Document:
SHARKY - User’s Guide
2020/07/20
Figure 2. BLE Star-bus Topology
While BLE inherits the operating spectrum and the basic structure of the communication
protocol from the classic Bluetooth protocol, BLE implements a new lightweight Link Layer
that provides ultra-low power idle mode operation, fast device discovery, and reliable and
secure point-to-multipoint data transfers. As a result, BLE offers substantially lower peak,
average, and idle-mode power consumption than classic Bluetooth. Averaged over time,
BLE consumes only 10% of the power consumed by classic Bluetooth.
In addition to its ultra-low power consumption, BLE has several unique features that set it
apart from other available wireless technologies, including:
●
Interoperability
: Like classic Bluetooth devices, BLE devices follow standards set by
the Bluetooth Special Interest Group (SIG), and BLE devices from different
manufacturers interoperate.
●
Robustness
: BLE uses fast frequency hopping to secure a robust transmission even
in the presence of other wireless technologies.
●
Ease of Use
: BLE has been developed so that it is straightforward for designers to
implement it in a variety of different applications.
●
Latency
: The total time to send small chunks of data is generally fewer than 6 ms,
and as low as 3 ms (compared to 100 ms with classic Bluetooth).
●
Range
: Thanks to an increased modulation index, BLE technology offers greater
range (up to 200 feet and beyond, in ideal environments) than to classic Bluetooth
offers.
Doc: UG_MDX-STWBx, Rev 1.6
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