Method and device used in communication node for wireless communication

Abstract

The present application discloses a method and a device in a communication node used for wireless communications. A communication node receives a first signaling; the first signaling being used to determine a first measurement configuration set, the first measurement configuration set being associated with a first index; and receives a second signaling, the second signaling being used to determine a first conditional configuration set, the first conditional configuration set comprising the first index; when the first conditional configuration set comes from a first entity, performs a measurement according to the first measurement configuration set; when the first conditional configuration set comes from a second entity, performs a measurement according to a second measurement configuration set. The present application can support simultaneous CPC configurations by both MN and SN.

What is claimed is: 
     
         1 . A first node for wireless communications, comprising:
 a first receiver, receiving a first signal pool, the first signal pool comprising a first signal set and a second signal set; and determining a link failure of a first connection; and monitoring a second message; and determining a link failure of a second connection; and   a first transmitter, as a response to the action of determining the link failure of the first connection, starting a first recovery procedure; and as a response to the action of starting the first recovery procedure, transmitting a first message; and as a response to the action of determining the link failure of the second connection, triggering a second recovery procedure; and determining whether the second recovery procedure is to be stopped according to a first condition set; the first condition set comprising receiving the second message;   wherein each of the first signal set and the second signal set respectively comprises at least one reference signal resource, and there exists at least one reference signal resource that only belongs to one of the first signal set or the second signal set; a measurement of the first signal set is used to determine the link failure of the first connection; a measurement of the second signal set is used to determine the link failure of the second connection; only a latter one of the first recovery procedure and the second recovery procedure is related to a random access procedure; the first recovery procedure comprises triggering a first link failure; the first message is related to the link failure of the first connection.   
     
     
         2 . The first node according to  claim 1 , comprising:
 the first receiver, when determining the link failure of the first connection and the link failure of the second connection, triggering the random access procedure;   wherein the random access procedure comprises: a Contention-Based Random Access (CBRA) procedure; the action of triggering a second recovery procedure comprises: triggering a random access procedure.   
     
     
         3 . The first node according to  claim 1 , comprising:
 the first receiver, when the first condition set is satisfied, stopping the random access procedure in the second recovery procedure.   
     
     
         4 . The first node according to  claim 1 , wherein the first message comprises a MAC CE or a Truncated MAC CE; the first message comprises a SP field, the SP field being set to 1; the first message comprises a field, the field being used to determine a connection in which a beam failure occurs; the first message comprises an AC field. 
     
     
         5 . The first node according to  claim 1 , wherein the first message comprises a field, the field indicating a reference signal resource corresponding to a candidate beam used for recovery of the beam failure. 
     
     
         6 . The first node according to  claim 1 , wherein the second message comprises a PDCCH; and the second message is addressed to a C-RNTI of the first node. 
     
     
         7 . The first node according to  claim 1 , wherein the second message is received in a given search space, the given search space being associated with the first connection. 
     
     
         8 . The first node according to  claim 1 , wherein the first signal pool is configured by an IE in an RRC message, of which names include RadioLinkMonitoringConfig; a reference signal resource comprises a Channel State Information-Reference Signal (CSI-RS) resource or a Synchronization Signal/Physical Broadcast CHannel (SS/PBCH) Block; the first signal set and the second signal set are used for Beam Failure Detection (BFD) in a Beam Failure Recovery (BFR) mechanism; the first signal set is different from the second signal set; the first signal set is associated with the first connection, while the second signal set is associated with the second connection; the first signal set corresponds to a first index, while the second signal set corresponds to a second index, the first index and the second index being two non-negative integers different from each other; the meaning of the link failure includes: a Beam Link Failure. 
     
     
         9 . The first node according to  claim 1 , wherein the first signal set comprises reference signal(s) indicated by a TCI state corresponding to a first COntrol REsource SET (CORESET) set, while the second signal set comprises reference signal(s) indicated by a TCI state corresponding to a second CORESET set. 
     
     
         10 . The first node according to  claim 1 , wherein the first connection and the second connection have different CORESETs; the first connection and the second connection are both associated with a first cell; or, the first connection is associated with the first cell, while the second connection is associated with a second cell. 
     
