IEEE 802.11r-2008

IEEE 802.11r-2008 or fast BSS transition (FT) is an amendment to the IEEE 802.11 standard to permit continuous connectivity aboard wireless devices in motion, with fast and secure handoffs from one base station to another managed in a seamless manner. It was published on July 15, 2008.

Read more about IEEE 802.11r-2008:  Rationale For The Amendment, Fast BSS Transition