IP Library › Granted Patent US 12,401,403
Granted Patent B2
US 12,401,403 · App. 17/156,767 · Granted Aug 26, 2025

Antenna group-specific parameter configuration in millimeter wave communications

Inventors: Vasanthan Raghavan (West Windsor Township, NJ); Tao Luo (San Diego, CA); Junyi Li (Franklin Park, NJ)
Assignee: QUALCOMM Incorporated
H04B7/0639H04W52/146
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Quick Facts
Patent No.
US 12,401,403
App. No.
17/156,767
Granted
Aug 26, 2025
Kind
B2
Abstract

Methods, systems, and devices for wireless communications are described in which a first wireless device, such as a user equipment (UE), may select a set of different groups of antenna elements that are preferred for use in millimeter wave communications at the first wireless device. The first wireless device may provide one or more parameters to a second wireless device that indicates a number of antenna elements of one or more of the groups of antenna elements that is used to determine one or more transmission control parameters. The second wireless device may determine one or more transmission control parameters based on the indicated parameters and number of antenna elements, which may be used for communications with the first wireless device.

Claims (92)

1. A method for wireless communications, comprising:

receiving, at a first wireless device, signaling indicating a first set of antenna elements for communications with a second wireless device and indicating one or more transmission control parameters corresponding to an indicated quantity of antenna elements in the first set of antenna elements, the first set of antenna elements including one or more of a plurality of antenna elements of the first wireless device; and

communicating with the second wireless device, using the first set of antenna elements, based at least in part on the one or more transmission control parameters, the one or more transmission control parameters including a power control parameter for uplink transmissions via a millimeter wave frequency band to the second wireless device, and the power control parameter being determined based at least in part on the indicated quantity of antenna elements in the first set of antenna elements.

2. The method of claim 1 , wherein:

the one or more transmission control parameters include a modulation and coding scheme (MCS)-dependent phase compensation parameter for downlink transmissions received from the second wireless device via the millimeter wave frequency band; and

the MCS-dependent phase compensation parameter is determined based on the indicated quantity of antenna elements.

3. The method of claim 1 , further comprising:

receiving, from the second wireless device, an indication to configure a digital beamforming codebook that is to be used for the communications with the second wireless device, wherein one or more parameters associated with the digital beamforming codebook are determined based on the indicated quantity of antenna elements.

4. The method of claim 1 , the receiving comprising:

measuring one or more training signals received from the second wireless device using two or more different sets of antennas;

transmitting a measurement report to the second wireless device that indicates the first set of antenna elements; and

receiving an indication from the second wireless device that the first set of antenna elements is to be used for the communications with the second wireless device.

5. The method of claim 4 , wherein the measurement report is transmitted to the second wireless device via radio resource control (RRC) signaling.

6. The method of claim 1 , wherein the one or more transmission control parameters are determined based at least in part on a mapping between the indicated quantity of antenna elements and associated transmission control parameters.

7. 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.

8. A method for wireless communication at a second wireless device, comprising:

transmitting two or more training signals to a first wireless device as part of a beam training procedure for the first wireless device;

receiving, from the first wireless device, an indication of a first set of antenna elements and one or more transmission control parameters corresponding to an indicated quantity of antenna elements in the first set of antenna elements; and

transmitting control information that indicates digital beamforming codebook parameters to the first wireless device, the digital beamforming codebook parameters configuring a digital beamforming codebook that is to be used for communications with the second wireless device, the digital beamforming codebook parameters determined based at least in part on the one or more transmission control parameters corresponding to the indicated quantity of antenna elements in the first set of antenna elements.

9. The method of claim 8 , further comprising:

receiving, from the first wireless device, a power control parameter for uplink transmissions from the first wireless device that is associated with the one or more transmission control parameters corresponding to the indicated quantity of antenna elements; and

receiving the uplink transmissions from the first wireless device based at least in part on one or more receive parameters, the one or more receive parameters based at least in part on the power control parameter.

