Dickinson Wright RLLP
Power saving using integrated CF-End indication
An electronic device that transmits a frame to a second electronic device is described. In particular, during operation, an interface circuit in the electronic device (such as an access point in a WLAN) may transmit the frame to the second electronic device using a Wi-Fi communication protocol. The frame may include information cancelling a previously specified NAV protected time in a preamble of the frame. For example, the information may include a CF-End indication. Moreover, the information may be included in a MAC header of the frame and, more generally, in a preamble of a high efficiency (HE) physical layer convergence protocol (PLCP) protocol data unit (PPDU). Furthermore, the electronic device may transmit the frame in response to a block acknowledgment (BA) from the second electronic device.
Apple Inc.
Y H H
Y02D H04W H04W
additional additional inventional
Christiaan A. Oren Joonsuk Jarkko L. Guoqing Yong Ashok
Hartman Shani Kim Kneckt Li Liu Ranganath