CDMA2000 has a robust, long-term evolution path that provides operators with significant technology performance, total cost of ownership and time-to-market leadership in the delivery of advanced mobile voice and data services.

• 1 year lead in the introduction of 3G, with CDMA2000 1X
• 4 year lead in broadband wireless services, with CDMA2000 1xEV-DO Rel. 0
• 2-3 year lead in the commercialization of all-IP 3G mobile networks supporting VoIP, multimedia and advanced broadband services, with CDMA2000 1xEV-DO Rev. A
• 1-2 year lead in delivering next-generation advanced mobile broadband services and the convergence of telecommunications, information technology, consumer electronics, and high-performance multimedia services, with Ultra Mobile Broadband

Note: timeline depicts initial commercial availability of each technology. Those introduced beyond 2008 are under standardization and are subject to variability
1	EV-DO Rev A and Rev B incorporate OFDM for multicasting.
2	Data rates are based on 64 QAM and a 2x20 MHz FDD band allocation and are scalable with the number of carriers assigned. Up to 15 carriers, up to 4.9 Mbps per carrier.
3	Multiple modes supported: CDMA, TDM, OFDM, OFDMA, LS-OFDM. New antenna techniques used: 4x4 MIMO and SDMA. Leverages EV-DO protocol stack.
4	Data rates are based on 2x20 MHz FDD band allocation and 4x4 MIMO. Data rate depends on the level of mobility.
5	Upper range of DL peak data rates for Release 7 and Release 8 introduce enhancements is based on 64 QAM, 2x2 MIMO.
6	Initial requirements are based on OFDMA in the DL and SC-FDMA in the UL, FDD, 64 QAM, 2 TX MIMO in DL, and 16 QAM single TX stream in UL.

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Each evolutionary step of CDMA2000 leverages the inherent advantages of CDMA and introduces new technologies and enhancements, including OFDM, OFDMA, MIMO and SDMA, to expand network capacity, increase data rates, reduce latencies, and minimize the cost of delivering services, while preserving previous investments.

Today, CDMA2000 technologies offer the most voice capacity, highest data rates and lowest latencies of any wide area network technology. Building on this solid foundation, future enhancements will further strengthen the performance and economics of the technology and support the convergence of fixed, mobile and broadcast networks through the implementation of All-IP end-to-end solutions.

The underlying principle of the CDMA2000 evolution path is backward and forward compatibility which allows operators to seamlessly and cost-effectively upgrade their existing networks to support enhanced capabilities and advanced services. This backward compatibility is one of the key competitive advantages of the CDMA2000 evolution path and has greatly contributed to its commercial success around the world. Benefits of backward compatibility include:

• Rapid commercialization and deployment
• Lower CapEx and OpEx, enabling an improved ROI
• Investment protection
• Service transparency for existing and new end-users

Like cdmaOne (IS-95), CDMA2000 standards utilize 2x1.25 MHz radio channels. Future enhancements, including CDMA2000 1xEV-DO Rev. B and Ultra Mobile Broadband (UMB), will enable operators to aggregate up to 15 1.25 MHz channels in 20 MHz of spectrum to deliver higher throughputs and greater network efficiencies.