Abstract: A wireless transmit/receive unit (WTRU) may establish one or more protocol data unit (PDU) sessions via a radio access network (RAN) node. The WTRU may transition to an inactive state. The WTRU may send a connection resume message to a RAN node that indicates a request to resume the established plurality of PDU sessions via the RAN node. The WTRU may receive a message from the RAN node. For example, the RAN node may send a message indicating a subset of the plurality of PDU sessions that are available upon resuming a connection with the RAN node. The WTRU may deactivate at least one established PDU session of the plurality of PDU sessions based on the received message from the RAN node that indicates at least one established PDU session not being included in the subset of the plurality of PDU sessions that are available.

Abstract: Embodiments of the present invention disclose a bearer handover control device and control method. The method includes: receiving, by a network side device, a bearer handover message; and determining, by the network side device according to the bearer handover message, a bearer needing to be handed over in all bearers, so that an end marker End Marker message is sent to a source base station only for the bearer needing to be handed over. By using the foregoing solutions, for a multi-connection scenario, a network side device can determine a bearer needing to be handed over, so that an end marker message is sent only for the bearer needing to be handed over, which can prevent discarding of subsequent data of a bearer that is not to be handed over, and ensure multiple connections between a UE and base stations, thereby improving stability of a system.

Abstract: This application discloses example user plane bearer setup methods and devices, so as to switch data from a control plane solution to a user plane solution. According to one example method in this application, a serving gateway receives indication information sent by a mobility management entity, and allocates an identifier to a bearer according to the indication information, so as to set up an S1 interface user plane bearer. Data can be switched from the control plane solution to the user plane solution through setup of the user plane bearer.

Abstract: The present application discloses an application migration method in a mobile edge system, a related device, and a system. The method performed by a mobile edge orchestrator includes: obtaining a working index set of a to-be-migrated application on a first mobile edge server, where the working index set includes a migration index set including at least one migration index; determining a target migration solution of the to-be-migrated application based on the working index set and a preset correspondence, which is a correspondence between a migration index set and a migration solution; and sending a migration instruction to a mobile edge platform manager, where the migration instruction carries the target migration solution, and the migration instruction is used to instruct the mobile edge platform manager to migrate, based on the target migration solution, the to-be-migrated application from the first mobile edge server to a second mobile edge server.

Abstract: A mobility management apparatus reselection method and a mobility management apparatus are provided. The method includes: receiving an access request message sent from user equipment (UE), where the access request message carries identity information of the UE; determining, according to the identity information of the UE, a type of a mobility management apparatus that the UE needs to access; reselecting a second mobility management apparatus according to the type of the mobility management apparatus that the UE needs to access; and forwarding the access request message to the second mobility management apparatus, so that the second mobility management apparatus executes an access request procedure of the UE. The embodiments of the present invention is applicable to the field of communications technologies.

Abstract: Embodiments of the present invention relate to the communications field, and provide a network troubleshooting method and device, which can determine a service recovery policy according to a power saving state of user equipment after a mobility management entity is faulty, and can reduce unnecessary consumption of network resources. A specific solution is: obtaining a power saving state of user equipment; and if it is detected that a mobility management entity MME managing the user equipment is faulty, selecting a service recovery policy for the user equipment according to the power saving state, where the service recovery policy includes: not initiating service recovery or initiating service recovery. The present invention is used to process a fault of an MME.

Abstract: A capability exposure implementation method and system, and a related device are provided. A method embodiment of the present disclosure includes: obtaining capability information of a radio access network device, configuring an API, and setting a use time limit of the API, where the API is used to provide the capability information for a second mobile edge platform; triggering a registration function to send registration information to the second mobile edge platform, where the registration information includes an identifier of the API; receiving an API request sent by the second mobile edge platform, where the API request includes the identifier of the API; detecting whether the use time limit of the API expires; and if the use time limit of the API does not expire, sending an API response to the second mobile edge platform by using the API, where the API response includes the capability information.

Abstract: The present disclosure relates to a mobile edge platform switching method. In one example method, an application identity of a source application instance is received by a second mobile edge platform from a first mobile edge platform. The first mobile edge platform provides a service for the source application instance. The source application instance provides a service for a user equipment. A target application instance of the user equipment is determined based on the application identity. The application identity of the source application instance is the same as an application identity of the target application instance. The second mobile edge platform provides a service for the target application instance. A switching notification message is sent by the second mobile edge platform to the target application instance. The switching notification message is used to instruct the target application instance to provide a service for the user equipment.

Abstract: The present invention provides a method and a network element for acquiring information about a packet. The method includes: after a UE establishes a bearer, sending, by a first network element, a first acquiring request to a second network element, where the first acquiring request is used to instruct the second network element to acquire information about a packet that is transmitted between the UE and a packet data network PDN and passes through the second network element; and receiving, by the first network element, information about a packet, where the information about the packet is sent by the second network element, and the information about the packet is information that is about a packet and is collected by the second network element according to the first acquiring request.

Abstract: Method and an apparatus for determining a bearer for mobile edge computing are disclosed. A Mobile Edge Computing (MEC) can obtain a data packet that includes an end marker. The MEC can obtain a bearer identifier and an identifier of UE in a handover procedure according to the data packet that includes the end maker, and requests information about the second bearer from a node of a second bearer. The request can include the bearer identifier of the UE and the identifier of the UE. The node of the second bearer can return a response message and information regarding the second bearer according to the request. The MEC can receive the response message and store the information regarding the second bearer according to the identifier of the UE and the bearer identifier of the UE.

