METHOD AND DEVICE IN NODES USED FOR WIRELESS COMMUNICATION

1 . A first node for wireless communications, comprising:

a first receiver, receiving a first information group; receiving a first reference signal group; and

a first transmitter, when a first condition is satisfied, transmitting a first signal in a first radio resource group;

wherein the first information group is used to indicate the first reference signal group, and a measurement performed on the first reference signal group is used to judge whether the first condition is satisfied; whether the first condition is satisfied is used to determine whether the first signal is transmitted; the first signal is used to determine a second reference signal, and the second reference signal is one of M reference signals, M being a positive integer greater than 1; the first condition comprises that a value of a first counter is not less than a first threshold; a first reference signal is used to determine a spatial-domain relation of the first radio resource group; whether the first reference signal and the second reference signal are QCL is related to whether the second reference signal belongs to a first reference signal subset or belongs to a second reference signal subset; when the second reference signal belongs to the first reference signal subset, the first reference signal and the second reference signal are QCL; when the second reference signal belongs to the second reference signal subset, the first reference signal and the second reference signal are not QCL; the first threshold is a positive integer, and the first reference signal subset and the second reference signal subset are respectively subsets of the M reference signals; the first information group comprises a positive integer number of information block(s).

2 . The first node according to claim 1 , wherein the first radio resource group comprises a first radio resource block and a second radio resource block, the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal is transmitted in the first radio resource block, the second sub-signal is transmitted in the second radio resource block, the second sub-signal carries a first information block, and the first information block is used to indicate the second reference signal.

3 . The first node according to claim 1 , wherein when the second reference signal belongs to the second reference signal subset, the first reference signal belongs to the first reference signal subset, or the first reference signal and a reference signal in the first reference signal subset are QCL.

4 . The first node according to claim 1 , wherein when the first condition is satisfied and the second reference signal belongs to the second reference signal subset, the first transmitter transmits a second signal in a second radio resource group; wherein the second signal is used to determine the second reference signal, a third reference signal is used to determine a spatial-domain relation of the second radio resource group, and the second reference signal and the third reference signal are QCL;

or, the first receiver monitors a response for the first signal in a first time window; when both the first condition and a second condition are satisfied and the second reference signal belongs to the second reference signal subset, the first transmitter transmits a second signal in a second radio resource group; wherein time-domain resources occupied by the first signal are used to determine the first time window, the first time window is not later than a start time for transmitting the second signal, the second signal is used to determine the second reference signal, a third reference signal is used to determine a spatial-domain relation of the second radio resource group, and the second reference signal and the third reference signal are QCL; the second condition comprises: not detecting the response for the first signal in the first time window.

5 . The first node according to claim 1 , wherein the first reference signal subset corresponds to a first index, the second reference signal subset corresponds to a second index, and the first index and the second index are two different non-negative integers.

6 . The first node according to claim 5 , wherein the first index is used to indicate a first cell, the second index is used to indicate a second cell, and the first cell is different from the second cell; or, a name of the first index comprises coreset, and a name of the second index comprises coreset.

7 . A second node for wireless communications, comprising:

a second transmitter, transmitting a first information group; transmitting a first reference signal sub-group; and

a second receiver, monitoring a first signal in a first radio resource group;

wherein the first information group is used to indicate a first reference signal group, and any reference signal in the first reference signal sub-group belongs to the first reference signal group; a measurement performed on the first reference signal group is used to judge whether a first condition is satisfied; whether the first condition is satisfied is used to determine whether the first signal is transmitted; the first signal is used to determine a second reference signal, and the second reference signal is one of M reference signals, M being a positive integer greater than 1; the first condition comprises that a value of a first counter is not less than a first threshold; a first reference signal is used to determine a spatial-domain relation of the first radio resource group; whether the first reference signal and the second reference signal are QCL is related to whether the second reference signal belongs to a first reference signal subset or belongs to a second reference signal subset; when the second reference signal belongs to the first reference signal subset, the first reference signal and the second reference signal are QCL; when the second reference signal belongs to the second reference signal subset, the first reference signal and the second reference signal are not QCL; the first threshold is a positive integer, and the first reference signal subset and the second reference signal subset are respectively subsets of the M reference signals; the first information group comprises a positive integer number of information block(s), the first reference signal group comprises a positive integer number of reference signal(s), and the first reference signal sub-group comprises a positive integer number of reference signal(s).

8 . The second node according to claim 7 , wherein the first radio resource group comprises a first radio resource block and a second radio resource block, the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal is transmitted in the first radio resource block, the second sub-signal is transmitted in the second radio resource block, the second sub-signal carries a first information block, and the first information block is used to indicate the second reference signal.

9 . The second node according to claim 7 , wherein when the second reference signal belongs to the second reference signal subset, the first reference signal belongs to the first reference signal subset, or the first reference signal and a reference signal in the first reference signal subset are QCL.

10 . The second node according to claim 7 , wherein the first reference signal subset corresponds to a first index, the second reference signal subset corresponds to a second index, and the first index and the second index are two different non-negative integers;

or, the first reference signal subset corresponds to a first index, the second reference signal subset corresponds to a second index, and the first index and the second index are two different non-negative integers; the first index is used to indicate a first cell, the second index is used to indicate a second cell, the first cell is different from the second cell, or a name of the first index comprises coreset, and a name of the second index comprises coreset.

