IP Library Granted Patent US 12,279,133
Granted Patent B2
US 12,279,133 · App. 17/848,348 · Granted Apr 15, 2025

Reference signal transmission using quasi co-location (QCL) resources

Inventors: Jin Liu (Shanghai, CN); Xiaobo Zhang (Shanghai, CN)
Assignee: BUNKER HILL TECHNOLOGIES LLC
H04W16/28H04L5/0051H04W72/0446H04W72/0453
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Quick Facts
Patent No.
US 12,279,133
App. No.
17/848,348
Granted
Apr 15, 2025
Kind
B2
Abstract

A method and device in a node for wireless communications. A first node transmits a first signaling; transmits a first reference signal and a second signal through a first antenna port in a first time-frequency resource set; the first signaling is used to indicate a number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set; the first reference signal is used to demodulate the second signal; the first antenna port conforms to a first Quasi Co-Located (QCL) relation, and the first QCL relationship is one of Q candidate QCL relationships; the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to indicate the first QCL relationship out of the Q candidate QCL relationships, Q being a positive integer greater than 1. The application effectively solves the signaling overhead problem of transmission configuration indication.

Claims (45)

1. A first node for wireless communications, comprising:

a first transmitter, transmitting a first signaling; and

a second transmitter, transmitting a first reference signal and a second signal through a first antenna port in a first time-frequency resource set;

wherein the first signaling is used to indicate the first time-frequency resource set, and the first signaling is used to indicate a number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set; the first reference signal is used to demodulate the second signal; the first antenna port conforms to a first Quasi Co-Located (QCL) relation, and the first QCL relationship is one of Q candidate QCL relationships; any of the Q candidate QCL relationships comprises at least one of a candidate reference signal or a QCL type; the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to indicate the first QCL relationship out of the Q candidate QCL relationships, Q being a positive integer greater than 1; wherein a first receiver receives second information, the second information and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set are used together to determine Q0 candidate QCL relationship(s) out of the Q candidate QCL relationships, and the first information is used to determine the first QCL relationship out of the Q0 candidate QCL relationship(s).

2. The first node according to claim 1 , wherein any of the Q candidate QCL relationships comprises a candidate reference signal, the first QCL relationship comprises a first candidate reference signal, and the first antenna port is QCL with the first candidate reference signal; the first candidate reference signal is one of M candidate reference signal(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first candidate reference signal out of the M candidate reference signal(s), M being a positive integer not greater than the Q;

or, any of the Q candidate QCL relationships comprises a QCL type, the first QCL relationship comprises a first QCL type, and the first antenna port conforms to the first QCL type; the first QCL type is one of N QCL type(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL type out of the N QCL type(s), N being a positive integer not greater than the Q;

or, any of the Q candidate QCL relationships comprises a candidate reference signal and a QCL type, the first QCL relationship comprises a first candidate reference signal and a first QCL type, and the first antenna port is QCL with the first candidate reference signal; the first candidate reference signal is one of M candidate reference signal(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first candidate reference signal out of the M candidate reference signal(s), M being a positive integer not greater than the Q, and the first antenna port conforms to the first QCL type; the first QCL type is one of N QCL type(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL type out of the N QCL type(s), N being a positive integer not greater than the Q.

3. The first node according to claim 1 , wherein the first signaling comprises first information, and the first information in the first signaling and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set are used together to determine the first QCL relationship out of the Q candidate QCL relationships;

or, the first signaling comprises first information, and the first information in the first signaling is used to determine the first QCL relationship out of the Q candidate QCL relationships; the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine whether the first information is disabled.

4. The first node according to claim 2 , wherein the first signaling comprises first information, and the first information in the first signaling and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set are used together to determine the first QCL relationship out of the Q candidate QCL relationships;

or, the first signaling comprises first information, and the first information in the first signaling is used to determine the first QCL relationship out of the Q candidate QCL relationships; the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine whether the first information is disabled.

5. The first node according to claim 4 , wherein a first receiver receives second information, the second information and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set are used together to determine Q0 candidate QCL relationship(s) out of the Q candidate QCL relationships, and the first information is used to determine the first QCL relationship out of the Q0 candidate QCL relationship(s).

