IP Library › Granted Patent US 12,407,385
Granted Patent B2
US 12,407,385 · App. 17/157,907 · Granted Sep 2, 2025

Signaling of beam correlation across millimeter wave frequency bands

Inventors: Vasanthan Raghavan (West Windsor Township, NJ); Tao Luo (San Diego, CA); Junyi Li (Franklin Park, NJ); Robert Keith Douglas (San Diego, CA); Alexander Dorosenco (El Cajon, CA)
Assignee: QUALCOMM Incorporated
H04B7/0617H04W16/28H04W72/046H04W72/23H04W88/14H04L5/001
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Quick Facts
Patent No.
US 12,407,385
App. No.
17/157,907
Granted
Sep 2, 2025
Kind
B2
Abstract

Methods, systems, and devices for wireless communications are described. A first wireless device may receive, from a second wireless device, a carrier aggregation configuration including two millimeter wave frequency bands for communications. The first wireless device may determine a beam correlation parameter based on the carrier aggregation configuration. The first wireless device may determine beams, based on the beam correlation parameter, in the two frequency bands. The first wireless device and the second wireless device may communicate in carrier aggregation using a beam on a first frequency band and a second beam on a second frequency band.

Claims (128)

1. A method for wireless communications at a first wireless device, comprising:

receiving, from a second wireless device, a carrier aggregation configuration for communications with the second wireless device, the carrier aggregation configuration comprising at least a first frequency band and a second frequency band; and

communicating, with the second wireless device, in carrier aggregation using a first beam on the first frequency band and a second beam on the second frequency band, the first beam and the second beam being based at least in part on a beam correlation parameter, the beam correlation parameter based at least in part on the received carrier aggregation configuration and indicating a correlation between the first beam and the second beam in a direction based at least in part on the carrier aggregation performed in the direction in the first frequency band and in the second frequency band and across a plurality of transmission configuration indication states for the first frequency band and the second frequency band.

2. The method of claim 1 , wherein receiving the carrier aggregation configuration further comprises:

receiving, from the second wireless device, an inter-band carrier aggregation configuration.

3. The method of claim 1 , wherein the first frequency band is a first millimeter wave frequency band and the second frequency band is a second millimeter wave frequency band.

4. The method of claim 1 , wherein receiving the carrier aggregation configuration comprises:

receiving, from the second wireless device, a configuration message as a broadcast message to one or more wireless devices including at least the first wireless device, a wireless device specific message intended for the first wireless device, or both.

5. The method of claim 1 , wherein receiving the carrier aggregation configuration comprises:

receiving, from the second wireless device, a configuration message specific to bandwidth parts of the first frequency band and the second frequency band.

6. The method of claim 1 , wherein receiving the carrier aggregation configuration comprises:

receiving, from the second wireless device, a configuration message specific to at least one transmission configuration indication state of the plurality of transmission configuration indication states associated with the first frequency band and the second frequency band at the second wireless device.

7. The method of claim 1 , wherein receiving the carrier aggregation configuration comprises:

receiving, from the second wireless device, a configuration message as a weighted average metric for two or more transmission configuration indication states of the plurality of transmission configuration indication states associated with the first frequency band and the second frequency band at the second wireless device.

8. The method of claim 7 , wherein communicating in the carrier aggregation further comprises:

communicating in the carrier aggregation based at least in part on weights for use with the weighted average metric and the two or more transmission configuration indication states of the second beam used in determining a weighted average.

9. The method of claim 1 , wherein the first frequency band is a lower millimeter wave band and the second frequency band is an upper millimeter wave band.

10. The method of claim 1 , wherein the first frequency band includes frequencies between 24.25 GHz and 52.6 GHz and the second frequency band includes frequencies that are greater than 52.6 GHz.

11. The method of claim 1 , wherein the first wireless device is a user equipment (UE) or a customer premises equipment (CPE) in a wireless communications system and the second wireless device is a base station, a CPE, a relay device, a router, a repeater, or an integrated access and backhaul (IAB) node in the wireless communications system.

