CDMA450 represents a family of CDMA2000 technologies that operate across the 410-470 MHz band.1 It is the only 3G (IMT-2000) solution that is commercially available for deployment in this frequency band.

CDMA450 systems support all CDMA2000 standards developed by 3GPP2 and published by the TIA as TIA-EIA-IS-CDMA2000 (CDMA-MC) including: CDMA2000 1X, 1xEV-DO Release 0, Revision A, and future enhancements to these technologies. These technologies are capable of delivering voice, Internet access, multicasting and broadband data services in both rural and urban settings using fixed, limited mobility and full mobility networks.

A significant competitive advantage of CDMA450 is that it can provide advanced telecommunication services over wide areas economically due to the enhanced propagation characteristics enabled by the low frequency band. By combining the expanded range of the 450 MHz frequency band with the benefits of CDMA2000’s industry-leading spectral efficiency, superior voice capacity, greater broadband data speeds, lower latency and quality of services (QoS) features, CDMA450 presents a powerful value proposition for operators and customers alike.

Leading infrastructure vendors are playing an active role in deploying CDMA450 services worldwide. There is a broad range of commercially available CDMA450 devices that includes fixed wireless phones, desktop modems, machine-to-machine modules, ultra low-cost handsets and USB thumb-drive modems. Multi-band (CDMA450/CDMA800) and multi-mode (CDMA450/GSM900) WorldMode^TM devices allow customers to enjoy the benefits of broader international roaming services.

Due to its superior performance and economics, there is significant momentum behind the deployment of CDMA450 across Africa, Asia, Europe and Latin America. It is rapidly becoming the technology of choice for providing universal access to services that will help increase social and economic prosperity. Millions of people are using the technology in densely populated urban areas as well as sparsely-populated rural areas to communicate, connect to the Internet and benefit from innovative data solutions.

With the identification of the 450 MHz band for IMT by the International Telecommunication Union (ITU) at the 2007 World Radiocommunication Conference (WRC-07), regulators in many countries are in the process of allocating the band for 3G broadband services, creating new opportunities for CDMA450.

1. The 450 MHz band includes sub-bands in the frequency ranges of 410-430 MHz, 450-470 MHz and 470-490 MHz.