6. A second node for wireless communications, comprising:

a second receiver, receiving a first signaling; and

a third receiver, receiving a first reference signal and a second signal in a first time-frequency resource set;

wherein the first signaling is used to determine the first time-frequency resource set, and the first signaling is used to determine a number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set; the first reference signal is used to demodulate the second signal; the first reference signal and the second signal is transmitted through a first antenna port, the first antenna port conforms to a first QCL relationship, and the first QCL relationship is one of Q candidate QCL relationships; any of the Q candidate QCL relationships comprises at least one of a candidate reference signal or a QCL type; the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL relationship out of the Q candidate QCL relationships, Q being a positive integer greater than 1; wherein the third receiver receives second information; the second information and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set are used together to determine Q0 candidate QCL relationship(s) out of the Q candidate QCL relationships, and the first information is used to determine the first QCL relationship out of the Q0 candidate QCL relationship(s).

7. The second node according to claim 6 , wherein the first signaling comprises first information, and the first information in the first signaling and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set are used together to determine the first QCL relationship out of the Q candidate QCL relationships;

or, the first signaling comprises first information, and the first information in the first signaling is used to determine the first QCL relationship out of the Q candidate QCL relationships; the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine whether the first information is disabled.

8. The second node according to claim 6 , wherein any of the Q candidate QCL relationships comprises a candidate reference signal, the first QCL relationship comprises a first candidate reference signal, and the first antenna port is QCL with the first candidate reference signal; the first candidate reference signal is one of M candidate reference signal(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first candidate reference signal out of the M candidate reference signal(s), M being a positive integer not greater than the Q;

or, any of the Q candidate QCL relationships comprises a QCL type, the first QCL relationship comprises a first QCL type, and the first antenna port conforms to the first QCL type; the first QCL type is one of N QCL type(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL type out of the N QCL type(s), N being a positive integer not greater than the Q;

or, any of the Q candidate QCL relationships comprises a candidate reference signal, the first QCL relationship comprises a first candidate reference signal and a first QCL type, and the first antenna port is QCL with the first candidate reference signal; the first candidate reference signal is one of M candidate reference signal(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first candidate reference signal out of the M candidate reference signal(s), M being a positive integer not greater than the Q; the first antenna port conforms to the first QCL type; the first QCL type is one of N QCL type(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL type out of the N QCL type(s), N being a positive integer not greater than the Q.

9. The second node according to claim 7 , wherein any of the Q candidate QCL relationships comprises a candidate reference signal, the first QCL relationship comprises a first candidate reference signal, and the first antenna port is QCL with the first candidate reference signal; the first candidate reference signal is one of M candidate reference signal(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first candidate reference signal out of the M candidate reference signal(s), M being a positive integer not greater than the Q;

or, any of the Q candidate QCL relationships comprises a QCL type, the first QCL relationship comprises a first QCL type, and the first antenna port conforms to the first QCL type; the first QCL type is one of N QCL type(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL type out of the N QCL type(s), N being a positive integer not greater than the Q;

or, any of the Q candidate QCL relationships comprises a candidate reference signal and a QCL type, the first QCL relationship comprises a first candidate reference signal and a first QCL type, and the first antenna port is QCL with the first candidate reference signal; the first candidate reference signal is one of M candidate reference signal(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first candidate reference signal out of the M candidate reference signal(s), M being a positive integer not greater than the Q, and the first antenna port conforms to the first QCL type; the first QCL type is one of N QCL type(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL type out of the N QCL type(s), N being a positive integer not greater than the Q.

10. The second node according to claim 9 , wherein the third receiver receives second information; the second information and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set are used together to determine Q0 candidate QCL relationship(s) out of the Q candidate QCL relationships, and the first information is used to determine the first QCL relationship out of the Q0 candidate QCL relationship(s).

11. A method in a first node for wireless communications, comprising:

transmitting a first signaling; and

transmitting a first reference signal and a second signal through a first antenna port in a first time-frequency resource set; and

receiving second information;

wherein the first signaling is used to indicate the first time-frequency resource set, and the first signaling is used to indicate a number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set; the first reference signal is used to demodulate the second signal; the first antenna port conforms to a first QCL relationship, and the first QCL relationship is one of Q candidate QCL relationships; any of the Q candidate QCL relationships comprises at least one of a candidate reference signal or a QCL type; the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to indicate the first QCL relationship out of the Q candidate QCL relationships, Q being a positive integer greater than 1; wherein the second information and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set are used together to determine Q0 candidate QCL relationship(s) out of the Q candidate QCL relationships, and the first information is used to determine the first QCL relationship out of the Q0 candidate QCL relationship(s).

