IP Library Granted Patent US 10,757,588
Granted Patent B2
US 10,757,588 · App. 16/583,292 · Granted Aug 25, 2020

Method and device in base station used for wireless communication

Inventors: KeYing Wu (Shanghai, CN); XiaoBo Zhang (Shanghai, CN); Lin Yang (Shanghai, CN)
Assignee: SHANGHAI LANGBO COMMUNCATION TECHNOLOGY COMPANY LIMITED
H04W24/02H04W16/14H04W74/0808
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Quick Facts
Patent No.
US 10,757,588
App. No.
16/583,292
Granted
Aug 25, 2020
Kind
B2
Abstract

The present disclosure provides a method and a device in a base station used for wireless communication. The base station transmits M 1 first-type reference signals; receives M 2 second-type radio signals in first time-domain resources, with any of the M 2 second-type radio signals being associated with one of the M 1 first-type reference signals; and transmits a first radio signal in the first time-domain resources. If an antenna port transmitting the first radio signal is associated with at least one of the M 2 second-type radio signals, first-type channel monitoring is adopted targeting transmission of the first radio signal; otherwise, second-type channel monitoring is adopted targeting transmission of the first radio signal. The above method allows the base station to share a COT acquired by a UE in unlicensed spectrums so as to increase channel access efficiency, and at the same time avoids interference with other potential ongoing communications.

Claims (42)

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

transmitting M 1 first-type reference signals, with the M 1 being a positive integer;

receiving M 2 second-type radio signals in first time-domain resources, with any of the M 2 second-type radio signals being associated with one of the M 1 first-type reference signals, and with the M 2 being a positive integer; and

transmitting a first radio signal in the first time-domain resources;

wherein determination of which one of first-type channel monitoring or second-type channel monitoring is adopted for targeting transmission of the first radio signal is as follows: in instances in which an antenna port transmitting the first radio signal is associated with at least one of the M 2 second-type radio signals, the first-type channel monitoring is adopted for targeting transmission of the first radio signal; and in instances in which any antenna port transmitting the first radio signal is not associated with any of the M 2 second-type radio signals, the second-type channel monitoring is adopted for targeting transmission of the first radio signal.

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

performing the first-type channel monitoring;

wherein the antenna port transmitting the first radio signal is associated with at least one of the M 2 second-type radio signals.

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

performing the second-type channel monitoring;

wherein the antenna port transmitting the first radio signal is not associated with any of the M 2 second-type radio signals.

4. The method according to claim 1 , wherein a probability of transmitting the first radio signal in the first time-domain resources when the first-type channel monitoring is adopted is larger than a probability of transmitting the first radio signal in the first time-domain resources when the second-type channel monitoring is adopted.

5. The method according to claim 1 , wherein a transmission power of one of the M 2 second-type radio signals is related to one of the M 1 first-type reference signals.

6. The method according to claim 1 , wherein a spatial domain transmission filter used for a transmission of one of the M 2 second-type radio signals is related to one of the M 1 first-type reference signals.

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

transmitting first information;

wherein the first information is used for determining Q time windows, with time-domain resources occupied by the M 2 second-type radio signals belonging to the Q time windows; and the Q is a positive integer.

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

transmitting a first signaling;

wherein the first signaling indicates frequency-domain resources occupied by the M 2 second-type radio signals.

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

transmitting N 1 first-type reference signals;

receiving first uplink information;

wherein measurements targeting the N 1 first-type reference signals are used for generating the first uplink information; and the first uplink information is used for determining the M 1 first-type reference signals; and the N 1 is a positive integer.

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

transmitting N 2 first-type reference signals;

receiving second uplink information;

wherein measurements targeting the N 2 first-type reference signals are used for generating the second uplink information; and the second uplink information is used for determining a first reference signal, with the antenna port transmitting the first radio signal being associated with the first reference signal; and the N 2 is a positive integer.

11. A base station for wireless communication, comprising:

a first transmitter, to transmit M 1 first-type reference signals, with the M 1 being a positive integer;

a first receiver, to receive M 2 second-type radio signals in first time-domain resources, with any of the M 2 second-type radio signals being associated with one of the M 1 first-type reference signals, and with the M 2 being a positive integer; and

a second transmitter, to transmit a first radio signal in the first time-domain resources;

wherein determination of which one of first-type channel monitoring or second-type channel monitoring is adopted for targeting transmission of the first radio signal is as follows: in instances in which an antenna port transmitting the first radio signal is associated with at least one of the M 2 second-type radio signals, the first-type channel monitoring is adopted for targeting transmission of the first radio signal; and in instances in which any antenna port transmitting the first radio signal is not associated with any of the M 2 second-type radio signals, the second-type channel monitoring is adopted for targeting transmission of the first radio signal.

12. The base station according to claim 11 , wherein the first receiver further performs the first-type channel monitoring; wherein the antenna port transmitting the first radio signal is associated with at least one of the M 2 second-type radio signals.

13. The base station according to claim 11 , wherein the first receiver further performs the second-type channel monitoring; wherein the antenna port transmitting the first radio signal is not associated with any of the M 2 second-type radio signals.

14. The method according to claim 11 , wherein a probability of transmitting the first radio signal in the first time-domain resources when the first-type channel monitoring is adopted is larger than a probability of transmitting the first radio signal in the first time-domain resources when the second-type channel monitoring is adopted.

15. The base station according to claim 11 , wherein a transmission power of one of the M 2 second-type radio signals is related to one of the M 1 first-type reference signals.

16. The base station according to claim 11 , wherein a spatial domain transmission filter used for a transmission of one of the M 2 second-type radio signals is related to one of the M 1 first-type reference signals.

17. The base station according to claim 11 , wherein the first transmitter further transmits first information; wherein the first information is used for determining Q time windows, with time-domain resources occupied by the M 2 second-type radio signals belonging to the Q time windows; and the Q is a positive integer.

18. The base station according to claim 11 , wherein the first transmitter further transmits a first signaling; wherein the first signaling indicates frequency-domain resources occupied by the M 2 second-type radio signals.

19. The base station according to claim 11 , wherein the first transmitter further transmits N 1 first-type reference signals and the first receiver further receives first uplink information; wherein measurements targeting the N 1 first-type reference signals are used for generating the first uplink information; and the first uplink information is used for determining the M 1 first-type reference signals; and the N 1 is a positive integer.

20. The base station according to claim 11 , wherein the first transmitter further transmits N 2 first-type reference signals and the first receiver further receives second uplink information; wherein measurements targeting the N 2 first-type reference signals are used for generating the second uplink information; and the second uplink information is used for determining a first reference signal, with the antenna port transmitting the first radio signal being associated with the first reference signal; and the N 2 is a positive integer.

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 Sep 26, 2019
From: WU, KEYING; ZHANG, XIAOBO; YANG, LIN
To: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
Reel/Frame 050493/0375 →
Priority Claims (1)
CN 2018 1 1139214 · Sep 28, 2018 · national
Continuity (1)
Related Publication 20200107203A1 · Apr 2, 2020