METHOD AND DEVICE IN NODES USED FOR WIRELESS COMMUNICATION

1 . A first node for wireless communications, characterized in comprising:

a first receiver, receiving a first configuration information block, the first configuration information block being used to determine configuration information for a first reference signal, the first reference signal including a DMRS, the configuration information for the first reference signal including a first TCI state, the first TCI state indicating a second reference signal;

the first receiver, receiving the first reference signal and a first signal, the configuration information for the first reference signal being used to determine a first PCI, the first signal indicating a second PCI, and the first signal including a synchronization signal;

wherein the first reference signal and the first signal are overlapping in time domain; the second PCI is not equal to a PCI of a target cell, the target cell being a serving cell of the first node; whether the first reference signal and the first signal are quasi co-located is related to whether the first PCI and the second PCI are equal; when the first PCI is equal to the second PCI, the first reference signal and the first signal are quasi co-located.

2 . The first node according to claim 1 , characterized in that when the first PCI is not equal to the second PCI, the first node itself determines whether the first reference signal and the first signal are quasi co-located;

or, when the first PCI is not equal to the second PCI, the first reference signal and the first signal are non-quasi co-located;

or, whether a first condition is satisfied is used to determine whether the first reference signal and the first signal are quasi co-located; the first condition includes that there is a PCI in a first PCI set that is equal to the second PCI; a first TCI state set is used to determine the first PCI set, the first TCI state set being configurable; the first TCI state belongs to the first TCI state set.

3 . The first node according to claim 1 , characterized in that when the first node is transmitting data via a cell identified by the second PCI, the serving cell of the first node remains unchanged.

4 . The first node according to claim 1 , characterized in that the first receiver receives a second configuration information block; where the second configuration information block indicates configuration information for the first signal;

or, the first receiver receives a second configuration information block; where the second configuration information block indicates configuration information for the first signal, the second configuration information block being transmitted in a cell group to which the target cell belongs.

5 . The first node according to claim 1 , characterized in that the first configuration information block is transmitted in a cell group to which the target cell belongs.

6 . The first node according to claim 1 , characterized in that the first TCI state indicates a first cell index, the second reference signal and the first cell index being indicated in a same QCL-Info, the first cell index and the first PCI identifying different cells, respectively.

7 . A second node for wireless communications, characterized in comprising:

a first transmitter, transmitting a first configuration information block, the first configuration information block being used to determine configuration information for a first reference signal, the first reference signal including a DMRS, the configuration information for the first reference signal including a first TCI state, the first TCI state indicating a second reference signal;

wherein the first reference signal and a first signal are overlapping in time domain; the configuration information for the first reference signal is used to determine a first PCI, and the first signal indicates a second PCI, the first signal including a synchronization signal; the second PCI is not equal to a PCI of a target cell, the target cell being a serving cell of a target receiver of the first configuration information block; whether the first reference signal and the first signal are quasi co-located is related to whether the first PCI and the second PCI are equal; when the first PCI is equal to the second PCI, the first reference signal and the first signal are quasi co-located.

8 . The second node according to claim 7 , characterized in that when the first PCI is not equal to the second PCI, the target receiver of the first configuration information block itself determines whether the first reference signal and the first signal are quasi co-located;

or, when the first PCI is not equal to the second PCI, the first reference signal and the first signal are non-quasi co-located;

or whether a first condition is satisfied is used to determine whether the first reference signal and the first signal are quasi co-located; the first condition includes that there is a PCI in a first PCI set that is equal to the second PCI; a first TCI state set is used to determine the first PCI set, the first TCI state set being configurable; the first TCI state belongs to the first TCI state set.

9 . The second node according to claim 7 , characterized in that when the target receiver of the first configuration information block is transmitting data using a cell identified by the second PCI, the serving cell of the target receiver of the first configuration information block remains unchanged;

or, the first transmitter transmits a second configuration information block; where the second configuration information block indicates configuration information for the first signal.

