Abstract:
The present application discloses a method, device, and system for selecting a user plane functional entity supporting non-3GPP access ensure service continuity. When a user equipment (UE) performs access via a 3GPP network, subscription data of the UE are obtained by a CP functional entity. The subscription data include indication information that indicates whether the UE is allowed to connect to a non-3GPP network. If the indication information indicates that the UE is allowed to connect to the non-3GPP network, a target UP functional entity supporting the non-3GPP access is selected by the CP functional entity. The present application is applicable to the field of communications technologies.
Abstract:
Embodiments of the present invention provide a service processing method, a related apparatus, and a system. The method includes: UE adds a service type indication of a service initiated by the UE to an RRC connection request and sends the RRC connection request to a base station, and adds the service type indication of the service initiated by the UE to a non-access stratum NAS request and sends the NAS request to a mobility management network element. In this way, when a network side performs congestion control or overload control, the base station may determine, according to the service type indication, that the service initiated by the UE is a voice service, a video service, or a short message service, accept the RRC connection request. Similarly, the mobility management network element may accept, according to the service type indication, the NAS request.
Abstract:
Embodiments of the present invention provide a failure handling method, a packet data network, a mobility management entity, and a network system. The failure handling method includes: receiving, by a packet data network gateway P-GW, downlink data after detecting that a failure occurs in an associated first S-GW; and sending, by the P-GW, a notification message to a mobility management entity MME by using a second S-GW, where the notification message includes an identifier of the P-GW and an identifier of a user, so that when determining that the identifier of the P-GW included in the notification message is different from a P-GW identifier corresponding to a context identifier of the user, the MME refuses to initiate a procedure for recovering from the failure in the first S-GW. The embodiments of the present invention can prevent a failure recovery procedure from being executed multiple times, and lighten signaling load.