     
         11 . The first node according to  claim 1 , wherein the phrase that a measurement of the first signal set is used to determine the link failure of the first connection comprises that: as a response to a received quality of each reference signal resource 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 that a measurement of the second signal set is used to determine the link failure of the second connection comprises that: as a response to a received quality of each reference signal resource 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. 
     
     
         12 . The first node according to  claim 11 , wherein when the first condition set is satisfied, the first counter is set to 0. 
     
     
         13 . The first node according to  claim 1 , comprising:
 the first receiver, monitoring a fourth message;   wherein the random access procedure comprised in the second recovery procedure comprises transmitting a third message, the third message being used to trigger the fourth message.   
     
     
         14 . The first node according to  claim 13 , wherein the third message comprises a first sub-message and a second sub-message, the first sub-message comprising a random access preamble, while the second sub-message comprising a C-RNTI MAC CE; the third message comprises a first data unit, the first data unit being used to indicate the second link failure; the fourth message comprises a Downlink Control Information (DCI), and a Cyclic Redundancy Check (CRC) of the fourth message is scrambled by a C-RNTI. 
     
     
         15 . The first node according to  claim 14 , wherein the second sub-message comprises the first identifier, and the second sub-message comprises a Candidate RS ID. 
     
     
         16 . The first node according to  claim 13 , comprising:
 the first receiver, as a response to the second recovery procedure being successfully completed, stopping the first recovery procedure; the second recovery procedure comprising receiving the fourth message.   
     
     
         17 . The first node according to  claim 13 , wherein the first message is used to indicate a first reference signal resource in a first resource pool; the third message is used to indicate a second reference signal resource; the first condition set comprises that the second reference signal resource belongs to the first resource pool, the first resource pool comprising at least one reference signal resource. 
     
     
         18 . The first node according to  claim 1 , comprising:
 the first receiver, as a response to the first condition set being satisfied, canceling the first link failure.   
     
     
         19 . A second node for wireless communications, comprising:
 a second transmitter, transmitting a first signal pool, the first signal pool comprising a first signal set and a second signal set; and as a response to receiving a first message, transmitting a second message; and   a second receiver, receiving the first message;   wherein a link failure of a first connection is determined; as a response to the link failure of the first connection being determined, a first recovery procedure is started; a link failure of a second connection is determined; as a response to the link failure of the second connection being determined, a second recovery procedure is triggered; whether the second recovery procedure is to be stopped is determined according to a first condition set; the first condition set comprising the second message being received; each of the first signal set and the second signal set respectively comprises at least one reference signal resource, and there exists at least one reference signal resource that only belongs to one of the first signal set or the second signal set; a measurement of the first signal set is used to determine the link failure of the first connection; a measurement of the second signal set is used to determine the link failure of the second connection; only a latter one of the first recovery procedure and the second recovery procedure is related to a random access procedure; the first recovery procedure comprises triggering a first link failure; the first message is related to the link failure of the first connection.   
     
     
         20 . A method in a first node for wireless communications, comprising:
 receiving a first signal pool, the first signal pool comprising a first signal set and a second signal set;   determining a link failure of a first connection; and   as a response to the action of determining the link failure of the first connection, starting a first recovery procedure; as a response to the action of starting the first recovery procedure, transmitting a first message;   monitoring a second message;   determining a link failure of a second connection; and   as a response to the action of determining the link failure of the second connection, triggering a second recovery procedure; and determining whether the second recovery procedure is to be stopped according to a first condition set; the first condition set comprising receiving the second message;   wherein each of the first signal set and the second signal set respectively comprises at least one reference signal resource, and there exists at least one reference signal resource that only belongs to one of the first signal set or the second signal set; a measurement of the first signal set is used to determine the link failure of the first connection; a measurement of the second signal set is used to determine the link failure of the second connection; only a latter one of the first recovery procedure and the second recovery procedure is related to a random access procedure; the first recovery procedure comprises triggering a first link failure; the first message is related to the link failure of the first connection.