Electronic device for adjusting output power of signal by using millimeter wave, and control method therefor

Patent metadata

Field	Value
Publication number	US-12088356-B2
Application number	US-202217583508-A
Country	US
Kind code	B2
Filing date	Jan 25, 2022
Priority date	Aug 21, 2019
Publication date	Sep 10, 2024
Grant date	Sep 10, 2024

Abstract

An electronic device using a millimeter wave, according to various embodiments, includes a communication circuit and at least one processor. The at least one processor can be configured to: control the communication circuit so that a first millimeter wave signal is output at a first strength; use the communication circuit so that the first millimeter wave signal receives a first reflection signal reflected by an object; confirm whether the object is positioned within a first distance from the electronic device; determine the strength of a second millimeter wave signal to be a second strength corresponding to a second distance between the electronic device and the object, the second distance being shorter than the first distance; and control the communication circuit so that the second millimeter wave signal is output at the determined second strength.

First claim

The invention claimed is:

1. An electronic device using a millimeter wave comprising:
a communication circuit;
a plurality of wireless communication circuits configured to support a plurality of wireless communication schemes, and
at least one processor operatively connected with the communication circuit, the at least one processor is configured to:
control the communication circuit to output a first millimeter wave signal in a first strength to an outside of the electronic device,
receive a first reflection signal of the first millimeter wave signal reflected by an object positioned around the electronic device, using the communication circuit,
identify whether the object is positioned within a first distance from the electronic device, based on the received first reflection signal,
determine a strength of a second millimeter wave signal as a second strength corresponding to a second distance which is a distance between the electronic device and the object, in response to identifying that the object is positioned within the first distance, the second distance being smaller than the first distance,

control the communication circuit to output the second millimeter wave signal in the determined second strength to the outside of the electronic device,
identify at least one wireless communication scheme related to an application running on the electronic device among the plurality of wireless communication schemes, and
maintain a strength of a wireless communication signal output according to a wireless communication scheme corresponding to a highest priority among the identified at least one wireless communication scheme.

2. The electronic device of claim 1 , wherein the determined second strength is smaller than the first strength.

3. The electronic device of claim 1 , wherein the at least one processor is configured to:
identify an occurrence of a designated event, and
control the communication circuit to output the first millimeter wave signal, in response to identifying the occurrence of the designated event.

4. The electronic device of claim 3 , wherein the designated event includes at least one of execution of a predesignated application or obtaining of data of a threshold or more from at least one sensor.

5. The electronic device of claim 1 , wherein the at least one processor is configured to:
determine the strength of the second millimeter wave signal as a third strength being smaller than the second strength when the object moves to a third distance smaller than the second distance, and
control the communication circuit to output the second millimeter wave signal in the determined third strength.

6. The electronic device of claim 1 , further comprising,
wherein the at least one processor is configured to determine a strength of a plurality of communication signals so that a sum of a first SAR value generated by the second millimeter wave signal output in the second strength and a second specific absorption rate (SAR) value generated by the plurality of communication signals output according to the plurality of wireless communication schemes is a preset value or less.

7. The electronic device of claim 6 , wherein the at least one processor is configured to:
reduce a strength of a wireless communication signal output according to the identified at least one wireless communication scheme, according to a priority determined based on the running application.

8. The electronic device of claim 6 , wherein the at least one processor is configured to increase a strength of at least one wireless communication signal among the plurality of wireless communication signals when the object moves to a third distance smaller than the second distance.

9. The electronic device of claim 1 , further comprising a proximity sensor operatively connected with the at least one processor,
wherein the at least one processor is configured to identify the second distance based on the first reflection signal and proximity data obtained from the proximity sensor.

10. A method for controlling an electronic device using a millimeter wave, the method comprising:
outputting a first millimeter wave signal in a first strength to an outside of the electronic device;
receiving a first reflection signal of the first millimeter wave signal reflected by an object positioned around the electronic device;
identifying whether the object is positioned within a first distance from the electronic device, based on the received first reflection signal;
determining a strength of a second millimeter wave signal as a second strength corresponding to a second distance which is a distance between the electronic device and the object, in response to identifying that the object is positioned within the first distance, the second distance being smaller than the first distance; and
outputting the second millimeter wave signal in the determined second strength to the outside of the electronic device,
identifying at least one wireless communication scheme related to an application running on the electronic device among a plurality of wireless communication schemes, and
maintaining a strength of a wireless communication signal output according to a wireless communication scheme corresponding to a highest priority among the identified at least one wireless communication scheme.

11. The method of claim 10 , wherein the determined second strength is smaller than the first strength.

12. The method of claim 10 , further comprising:
identifying an occurrence of a designated event; and
outputting the first millimeter wave signal, in response to the occurrence of the designated event.

13. The method of claim 12 , wherein the designated event includes at least one of execution of a predesignated application or obtaining of data of a threshold or more from at least one sensor.

14. The method of claim 10 , further comprising:
determining the strength of the second millimeter wave signal as a third strength being smaller than the second strength when the object moves to a third distance smaller than the second distance; and
outputting the second millimeter wave signal in the determined third strength.

15. The method of claim 10 , further comprising determining a strength of a plurality of communication signals output so that a sum of a first specific absorption rate (SAR) value generated by the second millimeter wave signal output in the second strength and a second SAR value generated by the plurality of communication signals output according to the plurality of wireless communication schemes is a preset value or less.

16. The method of claim 15 , further comprising:
reducing a strength of a wireless communication signal output according to the identified at least one wireless communication scheme, according to a priority determined based on the running application.

17. The method of claim 15 , comprising increasing a strength of at least one wireless communication signal among the plurality of wireless communication signals when the object moves to a third distance smaller than the second distance.

18. The method of claim 10 , wherein the electronic device further comprises a proximity sensor operatively connected with at least one processor, and
wherein the method further comprises identifying the second distance based on the first reflection signal and proximity data obtained from the proximity sensor.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Junghun
• Kim Chiho
• Min Hyunkee
• Lim Taehun
• Choi Junsu
• Lee Haekwon
• Jeong Jongheon
• Lee Sunkey

Classifications

• H04W52/346

  distributing total power among users or channels · CPC title

• H04B1/04 Primary

  Circuits · CPC title

• G08B13/181

  using active radiation detection systems · CPC title

• G01S13/04

  Systems determining presence of a target (based on relative movement of target G01S13/56) · CPC title

• H04B17/102

  Power radiated at antenna · CPC title