测距方法、装置、通信设备及存储介质

By using public key encryption to encrypt information during the ranging process between devices, the problems of signaling resource consumption and time waste in existing technologies are solved, and safe and efficient ranging is achieved.

CN115606216BActive Publication Date: 2026-07-17BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
Filing Date
2021-04-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When measuring safe distances between devices, especially when there is a large demand for distance measurement, existing technologies consume a lot of time and signaling resources.

Method used

By broadcasting a first message to indicate the public key of the first terminal, receiving the encrypted public key of the second terminal, and sending an encrypted third message to indicate the time difference, information security is ensured by using public key encryption, and signaling resource consumption is reduced.

Benefits of technology

While ensuring the security of information transmission, it reduces the consumption of signaling resources and ranging time.

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Abstract

本公开实施例提供了一种测距方法，其中，该方法由第一终端执行，该方法，包括：广播第一消息，第一消息用于指示第一终端的第一公钥；接收第二终端发送的第二消息，第二消息用于指示第一公钥加密的第二终端的第二公钥；向第二终端发送第二公钥加密的第三消息，第三消息用于指示第一消息的发送时刻和第二消息的接收时刻的第一时间差。
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