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E-GPS is a technology that addresses the problem of providing quality timing assistance to GPS-enabled devices in asynchronous networks such as GSM and WCDMA. The lack of a common synchronization source means that devices take longer to provide a location. E-GPS brings together two independent positioning methods, CPS's Matrix and GPS technologies, to provide a single solution for location "everywhere" applications to achieve faster location fixes and lower power consumption.
CPS offers location technology known as Matrix, which comprises Matrix Client Software and Matrix Server Software. Trimble is a leading GPS provider offering boards, modules, chipsets and GPS-based software solutions. The companies intend to work together to demonstrate how E-GPS will improve in-building and urban canyon operation, permit significantly faster location fixes and reduce costs. The joint solution will combine device and server software intelligence to provide optimal accuracy, optimal coverage, and minimum latency for GPS-enabled handsets and other mobile devices, providing an excellent user experience. The objective of the joint development is to establish E-GPS as the technology of choice for mobile handsets and other GPS devices.
Source: Trimble, Feb. 8, 2005