IP Library › Granted Patent US 11,425,609

Granted Patent B2

US 11,425,609 · App. 16/896,881 · Granted Aug 23, 2022

Sidelink reservation across frequency bands

Inventors: Junyi Li (Chester, NJ); Jose Edson Vargas (San Diego, CA); Kapil Gulati (Hillsborough, NJ); Zhibin Wu (Los Altos, CA)

Assignee: QUALCOMM Incorporated

H04W28/26 H04W4/40 H04W16/14 H04W72/0453 H04W72/0493 H04W76/27 H04W92/18

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Quick Facts

Patent No.: US 11,425,609
App. No.: 16/896,881
Granted: Aug 23, 2022
Kind: B2

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Abstract

Aspects relate to mechanisms for sidelink reservation across frequency bands. In some examples, a sidelink device may be configured to communicate over a first frequency band (e.g., a sub-6 gigahertz frequency band) and a second frequency band (e.g., a millimeter wave frequency band) with one or more other sidelink devices. The sidelink device may further be configured to perform cross-link resource reservation for a sidelink transmission in which a resource reservation message transmitted on the first frequency band indicates reserved resources within the second frequency band for the sidelink transmission. The sidelink device may then transmit sidelink control information (SCI) within a sidelink control channel on the second frequency band and user data traffic corresponding to the SCI within a sidelink data channel on the second frequency band.

Claims (168)

1. A method for wireless communication at a first sidelink device, the method comprising:

transmitting a resource reservation message on a first frequency band comprising a first carrier frequency, the resource reservation message comprising an indication of reserved resources on a second frequency band comprising a second carrier frequency for transmission of user data traffic from the first sidelink device to a second sidelink device;

transmitting a sidelink control channel on the second frequency band within the reserved resources, the sidelink control channel comprising sidelink control information (SCI) associated with the user data traffic to be transmitted from the first sidelink device to the second sidelink device; and

transmitting a sidelink data channel comprising the user data traffic on the second frequency band within the reserved resources.

2. The method of claim 1 , wherein the transmitting the resource reservation message on the first frequency band further comprises:

transmitting a unicast radio resource control (RRC) resource reservation message to the second sidelink device on the first frequency band; and

transmitting a groupcast resource reservation message to a set of one or more additional sidelink devices on the first frequency band.

3. The method of claim 1 , wherein the transmitting the resource reservation message on the first frequency band further comprises:

transmitting a groupcast resource reservation message to the second sidelink device and to a set of one or more additional sidelink devices on the first frequency band to enable the set of one or more additional sidelink devices to manage interference on the reserved resources for additional sidelink communication.

4. The method of claim 1 , wherein the reserved resources comprise a time resource window and a set of frequency resources, wherein the time resource window comprises a starting time and a duration of time and the set of frequency resources comprises a starting resource block and a number of resource blocks within the second frequency band.

5. The method of claim 4 , wherein the SCI comprises scheduling information, the scheduling information comprising scheduled resources within the reserved resources for transmitting the user data traffic.

6. The method of claim 1 , further comprising:

receiving a sidelink feedback channel from the second sidelink device on the second frequency band, wherein the sidelink feedback channel comprises feedback information corresponding to the user data traffic.

7. The method of claim 1 , further comprising:

establishing a first sidelink with the second sidelink device on the first frequency band; and

establishing, at least in part utilizing the first sidelink, a second sidelink with the second sidelink device on the second frequency band.

8. The method of claim 7 , further comprising:

activating the second sidelink to wake-up the second sidelink device utilizing the resource reservation message.

9. The method of claim 1 , wherein the resource reservation message comprises a semi-persistent scheduling (SPS) message to activate or deactivate a semi-persistently configured assignment of periodic resources comprising the reserved resources for transmission of periodic user data traffic from the first sidelink device.

10. The method of claim 9 , further comprising:

triggering transmission of the SPS message based on a vehicle-to-everything (V2X) application associated with the first sidelink device and the second sidelink device or in response to an occurrence of a V2X event.

