Methods and apparatus for communicating transmission backlog information

• US 9,572,179 B2
• Filed: 07/14/2006
• Issued: 02/14/2017
• Est. Priority Date: 12/22/2005
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Das, Arnab, Rangan, Sundeep, Anigstein, Pablo, Srinivasan, Murari
• Primary Examiner(s): Phu, Sanh D
• Application Number:
  US11/487,054
• Publication Number:
  US 20070149129A1
• Time in Patent Office: 3,868 Days
• Field of Search: 455/68, 455/67.11, 455/450, 455/509, 455/515, 370/230, 370/328, 370/498
• US Class Current: 1/1
• CPC Class Codes: H04B 17/24 with feedback of measurements to the transmitter
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: H04W 8/24 Transfer of terminal data

Abstract

Methods and apparatus for communicating transmission backlog information are described. Reporting control factors are utilized to expand reporting possibilities for a fixed bit size request report. At least one report control factor is determined as a function of channel quality information, power information, device capability information, and/or quality of service information. A transmission backlog report value is interpreted as a function of a reporting control factor. A wide range of quantization schemes for reporting transmission backlog information are facilitated corresponding to a small bit size report. A communications device can adaptively select a quantization request level closely matched to its current needs such as to provide an accurate representation of its current traffic channel resource needs. A communications device may request a number of frames in a request report and the same report may be indirectly requesting a number of communications segments needed to clear its transmission backlog.

Claims

1. A method of reporting transmission backlog information, comprising:

measuring at least one of channel quality information, available transmission power information, device capability information, or quality of service information;

generating at least one reporting control factor as a function of at least one of the channel quality information, the available transmission power information, the device capability information and the quality of service information, or a combination thereof;

mapping a number of frames waiting to be transmitted to a report value as a function of the generated at least one reporting control factor; and

transmitting a report communicating the report value.

2. The method of claim 1,

wherein the generated at least one reporting control factor comprises channel quality information, wherein the channel quality information comprises at least one of uplink interference information, downlink interference information, uplink signal to noise information, downlink signal to noise information, uplink signal to interference information, and downlink signal to interference information.

3. The method of claim 1,

wherein the generated at least one reporting control factor comprises channel quality information;

and

wherein said channel quality information comprises uplink interference information.

4. The method of claim 3, wherein the uplink interference information comprises beacon ratio information.

5. The method of claim 1,

wherein the available transmission power information comprises at least said mapped frames.

6. The method of claim 1,

wherein the generated at least one reporting control factor comprises a maximum number of frames of information that can be communicated in a segment.

7. The method of claim 6, wherein the maximum number of frames of information comprises a highest rate supported option.

8. The method of claim 1, further comprising the step of determining an expected rate of transmission.

9. The method of claim 8, further comprising quantizing the number of frames waiting to be transmitted depending on the expected rate of transmission.

10. The method of claim 1, further comprising:

storing information mapping of at least one of an interference report and a transmission power report to the at least one reporting control factor.

11. The method of claim 10, wherein the interference report comprises a beacon ratio report, the transmission power report comprises a transmission power backoff report, and the stored information mapping comprises conditional limit values.

12. The method of claim 1,

wherein the at least one reporting control factor comprises a second factor, the second factor received from a base station.

13. The method of claim 12, wherein the second factor comprises an interference report gain adjustment value.

14. The method of claim 13, wherein the interference report gain adjustment value comprises an uplink traffic channel rate flash assignment offset.

15. The method of claim 1, further comprising the step of selecting a reporting control factor type to use from a plurality of reporting control factor types as a function of an amount of a backlog.

16. The method of claim 1, further comprising the step of selecting a reporting control factor type to use from a plurality of reporting control factor types as a function of the type of information the wireless terminal wants to report.

17. The method of claim 1, further comprising:

the step of mapping another number of frames waiting to be transmitted to another report value, the step of mapping another number of frames comprising selecting to not apply a reporting control factor.

18. The method of claim 17, wherein the step of selecting to not apply a reporting control factor is performed as a function of at least one of the type of information to be reported and an amount of backlog.

19. An apparatus, comprising:

a first control factor generation module for generating a first reporting control factor as a function of at least one of channel quality information, available transmission power information, device capability information and quality of service information, or a combination thereof; and

a mapping module for mapping a number of frames waiting to be transmitted to a report value as a function of said generated first reporting control factor; and

a transmitter module for transmitting a report communicating said report value,

wherein the apparatus measures at least one of the channel quality information, the available transmission power information, the device capability information, or the quality of service information.

20. The apparatus of claim 19, further comprising:

a channel quality determination module for generating information including at least one of uplink interference information, downlink interference information, uplink signal to noise information, downlink signal to noise information, uplink signal to interference information, and downlink signal to interference information,

wherein said first reporting control factor comprises channel quality information generated by said channel quality determination module.

