Methods and systems for power savings using a message indication header

• US 8,498,607 B2
• Filed: 06/12/2008
• Issued: 07/30/2013
• Est. Priority Date: 06/12/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Park, Jong Ro, Lee, Chun Woo, Oh, Kyoung Cheol
• Primary Examiner(s): Nguyen, Simon
• Application Number:
  US12/137,978
• Publication Number:
  US 20090312073A1
• Time in Patent Office: 1,874 Days
• Field of Search: 4553431-3434, 455/574, 370/311, 370/349
• US Class Current: 455/343.1
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• 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 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Techniques for signaling a mobile communications device in a special operating state that data bursts contain messages relevant to the special operating state. The signaling may be implemented using one or more bits in a frame control header (FCH). As a result, the mobile communication device may be decode the FCH first and decode data bursts only if there is an indication the data bursts contain a relevant message. Power savings may be achieved at the mobile communications device by avoiding decoding data bursts with no relevant messages.

Claims

1. A method for selectively decoding frame data in a wireless communication device while the device is in a special operating state, comprising:

receiving frame data including one or more data bursts and a frame control header with a message indication field while operating in the special operating state;

decoding the frame control header prior to decoding the one or more data bursts; and

determining whether to decode the one or more data bursts based at least in part on whether the message indication field comprises a set of message indications bits which indicate a presence of a power save related message,

wherein a first configuration of the set of message indication bits indicates the presence of a channel message identifying physical characteristics of the channel,

wherein a second configuration of the set of message indication bits indicates the presence of a traffic message signifying the arrival of traffic destined for the device, and

wherein a third configuration of the set of message indication bits indicates the presence of a update message signifying a need for the device to provide a location update to a base station.

5. The method of claim 1, wherein the determining comprises determining to decode the one or more data bursts where the frame control header comprises a message relevant to the special operating state.

6. The method of claim 5, further comprising:

decoding at least one of the one or more data bursts, wherein the message comprises at least one of an uplink channel description (UCD) and a downlink channel description (DCD), and wherein the special operating state comprises a initial acquisition state.

7. The method of claim 5, further comprising:

decoding at least one of the one or more data bursts, wherein the message signifies the arrival of traffic destined for the device, and wherein the special operating state comprises a sleep mode.

8. The method of claim 5, further comprising:

decoding at least one of the one or more data bursts wherein the message comprises a paging message signifying the device to provide a location update to a base station, and wherein the special operating state comprises a idle mode.

9. The method of claim 1, wherein the determining comprises determining not to decode the one or more data bursts where the frame control header does not comprise a message relevant to the special operating state.

10. The method of claim 9, further comprising:

powering down one or more components for a sleep interval; and

powering up the powered down components during a listening interval, wherein the special operating state comprises a sleep mode.

11. The method of claim 1, wherein the first configuration of the set of message indication bits is indicated by a first bit, wherein the second configuration of the set of message indication bits is indicated by a second bit, and wherein the third configuration of the set of message indication bits is indicated by a third bit.

12. The method of claim 1, wherein the first configuration is indicated by a first combination of bit values for the set of message indication bits, wherein the second configuration is indicated by a second combination of bit values for the set of message indication bits, wherein the third configuration is indicated by a third combination of bit values for the set of message indication bits.

2. A mobile station for selectively decoding frame data while the in a special operating state, comprising:

logic for receiving frame data including one or more data bursts and a frame control header with a message indication field while operating in the special operating state;

logic for decoding the frame control header prior to decoding the one or more data bursts; and

logic for determining whether to decode the one or more data bursts based at least in part on whether the message indication field comprises a set of message indications bits which indicate a presence of a power save related message,

wherein a first configuration of the set of message indication bits indicates the presence of a channel message identifying physical characteristics of the channel,

wherein a second configuration of the set of message indication bits indicates the presence of a traffic message signifying the arrival of traffic destined for the device, and

wherein a third configuration of the set of message indication bits indicates the presence of a update message signifying a need for the device to provide a location update to a base station.

13. The mobile station of claim 2, wherein the logic for determining determines to decode the one or more data bursts where the frame control header comprises a message relevant to the special operating state.

14. The mobile station of claim 13, further comprising:

logic for decoding at least one of the one or more data bursts, wherein the message comprises at least one of an uplink channel description (UCD) and a downlink channel description (DCD), and wherein the special operating state comprises a initial acquisition state.

15. The mobile station of claim 13, further comprising:

logic for decoding at least one of the one or more data bursts, wherein the message signifies the arrival of traffic destined for the device, and wherein the special operating state comprises a sleep mode.

