A network device may receive historical data identifying historical error data and error data categorizations associated with a first core network and may store the historical data in a data structure. The network device may receive a request associated with a user equipment and may receive error data from the first core network based on the request. The network device may receive network health data identifying load levels and health of the first core network and a second core network. The network device may determine possible cause data identifying causes associated with the error data based on the historical data, the error data, and the network health data. The network device may generate a cause code for the user equipment based on the possible cause data and may provide the cause code to the user equipment.

A method and an apparatus for identifying a UE in an SAE network, and an MME are provided herein. The method includes: receiving an SAE-TMSI which is allocated to a UE that accesses an SAE network and includes at least: a pool-ID, an MME-ID, and a UE temporary identifier; using the SAE-TMSI to temporarily identify the UE in the SAE network. The apparatus includes: a receiving unit and a temporary identifying unit. The MME includes a temporary identifier allocating unit. Moreover, a method for transmitting and allocating a temporary identifier, and a method for receiving and transmitting information according to the temporary identifier are disclosed herein.

A data processing method and apparatus, and a terminal device are described. The method includes: receiving, by a mobility management device, uplink data sent by a terminal device by using a NAS message, and determining, based on a processing capability of the mobility management device, whether the mobility management device is overloaded; and when the mobility management device is overloaded, instructing, by the mobility management device, the terminal device to transmit the uplink data through a user plane. The data processing method and apparatus may improve communication quality, especially when a bearer between the mobility management device and a service device is not set up, the bearer does not need to be first set up and then released, saving signaling and resources.

The present disclosure relates to a communication technique of fusing a 5G communication system for supporting higher data transmission rate beyond a 4G system with an IoT technology and a system thereof, and provides an intelligent service based on the 5G communication technology and the IoT related technology. A method performed by an access network entity in a wireless communication system includes receiving, from a terminal in the wireless communication system, a first message including first information for identifying an AMF, the first information including an AMF set identifier and an AMF identifier; selecting an AMF set based on the AMF set identifier; selecting an AMF from the selected AMF set; and transmitting, to the terminal, a second message as a response to the first message. The AMF set includes a plurality of AMFs based on network slices the AMFs each support, and the AMF set identifier is an identifier of the AMF set, and the AMF identifier is an identifier of an AMF within the AMF set.

A traffic offloading function (TOF) of a mobile edge computing (MEC) platform uses a traffic forwarding table and a location database updated by monitoring control plane messages. User plane traffic in a default bearer passes through an extended TOF where the IP packets retrieved from a General Packet Radio Service Tunneling Protocol (GTP) tunnel are forwarded following a policy that is created by detecting (or sniffing) control plane messages exchanged over the S1-MME interface. An additional entity, a location database, is responsible for tracking a location of a UE and other hosts in the mobile network. The location database can be used to guide the forwarding policy creation in an absence of the control plane messages.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.

Disclosed is a method of fault recovery in a multi-hop network having a plurality of nodes, defining a route, comprising the steps of: determining that a fault exists between two of the plurality of nodes (B, C); performing a hierarchical fault recovery process.

Embodiments of the present disclosure disclose a function scheduling method, a device, and a system. The method includes: sending, by a control plane network element, a first request to a user plane network element, where the first request is used to request the user plane network element to perform a first function, and the first function is a function supported by both the control plane network element and the user plane network element; and disabling, by the control plane network element, the first function. In the solutions of the embodiments of the present disclosure, a function supported by both the user plane network element and the control plane network element can be flexibly processed.

A method includes: receiving, by a network element selector, a first message from a first external network element, where the first message carries a first session index, and the first session index is used to identify UE served by the first external network element; and sending, by the network element selector, the first message to a first converged controller based on mapping information corresponding to the UE and the first session index in the first message, where the mapping information includes a mapping relationship between the first converged controller and a plurality of different session indexes of the UE, and the plurality of different session indexes of the UE include the first session index. It can be learned that the network element selector sends, based on the mapping information corresponding to the UE, all messages of different external network elements serving the UE to a same converged controller.

Method and apparatus for load balancing in a Cloud-radio access network (C-RAN) are disclosed. A method includes receiving control plane (CP) data associated with a user from a core network or a remote access point; and dispatching the CP data to a first user equipment (UE) virtualized network function component (VNFC) based on a first route.

Internet protocol packets are statelessly identified as associated with a particular session-instance by identifying a key, or session-instance identifier, within the data (or payload) portion of a user plane packet. This identifier is specific to the session-instance and remains constant throughout the session-instance. Using this stateless identification, transmitted user plane packets are automatically routed at the transmission speed of the transmission link using a method that automatically balances the analysis processing load between network probes. The load is balanced by routing the user plane packet to a network probe that is either already analyzing the session-instance or by routing the user plane packet to a system that has processing capacity to analyze a new session-instance. The network probe then analyzes the user plane packet and the session-instance to measure the quality of the user experience of the session-instance and performance of the network.