The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2019
Filed:
Sep. 16, 2016
Futurewei Technologies, Inc., Plano, TX (US);
Majid Ghanbarinejad, Rolling Meadows, IL (US);
Diana Maamari, Rolling Meadows, IL (US);
George Calcev, Hoffman Estates, IL (US);
Futurewei Technologies, Inc., Plano, TX (US);
Abstract
A method for channel reservation and communication using carrier sense multiple access (CSMA) with directional antennas in a wireless network. A source station (STA) may transmit a directional request to send (RTS) frame to a destination station before a data transmission. Upon receipt of the RTS frame, the destination STA may transmit a transmit network allocation vector (TNAV) frame instructing receiving stations not to perform transmissions toward the destination STA for a predefined period of time, which may include a channel quality measurement (CQM) period. The destination STA may transmit a directional clear-to-send (CTS) frame when channel quality estimated during the CQM meets a criterion. The source STA may then transmit a directional data transmission to the destination STA upon receipt of the CTS frame.