System and method for enabling collaborative beamforming within overlapping basic service sets in a WLAN

摘要

Embodiments are provided for enabling beamforming mechanisms in WLAN OBSS. In one embodiment, the first AP of the OBSS decides to participate in coordinated beamforming for OBSS. The OBSS includes a plurality of APs and a plurality of STAs associated with the APs. Accordingly, the AP periodically sends a cooperative beamforming (CB) announcement message indicating the ID of the first AP and the ID of each STA associated with the first AP. When the second AP of the OBSS receives a 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 the CB table entry. To do. When the second AP stops receiving the message, the second AP removes the first AP and its associated STA ID entry from the CB table.