METHOD AND DEVICE IN NODES USED FOR WIRELESS COMMUNICATION

1 . A first node for wireless communications, comprising:

a first transceiver, receiving a first information block, the first information block being used to determine multiple PDCCH (Physical Downlink Control Chanel) candidates, any one of the multiple PDCCH candidates occupying at least one CCE (Control Channel Element); and

a first receiver, monitoring at least one PDCCH candidate;

wherein a first PDCCH candidate is one of the multiple PDCCH candidates, and whether there is a second PDCCH candidate among the multiple PDCCH candidates is used to determine whether the first PDCCH candidate is counted for monitoring; the second PDCCH candidate and the first PDCCH candidate occupy same CCE(s); the second PDCCH candidate has a same scrambling as the first PDCCH candidate, and a DCI (Downlink Control Information) format carried by the second PDCCH candidate is of the same size as a DCI format carried by the first PDCCH candidate; a scheduling indication value associated with the first PDCCH candidate is equal to a scheduling indication value associated with the second PDCCH candidate, and at least one of a number of serving cell(s) scheduled by the first PDCCH candidate or a number of serving cell(s) scheduled by the second PDCCH candidate is greater than 1; at least one of two conditions: an index of the second PDCCH candidate is not equal to an index of the first PDCCH candidate or the number of the serving cell(s) scheduled by the second PDCCH candidate is not equal to the number of the serving cell(s) scheduled by the first PDCCH candidate, is satisfied.

2 . The first node according to claim 1 , characterized in that the number of the serving cell(s) scheduled by the second PDCCH candidate is greater than the number of the serving cell(s) scheduled by the first PDCCH candidate; or the number of the serving cell(s) scheduled by the second PDCCH candidate is equal to the number of the serving cell(s) scheduled by the first PDCCH candidate and the index of the second PDCCH candidate is smaller than the index of the first PDCCH candidate.

3 . The first node according to claim 1 , characterized in that the scheduling indication value associated with the first PDCCH candidate is an indication value configured for a serving cell set consisting of all serving cells scheduled by the first PDCCH candidate, the scheduling indication value associated with the first PDCCH candidate being no greater than 7; the scheduling indication value associated with the second PDCCH candidate is equal to a value of a carrier indicator field (CIF), or the scheduling indication value associated with the second PDCCH candidate is an indication value configured for a serving cell set consisting of all serving cells scheduled by the second PDCCH candidate, the scheduling indication value associated with the second PDCCH candidate being no greater than 7.

4 . The first node according to claim 1 , characterized in that a first cell subset includes the serving cell(s) scheduled by the first PDCCH candidate, and a second cell subset includes the serving cell(s) scheduled by the second PDCCH candidate; a relationship between the first cell subset and the second cell subset is used to determine whether a number of monitoring times of PDCCH candidate(s) for the first cell subset and a number of monitoring times of PDCCH candidate(s) for the second cell subset are separately counted.

5 . The first node according to claim 1 , characterized in that a search space set to which the first PDCCH candidate belongs is a first search space set, and a control resource set associated with the first search space set is a first control resource set, the first control resource set including multiple CCEs, and the scheduling indication value associated with the first PDCCH candidate is used to determine a CCE subset occupied by the first PDCCH candidate in the first control resource set.

6 . The first node according to claim 1 , characterized in that the first transceiver transmits a third information block; wherein the third information block is used to indicate a capability parameter set of a transmitter of the third information block, the capability parameter set of the transmitter of the third information block including a first parameter and a second parameter; the first parameter is used to indicate whether a transmitter of the third information block supports a number of downlink serving cells scheduled by a same PDCCH being greater than 1, while the second parameter is used to indicate whether the transmitter of the third information block supports a number of uplink serving cells scheduled by a same PDCCH being greater than 1.

7 . The first node according to claim 1 , characterized in that each CCE occupied by the first PDCCH candidate belongs to a first time window in time domain, and a subcarrier spacing (SCS) of subcarriers occupied in frequency domain by each CCE occupied by the first PDCCH candidate is equal to a first SCS; a number of PDCCH candidate(s) using the first SCS being monitored in the first time window is no greater than a first threshold, and a number of non-overlapped CCE(s) using the first SCS being monitored in the first time window is no greater than a second threshold, the first threshold being a positive integer and the second threshold being a positive integer; the first threshold and the second threshold are both related to a characteristic proportional value, and a totally counted number of serving cells scheduled by the first PDCCH candidate is used to determine the characteristic proportional value, the characteristic proportional value being no less than 0.

