Patent ID: 9414380
Filing Date: 2016-08-09
CPC Classification: H04B,H04W

Claim Text:
1. An apparatus for a wireless communication device, the apparatus comprising: receiver circuitry configured to receive RF signals including, during a beacon interval, an announcement of an indication of a number of sector-sweep slots that are to occur in a subsequent association beamforming training period (A-BFT) during the beacon interval within which the announcement is received, the sector-sweep slots comprising available time slots; processing circuitry configured to use a random backoff procedure to determine a backoff amount to delay transmission of sector-sweep frames of a reverse sector sweep within a first of the sector-sweep slots; and transmitter circuitry configured to transmit RE signals including at least some of the sector-sweep frames of the reverse sector sweep during the sector-sweep slot at a time based on the backoff amount, the processing circuitry to configure the receiver circuitry and the transmitter circuitry, wherein a number of sector-sweep frames of the reverse sector sweep is based on a number of antenna sectors, wherein when additional sector-sweep frames of the reverse sector sweep are to be transmitted, the processing circuitry is configured to decrease the backoff amount for transmission the additional sector-sweep frames in a next sector-sweep slot of the A-BFT.