Method and apparatus for controlling ranging in wireless communication system

Patent metadata

Field	Value
Publication number	US-11137491-B2
Application number	US-201916678497-A
Country	US
Kind code	B2
Filing date	Nov 8, 2019
Priority date	Nov 9, 2018
Publication date	Oct 5, 2021
Grant date	Oct 5, 2021

Abstract

An electronic device and an operation method of the electronic device for transceiving data through ultra-wideband (UWB) in a wireless communication system are provided. The operation method includes broadcasting or multicasting, by the electronic device, a ranging start message including first data; receiving, by the electronic device from another electronic device, a ranging response message including second data; and broadcasting or multicasting, by the electronic device, a ranging final message including third data.

First claim

What is claimed is:

1. An operation method of a first electronic device for transceiving data through ultra-wideband (UWB) in a wireless communication system, the operation method comprising:
broadcasting, by the first electronic device, a ranging message comprising first data, wherein the first data comprises information indicating whether an additional message, which includes measurement information of time, is allowed or not;
receiving, by the first electronic device from a second electronic device, a ranging response message comprising second data;
broadcasting, by the first electronic device, a ranging final message comprising third data; and
broadcasting, by the first electronic device, the additional message in a case that the additional message is allowed,
wherein the additional message including the measurement information of time is different from the ranging final message, and
in a case that the additional message is not allowed, the third data being broadcasted with the ranging final message includes the measurement information of time.

2. The operation method of claim 1 , further comprising transmitting, by the first electronic device to the second electronic device, interval information used to schedule a ranging operation.

3. The operation method of claim 1 , further comprising transmitting, by the first electronic device to the second electronic device, scrambled timestamp sequence initial information used for security of a ranging operation.

4. The operation method of claim 1 , further comprising transmitting, by the first electronic device to the second electronic device, a figure of merit (FoM) for transmission of timestamp measurement information based on a ranging operation.

5. The operation method of claim 4 , wherein the FoM comprises information about whether a secure ranging operation has failed.

6. The operation method of claim 1 , further comprising transmitting, by the first electronic device to the second electronic device, angle information about an angle with respect to the second electronic device, the angle information being used to estimate a location relative to the second electronic device.

7. The operation method of claim 1 , wherein:
the first data comprises first information requesting the second electronic device to measure time of flight (ToF); and
the operation method further comprises receiving, by the first electronic device from the second electronic device, fourth data that is the ToF measured by the second electronic device based on the first information.

8. A first electronic device for transceiving data in a wireless communication system, the first electronic device comprising:
at least one transceiver;
at least one memory storing a program; and
at least one processor configured to execute the program to control the at least one transceiver to:
broadcast a ranging message comprising first data, wherein the first data comprises information indicating whether an additional message, which includes measurement information of time, is allowed or not;
receive, from a second electronic device, a ranging response message comprising second data;
broadcast a ranging final message comprising third data; and
broadcast the additional message in a case that the additional message is allowed,

wherein the additional message including the measurement information of time is different from the ranging final message, and
in a case that the additional message is not allowed, the third data being broadcasted with the ranging final message includes the measurement information of time.

9. The first electronic device of claim 8 , wherein the at least one processor is further configured to execute the program to control the at least one transceiver to transmit, to the second electronic device, interval information used to schedule a ranging operation.

10. The first electronic device of claim 8 , wherein the at least one processor is further configured to execute the program to control the at least one transceiver to transmit, to the second electronic device, scrambled timestamp sequence initial information used for security of a ranging operation.

11. The first electronic device of claim 8 , wherein the at least one processor is further configured to execute the program to control the at least one transceiver to transmit, to the second electronic device, a figure of merit (FoM) for transmission of timestamp measurement information based on a ranging operation.

12. The first electronic device of claim 11 , wherein the FoM comprises information about whether a secure ranging operation has failed.

13. The first electronic device of claim 8 , wherein the at least one processor is further configured to execute the program to control the at least one transceiver to transmit, to the second electronic device, angle information about an angle with respect to the second electronic device, the angle information being used to estimate a location relative to the second electronic device.

14. The first electronic device of claim 8 , wherein:
the first data comprises first information requesting the second electronic device to measure time of flight (ToF); and
the at least one processor is further configured to execute the program to control the at least one transceiver to receive, from the second electronic device, fourth data that is the ToF measured by the second electronic device based on the first information.

15. A non-transitory computer-readable recording medium having recorded thereon instructions executable by at least one processor of a first electronic device to perform an operation method for transceiving data through ultra-wideband (UWB) in a wireless communication system, the operation method comprising:
broadcasting, by the first electronic device, a ranging message comprising first data, wherein the first data comprises information indicating whether an additional message, which includes measurement information of time, is allowed or not;
receiving, by the first electronic device from a second electronic device, a ranging response message comprising second data; and
broadcasting, by the first electronic device, a ranging final message comprising third data; and
broadcasting, by the first electronic device, the additional message in a case that the additional message is allowed,
wherein the additional message including the measurement information of time is different from the ranging final message, and
in a case that the additional message is not allowed, the third data being broadcasted with the ranging final message includes the measurement information of time.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Hyunchul
• Yang Yi
• Jeong Seongah
• Kang Moonseok
• Yoon Sejong
• LEE Jonghyo
• Jang Jonghoon
• Choi Sehwan

Classifications

• H04B2201/71634

  Applied to ranging · CPC title

• H04W64/006

  with additional information processing, e.g. for direction or speed determination · CPC title

• H04W56/0065

  using measurement of signal travel time · CPC title

• H04B1/69

  Spread spectrum techniques · CPC title

• G01S13/765 Primary

  with exchange of information between interrogator and responder · CPC title