Patent ID: 8064415
Filing Date: 2011-11-22
Classification: H04L,H04W

Abstract:
1. A method for reducing interference between overlapping first and second wireless local area network cells in a medium, each of the first and second wireless local area network cells including a respective plurality of member stations, comprising: coordinating by a first member station in the first wireless local area network cell a first contention-free session, the first contention-free session including multiple bursts with other member stations in the first wireless local area network cell, and retaining a control of the medium by the first member station by using interframe spaces between the multiple bursts such that the multiple bursts appear to contending stations to be a single instance of activity in the medium; setting by the first member station a backoff timer to a fixed deterministic post-backoff delay, which has a value of Bkoff times a fixed number of idle time slots, the value of Bkoff being greater than a number of overlapping cells; counting down the backoff timer by the first member station; transmitting a second contention-free session by the first member station when the backoff timer expires; and resetting the backoff timer to the value of Bkoff to start a new cycle.