11. The method of claim 1 , further comprising:

communicating with the second sidelink device on the first frequency band utilizing an omni-directional beam, wherein the first frequency band comprises a sub-6 gigahertz frequency band; and

communicating with the second sidelink device on the second frequency band utilizing at least one directional beam, wherein the second frequency band comprises a millimeter wave frequency band.

12. The method of claim 1 , further comprising:

communicating with the second sidelink device on the first frequency band utilizing at least one directional beam, wherein the first frequency band comprises a millimeter wave frequency band; and

communicating with the second sidelink device on the second frequency band utilizing an omni-directional beam, wherein the second frequency band comprises a sub-6 gigahertz frequency band.

13. A first sidelink device, comprising:

a processor;

a wireless transceiver communicatively coupled to the processor; and

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

transmit a resource reservation message on a first frequency band comprising a first carrier frequency via the wireless transceiver, the resource reservation message comprising an indication of reserved resources on a second frequency band comprising a second carrier frequency for transmission of user data traffic from the first sidelink device to a second sidelink device;

transmit a sidelink control channel on the second frequency band within the reserved resources via the wireless transceiver, the sidelink control channel comprising sidelink control information (SCI) associated with the user data traffic to be transmitted from the first sidelink device to the second sidelink device; and

transmit a sidelink data channel comprising the user data traffic on the second frequency band within the reserved resources via the wireless transceiver.

14. The first sidelink device of claim 13 , wherein the processor is further configured to:

transmit a unicast radio resource control (RRC) resource reservation message to the second sidelink device on the first frequency band; and

transmit a groupcast resource reservation message to a set of one or more additional sidelink devices on the first frequency band.

15. The first sidelink device of claim 13 , wherein the processor is further configured to:

transmit a groupcast resource reservation message to the second sidelink device and to a set of one or more additional sidelink devices on the first frequency band to enable the set of one or more additional sidelink devices to manage interference on the reserved resources for additional sidelink communication.

16. The first sidelink device of claim 13 , wherein the processor is further configured to:

establish a first sidelink with the second sidelink device on the first frequency band; and

establish, at least in part utilizing the first sidelink, a second sidelink with the second sidelink device on the second frequency band; and

activate the second sidelink to wake-up the second sidelink device utilizing the resource reservation message.

17. The first sidelink device of claim 13 , wherein the resource reservation message comprises a semi-persistent scheduling (SPS) message to activate or deactivate a semi-persistently configured assignment of periodic resources comprising the reserved resources for transmission of periodic user data traffic from the first sidelink device.

18. A method for wireless communication at a first sidelink device, the method comprising:

receiving a resource reservation message on a first frequency band comprising a first carrier frequency, the resource reservation message comprising an indication of reserved resources on a second frequency band comprising a second carrier frequency for transmission of user data traffic from a second sidelink device;

receiving a sidelink control channel on the second frequency band, the sidelink control channel comprising sidelink control information (SCI) associated with the user data traffic to be transmitted from the second sidelink device to the first sidelink device; and

receiving a sidelink data channel comprising the user data traffic on the second frequency band.

19. The method of claim 18 , wherein the receiving the resource reservation message on the first frequency band further comprises:

receiving a radio resource control (RRC) message comprising the resource reservation message from the second sidelink device on the first frequency band.

20. The method of claim 18 , wherein the receiving the resource reservation message on the first frequency band further comprises:

receiving a groupcast message comprising the resource reservation message from the second sidelink device on the first frequency band, wherein the groupcast message is further transmitted to a set of one or more additional sidelink devices on the first frequency band.

21. The method of claim 18 , wherein the reserved resources comprise a time resource window and a set of frequency resources, wherein the time resource window comprises a starting time and a duration of time and the set of frequency resources comprises a starting resource block and a number of resource blocks.

22. The method of claim 21 , wherein the SCI comprises scheduling information, the scheduling information comprising scheduled resources within the reserved resources on which the user data traffic will be transmitted.