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

receiving a first information group;

receiving a first reference signal group; and

when a first condition is satisfied, transmitting a first signal in a first radio resource group;

wherein the first information group is used to indicate the first reference signal group, and a measurement performed on the first reference signal group is used to judge whether the first condition is satisfied; whether the first condition is satisfied is used to determine whether the first signal is transmitted; the first signal is used to determine a second reference signal, and the second reference signal is one of M reference signals, M being a positive integer greater than 1; the first condition comprises that a value of a first counter is not less than a first threshold; a first reference signal is used to determine a spatial-domain relation of the first radio resource group; whether the first reference signal and the second reference signal are QCL is related to whether the second reference signal belongs to a first reference signal subset or belongs to a second reference signal subset; when the second reference signal belongs to the first reference signal subset, the first reference signal and the second reference signal are QCL; when the second reference signal belongs to the second reference signal subset, the first reference signal and the second reference signal are not QCL; the first threshold is a positive integer, and the first reference signal subset and the second reference signal subset are respectively subsets of the M reference signals; the first information group comprises a positive integer number of information block(s).

12 . The method in a first node according to claim 11 , wherein the first radio resource group comprises a first radio resource block and a second radio resource block, the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal is transmitted in the first radio resource block, the second sub-signal is transmitted in the second radio resource block, the second sub-signal carries a first information block, and the first information block is used to indicate the second reference signal.

13 . The method in a first node according to claim 11 , wherein when the second reference signal belongs to the second reference signal subset, the first reference signal belongs to the first reference signal subset, or the first reference signal and a reference signal in the first reference signal subset are QCL.

14 . The method in a first node according to claim 11 ,

comprising: when the first condition is satisfied and the second reference signal belongs to the second reference signal subset, transmitting a second signal in a second radio resource group; wherein the second signal is used to determine the second reference signal, a third reference signal is used to determine a spatial-domain relation of the second radio resource group, and the second reference signal and the third reference signal are QCL;

or, monitoring a response for the first signal in a first time window; when both the first condition and a second condition are satisfied and the second reference signal belongs to the second reference signal subset, transmitting a second signal in a second radio resource group; wherein time-domain resources occupied by the first signal are used to determine the first time window, the first time window is not later than a start time for transmitting the second signal, the second signal is used to determine the second reference signal, a third reference signal is used to determine a spatial-domain relation of the second radio resource group, and the second reference signal and the third reference signal are QCL; the second condition comprises: not detecting the response for the first signal in the first time window.

15 . The method in a first node according to claim 11 , wherein the first reference signal subset corresponds to a first index, the second reference signal subset corresponds to a second index, and the first index and the second index are two different non-negative integers.

16 . The method in a first node according to claim 15 , wherein the first index is used to indicate a first cell, the second index is used to indicate a second cell, and the first cell is different from the second cell; or, a name of the first index comprises coreset, and a name of the second index comprises coreset.

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

transmitting a first information group;

transmitting a first reference signal sub-group; and

motoring a first signal in a first radio resource group;

wherein the first information group is used to indicate a first reference signal group, and any reference signal in the first reference signal sub-group belongs to the first reference signal group; a measurement performed on the first reference signal group is used to judge whether a first condition is satisfied; whether the first condition is satisfied is used to determine whether the first signal is transmitted; the first signal is used to determine a second reference signal, and the second reference signal is one of M reference signals, M being a positive integer greater than 1; the first condition comprises that a value of a first counter is not less than a first threshold; a first reference signal is used to determine a spatial-domain relation of the first radio resource group; whether the first reference signal and the second reference signal are QCL is related to whether the second reference signal belongs to a first reference signal subset or belongs to a second reference signal subset; when the second reference signal belongs to the first reference signal subset, the first reference signal and the second reference signal are QCL; when the second reference signal belongs to the second reference signal subset, the first reference signal and the second reference signal are not QCL; the first threshold is a positive integer, and the first reference signal subset and the second reference signal subset are respectively subsets of the M reference signals; the first information group comprises a positive integer number of information block(s), the first reference signal group comprises a positive integer number of reference signal(s), and the first reference signal sub-group comprises a positive integer number of reference signal(s).

18 . The method in a second node according to claim 17 , wherein the first radio resource group comprises a first radio resource block and a second radio resource block, the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal is transmitted in the first radio resource block, the second sub-signal is transmitted in the second radio resource block, the second sub-signal carries a first information block, and the first information block is used to indicate the second reference signal.

19 . The method in a second node according to claim 17 , wherein when the second reference signal belongs to the second reference signal subset, the first reference signal belongs to the first reference signal subset, or the first reference signal and a reference signal in the first reference signal subset are QCL.

20 . The method in a second node according to claim 17 , wherein the first reference signal subset corresponds to a first index, the second reference signal subset corresponds to a second index, and the first index and the second index are two different non-negative integers;

or, the first reference signal subset corresponds to a first index, the second reference signal subset corresponds to a second index, and the first index and the second index are two different non-negative integers; the first index is used to indicate a first cell, the second index is used to indicate a second cell, the first cell is different from the second cell, or a name of the first index comprises coreset, and a name of the second index comprises coreset.