Methods and apparatus for communicating transmission backlog information

• US 8,830,827 B2
• Filed: 09/14/2012
• Issued: 09/09/2014
• Est. Priority Date: 12/22/2005
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Das, Arnab, Laroia, Rajiv, Li, Junyi
• Primary Examiner(s): ANWAR, MOHAMMAD S
• Application Number:
  US13/616,644
• Publication Number:
  US 20130242888A1
• Time in Patent Office: 725 Days
• Field of Search: 370/229, 370/231, 370/294, 370/395.4
• US Class Current: 370/229
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/52 based on load

Abstract

An uplink dedicated control channel reporting structure includes a plurality of different bit size reports, e.g. 1 bit, 3 bit and 4 bit reports, for reporting a wireless terminal'"'"'s backlog information of uplink traffic request group queues. Smaller bit size reports are transmitted more frequently than larger reports. A 1 bit request report indicates whether or not there are any MAC frames of information to be communicated in a set of two request group queues. A 3 bit request report indicates an amount of backlog information corresponding to a first set of request group queues and a second set of request group queues. A 4 bit request report indicates an amount of backlog information corresponding to a set of request group queues. The 4 bit request report is capable of reporting information on any of a plurality of uplink traffic channel request group queues being maintained by the wireless terminal.

Claims

1. A method of operating a wireless terminal, the method comprising:

generating at least one backlog information report;

transmitting backlog information reports of different sizes at different times; and

wherein transmitting backlog information reports of different sizes at different times includes;

transmitting, using a remaining portion of an uplink communications resource allocated to said wireless terminal that is used to transmit other information, a first fixed size backlog information report including a first number of bits.

2. The method of claim 1, wherein said backlog information reports of different sizes include a backlog information report of a first fixed size and a backlog information report of a second fixed size, said second fixed size being larger than said first fixed size;

and

wherein said second fixed size includes a number of bits which is too large to fit in said remaining portion of said uplink communications resource used to transmit said first fixed size backlog information report.

3. The method of claim 2,

wherein said generating at least one backlog information report includes generating backlog information reports of a plurality of different predetermined fixed sizes;

and

wherein said first fixed size is the smallest predetermined fixed size in said plurality of different predetermined fixed sizes.

4. The method of claim 2, wherein the second fixed size report communicates information corresponding to more transmit queues than said first fixed size report.

5. The method of claim 4, wherein said transmit queues are transmit buffers.

6. The method of claim 5, wherein one of said transmit queues corresponds to control information and another one of said transmit queues corresponds to voice traffic.

7. The method of claim 4, wherein different transmit queues correspond to data having different priorities.

8. The method of claim 2, wherein said first fixed size backlog information report uses all of the bits in said remaining portion of said uplink communications resource allocated to said wireless terminal that is used to transmit other information.

9. The method of claim 1, wherein said backlog information reports of different sizes include a backlog information report of a first fixed size and a backlog information report of a second fixed size, said second fixed size being larger than said first fixed size;

and

wherein transmitting backlog information reports of different sizes includes transmitting multiple backlog information reports of said second fixed size, different ones of said multiple backlog information reports of the second fixed size communicating information corresponding to different numbers of queues.

10. A wireless terminal comprising:

means for generating backlog information reports;

means for transmitting backlog information reports of different sizes at different times; and

wherein said means for transmitting backlog information reports of different sizes at different times transmit, using a remaining portion of an uplink communications resource allocated to said wireless terminal that is used to transmit other information, a first fixed size backlog information report including a first number of bits.

11. The wireless terminal of claim 10, wherein said means for generating backlog information reports generate backlog information reports including reports of a plurality of different predetermined fixed sizes;

and

wherein said first fixed size is the smallest predetermined fixed size in said plurality of different predetermined fixed sizes.

12. The wireless terminal of claim 11, wherein said different predetermined fixed sizes include a first fixed size and a second fixed size, the second fixed size being larger than said first fixed size;

and

wherein said second fixed size includes a number of bits which is too large to fit in said remaining portion of said uplink communications resource used to transmit said first fixed size backlog information report.

13. The wireless terminal of claim 11, wherein the second fixed size report communicates information corresponding to more transmit queues than said first fixed size report.

14. The wireless terminal of claim 13, wherein different transmit queues correspond to data having different priorities.

15. The wireless terminal of claim 11,

wherein said first fixed size backlog information report uses all of the bits in said remaining portion of said uplink communications resource allocated to said wireless terminal that is used to transmit other information.

16. The wireless terminal of claim 10, wherein said backlog information reports of different sizes include a backlog information report of a first fixed size and a backlog information report of a second fixed size, said second fixed size being larger than said first fixed size;

and

wherein said means for transmitting backlog information reports of different sizes transmit multiple backlog information reports of said second fixed size, different ones of said multiple backlog information reports of the second fixed size communicating information corresponding to different numbers of queues.

17. A non-transitory machine readable medium for use in a wireless terminal, comprising:

instructions for causing at least one processor in said wireless terminal to generate at least one backlog information report; and

instructions for causing said at least one processor to control said wireless terminal to transmit backlog information reports of different sizes at different times, said instructions for causing said at least one processor to transmit backlog information reports of different sizes at different times including instructions for causing said at least one processor to transmit, using a remaining portion of an uplink communications resource allocated to said wireless terminal that is used to transmit other information, a first fixed size backlog information report including a first number of bits.

18. The non-transitory machine readable medium of claim 17, wherein said backlog information reports of different sizes include a backlog information report of a first fixed size and a backlog information report of a second fixed size, said second fixed size being larger than said first fixed size;

and

wherein said non-transitory machine readable medium further includes instructions for causing said at least one processor to transmit multiple backlog information reports of said second fixed size as part of transmitting backlog information reports of different sizes, different ones of said multiple backlog information reports of the second fixed size communicating information corresponding to different numbers of queues.

19. A wireless terminal comprising:

at least one processor configured to;

generate backlog information reports;

transmit backlog information reports of different sizes at different times; and

transmit, using a remaining portion of an uplink communications resource allocated to said wireless terminal that is used to transmit other information, a first fixed size backlog information report including a first number of bits, as part of being configured to transmit backlog information reports of different sizes at different times; and

a memory coupled to said at least one processor.

20. The wireless terminal of claim 19, wherein said at least one processor is further configured to generate backlog information reports of a plurality of different predetermined fixed sizes, as part of being configured to generate backlog information reports;

and

wherein said first fixed size is the smallest predetermined fixed size in said plurality of different predetermined fixed sizes.

21. The wireless terminal of claim 20, wherein said different predetermined fixed sizes include a first fixed size and a second fixed size, the second fixed size being larger than said first fixed size;

and

wherein said second fixed size includes a number of bits which is too large to fit in said remaining portion of said uplink communications resource used to transmit said first fixed size backlog information report.

22. The wireless terminal of claim 20, wherein the second fixed size report communicates information corresponding to more transmit queues than said first fixed size report.

23. The wireless terminal of claim 20, wherein said first fixed size backlog information report uses all of the bits in said remaining portion of said up link communications resource allocated to said wireless terminal that is used to transmit other information.

24. The wireless terminal of claim 19, wherein said backlog information reports of different sizes include a backlog information report of a first fixed size and a backlog information report of a second fixed size, said second fixed size being larger than said first fixed size;

and

wherein said at least one processor is further configured to transmit multiple backlog information reports of said second fixed size as part of being configured to transmit backlog information reports of different sizes, different ones of said multiple backlog information reports of the second fixed size communicating information corresponding to different numbers of queues.