Communication network realized by network architecture based on separation of control surfaces and media surface

Abstract

The invention relates to a communication network realized by a network architecture based on the separation of control surfaces and media surface. The communication network comprises a radio access network, an access node which is connected between the radio access network and a packet data network and is used for data switching, and a mobility management node connected with the access node and the radio access network. The communication network also comprises an identity location register (ILR)and the packet data network which are connected with the access node, wherein the access node provides an access service for a terminal, distributes a route mart directing to the access node for the terminal, maintains the mapping information of the terminal and a correspondence node, registers on an ILR in the terminal location, unregisters and queries the RID of the terminal and realizes the routing and forwarding of the data message; the ILR is used for receiving a registration request and an unregistration request of the ILR home user terminal, maintaining the AID-RID mapping information of the home user terminal and returning the RID corresponding to the AID of the terminal in the request to the party sending a query request after receiving the search request about the RID of the terminal. The communication network can avoid alternate routing and does not change the application context of the terminal.

Description

technical field

[0001] The present invention relates to a network architecture in the field of communication technology, in particular to a communication network realized based on a network architecture in which a control plane and a media plane are separated. Background technique

[0002] The 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as 3GPP) evolved packet system (referred to as EPS) by the evolved universal mobile communication system terrestrial radio access network (referred to as Evolved Universal Terrestrial Radio Access Network, referred to as E-UTRAN), Mobility Management Entity (MME for short), Serving Gateway (S-GW), Packet Data Network Gateway (P-GW or PDN GW for short), belonging A user server (Home Subscriber Server, referred to as HSS), a 3GPP Authentication, Authorization and Accounting (referred to as AAA) server, a policy and charging rules function (Policy and Charging Rules Function, referred to as PCRF) entity an...

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