23. The method of claim 21 , further comprising:

beamforming towards the second sidelink device during the time resource window to receive the sidelink control channel and the sidelink data channel using at least one directional beam, wherein the second frequency band comprises a millimeter wave frequency band and the first frequency band comprises a sub-6 gigahertz frequency band.

24. The method of claim 18 , further comprising:

transmitting a sidelink feedback channel to the second sidelink device on the second frequency band, wherein the sidelink feedback channel comprises feedback information corresponding to the user data traffic.

25. The method of claim 18 , further comprising:

establishing a first sidelink with a second sidelink device on the first frequency band; and

establishing, at least in part utilizing the first sidelink, a second sidelink with the second sidelink device on the second frequency band.

26. The method of claim 25 , further comprising:

waking-up and activating the second sidelink in response to receiving the resource reservation message.

27. The method of claim 18 , wherein the resource reservation message comprises a semi-persistent scheduling (SPS) message activating or deactivating a semi-persistently configured assignment of periodic resources comprising the reserved resources.

28. A method for wireless communication at a first sidelink device, the method comprising:

managing interference on the reserved resources based on the resource reservation message.

29. The method of claim 28 , wherein the managing interference on the reserved resources further comprises:

avoiding utilization of the reserved resources for sidelink communication.

30. The method of claim 28 , wherein the receiving the resource reservation message on the first frequency band further comprises:

receiving a groupcast message comprising the resource reservation message from the second sidelink device on the first frequency band.

31. A first sidelink device, comprising:

means for transmitting a resource reservation message on a first frequency band comprising a first carrier frequency, the resource reservation message comprising an indication of reserved resources on a second frequency band comprising a second carrier frequency for transmission of user data traffic from the first sidelink device to a second sidelink device;

means for transmitting a sidelink control channel on the second frequency band within the reserved resources, the sidelink control channel comprising sidelink control information (SCI) associated with the user data traffic to be transmitted from the first sidelink device to the second sidelink device; and

means for transmitting a sidelink data channel comprising the user data traffic on the second frequency band within the reserved resources.

32. The first sidelink device of claim 31 , wherein the means for transmitting the resource reservation message on the first frequency band further comprises:

means for transmitting a unicast radio resource control (RRC) resource reservation message to the second sidelink device on the first frequency band; and

means for transmitting a groupcast resource reservation message to a set of one or more additional sidelink devices on the first frequency band.

33. The first sidelink device of claim 31 , wherein the means for transmitting the resource reservation message on the first frequency band further comprises:

means for transmitting a groupcast resource reservation message to the second sidelink device and to a set of one or more additional sidelink devices on the first frequency band to enable the set of one or more additional sidelink devices to manage interference on the reserved resources for additional sidelink communication.

34. The first sidelink device of claim 31 , further comprising:

means for receiving a sidelink feedback channel from the second sidelink device on the second frequency band, wherein the sidelink feedback channel comprises feedback information corresponding to the user data traffic.

35. The first sidelink device of claim 31 , further comprising:

means for communicating with the second sidelink device on the first frequency band utilizing an omni-directional beam, wherein the first frequency band comprises a sub-6 gigahertz frequency band; and

means for communicating with the second sidelink device on the second frequency band utilizing at least one directional beam, wherein the second frequency band comprises a millimeter wave frequency band.

36. The first sidelink device of claim 31 , further comprising:

means for communicating with the second sidelink device on the first frequency band utilizing at least one directional beam, wherein the first frequency band comprises a millimeter wave frequency band; and

means for communicating with the second sidelink device on the second frequency band utilizing an omni-directional beam, wherein the second frequency band comprises a sub-6 gigahertz frequency band.

37. A non-transitory computer-readable medium having stored therein instructions executable by one or more processors of a first sidelink device to:

transmit a resource reservation message on a first frequency band comprising a first carrier frequency, the resource reservation message comprising an indication of reserved resources on a second frequency band comprising a second carrier frequency for transmission of user data traffic from the first sidelink device to a second sidelink device;

transmit a sidelink control channel on the second frequency band within the reserved resources, the sidelink control channel comprising sidelink control information (SCI) associated with the user data traffic to be transmitted from the first sidelink device to the second sidelink device; and

transmit a sidelink data channel comprising the user data traffic on the second frequency band within the reserved resources.

