Channel stae information for multiple access points

A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of an apparatus of a station (STA), the instructions to configure the one or more processors to:

• encode a trigger frame for null data packet announcement (NDPA) frames, the trigger frame comprising an identification of the master AP, an indication that a slave AP is to transmit a second NDPA frame simultaneously with the master AP transmitting a first NDPA frame, and that the slave AP is to transmit a second null data packet (NDP) simultaneously with a master station transmitting a first NDP;
• configure the master station to transmit the trigger frame;
• encode the first NDPA frame, the first NDPA frame comprising an identification of the master AP and an indication that a plurality of stations are to provide channel state information (CSI) reports to the master station;
• configure the master AP to transmit the first NDPA. frame;
• encode a first NDP for transmission;
• encode for transmission a beam forming report poll (BFRP) trigger frame, the first BFRP trigger frame indicating resource units (RUs) for the plurality of stations to simultaneously transmit the CSI reports to the master station;
• and
• decode the CSI reports in accordance with the RUs.

An apparatus of a station, the apparatus comprising memory;

• and processing circuitry coupled to the memory, the processing circuitry configured to:
• decode a null data packet announcement (NDPA) frame, the NDPA frame comprising an identification of the master AP, an indication that a slave AP is to transmit a second NDP simultaneously with the master AP transmitting a first NDP, and an indication that the station is to provide a channel state information (CSI) report to the master station;
• decode a first NDP and the second NDP;
• determine the CSI report based on the first NDP and the second NDP;
• decode a beam forming report poll (BFRP) trigger frame, the BFRP trigger frame indicating a resource unit (RU) for the station to transmit the CSI report to the master station;
• and
• configure the station to transmit the CSI report to the master station in accordance with the resource unit.