Partial Handover Control for Multi-Service Mobile Units
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Solution Overview
Problem
Current handover methods in wireless communication systems often lead to quality of service issues due to the introduction of diverse networks with varying capabilities and capacities, resulting in suboptimal service experiences for users as all connections are typically transferred to a new network, rather than selectively optimizing service distribution across available networks.
Innovation Solution
An apparatus and method for controlling handovers in wireless communication systems, where a network unit determines the need for and instructs a mobile unit to transfer specific service connections to a new network based on load, radio capabilities, and service quality, allowing partial handovers to optimize service distribution and maintain high-quality connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all service connections are transferred to a new network during handover, then the mobile unit can maintain service continuity, but the service quality deteriorates due to network load and capacity mismatches
Solution Approach 1:
The patent segments service connections into different categories (e.g., voice connections and data connections) and applies different handover strategies to each segment. Voice connections are retained on the original network while data connections are transferred to the new network, allowing optimized service quality for each connection type rather than treating all connections uniformly.
Solution Approach 2:
The patent applies different quality standards and network selection criteria to different service connections based on their specific requirements. Voice connections require high reliability and are kept on the original network, while data connections benefit from the new network's capabilities, achieving local optimization of service quality for each connection type.
2Manufacturing precision
If selective handover of part of service connections is implemented, then service quality improves, but the handover control complexity increases
Solution Approach 1:
The patent implements dynamic handover control where the network element adaptively determines which service connections to transfer based on real-time network conditions, service types, and user requirements. This dynamic approach allows the system to optimize service quality without requiring complex static configurations, as the handover decisions are made flexibly based on current system state.
Solution Approach 2:
The patent introduces a network element as an intermediary that centralizes the complex handover decision-making process. This intermediary receives information about service connections, evaluates network conditions, and determines optimal handover strategies, thereby managing the complexity centrally rather than requiring complex logic in each mobile unit.
3Adaptability or versatility
If diverse networks with varying capabilities are introduced, then service versatility improves, but quality of service deteriorates due to incompatible handover methods
Solution Approach 1:
The patent implements a universal handover control mechanism that can handle multiple service connection types across diverse networks. The network element evaluates each service connection individually and applies appropriate handover strategies based on the specific network capabilities and service requirements, allowing the system to universally support various services while maintaining quality through customized handling of each connection type.
Data Source
AI summary
A method for controlling a handover and an apparatus are provided. The apparatus includes an interface to communicate with mobile units and a processing unit to determine a need for a mobile unit having more than one ongoing service connection to execute a handover and to send a handover command to the mobile unit through the interface, the handover command instructing the mobile unit to handover part of the ongoing service connections to a new network.