A method by a first access point, AP, enabling coordinated beamforming, CB, for overlapping basic service sets, OBSSs, in wireless local area network, WLAN, the method comprising: deciding to participate in coordinated beamforming in the OBSSs, wherein the OBSSs comprise a plurality of second APs and a plurality of stations, STAs, associated with the second APs; transmitting, by the first AP, a second coordinated beamforming, CB, announcement message indicating an identifier, ID, of the first AP and an ID of each station, STA, associated with the first AP; and receiving, at the first AP, first CB announcement messages from the second APs in the OBSSs, wherein each first CB announcement message indicates an identifier, ID, of the corresponding second AP and an ID of each STA associated with the corresponding second AP; and maintaining the IDs of the second APs and the ID of each STA associated with the second APs in an entry of a CB table, wherein the entry associates each STA with the corresponding second AP; wherein, the first AP identifies each STA associated with second APs and requests the channel state information, CSI, from each STA associated with the second APs; wherein the coordinated beamforming allows simultaneous transmission from the first and the second APs in the OBSSs to one or more of the STAs associated therewith; wherein the ID of each AP is a media access control, MAC, address of the AP, and wherein the ID of each STA is a MAC address of the STA; wherein each CB announcement message is a frame comprising the MAC address of the corresponding AP and the MAC address of each STA associated with the corresponding AP; wherein, the method further comprises: receiving the first CB announcement messages periodically at a predefined period; and upon stopping to receive the CB announcement message for one of the second APs, removing from the CB table, the entry of the ID of the corresponding second AP and the ID of each STA associated with the corresponding second AP. deciding to participate in coordinated beamforming in the OBSSs, wherein the OBSSs comprise a plurality of second APs and a plurality of stations, STAs, associated with the second APs; transmitting, by the first AP, a second coordinated beamforming, CB, announcement message indicating an identifier, ID, of the first AP and an ID of each station, STA, associated with the first AP; and receiving, at the first AP, first CB announcement messages from the second APs in the OBSSs, wherein each first CB announcement message indicates an identifier, ID, of the corresponding second AP and an ID of each STA associated with the corresponding second AP; and maintaining the IDs of the second APs and the ID of each STA associated with the second APs in an entry of a CB table, wherein the entry associates each STA with the corresponding second AP; wherein, the first AP identifies each STA associated with second APs and requests the channel state information, CSI, from each STA associated with the second APs; wherein the coordinated beamforming allows simultaneous transmission from the first and the second APs in the OBSSs to one or more of the STAs associated therewith; wherein the ID of each AP is a media access control, MAC, address of the AP, and wherein the ID of each STA is a MAC address of the STA; wherein each CB announcement message is a frame comprising the MAC address of the corresponding AP and the MAC address of each STA associated with the corresponding AP; wherein, the method further comprises: receiving the first CB announcement messages periodically at a predefined period; and upon stopping to receive the CB announcement message for one of the second APs, removing from the CB table, the entry of the ID of the corresponding second AP and the ID of each STA associated with the corresponding second AP. receiving the first CB announcement messages periodically at a predefined period; and upon stopping to receive the CB announcement message for one of the second APs, removing from the CB table, the entry of the ID of the corresponding second AP and the ID of each STA associated with the corresponding second AP.