Systems and Methods for Operation Mode Transition In Wireless Communications

• US 20110216681A1
• Filed: 11/22/2010
• Published: 09/08/2011
• Est. Priority Date: 03/05/2010
• Status: Active Grant

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Tao, Ming-Hung, Hsiao, Ying-Chuan
• Granted Patent: US 8,644,204 B2
• Time in Patent Office: Days
• US Class Current: 370/311
• CPC Class Codes: H04W 52/02 Power saving arrangements in wired systems H04L12/12; signaling of mobile application services, e.g. low battery notifications H04W4/20
• CPC Class Codes: H04W 52/0261 managing power supply demand, e.g. depending on battery level
• 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 for a base station to instruct a mobile station to perform an operation mode transition, the method including: receiving battery level information from the mobile station, the battery level information being included in a signaling header; determining, based on the battery level information, if the mobile station can perform an operation mode transition; and instructing the mobile station to perform the operation mode transition, if it is determined that the mobile station can perform the operation mode transition.

Claims

1. A method for a base station to instruct a mobile station to perform an operation mode transition, comprising:

receiving battery level information from the mobile station, the battery level information being included in a signaling header;

determining, based on the battery level information, if the mobile station can perform an operation mode transition; and

instructing the mobile station to perform the operation mode transition, if it is determined that the mobile station can perform the operation mode transition.

2. The method of claim 1, wherein the receiving comprises:

periodically receiving the battery level information from the mobile station.

3. The method of claim 1, wherein the receiving comprises:

polling the mobile station to receive the battery information.

4. The method of claim 1, wherein the receiving comprises:

receiving the battery level information when a battery level of the mobile station changes.

5. The method of claim 1, wherein the receiving comprises:

receiving the battery level information from the mobile station, the battery level information including a parameter indicating whether or not the mobile station is plugged into a power source.

6. The method of claim 5, wherein the determining comprises:

determining that the mobile station can perform an operation mode transition to a client cooperation mode in which the mobile station relays data from the base station to another mobile station, if the parameter indicates that the mobile station is plugged into a power source.

7. The method of claim 1, wherein the receiving comprises:

receiving the battery level information including a parameter indicating that a battery level of the mobile station is not included in the battery level information.

8. The method of claim 1, wherein the receiving comprises:

receiving the battery level information including a parameter indicating a battery level of the mobile station is included in the battery level information, and including the battery level indicating a percentage of remaining battery power of the mobile station.

9. The method of claim 8, wherein when the mobile station operates in an active mode, the determining comprises:

determining that the mobile station can perform an operation mode transition to a sleep mode, if the battery level is below a first predetermined threshold value;

determining that the mobile station can perform an operation mode transition to an idle mode, if the battery level is below the first predetermined threshold value and there is no data exchange between the base station and the mobile station for a predetermined period of time; and

determining that the mobile station can perform an operation mode transition to a deregistration with content retention (DCR) mode, if the battery level is below a second predetermined threshold value.

10. The method of claim 8, wherein when the mobile station operates in a sleep mode, the determining comprises:

determining that the mobile station can perform an operation mode transition to an active mode, if the battery level is above a first predetermined threshold value;

determining that the mobile station can perform an operation mode transition to an idle mode, if there is no data exchange between the base station and the mobile station for a predetermined period of time; and

determining that the mobile station can perform an operation mode transition to a deregistration with content retention (DCR) mode, if the battery level is below a second predetermined threshold value.

11. The method of claim 1, wherein when the base station determines that the mobile station can perform an operation mode transition to a sleep mode or to an idle mode, the method further comprises:

determining, based on the battery level information, configuration parameters to be used for the mobile station in the sleep mode or the idle mode.

12. A base station to instruct a mobile station to perform an operation mode transition, comprising:

a processor, the processor being configured to;

receive battery level information from the mobile station, the battery level information being included in a signaling header;

determine, based on the battery level information, if the mobile station can perform an operation mode transition; and

instruct the mobile station to perform the operation mode transition, if it is determined that the mobile station can perform the operation mode transition.

13. A method for a mobile station to report battery level information to a base station, comprising:

including the battery level information in a signaling header; and

transmitting to the base station the battery level information included in the signaling header.

14. The method of claim 13, further comprising:

including a flow identifier (FID) in the signaling header, the FID indicating an identification of the signaling header.

15. The method of claim 13, further comprising:

including a type indicator in the signaling header, the type indicator indicating that a type of the signaling header is to report battery level information.

16. The method of claim 13, wherein the including comprises:

including a parameter in the signaling header, the parameter indicating whether or not the mobile station is plugged into a power source.

17. The method of claim 13, wherein the including comprises:

including a battery level indication in the signaling header, the battery level indication indicating that a battery level of the mobile station is included in the signaling header.

18. The method of claim 13, wherein the including comprises:

including a battery level indication in the signaling header, the battery level indication indicating that a battery level of the mobile station is not included in the signaling header.

19. The method of claim 13, wherein the including comprises:

including, if a battery level indication in the signaling header indicates that a battery level of the mobile station is included in the signaling header, the battery level of the mobile station in the signaling header, the battery level indicating a percentage of remaining battery power of the mobile station.

20. The method of claim 13, further comprising:

providing the signaling header with a dynamic size.

21. The method of claim 13, wherein the transmitting comprises:

periodically transmitting the battery level information to the base station.

22. The method of claim 13, wherein the transmitting comprises:

transmitting, when a battery level of the mobile station changes, the battery level information to the base station.

23. The method of claim 13, wherein the transmitting comprises:

transmitting, when polled by the base station, the battery level information to the base station.

24. A mobile station to report battery level information to a base station, comprising:

a processor, the processor being configured to;

include the battery level information in a signaling header; and

transmit to the base station the battery level information included in the signaling header.