HYBRID COORDINATION FUNCTION (HCF) ACCESS THROUGH TIERED CONTENTION AND OVERLAPPED WIRELESS CELL MITIGATION

摘要

A method and system reduce interference between overlapping first and second wireless LAN cells in a medium. Each cell includes a respective plurality of member stations and there is at least one overlapped station occupying both cells. An inter-cell contention-free period value is assigned to a first access point station in the first cell, associated with an accessing order in the medium for member stations in the first and second cells. The access point transmits a beacon packet containing the inter-cell contention-free period value, which is intercepted at the overlapped station. The overlapped station forwards the inter-cell contention-free period value to member stations in the second cell. A second access point in the second cell can then delay transmissions by member stations in the second cell until after the inter-cell contention-free period expires.

主权项

1. A method comprising:
using a value for a first inter-cell contention-free period by a first access point station in a first cell in a beacon packet, the value associated with an accessing order in a medium for member stations in a second cell of a plurality of cells during a transmission frame, where the value of the first inter-cell contention-free period is to be used as a notice that the first cell has seized the medium for a period of time represented by the value; and transmitting by the first access point station in the first cell, the beacon packet containing the value for the first inter-cell contention-free period, wherein the beacon packet is for an overlapped station that is occupying the first cell and the second cell, and the beacon packet is for enabling the value for the first inter-cell contention-free period to be forwarded to the member stations in the second cell, for delaying transmissions by the member stations in the second cell until after the first inter-cell contention free period has expired.