Ranging method, communication node, communication device and storage medium

Patent metadata

Field	Value
Publication number	US-12490050-B2
Application number	US-202018024209-A
Country	US
Kind code	B2
Filing date	Sep 3, 2020
Priority date	Sep 3, 2020
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

A ranging method performed by a first communication node includes send a ranging request message for ranging. The ranging request message carries a ranging parameter. The ranging parameter is configured to measure a relative position between the first communication node and a second communication node. A ranging method performed by a second communication node includes receiving a ranging request message for ranging sent by a first communication node. The ranging request message carries a ranging parameter. The ranging parameter is configured to measure a relative position between the first communication node and the second communication node.

First claim

What is claimed is:

1 . A ranging method, performed by a first communication node, the method comprising:
sending a ranging request message for ranging; wherein the ranging request message carries a ranging parameter; the ranging parameter is configured to measure a relative position between the first communication node and a second communication node; wherein the ranging parameter comprises at least one of: a security requirement indication, configured to indicate that a secure connection is required for the ranging or a secure connection is not required for the ranging; a ranging precision; a ranging range; a ranging object, comprising at least one of a distance or an angle; a first application layer identity authorized by an application layer of the first communication node, configured to indicate an application layer identity of a communication node capable of initiating the ranging to the application layer; a validity period of the first application layer identity; a second application layer identity authorized by the application layer, configured to indicate an application layer identity of a communication node capable of supporting, as a target communication node, the application layer to initiate the ranging; a validity period of the second application layer identity; or an indication of a ranging method, wherein the ranging method comprises a single-sided ranging method and a double-sided ranging method, wherein the single-sided ranging method is a method with which one communication node in both ranging parties sends a ranging signal to perform the ranging; and the double-sided ranging method is a method with which both ranging parties send ranging signals to perform the ranging.

2 . The method of claim 1 , further comprising:
receiving, by a ranging layer of the first communication node, a ranging request sent by an application layer of the first communication node, wherein, the ranging request carries the ranging parameter; and the ranging layer is a PC5-Signalling (PC5-S) protocol layer of a ranging service.

3 . The method of claim 1 , wherein, the ranging parameter comprises security requirement information; and the method further comprising:
determining, based on the security requirement information, whether or not to perform the ranging based on a secure connection; wherein the secure connection comprises a secure unicast connection established based on a PC5 interface.

4 . The method of claim 3 , wherein determining, based on the security requirement information, whether or not to perform ranging based on the secure connection comprises:
performing the ranging based on the secure connection, in response to the security requirement information indicating that the secure connection is required for the ranging; or, performing the ranging based on a connection other than the secure connection, in response to the security requirement information indicating that the secure connection is not required for the ranging.

5 . The method of claim 4 , wherein the connection other than the secure connection comprises at least one of:
a broadcast connection; a multicast connection; or a unicast connection that does not use an encryption mechanism for ranging transmission.

6 . The method of claim 3 , wherein the secure unicast connection comprises:
a unicast connection using an encryption mechanism for ranging transmission.

7 . The method of claim 1 , wherein the ranging request message further carries at least one of an application layer identity of the first communication node or an application layer identity of the second communication node.

8 . A ranging method, performed by a second communication node, the method comprising:
receiving a ranging request message for ranging sent by a first communication node; wherein the ranging request message carries a ranging parameter; the ranging parameter is configured to measure a relative position between the first communication node and the second communication node; wherein, the ranging parameter comprises at least one of: a security requirement indication, configured to indicate that a secure connection is required for the ranging or a secure connection is not required for the ranging; a ranging precision; a ranging range; a ranging object, comprising at least one of a distance or an angle; a first application layer identity authorized by an application layer of the first communication node, configured to indicate an application layer identity of a communication node capable of initiating the ranging to the application layer; a validity period of the first application layer identity; a second application layer identity authorized by an application layer, configured to indicate an application layer identity of a communication node capable of supporting, as a target communication node, the application layer to initiate the ranging; a validity period of the second application layer identity; or an indication of a ranging method, wherein the ranging method comprises a single-sided ranging method and a double-sided ranging method, wherein the single-sided ranging method is a method with which one communication node in both ranging parties sends a ranging signal to perform the ranging; and the double-sided ranging method is a method with which both ranging parties send ranging signals to perform the ranging.

9 . The method of claim 8 , wherein the ranging parameter comprises security requirement information; and the method further comprising:
determining, based on the security requirement information, whether or not to perform the ranging based on a secure connection; wherein the secure connection comprises a secure unicast connection established based on a PC5 interface.

10 . The method of claim 9 , wherein determining based on the security requirement information, whether or not to perform ranging based on the secure connection comprises:
performing the ranging based on the secure connection, in response to the security requirement information indicating that the secure connection is required for the ranging; or, performing the ranging based on a connection other than the secure connection, in response to the security requirement information indicating that the secure connection is not required for the ranging.

11 . The method of claim 10 , wherein the connection other than the secure connection comprises at least one of:
a broadcast connection; a multicast connection; or a unicast connection that does not use an encryption mechanism for ranging transmission.

12 . The method of claim 9 , wherein the secure unicast connection comprises:
a unicast connection using an encryption mechanism for ranging transmission.

13 . The method of claim 8 , wherein the ranging request message carries indication information indicating the ranging range; and the method further comprising:
responding to the ranging request message, in response to a distance between the first communication node and the second communication node being within the ranging range; or, not responding to the ranging request message, in response to a distance between the first communication node and the second communication node not being within the ranging range.

14 . The method of claim 8 , wherein the ranging request message carries indication information indicating an application layer identity of the first communication node; and the method further comprising:
responding to the ranging request message, in response to the application layer identity of the first communication node being a third application layer identity authorized by an app

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Jiang Xiaowei

Classifications

• H04W12/03

  Protecting confidentiality, e.g. by encryption · CPC title

• H04W76/14

  Direct-mode setup · CPC title

• H04W4/023 Primary

  using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds · CPC title

• H04W12/37

  Managing security policies for mobile devices or for controlling mobile applications · CPC title

• H04W12/02

  Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII] · CPC title