10 . The second node according to claim 7 , characterized in that the first configuration information block is transmitted in a cell group to which the target cell belongs.

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

receiving a first configuration information block, the first configuration information block being used to determine configuration information for a first reference signal, the first reference signal including a DMRS, the configuration information for the first reference signal including a first TCI state, the first TCI state indicating a second reference signal; and

receiving the first reference signal and a first signal, the configuration information for the first reference signal being used to determine a first PCI, the first signal indicating a second PCI, and the first signal including a synchronization signal;

wherein the first reference signal and the first signal are overlapping in time domain; the second PCI is not equal to a PCI of a target cell, the target cell being a serving cell of the first node; whether the first reference signal and the first signal are quasi co-located is related to whether the first PCI and the second PCI are equal; when the first PCI is equal to the second PCI, the first reference signal and the first signal are quasi co-located.

12 . The method according to claim 11 , characterized in that when the first PCI is not equal to the second PCI, the first node itself determines whether the first reference signal and the first signal are quasi co-located;

or, when the first PCI is not equal to the second PCI, the first reference signal and the first signal are non-quasi co-located;

or, whether a first condition is satisfied is used to determine whether the first reference signal and the first signal are quasi co-located; the first condition includes that there is a PCI in a first PCI set that is equal to the second PCI; a first TCI state set is used to determine the first PCI set, the first TCI state set being configurable; the first TCI state belongs to the first TCI state set.

13 . The method according to claim 11 , characterized in that when the first node is transmitting data via a cell identified by the second PCI, the serving cell of the first node remains unchanged.

14 . The method according to claim 11 , characterized in comprising:

receiving a second configuration information block; where the second configuration information block indicates configuration information for the first signal;

or,

receiving a second configuration information block; where the second configuration information block indicates configuration information for the first signal, the second configuration information block being transmitted in a cell group to which the target cell belongs.

15 . The method according to claim 11 , characterized in that the first configuration information block is transmitted in a cell group to which the target cell belongs.

16 . The method according to claim 11 , characterized in that the first TCI state indicates a first cell index, the second reference signal and the first cell index being indicated in a same QCL-Info, the first cell index and the first PCI identifying different cells, respectively.

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

transmitting a first configuration information block, the first configuration information block being used to determine configuration information for a first reference signal, the first reference signal including a DMRS, the configuration information for the first reference signal including a first TCI state, the first TCI state indicating a second reference signal;

wherein the first reference signal and a first signal are overlapping in time domain; the configuration information for the first reference signal is used to determine a first PCI, and the first signal indicates a second PCI, the first signal including a synchronization signal; the second PCI is not equal to a PCI of a target cell, the target cell being a serving cell of a target receiver of the first configuration information block; whether the first reference signal and the first signal are quasi co-located is related to whether the first PCI and the second PCI are equal; when the first PCI is equal to the second PCI, the first reference signal and the first signal are quasi co-located.

18 . The method according to claim 17 , characterized in that when the first PCI is not equal to the second PCI, the target receiver of the first configuration information block itself determines whether the first reference signal and the first signal are quasi co-located;

or, when the first PCI is not equal to the second PCI, the first reference signal and the first signal are non-quasi co-located;

or whether a first condition is satisfied is used to determine whether the first reference signal and the first signal are quasi co-located; the first condition includes that there is a PCI in a first PCI set that is equal to the second PCI; a first TCI state set is used to determine the first PCI set, the first TCI state set being configurable; the first TCI state belongs to the first TCI state set.

19 . The method according to claim 17 , characterized in that when the target receiver of the first configuration information block is transmitting data using a cell identified by the second PCI, the serving cell of the target receiver of the first configuration information block remains unchanged;

or, comprising:

transmitting a second configuration information block; where the second configuration information block indicates configuration information for the first signal.

20 . The method according to claim 17 , characterized in that the first configuration information block is transmitted in a cell group to which the target cell belongs.