Core Network UPE Service Area Management for Mobile Terminals
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Solution Overview
Problem
The existing mobile communication systems face challenges in defining and limiting the administrative scope of User Plane Entities (UPEs) to reduce the frequency of UPE relocations, especially when user equipment (UEs) are in active mode, as current methods lead to complex relocation procedures and potential service degradation.
Innovation Solution
The system introduces flexible service areas for UPEs, allowing for configurable administrative scopes based on idle and active mode service areas, which manage UE connections and relocations differently depending on the UE's state, and employs vendor-specific algorithms for selecting the next UPE based on load and mobility predictions to minimize unnecessary relocations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the administrative scope of UPEs is limited to a portion of PLMN, then user data communication efficiency is improved, but the frequency of UPE relocations increases
Solution Approach 1:
The patent applies local quality by differentiating service area definitions between idle mode and active mode UEs. Idle mode UEs have a first service area with stricter administrative scope limitations, while active mode UEs have a second service area with more flexible coverage. This localized differentiation allows the system to optimize for communication efficiency in idle mode while maintaining connection stability in active mode, thereby reducing unnecessary relocations during active communication.
Solution Approach 2:
The patent implements dynamics by making the service area definition adaptive based on UE state. The system dynamically adjusts the administrative scope parameters according to whether the UE is in idle or active mode, allowing the service area boundaries to flexibly accommodate different operational requirements. This dynamic approach prevents forced relocations during active mode while still enabling efficient resource allocation in idle mode.
2Adaptability or versatility
If UPE relocation is performed in active mode, then connection flexibility is improved, but relocation procedure complexity increases
Solution Approach 1:
The patent applies preliminary anti-action by preventing UPE relocation during active mode through the definition of the second service area. By establishing this service area with relaxed administrative scope limitations for active mode UEs, the system proactively avoids the need for complex relocation procedures while maintaining connection flexibility. The preliminary configuration of different service area parameters based on UE state prevents the harmful effect of unnecessary relocations before they occur.
3Productivity
If the first service area has strict administrative scope limitation, then network resource allocation is optimized, but UE mobility coverage is reduced
Solution Approach 1:
The patent applies local quality by implementing different service area characteristics for different UE states. The first service area for idle mode UEs has strict administrative scope limitations that optimize network resource allocation, while the second service area for active mode UEs has expanded coverage to maintain mobility adaptability. This localized differentiation ensures that resource optimization is achieved where it matters most (idle mode) while preserving user experience (active mode).
Solution Approach 2:
The patent implements dynamics by making service area coverage adaptive to UE state. When a UE transitions to active mode, the system dynamically expands the effective service area coverage to maintain connectivity. This dynamic adjustment allows the network to enforce strict resource allocation in idle mode while automatically providing broader coverage when mobility is required, thus balancing both objectives.
Data Source
AI summary
A mobile communication system for relaying user data includes a plurality of base station apparatus and a core network apparatus. Each of the base station apparatus forms a cell for connecting to a terminal through a wireless link. The core network apparatus can be connected to the base station apparatus. Even when the terminal moves between the base station apparatus while the terminal is in an active mode in which the terminal is communicating, the core network apparatus which is connected to the terminal keeps itself connected to the terminal.