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2019 | OriginalPaper | Buchkapitel

Direction Finding Capability in Bluetooth 5.1 Standard

verfasst von : Nitesh B. Suryavanshi, K. Viswavardhan Reddy, Vishnu R. Chandrika

Erschienen in: Ubiquitous Communications and Network Computing

Verlag: Springer International Publishing

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Abstract

Bluetooth technology is a standard prescribed for short-range wireless communication that uses low-power radio frequency at a low cost. It is interoperable with all devices as it consumes a very small amount of energy. The Bluetooth Core Specification provided by Bluetooth Special Interest Group (SIG) will be adding direction finding feature in the Low Energy (LE) standard. This feature will enable a tracker to find the target by estimating the relative angle between the tracker and target. It uses either Angle of Arrival (AoA) or Angle of Departure (AoD) method with multiple antennas switching for direction estimation. To support this feature, the packet structure in LE physical layer is modified. The frames of the LE uncoded packets like the Protocol Datagram Unit (PDU) Header is modified and an additional frame known as Constant Tone Extension (CTE) is added to the LE packet structure. To implement the above ideas, we need to generate a portion of the LE packets in the National Instruments (NI) Bluetooth measurement toolkit. NI Bluetooth measurement toolkit is used for testing and measurement of Bluetooth RF signals. The results show that the CTE, which is needed for direction finding capability, is successfully incorporated in the BLE.5.1 packet structure.

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Metadaten
Titel
Direction Finding Capability in Bluetooth 5.1 Standard
verfasst von
Nitesh B. Suryavanshi
K. Viswavardhan Reddy
Vishnu R. Chandrika
Copyright-Jahr
2019
DOI
https://doi.org/10.1007/978-3-030-20615-4_4