3G CDMA2000
Third Generation (3G) is the term used to describe the latest generation of mobile services which provide advanced voice communications and high-speed data connectivity, including access to the Internet, mobile data applications and multimedia content. The International Telecommunication Union (ITU), working with industry standards bodies from around the world, has defined the technical requirements and standards as well as the use of spectrum for 3G systems under the IMT-2000 (International Mobile Telecommunications-2000) program.
The ITU requires that IMT-2000 (3G) networks, among other capabilities, deliver improved system capacity and spectrum efficiency over 2G systems and that they support data services at minimum transmission rates of 144 kbps in mobile (outdoor) and 2 Mbps in fixed (indoor) environments.
Based on these requirements, in 1999 the ITU approved five radio interface modes for IMT-2000 standards (Recommendation 1457). Three of the five approved standards (CDMA2000® , TD-SCDMA, WCDMA) are based on CDMA. CDMA2000 is also known by its ITU name, IMT-2000 CDMA Multi-Carrier (MC).
The world's first 3G commercial system was launched by SK Telecom (South Korea) in October 2000 using CDMA2000 1X. By the end of 2006 there will be more than 430 million 3G users across all six continents, In Korea, Japan and North America there are already more 3G users than 2G subscribers, and globally the number of 3G subscribers is expected to surpass 2G in 2011, ten years since 3G’s inception and 5 years less than it took 2G to surpass 1G.
CDMA2000 Technologies
CDMA2000 represents a family of standards and includes:
CDMA2000 1X
CDMA2000 1xEV-DO Technologies
CDMA2000 1xEV-DO Rel 0
CDMA2000 1xEV-DO Rev A
CDMA2000 1xEV-DO Rev B
Ultra Mobile Broadband - UMB
CDMA2000 builds on the inherent advantages of CDMA technologies and introduces other enhancements, such as Orthogonal Frequency Division Multiplexing (OFDM and OFDMA), advanced control and signaling mechanisms, improved interference management techniques, end-to-end Quality of Service (QoS), and new antenna techniques such as Multiple Inputs Multiple Outputs (MIMO) and Space Division Multiple Access (SDMA) to increase data throughput rates and quality of service, while significantly improving network capacity and reducing delivery cost.
Key features of CDMA2000 are:
Leading performance: CDMA2000 performance in terms of data-speeds, voice capacity and latencies continue to outperform in commercial deployments other comparable technologies
Efficient use of spectrum: CDMA2000 technologies offer the highest voice capacity and data throughput using the least amount of spectrum, lowering the cost of delivery for operators and delivering superior customer experience for the end users
Support for advanced mobile services: CDMA2000 1xEV-DO enables the delivery of a broad range of advanced services, such as high-performance VoIP, push-to-talk, video telephony, multimedia messaging, multicasting and multi-playing online gaming with richly rendered 3D graphics
All-IP – CDMA2000 technologies are compatible with IP and ready to support network convergence. Today, CDMA2000 operators that have deployed IP-based services enjoy more flexibility and higher bandwidth efficiencies, which translate into greater control and significant cost savings
Devices selection: CDMA2000 offers the broadest selection of devices and has a significant cost advantage compared to other 3G technologies to meet the diverse market needs around the world
Seamless evolution path : CDMA2000 has a solid and long-term evolution path which is built on the principle of backward and forward compatibility, in-band migration, and support of hybrid network configurations
Flexibility: CDMA2000 systems have been designed for urban as well as remote rural areas for fixed wireless, wireless local loop (WLL), limited mobility and full mobilility applications in multiple spectrum bands, including 450 MHz, 800 MHz, 1700 MHz, 1900Mhz and 2100 MHz
CDMA2000 Advantages
Superior Voice Clarity
High-Speed Broadband Data Connectivity
Low End-to-End Latency
Increased Voice and Data Throughput Capacity
Time-to-Market Performance Advantage
Long-Term, Robust and Evolutionary Migration Path with Forward and Backward Compatibility
Differentiated Value-Added Services such as VoIP, PTT, Multicasting, Position Location, etc.
Flexible Network Architecture with connectivity to ANSI-41, GSM-MAP and IP-based Networks and flexible Backhaul Connectivity (see the text at the end – we can do that later)
Application, User and Flow-based Quality of Service (QoS)
Flexible Spectrum Allocations with Excellent Propagation Characteristics
Robust Link Budget for Extended Coverage and Increased Data Throughputs at the Cell Edge
Multi-mode, Multi-band, Global Roaming
Improved Security and Privacy
Lower Total Cost of Ownership (TCO)
