I suspect confusion caused by acronym reuse. In my earlier answer, I referred to Time Division Duplexing (TDD) as a generic term describing duplex methods that allow devices to transmit and receive on a single frequency at different intervals. 802.11a, b, and g standards operate in this fashion, letting many stations share a single radio channel by using a coordination function to transmit when that channel is free. However, you won't find the term "TDD" in the 802.11 standard. Furthermore, this acronym is often used to specific wireless WAN services like WCDMA TDD or TD-CDMA. And, no, 802.11 products do not implement WCDMA TDD – they are entirely different wireless standards. To learn more about TDD, download this TDD Coaltion tutorial. By the way, TDD also stands for Telecommunications Device for the Deaf and the airport in Trinidad, Bolivia!
Dig Deeper on Wireless LAN (WLAN)
Related Q&A from Lisa Phifer
As the remote workforce increases, network managers and users might opt to set up two concurrent VPN connections from the same remote device. But ... Continue Reading
Is there a difference between a wireless access point vs. a router? Yes -- while the two wireless devices are related, they meet different needs in a... Continue Reading
Learn the differences between site-to-site VPNs vs. remote-access VPNs and find out about the protocols, benefits and the data security methods used ... Continue Reading