IP Library Granted Patent US 11,374,722
Granted Patent B2
US 11,374,722 · App. 17/010,830 · Granted Jun 28, 2022

Method and device used in UE and base station for wireless communication

Inventors: Qi Jiang (Shanghai, CN); Xiaobo Zhang (Shanghai, CN)
Assignee: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
H04L5/0092H04L5/001H04L5/0094H04W74/08H04W74/0808
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Quick Facts
Patent No.
US 11,374,722
App. No.
17/010,830
Granted
Jun 28, 2022
Kind
B2
Abstract

The disclosure provides a method and a device in a User Equipment (UE) and a base station for wireless communication. The UE receives a first signaling in a first time-frequency resource, and receives a first radio signal in a second time-frequency resource; the first signaling is used for indicating K1 target subband(s), the K1 target subband(s) comprise(s) K1 target time-frequency resource(s) respectively, and the second time-frequency resource is one of the K1 target time-frequency resource(s); the first signaling and the first radio signal are both specific to the UE; time domain resources occupied by the first time-frequency resource belong to a first time window. Through the design of the K1 target subband(s), the disclosure guarantees the transmission of important information such as system information and subband indicator signaling on unlicensed spectrum, thereby improving overall performances of the system.

Claims (56)

1. A method in a User Equipment (UE) for wireless communication, comprising:

receiving a first signaling in a first time-frequency resource; and

receiving a first radio signal in a second time-frequency resource;

receiving a third signaling in a fourth time-frequency resource; and

operating a fourth radio signal;

wherein the first signaling is used for indicating K1 target subband(s), the K1 target subband(s) comprise(s) K1 target time-frequency resource(s) respectively, and the second time-frequency resource is one of the K1 target time-frequency resource(s); frequency domain resources occupied by the first time-frequency resource belong to a first subband, and any one of the K1 target subband(s) is orthogonal to the first subband; the first signaling is a physical layer signaling other than the UE-specific physical layer signalings; the first radio signal is a radio signal other than the UE-specific radio signals; time domain resources occupied by the first time-frequency resource are a first time unit, the first time unit belongs to a first time window, and a duration of the first time window in time domain is a Max Channel Occupy Time (MCOT) for the first subband; and the K1 is a positive integer; frequency domain resources occupied by the fourth time-frequency resource belong to a fourth subband, and the fourth subband is one of K2 candidate subband(s); the first radio signal is used for determining the K2 candidate subband(s); the third signaling comprises first configuration information, and the first configuration is applicable to the fourth radio signal; the first configuration information comprises at least one of occupied frequency domain resources, occupied time domain resources, a Modulation and Coding State (MCS) and a HARQ process number; the operating is receiving or the operating is transmitting; and the K2 is a positive integer.

2. The method according to claim 1 , comprising:

receiving a second signaling in a third time-frequency resource;

wherein the second signaling is used for indicating the first time-frequency resource, and the second signaling is transmitted in the first subband; and time domain resources occupied by the third time-frequency resource belong to the first time window.

3. The method according to claim 1 , wherein a first identifier is the UE specific, and the first identifier is used for determining the fourth subband from the K2 candidate subband(s);

or, comprising:

receiving second information;

wherein the second information is used for indicating a second-type subband set, and the second-type subband set comprises the K2 candidate subband(s); and the second information is transmitted through an air interface.

4. The method according to claim 1 , comprising:

receiving first information;

wherein the first information is used for indicating a first-type subband set, and the first-type subband set comprises the first subband and the K1 target subband(s); and the first information is transmitted through an air interface;

or, comprising:

receiving a first-type information group;

wherein the first-type information group is used for configuring the first subband and a second subband; frequency domain resources occupied by the second time-frequency resource belong to the second subband; and the first-type information group comprises at least one of relevant information to a subcarrier spacing, relevant information to a cyclic prefix or relevant information to a bandwidth.

