Communication power operating method and electronic device supporting the same

• US 9,615,334 B2
• Filed: 11/25/2015
• Issued: 04/04/2017
• Est. Priority Date: 11/26/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Jung Hyung, Kim, Jung Joon, Van, Ju Ho, Lee, Yu Seon
• Primary Examiner(s): LE, THANH C
• Application Number:
  US14/952,813
• Publication Number:
  US 20160150483A1
• Time in Patent Office: 496 Days
• CPC Class Codes: H04B 17/354 Adjacent channel leakage power
• CPC Class Codes: H04W 52/243 taking into account interferences

Abstract

An electronic device includes a communication interface configured to establish a communication channel; and a controller configured to adjust an amplification current of a signal outputted through the communication channel corresponding to a measured Adjacent channel leakage ratio (ACLR) based on the communication channel, wherein the controller is configured to adjust a size of the amplification current corresponding to a difference between the measured ACLR and a specified condition.

Claims

1. An electronic device comprising:

a communication interface configured to establish a communication channel;

a controller configured to adjust a size of an amplification current associated with a signal output through the communication channel corresponding to a measured adjacent channel leakage ratio (ACLR) based on the communication channel in accordance with a difference between the measured ACLR and a specified condition;

a modulator configured to;

adjust an envelope of a signal outputted from the controller; and

adjust the size of the amplification current in accordance with a control scheme of the controller;

an amplifier configured to amplify a signal using an adjusted current value outputted from the modulator;

a coupler configured to couple a signal from the amplifier; and

a radio frequency (RF) controller configured to;

deliver the measured ACLR associated with the coupled signal from the coupler to the controller; and

output a signal in accordance with the control scheme of the controller to the amplifier.

2. The electronic device of claim 1, wherein the RF controller adjusts the size of the amplification current in accordance with a difference between the measured ACLR and a specified ACLR or a difference between an amplitude of the measured ACLR and an amplitude of the specified ACLR.

3. The electronic device of claim 1, wherein the controller stores a minimum ACLR that is one of ACLRs associated with the measured ACLRs into a memory, the minimum ACLR determining the specified ACLR.

4. The electronic device of claim 1, wherein the controller stores a minimum ACLR that is one of ACLRs associated with entire channels accessible through the communication interface, the minimum ACLR determining the specified ACLR.

5. The electronic device of claim 1, wherein the controller delivers an adjustment value of the amplification current in accordance with a difference between the measured ACLR and the specified ACLR or a difference between an amplitude of the measured ACLR and an amplitude of the specified ACLR to a modulator.

6. The electronic device of claim 1, wherein the controller processes an envelope delay when the measured ACLR is less than the specified ACLR.

7. The electronic device of claim 1, wherein the controller is further configured to:

obtain wireless environment information associated with the communication channel and

adjust the size of the amplification current in accordance with a difference between a selected ACLR associated with the obtained wireless environment information and the measured ACLR.

8. The electronic device of claim 1, wherein the controller adjusts the size of the amplification current in accordance with a difference between the measured ACLR associated with a changed communication channel that is established by a base station and the specified ACLR.

9. The electronic device of claim 1, wherein the controller measures an ACLR in correspondence to a channel allocated to a communication scheme and adjusts the size of the amplification current in accordance with a difference between the measured ACLR associated with the channel and the specified ACLR when the communication scheme is changed.

10. A method for adjusting a communication power, the method comprising:

establishing, by an electronic device, a communication channel;

when a measured adjacent channel leakage ratio (ACLR) corresponding to the communication channel satisfies a specified condition, adjusting, by the electronic device, a size of an amplification current associated with a signal output through the communication channel,

wherein adjusting the size of the amplification current further comprises;

identifying a difference between the measured ACLR and a specified ACLR; and

identifying a difference between an amplitude of the measured ACLR and an amplitude of the specified ACLR.

11. The method of claim 10, wherein adjusting the size of the amplification current comprises:

coupling an output signal of an amplifier that is adjusted in accordance with an output of a radio frequency (RF) controller and an output of a modulator; and

detecting the measured ACLR associated with the coupled output signal.

12. The method of claim 10, further comprises:

storing a minimum ACLR that is one of the measured ACLRs into a memory, wherein the minimum ACLR is determined as a specified ACLR.

13. The method of claim 10, further comprises:

storing a minimum ACLR that is one of ACLRs associated with entire channels accessible through a communication interface establishing the communication channel into a memory, wherein the minimum ACLR is determined as the specified ACLR.

14. The method of claim 10, wherein adjusting the size of the amplification current comprises repeatedly reducing the size of the amplification current by a specified size based on a newly measured ACLR.

15. The method of claim 10, wherein adjusting the size of the amplification current comprises reducing the size of the amplification current in accordance with a difference between the measured ACLR and a specified ACLR.

16. The method of claim 10, further comprises:

processing an envelope delay when the measured ACLR is less than a specified ACLR.

17. The method of claim 10, wherein adjusting the size of the amplification current comprises:

obtaining wireless environment information associated with the communication channel; and

adjusting the size of the amplification current in accordance with a difference between a selected ACLR associated with the wireless environment information and the measured ACLR.

18. The method of claim 10, wherein adjusting the size of the amplification current comprises:

checking whether the communication channel or a communication scheme that is established by a base station is changed;

measuring an ACLR associated with the communication channel that has been changed by a base station or a communication scheme; and

adjusting the size of the amplification current in accordance with a difference between the measured ACLR associated with the changed communication channel and the specified ACLR.