10. The method of claim 9 , wherein the one or more receive parameters are determined based at least in part on a mapping between the indicated quantity of antenna elements and associated receive parameters.

11. The method of claim 8 , wherein the indication of the first set of antenna elements is received with a measurement report from the first wireless device, and the determining the digital beamforming codebook parameters is further based at least in part on the measurement report.

12. The method of claim 11 , wherein the measurement report is received from the first wireless device via radio resource control (RRC) signaling.

13. The method of claim 8 , 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.

14. An apparatus for wireless communications, comprising:

one or more processors; and

one or more memories coupled with the one or more processors, the one or more processors configured to cause the apparatus to:

receive, at a first wireless device, signaling that indicates a first set of antenna elements for communications with a second wireless device and that indicates one or more transmission control parameters that correspond to an indicated quantity of antenna elements in the first set of antenna elements, the first set of antenna elements includes one or more of a plurality of antenna elements of the first wireless device; and

communicate with the second wireless device through use of the first set of antenna elements, based at least in part on the one or more transmission control parameters, wherein the one or more transmission control parameters include a power control parameter for uplink transmissions via a millimeter wave frequency band to the second wireless device, and wherein the power control parameter is determined based at least in part on the indicated quantity number of antenna elements in the first set of antenna elements.

15. The apparatus of claim 14 , wherein:

the one or more transmission control parameters include a modulation and coding scheme (MCS)-dependent phase compensation parameter for downlink transmissions received from the second wireless device via the millimeter wave frequency band; and

the MCS-dependent phase compensation parameter is determined based on the indicated quantity of antenna elements.

16. The apparatus of claim 14 , the one or more processors configured to cause the apparatus to:

receive, from the second wireless device, an indication to configure a digital beamforming codebook that is to be used for the communications with the second wireless device, wherein one or more parameters associated with the digital beamforming codebook are determined based on the indicated quantity of antenna elements.

17. The apparatus of claim 14 , the one or more processors configured to cause the apparatus to:

measure one or more training signals received from the second wireless device through use of two or more different sets of antennas;

transmit a measurement report to the second wireless device that indicates the first set of antenna elements; and

receive an indication from the second wireless device that the first set of antenna elements is to be used for the communications with the second wireless device.

18. The apparatus of claim 17 , wherein the measurement report is transmitted to the second wireless device via radio resource control (RRC) signaling.

19. The apparatus of claim 14 , wherein the one or more transmission control parameters are determined based at least in part on a mapping between the indicated quantity of antenna elements and associated transmission control parameters.

20. The apparatus of claim 14 , 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 apparatus of claim 14 , wherein the apparatus comprises a set of antennas.

22. An apparatus for wireless communication at a second wireless device, comprising:

one or more processors; and

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

transmit two or more training signals to a first wireless device as part of a beam training procedure for the first wireless device;

receive, from the first wireless device, an indication of a first set of antenna elements and one or more transmission control parameters that correspond to an indicated quantity of antenna elements in the first set of antenna elements; and

transmit control information that indicates digital beamforming codebook parameters to the first wireless device, wherein the digital beamforming codebook parameters configure a digital beamforming codebook that is to be used for communications with the second wireless device, the digital beamforming codebook parameters determined based at least in part on a correspondence between the one or more transmission control parameters and the indicated quantity of antenna elements in the first set of antenna elements.

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

receive, from the first wireless device, a power control parameter for uplink transmissions from the first wireless device that is associated with the one or more transmission control parameters that correspond to the indicated quantity of antenna elements; and

receive the uplink transmissions from the first wireless device based at least in part on one or more receive parameters, the one or more receive parameters based at least in part on the power control parameter.

24. The apparatus of claim 23 , wherein the one or more receive parameters are determined based at least in part on a mapping between the indicated quantity of antenna elements and associated receive parameters.

25. The apparatus of claim 22 , wherein:

the indication of the first set of antenna elements is received with a measurement report from the first wireless device, and

the digital beamforming codebook parameters are determined further based at least in part on the measurement report.

