Depending on how they can be initiated, three types of 5GMM procedures can be distinguished:
根据启动方式，可以区分三种类型的5GMM程序：
a) 5GMM common procedures:
a） 5GMM普通程序：
5GMM common procedure can always be initiated when the UE is in 5GMM-CONNECTED mode. The procedures belonging to this type are:
当UE处于5GMM连接模式时，始终可以启动5GMM普通过程。属于这种类型的程序有：
1) Initiated by the network:
1） 由网络发起：
i) network-initiated NAS transport;
i） 网络发起的NAS传输；
ii) primary authentication and key agreement;
ii）主认证和密钥协议；
iii) security mode control;
iii）安全模式控制；
iv) generic UE configuration update;
iv）通用UE配置更新；
v) identification; and
v） 识别；和
vi) network slice-specific authentication and authorization;
vi）特定于网络片的认证和授权；
2) Initiated by the UE:
2） 由UE发起：
UE-initiated NAS transport.
UE发起NAS传输。
3) Initiated by the UE or the network and used to report certain error conditions detected upon receipt of 5GMM protocol data:
3） 由UE或网络发起，用于报告在接收到5GMM协议数据时检测到的某些错误情况：
5GMM status.
5GMM状态。
b) 5GMM specific procedures:
b） 5GMM特定程序：
At any time only one UE initiated 5GMM specific procedure can be running for each of the access network(s) that the UE is camping in. The procedures belonging to this type are:
在任何时候，对于UE驻留的每个接入网络，只能运行一个UE发起的5GMM特定过程。属于这种类型的程序有：
1) Initiated by the UE and used e.g. to register to the network for 5GS services and establish a 5GMM context, to update the location/parameter(s) of the UE:
1） 由UE发起并用于例如向网络注册5GS服务并建立5GMM上下文以更新UE的位置/参数：
registration.
注册
2) Initiated by the UE or the network and used to deregister from the network for 5GS services and to release a 5GMM context:
2） 由UE或网络发起，用于从网络注销5GS服务并释放5GMM上下文：
de-registration.
取消注册。
3) Initiated by the UE and used to deregister from the network for 5GS services and to release a 5GMM context:
3） 由UE发起，用于从网络注销5GS服务并释放5GMM上下文：
eCall inactivity procedure.
eCall非活动过程。
c) 5GMM connection management procedures:
c） 5GMM连接管理程序：
1) Initiated by the UE and used to establish a secure connection to the network or to request the resource reservation for sending data, or both:
1） 由UE发起并用于建立到网络的安全连接或请求用于发送数据的资源预留，或两者：
service request.
服务请求。
The service request procedure can only be initiated if no UE initiated 5GMM specific procedure is ongoing for each of the access network(s) that the UE is camping in.
仅当UE驻留的每个接入网络没有UE发起的5GMM特定过程正在进行时，才可以发起服务请求过程。
2) Initiated by the network and used to request the establishment of an N1 NAS signalling connection or to request re-establishment of user-plane resources for the PDU session(s) associated with 3GPP access or to request re-establishment of user-plane resources of the PDU session(s) associated with non-3GPP access over 3GPP access; not applicable for the non-3GPP access network:
2） 由网络发起并用于请求建立N1 NAS信令连接，或请求重新建立与3GPP接入相关联的PDU会话的用户面资源，或请求通过3GPP接入重新建立与非3GPP接入相关联的PDU会话的用户面资源；不适用于非3GPP接入网络：
paging.
寻呼。
3) Initiated by the network and used to request re-establishment of user-plane resources of the PDU session(s) associated with non-3GPP access over 3GPP access or to deliver 5GSM downlink signalling messages associated with non-3GPP access over 3GPP access, when the UE is in 5GMM-CONNECTED mode over 3GPP access and in 5GMM-IDLE mode over non-3GPP access; or
3） 当UE在3GPP接入上处于5GMM连接模式且在非3GPP接入上处于5MMM空闲模式时，由网络发起并用于请求重新建立与通过3GPP的非3GPP接入相关联的PDU会话的用户面资源或传递与通过3GPP接入的非3GPP接入相关联的5GMM下行链路信令消息；或
Initiated by the network and used to request re-establishment of user-plane resources of the PDU session(s) associated with 3GPP access over 3GPP access or to deliver downlink signalling associated with 3GPP access over 3GPP access, when the UE is in 5GMM-CONNECTED mode over non-3GPP access, and when the UE is in 5GMM-IDLE mode over 3GPP access and not in MICO mode:
当UE在非3GPP接入上处于5GMM连接模式时，以及当UE处于3GPP接入上的5GMM空闲模式而不是MICO模式时，由网络发起并用于请求重新建立与3GPP连接上的3GPP相关联的PDU会话的用户面资源，或者通过3GPP接入传递与3GPP连接上的3GPP连接相关联的下行链路信令：
notification.
通知。
NOTE 1: In NB-N1 mode, the UE NAS using 5GS services with control plane CIoT 5GS optimization can wait for the lower layers to complete the transmission of the previous UL NAS TRANSPORT messages carrying control plane user data before providing subsequent NAS messages. Other implementations are possible.
注1：在NB-N1模式下，使用控制面CIoT 5GS优化的5GS服务的UE NAS可以在提供后续NAS消息之前，等待较低层完成承载控制面用户数据的先前UL NAS传输消息的传输。其他实现也是可能的。
NOTE 2: When providing NAS messages to the lower layers for transmission, the UE NAS using 5GS services with control plane CIoT 5GS optimization can prioritize sending NAS signalling messages over the UL NAS TRANSPORT messages carrying control plane user data. How the UE performs this prioritization is implementation specific.
注2：当向较低层提供NAS消息以供传输时，使用控制面CIoT 5GS优化的5GS服务的UE NAS可以优先发送NAS信令消息，而不是承载控制面用户数据的UL NAS传输消息。UE如何执行该优先级划分是特定于实现的。