Integrated SGW PGW Gateway for Multi-PDN Connection Efficiency
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Solution Overview
Problem
Current communication systems face inefficiencies in signal processing when establishing multiple PDN connections, particularly in the integration of user plane and control plane gateways, which affects the overall performance and resource utilization.
Innovation Solution
A communication system is designed with a user plane gateway and a control plane gateway separated from each other, where the control plane gateway selects the user plane gateway based on location information and APN, and both are integrated to form a unified SGW and PGW, optimizing the number of tunnels and reducing unnecessary protocol conversions and synchronization processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a plurality of PDN connections are established through separate SGW and PGW gateways, then connection versatility is improved, but signal processing efficiency deteriorates due to multiple tunnels and protocol conversions
Solution Approach 1:
The patent merges the SGW and PGW gateways into a single integrated gateway apparatus. This consolidation eliminates the need for separate tunnel establishments between distinct SGW and PGW entities, reducing the number of tunnels from multiple to a single unified tunnel structure. The integration removes protocol conversion requirements between separate gateway interfaces, thereby improving signal processing efficiency while maintaining the capability to establish multiple PDN connections through the unified gateway.
2Productivity
If SGW and PGW are integrally formed in a single gateway, then signal processing efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by separating the control plane and user plane functions within the integrated gateway. The gateway is divided into distinct control plane entities (such as MME, SGW-C, PGW-C) and user plane entities (such as SGW-U, PGW-U). This functional segmentation allows the gateway to maintain complex multi-PDN connection capabilities through dedicated control plane processing while simplifying the user plane to a single efficient tunnel structure, thus managing device complexity through modular functional separation.
3Adaptability or versatility
If multiple tunnels are established between SGW and PGW for multiple PDN connections, then connection versatility is improved, but loss of time increases due to synchronization requirements
Solution Approach 1:
The patent merges multiple tunnel functions into a single unified tunnel within the integrated gateway. Instead of establishing separate tunnels between distinct SGW and PGW instances for each PDN connection, the unified gateway creates a single tunnel structure that handles multiple PDN connections internally. This eliminates the need for complex synchronization mechanisms between separate gateway entities, reducing time loss while preserving the ability to manage multiple PDN connections through the single gateway interface.
Data Source
AI summary
A communication system capable of improving signal processing efficiency even when a plurality of connections are established is provided. A communication system according to the present invention includes a user plane PGW (14) configured to connect to a PDN, a user plane SGW (12) configured to relay user plane data between the user plane PGW (14) and a base station (34), and a control plane SGW (30). Further, the communication system includes a control apparatus (32) configured to, when a plurality of connections are established for the communication terminal (36), transmit information indicating that the user plane PGW (14) and the user plane SGW (12) can be integrally configured to the control plane SGW (30) for each of the plurality of connections.