Method and apparatus for extremely high throughput null data packet support using ranging null data packet announcement

An apparatus comprising:

• one or more processors;
• and
• a memory storing instructions which, when executed by the one or more processors, cause the apparatus to perform a method, the method comprising:
• sending, to one or more responder Wi-Fi devices (RWFDs), a request for channel state information, the request comprising a null data packet announcement (NDPA) frame, the NDPA frame having:
• one or more RWFD fields each associated with a respective RWFD of the one or more RWFDs;
• a first common information field (CIF) comprising first information segments defining information common to the one or more RWFDs, the CIF having four octets;
• and
• a second CIF comprising second information segments defining a bandwidth of the NDPA frame.

A computer-readable storage medium having instructions stored thereon which, when executed by one or more processors, cause the one or more processors to perform a method, the method comprising:

• sending, to one or more responder Wi-Fi devices (RWFDs), a request for channel state information, the request comprising a null data packet announcement (NDPA) frame, the NDPA frame having:
• one or more RWFD fields each associated with a respective RWFD of the one or more RWFDs;
• a first common information field (CIF) comprising first information segments defining information common to the one or more RWFDs, the CIF having four octets;
• and
• a second CIF comprising second information segments defining a bandwidth of the NDPA frame.