Method and device used in wireless communication node

1. A method in a first node for wireless communication, comprising:

receiving K2 information block(s);

receiving K candidate radio signals; and

receiving a first radio signal, the first radio signal being associated to a first identifier;

wherein the K candidate radio signals are associated to K first-type identifiers respectively, and only K1 first-type identifiers among the K first-type identifiers are equal to the first identifier; the K1 first-type identifiers are associated to K1 candidate radio signals among the K candidate radio signals respectively; only the K1 candidate radio signals among the K candidate radio signals can be used for controlling a receiving power of the first radio signal; the K is a positive integer greater than 1, and the K1 is a positive integer greater than 1 and not greater than the K; each one of the K first-type identifier is an integer; and the K candidate radio signals and the first radio signal are transmitted by one same transmitter; only the K1 candidate radio signals among the K candidate radio signals can be used for controlling a receiving power of the first radio signal input to an ADC, or only the K1 candidate radio signals among the K candidate radio signals can be used for an AGC of the first radio signal, or only the receiving powers of the K1 candidate radio signals among the K candidate radio signals can be used for adjusting an amplitude of an amplifier for the first radio signal; the K2 information block(s) comprise(s) K2 first-type identifier(s) respectively, and the K2 is a positive integer; the K2 is 1 and the K2 first-type identifier is the first identifier; or, the K2 is greater than 1, and any one of the K first-type identifier(s) is equal to one of the K2 first-type identifier(s); the K candidate radio signals are scheduled for K terminals respectively, or the K candidate radio signals are data channels transmitted to the K terminals respectively; the K terminals comprise all terminals performing sidelink communication with a transmitter of the first radio signal; any one of the K2 information blocks comprises one first-type identifier and a positive integer number of second-type identifier(s); the K candidate radio signals comprise K second-type identifiers respectively, and the K second-type identifiers are used for indicating K terminals respectively; any one of the K second-type identifiers is indicated by one of the K2 information block(s); the K1 candidate radio signals are associated to K1 second-type identifiers respectively, the second identifier is one of the K1 second-type identifiers, and the first radio signal comprises the second identifier, the second identifier is used for uniquely determining the first node from the K terminals.

2. The method according to claim 1 , wherein each one of the K first-type identifiers is used for determining one antenna port group, and the antenna port group comprises a positive integer number of antenna port(s).

3. The method according to claim 1 , comprising:

transmitting a second radio signal;

wherein each one of the K2 information block(s) comprises power control relevant information, and the power control relevant information comprises at least one of an expected power and a pathloss compensation factor; the power control relevant information indicated by an information block comprising the first identifier among the K2 information block(s) is used for determining a transmitting power of the second radio signal.

4. The method according to claim 1 , wherein the K candidate radio signals and the first radio signal all indicate a same third-type identifier;

or, a transmitter of the K candidate radio signals transmits the K1 candidate radio signals among the K candidate radio signals employing a same transmitting power.

5. The method according to claim 1 , wherein K1 candidate pathlosses are respectively K1 pathlosses from the transmitter of the first radio signal to K1 terminals corresponding to the K1 candidate radio signals, and any two of the K1 candidate pathlosses have an absolute difference not greater than a given threshold.

6. A first node for wireless communication, comprising:

a first receiver, to receiver receives K2 information block(s); to receive K candidate radio signals; and

a second receiver, to receive a first radio signal, the first radio signal being associated to a first identifier;

wherein the K candidate radio signals are associated to K first-type identifiers respectively, and only K1 first-type identifiers among the K first-type identifiers are equal to the first identifier; the K1 first-type identifiers are associated to K1 candidate radio signals among the K candidate radio signals respectively; only the K1 candidate radio signals among the K candidate radio signals can be used for controlling a receiving power of the first radio signal; the K is a positive integer greater than 1, and the K1 is a positive integer greater than 1 and not greater than the K; each one of the K first-type identifiers is an integer; and the K candidate radio signals and the first radio signal are transmitted by one same transmitter; only the K1 candidate radio signals among the K candidate radio signals can be used for controlling a receiving power of the first radio signal input to an ADC, or only the K1 candidate radio signals among the K candidate radio signals can be used for an AGC of the first radio signal, or only the receiving powers of the K1 candidate radio signals among the K candidate radio signals can be used for adjusting an amplitude of an amplifier for the first radio signal; the K2 information block(s) comprise(s) K2 first-type identifier(s) respectively, and the K2 is a positive integer; the K2 is 1 and the K2 first-type identifier is the first identifier; or, the K2 is greater than 1, and any one of the K first-type identifier(s) is equal to one of the K2 first-type identifier(s); the K candidate radio signals are scheduled for K terminals respectively, or the K candidate radio signals are a data channels transmitted to the K terminals respectively; the K terminals comprise all terminals performing sidelink communication with a transmitter of the first radio signal; any one of the K2 information blocks comprises one first-type identifier and a positive integer number of second-type identifier(s); the K candidate radio signals comprises K second-type identifiers respectively, and the K second-type identifiers are used for indicating K terminals respectively; any one of the K second-type identifiers is indicated by one of the K2 information block(s); the K1 candidate radio signals are associated to K1 second-type identifiers respectively, the second identifier is one of the K1 second-type identifiers, and the first radio signal comprises the second identifier, the second identifier is used for uniquely determining the first node from the K terminals.