12. A method for wireless communications at a second wireless device, comprising:

transmitting, to a first wireless device, a carrier aggregation configuration for communications with the first wireless device, the carrier aggregation configuration comprising at least a first frequency band and a second frequency band; and

communicating, with the first wireless device, in carrier aggregation using a first beam on the first frequency band and a second beam on the second frequency band, the first beam and the second beam being based at least in part on a beam correlation parameter, the beam correlation parameter based at least in part on the carrier aggregation configuration and indicating a correlation between the first beam and the second beam in a direction based at least in part on the carrier aggregation performed in the direction in the first frequency band and in the second frequency band and across a plurality of transmission configuration indication states for the first frequency band and the second frequency band.

13. The method of claim 12 , wherein transmitting the carrier aggregation configuration further comprises:

transmitting, from the second wireless device, an inter-band carrier aggregation configuration.

14. The method of claim 12 , wherein the first frequency band is a first millimeter wave frequency band and the second frequency band is a second millimeter wave frequency band.

15. The method of claim 12 , wherein transmitting the carrier aggregation configuration comprises:

transmitting, to the first wireless device, a configuration message as a broadcast message to one or more wireless devices including at least the first wireless device, a wireless device specific message intended for the first wireless device, or both.

16. The method of claim 12 , wherein transmitting the carrier aggregation configuration comprises:

transmitting, to the first wireless device, a configuration message specific to bandwidth parts of the first frequency band and the second frequency band.

17. The method of claim 12 , wherein transmitting the carrier aggregation configuration comprises:

transmitting, to the first wireless device, a configuration message specific to at least one transmission configuration indication state of the plurality of transmission configuration indication states used in the first frequency band and the second frequency band at the second wireless device.

18. The method of claim 12 , wherein transmitting the carrier aggregation configuration comprises:

transmitting, to the first wireless device, a configuration message as a weighted average metric for two or more transmission configuration indication states of the plurality of transmission configuration indication states used in the first frequency band and the second frequency band at the second wireless device.

19. The method of claim 12 , wherein the first frequency band is a lower millimeter wave band and the second frequency band is an upper millimeter wave band.

20. The method of claim 12 , wherein the first wireless device is a user equipment (UE) or a customer premises equipment (CPE) in a wireless communications system and the second wireless device is a base station, a CPE, a relay device, a router, a repeater, or an integrated access and backhaul (IAB) node in the wireless communications system.

21. The method of claim 12 , wherein the first frequency band includes frequencies between 24.25 GHz and 52.6 GHz, and the second frequency band includes frequencies that are greater than 52.6 GHz.

22. An apparatus for wireless communications at a first wireless device, comprising:

one or more memories; and

one or more processors coupled with the one or more memories and configured to cause the first wireless device to:

receive, from a second wireless device, a carrier aggregation configuration for communications with the second wireless device, the carrier aggregation configuration comprising at least a first frequency band and a second frequency band; and

communicate, with the second wireless device, in carrier aggregation using a first beam on the first frequency band and a second beam on the second frequency band, the first beam and the second beam being based at least in part on a beam correlation parameter, the beam correlation parameter based at least in part on the received carrier aggregation configuration, wherein the beam correlation parameter indicates a correlation between the first beam and the second beam in a direction based at least in part on the carrier aggregation performed in the direction in the first frequency band and in the second frequency band and across a plurality of transmission configuration indication states for the first frequency band and the second frequency band.

23. The apparatus of claim 22 , wherein the one or more processors are configured to cause the first wireless device to:

receive, from the second wireless device, an inter-band carrier aggregation configuration.

24. The apparatus of claim 22 , wherein the first frequency band is a first millimeter wave frequency band and the second frequency band is a second millimeter wave frequency band.

25. The apparatus of claim 22 , wherein the one or more processors are configured to cause the first wireless device to:

receive, from the second wireless device, a configuration message as a broadcast message to one or more wireless devices including at least the first wireless device, a wireless device specific message intended for the first wireless device, or both.

26. The apparatus of claim 22 , wherein the one or more processors are configured to cause the first wireless device to:

receive, from the second wireless device, a configuration message specific to bandwidth parts of the first frequency band and the second frequency band.

27. The apparatus of claim 22 , wherein the one or more processors are further configured to cause the second wireless device to:

receive, from the second wireless device, a configuration message specific to at least one transmission configuration indication state of the plurality of transmission configuration indication states associated with the first frequency band and the second frequency band at the second wireless device.

