Dynamic Access Network Selection via Fake Measurement Reports
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Solution Overview
Problem
Current mobile communication systems face challenges in dynamically selecting the most suitable access network based on user preferences and service types, leading to network overload and service quality issues when a large number of 4G-preferred terminals gather in specific areas, especially for services generating small traffic.
Innovation Solution
A method and apparatus for dynamically selecting an access network by detecting events triggering access network reselection, generating a fake measurement report message indicating a weaker radio channel measurement result of the source access network compared to a target access network, and performing a handover to the target access network, allowing for dynamic selection based on service types and traffic amounts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If terminals select access networks in predetermined order based on priority (4G > 3G > 2G), then network selection simplicity is improved, but network overload occurs when many terminals gather in specific areas
Solution Approach 1:
The patent implements dynamic access network selection by allowing terminals to change network attachment based on service types and traffic conditions rather than following fixed priority rules. The network controller dynamically assigns terminals to appropriate networks (2G, 3G, or 4G) based on real-time service requirements and network load, resolving the contradiction between simple selection and reliable service delivery.
2Device complexity
If terminals maintain attachment to high-priority access network as long as coverage is maintained, then network switching complexity is reduced, but service quality deteriorates under network overload
Solution Approach 1:
The patent introduces a feedback mechanism where the network controller monitors service types, traffic amounts, and network load conditions, then dynamically adjusts terminal attachments. The controller receives information about terminal services and actively manages network selection, providing feedback loops that balance switching complexity with service quality by moving terminals between networks based on real-time conditions.
3Reliability
If dynamic access network selection is implemented based on service types and traffic amounts, then service quality is improved, but network selection complexity increases
Solution Approach 1:
The patent introduces a network controller as an intermediary that centralizes the complex decision-making process for access network selection. Instead of requiring complex logic in each terminal, the controller acts as a mediator that receives service type and traffic amount information, then makes centralized decisions about which network (2G, 3G, or 4G) each terminal should attach to, reducing terminal complexity while maintaining service quality.
Data Source
AI summary
An access network selection method and apparatus is provided for selecting an access network dynamically in a wireless communication system. The access network selection method of a terminal in a wireless communication system supporting attach to at least two access networks simultaneously in a same area according to the present disclosure includes detecting an event triggering access network reselection of the terminal; selecting a target access network for the terminal to move; generating a fake measurement report message including a radio channel measurement result of a source access network is weaker than a radio channel measurement result of the target access network; and performing handover to the target access network by transmitting the fake measurement report message.