Method and device for performing communication

Patent metadata

Field	Value
Publication number	US-12449526-B2
Application number	US-202318151912-A
Country	US
Kind code	B2
Filing date	Jan 9, 2023
Priority date	Jul 23, 2020
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A method and a device are provided. The device includes at least one communication module, a memory, and at least one processor operatively connected to the at least one communication module and the memory, wherein the at least one processor is configured to broadcast a first poll message including a first distance measurement cycle by using the at least one communication module, broadcast a second poll message including a second distance measurement cycle by using the at least one communication module, receive, from at least one external electronic device, a response message including a time-error applied response time, and determine the distance to the at least one external electronic device based on the time error-applied response time.

First claim

What is claimed is:

1. An electronic device comprising:
at least one communication module;
a memory; and
at least one processor operatively connected to the at least one communication module and the memory,
wherein the at least one processor is configured to:
broadcast a first poll message comprising a first distance measurement cycle by using the at least one communication module,
broadcast a second poll message comprising a second distance measurement cycle by using the at least one communication module,
receive a response message comprising a response time to which a time error is applied from at least one external electronic device, and
determine a distance to the at least one external electronic device, based on the response time to which the time error is applied.

2. The electronic device of claim 1 , wherein the time error is calculated by calculating a difference between a time when the at least one external electronic device receives the first poll message and a time when the at least one external electronic device receives the second poll message, and dividing the first distance measurement cycle comprised in the first poll message by the calculated difference.

3. The electronic device of claim 2 ,
wherein the at least one processor is configured to further calculate the response time, based on a first transmission offset comprised in the first poll message or the response message, and
wherein the response message further comprises a confidence level of the response time.

4. The electronic device of claim 3 , wherein the at least one processor is further configured to calculate the response time, based on at least one of a slot number for transmitting the response message, an offset number used to transmit the response message, or a time of one subslot.

5. The electronic device of claim 1 , wherein the at least one processor is further configured to:
determine a contention phase or a transmission offset;
broadcast the first poll message comprising the contention phase or the transmission offset by using the at least one communication module;
receive at least one response message from the at least one external electronic device through the at least one communication module in response to the first poll message; and
change the contention phase or the transmission offset, based on the at least one response message.

6. The electronic device of claim 5 ,
wherein the at least one processor is further configured to change a time corresponding to the contention phase, based on a number of the at least one response message, and
wherein the time corresponding to the contention phase is configured to be shorter than a time of a cycle in which a distance is measured through designated communication.

7. The electronic device of claim 5 , wherein the at least one processor is further configured to:
determine the distance to the at least one external electronic device or the second distance measurement cycle, based on the first response message;
receive at least one second response message comprising a response time to which the time error is applied from the at least one external electronic device; and
determine the distance to the at least one external electronic device, based on the response time comprised in the second response message.

8. The electronic device of claim 5 , wherein the at least one processor is further configured to:
determine whether a time corresponding to the contention phase expires,
operate in a sleep state with respect to designated communication in case that the time corresponding to the contention phase expires,
wherein the sleep state includes deactivating a first communication,
determine whether a time for performing the designated communication expires while operating in the sleep state with respect to the designated communication, and
activate the designated communication in case that the time for performing the designated communication expires.

9. The electronic device of claim 5 ,
wherein the transmission offset comprises at least one of a number of transmission offsets, a transmission offset number, or reception offset configuration information, and
wherein the transmission offset number is an offset number used for the electronic device to transmit the second poll message comprising the changed contention phase or the changed transmission offset.

10. The electronic device of claim 9 , wherein the reception offset configuration information is information for configuring whether the at least one external electronic device receiving the second poll message uses an offset number the same as the transmission offset number or randomly uses an offset number different from the transmission offset number when transmitting a response message to the second poll message.

11. An electronic device comprising:
at least one communication module;
a memory; and
at least one processor operatively connected to the at least one communication module and the memory,
wherein the at least one processor is configured to:
receive a first poll message comprising a first distance measurement cycle from an external electronic device by using the at least one communication module,
receive a second poll message comprising a second distance measurement cycle by using the at least one communication module,
calculate a time error and a response time, based on the first poll message or the second poll message, and
transmit a response message comprising the response time to which the time error is applied to the external electronic device through the at least one communication module.

12. The electronic device of claim 11 , wherein the at least one processor is further configured to:
calculate the time error by calculating a difference between a time when the first poll message is received and a time when the second poll message is received; and
divide the first distance measurement cycle by the calculated difference.

13. The electronic device of claim 12 , wherein the at least one processor is further configured to calculate the response time, based on a first transmission offset comprised in the first poll message or the response message.

14. The electronic device of claim 11 ,
wherein the at least one processor is configured to operate in a sleep state with respect to designated communication in case of having transmitted the response message,
wherein the sleep state includes deactivating the designated communication, and
wherein the at least one processor is configured to:
determine whether a time for performing the designated communication expires, and
activate the designated communication in case that the time for performing the designated communication expires.

15. A method of operating an electronic device, the method comprising:
receiving a message by using at least one communication module of the electronic device;
determining whether the received message is a poll message;
calculating a time error and a response time in case that the received message is the poll message; and
transmitting a response message comprising the response time to which the time error is applied to at least one external electronic device transmitting the poll message through the at least one communication module,
wherein, in case that the received poll message is a second poll message and a poll message received before the second poll message is a first poll message, the calculating of the time error comprises:
calculating a difference between a time when the first poll message is received and a time when the second poll message is received, and
dividing a first d

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kang Moonseok
• Yang Yi
• Kim Hyunchul
• Jang Jonghoon
• Hong Sukgi

Classifications

• G01S13/0209 Primary

  Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband · CPC title

• Y02D30/70

  in wireless communication networks · CPC title

• G01S13/103 Primary

  particularities of the measurement of the distance (G01S13/12, G01S13/14, G01S13/16, G01S13/18 and G01S13/20 take precedence) · CPC title

• H04W4/80

  Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication · CPC title

• H04W56/005

  compensating for timing error by adjustment in the receiver · CPC title