Method of providing notification for battery power conservation in a wireless system

• US 7,583,984 B2
• Filed: 08/11/2006
• Issued: 09/01/2009
• Est. Priority Date: 08/12/2005
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Suk Woo, Yoon, Young Cheul, Sun, Li-Hsiang, Kim, Hobin, Wang, Shu, Kim, Sang Gook
• Primary Examiner(s): NGUYEN, SIMON
• Application Number:
  US11/464,150
• Publication Number:
  US 20070057767A1
• Time in Patent Office: 1,117 Days
• Field of Search: 4553431-3435, 455/412.1, 455/522, 455/572, 455/574, 455/127.5, 340 732- 738, 340/539.3
• US Class Current: 455/572
• CPC Class Codes: G06F 1/3228 Monitoring task completion, e.g. by use of idle timers, stop commands or wait commands
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: H04W 52/0277 according to available power supply, e.g. switching off when a low battery condition is detected
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method of executing to battery power consumption between an access terminal (AT) and an access network (AN) in a wireless communication system is disclosed. More specifically, the method includes transmitting a notification message to the AN, receiving a confirmation message from the AN, and entering the power-saving mode according to the determined power saving mode. Here, the notification message includes at least one of battery life information and a power-saving mode request, and the confirmation message includes a determined power saving mode which is based on the at least one of battery life information and the power-saving mode request.

Claims

1. A method of executing battery power conservation procedure between an access terminal (AT) and an access network (AN) in a wireless communication system, the method comprising:

transmitting a notification message to the AN, wherein the notification message includes at least one of battery life information and a power-saving mode request;

receiving a confirmation message from the AN, wherein the confirmation message includes a determined power saving mode based on the at least one of battery life information and the power-saving mode request; and

entering the power-saving mode according to the determined power saving mode,

wherein the notification message further includes a LeftOverBatteryIndicatorIncluded field, a LeftoverBatteryLifeIndicator field, a PowerSavingModeIncluded field, and a PowerSavingMode field.

2. The method of claim 1, wherein the power-saving mode request includes a paging cycle index.

3. The method of claim 1, wherein the battery life information includes an amount of leftover battery power.

4. The method of claim 1, wherein the battery life information is used to fine tune quality of service (QoS) reservations.

5. The method of claim 1, wherein the notification message is a route update message.

6. The method of claim 1, wherein each of the LeftOverBatteryIndicatorIncluded field and the PowerSavingModeIncluded field is represented by a single bit.

7. The method of claim 1, wherein the PowerSavingMode field conveys information regarding requested paging cycle, usage of Quick Paging Cycle, and discontinuous transmission/reception preferred by an access terminal (AT) and a discontinuous transmission and reception, and an enhanced silence.

8. The method of claim 1, wherein the PowerSavingMode field includes a request by an access terminal (AT) for an emergency-fall-back-to-regular mode.

9. The method of claim 8, wherein the emergency-fall-back-to-regular mode is invoked when the AT has data to send to the AN.

10. The method of claim 1, wherein the confirmation message includes a PowerSavingModeIncluded field and a PowerSavingMode field.

11. The method of claim 10, wherein the PowerSavingModeIncluded field is represented by a single bit.

12. The method of claim 10, wherein the PowerSavingMode field conveys information regarding requested paging cycle, usage of Quick Paging Cycle, and discontinuous transmission/reception to be determined by the AN based on the at least one of battery life information, the power-saving mode request, and information on forward link backlog associated with the AT.

13. The method of claim 1, further comprising:

receiving a request message from the AN, wherein the request message includes a LeftOverBatteryLifeIndicatortobeIncluded field and a PowerSavingModetobeIncluded field.

14. The method of claim 13, wherein each of the LeftOverBatteryLifeIndicatortobeIncluded field and the PowerSavingModetobeIncluded field is represented by a single bit.

15. A method of executing battery power conservation procedure between an access terminal (AT) and an access network (AN) in a wireless communication system, the method comprising:

receiving a notification message from the AT, wherein the notification message includes at least one of battery life information and a power-saving mode request; and

transmitting a confirmation message to the AT, wherein the confirmation message includes a determined power saving mode based on the at least one of battery life information and the power-saving mode request,

wherein the notification message further includes a LeftOverBatteryIndicatorIncluded field, a LeftoverBatteryLifeIndicator field, a PowerSavingModeIncluded field, and a PowerSavingMode field.

16. The method of claim 15, wherein information on the LeftOverBatteryLifeIndicator field is transferred between a serving AN and a target AN when the AT moves to the target AN.

17. The method of claim 16, wherein the serving AN is the AN which is currently serving the AT.

18. The method of claim 16, wherein the target AN is an AN by which the AT is seeking to be served.

19. The method of claim 15, wherein the power saving mode relates to shutting down part of the AT'"'"'s subsystems to conserve power for a specified duration.

20. The method of claim 19, further comprising transmitting a request message to the AT, wherein the request message includes a LeftOverBatteryLifeIndicatortobeIncluded field and a PowerSavingModetobeIncluded field.