5. A method in a base station for wireless communication, comprising:

transmitting a first signaling in a first time-frequency resource; and

transmitting a first radio signal in a second time-frequency resource;

transmitting a third signaling in a fourth time-frequency resource; and

processing a fourth radio signal;

wherein the first signaling is used for indicating K1 target subband(s), the K1 target subband(s) comprise(s) K1 target time-frequency resource(s) respectively, and the second time-frequency resource is one of the K1 target time-frequency resource(s); frequency domain resources occupied by the first time-frequency resource belong to a first subband, and any one of the K1 target subband(s) is orthogonal to the first subband; a receiver of the first signaling comprises a first terminal, and the first signaling is a physical layer signaling other than the first terminal-specific physical layer signalings; the first radio signal is a radio signal other than the first terminal-specific radio signals; time domain resources occupied by the first time-frequency resource are a first time unit, the first time unit belongs to a first time window, and a duration of the first time window in time domain is an MCOT for the first subband; and the K1 is a positive integer; frequency domain resources occupied by the fourth time-frequency resource belong to a fourth subband, and the fourth subband is one of K2 candidate subband(s); the first radio signal is used for determining the K2 candidate subband(s); the third signaling comprises first configuration information, and the first configuration is applicable to the fourth radio signal; the first configuration information comprises at least one of occupied frequency domain resources, occupied time domain resources, an MCS and a HARQ process number; the processing is transmitting or the processing is receiving; and the K2 is a positive integer.

6. The method according to claim 5 , comprising:

transmitting a second signaling in a third time-frequency resource;

wherein the second signaling is used for indicating the first time-frequency resource, and the second signaling is transmitted in the first subband; and time domain resources occupied by the third time-frequency resource belong to the first time window.

7. The method according to claim 5 , wherein a first identifier is the first terminal specific, and the first identifier is used for determining the fourth subband from the K2 candidate subband(s);

or, comprising:

transmitting second information, and performing a second energy detection on K4 second-type subband(s);

wherein the second information is used for indicating a second-type subband set, and the second-type subband set comprises the K2 candidate subband(s); the second information is transmitted through an air interface; and the second energy detection is used for determining the K2 candidate subband(s) from the K4 second-type subband(s), and the second-type subband set comprises the K4 second-type subband(s).

8. The method according to claim 5 , comprising:

transmitting first information, and performing a first energy detection on K3 first-type subband(s);

wherein the first information is used for indicating a first-type subband set, and the first-type subband set comprises the first subband and the K1 target subband(s); the first information is transmitted through an air interface; and the first energy detection is used for determining the K1 target subband(s) from the K3 first-type subband(s), and the first-type subband set comprises the K3 first-type subband(s);

or, comprising:

transmitting a first-type information group;

wherein the first-type information group is used for configuring the first subband and a second subband; frequency domain resources occupied by the second time-frequency resource belong to the second subband; and the first-type information group comprises at least one of relevant information to a subcarrier spacing, relevant information to a cyclic prefix or relevant information to a bandwidth.

9. A UE for wireless communication, comprising:

a first receiver, to receive a first signaling in a first time-frequency resource; and

a first transceiver, to receive a first radio signal in a second time-frequency resource, to receive a third signaling in a fourth time-frequency resource, and to operate a fourth radio signal;

wherein the first signaling is used for indicating K1 target subband(s), the K1 target subband(s) comprise(s) K1 target time-frequency resource(s) respectively, and the second time-frequency resource is one of the K1 target time-frequency resource(s); frequency domain resources occupied by the first time-frequency resource belong to a first subband, and any one of the K1 target subband(s) is orthogonal to the first subband; the first signaling is a physical layer signaling other than the UE-specific physical layer signalings; the first radio signal is a radio signal other than the UE-specific radio signals; time domain resources occupied by the first time-frequency resource are a first time unit, the first time unit belongs to a first time window, and a duration of the first time window in time domain is an MCOT for the first subband; and the K1 is a positive integer; frequency domain resources occupied by the fourth time-frequency resource belong to a fourth subband, and the fourth subband is one of K2 candidate subband(s); the first radio signal is used for determining the K2 candidate subband(s); the third signaling comprises first configuration information, and the first configuration is applicable to the fourth radio signal; the first configuration information comprises at least one of occupied frequency domain resources, occupied time domain resources, an MCS and a HARQ process number; the operate is receive or the operate is transmit and the K2 is a positive integer.

10. The UE according to claim 9 , wherein the first receiver receives a second signaling in a third time-frequency resource; the second signaling is used for indicating the first time-frequency resource, and the second signaling is transmitted in the first subband; and time domain resources occupied by the third time-frequency resource belong to the first time window.