21. The apparatus of claim 20, wherein the uplink interference information comprises beacon ratio information.

22. The apparatus of claim 19, further comprising:

a transmission power information generation module for generating available transmission power information,

wherein said first reporting control factor comprises generated available transmission power information.

23. The apparatus of claim 19, further comprising:

a transmission rate determination module for determining a current highest rate option, wherein said first reporting control factor comprises a maximum number of frames of information that can be communicated in a segment given the current highest rate option.

24. The apparatus of claim 19, further comprising:

an expected transmission rate determination module,

wherein the first reporting control factor comprises a determined expected rate of transmission.

25. The apparatus of claim 19, further comprising:

stored mapping information mapping at least one of an interference report value and a transmission power report value to the at least one reporting control factor.

26. An apparatus, comprising:

means for measuring at least one of channel quality information, available transmission power information, device capability information, or quality of service information;

means for generating a first reporting control factor as a function of at least one of the channel quality information, the available transmission power information, the device capability information and the quality of service information, or a combination thereof; and

means for mapping a number of frames waiting to be transmitted to a report value as a function of said generated first reporting control factor; and

means for transmitting a report communicating said report value.

27. The apparatus of claim 26, further comprising:

channel quality determination means for generating information comprising at least one of uplink interference information, downlink interference information, uplink signal to noise information, downlink signal to noise information, uplink signal to interference information, and downlink signal to interference information,

wherein said first reporting control factor comprises channel quality information generated by said channel quality determination means.

28. The apparatus of claim 27, wherein the uplink interference information comprises beacon ratio information.

29. The apparatus of claim 26, further comprising:

means for generating available transmission power information,

wherein said first reporting control factor comprises generated available transmission power information.

30. The apparatus of claim 26, further comprising:

means for determining a current highest rate option,

wherein said first reporting control factor comprises a maximum number of frames of information that can be communicated in a segment given the current highest rate supported option.

31. The wireless apparatus of claim 26, further comprising:

expected transmission rate determination means for determining an expected rate of data transmission,

wherein generating the first reporting control factor comprises determining an expected rate of data transmission.

32. The apparatus of claim 26, further comprising:

means for storing mapping information mapping at least one of an interference report value and a transmission power report value to the at least one reporting control factor.

33. A non-transitory computer readable medium embodying machine executable instructions to report transmission backlog information-which cause the machine to perform operations including:

measuring at least one of channel quality information, available transmission power information, device capability information, or quality of service information;

generating at least one reporting control factor as a function of at least one of the channel quality information, the available transmission power information, the device capability information and the quality of service information, or combinations thereof; and

mapping a number of frames waiting to be transmitted to a report value as a function of said generated at least one reporting control factor; and

transmitting a report communicating said report value.

34. The computer readable medium of claim 33,

wherein said at least one reporting control factor comprises channel quality information;

and

wherein said channel quality information comprises at least one of uplink interference information, downlink interference information, uplink signal to noise information, downlink signal to noise information, uplink signal to interference information, and downlink signal to interference information.

35. The computer readable medium of claim 33,

wherein said at least one reporting control factor comprises channel quality information;

and

wherein said channel quality information comprises uplink interference information.

36. The computer readable medium of claim 35, wherein the uplink interference information comprises beacon ratio information.

37. The computer readable medium of claim 33,

wherein said at least one reporting control factor comprises available transmission power information;

and

wherein said available transmission power information comprises at least said mapped frames.

38. The computer readable medium of claim 33,

wherein said at least one reporting control factor comprises a maximum number of frames of information that can be communicated in a segment.

39. The computer readable medium of claim 38, wherein the maximum number of frames of information comprises a highest rate supported option.

40. The computer readable medium of claim 33 further comprising quantizing the report differently depending on an expected rate of transmission as part of said mapping.

41. An apparatus operable in a communication system, the apparatus comprising:

a processor configured to;

measure at least one of channel quality information, available transmission power information, device capability information, or quality of service information;

generate at least one reporting control factor as a function of at least one of the channel quality information, the available transmission power information, the device capability information and the quality of service information, or a combination thereof; and

map a number of frames waiting to be transmitted to a report value as a function of said generated at least one reporting control factor; and

transmit a report communicating said report value; and

memory coupled to said processor.

42. The apparatus of claim 41,

wherein said at least one reporting control factor comprises channel quality information;

and

wherein said channel quality information comprises at least one of uplink interference information, downlink interference information, uplink signal to noise information, downlink signal to noise information, uplink signal to interference information, and downlink signal to interference information.

43. The apparatus of claim 41,

wherein said at least one reporting control factor comprises channel quality information;

and

wherein said channel quality information comprises uplink interference information.