTE, the most powerful, wide-area wireless technology ever developed.
EDGE, HSPA, LTE: Broadband Innovation Page 4
 GSM/UMTS has an overwhelming global position in terms of subscribers,
deployment, and services. Its success will marginalize other wide-area wireless
technologies.
 In current deployments, HSPA users regularly experience throughput rates well in
excess of 1 megabit per second (Mbps), under favorable conditions, on both
downlinks and uplinks. Planned enhancements will increase these peak userachievable
throughput rates, with 4 Mbps on commercial networks being commonly
measured.
 HSPA Evolution provides a strategic performance roadmap advantage for incumbent
GSM/UMTS operators. HSPA+ with 2x2 MIMO, successive interference cancellation,
and 64 Quadrature Amplitude Modulation (QAM) is more spectrally efficient than
competing technologies including Worldwide Interoperability for Microwave Access
(WiMAX) Wave 2 with 2x2 MIMO and Evolved Data Optimized (EV-DO) Revision B.
 The LTE Radio Access Network technical specification was approved in January 2008
and is being incorporated into 3GPP Release 8, which is close to completion. Initial
deployments are likely to occur around 2010. The 3GPP OFDMA approach used in
LTE matches or exceeds the capabilities of any other OFDMA system. Peak
theoretical rates are 326 Mbps in a 20 MHz channel bandwidth. LTE assumes a full
Internet Protocol (IP) network architecture, and it is designed to support voice in the
packet domain.
 LTE has become the technology platform of choice as GSM/UMTS and CDMA/EV-DO
operators are making strategic long-term decisions on their next-generation
platforms. In June of 2008, after extensive evaluation, LTE was the first and only
technology recognized by the Next Generation Mobile Network alliance to meet its
broad requirements.
 GSM/HSPA will comprise the overwhelming majority of subscribers over the next five
to ten years, even as new wireless technologies are adopted. The deployment of LTE
and its coexistence with UMTS/HSPA will be analogous to the deployment of
UMTS/HSPA and its coexistence with GSM.
 3GPP is now studying how to enhance LTE to meet the requirements of IMTAdvanced
in a project called LTE Advanced.
 UMTS/HSPA/LTE have significant economic advantages over other wireless
technologies.
 WiMAX has developed an ecosystem supported by many companies, but it will still
only represent a very small percentage of wireless subscribers over the next five to
ten years.
 EDGE technology has proven extremely successful and is widely deployed on GSM
networks globally. Advanced capabilities with Evolved EDGE can double and
eventually quadruple current EDGE throughput rates.
 With a UMTS multiradio network, a common core network can efficiently support
GSM, WCDMA, and HSPA access networks and offer high efficiency for both high and
low data rates, as well as for both high- and low-traffic density configurations. In the
future, EPC/SAE will provide a new core network that supports both LTE and
interoperability with legacy GSM/UMTS radio-access networks.
 Innovations such as EPC/SAE and UMTS one-tunnel architecture will “flatten” the
network, simplifying deployment and reducing latency.
EDGE, HSPA, LTE: Broadband Innovation Page 5
 Circuit-switched, voice over HSPA, then moving to Voice over Internet Protocol
(VoIP) over HSPA will add to voice capacity and reduce infrastructure costs. In the
meantime, UMTS/HSPA enjoys high circuit-switched voice spectral efficiency, and it
can combine voice and data on the same radio channel.
This paper begins with an overview of the market, looking at trends, EDGE and UMTS/HSPA
deployments, and market statistics. It then examines the evolution of wireless technology,
particularly 3GPP technologies, including spectrum considerations, core-network evolution,
broadband-wireless deployment considerations, and a feature and network roadmap. Next,
the paper discusses other wireless technologies, including Code Division Multiple Access
2000 (CDMA2000), Ultra Mobile Broadband (UMB), and WiMAX. Finally, it compares the
different wireless technologies technically, based on features such as performance and
spectral efficiency.
The appendix explains in detail the capabilities and workings of the different technologies
including EDGE, Evolved EDGE, WCDMA1, HSPA, HSPA Evolution (HSPA+), LTE, IMS, and
SAE.
【目錄】：TABLE OF CONTENTS
INTRODUCTION ...................................................................................................... 3
BROADBAND DEVELOPMENTS ................................................................................ 5
WIRELESS DATA MARKET ....................................................................................... 8
Trends ................................................................................................................ 9
EDGE/HSPA/HSPA+ Deployment ........................................................................... 13
Statistics ........................................................................................................... 13
WIRELESS TECHNOLOGY EVOLUTION AND MIGRATION ....................................... 15
Technical Approaches (TDMA, CDMA, OFDMA) ........................................................ 15
3GPP Evolutionary Approach ................................................................................ 17
Spectrum .......................................................................................................... 20
Core-Network Evolution ....................................................................................... 22
Service Evolution ................................................................................................ 23
Broadband-Wireless Deployment Considerations ..................................................... 24
Feature and Network Roadmap ............................................................................. 25
COMPETING TECHNOLOGIES ................................................................................ 29
CDMA2000 ........................................................................................................ 29
WiMAX .............................................................................................................. 32
IEEE 802.20 ....................................................................................................... 35
Wi-Fi and Municipal Wi-Fi Systems ........................................................................ 35
COMPARISON OF WIRELESS TECHNOLOGIES ....................................................... 36
Data Throughput ................................................................................................ 36
HSDPA Throughput in Representative Scenarios ...................................................... 40
Release 99 and HSUPA Uplink Performance ............................................................ 41
LTE Throughput .................................................................................................. 42
Latency ............................................................................................................. 43
Spectral Efficiency .............................................................................................. 44
Cost, Volume and Market Comparison ................................................................... 52
Competitive Summary ......................................................................................... 54
CONCLUSION ........................................................................................................ 56
APPENDIX: TECHNOLOGY DETAILS ...................................................................... 58
EDGE ................................................................................................................ 58
Evolved EDGE .................................................................................................... 62
UMTS/HSPA Technology ...................................................................................... 70
UMTS Release 99 Data Capabilities ........................................................................ 72
HSDPA .............................................................................................................. 73
HSUPA .............................................................................................................. 76
Evolution of HSPA (HSPA+) .................................................................................. 78
HSPA Voice Support ............................................................................................ 84
3GPP LTE .......................................................................................................... 86
4G, IMT-Advanced and LTE Advanced .................................................................... 89
UMTS TDD ......................................................................................................... 90
TD-SCDMA ........................................................................................................ 91
IMS .................................................................................................................. 91
Broadcast/Multicast Services ................................................................................ 93
EPC/SAE............................................................................................................ 94
ACRONYMS ........................................................................................................... 96
ADDITIONAL INFORMATION .............................................................................. 100
REFERENCES ...................................................................................................... 100