| 摘要 |
A method and system reduce interference between overlapping first (100) and second wireless LAN cells (150) contending for the same medium. Each cell includes a respective pluralily of member stations (104A, 104B, 106). An inter-cell contention-free period value is assigned to a first access point station (102) in the first cell (100), associated with an accessing order in the medium for member stations in the first and second cells. The access point (102) in the first cell (100) transmits an initial shield packet (118) to deter other stations from contending for the medium. The access point then transmits a beacon packet containing the inter-cell contention-free period value to member stations in the second cell. A second access point (152) in the second cell (150) can then delay transmissions by member stations in the second cell until after the inter-cell contention-free period expires. The beacon packet sent by the first access point station (102) also includes an intra-cell contention-free period value, which causes the member stations in the first cell (100) to delay accessing the medium until polled by the first access point (102). |
