摘要：【中文】本发明实施例提供的PDU会话重建方法、装置、系统及存储介质，与SMF产生信令交互的NF获取主用会话管理功能SMF的备用SMF信息，在NF确定主用SMF发生故障时，基于备用SMF信息向备用SMF发送SMF故障通知消息，备用SMF在接收到SMF故障通知消息时，触发PDU会话的释放并重激活，避免了SMF故障时数据传输的失败，尤其是当UPF收到发往UE的下行数据时因SMF故障而导致的数据投递失败，能有效改进SMF故障时的的PDU会话恢复流程，并有效保证了上下行数据的正常传输。 【EN】The method, the device, the system and the storage medium for reconstructing the PDU session provided by the embodiment of the invention have the advantages that the NF which generates signaling interaction with the SMF acquires the standby SMF information of the SMF with the primary session management function, when the NF determines that the primary SMF has a fault, the NF sends an SMF fault notification message to the standby SMF based on the standby SMF information, and when the standby SMF receives the SMF fault notification message, the standby SMF triggers the release and reactivation of the PDU session, thereby avoiding the failure of data transmission when the SMF has a fault, particularly the failure of data delivery caused by the SMF fault when the UPF receives the downlink data sent to the UE, effectively improving the PDU session recovery flow when the SMF has a fault and effectively ensuring the normal transmission of the uplink data and the downlink data.

摘要：【中文】本发明实施例提供的UE迁移方法、NRF、备用SMF、系统及存储介质，NRF获取主用SMF的状态信息，NRF根据状态信息确定主用SMF发生故障时，向备用SMF发送SMF故障通知消息，然后备用SMF根据接收到的SMF故障通知消息将主用SMF上的待迁移UE迁移到自身上，有效解决了因SMF故障造成PDU会话失效，进而导致UE的上下行数据无法正常投递的问题；并且，本发明也提供了一种将故障SMF上的UE批量恢复到备用SMF上的方法，能有效节省SMF故障恢复的总体时间。 【EN】According to the UE migration method, the NRF, the standby SMF, the system and the storage medium provided by the embodiment of the invention, the NRF acquires the state information of the main SMF, the NRF sends an SMF fault notification message to the standby SMF when determining that the main SMF has a fault according to the state information, and then the standby SMF migrates the UE to be migrated on the main SMF to the self according to the received SMF fault notification message, so that the problem that the PDU session fails due to the SMF fault, and further the uplink and downlink data of the UE cannot be normally delivered is effectively solved; moreover, the invention also provides a method for restoring the UE on the failed SMF to the standby SMF in batch, which can effectively save the total time of SMF failure restoration.

摘要：【中文】本发明提供了一种路径，路径信息的处理方法及装置。具体而言，路径的处理方法包括：I‑SMF接收A‑SMF第一消息，其中，所述第一消息包括：上下文信息；所述I‑SMF根据所述上下文信息确定所述I‑SMF建立的数据路径对应的方式以及选择数据路径。通过本发明，解决了相关技术中由于I‑SMF无法决策是否插入一个UL‑CL还是BP所导致的网络结构无法满足路由需求的问题，达到了优化数据路径，实现方式简单的效果。 【EN】The invention provides a path, a processing method and a processing device of path information. Specifically, the path processing method includes: the method comprises the steps that an I-SMF receives an A-SMF first message, wherein the first message comprises: context information; and the I-SMF determines a corresponding mode of a data path established by the I-SMF and selects the data path according to the context information. The invention solves the problem that the network structure can not meet the routing requirement in the prior art because the I-SMF can not decide whether to insert an UL-CL or a BP, and achieves the effects of optimizing a data path and having simple implementation mode.