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HOME arrow Wireless arrow CSR demonstrates 50-times faster Bluetooth arrow Registration
CSR demonstrates 50-times faster Bluetooth
Written by Ben Fountain   
Monday, 14 April 2008
CSR's ULP Bluetooth could soon find its way into wristwatches
CSR's ULP Bluetooth could soon find its way into wristwatches
CSR has given the first public demonstration of its Ultra Low Power (ULP) Bluetooth silicon. Demonstrated at the Continua Health Alliance medical conference in Luxembourg, the ULP technology consumes 10 times less power than standard Bluetooth and is 50-times faster.
The technology is expected to have a major impact in the healthcare market.

Other applications include devices such as wrist watches, wireless keyboards, toys and sports sensors where low power consumption is a key design requirement.

ULP Bluetooth is a complementary Bluetooth technology that can be used to transfer simple data sets between compact devices and can run for up to ten years on one button cell battery. ULP Bluetooth was previously known as Wibree.

The technology was developed by Nokia in 2006. End products based on ULP Bluetooth will have battery standby times measured in years, not just days or weeks, according to CSR.

To connect devices in standard Bluetooth, the master device has to synchronize to a slave device by paging a specific device using up to 32 frequencies, it then issues FHS (frequency hopping spectrum) packets, then it polls the slave, before negotiating connections at both the Link Manager and L2CAP layers – all of this essential connection process takes place before actually sending data.

When ULP Bluetooth is used, in a wireless heart rate monitor for example, the monitor simply ‘advertises’ itself to the control/reader using just three frequencies (could be a mobile phone or watch) that then connects sends its very short burst of data and then switches off again. This allows ULP Bluetooth to achieve data transfer 50-times faster than standard Bluetooth; less time spent transferring data means the ULP radio spends less time active. 

ULP Bluetooth is a complementary Bluetooth technology that can be used to transfer simple data sets between compact devices and is expected to be able to run for up to ten years on one button cell battery. Data transfer speeds are about 1Mbps - about a third those of conventional Bluetooth

Because of its low power requirements, CSR believes ULP Bluetooth is set to significantly broaden the applications for Bluetooth.

CSRR already has a number of significant world-firsts under its belt, including the development of the first single-chip Bluetooth solution. 

CSR also announced in July 2007 that its dual-mode (Bluetooth + ULP Bluetooth) Bluetooth silicon would be available this year.



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