SYSTEM AND METHODS FOR ENABLING COORDINATED BEAMFORMING IN OVERLAPPING BASIC SERVICE SET IN WLAN

摘要

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. REFER TO FIGURE 1