TU (Time Unit)
From HandWiki
A time unit (TU) is a unit of time equal to 1024 microseconds.[1] It was originally introduced in IEEE 802.11-1999 standard[2] and continues to be used in newer issues of the IEEE 802.11 standard.[1] A whole number of such units are used to describe several intervals in that standard. The use of the term is to avoid using the term "millisecond", which is about 2.4% shorter. The unit allows for maintaining intervals that are easy to implement in hardware that has a 1 MHz clock (by dividing the clock signal in half ten times, rather than operating a phase-locked loop or digital divider to divide such a clock signal by 1000).
One time unit is equal to one millionth of a kibisecond (1 TU = 10−6 Kis).
See also
- Binary prefix
- IEEE 1541
- Jiffy
References
- ↑ 1.0 1.1 "IEEE Std 802.11-2007". IEEE (Institute of Electrical and Electronics Engineers). 2007-06-12. p. 14. http://standards.ieee.org/getieee802/download/802.11-2007.pdf. "time unit (TU): A measurement of time equal to 1024 μs."
- ↑ Maufer, Thomas (2004). A Field Guide to Wireless LANs: For Administrators and Power Users. Prentice Hall Professional. p. 144. 0131014064. ISBN 9780131014060. https://books.google.com/books?id=GB-87qyhc8sC&pg=PA142. Retrieved 2015-10-27.
External links
- IEEE 802 Standards available via IEEE Get Program
- IEEE 802.11 Tutorial
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