Method for establishing load, MME, PCRF and user terminal

Abstract

The invention discloses a method for establishing a load, a mobility management entity, a strategy functional entity, and a user terminal embodiment. The method for establishing a load comprises the steps: an attach request indicating an IMS service is received; an IMS service indication is an access point name when the access point name is only used for indicating the IMS service; an IMS signaling mark and / or a P-CSCF address request are also included in the attach request under the condition that the access point name is used for indicating the IMS service and other services, and the IMS service indication package comprises the access point name and the IMS signaling mark and / or the P-CSCF address request; a corresponding load is established according to subscription information corresponding to the IMS service and SAE subscription information. The invention can establish the load which accords with the requirement of the IMS service, thereby saving network resources.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for establishing a bearer, a mobility management entity, a policy function entity and a user terminal. Background technique [0002] The 3rd Generation Partner Project (3rd Generation Partner Project, 3GPP) proposes a system architecture evolution (System Architecture Evolution, SAE) project. The network structure of SAE is as follows figure 1 shown. figure 1 Among them, the Mobility Management Entity (MME) is located in the core network, and is responsible for mobility management. , authentication, etc. The SGW is responsible for the transmission, forwarding and route switching of user equipment (UE) user plane data. The PDN-GW is mainly responsible for connecting with the PDN network, allocating an IP address for the UE, and so on. The Policy and Charging Rules Function (Policy and Charging Rules Function, PCRF) entity is responsible for gener...

AI Technical Summary

Problems solved by technology

In this way, if the IMS service requested by the UE needs to establish a default bearer in the homerouted manner, the default bearer established in the local breakout manner in the prior art will not meet the requirements. In this case, the vPDN-GW in the roaming location needs to be removed and establish a bearer with the home hPDN-GW

This process of bearer removal and reconstruction will cause waste of resources, and at the same time, the session establishment time will be prolonged and user experience will be deteriorated.

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