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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.
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 ...
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.
The Bluetooth protocol RFCOMM is a simple set of transport protocols, made on top of the L2CAP protocol, providing emulated RS-232 serial ports (up to sixty simultaneous connections to a Bluetooth device at a time). The protocol is based on the ETSI standard TS 07.10.
For example, Android Beam software uses NFC to enable pairing and establish a Bluetooth connection when doing a file transfer and then disabling Bluetooth on both devices upon completion. [82] Nokia, Samsung, BlackBerry and Sony [ 83 ] have used NFC technology to pair Bluetooth headsets, media players and speakers with one tap. [ 84 ]
Samsung: Galaxy Note20: 2020 August Note 5G and Ultra model only [15] Samsung Find, Google's Find My Device NXP SR100T Galaxy S21: 2021 January Plus (+) and Ultra models only [16] NXP SR100T Galaxy S22: 2022 February Plus (+) and Ultra models only [17] NXP SR100T Galaxy S23: 2023 February Plus (+) and Ultra models only Galaxy S24: 2024 January
This is a list of UNISOC ... channel LPDDR2 333 MHz ... Wi-Fi 2.4/5G dual-frequency, MU-MIMO Supports Bluetooth AOA AOD+Wi-Fi RTT fusion positioning
Each ANT channel consists of one or more transmitting nodes and one or more receiving nodes, depending on the network topology. Any node can transmit or receive, so the channels are bi-directional. [9] ANT accommodates three types of messaging: broadcast, acknowledged, and burst. Broadcast is a one-way communication from one node to another (or ...