IP Library Granted Patent US 12,495,320
Granted Patent B2
US 12,495,320 · App. 18/012,728 · Granted Dec 9, 2025

Method and apparatus for beam management using AI/ML

Inventors: Erdem Bala (San Mateo, CA); Koichiro Kitagawa (Tokyo, JP); Venkatesh Muralidhara (Bangalore, IN); Hari Swaroop Kanzal Venkatesha (Bangalore, IN); Keerthi Srinivas (Bangalore, IN); Sri Venkata Gautham Thasari (Bangalore, IN)
Assignees: Rakuten Mobile, Inc.; RAKUTEN SYMPHONY, INC.
H04W24/08H04L5/0048H04L41/16
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Quick Facts
Patent No.
US 12,495,320
App. No.
18/012,728
Granted
Dec 9, 2025
Kind
B2
Abstract

A method performed by at least one processor in a user equipment (UE), the method including receiving, from a base station over a channel, a plurality of reference signals corresponding to a state of the channel. The method further including measuring a subset of the received plurality of reference signals. The method further including transmitting, to the base station within a first time interval, a channel status report corresponding to the measuring of the subset of the received plurality of reference signals and a prediction of one more reference signals received by the UE after the first time interval.

Claims (39)

1 . A method performed by at least one processor in a user equipment (UE), the method comprising:

receiving, from a base station over a channel, a plurality of reference signals corresponding to a state of the channel;

measuring a subset of the received plurality of reference signals; and

transmitting, to the base station within a first time interval, a channel status report corresponding to the measuring of the subset of the received plurality of reference signals and a prediction of one more reference signals received by the UE after the first time interval.

2 . The method according to claim 1 , wherein the prediction of the one or more reference signals is performed by the base station using an artificial intelligence model learning engine, wherein the prediction of the one or more reference signals is based on the measuring of the subset of the received plurality of reference signals.

3 . The method according to claim 1 , wherein the prediction of the one or more reference signals is performed by the UE using an artificial intelligence model learning engine, wherein the prediction of the one or more reference signals is based on the measured subset of the received plurality of reference signals, and wherein the channel status report includes the prediction of the one or more reference signals.

4 . The method according to claim 1 , wherein the predicted one or more reference signals includes at least one reference signal not included in the measured subset of the received plurality of reference signals.

5 . The method according to claim 1 , wherein the plurality of reference signals include a reference resource signal that specifies the subset of the plurality of reference signals that are measured.

6 . The method according to claim 5 , wherein the reference resource signal specifies the last K reference signals received before the reference resource signal as the subset of the plurality of reference signals that are measured, wherein K is an integer greater than zero.

7 . The method according to claim 5 , wherein the reference resource signal is received at a slot K, wherein K is an integer greater than zero, and wherein the references resource signal specifies one or more references signals at one or more intervals with respect to slot K as the subset of the plurality of reference signals that are measured.

8 . The method according to claim 7 , wherein each interval in the one or more intervals includes at least two reference signals.

9 . The method according to claim 1 , further comprising:

receiving the predicted one or more reference signals after the first time interval;

measuring the predicted one or more reference signals, wherein the prediction of the one or more reference signals is performed using an artificial intelligence model and is based on the measuring of the subset of the received plurality of reference signals;

determining a reference signal from the measured predicted one or more reference signals that has a highest power level; and

reporting, to the base station, the reference signal from the measured predicted one or more reference signals that has the highest power level.

10 . A user equipment (UE) comprising:

at least one memory configured to store computer program code; and

at least one processor configured to access said at least one memory and operate as instructed by the computer program code, the computer program code including:

receiving code configured to cause at least one of said at least one processor to receive, from a base station over a channel, a plurality of reference signals corresponding to a state of the channel,

first measuring code configured to cause at least one of said at least one processor to measure a subset of the received plurality of reference signals, and

transmitting code configured to cause at least one of said at least one processor to transmit, to the base station within a first time interval, a channel status report corresponding to the measuring of the subset of the received plurality of reference signals and a prediction of one more reference signals received by the UE after the first time interval.

11 . The UE according to claim 10 , wherein the prediction of the one or more reference signals is performed by the base station using an artificial intelligence model learning engine, wherein the prediction of the one or more reference signals is based on the measuring of the subset of the received plurality of reference signals.

12 . The UE according to claim 10 , wherein the prediction of the one or more reference signals is performed by the UE using an artificial intelligence model learning engine, wherein the prediction of the one or more reference signals is based on the measured subset of the received plurality of reference signals, and wherein the channel status report includes the prediction of the one or more reference signals.

13 . The UE according to claim 10 , wherein the predicted one or more reference signals includes at least one reference signal not included in the measured subset of the received plurality of reference signals.

14 . The UE according to claim 10 , wherein the plurality of reference signals include a reference resource signal that specifies the subset of the plurality of reference signals that are measured.

15 . The UE according to claim 14 , wherein the reference resource signal specifies the last K reference signals received before the reference resource signal as the subset of the plurality of reference signals that are measured, wherein K is an integer greater than zero.

