Communication apparatus and communication method for subcarrier selective feedback

A first communication apparatus, comprising:

• a receiver, which, in operation, receives a Null Data Physical Protocol Data Unit (NDP) Announcement frame and a NDP from a second communication apparatus;
• circuitry, which, in operation, perform sensing measurement;
• and
• a transmitter, which, in operation, transmits a sensing measurement report frame to the second communication apparatus wherein the sensing measurement report frame includes sensing measurement result information according to a subcarrier grouping parameter (Ng) which is set based on bandwidth information.

A communication method for a first communication apparatus, the communication method comprising:

• receiving a Null Data Physical Protocol Data Unit (NDP) Announcement frame and a NDP from a second communication apparatus;
• performing sensing measurement;
• and
• transmitting a sensing measurement report frame to the second communication apparatus wherein the measurement report frame includes sensing measurement result information according to a subcarrier grouping parameter (Ng) which is set based on bandwidth information.