Method and system for optimizing power resources in wireless devices

• US 8,897,189 B2
• Filed: 03/26/2012
• Issued: 11/25/2014
• Est. Priority Date: 05/01/2002
• Status: Expired due to Fees

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Goldberg, Steven Jeffrey
• Primary Examiner(s): Gelin, Jean
• Application Number:
  US13/430,240
• Publication Number:
  US 20120182941A1
• Time in Patent Office: 974 Days
• Field of Search: 455/459, 455/466, 455/502, 455/515, 455/458, 455/403, 455/550.1, 455/522, 455/68, 455/571, 455/572, 455/574, 370/225, 370/242, 370/318, 370/389, 370/311, 370/312, 370/324, 370/349, 370/350
• US Class Current: 370/311
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 68/025 Indirect paging
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method and system is disclosed for a device to quickly determine if data is being sent to it. If no data is being sent to the device, the device may return to a sleep mode so as to conserve energy. The present invention includes organizing and transmitting, one at a time, all device destination identifiers. If a message listing search indicates that no message is being sent for a device, the device can continue with any other activity that needs servicing, or if no other activity is pending, it may shut down to conserve power until the next wake up period arrives. If the search returns a positive indication, the count value when the identifier is found can be used to determine the location of the pointer to the message.

Claims

1. A method for use in a wireless device, the method comprising:

the wireless device receiving a message listing via a wireless interface,

wherein the message listing includes a plurality of message pointers,

wherein each message pointer from the plurality of message pointers points to a respective different message;

the wireless device detecting a message pointer that corresponds to the wireless device from the plurality of message pointers; and

the wireless device receiving, via the wireless interface, data pointed to by the detected message pointer.

2. The method of claim 1,

wherein the message listing includes a plurality of destination identifiers,

wherein each message pointer from the plurality of message pointers is associated with a destination identifier from the plurality of destination identifiers, and

wherein the detecting the message pointer includes comparing the destination identifiers from the plurality of destination identifiers to an identifier of the wireless device.

3. The method of claim 1, wherein the message listing and the data are received from a base station.

4. The method of claim 1, wherein each message pointer from the plurality of message pointers indicates when a message will be available for reception.

5. The method of claim 4, wherein each message pointer from the plurality of message pointers indicates a timeslot during which a message will be available for reception.

6. The method of claim 1, wherein each message pointer from the plurality of message pointers includes carrier channel information, timing information, and channel coding information.

7. The method of claim 1, wherein the message listing further comprises a count of destination identifiers in the message listing.

8. The method of claim 1, wherein the message listing further comprises a list terminator.

9. The method of claim 1, further comprising:

entering into a sleep mode on a condition that the wireless device does not detect a message pointer from the plurality of message pointers that corresponds to the wireless device.

10. The method of claim 9, further comprising:

waking up at a predetermined time to determine whether a message pointer from the plurality of message pointers corresponds to the wireless device.

11. A wireless device, comprising:

a receiver configured to receive a message listing,

wherein the message listing includes a plurality of message pointers,

wherein each message pointer from the plurality of message pointers points to a respective different message;

a processor configured to detect a message pointer that corresponds to the wireless device from the plurality of message pointers; and

wherein the receiver is further configured to receive data pointed to by the detected message pointer.

12. The wireless device of claim 11,

wherein the message listing includes a plurality of destination identifiers,

wherein each message pointer from the plurality of message pointers is associated with a destination identifier from the plurality of destination identifiers, and

wherein the processor is configured to detect the destination identifier by comparing the destination identifiers from the plurality of destination identifiers to an identifier of the wireless device.

13. The wireless device of claim 11, wherein the receiver is configured to receive the message listing and the data from a base station.

14. The wireless device of claim 11, wherein each message pointer from the plurality of message pointers indicates when a message will be available for reception.

15. The wireless device of claim 14, wherein each message pointer from the plurality of message pointers indicates a timeslot during which a message will be available for reception.

16. The wireless device of claim 11, wherein each message pointer from the plurality of message pointers includes carrier channel information, timing information, and channel coding information.

17. The wireless device of claim 11, wherein the message listing further comprises a count of destination identifiers in the message listing.

18. The wireless device of claim 11, wherein the message listing further comprises a list terminator.

19. The wireless device of claim 11, further comprising:

the processor configured to enter into a sleep mode on a condition that the wireless device does not detect a message pointer from the plurality of message pointers that corresponds to the wireless device.

20. The wireless device of claim 19, further comprising:

the processor configured to wake up at a predetermined time to determine whether a message pointer from the plurality of message pointers corresponds to the wireless device.

21. A method for use in a base station, the method comprising:

the base station transmitting a message listing to a wireless device,

wherein the message listing includes a plurality of message pointers,

wherein each message pointer from the plurality of message pointers points to a respective different message, such that the wireless device is able to detect a message pointer that corresponds to the wireless device from the plurality of message pointers; and

the base station transmitting data to the wireless device that is pointed to by the message pointer that corresponds to the wireless device.

22. The method of claim 21, wherein the message listing includes a plurality of destination identifiers, and wherein each message pointer from the plurality of message pointers is associated with a destination identifier from the plurality of destination identifiers.

23. The method of claim 21, wherein each message pointer from the plurality of message pointers indicates when a message will be available for reception.

24. The method of claim 23, wherein each message pointer from the plurality of message pointers indicates a timeslot during which a message will be available for reception.

25. The method of claim 21, wherein each message pointer from the plurality of message pointers includes carrier channel information and timing information.

26. The method of claim 21, wherein the message listing further comprises a list terminator or a count of destination identifiers in the message listing.

27. The method of claim 21, wherein the wireless device enters into a sleep mode on a condition that the wireless device does not detect a message pointer from the plurality of message pointers that corresponds to the wireless device.

28. The method of claim 27, wherein the wireless device wakes up at a predetermined time to determine whether a message pointer from the plurality of message pointers corresponds to the wireless device.