System and methods for enabling coordinated beamforming in overlapping basic service set in WLAN
First Claim
1. A method for a coordinated beamforming for overlapping basic service sets (OBSSs) in wireless local area network (WLAN), the method comprising:
- deciding, by an access point (AP), to participate in the coordinated beamforming for the OBSSs, wherein the OBSSs comprise a plurality of APs and a plurality of stations (STAs) associated with the APs, wherein each AP is associated with more than one STA; and
transmitting, by the AP, a coordinated beamforming (CB) announcement message indicating an identifier (ID) of the AP and an ID of each station (STA) associated with the AP to the other APs of the OBSSs so that the other APs adjust their beamforming to their associated STAs based on the CB announcement message.
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Accused Products
Abstract
Embodiments are provided for enabling a beamforming mechanism in WLAN OBSSs. In an embodiment, a first AP of the OBSSs decides to participate in coordinated beamforming for the OBSSs. The OBSSs comprise a plurality of APs and a plurality of STAs associated with the APs. The AP thus transmits, periodically, a coordinated beamforming (CB) announcement message indicating an ID of the first AP and an ID of each STA associated with the first AP. When a second AP of the OBSSs receives the message from the first AP, the second AP maintains the ID of the first AP and the ID of each STA associated with the first AP in an entry of a CB table. When the second AP stops receiving the message, the second AP removes, from the CB table, the entry of the IDs of the first AP and its associated STAs.
24 Citations
20 Claims
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1. A method for a coordinated beamforming for overlapping basic service sets (OBSSs) in wireless local area network (WLAN), the method comprising:
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deciding, by an access point (AP), to participate in the coordinated beamforming for the OBSSs, wherein the OBSSs comprise a plurality of APs and a plurality of stations (STAs) associated with the APs, wherein each AP is associated with more than one STA; and transmitting, by the AP, a coordinated beamforming (CB) announcement message indicating an identifier (ID) of the AP and an ID of each station (STA) associated with the AP to the other APs of the OBSSs so that the other APs adjust their beamforming to their associated STAs based on the CB announcement message. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An access point (AP) comprising:
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a processor; and a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to; decide to participate in a coordinated beamforming for overlapping basic service sets (OBSSs) in wireless local area network (WLAN), wherein the OBSSs comprise a plurality of APs and a plurality of stations (STAs) associated with the APs, wherein each AP is associated with more than one STA; and transmit a coordinated beamforming (CB) announcement message indicating an identifier (ID) of the AP and an ID of each station (STA) associated with the AP to the other APs of the OBSSs so that the other APs adjust their beamforming to their associated STAs based on the CB announcement message. - View Dependent Claims (9, 10, 11)
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12. A method for a coordinated beamforming for overlapping basic service sets (OBSSs) in wireless local area network (WLAN), the method comprising:
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receiving, at first access point (AP), a coordinated beamforming (CB) announcement message from a second AP, wherein the CB announcement message indicates an identifier (ID) of the second AP and an ID of each STA associated with the second AP, wherein the second AP is associated with more than one STA, wherein the OBSSs comprise a plurality of first APs and the second AP, and wherein the first APs adjust their beamforming based on the CB announcement message of the second AP; and maintaining the ID of the second AP and the ID of each STA associated with the second AP in an entry of a CB table, wherein the entry associates each STA with the second AP. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A first access point (AP) comprising:
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a processor; and a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to; receive a coordinated beamforming (CB) announcement message from a second AP, wherein the CB announcement message indicates a media access control (MAC) address of the second AP and a MAC address of each STA associated with the second AP, wherein each AP is associated with more than one STA, wherein overlapping basic service sets (OBSSs) comprise a plurality of first APs and the second AP, wherein the first APs perform a coordinated beamforming in wireless local area network (WLAN), and wherein the first APs adjust their beamforming based on the CB announcement message of the second AP; and maintain the MAC address of the second AP and the MAC address of each STA associated with the second AP in an entry of a CB table, wherein the entry associates each STA with the second AP. - View Dependent Claims (19, 20)
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Specification