Synchronizing wireless local area network access points

Details Synchronizing wireless local area network access points Synchronizing wireless local area network access points

2007-12-05

2011-12-13

Vu, Huy (Department: 2461)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S503000, C370S252000

Reexamination Certificate

active

08077614

ABSTRACT:
In a wireless local area network, a first and second access point in which the RF coverage areas overlap are synchronized by positioning a monitor station within the overlap area. The monitor station receives beacon frames from both access points and records the arrival times. A manager in communication with both access points and the monitor station calculates a retardation interval and issues a control command to the second access point to retard transmission of its beacon frame. The retardation interval is calculated such that the contention-free period of the second access point does not overlap the contention-free period of the first access point. The manager may also issue control commands to the first and second access points to adjust their contention-free periods.

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IEEE Std 802.11-2007, pp. 79-81, pp. 419-425.

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