SPACE INDICATION METHOD AND COMMUNICATION DEVICE

Embodiments of this application provide a space indication method and a communication apparatus, and relate to the field of communication technologies. A first communication apparatus receives first indication information from a second communication apparatus, where the first indication information includes structure information of first sensing space, and the structure information of the first sensing space includes first information indicating a first tree structure of the first sensing space; determines the tree structure of the first sensing space based on the first indication information; determines feedback information based on the tree structure of the first sensing space, where the feedback information indicates status information sensed by the first communication apparatus in the first sensing space or status information sensed by the first communication apparatus outside the first sensing space; and sends the feedback information to the second communication apparatus. In this application, structure information of sensing space can be more accurately described by using a tree structure.