The Way How Bluetooth Works!

Everyone knows what Bluetooth serial is and what are its functions and uses. But if you think about how this wireless technology has won over hearts of billions of people, you would be curious to know the mechanism behind it. What makes the wireless technology to connect to several mediums without any cables?

A physical layer also known as the RF transceiver usually works at 2.4 gigahertz in the unrestricted ISM band. A frequency springing transceiver getting services from the core system helps in battling fading and interference.

The Master Device and Its Slaves

When many devices are grouped together and are synchronized, then they form a piconet. You might start wondering, what is a piconet? Well, when the channel is grouped together with many other devices, all of them start operating together in the frequency springing pattern and the master device stays in charge of the synchronization.

For example, a cell phone is the master device and every other device of the piconet like the MP3 player, headset, car stereo, etc. are its slaves. So, every single device has its own frequency springing pattern usually controlled by the master device algorithmically.

How the Transmission Takes Place?

The channel or the wireless link is further divided into slots. Each slot has its own packets. So when data is being transferred, it is done through packets. During the transmission and reception process, all the frequency springing takes place. The packet that made just one transmission can now be sent over various frequencies inside the ISM band.

The channel can support transport of various analytical links that have their own function to perform. While a link supporting synchronous traffic is responsible for handling audio data, the asynchronous traffic can perform other functions of delivering a file or several others.

The Relation between the Inquiring and the Scanning Device

One major reason how the Bluetooth works is due to the ‘inquiry’ and ‘inquiry scan.  Every scanning device responds to the frequency of the device that is inquiring. Each time a scanning device receives the inquiry, it immediately sends the information to the inquiring device to match the nature that has accepted the signal.

For example, if you want to link your cell phone to a printer to get a picture printed, the cell phone starts looking for nearby devices. When the scanning device that is the printer gets the inquiry and responds, the availability of this option pops up on the cell phone screen. Choosing the option to connect, the process begins.

With your hands free for talking, connecting devices and listening to music on wireless earphones, you don’t notice the complications that occur during this whole process. But Bluetooth technology has indeed become successful with time!