A first wireless communications station configured to: wirelessly communicate to at least a second wireless communications station a station- capability information element, IE, that includes information identifying capabilities of the first wireless communications station and a station address of the first wireless communications station, the station-capability IE included in at least one of: an information-request action frame specifying requested information from the at least second wireless communications station when the first wireless communications station initiates communication with the at least second wireless communications station, and an information-response action frame, wherein the information-response action frame includes station-capability information of the first wireless communications station when sent by the first wireless communications station in response to the information-request action frame from the at least second wireless communications station or when sent unsolicited to provide an information update to the at least second wireless communications station, wherein the station-capability IE includes an association identifier "AID" of the first wireless communications station, and the station-capability information about the first wireless communications station, wherein the station-capability information includes at least one item selected from a list of items that includes: beamforming capabilities, number of antennas, number of elements per antenna, supported modulations, supported channels, and multi-user multiple-input multiple-output "MU MIMO" capabilities, and wherein when the first wireless communications station is a central coordinator of a basic-service set "BSS" to which the first wireless communications station belongs: the first wireless communications station is further configured to wirelessly communicate to a third wireless communications station an information-response action frame with an empty payload, in response to a received information-request action frame for which the third wireless communications station solicits information about another wireless communications station, and the information-response action frame with the empty payload indicates that the other wireless communications station is not a member of the BSS and the first wireless communications station is a central coordinator of the BSS. an information-request action frame specifying requested information from the at least second wireless communications station when the first wireless communications station initiates communication with the at least second wireless communications station, and an information-response action frame, wherein the information-response action frame includes station-capability information of the first wireless communications station when sent by the first wireless communications station in response to the information-request action frame from the at least second wireless communications station or when sent unsolicited to provide an information update to the at least second wireless communications station, wherein the station-capability IE includes an association identifier "AID" of the first wireless communications station, and the station-capability information about the first wireless communications station, wherein the station-capability information includes at least one item selected from a list of items that includes: beamforming capabilities, number of antennas, number of elements per antenna, supported modulations, supported channels, and multi-user multiple-input multiple-output "MU MIMO" capabilities, and wherein when the first wireless communications station is a central coordinator of a basic-service set "BSS" to which the first wireless communications station belongs: the first wireless communications station is further configured to wirelessly communicate to a third wireless communications station an information-response action frame with an empty payload, in response to a received information-request action frame for which the third wireless communications station solicits information about another wireless communications station, and the information-response action frame with the empty payload indicates that the other wireless communications station is not a member of the BSS and the first wireless communications station is a central coordinator of the BSS. the first wireless communications station is further configured to wirelessly communicate to a third wireless communications station an information-response action frame with an empty payload, in response to a received information-request action frame for which the third wireless communications station solicits information about another wireless communications station, and the information-response action frame with the empty payload indicates that the other wireless communications station is not a member of the BSS and the first wireless communications station is a central coordinator of the BSS.