Control Station Policy Generation for Wireless Terminal Selection
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Solution Overview
Problem
In heterogeneous networks with multiple wireless communication systems, both centralized and autonomous distributed control methods face challenges in selecting an optimal wireless communication system that maximizes performance while minimizing load and calculation time on the control station device, especially when wireless terminal devices move dynamically and the environment changes.
Innovation Solution
A control station device generates and delivers a selection policy indicating the priority order of wireless communication systems to wireless terminal devices, which then select the optimal system based on this policy, reducing the load and calculation time on the control station and ensuring maximum performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If centralized control is used to select wireless communication systems, then optimal system selection is achieved, but the load and calculation time on the control station device increase
Solution Approach 1:
The patent segments the control function by dividing the wireless communication systems into multiple groups and creating corresponding group policies. The control station device generates selection policies for each group rather than managing all systems individually, reducing its calculation burden while maintaining optimal selection capabilities through structured policy organization.
Solution Approach 2:
The control station device performs preliminary actions by pre-calculating and storing selection policies for different wireless communication system groups before they are needed. When a wireless terminal device needs system selection, it can directly apply the pre-computed policies without requiring real-time calculation, thus reducing the control station's instantaneous load and calculation time.
2Device complexity
If autonomous distributed control is used for system selection, then control station load is reduced, but maximum performance cannot be guaranteed
Solution Approach 1:
The patent introduces selection policies as an intermediary mechanism between the control station device and wireless terminal devices. The control station generates these policies based on network conditions and system characteristics, then delivers them to terminal devices which apply them autonomously. This intermediary approach allows the control station to maintain performance optimization capabilities while reducing its direct involvement in real-time selection decisions.
3Measurement precision
If centralized control collects information from all wireless terminal devices, then accurate environment assessment is achieved, but information collection time and processing load increase
Solution Approach 1:
The patent segments information collection by grouping wireless terminal devices according to their service areas and the wireless communication systems they access. The control station collects and processes information in these groups rather than uniformly from all devices, reducing the time required for information collection and processing while maintaining accurate environment assessment through targeted data gathering.
Data Source
AI summary
A control station device includes a policy generation unit that calculates a priority order of a plurality of wireless communication systems having different types of systems on a basis of information acquired from a wireless terminal device that selects one wireless communication system from among the plurality of wireless communication systems to perform wireless communication, and generates a selection policy indicating the priority order of the plurality of wireless communication systems, and a policy delivery unit that delivers the selection policy indicating the priority order of the plurality of wireless communication systems to the wireless terminal device. With this configuration, an optimal wireless communication system that maximizes the performance of each wireless terminal device can be selected while reducing the load and calculation time imposed on the control station device.