在5G(NR)网络中无线侧的数据掉线是根据无线链路监测(RLM)，终端(网络)最终处理（重建或层二重置）结果来确定；为此高层(RRC)为无线监测制定了相关的规则，网络通过无线链路监测配置通知终端:

RadioLinkMonitoringConfig ::= SEQUENCE {kangguoying20210727   failureDetectionResourcesToAddModList SEQUENCE (SIZE(1..maxNrofFailureDetectionResources)) OF RadioLinkMonitoringRS（无线链路失败检测--针对RS的最大检测数)kangguoying20210727   OPTIONAL, -- Need Nkangguoying20210727

  failureDetectionResourcesToReleaseList SEQUENCE (SIZE(1..maxNrofFailureDetectionResources)) OF RadioLinkMonitoringRS-Id(检测失败资源将释放资源）kangguoying20210727   OPTIONAL, -- Need Nkangguoying20210727

  beamFailureInstanceMaxCount ENUMERATED {n1, n2, n3, n4, n5, n6, n8, n10} OPTIONAL, -- Need R   beamFailureDetectionTimer ENUMERATED（波束失败最大检测数量--检测时间） {pbfd1, pbfd2, pbfd3, pbfd4, pbfd5, pbfd6, pbfd8, pbfd10} OPTIONAL, -- Need R   ...}kangguoying20210727

RadioLinkMonitoringRS ::= SEQUENCE {kangguoying20210727   radioLinkMonitoringRS-Id RadioLinkMonitoringRS-Id,   purpose ENUMERATED {beamFailure, rlf, both},（无线链路检测目的--波束失败，无线链路失败，两者）   detectionResource CHOICE {（检测资源--可选）      ssb-Index SSB-Index,（SSB ID)kangguoying20210727      csi-RS-Index NZP-CSI-RS-ResourceId(CSI RS ID)      },   ...}

其中：

maxNrofFailureDetectionResources INTEGER ::= 10 -- Maximum number of failure detection resources

maxNrofFailureDetectionResources-1 INTEGER ::= 9 -- Maximum number of failure detection resources minus 1

      *波束失败与无线链路失败请见“和老康一起学5G”

整理：kangguoying20210727