Tuesday, October 18, 2011

Bluetooth 3.0

Bluetooth 3.0 protocol adaptation layer according to the application of 802.11 Wi-Fi technology, which greatly improves transmission speed. In this way, Bluetooth 3.0 Wi-Fi devices will be able to connect to other devices for data transmission.Professional evaluationApril 21, 2009, the Bluetooth SIG (Bluetooth SIG) formally promulgated a new generation of standards "Bluetooth Core Specification Version 3.0 High Speed" (Bluetooth Core Specification Version 3.0 High Speed), Bluetooth 3.0 is the core of "Generic Alternate MAC / PHY "(AMP), which is a new alternative radio technology that allows any Bluetooth protocol stack for the task to dynamically select the correct radio frequency. Was originally expected for new technologies, including 802.11 and the standard UMB, but the new specification of the application to cancel the UMB.As a new specification, Bluetooth 3.0 transfer speeds will naturally be higher, while the secret lies in the 802.11 wireless protocol. By integrating "802.11 PAL" (Protocol Adaptation Layer), Bluetooth 3.0 data transfer rate up to about 24Mbps (you can call when needed for 802.11 WI-FI high-speed data transfer). , Is eight times as Bluetooth 2.0, can be easily used for high-definition video recorder to the TV, PC to PMP, UMPC to data transmission between the printer.
 
Power consumption, Bluetooth 3.0 high-speed transmission through large amounts of data will naturally consume more energy, but due to the introduction of the Enhanced Power Control (EPC) mechanism, supplemented by 802.11, the actual idle power consumption will be significantly reduced standby power consumption of Bluetooth devices problem expected to be initially addressed. In fact, the Bluetooth SIG is also working to develop new low-power version of the specification.
In addition, the new specification also has the common testing methods (GTM) and one-way broadcast connectionless data (UCD) two technologies, and includes a set of HCI commands to get the key length.
 
Allegedly, equipped with a Bluetooth 2.1 module via a PC to upgrade the firmware so that theoretically the device also supports Bluetooth 2.1 Bluetooth 3.0. Alliance members have begun to equipment manufacturers to develop Bluetooth 3.0 solution.
 
Microsoft's next operating system, Windows 8 development plan disclosed, Windows 8 will support USB 3.0 and Bluetooth 3.0. For most of our daily application of Bluetooth mobile phones, and finally in August 2010 ushered in almost alphabetical order of the first phones to support Bluetooth 3.0: Samsung i9000.

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