Abstract: A mobility management apparatus reselection method and a mobility management apparatus are provided. The method includes: receiving an access request message sent from user equipment (UE), where the access request message carries identity information of the UE; determining, according to the identity information of the UE, a type of a mobility management apparatus that the UE needs to access; reselecting a second mobility management apparatus according to the type of the mobility management apparatus that the UE needs to access; and forwarding the access request message to the second mobility management apparatus, so that the second mobility management apparatus executes an access request procedure of the UE. The embodiments of the present invention is applicable to the field of communications technologies.

Abstract: Embodiments of the present invention relate to the communications field, and provide an MEC platform handover method, apparatus, and system. The method includes: receiving a handover notification sent by a handover notification device, where the handover notification device is a source access network device of to-be-handed-over UE or a target MEC platform of the to-be-handed-over UE; determining a TEID of the to-be-handed-over UE according to the handover notification; obtaining context of the to-be-handed-over UE according to the TEID of the to-be-handed-over UE; and sending the context to the target MEC platform. The present invention resolves a problem that provision of application data by an MEC platform to UE is interrupted when the UE is being handed over between access network devices, thereby providing continuous services to the UE. The present invention is applicable to a handover between MEC platforms.

Abstract: Embodiments provide a method for reporting location information of user equipment, and an apparatus. A master access node is provided, including an obtaining module, configured to obtain location information of user equipment, where the location information of the user equipment includes serving cell information of at least one secondary access node of the user equipment. The master access node also includes a sending module, configured to send the location information of the user equipment to a core network node, where the location information is used by the core network node to determine a control policy for the user equipment according to the location information of the user equipment.

Abstract: Embodiments of the present disclosure provide a GTP-U downlink packet sending method and apparatus. The method includes: receiving, by a MEC platform, a GTP-U uplink packet sent by a base station device; obtaining, by the MEC platform, a TEID of the base station device according to the GTP-U uplink packet; and sending, by the MEC platform, a GTP-U downlink packet to the base station device, where the GTP-U downlink packet includes the TEID of the base station device. By using the technical solutions of the embodiments of the present disclosure, after receiving the GTP-U uplink packet sent by the base station device, the MEC platform can obtain the TEID of the base station device according to the GTP-U uplink packet, and therefore, can correctly perform GTP-U encapsulation, and send the GTP-U downlink packet to the base station device.

Abstract: An MME reselection method and an MME are provided, so that UE can use a correct MME in time to execute an access request procedure. The method includes: receiving an access request message sent by user equipment UE, where the access request message carries identity information of the UE (801); determining, according to the identity information of the UE, a type of an MME that the UE needs to access (802); reselecting a second MME according to the type of the MME that the UE needs to access (803); and forwarding the access request message to the second MME, so that the second MME executes an access request procedure of the UE (804). The embodiments of the present invention is applicable to the field of communications technologies.

Abstract: A routing rule obtaining method, device, and system are provided. The method is applied to an MEC system and performed by a data bus controller, including: obtaining service information of at least one service in the MEC system, where service information of each service includes a service type and a service identity; generating a routing rule according to the service information of the at least one service, where the routing rule is used to indicate at least one path through which a data packet can pass; and sending the routing rule to a data bus, so that the data bus forwards, according to the routing rule, a received data packet to a service corresponding to the data packet. The service information of each service is dynamically obtained, so as to update a path indicated in a routing rule.

Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for detecting a terminal device anomaly. A PGW obtains abnormal event triggering information regarding a terminal device, and the abnormal event triggering information includes at least one of the following: an abnormal event condition for the terminal device or configuration information regarding an abnormal event trigger; and the PGW determines, according to the abnormal event triggering information, that an anomaly has occurred in the terminal device, so that when the terminal device has a behavior (for example, the terminal device carries out a service related behavior beyond a specified range or the terminal device is damaged and abnormal) that is indicated by the abnormal event triggering information, the PGW can detect the anomaly of the terminal device, and an administrator of the terminal device can obtain anomaly information regarding the terminal device from the PGW node.

Abstract: The present invention provides a method and an apparatus for removing a policy and charging control rule from a default bearer. The method includes: determining whether a received service flow is a service flow of SRVCC switching upon receipt of flow description information of the service flow; and, if the received service flow is the service flow of the SRVCC switching, removing a policy and charging control rule that has been activated on a default bearer for the SRVCC switching, and at the same time issuing a policy and charging control rule made for a newly created bearer.

Abstract: Embodiments of the present disclosure disclose a method for obtaining user equipment UE information, including: obtaining identification information of UE on an access network; sending request information to a mobility management entity, where the request information includes the identification information of the UE on the access network, so as to request the mobility management entity to return the UE information according to the identification information of the UE on the access network; and obtaining the UE information returned by the mobility management entity. Correspondingly, the embodiments of the present disclosure further disclose an apparatus for obtaining user equipment UE information. According to the present disclosure, UE information of one or some user equipments may be obtained, so that a core network can accordingly control user equipment, thereby improving system processing efficiency.

Abstract: Embodiments of the present invention disclose a bearer handover control device and control method. The method includes: receiving, by a network side device, a bearer handover message; and determining, by the network side device according to the bearer handover message, a bearer needing to be handed over in all bearers, so that an end marker End Marker message is sent to a source base station only for the bearer needing to be handed over. By using the foregoing solutions, for a multi-connection scenario, a network side device can determine a bearer needing to be handed over, so that an end marker message is sent only for the bearer needing to be handed over, which can prevent discarding of subsequent data of a bearer that is not to be handed over, and ensure multiple connections between a UE and base stations, thereby improving stability of a system.