IP Library › Granted Patent US 10,588,135

Granted Patent B2

US 10,588,135 · App. 14/938,604 · Granted Mar 10, 2020

Techniques for handling bursty interference in a shared radio frequency spectrum band

Inventors: Arumugam Chendamarai Kannan (San Diego, CA); Tao Luo (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04W72/082 H04L1/0002 H04L1/0003 H04L1/0009 H04L1/0015 H04L1/0026 H04L1/0028 H04L1/1671 H04L1/1825 H04L1/1854 H04W72/048 H04L5/001 H04L5/0023 H04L5/0055

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Quick Facts

Patent No.: US 10,588,135
App. No.: 14/938,604
Granted: Mar 10, 2020
Kind: B2

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Abstract

Techniques are described for wireless communication. A first method includes determining, at a user equipment (UE), that the UE is exposed to a bursty interference in a shared radio frequency spectrum band, and modifying, based at least in part on the bursty interference, a feedback message reporting by the UE to a base station. A second method includes determining, at a base station, that a UE is exposed to a bursty interference in a shared radio frequency spectrum band, and modifying, based at least in part on the bursty interference, one or more of: a link adaptation for the UE or a transmission schedule for the UE.

Claims (85)

1. A method for wireless communication, comprising:

receiving, at a user equipment (UE) operating on a first radio access technology (RAT), a downlink transmission from a base station;

determining, at the UE, that the UE is exposed to a bursty interference during at least a portion of the downlink transmission, wherein the bursty interference is from a second device operating on a second RAT in a shared radio frequency spectrum band, wherein the first RAT and the second RAT are different; and

modifying, based at least in part on the bursty interference, a feedback message reporting by the UE to the base station, wherein the modifying comprises transmitting a feedback message comprising a pattern of the bursty interference based at least in part on determining that more than one downlink transmission is exposed to more than one instance of the bursty interference.

2. The method of claim 1 , wherein determining that the UE is exposed to the bursty interference comprises:

determining that a parameter of the bursty interference satisfies a threshold.

3. The method of claim 2 , wherein modifying the feedback message reporting comprises:

withholding reporting of the feedback message based at least in part on the parameter of the bursty interference satisfying the threshold.

4. The method of claim 2 , wherein the parameter of the bursty interference comprises a strength of the bursty interference or a duration of the bursty interference.

5. The method of claim 1 , wherein determining that the UE is exposed to the bursty interference comprises:

determining at least one parameter of the bursty interference;

wherein the at least one parameter of the bursty interference comprises one or more of: a strength of the bursty interference; a duration of the bursty interference, the pattern of the bursty interference, a periodicity of the bursty interference, a preamble contained in the bursty interference; a transmission format associated with the bursty interference; or a wireless standard associated with the bursty interference.

6. The method of claim 1 , wherein modifying the feedback message reporting comprises:

withholding, based at least in part on the bursty interference, transmission of an ACK/NACK of the downlink transmission.

7. The method of claim 1 , further comprising:

detecting a failure to decode the downlink transmission received during the bursty interference;

wherein modifying the feedback message reporting comprises withholding, based at least in part on the bursty interference and the failure to decode the downlink transmission, transmission of an ACK/NACK of the downlink transmission.

8. The method of claim 1 , wherein modifying the feedback message reporting comprises:

transmitting, with an ACK/NACK of the downlink transmission, an indicator of the bursty interference.

9. The method of claim 1 , wherein:

determining the UE is exposed to the bursty interference comprises determining at least one parameter of the bursty interference; and

modifying the feedback message reporting comprises transmitting the at least one parameter of the bursty interference.

10. The method of claim 9 , wherein the at least one parameter of the bursty interference comprises one or more of:

a strength of the bursty interference; a duration of the bursty interference; the pattern of the bursty interference; a periodicity of the bursty interference; a preamble contained in the bursty interference; a transmission format associated with the bursty interference; or a wireless standard associated with the bursty interference.

11. The method of claim 9 , wherein the at least one parameter of the bursty interference is transmitted with an ACK/NACK of the downlink transmission.

12. The method of claim 9 , wherein the at least one parameter of the bursty interference is transmitted via semi-static signaling.

13. An apparatus for wireless communication, comprising:

means for receiving, at a user equipment (UE) operating on a first radio access technology (RAT), a downlink transmission from a base station;

means for determining, at the UE, that the UE is exposed to a bursty interference during at least a portion of the downlink transmission, wherein the bursty interference is from a second device operating on a second RAT in a shared radio frequency spectrum band, wherein the first RAT and the second RAT are different; and

means for modifying, based at least in part on the bursty interference, a feedback message reporting by the UE to the base station, wherein the means for modifying comprises means for transmitting a feedback message comprising a pattern of the bursty interference based at least in part on determining that more than one downlink transmission is exposed to more than one instance of the bursty interference.

14. The apparatus of claim 13 , wherein the means for determining that the UE is exposed to the bursty interference comprises:

means for determining that a parameter of the bursty interference satisfies a threshold.

15. The apparatus of claim 14 , wherein the means for modifying the feedback message reporting comprises:

means for withholding reporting of the feedback message based at least in part on the parameter of the bursty interference satisfying the threshold.