26. The apparatus of claim 25 , wherein the measurement report is received from the first wireless device via radio resource control (RRC) signaling.

27. The apparatus of claim 22 , 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.

28. The apparatus of claim 22 , wherein the second wireless device comprises one or more of an antenna array, an antenna element, or an antenna subarray.

29. An apparatus for wireless communications, comprising:

means for receiving, at a first wireless device, signaling indicating a first set of antenna elements for communications with a second wireless device and indicating one or more transmission control parameters corresponding to an indicated quantity of antenna elements in the first set of antenna elements, the first set of antenna elements including one or more of a plurality of antenna elements of the first wireless device; and

means for communicating with the second wireless device, using the first set of antenna elements, based at least in part on the one or more transmission control parameters, wherein the one or more transmission control parameters include a power control parameter for uplink transmissions via a millimeter wave frequency band to the second wireless device, and wherein the power control parameter is determined based at least in part on the indicated quantity of antenna elements in the first set of antenna elements.

30. The apparatus of claim 29 , wherein:

the one or more transmission control parameters include a modulation and coding scheme (MCS)-dependent phase compensation parameter for downlink transmissions received from the second wireless device via the millimeter wave frequency band; and

the MCS-dependent phase compensation parameter is determined based on the indicated quantity of antenna elements.

31. The apparatus of claim 29 , further comprising:

means for receiving, from the second wireless device, an indication to configure a digital beamforming codebook that is to be used for the communications with the second wireless device, wherein one or more parameters associated with the digital beamforming codebook are determined based on the indicated quantity of antenna elements.

32. An apparatus for wireless communication at a second wireless device, comprising:

means for transmitting two or more training signals to a first wireless device as part of a beam training procedure for the first wireless device;

means for receiving, from the first wireless device, an indication of a first set of antenna elements and one or more transmission control parameters corresponding to an indicated quantity of antenna elements in the first set of antenna elements; and

means for transmitting control information that indicates digital beamforming codebook parameters to the first wireless device, the digital beamforming codebook parameters configuring a digital beamforming codebook that is to be used for communications with the second wireless device, the digital beamforming codebook parameters determined based at least in part on the one or more transmission control parameters corresponding to the indicated quantity of antenna elements in the first set of antenna elements.

33. The apparatus of claim 32 , further comprising:

means for receiving, from the first wireless device, a power control parameter for uplink transmissions from the first wireless device that is associated with the one or more transmission control parameters corresponding to the indicated quantity of antenna elements; and

means for receiving the uplink transmissions from the first wireless device based at least in part on one or more receive parameters, the one or more receive parameters based at least in part on the power control parameter.

34. The apparatus of claim 33 , wherein the one or more receive parameters are determined based at least in part on a mapping between the indicated quantity of antenna elements and associated receive parameters.

35. A non-transitory computer-readable medium storing code for wireless communications, the code comprising instructions executable by one or more processors to:

receive, at a first wireless device, signaling indicating a first set of antenna elements for communications with a second wireless device and indicating one or more transmission control parameters corresponding to an indicated quantity of antenna elements in the first set of antenna elements, the first set of antenna elements including one or more of a plurality of antenna elements of the first wireless device; and

communicate with the second wireless device, using the first set of antenna elements, based at least in part on the one or more transmission control parameters, the one or more transmission control parameters including a power control parameter for uplink transmissions via a millimeter wave frequency band to the second wireless device, and the power control parameter being determined based at least in part on the indicated quantity of antenna elements in the first set of antenna elements.

36. The non-transitory computer-readable medium of claim 35 , wherein:

the one or more transmission control parameters include a modulation and coding scheme (MCS)-dependent phase compensation parameter for downlink transmissions received from the second wireless device via the millimeter wave frequency band; and

the MCS-dependent phase compensation parameter is determined based on the indicated quantity of antenna elements.

