Terminal Interface Selection for Wireless Traffic Offloading
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Solution Overview
Problem
Existing wireless communication systems fail to efficiently offload traffic based on the type of terminal apparatus, as they do not provide specific control measures using radio access network assistant information.
Innovation Solution
A wireless communication system that includes an RRC control unit and an interface selecting unit in the terminal apparatus, which analyzes broadcasted information from the base station to select an appropriate communication system for data transmission and reception based on threshold information and policy conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If radio access network assistant information is broadcasted to all terminal apparatuses without differentiation, then network coverage is expanded, but traffic offloading efficiency cannot be optimized for specific terminal types
Solution Approach 1:
The patent applies local quality by differentiating the treatment of radio access network assistant information based on terminal apparatus type. The base station broadcasts different sets of assistant information to different terminal groups (e.g., first assistant information to first terminals, second assistant information to second terminals), allowing each terminal type to receive optimized parameters for its specific characteristics, thereby improving offloading efficiency while maintaining network-wide coverage.
2Productivity
If communication system selection is based on generic broadcast information, then system complexity is reduced, but data transmission efficiency cannot be optimized
Solution Approach 1:
The patent segments the broadcast information into different sets tailored to different terminal types. The base station divides assistant information into first radio access network assistant information for first terminal apparatuses and second radio access network assistant information for second terminal apparatuses. This segmentation allows each terminal type to process only the relevant information needed for its optimization, maintaining manageable complexity while significantly improving data transmission efficiency through type-specific parameter selection.
Data Source
AI summary
In a wireless communication system in which information for selecting a communication system is notified from a base station apparatus to a terminal apparatus, the base station apparatus broadcasts broadcast information containing all or part of the information as information for each group, and the terminal apparatus includes an RRC control unit that analyzes a message of an RRC layer and an interface selecting unit that selects a communication system for transmitting and receiving user data. The RRC control unit selects, from the information broadcasted from the base station apparatus as the message of the RRC layer, information on the group to which the terminal apparatus belongs, and the interface selecting unit selects, on the basis of threshold information contained in the information selected, a measured value to be compared with the threshold information, and a policy for communication system selection containing the comparison as a condition, a communication system through which all or part of the user data is transmitted and received.