12. The method in a first node according to claim 11 , wherein any of the Q candidate QCL relationships comprises a candidate reference signal, the first QCL relationship comprises a first candidate reference signal, and the first antenna port is QCL with the first candidate reference signal; the first candidate reference signal is one of M candidate reference signal(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first candidate reference signal out of the M candidate reference signal(s), M being a positive integer not greater than the Q;

or, any of the Q candidate QCL relationships comprises a QCL type, the first QCL relationship comprises a first QCL type, and the first antenna port conforms to the first QCL type; the first QCL type is one of N QCL type(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL type out of the N QCL type(s), N being a positive integer not greater than the Q;

or, any of the Q candidate QCL relationships comprises a candidate reference signal and a QCL type, the first QCL relationship comprises a first candidate reference signal and a first QCL type, and the first antenna port is QCL with the first candidate reference signal; the first candidate reference signal is one of M candidate reference signal(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first candidate reference signal out of the M candidate reference signal(s), M being a positive integer not greater than the Q, and the first antenna port conforms to the first QCL type, the first QCL type is one of N QCL type(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL type out of the N QCL type(s), N being a positive integer not greater than the Q.

13. The method according to claim 12 , wherein the first signaling comprises first information, and the first information in the first signaling and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set are used together to determine the first QCL relationship out of the Q candidate QCL relationships;

or, the first signaling comprises first information, and the first information in the first signaling is used to determine the first QCL relationship out of the Q candidate QCL relationships; the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine whether the first information is disabled.

14. A method in a second node for wireless communications, comprising:

receiving a first signaling; and

receiving a first reference signal and a second signal in a first time-frequency resource set; and

receiving second information;

wherein the first signaling is used to determine the first time-frequency resource set, and the first signaling is used to determine a number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set; the first reference signal is used to demodulate the second signal; the first reference signal and the second signal is transmitted through a first antenna port, the first antenna port conforms to a first QCL relationship, and the first QCL relationship is one of Q candidate QCL relationships; any of the Q candidate QCL relationships comprises at least one of a candidate reference signal or a QCL type; the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL relationship out of the Q candidate QCL relationships, Q being a positive integer greater than 1; wherein the second information and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set are used together to determine Q0 candidate QCL relationship(s) out of the Q candidate QCL relationships, and the first information is used to determine the first QCL relationship out of the Q0 candidate QCL relationship(s).

15. The method according to claim 14 , wherein any of the Q candidate QCL relationships comprises a candidate reference signal, the first QCL relationship comprises a first candidate reference signal, and the first antenna port is QCL with the first candidate reference signal; the first candidate reference signal is one of M candidate reference signal(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first candidate reference signal out of the M candidate reference signal(s), M being a positive integer not greater than the Q;

or, any of the Q candidate QCL relationships comprises a QCL type, the first QCL relationship comprises a first QCL type, and the first antenna port conforms to the first QCL type; the first QCL type is one of N QCL type(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL type out of the N QCL type(s), N being a positive integer not greater than the Q;

or, any of the Q candidate QCL relationships comprises a candidate reference signal and a QCL type, the first QCL relationship comprises a first candidate reference signal and a first QCL type, and the first antenna port is QCL with the first candidate reference signal; the first candidate reference signal is one of M candidate reference signal(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first candidate reference signal out of the M candidate reference signal(s), M being a positive integer not greater than the Q, and the first antenna port conforms to the first QCL type, the first QCL type is one of N QCL type(s), and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine the first QCL type out of the N QCL type(s), N being a positive integer not greater than the Q.

16. The method according to claim 15 , wherein the first signaling comprises first information, and the first information in the first signaling and the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set are used together to determine the first QCL relationship out of the Q candidate QCL relationships;

or, the first signaling comprises first information, and the first information in the first signaling is used to determine the first QCL relationship out of the Q candidate QCL relationships; the number of time-frequency resource(s) used for the first reference signal in the first time-frequency resource set is used to determine whether the first information is disabled.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2024
From: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY CO., LTD.
To: BUNKER HILL TECHNOLOGIES LLC
Reel/Frame 069352/0528 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 8, 2023
From: LIU, JIN; ZHANG, XIAOBO
To: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
Reel/Frame 064515/0847 →
Continuity (2)
Continuation PCTCN2020129818 · Nov 18, 2020
Related Publication 20220330042A1 · Oct 13, 2022
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