16 . The UE according to claim 14 , wherein the reference resource signal is received at a slot K, wherein K is an integer greater than zero, and wherein the references resource signal specifies one or more references signals at one or more intervals with respect to slot K as the subset of the plurality of reference signals that are measured.

17 . The UE according to claim 16 , wherein each interval in the one or more intervals includes at least two reference signals.

18 . The UE according to claim 10 , wherein the computer program code further includes:

additional receiving code configured to cause at least one of said at least one processor to receive the predicted one or more reference signals after the first time interval;

second measuring code configured to cause at least one of said at least one processor to measure the predicted one or more reference signals, wherein the prediction of the one or more reference signals is performed using an artificial intelligence model and is based on the measuring of the subset of the received plurality of reference signals,

determining code configured to cause at least one of said at least one processor to determine a reference signal from the measured predicted one or more reference signals that has a highest power level, and

reporting code configured to cause at least one of said at least one processor to report, to the base station, the reference signal from the measured predicted one or more reference signals that has the highest power level.

19 . A non-transitory computer readable medium having instructions stored therein, which when executed by a processor in a user equipment (UE) cause the UE to execute a method comprising:

receiving, from a base station over a channel, a plurality of reference signals corresponding to a state of the channel;

measuring a subset of the received plurality of reference signals; and

transmitting, to the base station within a first time interval, a channel status report corresponding to the measuring of the subset of the received plurality of reference signals and a prediction of one more reference signals received by the UE after the first time interval.

20 . The non-transitory computer readable medium according to claim 19 , wherein the prediction of the one or more reference signals is performed by the base station using an artificial intelligence model learning engine, wherein the prediction of the one or more reference signals is based on the measuring of the subset of the received plurality of reference signals.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 19, 2024
From: RAKUTEN MOBILE USA LLC
To: RAKUTEN SYMPHONY, INC.
Reel/Frame 069631/0680 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2024
From: ALTIOSTAR NETWORKS INDIA PRIVATE LIMITED
To: RAKUTEN SYMPHONY, INC.
Reel/Frame 068023/0473 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 23, 2022
From: BALA, ERDEM; KITAGAWA, KOICHIRO; MURALIDHARA, VENKATESH; VENKATESHA, HARI SWAROOP KANZAL; SRINIVAS, KEERTHI; THASARI, SRI VENKATA GAUTHAM
To: RAKUTEN MOBILE USA LLC; RAKUTEN MOBILE. INC,; ALTIOSTAR NETWORKS INDIA PRIVATE LIMITED
Reel/Frame 062194/0666 →
Priority Claims (1)
IN 202241045765 · Aug 10, 2022 · national
Continuity (1)
Related Publication 20240244460A1 · Jul 18, 2024
References Cited (24)
US 11337095B2 · Zeng · 2022 [cited by examiner]
US 11405088B2 · Bai · 2022 [cited by examiner]
US 11483042B2 · Xue · 2022 [cited by examiner]
US 11569961B2 · Farmanbar · 2023 [cited by examiner]
US 20200259545A1 · Bai · 2020 [cited by examiner]
US 20210067297A1 · Farmanbar · 2021 [cited by examiner]
US 20210211912A1 · Zeng · 2021 [cited by examiner]
US 20210351885A1 · Chavva et al. · 2021 [cited by applicant]
US 20210376895A1 · Xue · 2021 [cited by examiner]
US 20220094411A1 · Yoo · 2022 [cited by examiner]
US 20230068245A1 · Khoshnevisan · 2023 [cited by examiner]
US 20230130407A1 · Dimou · 2023 [cited by examiner]
US 20230198604A1 · Bhamri · 2023 [cited by examiner]
US 20230276287A1 · Matsumura · 2023 [cited by examiner]
US 20230379030A1 · Sun · 2023 [cited by examiner]
JP 2012080522A · 2012 [cited by applicant]
WO WO2023115567A1 · 2023 [cited by examiner]
WO WO2024035419A1 · 2024 [cited by examiner]
International Search Report issued Mar. 20, 2023 in International Application No. PCT/US22/50029. [cited by applicant]
Written Opinion issued Mar. 20, 2023 in International Application No. PCT/US22/50029. [cited by applicant]
CMCC, “Discussion on other aspects on AIML for beam management”, 3GPP TSG RAN WG1 #109-e, e-Meeting, May 9-20, 2022, R1-2204298, pp. 2-6 (5 pages total). [cited by applicant]
Nokia et al., “Evaluation on ML for beam management”, 3GPP TSG RAN WG1 #109, R1-2204573, May 9-20, 2022, pp. 1-19. [cited by applicant]
Samsung, “Representative sub use cases for beam management”, 3GPP TSG RAN WG1 #109-e, R1-2203900, May 9-20, 2022, pp. 1-7. [cited by applicant]
Huawei et al., “Discussion on Al/ML for beam management”, 3GPP TSG RAN WG1 Meeting #109-e, R1-2203143, pp. 1-7. [cited by applicant]