Heterogeneous Network User Detachment Mechanism
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Solution Overview
Problem
Current network technologies lack a specific method for user detachment when handovers or changes occur in heterogeneous networks, particularly between 3GPP and non-3GPP networks, leading to inefficient resource management and network resource wastage.
Innovation Solution
A method and system for user detachment in heterogeneous networks involve determining whether to detach the user from the source network, either by the network element or the user itself, upon handover or change, by acquiring terminal capability and access policy information to manage bearer resources and mobility management contexts effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If user detachment method is not implemented in heterogeneous network handover, then network compatibility and flexibility are maintained, but network resource utilization deteriorates and resource wastage occurs
Solution Approach 1:
The patent implements preliminary detachment actions by determining whether to detach the user from the source network before or during the handover process. The network element or user equipment acquires terminal capability and access policy information in advance to make detachment decisions, ensuring that network resources are released proactively rather than left wasted after handover completion.
2Productivity
If user detachment is performed during handover, then network resource efficiency is improved, but network complexity and detachment decision-making complexity increase
Solution Approach 1:
The patent enables self-service detachment by allowing the user equipment to autonomously determine whether to detach from the source network based on acquired terminal capability and access policy information. This self-determination mechanism reduces the burden on network elements and simplifies the overall detachment decision-making process while maintaining high network efficiency.
Solution Approach 2:
The patent introduces an intermediary detachment determination mechanism where terminal capability information and access policy information serve as mediators between the handover process and detachment execution. These intermediaries provide structured criteria for detachment decisions, reducing complexity by transforming unstructured network state assessment into systematic information-based decisions.
3Measurement precision
If terminal capability and access policy information are acquired for detachment determination, then detachment accuracy is improved, but information processing time and overhead increase
Solution Approach 1:
The patent applies preliminary action by acquiring terminal capability information and access policy information before the handover execution phase. This advance acquisition ensures that detachment decisions are made with complete information, improving accuracy without adding delays during the critical handover moment, as the information gathering occurs in preparation phases.
Data Source
AI summary
A method for user detachment when a handover or change occurs in a heterogeneous network is provided. The method includes: a user equipment (UE) is handed over or switched from a source network to a target network; a network element on a network side determines whether to detach the UE from the source network, and if yes, the network element on the network side detaches the UE from the source network. A system and a device for user detachment when a handover or change occurs in a heterogeneous network, and another method for user detachment when a handover or change occurs in a heterogeneous network are also provided.