Method and device in nodes used for wireless communication

1. A first node used for wireless communications, comprising:

a first receiver, receiving a first radio signal and a second radio signal;

a first processor, determining a transmitting power of first control information in a first time window as a first power value and a transmitting power of second control information in a second time window as a second power value; and

a first transmitter, transmitting first control information with the first power value in the first time window;

wherein the first control information is associated with the first radio signal, and the second control information is associated with the second radio signal; the first radio signal is unicast, while the second radio signal is groupcast; the first power value is unrelated to the second power value, the second power value is relevant to whether the first time window overlaps with the second time window; a physical layer channel format occupied by the first control information is the same as a physical layer channel format occupied by the second control information; when the first time window overlaps with the second time window, the first transmitter drops transmitting second control information in the second time window, the second power value is 0; when the first time window does not overlap with the second time window, the first transmitter transmits second control information with the second power value in the second time window, the second power value is not used to determine the first power value; the physical layer channel format occupied by the first control information and the physical layer channel format occupied by the second control information are both Physical Sidelink Feedback Channels; the first control information comprises a HARQ-ACK of the first radio signal and the second control information comprises a HARQ-ACK of the second radio signal; the first radio signal is a Physical Sidelink Shared Channel (PSSCH) based on unicast transmission; the second radio signal is a PSSCH based on groupcast transmission.

2. The first node according to claim 1 , wherein the first transmitter transmits the second control information with the second power value in the second time window; when the first time window overlaps with the second time window, a difference between a first remaining power value and the first power value is used to determine the second power value; when the first time window does not overlap with the second time window, the second power value is unrelated to the first power value.

3. The first node according to claim 1 , comprising:

the first receiver, receiving a first signaling and a second signaling;

wherein a first signaling is used to schedule the first radio signal, and the second signaling is used to schedule the second radio signal, the first signaling is identified by a first identity, and the second signaling is identified by a second identity, the first identity and the second identity respectively indicate unicast and groupcast.

4. The first node according to claim 1 , wherein the first transmitter transmits a target radio signal with a target power value in a target time window; the first radio signal and the second radio signal are transmitted in sidelink, while the target radio signal is transmitted in uplink; the first power value is relevant to whether the first time window overlaps with the target time window, the target power value is unrelated to the first power value.

5. The first node according to claim 1 , wherein any radio signal of all radio signals other than the first control information and the second control information is of a higher priority than the first control information and the second control information.

6. The first node according to claim 1 , wherein the first control information is used to determine whether the first radio signal is correctly decoded, the second control information is used to determine whether the second radio signal is correctly decoded.

7. The first node according to claim 3 , wherein the first signaling is used to determine a position of the first time window in time domain; the second signaling is used to determine a position of the second time window in time domain.

8. A second node used for wireless communications, comprising:

a second transmitter, transmitting a first radio signal; and

a second receiver, receiving first control information in a first time window;

wherein the first control information is associated with the first radio signal, the first radio signal is unicast; a transmitting power of the first control information in the first time window is a first power value; a transmitter of the first control information determines a transmitting power of second control information in a second time window as a second power value, the second control information is associated with a second radio signal, the second radio signal is groupcast; the first power value is unrelated to the second power value, the second power value is relevant to whether the first time window overlaps with the second time window; a physical layer channel format occupied by the first control information is the same as a physical layer channel format occupied by the second control information when the first time window overlaps with the second time window, a transmitter of the first control information drops transmitting second control information in the second time window, the second power value is 0; when the first time window does not overlap with the second time window, a transmitter of the first control information transmits second control information with the second power value in the second time window, the second power value is not used to determine the first power value; the physical layer channel format occupied by the first control information and the physical layer channel format occupied by the second control information are both Physical Sidelink Feedback Channels; the first control information comprises a HARQ-ACK of the first radio signal and the second control information comprises a HARQ-ACK of the second radio signal; the first radio signal is a Physical Sidelink Shared Channel (PSSCH) based on unicast transmission; the second radio signal is a PSSCH based on groupcast transmission.

9. The second node according to claim 8 , wherein any radio signal of all radio signals other than the first control information and the second control information is of a higher priority than the first control information and the second control information.