16. The apparatus of claim 14 , wherein the parameter of the bursty interference comprises a strength of the bursty interference or a duration of the bursty interference.

17. The apparatus of claim 13 , wherein the means for determining that the UE is exposed to the bursty interference comprises:

means for determining at least one parameter of the bursty interference;

18. The apparatus of claim 13 , wherein the means for modifying the feedback message reporting comprises:

means for withholding, based at least in part on the bursty interference, transmission of an ACK/NACK of the downlink transmission.

19. The apparatus of claim 13 , further comprising:

means for detecting a failure to decode the downlink transmission received during the bursty interference;

wherein the means for modifying the feedback message reporting comprises withholding, based at least in part on the bursty interference and the failure to decode the downlink transmission, transmission of an ACK/NACK of the downlink transmission.

20. The apparatus of claim 13 , wherein the means for modifying the feedback message reporting comprises:

means for transmitting, with an ACK/NACK of the downlink transmission, an indicator of the bursty interference.

21. The apparatus of claim 13 , wherein:

the means for determining the UE is exposed to the bursty interference comprises means for determining at least one parameter of the bursty interference; and

the means for modifying the feedback message reporting comprises means for transmitting the at least one parameter of the bursty interference.

22. The apparatus of claim 21 , wherein the at least one parameter of the bursty interference comprises one or more of:

23. The apparatus of claim 21 , wherein the at least one parameter of the bursty interference is transmitted with an ACK/NACK of the downlink transmission.

24. The apparatus of claim 21 , wherein the at least one parameter of the bursty interference is transmitted via semi-static signaling.

25. An apparatus for wireless communication, comprising:

a processor; and

memory coupled to the processor, wherein the processor is configured to:

receive, at a user equipment (UE) operating on a first radio access technology (RAT), a downlink transmission from a base station;

determine, at the UE, that the UE is exposed to a bursty interference during at least a portion of the downlink transmission, wherein the bursty interference is from a second device operating on a second RAT in a shared radio frequency spectrum band, wherein the first RAT and the second RAT are different; and

modify, based at least in part on the bursty interference, a feedback message reporting by the UE to the base station, wherein modifying comprises transmitting a feedback message comprising a pattern of the bursty interference based at least in part on determining that more than one downlink transmission is exposed to more than one instance of the bursty interference.

26. The apparatus of claim 25 , wherein determining that the UE is exposed to the bursty interference comprises:

determining that a parameter of the bursty interference satisfies a threshold.

27. The apparatus of claim 26 , wherein modifying the feedback message reporting comprises:

withholding reporting of the feedback message based at least in part on the parameter of the bursty interference satisfying the threshold.

28. The apparatus of claim 26 , wherein the parameter of the bursty interference comprises a strength of the bursty interference or a duration of the bursty interference.

29. The apparatus of claim 25 , wherein determining that the UE is exposed to the bursty interference comprises:

determining at least one parameter of the bursty interference;

30. The apparatus of claim 25 , wherein modifying the feedback message reporting comprises:

withholding, based at least in part on the bursty interference, transmission of an ACK/NACK of the downlink transmission.

31. The apparatus of claim 25 , wherein the processor is further configured to:

detect a failure to decode the downlink transmission received during the bursty interference;

32. The apparatus of claim 25 , wherein modifying the feedback message reporting comprises:

transmitting, with an ACK/NACK of the downlink transmission, an indicator of the bursty interference.

33. The apparatus of claim 25 , wherein:

determining the UE is exposed to the bursty interference comprises determining at least one parameter of the bursty interference; and

modifying the feedback message reporting comprises transmitting the at least one parameter of the bursty interference.

34. A non-transitory computer-readable medium for storing instructions executable by a processor, comprising:

instructions to receive, at a user equipment (UE) operating on a first radio access technology (RAT), a downlink transmission from a base station;

instructions to determine, at the UE, that the UE is exposed to a bursty interference during at least a portion of the downlink transmission, wherein the bursty interference is from a second device operating on a second RAT in a shared radio frequency spectrum band, wherein the first RAT and the second RAT are different; and

instructions to modify, based at least in part on the bursty interference, a feedback message reporting by the UE to the base station, wherein modifying comprises transmitting a feedback message comprising a pattern of the bursty interference based at least in part on determining that more than one downlink transmission is exposed to more than one instance of the bursty interference.

35. The computer-readable medium of claim 34 , wherein the instructions to modify the feedback message reporting comprise:

instructions to transmit, with an ACK/NACK of the downlink transmission, an indicator of the bursty interference.

36. The computer-readable medium of claim 34 , wherein:

the instructions to determine the UE is exposed to the bursty interference comprise instructions to determine at least one parameter of the bursty interference; and

the instructions to modify the feedback message reporting comprise instructions to transmit the at least one parameter of the bursty interference.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 28, 2016

From: CHENDAMARAI KANNAN, ARUMUGAM; LUO, TAO

To: QUALCOMM INCORPORATED

Reel/Frame 037608/0747 →

Continuity (3)

Provisional Application 62134336 · Mar 17, 2015

Provisional Application 62080078 · Nov 14, 2014

Related Publication 20160143043A1 · May 19, 2016