38. The non-transitory computer-readable medium of claim 37 , further comprising instructions executable by the one or more processors of the first sidelink device to:

transmit a unicast radio resource control (RRC) resource reservation message to the second sidelink device on the first frequency band; and

transmit a groupcast resource reservation message to a set of one or more additional sidelink devices on the first frequency band.

39. The non-transitory computer-readable medium of claim 37 , further comprising instructions executable by the one or more processors of the first sidelink device to:

40. The non-transitory computer-readable medium of claim 37 , further comprising instructions executable by the one or more processors of the first sidelink device to:

receive a sidelink feedback channel from the second sidelink device on the second frequency band, wherein the sidelink feedback channel comprises feedback information corresponding to the user data traffic.

41. The non-transitory computer-readable medium of claim 37 , further comprising instructions executable by the one or more processors of the first sidelink device to:

communicate with the second sidelink device on the first frequency band utilizing an omni-directional beam, wherein the first frequency band comprises a sub-6 gigahertz frequency band; and

communicate with the second sidelink device on the second frequency band utilizing at least one directional beam, wherein the second frequency band comprises a millimeter wave frequency band.

42. The non-transitory computer-readable medium of claim 37 , further comprising instructions executable by the one or more processors of the first sidelink device to:

communicate with the second sidelink device on the first frequency band utilizing at least one directional beam, wherein the first frequency band comprises a millimeter wave frequency band; and

communicate with the second sidelink device on the second frequency band utilizing an omni-directional beam, wherein the second frequency band comprises a sub-6 gigahertz frequency band.

43. A first sidelink device, comprising:

a processor; and

a memory coupled to the processor, the processor being configured to:

receive a resource reservation message on a first frequency band comprising a first carrier frequency, the resource reservation message comprising an indication of reserved resources on a second frequency band comprising a second carrier frequency for transmission of user data traffic from a second sidelink device;

receive a sidelink control channel on the second frequency band, the sidelink control channel comprising sidelink control information (SCI) associated with the user data traffic to be transmitted from the second sidelink device to the first sidelink device; and

receive a sidelink data channel comprising the user data traffic on the second frequency band.

44. The first sidelink device of claim 43 , further comprising:

a transceiver coupled to the processor, wherein the processor is further configured to:

receive a radio resource control (RRC) message comprising the resource reservation message from the second sidelink device on the first frequency band via the transceiver.

45. The first sidelink device of claim 43 , wherein the processor is further configured to:

receive a groupcast message comprising the resource reservation message from the second sidelink device on the first frequency band, wherein the groupcast message is further transmitted to a set of one or more additional sidelink devices on the first frequency band.

46. The first sidelink device of claim 43 , wherein the reserved resources comprise a time resource window and a set of frequency resources, wherein the time resource window comprises a starting time and a duration of time and the set of frequency resources comprises a starting resource block and a number of resource blocks, and wherein the processor is further configured to:

beamform towards the second sidelink device during the time resource window to receive the sidelink control channel and the sidelink data channel using at least one directional beam, wherein the second frequency band comprises a millimeter wave frequency band and the first frequency band comprises a sub-6 gigahertz frequency band.

47. The first sidelink device of claim 43 , wherein the processor is further configured to:

transmit a sidelink feedback channel to the second sidelink device on the second frequency band, wherein the sidelink feedback channel comprises feedback information corresponding to the user data traffic.

48. A first sidelink device, comprising:

means for receiving a resource reservation message on a first frequency band comprising a first carrier frequency, the resource reservation message comprising an indication of reserved resources on a second frequency band comprising a second carrier frequency for transmission of user data traffic from a second sidelink device;

means for receiving a sidelink control channel on the second frequency band, the sidelink control channel comprising sidelink control information (SCI) associated with the user data traffic to be transmitted from the second sidelink device to the first sidelink device; and

means for receiving a sidelink data channel comprising the user data traffic on the second frequency band.