7. The first node according to claim 6 , wherein each one of the K first-type identifiers is used for determining one antenna port group, and the antenna port group comprises a positive integer number of antenna port(s).

8. The first node according to claim 6 , comprising:

a first transmitter, to transmit a second radio signal;

wherein each one of the K2 information block(s) comprises power control relevant information, and the power control relevant information comprises at least one of an expected power and a pathloss compensation factor; the power control relevant information indicated by an information block comprising the first identifier among the K2 information block(s) is used for determining a transmitting power of the second radio signal.

9. The first node according to claim 6 , wherein the K candidate radio signals and the first radio signal all indicate a same third-type identifier;

or, a transmitter of the K candidate radio signals transmits the K1 candidate radio signals among the K candidate radio signals employing a same transmitting power.

10. The first node according to claim 6 , wherein K1 candidate pathlosses are respectively K1 pathlosses from the transmitter of the first radio signal to K1 terminals corresponding to the K1 candidate radio signals, and any two of the K1 candidate pathlosses have an absolute difference not greater than a given threshold.

11. A second node for wireless communication, comprising:

a second transmitter, to transmits K2 information block(s); to transmit K candidate radio signals; and

a third transmitter, to transmit a first radio signal, the first radio signal being associated to a first identifier;

wherein the K candidate radio signals are associated to K first-type identifiers respectively, and only K1 first-type identifiers among the K first-type identifiers are equal to the first identifier; the K1 first-type identifiers are associated to K1 candidate radio signals among the K candidate radio signals respectively; only the K1 candidate radio signals among the K candidate radio signals can be used for controlling a receiving power of the first radio signal; the K is a positive integer greater than 1, and the K1 is a positive integer greater than 1 and not greater than the K; and each one of the K first-type identifiers is an integer; only the K1 candidate radio signals among the K candidate radio signals can be used for controlling a receiving power of the first radio signal input to an ADC, or only the K1 candidate radio signals among the K candidate radio signals can be used for an AGC of the first radio signal, or only the receiving powers of the K1 candidate radio signals among the K candidate radio signals can be used for adjusting an amplitude of an amplifier for the first radio signal; the K2 information block(s) comprise(s) K2 first-type identifier(s) respectively, and the K2 is a positive integer; the K2 is 1 and the K2 first-type identifier is the first identifier; or, the K2 is greater than 1, and any one of the K first-type identifier(s) is equal to one of the K2 first-type identifier(s); the K candidate radio signals are scheduled for K terminals respectively, or the K candidate radio signals are a data channels transmitted to the K terminals respectively; the K terminals comprise all terminals performing sidelink communication with the second node; any one of the K2 information blocks comprises one first-type identifier and a positive integer number of second-type identifier(s); the K candidate radio signals comprise K second-type identifiers respectively, and the K second-type identifiers are used for indicating K terminals respectively; any one of the K second-type identifiers is indicated by one of the K2 information block(s); the K1 candidate radio signals are associated to K1 second-type identifiers respectively, the second identifier is one of the K1 second-type identifiers, and the first radio signal comprises the second identifier, the second identifier is used for uniquely determining the first node from the K terminals.

12. The second node according to claim 11 , wherein each one of the K first-type identifiers is used for determining one antenna port group, and the antenna port group comprises a positive integer number of antenna port(s).

13. The second node according to claim 11 , comprising:

a third receiver, to receive a second radio signal;

wherein each one of the K2 information block(s) comprises power control relevant information, and the power control relevant information comprises at least one of an expected power and a pathloss compensation factor; the power control relevant information indicated by an information block comprising the first identifier among the K2 information block(s) is used for determining a transmitting power of the second radio signal.

14. The second node according to claim 11 , wherein the K candidate radio signals and the first radio signal all indicate a same third-type identifier;

or, the second node transmits the K1 candidate radio signals among the K candidate radio signals employing a same transmitting power.