MITIGATING OVERLAPPING BASIC SERVICE SET INTERFERENCE IN SMART GRID NETWORKS
First Claim
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1. A method for mitigating Overlapping Basic Service Set (OBSS) interference in a wireless communications network, the method comprising:
- storing a timing synchronization function (TSF) offset that includes a timing offset between access point (AP) devices;
determining a target beacon transmission time (TBTT) of the AP devices;
synchronizing the AP devices based on the TBTT;
collaborating to allocate different beacon intervals, by exchanging beacon frames that contain beacon schedule frames;
choosing beacon interval allocations; and
transmitting the chosen allocated beacon interval allocations.
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Abstract
Systems and methods for implementing a mitigation of overlapping basic service set (OBSS) interference are disclosed. Synchronization of access point (AP) devices may be based upon a transmission synchronization function (TSF) offset between the AP devices. In an implementation, collaboration between the AP devices may include exchanging of beacon schedule frames through a controller, or over the air media access.
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Citations
26 Claims
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1. A method for mitigating Overlapping Basic Service Set (OBSS) interference in a wireless communications network, the method comprising:
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storing a timing synchronization function (TSF) offset that includes a timing offset between access point (AP) devices; determining a target beacon transmission time (TBTT) of the AP devices; synchronizing the AP devices based on the TBTT; collaborating to allocate different beacon intervals, by exchanging beacon frames that contain beacon schedule frames; choosing beacon interval allocations; and transmitting the chosen allocated beacon interval allocations. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless communications network comprising:
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an access point device synchronized with other access point devices, wherein the access point device collaborates by exchanging beacon frames with the other access point devices to allocate different beacon intervals, wherein the allocated beacon intervals are chosen by the synchronized access point device and the other access point device to avoid overlapping beacon intervals; and a station, associated with the access point device, wherein the station adopts the beacon interval allocation chosen by the access point device. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. An access point (AP) device comprising:
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one or more processors that generate beacon frames for collaborating different beacon intervals between the AP device with other AP device, wherein the beacon intervals are allocated at the AP device and the other AP devices to avoid overlapping beacon intervals; memory configured to the one or more processors that identify a target beacon transmission time (TBTT) of the AP device and other AP device for synchronization; and a transmitter to wirelessly transmit the beacon frames. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A computer-readable medium having stored thereon a data structure, comprising:
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a frame header data field that includes a media access control address (MAC address) to identify access point source and access point destination of a beacon schedule frame; a start transmission beacon transmission time (start TBTT) data field that defines beginning of a super beacon interval in the access point source, wherein the super beacon interval includes of more than one beacon interval; a beacon interval periodicity data field that defines number of beacon intervals that are included in the super beacon interval; and a bitmap data field that defines which beacon interval in the super beacon interval is being used by the access point source. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification