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This is in the globally unlicensed (but not unregulated) industrial, scientific and medical 2.4 GHz short-range radio frequency band. Bluetooth uses a radio technology called frequency-hopping spread spectrum. Bluetooth divides transmitted data into packets, and transmits each packet on one of 79 designated Bluetooth channels.
LE-ACL employs a spread spectrum scheme known as adaptive frequency hopping. At the start of each connection event, frequency hopping occurs, with one of the 37 general purpose Bluetooth LE radio channels being selected from the set of available channels using a channel selection algorithm. Each device in the connection will then switch to the ...
For example, Bluetooth MAP is used by HP Send and receive text (SMS) messages from a Palm/HP smartphone to an HP TouchPad tablet. [23] Bluetooth MAP is used by Ford in select SYNC Generation 1-equipped 2011 and 2012 vehicles [24] and also by BMW with many of their iDrive systems. The Lexus LX and GS 2013 models both also support MAP as does the ...
This is an essential difference over Bluetooth 2 EDR which also doubled the data rate but was doing that by employing a π/4-DQPSK or 8-DPSK phase modulation on a 1 MHz channel while Bluetooth 5 continues to use just frequency shift keying. The traditional transmission of 1 Mbit in the Bluetooth Basic Rate was renamed 1M PHY in Bluetooth 5.
Bluetooth devices intended for use in short-range personal area networks operate from 2.4 to 2.4835 GHz. To reduce interference with other protocols that use the 2.45 GHz band, the Bluetooth protocol divides the band into 80 channels (numbered from 0 to 79, each 1 MHz wide) and changes channels up to 1600 times per second.
Download as PDF; Printable version; ... channel LPDDR2 333 MHz ... Wi-Fi 2.4/5G dual-frequency, MU-MIMO Supports Bluetooth AOA AOD+Wi-Fi RTT fusion positioning
IEEE Std 802.15.3d-2017 defines an alternative physical layer (PHY) at the lower THz frequency range between 252 GHz and 325 GHz for switched point-to-point links is defined in this amendment. Two PHY modes are defined that enable data rates of up to 100 Gb/s using eight different bandwidths between 2.16 GHz and 69.12 GHz.
Also, low mobility users can aggregate multiple channels to get a download throughput of up to 1 Gbit/s [2] Flash-OFDM: Flash-OFDM: Mobile Internet mobility up to 200 mph (350 km/h) Flash-OFDM: 5.3 10.6 15.9: 1.8 3.6 5.4: Mobile range 30 km (18 miles) Extended range 55 km (34 miles) HIPERMAN: HIPERMAN: Mobile Internet: OFDM: 56.9: Wi-Fi: 802.11 ...