METHOD AND DEVICE IN NODES USED FOR WIRELESS COMMUNICATION

1 . A first node for wireless communications, comprising:

a first receiver, receiving a first signal set and a second signal set; a measurement of the first signal set being used to determine a first link failure; and a measurement of the second signal set being used to determine a second link failure; and

a first transceiver, as a response to the action of determining a first link failure, starting a first link recovery procedure; and determining according to at least one of a first parameter or a second parameter whether to trigger a second link recovery procedure as a response to the action of determining a second link failure;

wherein each of the first signal set and the second signal set respectively comprises at least one reference signal associated with a first cell, and there exists at least one reference signal that only belongs to one of the first signal set or the second signal set; the first parameter is a time of the first link recovery procedure relative to the action of determining a second link failure, and the second parameter is whether the second link recovery procedure comprises a random access procedure.

2 . The first node according to claim 1 , wherein the phrase of a measurement of the first signal set being used to determine a first link failure comprises: as a response to a received quality of each reference signal in the first signal set being lower than a first threshold, reporting to higher layers a first-type indication used for updating a first counter; the phrase of a measurement of the second signal set being used to determine a second link failure comprises: as a response to a received quality of each reference signal in the second signal set being lower than a second threshold, reporting to higher layers a second-type indication used for updating a second counter.

3 . The first node according to claim 1 , wherein when a first condition is satisfied, the first transceiver drops triggering the second link recovery procedure; where the first condition comprises that the first link recovery procedure is started before the action of determining a second link failure; or, the first condition comprises that the first link recovery procedure is started before the action of determining a second link failure, and that the first link recovery procedure is not successfully completed before the action of determining a second link failure.

4 . The first node according to claim 1 , wherein when a second condition is satisfied, as a response to the action of determining a second link failure, the first transceiver triggers the second link recovery procedure; where the second condition comprises that the first link recovery procedure is successfully completed before the action of determining a second link failure.

5 . The first node according to claim 1 , wherein when a third condition is satisfied, the first transceiver starts the second link recovery procedure; where the third condition comprises that the first link recovery procedure is started after the action of determining a second link failure;

or, when the third condition is satisfied, the first transceiver starts the second link recovery procedure; where the third condition comprises that the first link recovery procedure is started after the action of determining a second link failure; when the third condition and a fourth condition are both satisfied, as a response to triggering a first link recovery procedure, the first transceiver terminates the second link recovery procedure; where the fourth condition comprises that the second link recovery procedure is started and not successfully completed before the action of determining a first link failure.

6 . The first node according to claim 1 , wherein when a fifth condition is satisfied, as a response to the action of determining a second link failure, the first transceiver triggers the second link recovery procedure; when the fifth condition is unsatisfied, the first transceiver drops triggering a second link recovery procedure; where the fifth condition comprises that the second link recovery procedure comprises a random access procedure.

7 . A second node for wireless communications, comprising:

a second transmitter, transmitting a first signal set and a second signal set; and

a second transceiver, monitoring whether a first link recovery procedure is started;

wherein when a measurement of the first signal set is used to determine a first link failure, the first link recovery procedure is started; when a measurement of the second signal set is used to determine a second link failure, at least one of a first parameter or a second parameter is used to determine whether a second link recovery procedure is triggered; each of the first signal set and the second signal set respectively comprises at least one reference signal associated with a first cell, and there exists at least one reference signal that only belongs to one of the first signal set or the second signal set; the first parameter is a time of the first link recovery procedure relative to the action of determining a second link failure, and the second parameter is whether the second link recovery procedure comprises a random access procedure.

8 . The second node according to claim 7 , wherein when a first condition is satisfied, triggering of the second link recovery procedure is dropped; where the first condition comprises that the first link recovery procedure is started before the action of determining a second link failure; or, the first condition comprises that the first link recovery procedure is started before the action of determining a second link failure, and that the first link recovery procedure is not successfully completed before the action of determining a second link failure;

or, when a second condition is satisfied, as a response to the action of determining a second link failure, the second link recovery procedure is triggered; where the second condition comprises that the first link recovery procedure is successfully completed before the action of determining a second link failure.

9 . The second node according to claim 7 , wherein when a third condition is satisfied, the second link recovery procedure is triggered; where the third condition comprises that the first link recovery procedure is started after the action of determining a second link failure;

or, when a third condition is satisfied, the second link recovery procedure is triggered; where the third condition comprises that the first link recovery procedure is started after the action of determining a second link failure; when the third condition and a fourth condition are both satisfied, as a response to the first link recovery procedure being triggered, the second link recovery procedure is terminated; where the fourth condition comprises that the second link recovery procedure is started and not successfully completed before the action of determining a first link failure.

