公开(公告)号：US20250024254A1

公开(公告)日：2025-01-16

申请号：US18902708

申请日：2024-09-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kang Wang ,  HuiSha Zhang ,  Qian Yu ,  Shichang Hu

IPC: H04W12/043 ,  H04L25/02 ,  H04W24/10

Abstract: A secure ranging method and an apparatus are provided. The method includes: a receiving-end device and a transmitting-end device obtain a session key through a narrowband system. The devices of both parties further generate secure CTSs in a symmetric manner based on the session key in combination with CTS configuration information, and perform inter-device ranging in a UWB system by using the CTSs. According to this application, the CTS can be flexibly configured based on the CTS configuration information, to improve secure ranging performance. In addition, the narrowband system replaces the UWB system to perform key-related information negotiation, and ranging is performed in the UWB system, so that high-accuracy ranging is implemented while low power consumption is considered.