28. The apparatus of claim 22 , wherein the one or more processors are further configured to cause the second wireless device to:

receive, from the second wireless device, a configuration message as a weighted average metric for two or more transmission configuration indication states of the plurality of transmission configuration indication states associated with the first frequency band and the second frequency band at the second wireless device.

29. The apparatus of claim 28 , wherein the one or more processors are further configured to cause the second wireless device to:

communicate in the carrier aggregation based at least in part on weights for use with the weighted average metric and the two or more transmission configuration indication states of the plurality of transmission configuration indication states of the second beam used in determining a weighted average.

30. An apparatus for wireless communications at a second wireless device, comprising:

one or more memories; and

one or more processors coupled with the one or more memories and configured to cause the second wireless device to:

transmit, to a first wireless device, a carrier aggregation configuration for communications with the first wireless device, the carrier aggregation configuration comprising at least a first frequency band and a second frequency band; and

communicate, with the first wireless device, in carrier aggregation using a first beam on the first frequency band and a second beam on the second frequency band, the first beam and the second beam being based at least in part on a beam correlation parameter, the beam correlation parameter based at least in part on the carrier aggregation configuration, wherein the beam correlation parameter indicates a correlation between the first beam and the second beam in a direction based at least in part on the carrier aggregation in the direction in the first frequency band and in the second frequency band and across a plurality of transmission configuration indication states for the first frequency band and the second frequency band.

31. The apparatus of claim 30 , wherein the one or more processors are further configured to cause the second wireless device to:

transmit, from the second wireless device, an inter-band carrier aggregation configuration.

32. The apparatus of claim 31 , wherein the first frequency band is a first millimeter wave frequency band and the second frequency band is a second millimeter wave frequency band.

33. The apparatus of claim 31 , wherein the one or more processors are further configured to cause the second wireless device to:

transmit, to the first wireless device, a configuration message as a broadcast message to one or more wireless devices including at least the first wireless device, a wireless device specific message intended for the first wireless device, or both.

34. The apparatus of claim 31 , wherein the one or more processors are further configured to cause the second wireless device to:

transmit, to the first wireless device, a configuration message specific to bandwidth parts of the first frequency band and the second frequency band.

35. The apparatus of claim 31 , wherein the one or more processors are further configured to cause the second wireless device to:

transmit, to the first wireless device, a configuration message specific to at least one transmission configuration indication state of the plurality of transmission configuration indication states used in the first frequency band and the second frequency band at the second wireless device.

36. The apparatus of claim 31 , wherein the one or more processors are further configured to cause the second wireless device to:

transmit, to the first wireless device, a configuration message as a weighted average metric for two or more transmission configuration indication states of the plurality of transmission configuration indication states used in the first frequency band and the second frequency band at the second wireless device.

37. A non-transitory computer-readable medium storing code for wireless communication at a device in a wireless communications system, the code comprising instructions executable by one or more processors to cause the device to:

receive, from a wireless device, a carrier aggregation configuration for communications with the wireless device, the carrier aggregation configuration comprising at least a first frequency band and a second frequency band; and

communicate, with the wireless device, in carrier aggregation using a first beam on the first frequency band and a second beam on the second frequency band, the first beam and the second beam being based at least in part on a beam correlation parameter, the beam correlation parameter based at least in part on the received carrier aggregation configuration and indicating a correlation between the first beam and the second beam in a direction based at least in part on the carrier aggregation performed in the direction in the first frequency band and in the second frequency band and across a plurality of transmission configuration indication states for the first frequency band and the second frequency band.

38. The non-transitory computer-readable medium of claim 37 , wherein the code comprising instructions executable by the one or more processors to cause the device to receive the carrier aggregation configuration further comprises instructions executable by the one or more processors to cause the device to:

receive, from the wireless device, an inter-band carrier aggregation configuration.

39. The non-transitory computer-readable medium of claim 37 , wherein the wireless device is a first wireless device, and wherein the code comprising instructions executable by the one or more processors to cause the device to receive the carrier aggregation configuration further comprises instructions executable by the one or more processors to cause the device to:

receive, from the wireless device, a configuration message as a broadcast message to one or more wireless devices including at least a second wireless device, a wireless device specific message intended for the second wireless device, or both.

