A dedicated architecture for handsets

eGPS provides a revolutionary architecture for integrating universal positioning capability into handsets - ensuring that it can be integrated without affecting a handset's core functionality.

Backwards-compatible with A-GPS, the approach works in synergy with trends in handset design - exploiting the computational capability of the handset host processor, and the existing radio and processing resources of CSR's widely-used Bluetooth silicon. It eliminates large amounts of the redundant hardware system usually required with dedicated GPS ICs (more information).

CSR's first eGPS solution will be a combined Bluetooth/GPS device with an incremental BOM cost of under $1 in volume. And the PCB area required for the combined Bluetooth/GPS core is virtually identical to that for Bluetooth alone!

The approach leverages CSR's existing host software development system (BlueCore Host Software) for integrating Bluetooth into handsets - with its abstraction layer - providing simple and field-proven porting to a wide range of popular embedded host processors.

Devices will be available to suit different target applications from pedestrian positioning to continuous turn-by-turn navigation, as well as different classes of handset. Single-chip silicon support for eGPS will start shipping in 2008. CSR is also joining with leading equipment and service providers to trial and deploy eGPS and related enhanced location technologies, as standard and interoperable technology.

A better positioning future

All CSR eGPS ICs:

• support industry standard A-GPS assistance when available
• improve GPS performance with autonomous eGPS enhancements (fine time and frequency aiding) wherever cellular signals are available
• provide an accurate fallback position in conjunction with an eGPS server*
• work as fully autonomous GPS receivers in the absence of a mobile network

* CSR has developed A-GPS compatible server technology to support eGPS, and it is available to network infrastructure providers.