Report of minimum reflection beam amount in a reconfigurable intelligent surface (ris) -based sensing system

A method of wireless communication performed at a reconfigurable intelligent surface (RIS), the method comprising:

• receiving, by the RIS, a first message comprising information of a target sensing zone;
• receiving, by the RIS, a second message comprising a requested beamforming gain for RIS beams;
• determining, by the RIS, a minimum quantity of the RIS beams based on the information of the target sensing zone and the requested beamforming gain for the RIS beams;
• and
• transmitting, by the RIS, a reporting message comprising at least one of the minimum quantity of the RIS beams for sensing the target sensing zone or a configuration failure alert.

A network device for wireless communication, the network device comprising:

• at least one memory;
• and
• at least one processor coupled to the at least one memory and configured to:
• output for transmission a first message comprising information of a target sensing zone;
• output for transmission a second message comprising a requested beamforming gain for reconfigurable intelligent surface (RIS) beams;
• and
• receive a reporting message comprising at least one of a minimum quantity of the RIS beams for sensing the target sensing zone or a configuration failure alert.

A method of wireless communication performed at a network device, the method comprising:

• transmitting, by the network device, a first message comprising information of a target sensing zone;
• transmitting, by the network device, a second message comprising a requested beamforming gain for reconfigurable intelligent surface (RIS) beams;
• and
• receiving, by the network device, a reporting message comprising at least one of a minimum quantity of the RIS beams for sensing the target sensing zone or a configuration failure alert.