49. The first sidelink device of claim 48 , further comprising:

means for receiving a radio resource control (RRC) message comprising the resource reservation message from the second sidelink device on the first frequency band.

50. The first sidelink device of claim 48 , further comprising:

means for receiving a groupcast message comprising the resource reservation message from the second sidelink device on the first frequency band, wherein the groupcast message is further transmitted to a set of one or more additional sidelink devices on the first frequency band.

51. The first sidelink device of claim 48 , wherein the reserved resources comprise a time resource window and a set of frequency resources, wherein the time resource window comprises a starting time and a duration of time and the set of frequency resources comprises a starting resource block and a number of resource blocks, and wherein the first sidelink device further comprises:

means for beamforming towards the second sidelink device during the time resource window to receive the sidelink control channel and the sidelink data channel using at least one directional beam, wherein the second frequency band comprises a millimeter wave frequency band and the first frequency band comprises a sub-6 gigahertz frequency band.

52. The first sidelink device of claim 48 , further comprising:

means for transmitting a sidelink feedback channel to the second sidelink device on the second frequency band, wherein the sidelink feedback channel comprises feedback information corresponding to the user data traffic.

53. A non-transitory computer-readable medium having stored therein instructions executable by one or more processors of a first sidelink device to:

receive a sidelink data channel comprising the user data traffic on the second frequency band.

54. The non-transitory computer-readable medium of claim 53 , further comprising instructions executable by the one or more processors of the first sidelink device to:

receive a radio resource control (RRC) message comprising the resource reservation message from the second sidelink device on the first frequency band.

55. The non-transitory computer-readable medium of claim 53 , further comprising instructions executable by the one or more processors of the first sidelink device to:

56. The non-transitory computer-readable medium of claim 53 , wherein the reserved resources comprise a time resource window and a set of frequency resources, wherein the time resource window comprises a starting time and a duration of time and the set of frequency resources comprises a starting resource block and a number of resource blocks, and further comprising instructions executable by the one or more processors of the first sidelink device to:

57. The non-transitory computer-readable medium of claim 53 , further comprising instructions executable by the one or more processors of the first sidelink device to:

58. A first sidelink device, comprising:

a processor; and

a memory coupled to the processor, the processor being configured to:

manage interference on the reserved resources based on the resource reservation message.

59. The first sidelink device of claim 58 , wherein the processor is further configured to:

avoid utilization of the reserved resources for sidelink communication.

60. The first sidelink device of claim 58 , further comprising:

a transceiver coupled to the processor, wherein the processor is further configured to:

receive a groupcast message comprising the resource reservation message from the second sidelink device on the first frequency band via the transceiver.

61. A first sidelink device, comprising:

means for managing interference on the reserved resources based on the resource reservation message.

62. The first sidelink device of claim 61 , further comprising:

means for avoiding utilization of the reserved resources for sidelink communication.

63. The first sidelink device of claim 61 , further comprising:

means for receiving a groupcast message comprising the resource reservation message from the second sidelink device on the first frequency band.

64. A non-transitory computer-readable medium having stored therein instructions executable by one or more processors of a first sidelink device to:

manage interference on the reserved resources based on the resource reservation message.

65. The non-transitory computer-readable medium of claim 64 , further comprising instructions executable by the one or more processors of the first sidelink device to:

avoid utilization of the reserved resources for sidelink communication.

66. The non-transitory computer-readable medium of claim 64 , further comprising instructions executable by the one or more processors of the first sidelink device to:

receive a groupcast message comprising the resource reservation message from the second sidelink device on the first frequency band.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2021

From: LI, JUNYI; VARGAS, JOSE EDSON; GULATI, KAPIL; WU, ZHIBIN

To: QUALCOMM INCORPORATED

Reel/Frame 054980/0115 →

Continuity (2)

Provisional Application 62867787 · Jun 27, 2019

Related Publication 20200413295A1 · Dec 31, 2020