Network Selection Policy for Heterogeneous Data Transmission
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Solution Overview
Problem
In heterogeneous network environments, service providers face challenges in controlling network access selection, leading to increased network load and expense due to inefficient data transmission across various wireless communication technologies, such as WLAN, WCDMA, CDMA, WiBro, and LTE, especially with the rise of data-intensive services from devices like smartphones and tablets.
Innovation Solution
A network selection policy is implemented that includes information on accessible network interfaces, allowing devices to dynamically select the most optimal network for data transmission by dividing data into partials and routing them through the best available network interfaces based on performance and state information, using a policy management apparatus to provide priority access information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the terminal device autonomously selects access network among heterogeneous networks, then the ease of operation is improved, but the service provider loses controllability over network selection
Solution Approach 1:
The patent introduces a policy management server as an intermediary between the terminal device and heterogeneous networks. This server provides network selection policies that guide terminal devices on which networks to access, thereby maintaining service provider controllability while still enabling terminal devices to operate autonomously based on received policy instructions rather than random selection
2Productivity
If data service using large amount of data traffic is provided, then the productivity is improved, but the network load and expense increase
Solution Approach 1:
The patent applies local quality by providing different network selection policies to different terminal devices based on their specific locations, device types, and service requirements. The policy management server analyzes local network conditions and device characteristics to optimize data transmission paths, thereby enabling high data traffic productivity while minimizing network load and expense through location-specific and device-specific optimization
Solution Approach 2:
The patent implements dynamics by making network selection policies adaptive and changeable based on real-time network conditions, device states, and service requirements. The policy management server can dynamically update policies for terminal devices, allowing the system to optimize data transmission in response to changing conditions, thereby managing network load efficiently while supporting high productivity data services
3Adaptability or versatility
If network selection policy is provided to terminal device, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent applies partial action by providing terminal devices with network selection policies that contain only the necessary information needed for their specific operations, rather than complete network management control. The policies guide terminal devices on which networks to access without requiring them to implement complex policy management functions, thereby improving adaptability while keeping device complexity manageable through selective information provision
Data Source
AI summary
A heterogeneous network based simultaneous data transmission service method can effectively control the access of a terminal device to an optimum network interface at a current location to thereby implement an effective and highly reliable heterogeneous network based simultaneous data transmission service.