公开(公告)号：US20230284123A1

公开(公告)日：2023-09-07

申请号：US18178402

申请日：2023-03-03

Applicant: Nokia Solutions and Networks Oy

Inventor： Shang Bin GE ,  Jun Jun Chen ,  Gang Cheng

IPC: H04W48/16 ,  H04L5/00 ,  H04B7/22 ,  H04W72/0446

CPC classification number: H04W48/16 ,  H04L5/0048 ,  H04B7/22 ,  H04W72/0446

Abstract: The objective of the embodiments of the present disclosure is to provide a method, device and system for backscatter communication based on Wi-Fi signals. Wherein, a Wi-Fi signal reader device broadcasts periodically a device query message to instruct backscatter communication devices upon receiving the device query message to report their respective device ID information; said backscatter communication devices report their device ID information to said Wi-Fi signal reader device in response to said device query message; said Wi-Fi signal reader device counts the number of the backscatter communication devices that have reported their respective device ID information, and allocates to them the corresponding time slot information.