#cause#detail3Illegal UE5PEI not accepted6Ilegal ME75GS services not allowed9UE identity cannot be derived by the network10Implicitly de-registered11PLMN not allowed12Tracking area not allowed13Roaming not allowed in this tracking area15No suitable cells in tracking area20MAC failure21Synch failure22Congestion23UE security capabilities mismatch24Security mode rejected, unspecified26Non-5G authentication unacceptable27N1 mode not allowed28Restricted service area43LADN not available65Maximum number of PDU sessions reached67Insufficient resources for specific slice and DNN69Insufficient resources for specific slice71ngKSI already in use72Non-3GPP access to 5GCN not allowed73Serving network not authorized90Payload was not forwarded91DNN not supported or not subscribed in the slice92Insufficient user-plane resources for the PDU session95Semantically incorrect message96Invalid mandatory information97Message type non-existent or not implemented98Message type not compatible with the protocol state99Information element non-existent or not implemented100Conditional IE error101Message not compatible with the protocol state111Protocol error, unspecified
定时器
定时器启动停止超时t3502默认12min，在注册或非注册态，如果连续尝试注册失败次数为5时，启动该定时器。发送注册请求时停止init registration proceduret3511默认10s，注册失败重试，且重试次数未到5次，发送注册请求时停止超时重传注册请求T3540默认10s,在收到网络的一些失败原因，或者可能发生切片变化，导致需要重新注册的，需要启动，因为网络会主动发release,如果没有收到，在定时器超时后，就主动local releaseN1连接释放或PDU session已建立主动local releaset3512注册态，离开连接态时，启动该定时器。进入deregistrated或进入连接态超时后，如果是紧急业务，做隐式去注册，如果非紧急业务，做周期注册t3520终端鉴权网络失败，回复authentionfailure,启动定时器收到下一次的鉴权请求停止超时后如果不是紧急业务，执行local release,cell as baredt3510注册请求发送成功时启动收到注册接收、拒绝停止超时发起注册重试t3521去注册请求发送成功时启动收到去注册接受停止超时认为去注册成功t3517服务请求发送成功时启动收到服务接受或拒绝停止超时触发SR重试t3525T3517超时且SR重试达5次启动迁移到非DEREGISTRED和 NORMAL SERVICE，或驻留在新PLMN 或用户面资源成功建立后停止超时重试SRt3516卡鉴权后生成RAND和RES*启动收到SMC\SERVICE REJECT\REGISTRATION ACCEPT\AUTHENTICICATIN REJECT，发送AUTHENTIACATION FAILURE或返回IDLE时，迁移到去注册和NULL删除RAND和RES*
