RTX supports BluetoothTM  ver. 1.2 - what´s the significant changes?

The processes for the Bluetooth updated ver. 1.2 are proceeding and are eagerly awaited for many. But what does this new version have of exciting changes for the end-user? There are a number of enhancements, including the much talked about Adaptive Frequency Hopping (AFH) for applications that will benefit from a coexistence solution. Some of the other interesting improvements are Extended SCO synchronisation connection oriented) and Scattermode, which together with AFH will be a significant improvement to the standard. Bluetooth ver. 1.2 is backward compatible with version 1.1, and there are no changes in the transmission speed.

Bluetooth ver. 1.2 - What´s new? Faster Connection set-up – faster synchronisation

The faster connection set-up, is a change in the protocol stack which will make it much faster to establish a connection between two Bluetooth devices, e.g. a headset and a mobile phone. The goal is to establish connection under 1 sec, which gives the enduser a faster synchronisation time, thus improving the user experience.

Extended SCO - better audio

One of the often-discussed topics had been the quality of audio transmission. The new ver. 1.2 will ensure a better audio transmission by introducing extended SCO. This means that the sound will be retransmitted if an error occurs, opposite today where the data just disappears.

Scatter Mode - for data access points

The new features in scatter mode are anchor and presence point and best-effort scheduling, which will significantly enhance the communication between the scatter nets. This feature can be used to improve the communication between e.g. data access points and terminals.

Anonymity Mode - removes your foot-step

The new version also makes it possible to not reveal your Bluetooth address. This makes it impossible to track your path when using e.g. hotspots simply by putting your device in anonymity mode.

Adaptive Frequency Hopping (AFH) - removes interference

Today Bluetooth tries to compete by hopping 1600 times/sec in 79 different channels. But the new AFH will make new hop tables for each slave, same channel hop and channel quality assessment. This means that when there are problems with interference on one

channel, the Bluetooth piconet can avoid that channel until it is available again. This will make it more robust against e.g. cordless phones, WLAN or microwave ovens. For more information about the new Bluetooth standards at RTX, please contact us: Phone +4596322300 or email: sales@rtx.dk or see the official Bluetooth website: www.bluetooth.com Bluetooth is a registret trademark and owned by Bluetooth SIG.