8 . A second node for wireless communications, comprising:

a second transceiver, transmitting a first information block, the first information block being used to determine multiple PDCCH (Physical Downlink Control Chanel) candidates, any one of the multiple PDCCH candidates occupying at least one CCE (Control Channel Element); and

a first transmitter, determining at least one PDCCH candidate;

wherein a first PDCCH candidate is one of the multiple PDCCH candidates, and whether there is a second PDCCH candidate among the multiple PDCCH candidates is used to determine whether the first PDCCH candidate is counted for monitoring; the second PDCCH candidate and the first PDCCH candidate occupy same CCE(s); the second PDCCH candidate has a same scrambling as the first PDCCH candidate, and a DCI (Downlink Control Information) format carried by the second PDCCH candidate is of the same size as a DCI format carried by the first PDCCH candidate; a scheduling indication value associated with the first PDCCH candidate is equal to a scheduling indication value associated with the second PDCCH candidate, and at least one of a number of serving cell(s) scheduled by the first PDCCH candidate or a number of serving cell(s) scheduled by the second PDCCH candidate is greater than 1; at least one of two conditions: an index of the second PDCCH candidate is not equal to an index of the first PDCCH candidate or the number of the serving cell(s) scheduled by the second PDCCH candidate is not equal to the number of the serving cell(s) scheduled by the first PDCCH candidate, is satisfied.

9 . The second node according to claim 8 , characterized in that the scheduling indication value associated with the first PDCCH candidate is an indication value configured for a serving cell set consisting of all serving cells scheduled by the first PDCCH candidate, the scheduling indication value associated with the first PDCCH candidate being no greater than 7; the scheduling indication value associated with the second PDCCH candidate is equal to a value of a carrier indicator field (CIF), or the scheduling indication value associated with the second PDCCH candidate is an indication value configured for a serving cell set consisting of all serving cells scheduled by the second PDCCH candidate, the scheduling indication value associated with the second PDCCH candidate being no greater than 7.

10 . The second node according to claim 8 , characterized in that a first cell subset includes the serving cell(s) scheduled by the first PDCCH candidate, and a second cell subset includes the serving cell(s) scheduled by the second PDCCH candidate; a relationship between the first cell subset and the second cell subset is used to determine whether a number of monitoring times of PDCCH candidate(s) for the first cell subset and a number of monitoring times of PDCCH candidate(s) for the second cell subset are separately counted.

11 . The second node according to claim 8 , characterized in that a search space set to which the first PDCCH candidate belongs is a first search space set, and a control resource set associated with the first search space set is a first control resource set, the first control resource set including multiple CCEs, and the scheduling indication value associated with the first PDCCH candidate is used to determine a CCE subset occupied by the first PDCCH candidate in the first control resource set.

12 . The second node according to claim 8 , characterized in that the second transceiver receives a third information block; wherein the third information block is used to indicate a capability parameter set of a transmitter of the third information block, the capability parameter set of the transmitter of the third information block including a first parameter and a second parameter; the first parameter is used to indicate whether a transmitter of the third information block supports a number of downlink serving cells scheduled by a same PDCCH being greater than 1, while the second parameter is used to indicate whether the transmitter of the third information block supports a number of uplink serving cells scheduled by a same PDCCH being greater than 1.

13 . The second node according to claim 8 , characterized in that each CCE occupied by the first PDCCH candidate belongs to a first time window in time domain, and a subcarrier spacing (SCS) of subcarriers occupied in frequency domain by each CCE occupied by the first PDCCH candidate is equal to a first SCS; a number of PDCCH candidate(s) using the first SCS being monitored in the first time window is no greater than a first threshold, and a number of non-overlapped CCE(s) using the first SCS being monitored in the first time window is no greater than a second threshold, the first threshold being a positive integer and the second threshold being a positive integer; the first threshold and the second threshold are both related to a characteristic proportional value, and a totally counted number of serving cells scheduled by the first PDCCH candidate is used to determine the characteristic proportional value, the characteristic proportional value being no less than 0.

