REQUEST TO SEND (RTS) AND CLEAR TO SEND (CTS) FOR MULTICHANNEL OPERATIONS Russian patent published in 2015 - IPC H04W28/20 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to communication systems. The invention provides techniques and apparatus for signalling the bandwidth to be used for wireless communication using an RTS/CTS (Request to Send/Clear to Send) frame exchange, provided for bandwidths of at least 20 MHz, 40 MHz, 80 MHz, 160 MHz, or higher. This exchange of bandwidth information may be performed implicitly - by determining the channels through which the RTS/CTS frames are actually sent - or explicitly. In addition to this bandwidth information exchange, aspects of the present invention may also allow for Network Allocation Vector (NAV) protection in multiple channels.

EFFECT: wireless communication media may be reserved, and transmission may be protected from hidden nodes.

103 cl, 20 dwg