METHODS AND APPARATUS FOR ENHANCED UL RLC FLOW CONTROL FOR MRAB CALLS

• US 20130003542A1
• Filed: 06/29/2012
• Published: 01/03/2013
• Est. Priority Date: 07/01/2011
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Catovic, Amer, El-saidny, Mohamed A., Chan, Chunchung
• Granted Patent: US 9,167,472 B2
• Time in Patent Office: Days
• US Class Current: 370/230
• CPC Class Codes: H04L 1/0019 in which mode-switching is based on a statistical approach
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 1/1832 Details of sliding window management
• CPC Class Codes: H04L 1/1883 using multiple timers
• CPC Class Codes: H04L 1/203 Details of error rate determination, e.g. BER, FER or WER
• CPC Class Codes: H04W 28/0236 radio quality, e.g. interference, losses or delay

Abstract

Systems, devices, and methods for wireless enhanced uplink (UL) radio link control (RLC) flow control for multi-radio access bearer (MRAB) calls. In one aspect, a device configured to manage a wireless connection in a voice and data communication is provided. The device includes a receiver configured to receive radio link control (RLC) control information. The device further includes a controller configured to detect one or more radio frequency (RF) conditions. The controller is further configured to dynamically adjust, independent of the received RLC control information, RLC flow control in response to the RF conditions.

Claims

1. A method of managing a wireless connection in a voice and data communication, comprising:

receiving radio link control (RLC) control information;

detecting one or more radio frequency (RF) conditions; and

dynamically adjusting, independent of the received RLC control information, RLC flow control in response to the RF conditions.

2. The method of claim 1, wherein the adjusting is performed by user equipment.

3. The method of claim 1, wherein said adjusting is performed by network equipment.

4. The method of claim 1, wherein said adjusting comprises adjusting one or more RLC parameters.

8. The method of claim 1, wherein said detecting is triggered by at least one of:

an RF measurement, a block error rate (BLER), a number of re-transmissions, and an occurrence rate of RLC resets.

5. The method of claim 5, wherein said adjusting comprises adjusting the one or more RLC parameters beyond respective standardized values.

6. The method of claim 5, wherein said adjusting comprises extending a range of allowable RLC parameter settings.

7. The method of claim 5, wherein the one or more RLC parameters comprise one or more of:

max reset timers and counters, RLC window sizes, poll timers, reset timers, and status timers.

9. A device configured to manage a wireless connection in a voice and data communication, comprising:

a receiver configured to receive radio link control (RLC) control information; and

a controller configured to;

detect one or more radio frequency (RF) conditions; and

dynamically adjust, independent of the received RLC control information, RLC flow control in response to the RF conditions.

10. The device of claim 9, wherein the device is configured as user equipment.

11. The device of claim 9, wherein the device is configured as network equipment.

12. The device of claim 9, wherein the controller is configured to adjust the RLC flow control by adjusting one or more RLC parameters.

13. The device of claim 12, wherein the controller is configured to adjust the RLC flow control by adjusting the one or more RLC parameters beyond respective standardized values.

14. The device of claim 12, wherein the controller is configured to adjust the RLC flow control by extending a range of allowable RLC parameter settings.

15. The device of claim 12, wherein the one or more RLC parameters comprise one or more of:

max reset timers and counters, RLC window sizes, poll timers, reset timers, and status timers.

16. The device of claim 9, wherein the controller is configured to detect the one or more radio frequency (RF) conditions triggered by at least one of:

an RF measurement, a block error rate (BLER), a number of re-transmissions, and an occurrence rate of RLC resets.

17. An apparatus for managing a wireless connection in a voice and data communication, comprising:

means for receiving radio link control (RLC) control information;

means for detecting one or more radio frequency (RF) conditions; and

means for dynamically adjusting, independent of the received RLC control information, RLC flow control in response to the RF conditions.

18. The apparatus of claim 17, wherein the means for adjusting comprises user equipment.

19. The apparatus of claim 17, wherein the means for adjusting comprises network equipment.

20. The apparatus of claim 17, wherein means for adjusting comprises means for adjusting one or more RLC parameters.

21. The apparatus of claim 20, wherein means for adjusting comprises means for adjusting the one or more RLC parameters beyond respective standardized values.

22. The apparatus of claim 20, wherein means for adjusting comprises means for extending a range of allowable RLC parameter settings.

23. The apparatus of claim 20, wherein the one or more RLC parameters comprise one or more of:

max reset timers and counters, RLC window sizes, poll timers, reset timers, and status timers.

24. The apparatus of claim 17, wherein said means for detecting is triggered by at least one of:

an RF measurement, a block error rate (BLER), a number of re- transmissions, and an occurrence rate of RLC resets.

25. A non-transitory computer readable storage medium comprising instructions that, when executed by at least one processor of an apparatus, cause the apparatus to:

receive radio link control (RLC) control information;

detect one or more radio frequency (RF) conditions; and

dynamically adjust, independent of the received RLC control information, RLC flow control in response to the RF conditions.

26. The medium of claim 25, wherein the apparatus comprises user equipment.

27. The medium of claim 25, wherein the apparatus comprises network equipment.

28. The medium of claim 25, further comprising instructions that, when executed by at least one processor of the apparatus, cause the apparatus to adjusting one or more RLC parameters.

29. The medium of claim 28, further comprising instructions that, when executed by at least one processor of the apparatus, cause the apparatus to adjust the one or more RLC parameters beyond respective standardized values.

30. The medium of claim 28, further comprising instructions that, when executed by at least one processor of the apparatus, cause the apparatus to extend a range of allowable RLC parameter settings.

31. The medium of claim 28, wherein the one or more RLC parameters comprise one or more of:

max reset timers and counters, RLC window sizes, poll timers, reset timers, and status timers.

32. The medium of claim 25, further comprising instructions that, when executed by at least one processor of the apparatus, cause the apparatus to trigger said detection by at least one of:

an RF measurement, a block error rate (BLER), a number of re-transmissions, and an occurrence rate of RLC resets.