Abstract: This application relates to a communication method and apparatus. The method includes: A first SMF network element receives first information from a PCF network element, where the first information includes an identifier of a first dedicated data network to which a terminal device subscribes; the first SMF network element sends a first request including the identifier of the first dedicated data network to a second SMF network element that supports the first dedicated data network; the first SMF network element receives, from the second SMF network element, a first response including second tunnel information of a second UPF network element, where the second UPF network element is a UPF network element selected based on the first dedicated data network; and the first SMF network element sends second information to a first UPF network element, where the second information includes the second tunnel information and a first traffic steering rule.

Abstract: The application relates to a route delivery method and device. A location information of user equipment UE is received by a control plane network element device. A client IP address used by the control plane network element device to access a third-party server is determined based on the location information by the control plane network element device. An access request message is sent by the control plane network element device to the third-party server carrying the client IP address. A UE IP address assigned by the third-party server to the UE based on the client IP address is received by the control plane network element device. A user plane network element device configured to deliver a route to the UE is determined based on the UE IP address and the location information by the control plane network element device.

Abstract: The application relates to a route delivery method and device. A location information of user equipment UE is received by a control plane network element device. A client IP address used by the control plane network element device to access a third-party server is determined based on the location information by the control plane network element device. An access request message is sent by the control plane network element device to the third-party server carrying the client IP address. A UE IP address assigned by the third-party server to the UE based on the client IP address is received by the control plane network element device. A user plane network element device configured to deliver a route to the UE is determined based on the UE IP address and the location information by the control plane network element device.

Abstract: The present invention provides a network device and a method for allocating an access point name. The network device includes: a receiving module, configured to receive a user activation request sent by user equipment UE, where the user activation request includes user location information ULI; a parsing module, configured to parse the ULI received by the receiving module, to acquire an area code of a location of the UE; a determining module, configured to determine an area code set to which the area code acquired by the parsing module belongs; and an acquiring module, configured to acquire, according to a mapping relationship between the area code and an actual access point name APN, the actual APN for the UE. The embodiments of the present invention can implement centralized management on UE based on a geographical area range.

Abstract: The present disclosure discloses a service processing method and device. In this way, when determining that an exception occurs in the packet data network gateway (PGW), the serving gateway (SGW) no longer needs to send the fact that an exception occurs in the PGW to the mobility management entity (MME), thereby reducing a signaling transmission amount in a system, and simplifying a service processing procedure. Moreover, because different deletion policies are used, service processing is accelerated, service processing efficiency of the system is further improved, and user experience is improved.

Abstract: The present invention provides an IP address assignment apparatus and method. A packet data gateway receives a connection establishment request that is sent by a mobility management network element and that carries user location information, assigns an IP address to the terminal according to a correspondence between the user location information and an IP address pool, and feeds back the IP address to the mobility management network element. In the present invention, effects that the packet data gateway can assign an IP address according to a location of a terminal, and different IP addresses are assigned at different regions are achieved.

Abstract: The present invention provides a network device and a method for allocating an access point name. The network device includes: a receiving module, configured to receive a user activation request sent by user equipment UE, where the user activation request includes user location information ULI; a parsing module, configured to parse the ULI received by the receiving module, to acquire an area code of a location of the UE; a determining module, configured to determine an area code set to which the area code acquired by the parsing module belongs; and an acquiring module, configured to acquire, according to a mapping relationship between the area code and an actual access point name APN, the actual APN for the UE. The embodiments of the present invention can implement centralized management on UE based on a geographical area range.

Abstract: The present invention provides an IP address assignment apparatus and method. A packet data gateway receives a connection establishment request that is sent by a mobility management network element and that carries user location information, assigns an IP address to the terminal according to a correspondence between the user location information and an IP address pool, and feeds back the IP address to the mobility management network element. In the present invention, effects that the packet data gateway can assign an IP address according to a location of a terminal, and different IP addresses are assigned at different regions are achieved.

Abstract: The present disclosure discloses a service processing method and device. In this way, when determining that an exception occurs in the packet data network gateway (PGW), the serving gateway (SGW) no longer needs to send the fact that an exception occurs in the PGW to the mobility management entity (MME), thereby reducing a signaling transmission amount in a system, and simplifying a service processing procedure. Moreover, because different deletion policies are used, service processing is accelerated, service processing efficiency of the system is further improved, and user experience is improved.

Abstract: The present invention discloses a session processing method and an apparatus, and relates to the field of communications technologies. The method includes: acquiring an interruption detection instruction; performing traffic interruption detection on a target MBMS session according to the interruption detection instruction; and releasing, when it is detected that traffic of the target MBMS session is interrupted, resources occupied by the target MBMS session.