16. The mobile station of claim 13, further comprising:

logic for decoding at least one of the one or more data bursts, wherein the message comprises a paging message signifying the device to provide a location update to a base station, and wherein the special operating state comprises a idle mode.

17. The mobile station of claim 2, wherein the logic for determining determines not to decode the one or more data bursts where the frame control header does not comprise a message relevant to the special operating state.

18. The mobile station of claim 17, further comprising:

logic for powering down one or more components for a sleep interval; and

logic for powering up the powered down components during a listening interval, wherein the special operating state comprises a sleep mode.

3. A mobile station for selectively decoding frame data while the in a special operating state, comprising:

means for receiving frame data including one or more data bursts and a frame control header with a message indication field while operating in the special operating state;

means for decoding the frame control header prior to decoding the one or more data bursts; and

means for determining whether to decode the one or more data bursts based at least in part on whether the message indication field comprises a set of message indications bits which indicate a presence of a power save related message,

wherein a first configuration of the set of message indication bits indicates the presence of a channel message identifying physical characteristics of the channel,

wherein a second configuration of the set of message indication bits indicates the presence of a traffic message signifying the arrival of traffic destined for the device, and

wherein a third configuration of the set of message indication bits indicates the presence of a update message signifying a need for the device to provide a location update to a base station.

19. The mobile station of claim 3, wherein the means for determining determines to decode the one or more data bursts where the frame control header comprises a message relevant to the special operating state.

20. The mobile station of claim 19, further comprising:

means for decoding at least one of the one or more data bursts, wherein the message comprises at least one of an uplink channel description (UCD) and a downlink channel description (DCD), and wherein the special operating state comprises a initial acquisition state.

21. The mobile station of claim 19, further comprising:

means for decoding at least one of the one or more data bursts, wherein the message signifies the arrival of traffic destined for the device, and wherein the special operating state comprises a sleep mode.

22. The mobile station of claim 19, further comprising:

means for decoding at least one of the one or more data bursts, wherein the message comprises a paging message signifying the device to provide a location update to a base station, and wherein the special operating state comprises a idle mode.

23. The mobile station of claim 3, wherein the means for determining determines not to decode the one or more data bursts where the frame control header does not comprise a message relevant to the special operating state.

24. The mobile station of claim 23, further comprising:

means for powering down one or more components for a sleep interval; and

means for powering up the powered down components during a listening interval, wherein the special operating state comprises a sleep mode.

4. A computer-program product for processing data for selectively decoding frame data in a wireless communication device while the device is in a special operating state comprising a computer readable medium having a set of instructions stored thereon, the set of instructions being executable by one or more processors and the set of instructions comprising:

instructions for receiving frame data including one or more data bursts and a frame control header with a message indication field while operating in the special operating state;

instructions for decoding the frame control header prior to decoding the one or more data bursts; and

instructions for determining whether to decode the one or more data bursts based at least in part on whether the message indication field comprises a set of message indications bits which indicate a presence of a power save related message,

wherein a first configuration of the set of message indication bits indicates the presence of a channel message identifying physical characteristics of the channel,

wherein a second configuration of the set of message indication bits indicates the presence of a traffic message signifying the arrival of traffic destined for the device, and

wherein a third configuration of the set of message indication bits indicates the presence of a update message signifying a need for the device to provide a location update to a base station.

25. The computer-program product of claim 4, wherein the instructions for determining determine to decode the one or more data bursts where the frame control header comprises a message relevant to the special operating state.

26. The computer-program product of claim 25, wherein the set of instructions further comprise:

instructions for decoding at least one of the one or more data bursts, wherein the message comprises at least one of an uplink channel description (UCD) and a downlink channel description (DCD), and wherein the special operating state comprises a initial acquisition state.

27. The computer-program product of claim 25, wherein the set of instructions further comprise:

instructions for decoding at least one of the one or more data bursts, wherein the message signifies the arrival of traffic destined for the device, and wherein the special operating state comprises a sleep mode.

28. The computer-program product of claim 25, wherein the set of instructions further comprise:

instructions for decoding at least one of the one or more data bursts, wherein the message comprises a paging message signifying the device to provide a location update to a base station, and wherein the special operating state comprises a idle mode.

29. The computer-program product of claim 4, wherein the instructions for determining determine not to decode the one or more data bursts where the frame control header does not comprise a message relevant to the special operating state.

30. The computer-program product of claim 29, wherein the set of instructions further comprise:

instructions for powering down one or more components for a sleep interval; and

instructions for powering up the powered down components during a listening interval, wherein the special operating state comprises a sleep mode.