METHOD AND APPARATUS FOR REDUCING POWER CONSUMPTION IN MOBILE TERMINAL

• US 20100271176A1
• Filed: 04/23/2010
• Published: 10/28/2010
• Est. Priority Date: 04/28/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KIM, Dong-Hoon, KIM, Ki-Soo
• Granted Patent: US 8,527,018 B2
• Time in Patent Office: Days
• US Class Current: 340/7.360
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An apparatus and a method for reducing battery consumption of a mobile terminal are provided. More particularly, an apparatus and a method for reducing battery consumption by allowing a mobile terminal to perform a wakeup process by expiration or update of a timer which coincides with a paging period in order to reduce battery consumption. The controller reduces a frequency of waking up from a sleep mode by matching a wakeup time set by a timer to a paging period with a certain condition is met.

Claims

1. An apparatus for reducing power consumption in a mobile terminal, comprising a timer and a controller for reducing a frequency of waking up from a sleep mode by matching a wakeup time set by the timer to occur at a paging period of the mobile terminal.

2. The apparatus of claim 1, wherein the controller comprises:

a wakeup time determination unit for determining a duration of the wakeup time that is a multiple of the paging period; and

a timer setting unit for setting the timer that allows wakeup to be performed at the multiple of the paging period determined by the wakeup time determination unit.

3. The apparatus of claim 2, wherein the timer is set when a difference between multiples of a timer period and the paging period is less than a predetermined threshold value.

4. The apparatus of claim 2, wherein the wakeup time determination unit determines a quotient obtained by dividing the timer period by the paging period to determine whether to set the timer.

5. The apparatus of claim 4, wherein the wakeup time determination unit determines whether to set the timer based on a predetermined data.

6. The apparatus of claim 5, wherein the predetermined data comprises:

7. A method for reducing power consumption in a mobile terminal, the method comprising reducing a frequency of waking up from a sleep mode by matching a wakeup time defined by a paging period with a wakeup time defined by a timer of the mobile terminal.

8. The method of claim 7, wherein the matching of the wakeup time comprises:

determining a multiple of the paging period to be set as the wakeup time by the timer; and

setting the timer that allows wakeup to be performed at the determined multiple of the paging period.

9. The method of claim 8, wherein the matching of the wakeup time is performed when a difference between multiples of a timer period and the paging period is less than a predetermined threshold value.

10. The method of claim 8, wherein the multiple of the paging period to be set as the wakeup time set by the timer is determined by dividing a timer period by the paging period.

11. The method of claim 10, wherein the multiple of the paging period to be set as the wakeup time by the timer is determined using predetermined data.

12. The method of claim 11, wherein the predetermined data comprises:

13. The method of claim 7, further comprising receiving information related to the paging period.

14. A method for a mobile terminal to reduce power consumption, the method comprising:

receiving information related to a paging period;

evaluating a predetermined condition based on a predetermined data; and

outputting a signal to change a wakeup state of the mobile terminal if the predetermined condition is met, wherein changing the wake up state comprises setting a time set by a timer of the mobile terminal to coincide with the paging period when the predetermined condition is met.

15. The method of claim 14, wherein the predetermined condition is met when a difference between multiples of a timer period and the paging period is less than a predetermined threshold value.

16. The method of claim 14, wherein the mobile terminal determines the paging period by determining a Broadcast Control CHannel (BCCH) provided from a network.