Electronic device and method for controlling power of transmission signal in transformable electronic device

Patent metadata

Field	Value
Publication number	US-12328684-B2
Application number	US-202217689473-A
Country	US
Kind code	B2
Filing date	Mar 8, 2022
Priority date	Mar 8, 2021
Publication date	Jun 10, 2025
Grant date	Jun 10, 2025

Abstract

An electronic device is provided. The electronic device includes first and second housings, a memory, an application processor, a communication processor, a Radio Frequency Integrated Circuit (RFIC) connected with the communication processor, and a plurality of antennas each connected with the RFIC through a Radio Frequency Front-End (RFFE) circuit. The communication processor may identify a change in an antenna-related setting for the plurality of antennas, identify frequency band information about 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 folding state information between the first housing and the second housing received from the application processor, identify, from the memory, a transmission power-related setting value set corresponding to the identified frequency band information, the folding state information, and an event related to the communication processor, and adjust a power of a transmission signal.

First claim

The invention claimed is:

1. An electronic device comprising:
a housing configured to be movable between a first state and a second state;
a plurality of antennas each disposed inside or in a portion of the housing;
at least one processor; and
memory storing instructions that, when executed by the at least one processor, cause the electronic device to:
based on a change of state information corresponding to a state of the housing, identify a change in a radio frequency (RF) path of transmission signals to be transmitted to at least one antenna among the plurality of antennas,
identify, from the memory, a setting value related to a transmission power of the transmission signals, based on frequency band information corresponding to the transmission signal to be transmitted to at least one antenna among the plurality of antennas, and the changed RF path, and
based on the setting value related to the transmission power of the transmission signals, control to adjust a power of the transmission signals to be transmitted through the at least one antenna among the plurality of antennas.

2. The electronic device of claim 1 , wherein the state information corresponding to the state of the housing comprises information corresponding to a folding angle between the first state and the second state.

3. The electronic device of claim 1 , wherein the frequency band information is stored with the setting value in the memory, as a mapping table.

4. The electronic device of claim 1 , wherein the setting value related to the transmission power of the transmission signals is set based on event information identified from the at least one processor.

5. The electronic device of claim 4 , wherein the event information identified from the at least one processor comprises event information related to an application processor among the at least one processor.

6. The electronic device of claim 5 , wherein the event information related to the application processor comprises 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.

7. The electronic device of claim 4 , wherein the event information identified from the at least one processor comprises event information related to a communication processor among the at least one processor.

8. The electronic device of claim 7 , wherein the event information related to the communication processor comprises 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.

9. A method for controlling a power of transmission signals in an electronic device comprising a housing configured to be movable between a first state and a second state, a plurality of antennas each disposed inside or in a portion of the housing, and at least one processor, the method comprising:
based on a change of the state information corresponding to a state of the housing, identifying a change in a radio frequency (RF) path of transmission signals to be transmitted to at least one antenna among the plurality of antennas;
identifying, from memory, a setting value related to a transmission power of the transmission signals, based on frequency band information corresponding to the transmission signal to be transmitted to at least one antenna among the plurality of antennas, and the changed RF path; and
based on the setting value related to the transmission power of the transmission signal, controlling to adjust a power of the transmission signals to be transmitted through the at least one antenna among the plurality of antennas.

10. The method of claim 9 , wherein the state information corresponding to the state of the housing comprises information corresponding to a folding angle between the first state and the second state.

11. The method of claim 9 , wherein the frequency band information is stored with the setting value in the memory, as a mapping table.

12. The method of claim 9 , wherein the setting value related to the transmission power of the transmission signals is set based on event information identified from the at least one processor.

13. The method of claim 12 , wherein the event information identified from the at least one processor comprises event information related to an application processor among the at least one processor.

14. The method of claim 13 , wherein the event information related to the application processor comprises 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.

15. The method of claim 12 , wherein the event information identified from the at least one processor comprises event information related to a communication processor among the at least one processor.

16. The method of claim 15 , wherein the event information related to the communication processor comprises 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.

17. A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions configured to, when executed by at least one processor of an electronic device, cause the electronic device to:
based on a change of state information corresponding to a state of a housing of the electronic device, identify a change in a radio frequency (RF) path of transmission signals to be transmitted to at least one antenna among a plurality of antennas each disposed inside or in a portion of the housing;
identify, from memory, a setting value related to a transmission power of the transmission signals, based on frequency band information corresponding to the transmission signal to be transmitted to at least one antenna among the plurality of antennas, and the changed RF path; and
based on the setting value related to the transmission power of the transmission signals, control to adjust a power of the transmission signals to be transmitted through the at least one antenna among the plurality of antennas.

Assignees

• Samsung Electronics Co Ltd

Inventors

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

Classifications

• 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

• H04W52/42

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

• H04W52/38

  TPC being performed in particular situations · CPC title

• H04W52/367 Primary

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

• H04M1/021

  using combined folding and rotation motions (combined with translation movement H04M1/0235) · CPC title