Electronic device and method for controlling power of transmission signal in electronic device including multiple antennas

Patent metadata

Field	Value
Publication number	US-12200631-B2
Application number	US-202217647881-A
Country	US
Kind code	B2
Filing date	Jan 13, 2022
Priority date	Jan 13, 2021
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

According to various embodiments, an electronic device may comprise: a memory, a communication processor, at least one radio frequency integrated circuit (RFIC), and a plurality of antennas each connected with the at least one RFIC. The communication processor may be configured to: identify a change in an antenna-related setting for the plurality of antennas, identify frequency band information corresponding to a signal being communicated through at least one antenna among the plurality of antennas, in response to the change in the antenna-related setting, identify, from the memory, a transmit power-related setting value set corresponding to the identified frequency band information and an event related to the communication processor, and control the electronic device to adjust a power of a transmission signal to be transmitted through at least one antenna among the plurality of antennas based on the identified transmit power-related setting value.

First claim

What is claimed is:

1. An electronic device, comprising,
a memory;
a communication processor;
at least one radio frequency integrated circuit (RFIC) connected with the communication processor; and
a plurality of antennas each connected with the at least one RFIC through at least one radio frequency front-end (RFFE) circuit or at least one antenna tuning circuit,
wherein the communication processor, comprising processing circuitry, is configured to:
identify a change in an antenna-related setting for the plurality of antennas,
in response to the change in the antenna-related setting, identify frequency band information corresponding to a signal being communicated through at least one antenna among the plurality of antennas,
identify, from the memory, a transmit power-related setting value set corresponding to the identified frequency band information and an event related to the communication processor, and
based on the identified transmit power-related setting value, control the electronic device to adjust a power of a transmission signal to be transmitted through at least one antenna among the plurality of antennas,
wherein the identified frequency band information and the event related to the communication processor are stored in the memory, with a transmit power-related setting value, in a form of a mapping table.

2. The electronic device of claim 1 , wherein the change in the antenna-related setting includes a change of a path of a transmission signal transmitted from the at least one RFIC to at least one antenna among the plurality of antennas.

3. The electronic device of claim 1 , wherein the change in the antenna-related setting includes a change in a setting of the antenna tuning circuit.

4. The electronic device of claim 1 , wherein the event related to the communication processor includes at least one of uplink carrier aggregation (CA), downlink CA, antenna diversity, multiple-input and multiple-output (MIMO), antenna switching, a call event, dual connectivity (DC), or an inter-reference signal received power (RSRP) difference.

5. The electronic device of claim 1 , further comprising an application processor,
wherein the communication processor further configured to:
identify, from the memory, a transmit power-related setting value set corresponding to the identified frequency band information, the event related to the communication processor, and an event related to the application processor, and
based on the identified transmit power-related setting value, control the electronic device to adjust a power of a transmission signal to be transmitted through at least one antenna among the plurality of antennas.

6. The electronic device of claim 5 , wherein the event related to the application processor includes an event based on a signal received from at least one sensor.

7. The electronic device of claim 6 , wherein the event related to the application processor includes at least one of a grip event sensed by a grip sensor, a proximity event sensed by a proximity sensor, an event related to an image sensor, or an event related to connection of an external connecting terminal.

8. The electronic device of claim 1 , further comprising at least one switch configured to change transmission paths corresponding to the plurality of antennas,
wherein the communication processor further configured to control a transmission path of the transmission signal by controlling the at least one switch.

9. The electronic device of claim 1 , wherein the transmit power-related setting value is determined based on at least one of a maximum transmit power set for each transmission path of the electronic device, a maximum transmit power received from a base station, or a maximum transmit power considering a specific absorption rate (SAR) backoff event.

10. A method for controlling a power of a transmission signal in an electronic device including a communication processor, at least one radio frequency integrated circuit (RFIC) connected with the communication processor, and a plurality of antennas each connected with the at least one RFIC through at least one radio frequency front-end (RFFE) circuit or at least one antenna tuning circuit, the method comprising:
identifying a change in an antenna-related setting for the plurality of antennas;
in response to the change in the antenna-related setting, identifying frequency band information corresponding to a signal being communicated through at least one antenna among the plurality of antennas;
identifying, from a memory, a transmit power-related setting value set corresponding to the identified frequency band information and an event related to the communication processor; and
based on the identified transmit power-related setting value, adjusting a power of a transmission signal to be transmitted through at least one antenna among the plurality of antennas,
wherein the identified frequency band information and the event related to the communication processor are stored in the memory, with a transmit power-related setting value, in a form of a mapping table.

11. The method of claim 10 , wherein the change in the antenna-related setting includes a change of a path of a transmission signal transmitted from the at least one RFIC to at least one antenna among the plurality of antennas.

12. The method of claim 10 , wherein the change in the antenna-related setting includes a change in a setting of the antenna tuning circuit.

13. The method of claim 10 , wherein the event related to the communication processor includes at least one of uplink carrier aggregation (CA), downlink CA, antenna diversity, multiple-input and multiple-output (MIMO), antenna switching, a call event, dual connectivity (DC), or an inter-reference signal received power (RSRP) difference.

14. The method of claim 10 , further comprising,
identifying, from the memory, a transmit power-related setting value set corresponding to the identified frequency band information, the event related to the communication processor, and an event related to an application processor; and
based on the identified transmit power-related setting value, adjusting a power of a transmission signal to be transmitted through at least one antenna among the plurality of antennas.

15. The method of claim 14 , wherein the event related to the application processor includes an event based on a signal received from at least one sensor.

16. The method of claim 15 , wherein the event related to the application processor includes at least one of a grip event sensed by a grip sensor, a proximity event sensed by a proximity sensor, an event related to an image sensor, or an event related to connection of an external connecting terminal.

17. The method of claim 10 , further comprising:
controlling a transmission path of the transmission signal by controlling the at least one switch.

18. The method of claim 10 , wherein the transmit power-related setting value is determined based on at least one of a maximum transmit power set for each transmission path of the electronic device, a maximum transmit power received from a base station, or a maximum transmit power considering a specific absorption rate (SAR) backoff event.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Changhwa
• Jang Sohee
• Yu Hyungjoon
• Lee Youngkwon

Classifications

• H04W52/42

  in systems with time, space, frequency or polarisation diversity · CPC title

• H01Q1/2283

  mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package · CPC title

• H04B1/3838 Primary

  Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use · CPC title

• H04B7/0404

  the mobile station comprising multiple antennas, e.g. to provide uplink diversity · CPC title

• H04W52/367

  Power values between minimum and maximum limits, e.g. dynamic range · CPC title