Control Plane Server for Mobile Network Service Offloading
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mobile communication networks face challenges in efficiently offloading data traffic from overloaded interfaces between eNodeB, S-GW, and PDN-GW, leading to service drops and high costs due to the need for additional high-capacity gateways, especially when femto cells are overloaded.
Innovation Solution
A method and architecture that divert user data to a public wired network via a Home eNodeB, selectively supporting LIPA and SIPTO services, allowing data to bypass the mobile communication service provider's network, thereby reducing network congestion and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If additional high-capacity gateways are deployed to handle overloaded traffic, then network capacity is improved, but infrastructure cost increases dramatically
Solution Approach 1:
The patent extracts the user plane function from the core network gateway and relocates it to the access network side (eNodeB). This allows traffic to be processed locally at the eNodeB without passing through the overloaded S-GW and P-GW, effectively removing the bottleneck while avoiding the need for additional high-capacity gateway infrastructure.
Solution Approach 2:
The patent introduces a new architectural dimension by implementing a dual-plane structure where the control plane remains centralized in the core network while the user plane is distributed to the access network. This dimensional separation enables independent optimization of each plane, allowing traffic offloading without requiring additional core network gateway capacity.
2Productivity
If traffic is offloaded to public wired network via Home eNodeB, then network congestion is reduced, but control complexity increases
Solution Approach 1:
The patent segments the gateway function into two independent parts: control plane functions remain in the core network (MME), while user plane functions are extracted and placed at the eNodeB. This segmentation allows each component to operate independently with simplified control logic, reducing overall system complexity despite the distributed architecture.
Solution Approach 2:
The patent introduces a local gateway function at the eNodeB that acts as an intermediary between the mobile network and the public wired network. This local intermediary handles traffic routing and protocol adaptation locally, reducing the control burden on the core network while maintaining network efficiency through localized decision-making.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention provides a method for enabling a server for a control plane to control a service in a mobile communication network. The control method can include a step of receiving a first message including an access point name (APN), a parameter for indicating an identifier of a local gateway and/or a selected IP traffic offload (SIPTO) service indicator from a Home (e)Node B. the first message can include a request message of a terminal. The control method can include a step of determining whether the SIPTO can be applied to data of the terminal based on the APN within the first message if the Home (e)Node B can provide the SIPTO service on the basis of the received first message. The step for determining is for determining whether the SIPTO can be applied to the APN included in the first message on the basis of the information related to the APN. The control method includes a further step of determining whether the SIPTO service can be provided for the terminal on the basis of user agreement information for a SIPTO service if the SIPTO can be applied to the data of the terminal; and a step of transmitting a SIPTO service notification to the Home (e)Node B according to the further decision.