40. The non-transitory computer-readable medium of claim 37 , wherein the code comprising instructions executable by the one or more processors to cause the device to receive the carrier aggregation configuration further comprises instructions executable by the one or more processors to cause the device to:

receive, from the wireless device, a configuration message specific to bandwidth parts of the first frequency band and the second frequency band.

41. The non-transitory computer-readable medium of claim 37 , wherein the code comprising instructions executable by the one or more processors to cause the device to receive the carrier aggregation configuration further comprises instructions executable by the one or more processors to cause the device to:

receive, from the wireless device, a configuration message specific to at least one transmission configuration indication state of the plurality of transmission configuration indication states associated with the first frequency band and the second frequency band at the wireless device.

42. The non-transitory computer-readable medium of claim 37 , wherein the code comprising instructions executable by the one or more processors to cause the device to receive the carrier aggregation configuration further comprises instructions executable by the one or more processors to cause the device to:

receive, from the wireless device, a configuration message as a weighted average metric for two or more transmission configuration indication states of the plurality of transmission configuration indication states associated with the first frequency band and the second frequency band at the wireless device.

43. The non-transitory computer-readable medium of claim 42 , wherein the code comprising instructions executable by the one or more processors to cause the device to communicate in the carrier aggregation further comprises instructions executable by the one or more processors to cause the device to:

communicate in the carrier aggregation based at least in part on weights for use with the weighted average metric and the two or more transmission configuration indication states of the plurality of transmission configuration indication states of the second beam used in determining a weighted average.

44. A non-transitory computer-readable medium storing code for wireless communication at a device in a wireless communications system, the code comprising instructions executable by one or more processors to cause the device to:

transmit, to a first wireless device, a carrier aggregation configuration for communications with the first wireless device, the carrier aggregation configuration comprising at least a first frequency band and a second frequency band; and

communicate, with the first wireless device, in carrier aggregation using a first beam on the first frequency band and a second beam on the second frequency band, the first beam and the second beam being based at least in part on a beam correlation parameter, the beam correlation parameter based at least in part on the carrier aggregation configuration and indicating a correlation between the first beam and the second beam in a direction based at least in part on the carrier aggregation performed in the direction in the first frequency band and in the second frequency band and across a plurality of transmission configuration indication states for the first frequency band and the second frequency band.

45. The non-transitory computer-readable medium of claim 44 , wherein the code comprising instructions executable by the one or more processors to cause the device to transmit the carrier aggregation configuration further comprises instructions executable by the one or more processors to cause the device to:

transmit, from the device, an inter-band carrier aggregation configuration.

46. The non-transitory computer-readable medium of claim 44 , wherein the code comprising instructions executable by the one or more processors to cause the device to transmit the carrier aggregation configuration further comprises instructions executable by the one or more processors to cause the device to:

transmit, to the first wireless device, a configuration message as a broadcast message to one or more wireless devices including at least the first wireless device, a wireless device specific message intended for the first wireless device, or both.

47. The non-transitory computer-readable medium of claim 44 , wherein the code comprising instructions executable by the one or more processors to cause the device to transmit the carrier aggregation configuration further comprises instructions executable by the one or more processors to cause the device to:

transmit, to the first wireless device, a configuration message specific to bandwidth parts of the first frequency band and the second frequency band.

48. The non-transitory computer-readable medium of claim 44 , wherein the code comprising instructions executable by the one or more processors to cause the device to transmit the carrier aggregation configuration further comprises instructions executable by the one or more processors to cause the device to:

transmit, to the first wireless device, a configuration message specific to at least one transmission configuration indication state of the plurality of transmission configuration indication states used in the first frequency band and the second frequency band at the device.

49. The non-transitory computer-readable medium of claim 44 , wherein the code comprising instructions executable by the one or more processors to cause the device to transmit the carrier aggregation configuration further comprises instructions executable by the one or more processors to cause the device to:

transmit, to the first wireless device, a configuration message as a weighted average metric for two or more transmission configuration indication states of the plurality of transmission configuration indication states used in the first frequency band and the second frequency band at the device.