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

receiving a first information block, the first information block being used to determine multiple PDCCH (Physical Downlink Control Chanel) candidates, any one of the multiple PDCCH candidates occupying at least one CCE (Control Channel Element); and

monitoring at least one PDCCH candidate;

wherein a first PDCCH candidate is one of the multiple PDCCH candidates, and whether there is a second PDCCH candidate among the multiple PDCCH candidates is used to determine whether the first PDCCH candidate is counted for monitoring; the second PDCCH candidate and the first PDCCH candidate occupy same CCE(s); the second PDCCH candidate has a same scrambling as the first PDCCH candidate, and a DCI (Downlink Control Information) format carried by the second PDCCH candidate is of the same size as a DCI format carried by the first PDCCH candidate; a scheduling indication value associated with the first PDCCH candidate is equal to a scheduling indication value associated with the second PDCCH candidate, and at least one of a number of serving cell(s) scheduled by the first PDCCH candidate or a number of serving cell(s) scheduled by the second PDCCH candidate is greater than 1; at least one of two conditions: an index of the second PDCCH candidate is not equal to an index of the first PDCCH candidate or the number of the serving cell(s) scheduled by the second PDCCH candidate is not equal to the number of the serving cell(s) scheduled by the first PDCCH candidate, is satisfied.

15 . The method in the first node according to claim 14 , characterized in that the number of the serving cell(s) scheduled by the second PDCCH candidate is greater than the number of the serving cell(s) scheduled by the first PDCCH candidate; or the number of the serving cell(s) scheduled by the second PDCCH candidate is equal to the number of the serving cell(s) scheduled by the first PDCCH candidate and the index of the second PDCCH candidate is smaller than the index of the first PDCCH candidate.

16 . The method in the first node according to claim 14 , characterized in that the scheduling indication value associated with the first PDCCH candidate is an indication value configured for a serving cell set consisting of all serving cells scheduled by the first PDCCH candidate, the scheduling indication value associated with the first PDCCH candidate being no greater than 7; the scheduling indication value associated with the second PDCCH candidate is equal to a value of a carrier indicator field (CIF), or the scheduling indication value associated with the second PDCCH candidate is an indication value configured for a serving cell set consisting of all serving cells scheduled by the second PDCCH candidate, the scheduling indication value associated with the second PDCCH candidate being no greater than 7.

17 . The method in the first node according to claim 14 , characterized in that a first cell subset includes the serving cell(s) scheduled by the first PDCCH candidate, and a second cell subset includes the serving cell(s) scheduled by the second PDCCH candidate; a relationship between the first cell subset and the second cell subset is used to determine whether a number of monitoring times of PDCCH candidate(s) for the first cell subset and a number of monitoring times of PDCCH candidate(s) for the second cell subset are separately counted.

18 . The method in the first node according to claim 14 , characterized in that a search space set to which the first PDCCH candidate belongs is a first search space set, and a control resource set associated with the first search space set is a first control resource set, the first control resource set including multiple CCEs, and the scheduling indication value associated with the first PDCCH candidate is used to determine a CCE subset occupied by the first PDCCH candidate in the first control resource set.

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

transmitting a third information block;

wherein the third information block is used to indicate a capability parameter set of a transmitter of the third information block, the capability parameter set of the transmitter of the third information block including a first parameter and a second parameter; the first parameter is used to indicate whether a transmitter of the third information block supports a number of downlink serving cells scheduled by a same PDCCH being greater than 1, while the second parameter is used to indicate whether the transmitter of the third information block supports a number of uplink serving cells scheduled by a same PDCCH being greater than 1.

20 . The method in the first node according to claim 14 , characterized in that each CCE occupied by the first PDCCH candidate belongs to a first time window in time domain, and a subcarrier spacing (SCS) of subcarriers occupied in frequency domain by each CCE occupied by the first PDCCH candidate is equal to a first SCS; a number of PDCCH candidate(s) using the first SCS being monitored in the first time window is no greater than a first threshold, and a number of non-overlapped CCE(s) using the first SCS being monitored in the first time window is no greater than a second threshold, the first threshold being a positive integer and the second threshold being a positive integer; the first threshold and the second threshold are both related to a characteristic proportional value, and a totally counted number of serving cells scheduled by the first PDCCH candidate is used to determine the characteristic proportional value, the characteristic proportional value being no less than 0.