37. The non-transitory computer-readable medium of claim 35 , the instructions further executable by the one or more processors to:

receive, from the second wireless device, an indication to configure a digital beamforming codebook that is to be used for the communications with the second wireless device, wherein one or more parameters associated with the digital beamforming codebook are determined based on the indicated quantity of antenna elements.

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

transmit two or more training signals to a first wireless device as part of a beam training procedure for the first wireless device;

receive, from the first wireless device, an indication of a first set of antenna elements and one or more transmission control parameters corresponding to an indicated quantity of antenna elements in the first set of antenna elements; and

transmit control information that indicates digital beamforming codebook parameters to the first wireless device, the digital beamforming codebook parameters configuring a digital beamforming codebook that is to be used for communications with the second wireless device, the digital beamforming codebook parameters determined based at least in part on the one or more transmission control parameters corresponding to the indicated quantity of antenna elements in the first set of antenna elements.

39. The non-transitory computer-readable medium of claim 38 , the instructions further executable by the one or more processors to:

receive, from the first wireless device, a power control parameter for uplink transmissions from the first wireless device that is associated with the one or more transmission control parameters corresponding to the indicated quantity of antenna elements; and

receive the uplink transmissions from the first wireless device based at least in part on one or more receive parameters, the one or more receive parameters based at least in part on the power control parameter.