50. An apparatus for wireless communications at a first wireless device, comprising:

one or more memories; and

one or more processors coupled with the one or more memories and configured to cause the first wireless device to:

receive, from a second wireless device, a carrier aggregation configuration for communications with the second wireless device, the carrier aggregation configuration comprising at least a first frequency band and a second frequency band;

receive, from the second wireless device, a configuration message, wherein the configuration message comprises a weighted average metric for two or more transmission configuration indication states associated with the first frequency band and the second frequency band at the second wireless device; and

communicate, with the second wireless device, in carrier aggregation using a first beam on the first frequency band and a second beam on the second frequency band, the first beam and the second beam being based at least in part on a beam correlation parameter, the beam correlation parameter based at least in part on the received carrier aggregation configuration, wherein the beam correlation parameter indicates a correlation between the first beam and the second beam in a direction based at least in part on the carrier aggregation in the direction for the first frequency band and the second frequency band.

51. The apparatus of claim 50 , wherein the one or more processors is configured to cause the first wireless device to:

receive, from the second wireless device, an inter-band carrier aggregation configuration.

52. The apparatus of claim 50 , wherein the one or more processors are further configured to cause the first wireless device to:

receive, from the second wireless device, the configuration message as a broadcast message to one or more wireless devices including at least the first wireless device, a wireless device specific message intended for the first wireless device, or both.

53. The apparatus of claim 50 , wherein the one or more processors are further configured to cause the first wireless device to:

receive, from the second wireless device, the configuration message specific to bandwidth parts of the first frequency band and the second frequency band.

54. The apparatus of claim 50 , wherein the one or more processors are further configured to cause the first wireless device to:

receive, from the second wireless device, the configuration message specific to a transmission configuration indication state associated with the first frequency band and the second frequency band at the second wireless device, wherein the beam correlation parameter is based at least in part on the transmission configuration indication state.

55. The apparatus of claim 50 , wherein the one or more processors are further configured to cause the first wireless device to:

communicate in the carrier aggregation based at least in part on weights for use with the weighted average metric and the two or more transmission configuration indication states of the second beam used in determining a weighted average.

56. An apparatus for wireless communications at a second wireless device, comprising:

one or more memories; and

one or more processors coupled with the one or more memories and configured to cause the second wireless device to:

transmit, to a first wireless device, a carrier aggregation configuration for communications with the first wireless device, the carrier aggregation configuration comprising at least a first frequency band and a second frequency band;

transmit, to the first wireless device, a configuration message as a weighted average metric for two or more transmission configuration indication states used in the first frequency band and the second frequency band at the second wireless device; and

communicate, with the first wireless device, in carrier aggregation using a first beam on the first frequency band and a second beam on the second frequency band, the first beam and the second beam being based at least in part on a beam correlation parameter, the beam correlation parameter based at least in part on the carrier aggregation configuration, wherein the beam correlation parameter indicates a correlation between the first beam and the second beam in a direction based at least in part on the carrier aggregation in the direction for the first frequency band and the second frequency band.

57. The apparatus of claim 56 , wherein the one or more processors are further configured to cause the second wireless device to:

transmit, to the first wireless device, the configuration message as a broadcast message to one or more wireless devices including at least the first wireless device, a wireless device specific message intended for the first wireless device, or both.

58. The apparatus of claim 56 , wherein the one or more processors are further configured to cause the second wireless device to:

transmit, to the first wireless device, the configuration message specific to bandwidth parts of the first frequency band and the second frequency band.

59. The apparatus of claim 56 , wherein the one or more processors are further configured to cause the second wireless device to:

transmit, to the first wireless device, the configuration message specific to a transmission configuration indication state used in the first frequency band and the second frequency band at the second wireless device, wherein the beam correlation parameter is based at least in part on the transmission configuration indication state.

60. The apparatus of claim 56 , wherein the one or more processors are further configured to cause the second wireless device to:

transmit, from the second wireless device, an inter-band carrier aggregation configuration.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 16, 2021
From: RAGHAVAN, VASANTHAN; LUO, TAO; LI, JUNYI; DOUGLAS, ROBERT KEITH; DOROSENCO, ALEXANDER
To: QUALCOMM INCORPORATED
Reel/Frame 055272/0251 →
Continuity (2)
Provisional Application 62966533 · Jan 27, 2020
Related Publication 20210234593A1 · Jul 29, 2021
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