Method and device in base station used for wireless communication
View Patent ↗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.
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.