40. The non-transitory computer-readable medium of claim 39 , wherein the one or more receive parameters are determined based at least in part on a mapping between the indicated quantity of antenna elements and associated receive parameters.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 16, 2021
From: RAGHAVAN, VASANTHAN; LUO, TAO; LI, JUNYI
To: QUALCOMM INCORPORATED
Reel/Frame 055267/0369 →
Continuity (2)
Provisional Application 62966498 · Jan 27, 2020
Related Publication 20210234598A1 · Jul 29, 2021
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International Search Report and Written Opinion—PCT/US2021/015060—ISA/EPO—dated Apr. 21, 2021 (201350WO). [cited by applicant]
Motorola Mobility, et al., “Power Control for Multi-Panel Uplink Transmission”, 3GPP TSG RAN WG1 AH-1901, 3GPP Draft; R1-1900944-PC-Emimo-Other-Final, 3rd Generation Partnership Project (3GPP), Mobile Competence Centre;… [cited by applicant]
Samsung: “Discussions on NR UL Multi-Panel/Multi-TRP”, 3GPP TSG RAN WG1 Meeting #90, 3GPP Draft; R1-1713579 UL Multi TRP Panel V0, 3rd Generation Partnership Project (3GPP), Mobile Competence Centre 650, Route Des Lucio… [cited by applicant]
Interdigital., et al., “Views on Panel Activation and Deactivation”, 3GPP TSG RAN WG1 #98, 3GPP Draft; R1-1908233 Views on Panel Activation and Deactivation, 3rd Generation Partnership Project (3GPP), Mobile Competence … [cited by applicant]
Ericsson: “FFSs Regarding Early Measurement Configurations”, 3GPP Draft, 3GPP TSG-RAN WG2#106, R2-1907254—FFSS Regarding Early Measurement Configurations, 3rd Generation Partnership Project (3GPP), Mobile Competence Cen… [cited by applicant]
Huawei et al., “Low Latency of SCell Activation”, 3GPP Draft, 3GPP TSG RAN WG1 Meeting #96bis, R1-1903992, 3rd Generation Partnership Project (3GPP), Mobile Competence Centre, 650, Route Des Lucioles, F-06921 Sophia-Ant… [cited by applicant]
Fraunhofer Iis, et al., “Discussion on Signaling of Beam Correspondence”, 3GPP TSG RAN WG1 Meeting #94bis, 3GPP Draft; R1-1811086_Discussion_on_Signaling_of_Beam_ Correspondence, 3rd Generation Partnership Project (3GPP… [cited by applicant]
Mediatek Inc: “Discussion on UL Beam Management Procedure”, 3GPP TSG RAN WG1 Meeting #88, 3GPP Draft; R1-1702731 Discussion on UL Beam Management Procedure Final, 3rd Generation Partnership Project (3GPP), Mobile Compet… [cited by applicant]
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Huawei, et al., “UL/DL BM for Latency/Overhead Reduction”, 3GPP Draft, R1-1903974, 3GPP TSG RAN WG1 #96bis, 3rd Generation Partnership Project (3GPP), Mobile Competence Centre, 650, Route Des Lucioles, F-06921 Sophia-An… [cited by applicant]
Lenovo, et al., “Discussion of Beam Failure Recovery for Carrier Aggregation”, 3GPP Draft, 3GPP TSG RAN WG1 Meeting #92, R1-1804211_BFR, 3rd Generation Partnership Project (3GPP), Mobile Competence Centre, 650, Route De… [cited by applicant]
Samsung: “Remaining Details on QCL”, 3GPP Draft, 3GPP TSG RAN WG1 #90b, R1-1717634-QCL V2, 3rd Generation Partnership Project (3GPP), Mobile Competence Centre, 650, Route Des Lucioles, F-06921 Sophia-Antipolis Cedex, Fr… [cited by applicant]
Moderator (Samsung): “Moderator Summary for Multi-Beam Enhancement: Proposal Categorization”, 3GPP TSG RAN WG1 #102-e, R1-2006985, e-Meeting, 20200817-20200828, 27 Pages, Aug. 25, 2020 (Aug. 25, 2020) sections 1-2, sect… [cited by applicant]
Raghavan, et al., “Antenna Placement and Performance Tradeoffs With Hand Blockage in Millimeter Wave Systems”, IEEE, Apr. 2019 (Year: 2019), 16 Pages. [cited by applicant]
Ali A., et al., “Spatial Covariance Estimation for Millimeter Wave Hybrid Systems using Out-of-Band Information”, May 2019, Center for Transportation Research, pp. 1-14. [cited by applicant]
Jain I. K., “Millimeter Wave Beam Training: A Survey”, arXiv, Sep. 2018, 2 Pages. [cited by applicant]
Zheng Z., et al., “Time of Arrival and Time Sum of Arrival Based NLOS Identification and Localization”, IEEE 2012, 5 Pages. [cited by applicant]
Nokia, et al., “On CSI-RS Design for DL Beam Management”, 3GPP Draft, 3GPP TSG RAN WG1 #88, R1-1703179, Athens, Greece, Feb. 13-17, 2017, 14 Pages, Feb. 7, 2017. [cited by applicant]
Chen C., “Resolution to CIDs Related to Asymmetric Beamforming and Directional Allocation”, IEEE 802.11-18/0158r3, Jan. 15, 2018, pp. 1-8. [cited by applicant]
Interdigital Inc: “Views on Panel Activation and Deactivation”, 3GPP TSG RAN WG1 #98, R1-1908233, Prague, CZ, Aug. 26, 2019—Aug. 30, 2019, 6 Pages. [cited by applicant]
Fraunhofer Iis., et al., “Discussion on Signaling of Beam Correspondence”, R1-1811086, 3GPP TSG RAN WG1 Meeting #94bis Chengdu, China Oct. 8-12, 2018, 5 Pages. [cited by applicant]
Mediatek Inc: “Discussion on UL Beam Management Procedure”, R1-1702731, 3GPP TSG RAN WG1 Meeting #88 Athens, Greece, Feb. 13-17, 2017, 4 Pages. [cited by applicant]
Apple Inc: “FR2 DL Inter-Band CA Architecture Considerations”, 3GPP RAN WG4 Meeting #93, R4-1913540, Reno, USA, Nov. 18-21, 2019, 8 Pages, Nov. 9, 2019. [cited by applicant]
Samsung: “Remaining Details on QCL”, 3GPP TSG RAN WG1#90b, R1-1717634, Prague, Czech Republic, 9th-13th, Oct. 2017, 9 Pages, Oct. 3, 2017, Section 4, 4.2 Intercarrier QCL. [cited by applicant]