Power consumption debugging in mobile terminals

• US 8,200,209 B2
• Filed: 12/21/2005
• Issued: 06/12/2012
• Est. Priority Date: 02/16/2005
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Pehrsson, Göran, Långberg, Anders
• Primary Examiner(s): Corsaro, Nick
• Assistant Examiner(s): Johnson, Gerald
• Application Number:
  US11/312,333
• Publication Number:
  US 20060181560A1
• Time in Patent Office: 2,365 Days
• Field of Search: 455 6711- 677, 455423-425, 320/134, 320/149, 713300-340
• US Class Current: 455/423
• CPC Class Codes: G01R 21/133 by using digital technique
• CPC Class Codes: G01R 31/3648 comprising digital calculation means, e.g. for performing an algorithm
• CPC Class Codes: G01R 31/382 Arrangements for monitoring battery or accumulator variables, e.g. SoC

Abstract

Power consumption of an electronic device is measured by using circuitry within the electronic device to make power consumption measurements of the electronic device at predetermined time intervals. Each of the power consumption measurements is provided to a user of the device. This may involve incorporating each of the power consumption measurements in a debug printout generated by the electronic device. The measurements may be initiated by retrieving a parameter from a storage area within the electronic device, and initiating the power consumption measuring techniques in response to detecting that the retrieved parameter is in a predetermined state.

Claims

1. A method of indicating power consumption of an electronic device, the method comprising:

using circuitry within the electronic device to make power consumption-indicating measurements of the electronic device at predetermined time intervals; and

providing each of the power consumption-indicating measurements to a user of the device,

wherein providing each of the power consumption-indicating measurements to a user of the device comprises incorporating each of the power consumption-indicating measurements in a debug printout generated by the electronic device, wherein the debug printout includes information that indicates one or more software modes/states of the electronic device at one or more points in time,

wherein incorporating each of the power consumption-indicating measurements in the debug printout generated by the device comprises incorporating the power consumption-indicating measurements at respective locations of the debug printout that correspond to respective measurement times of the power consumption-indicating measurements to thereby synchronize the power consumption-indicating measurements with the information that indicates the one or more software modes/states of the electronic device at one or more points in time.

2. The method of claim 1, wherein using circuitry within the electronic device to make power consumption-indicating measurements of the electronic device comprises:

the

detecting a voltage drop across a resistor that is in series with a power supply of the electronic device;

converting the detected voltage drop into a charge value; and

accumulating a number of charge values over a predetermined measurement time period.

3. The method of claim 2, comprising:

generating an average power consumption measurement by dividing the accumulated charge values by the measurement time period.

4. The method of claim 1, comprising:

retrieving a parameter from a storage area within the electronic device; and

initiating the current consumption measuring method in response to detecting that the retrieved parameter is in a predetermined state.

5. The method of claim 1, wherein the electronic device is a mobile terminal.

6. An apparatus for measuring current consumption of an electronic device, the apparatus comprising:

logic circuitry within the electronic device that makes current consumption measurements of the electronic device at predetermined time intervals; and

logic circuitry that provides each of the current consumption measurements to a user of the device,

wherein the logic circuitry that provides each of the current consumption measurements to a user of the device comprises logic circuitry that incorporates each of the current consumption measurements in a debug printout generated by the electronic device, wherein the debug printout includes information that indicates one or more software modes/states of the electronic device at one or more points in time,

wherein the logic circuitry that incorporates each of the power consumption-indicating measurements in the debug printout generated by the device comprises logic circuitry that incorporates the power consumption-indicating measurements at respective locations of the debug printout that correspond to respective measurement times of the power consumption-indicating measurements to thereby synchronize the power consumption-indicating measurements with the information that indicates the one or more software modes/states of the electronic device at one or more points in time.

7. The apparatus of claim 6, wherein the logic circuitry within the electronic device that makes current consumption measurements of the electronic device comprises:

logic circuitry that detects a voltage drop across a resistor that is in series with a power supply of the electronic device;

logic circuitry that converts the detected voltage drop into a charge value; and

logic circuitry that accumulates a number of charge values over a predetermined measurement time period.

8. The apparatus of claim 7, comprising:

logic circuitry that generates an average current consumption measurement by dividing the accumulated charge values by the measurement time period.

9. The apparatus of claim 6, comprising:

logic circuitry that retrieves a parameter from a storage area within the electronic device; and

logic circuitry that initiates the current consumption measuring method in response to detecting that the retrieved parameter is in a predetermined state.

10. The apparatus of claim 6, wherein the electronic device is a mobile terminal.