Asynchronous connection-oriented logical transport
 | This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages)
|
Asynchronous Connection-Less (ACL) is a communications protocol. It is used as a transmission link used for data communication in the Bluetooth system or as a definition with access code(72bit) + packet header(54bit) + payload + CRC(16bit).
Asynchronous Connection-Less Link[1] (ACL) is used when data is more important than avoiding latency. In this type of link, if a payload encapsulated in the frame is corrupted, it is retransmitted. A secondary returns an ACL frame in the available odd-numbered slot if and only if the previous slot has been addressed to it. ACL can use one, three or more slots and can achieve a maximum data rate of 721 kbit/s.
Packet Types
DM1, DH1, DM3, DH3, DM5, DH5, AUX1
D(1)(2) (1) M : rate 2/3 FEC used H : no FEC used
(2) 1 : 1 slot used for one frame 3 : 3 slots used for one frame 5 : 5 slots used for one frame
References
- ^ Data Communications and Networking, 4th Edition — Chapter 14 Wireless LANs, Section 14.2 Bluetooth, Page 439
 | This article related to telecommunications is a stub. You can help Wikipedia by expanding it. |