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What is Bluetooth throughput?
Bluetooth divides transmitted data into packets, and transmits each packet on one of 79 designated Bluetooth channels. Each channel has a bandwidth of 1 MHz. It usually performs 1600 hops per second, with adaptive frequency-hopping (AFH) enabled. Bluetooth Low Energy uses 2 MHz spacing, which accommodates 40 channels.
How fast is Bluetooth low energy?
The bit rate is 1 Mbit/s (with an option of 2 Mbit/s in Bluetooth 5), and the maximum transmit power is 10 mW (100 mW in Bluetooth 5).
What is Bluetooth MTU?
The ATT Maximum Transmission Unit (MTU) is the maximum length of an ATT packet. Per the Bluetooth Core Specification, the maximum length of an attribute can be 512 bytes. In reality, it can be slightly larger than this to accommodate the ATT header. On Android, the maximum MTU can be 517 bytes.
What is Bluetooth Low Energy used for?
As the name suggests, Bluetooth low energy (BLE) technology, also known as Bluetooth Smart or Bluetooth 4.0, uses less energy than standard Bluetooth wireless communications. BLE could be used for home automation, wireless medical devices, exercise sensors, retail geofencing and mobile payments.
What protocol does Bluetooth use?
The commonly adopted protocols used in Bluetooth are Point-to-Point Protocol (PPP), Internet Protocol (IP), User Datagram Protocol (UDP), Transmission Control Protocol (TCP), and Wireless Application Protocol (WAP).
Why is it important to increase the throughput of Bluetooth?
The more packets you can send in a connection, the higher your throughput will be. The maximum packets you can send in an interval is often limited by the maximum connection event duration. Let’s look at the Bluetooth layers that the application data travels through and discuss the layers that can be optimized for improving throughput.
What can Bluetooth Low Energy be used for?
Bluetooth Low Energy was originally intended to transfer small chunks of data back and forth between devices. However, it’s now commonly used to transfer large amounts of data such as firmware updates, continuous sensor data, and even audio. For these types of use cases, it can become necessary to optimize your apps to maximize throughput.
How does ble affect the data throughput of an application?
There are a few factors that impact the data throughput of a BLE application. The most common are: PHY being used (LE 1M vs. LE 2M vs. LE Coded (S=2 or S=8)) Maximum number of packets per connection interval Operation type: Write with response vs. write without response, Indications vs. Notifications
How does the connection interval work in Bluetooth?
The connection interval effectively determines how many packets can be sent during one connection event. The higher the value, the more packets can be sent in one connection event (up to a certain limit for some devices).