Mobility Management Entity Session Control for Out-of-Area UEs
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Solution Overview
Problem
Current mobile communication networks face challenges in effectively managing sessions for User Equipments (UEs) that have moved out of allowed areas, leading to unnecessary data transmission and resource wastage due to ineffective session management.
Innovation Solution
A session management method where a mobility management functional entity judges whether a UE has moved out of an allowed area, determines a management message, and transmits it to a session management functional entity to delete, update, or switch the session, thereby preventing unnecessary data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network continues to provide services to a UE that has moved out of the allowed area, then the UE can maintain network connectivity, but unnecessary data transmission and resource wastage occur
Solution Approach 1:
The network performs preliminary session deletion or update actions when detecting that a UE has moved out of the allowed area, before unnecessary data transmission occurs. The mobility management functional entity proactively manages session state changes based on location information, preventing resource wastage while maintaining connectivity for UEs within the allowed area.
2Loss of energy
If the network deletes or updates sessions when a UE moves out of the allowed area, then resource wastage is prevented, but data transmission and connection resources are wasted if the session is not properly managed
Solution Approach 1:
The system implements feedback mechanisms where the mobility management functional entity receives location information about UEs and provides corresponding session management actions. When location information indicates a UE has moved out of the allowed area, the system feedbacks session deletion or update commands to the session management functional entity, ensuring proper session state management and preventing resource wastage.
3Measurement precision
If the network monitors UE location to manage sessions effectively, then session management accuracy is improved, but system complexity increases
Solution Approach 1:
The patent introduces a mobility management functional entity as an intermediary between location monitoring and session management functions. This intermediary receives location information, determines whether UEs have moved out of allowed areas, and generates appropriate session management commands. This modular approach improves session management accuracy while managing system complexity through functional separation.
Data Source
AI summary
The present disclosure provides a session management method, a mobility management functional entity and a session management functional entity. The session management method includes: judging, by a mobility management functional entity, whether a UE has moved out of an allowed area; when the UE has moved out of the allowed area, determining, by the mobility management functional entity, a management message for a session of the UE; and transmitting, by the mobility management functional entity, the management message to a session management functional entity for serving the UE. The management message is adopted to trigger the session management functional entity to manage the session of the UE.