METHOD AND DEVICE IN NODES USED FOR WIRELESS COMMUNICATION

1 . A first node for wireless communications, comprising:

a first receiver, receiving a first information block; receiving a first signaling; and

a first transmitter, transmitting a first bit block in a first radio resource group;

wherein the first signaling occupies a first control channel candidate, and the first control channel candidate is associated with a second control channel candidate; the first control channel candidate corresponds to a first value, the second control channel candidate corresponds to a second value, a reference control channel candidate is determined according to a size relation between the first value and the second value, and the reference control channel candidate is the first control channel candidate or the second control channel candidate; the reference control channel is used to determine a first parameter, the first signaling is used to indicate a first index, the first parameter and the first index are used together to determine a target index, and the target index is used to indicate the first radio resource group from a first radio resource set; the first information block is used to indicate the first radio resource set, the first radio resource set comprises M radio resource groups, and the first radio resource group is one of the M radio resource groups, M being a positive integer greater than 1; the first parameter is a positive integer, the first value is a non-negative integer, and the second value is a non-negative integer.

2 . The first node according to claim 1 , wherein when the first value is less than the second value, the reference control channel candidate is the first control channel candidate; when the first value is greater than the second value, the reference control channel candidate is the second control channel candidate.

3 . The first node according to claim 1 , wherein the first control channel candidate belongs to a first search space set, the second control channel candidate belongs to a second search space set, the first search space set is associated with a first control resource set, and the second search space set is associated with a second control resource set; the first value is equal to a number of Channel Control Element(s) (CCE(s)) comprised in the first control resource set, and the second value is equal to a number of CCE(s) comprised in the second control resource set;

or, the first value is a number of control channel candidate(s) associated with the first control channel candidate, and the second value is a number of control channel candidate(s) associated with the second control channel candidate.

4 . The first node according to claim 1 , wherein a value obtained by dividing a second parameter by the first parameter is used to determine a third parameter, the target index is linearly associated with the third parameter, and the target index is linearly associated with the first index; the third parameter is a non-negative integer, and the target index is a non-negative integer less than M;

or, a value obtained by dividing a second parameter by the first parameter is used to determine a third parameter, the target index is linearly associated with the third parameter, and the target index is linearly associated with the first index; the third parameter is a non-negative integer, and the target index is a non-negative integer less than M; the first control channel candidate is used to determine the second parameter, or the reference control channel candidate is used to determine the second parameter.

5 . The first node according to claim 1 , wherein the first receiver receives a first signal; wherein the first signaling is used to indicate scheduling information of the first signal, and the first bit block comprises a Hybrid Automatic Repeat request-ACKnowledgement (HARQ-ACK) information bit for the first signal.

6 . A second node for wireless communications, comprising:

a second transmitter, transmitting a first information; transmitting a first signaling; and

a second receiver, receiving a first bit block in a first radio resource group;

wherein the first signaling occupies a first control channel candidate, and the first control channel candidate is associated with a second control channel candidate; the first control channel candidate corresponds to a first value, the second control channel candidate corresponds to a second value, a reference control channel candidate is determined according to a size relation between the first value and the second value, and the reference control channel candidate is the first control channel candidate or the second control channel candidate; the reference control channel is used to determine a first parameter, the first signaling is used to indicate a first index, the first parameter and the first index are used together to determine a target index, and the target index is used to indicate the first radio resource group from a first radio resource set; the first information block is used to indicate the first radio resource set, the first radio resource set comprises M radio resource groups, and the first radio resource group is one of the M radio resource groups, M being a positive integer greater than 1; the first parameter is a positive integer, the first value is a non-negative integer, and the second value is a non-negative integer.

7 . The second node according to claim 6 , wherein when the first value is less than the second value, the reference control channel candidate is the first control channel candidate; when the first value is greater than the second value, the reference control channel candidate is the second control channel candidate.

8 . The second node according to claim 6 , wherein the first control channel candidate belongs to a first search space set, the second control channel candidate belongs to a second search space set, the first search space set is associated with a first control resource set, and the second search space set is associated with a second control resource set; the first value is equal to a number of CCE(s) comprised in the first control resource set, and the second value is equal to a number of CCE(s) comprised in the second control resource set;

or, the first value is a number of control channel candidate(s) associated with the first control channel candidate, and the second value is a number of control channel candidate(s) associated with the second control channel candidate.

9 . The second node according to claim 6 , wherein a value obtained by dividing a second parameter by the first parameter is used to determine a third parameter, the target index is linearly associated with the third parameter, and the target index is linearly associated with the first index; the third parameter is a non-negative integer, and the target index is a non-negative integer less than M;

or, a value obtained by dividing a second parameter by the first parameter is used to determine a third parameter, the target index is linearly associated with the third parameter, and the target index is linearly associated with the first index; the third parameter is a non-negative integer, and the target index is a non-negative integer less than M; the first control channel candidate is used to determine the second parameter, or the reference control channel candidate is used to determine the second parameter.