10 . The second node according to claim 7 , wherein when a fifth condition is satisfied, as a response to the action of determining a second link failure, the second link recovery procedure is triggered; when the fifth condition is unsatisfied, triggering of the second link recovery procedure is dropped; where the fifth condition comprises that the second link recovery procedure comprises a random access procedure.

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

receiving a first signal set and a second signal set; a measurement of the first signal set being used to determine a first link failure; and a measurement of the second signal set being used to determine a second link failure; and

as a response to the action of determining a first link failure, starting a first link recovery procedure; and determining according to at least one of a first parameter or a second parameter whether to trigger a second link recovery procedure as a response to the action of determining a second link failure;

wherein each of the first signal set and the second signal set respectively comprises at least one reference signal associated with a first cell, and there exists at least one reference signal that only belongs to one of the first signal set or the second signal set; the first parameter is a time of the first link recovery procedure relative to the action of determining a second link failure, and the second parameter is whether the second link recovery procedure comprises a random access procedure.

12 . The method according to claim 11 , wherein the phrase of a measurement of the first signal set being used to determine a first link failure comprises: as a response to a received quality of each reference signal in the first signal set being lower than a first threshold, reporting to higher layers a first-type indication used for updating a first counter; the phrase of a measurement of the second signal set being used to determine a second link failure comprises: as a response to a received quality of each reference signal in the second signal set being lower than a second threshold, reporting to higher layers a second-type indication used for updating a second counter.

13 . The method according to claim 11 , comprising: when a first condition is satisfied, dropping triggering the second link recovery procedure; where the first condition comprises that the first link recovery procedure is started before the action of determining a second link failure; or, the first condition comprises that the first link recovery procedure is started before the action of determining a second link failure, and that the first link recovery procedure is not successfully completed before the action of determining a second link failure.

14 . The method according to claim 11 , comprising: when a second condition is satisfied, as a response to the action of determining a second link failure, triggering the second link recovery procedure; where the second condition comprises that the first link recovery procedure is successfully completed before the action of determining a second link failure.

15 . The method according to claim 11 , comprising: when a third condition is satisfied, starting the second link recovery procedure; where the third condition comprises that the first link recovery procedure is started after the action of determining a second link failure;

or, comprising: when the third condition is satisfied, starting the second link recovery procedure; where the third condition comprises that the first link recovery procedure is started after the action of determining a second link failure; when the third condition and a fourth condition are both satisfied, as a response to triggering a first link recovery procedure, the first transceiver terminates the second link recovery procedure; where the fourth condition comprises that the second link recovery procedure is started and not successfully completed before the action of determining a first link failure.

16 . The method according to claim 11 , comprising: when a fifth condition is satisfied, as a response to the action of determining a second link failure, triggering the second link recovery procedure; when the fifth condition is unsatisfied, dropping triggering a second link recovery procedure; where the fifth condition comprises that the second link recovery procedure comprises a random access procedure.

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

transmitting a first signal set and a second signal set; and

monitoring whether a first link recovery procedure is started;

wherein when a measurement of the first signal set is used to determine a first link failure, the first link recovery procedure is started; when a measurement of the second signal set is used to determine a second link failure, at least one of a first parameter or a second parameter is used to determine whether a second link recovery procedure is triggered; each of the first signal set and the second signal set respectively comprises at least one reference signal associated with a first cell, and there exists at least one reference signal that only belongs to one of the first signal set or the second signal set; the first parameter is a time of the first link recovery procedure relative to the action of determining a second link failure, and the second parameter is whether the second link recovery procedure comprises a random access procedure.

18 . The method according to claim 17 , wherein when a first condition is satisfied, triggering of the second link recovery procedure is dropped; where the first condition comprises that the first link recovery procedure is started before the action of determining a second link failure; or, the first condition comprises that the first link recovery procedure is started before the action of determining a second link failure, and that the first link recovery procedure is not successfully completed before the action of determining a second link failure;

or, when a second condition is satisfied, as a response to the action of determining a second link failure, the second link recovery procedure is triggered; where the second condition comprises that the first link recovery procedure is successfully completed before the action of determining a second link failure.

19 . The method according to claim 17 , wherein when a third condition is satisfied, the second link recovery procedure is triggered; where the third condition comprises that the first link recovery procedure is started after the action of determining a second link failure;

or, when a third condition is satisfied, the second link recovery procedure is triggered; where the third condition comprises that the first link recovery procedure is started after the action of determining a second link failure; when the third condition and a fourth condition are both satisfied, as a response to the first link recovery procedure being triggered, the second link recovery procedure is terminated; where the fourth condition comprises that the second link recovery procedure is started and not successfully completed before the action of determining a first link failure.

20 . The method according to claim 17 , wherein when a fifth condition is satisfied, as a response to the action of determining a second link failure, the second link recovery procedure is triggered; when the fifth condition is unsatisfied, triggering of the second link recovery procedure is dropped; where the fifth condition comprises that the second link recovery procedure comprises a random access procedure.