10. The second node according to claim 8 , comprising:

the second transmitter, transmitting a first signaling;

wherein a first signaling is used to schedule the first radio signal, the first signaling is identified by a first identity, the first identity indicate unicast.

11. The second node according to claim 8 , wherein the first control information is used to determine whether the first radio signal is correctly decoded, the second control information is used to determine whether the second radio signal is correctly decoded.

12. The second node according to claim 10 , wherein the first signaling is used to determine a position of the first time window in time domain.

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

receiving a first radio signal and a second radio signal;

determining a transmitting power of first control information in a first time window as a first power value and a transmitting power of second control information in a second time window as a second power value; and

transmitting first control information with the first power value in the first time window;

when the first time window overlaps with the second time window, drops transmitting second control information in the second time window, the second power value is 0; when the first time window does not overlap with the second time window, transmits second control information with the second power value in the second time window, the second power value is not used to determine the first power value;

wherein the first control information is associated with the first radio signal, and the second control information is associated with the second radio signal; the first radio signal is unicast, while the second radio signal is groupcast; the first power value is unrelated to the second power value, the second power value is relevant to whether the first time window overlaps with the second time window; a physical layer channel format occupied by the first control information is the same as a physical layer channel format occupied by the second control information; the physical layer channel format occupied by the first control information and the physical layer channel format occupied by the second control information are both Physical Sidelink Feedback Channels; the first control information comprises a HARQ-ACK of the first radio signal and the second control information comprises a HARQ-ACK of the second radio signal; the first radio signal is a Physical Sidelink Shared Channel (PSSCH) based on unicast transmission; the second radio signal is a PSSCH based on groupcast transmission.

14. The method in the first node according to claim 13 , comprising:

transmitting the second control information with the second power value in the second time window;

wherein when the first time window overlaps with the second time window, a difference between a first remaining power value and the first power value is used to determine the second power value; when the first time window does not overlap with the second time window, the second power value is unrelated to the first power value.

15. The method in the first node according to claim 13 , comprising:

receiving a first signaling and a second signaling;

wherein a first signaling is used to schedule the first radio signal, and the second signaling is used to schedule the second radio signal, the first signaling is identified by a first identity, and the second signaling is identified by a second identity, the first identity and the second identity respectively indicate unicast and groupcast.

16. The method in the first node according to claim 13 , comprising:

transmitting a target radio signal with a target power value in a target time window;

wherein the first radio signal and the second radio signal are transmitted in sidelink, while the target radio signal is transmitted in uplink; the first power value is relevant to whether the first time window overlaps with the target time window, the target power value is unrelated to the first power value.

17. The method in the first node according to claim 13 , wherein any radio signal of all radio signals other than the first control information and the second control information is of a higher priority than the first control information and the second control information.

18. The method in the first node according to claim 13 , wherein the first control information is used to determine whether the first radio signal is correctly decoded, the second control information is used to determine whether the second radio signal is correctly decoded.

19. The method in the first node according to claim 15 , wherein the first signaling is used to determine a position of the first time window in time domain; the second signaling is used to determine a position of the second time window in time domain.

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

transmitting a first radio signal; and

receiving first control information in a first time window;

wherein the first control information is associated with the first radio signal, the first radio signal is unicast; a transmitting power of the first control information in the first time window is a first power value; a transmitter of the first control information determines a transmitting power of second control information in a second time window as a second power value, the second control information is associated with the second radio signal, and the second radio signal is groupcast; the first power value is unrelated to the second power value, the second power value is relevant to whether the first time window overlaps with the second time window; a physical layer channel format occupied by the first control information is the same as a physical layer channel format occupied by the second control information when the first time window overlaps with the second time window, a transmitter of the first control information drops transmitting second control information in the second time window, the second power value is 0; when the first time window does not overlap with the second time window, a transmitter of the first control information transmits second control information with the second power value in the second time window, the second power value is not used to determine the first power value; the physical layer channel format occupied by the first control information and the physical layer channel format occupied by the second control information are both Physical Sidelink Feedback Channels; the first control information comprises a HARQ-ACK of the first radio signal and the second control information comprises a HARQ-ACK of the second radio signal; the first radio signal is a Physical Sidelink Shared Channel (PSSCH) based on unicast transmission; the second radio signal is a PSSCH based on groupcast transmission.