10 . The second node according to claim 6 , wherein the second transmitter transmits a first signal; wherein the first signaling is used to indicate scheduling information of the first signal, and the first bit block comprises a HARQ-ACK information bit for the first signal.

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

receiving a first information block;

receiving a first signaling; and

transmitting a first bit block in a first radio resource group;

wherein the first signaling occupies a first control channel candidate, and the first control channel candidate is associated with a second control channel candidate; the first control channel candidate corresponds to a first value, the second control channel candidate corresponds to a second value, a reference control channel candidate is determined according to a size relation between the first value and the second value, and the reference control channel candidate is the first control channel candidate or the second control channel candidate; the reference control channel is used to determine a first parameter, the first signaling is used to indicate a first index, the first parameter and the first index are used together to determine a target index, and the target index is used to indicate the first radio resource group from a first radio resource set; the first information block is used to indicate the first radio resource set, the first radio resource set comprises M radio resource groups, and the first radio resource group is one of the M radio resource groups, M being a positive integer greater than 1; the first parameter is a positive integer, the first value is a non-negative integer, and the second value is a non-negative integer.

12 . The method according to claim 11 , wherein when the first value is less than the second value, the reference control channel candidate is the first control channel candidate; when the first value is greater than the second value, the reference control channel candidate is the second control channel candidate.

13 . The method according to claim 11 , wherein the first control channel candidate belongs to a first search space set, the second control channel candidate belongs to a second search space set, the first search space set is associated with a first control resource set, and the second search space set is associated with a second control resource set; the first value is equal to a number of CCE(s) comprised in the first control resource set, and the second value is equal to a number of CCE(s) comprised in the second control resource set;

or, the first value is a number of control channel candidate(s) associated with the first control channel candidate, and the second value is a number of control channel candidate(s) associated with the second control channel candidate.

14 . The method according to claim 11 , wherein a value obtained by dividing a second parameter by the first parameter is used to determine a third parameter, the target index is linearly associated with the third parameter, and the target index is linearly associated with the first index; the third parameter is a non-negative integer, and the target index is a non-negative integer less than M;

or, a value obtained by dividing a second parameter by the first parameter is used to determine a third parameter, the target index is linearly associated with the third parameter, and the target index is linearly associated with the first index; the third parameter is a non-negative integer, and the target index is a non-negative integer less than M; the first control channel candidate is used to determine the second parameter, or the reference control channel candidate is used to determine the second parameter.

15 . The method according to claim 11 , comprising:

receiving a first signal;

wherein the first signaling is used to indicate scheduling information of the first signal, and the first bit block comprises a HARQ-ACK information bit for the first signal.

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

transmitting a first information block;

transmitting a first signaling; and

receiving a first bit block in a first radio resource group;

wherein the first signaling occupies a first control channel candidate, and the first control channel candidate is associated with a second control channel candidate; the first control channel candidate corresponds to a first value, the second control channel candidate corresponds to a second value, a reference control channel candidate is determined according to a size relation between the first value and the second value, and the reference control channel candidate is the first control channel candidate or the second control channel candidate; the reference control channel is used to determine a first parameter, the first signaling is used to indicate a first index, the first parameter and the first index are used together to determine a target index, and the target index is used to indicate the first radio resource group from a first radio resource set; the first information block is used to indicate the first radio resource set, the first radio resource set comprises M radio resource groups, and the first radio resource group is one of the M radio resource groups, M being a positive integer greater than 1; the first parameter is a positive integer, the first value is a non-negative integer, and the second value is a non-negative integer.

17 . The method according to claim 16 , wherein when the first value is less than the second value, the reference control channel candidate is the first control channel candidate; when the first value is greater than the second value, the reference control channel candidate is the second control channel candidate.

18 . The method according to claim 16 , wherein the first control channel candidate belongs to a first search space set, the second control channel candidate belongs to a second search space set, the first search space set is associated with a first control resource set, and the second search space set is associated with a second control resource set; the first value is equal to a number of CCE(s) comprised in the first control resource set, and the second value is equal to a number of CCE(s) comprised in the second control resource set;

or, the first value is a number of control channel candidate(s) associated with the first control channel candidate, and the second value is a number of control channel candidate(s) associated with the second control channel candidate.

19 . The method according to claim 16 , wherein a value obtained by dividing a second parameter by the first parameter is used to determine a third parameter, the target index is linearly associated with the third parameter, and the target index is linearly associated with the first index; the third parameter is a non-negative integer, and the target index is a non-negative integer less than M;

or, a value obtained by dividing a second parameter by the first parameter is used to determine a third parameter, the target index is linearly associated with the third parameter, and the target index is linearly associated with the first index; the third parameter is a non-negative integer, and the target index is a non-negative integer less than M; the first control channel candidate is used to determine the second parameter, or the reference control channel candidate is used to determine the second parameter.

20 . The method according to claim 16 , comprising:

transmitting a first signal;

wherein the first signaling is used to indicate scheduling information of the first signal, and the first bit block comprises a HARQ-ACK information bit for the first signal.