11. The UE according to claim 9 , wherein a first identifier is the UE specific, and the first identifier is used for determining the fourth subband from the K2 candidate subband(s);

or, the first receiver receives second information, the second information is used for indicating a second-type subband set, and the second-type subband set comprises the K2 candidate subband(s); and the second information is transmitted through an air interface.

12. The UE according to claim 9 , wherein the first receiver receives first information; the first information is used for indicating a first-type subband set, and the first-type subband set comprises the first subband and the K1 target subband(s); and the first information is transmitted through an air interface;

or, the first receiver receives a first-type information group; the first-type information group is used for configuring the first subband and a second subband; frequency domain resources occupied by the second time-frequency resource belong to the second subband; and the first-type information group comprises at least one of relevant information to a subcarrier spacing, relevant information to a cyclic prefix or relevant information to a bandwidth.

13. A base station for wireless communication, comprising:

a second transceiver, to transmit a first signaling in a first time-frequency resource; and

a third transceiver, to transmit a first radio signal in a second time-frequency resource, to transmit a third signaling in a fourth time-frequency resource, and to process a fourth radio signal;

wherein the first signaling is used for indicating K1 target subband(s), the K1 target subband(s) comprise(s) K1 target time-frequency resource(s) respectively, and the second time-frequency resource is one of the K1 target time-frequency resource(s); frequency domain resources occupied by the first time-frequency resource belong to a first subband, and any one of the K1 target subband(s) is orthogonal to the first subband; a receiver of the first signaling comprises a first terminal, and the first signaling is a physical layer signaling other than the first terminal-specific physical layer signalings; the first radio signal is a radio signal other than the first terminal-specific radio signals; time domain resources occupied by the first time-frequency resource are a first time unit, the first time unit belongs to a first time window, and a duration of the first time window in time domain is an MCOT for the first subband; and the K1 is a positive integer; frequency domain resources occupied by the fourth time-frequency resource belong to a fourth subband, and the fourth subband is one of K2 candidate subband(s); the first radio signal is used for determining the K2 candidate subband(s); the third signaling comprises first configuration information, and the first configuration is applicable to the fourth radio signal; the first configuration information comprises at least one of occupied frequency domain resources, occupied time domain resources, an MCS and a HARQ process number; the process is transmit or the process is receive; and the K2 is a positive integer.

14. The base station according to claim 13 , wherein the second transceiver transmits a second signaling in a third time-frequency resource; the second signaling is used for indicating the first time-frequency resource, and the second signaling is transmitted in the first subband; and time domain resources occupied by the third time-frequency resource belong to the first time window.

15. The base station according to claim 13 , wherein a first identifier is the first terminal specific, and the first identifier is used for determining the fourth subband from the K2 candidate subband(s);

or, the second transceiver transmits second information, and the second transceiver performs a second energy detection on K4 second-type subband(s); the second information is used for indicating a second-type subband set, and the second-type subband set comprises the K2 candidate subband(s); the second information is transmitted through an air interface; and the second energy detection is used for determining the K2 candidate subband(s) from the K4 second-type subband(s), and the second-type subband set comprises the K4 second-type subband(s).

16. The base station according to claim 13 , wherein the second transceiver transmits first information, and the second transceiver performs a first energy detection on K3 first-type subband(s); the first information is used for indicating a first-type subband set, and the first-type subband set comprises the first subband and the K1 target subband(s); the first information is transmitted through an air interface; and the first energy detection is used for determining the K1 target subband(s) from the K3 first-type subband(s), and the first-type subband set comprises the K3 first-type subband(s);

or, the second transceiver transmits a first-type information group; the first-type information group is used for configuring the first subband and a second subband; frequency domain resources occupied by the second time-frequency resource belong to the second subband; and the first-type information group comprises at least one of relevant information to a subcarrier spacing, relevant information to a cyclic prefix or relevant information to a bandwidth.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 28, 2025
From: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
To: APOGEE NETWORKS, LLC
Reel/Frame 071083/0872 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 17, 2021
From: JIANG, QI; ZHANG, XIAOBO
To: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
Reel/Frame 055613/0868 →
Priority Claims (1)
CN 201810240672.8 · Mar 22, 2018 · national
Continuity (2)
Continuation PCTCN2019078019 · Mar 13, 2019
Related Publication 20200403762A1 · Dec 24, 2020