Method and device used in communication node for wireless communication

1. A first node used for wireless communications, comprising:

a first receiver, determining that a Radio Link Failure (RLF) occurs in a first cell; and

a first transmitter, when a second cell is in a first state, as a response to determining that the RLF occurs in the first cell, determining that the second cell enters into a third state, and transmitting a first message; when the second cell is in a second state, as a response to determining that the RLF occurs in the first cell, transmitting a second message; when the second cell is in a third state, as a response to determining that the RLF occurs in the first cell, transmitting the first message;

wherein the first message is used for a radio link recovery; the second message is used for a radio connection re-establishment; when the second cell is in the first state, the first node does not monitor a control signaling on the second cell; and when the second cell is in the third state, the first node monitors the control signaling on the second cell.

2. The first node according to claim 1 , wherein the behavior of determining that the second cell enters into a third state comprises recovering a radio bearer with the second cell.

3. The first node according to claim 1 , wherein the behavior of determining that the second cell enters into a third state comprises:

the first transmitter, transmitting a first radio signal;

wherein the first radio signal is used to trigger the second cell to enter into the third state.

4. The first node according to claim 1 , wherein the behavior of determining that the second cell enters into a third state comprises:

the first receiver, receiving a second radio signal;

wherein the second radio signal is used to trigger the second cell to enter into the third state.

5. The first node according to claim 1 , comprising:

the first receiver, receiving a first signaling;

wherein the first signaling is used to indicate the second cell to enter into the first state.

6. The first node according to claim 1 , comprising:

the first receiver, receiving a second signaling; when a first condition set is satisfied, starting a first timer; when the first timer is running, switching the second cell to the third state, and stopping the first timer; when the first timer is expired, initiating an RRC connection re-establishment procedure;

wherein the second signaling comprises a first expiration value, and the first expiration value is used to determine a maximum running time of the first timer.

7. The first node according to claim 1 , comprising:

the first receiver, receiving a third signaling;

wherein the third signaling is used to indicate whether the second cell enters into the third state from the first state.

8. A second-type node for wireless communications, comprising:

a second receiver, when a second cell is in a first state, as a response that a first cell is determined to have an RLF, determining that the second cell enters into a third state, and receiving a first message; when the second cell is in a second state, as a response that a first cell is determined to have an RLF, receiving a second message; when the second cell is in a third state, as a response that a first cell is determined to have an RLF, receiving the first message;

wherein the first message is used for a radio link recovery; the second message is used for a radio connection re-establishment; when the second cell is in the first state, a transmitter of the first message does not monitor a control signaling on the second cell; and when the second cell is in the third state, a transmitter of the second message monitors the control signaling on the second cell.

9. The second-type node according to claim 8 , wherein the behavior of determining that the second cell enters into a third state comprises:

the second receiver, receiving a first radio signal;

wherein the first radio signal is used to trigger the second cell to enter into the third state.

10. The second-type node according to claim 8 , wherein the behavior of determining that the second cell enters into a third state comprises:

the second transmitter, transmitting a second radio signal;

wherein the second radio signal is used to trigger the second cell to enter into the third state.

11. The second-type node according to claim 8 , comprising:

the second transmitter, transmitting a first signaling;

wherein the first signaling is used to indicate the second cell to enter into the first state.

12. The second-type node according to claim 8 , comprising:

the second transmitter, transmitting a second signaling;

wherein the second signaling comprises a first expiration value, and the first expiration value is used to determine a maximum running time of the first timer; when a first condition set is satisfied, a first timer is started; when the first timer is running, the second cell is switched to the third state, and the first timer is stopped; when the first timer is expired, an RRC connection re-establishment procedure is initiated.

13. The second-type node according to claim 8 , comprising:

the second transmitter, transmitting a third signaling;

wherein the third signaling is used to indicate whether the second cell enters into the third state from the first state.

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

determining that an RLF occurs in a first cell; and

when a second cell is in a first state, as a response to determining that the RLF occurs in the first cell, determining that the second cell enters into a third state, and transmitting a first message; when the second cell is in a second state, as a response to determining that the RLF occurs in the first cell, transmitting a second message; when the second cell is in a third state, as a response to determining that the RLF occurs in the first cell, transmitting the first message;

wherein the first message is used for a radio link recovery; the second message is used for a radio connection re-establishment; when the second cell is in the first state, the first node does not monitor a control signaling on the second cell; and when the second cell is in the third state, the first node monitors the control signaling on the second cell.

15. The method in a first node for wireless communications according to claim 14 , wherein the behavior of determining that the second cell enters into a third state comprises recovering a radio bearer with the second cell.

16. The method in a first node for wireless communications according to claim 14 , wherein the behavior of determining that the second cell enters into a third state comprises:

transmitting a first radio signal;

wherein the first radio signal is used to trigger the second cell to enter into the third state.

17. The method in a first node for wireless communications according to claim 14 , wherein the behavior of determining that the second cell enters into a third state comprises:

receiving a second radio signal;

wherein the second radio signal is used to trigger the second cell to enter into the third state.

18. The method in a first node for wireless communications according to claim 14 , comprising:

receiving a first signaling;

wherein the first signaling is used to indicate the second cell to enter into the first state.

19. The method in a first node for wireless communications according to claim 14 , comprising:

receiving a second signaling; and

when a first condition set is satisfied, starting a first timer; when the first timer is running, switching the second cell to the third state, and stopping the first timer; and when the first timer is expired, initiating an RRC connection re-establishment procedure;

wherein the second signaling comprises a first expiration value, and the first expiration value is used to determine a maximum running time of the first timer.

20. The method in a first node for wireless communications according to claim 14 , comprising:

receiving a third signaling;

wherein the third signaling is used to indicate whether the second cell enters into the third state from the first state.