Wireless Communication Device Frequency Channel Grouping
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Solution Overview
Problem
Existing wireless communication systems face challenges in maintaining effective data communication between devices with varying reception performance levels, leading to limited communicative ranges and increased costs due to the need for multiple base stations.
Innovation Solution
A wireless communication device that classifies frequency channels into groups and selects the appropriate channel for data transmission based on reception power thresholds and other conditions, such as positional information and battery status, to optimize communication range and reduce the number of required base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If devices with different reception performance levels communicate using conventional wireless transmission, then data communication is realizable, but the device with low reception performance has a relatively narrow communicative range
Solution Approach 1:
The frequency channels are segmented into multiple groups (first group, second group, third group) with different characteristics. The control unit selectively switches between groups based on reception power conditions, allowing the system to overcome the limited communicative range of low-performance devices by transitioning to frequency groups that provide better reception characteristics.
Solution Approach 2:
The system changes the frequency channel parameter dynamically by switching between different frequency groups. When reception power on the current frequency group falls below a threshold, the control unit transitions to another frequency group, thereby adapting the communication parameters to maintain reliable data transmission across varying reception conditions and extend the effective communicative range.
2Reliability
If multiple base stations are deployed to extend communication range, then data communication reliability improves, but system costs increase
Solution Approach 1:
Existing base stations are made multi-functional by enabling them to transmit and process signals across multiple frequency groups. Instead of requiring separate base stations for different reception performance levels, a single base station can adaptively serve both high-performance and low-performance devices by switching between frequency groups, thereby reducing the total quantity of base stations needed while maintaining communication reliability.
Solution Approach 2:
The frequency group switching mechanism acts as an intermediary that bridges the gap between devices with different reception performance levels. By introducing this intermediate layer of frequency adaptation, the system can maintain reliable communication without requiring additional infrastructure, thus avoiding the cost increase associated with deploying more base stations.
3Adaptability or versatility
If frequency channels are used without classification into groups, then system complexity is low, but adaptability to different reception performance levels is poor
Solution Approach 1:
Frequency channels are segmented into distinct groups with different characteristics suitable for different reception performance levels. This segmentation provides a structured approach to adaptability, where each frequency group can be optimized for specific reception conditions, thereby improving versatility without creating excessive complexity through random or unorganized frequency selection.
Solution Approach 2:
The system implements dynamic frequency group switching based on real-time reception power conditions. The control unit monitors reception power and automatically transitions between frequency groups when thresholds are exceeded, providing adaptive behavior that responds to changing communication conditions. This dynamic approach enhances adaptability while keeping the control logic relatively simple through threshold-based decision making.
Data Source
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AI summary
Appropriate data communication is realized. A wireless communication device includes a communication unit and a control unit. The communication unit included in the device performs data transmission to a different device via one of frequency channels classified into a plurality of groups that includes a first group and a second group. On the other hand, the control unit detects a reference signal transmitted from the different device via one of the frequency channels belonging to the first group. The control unit further selects one of the frequency channels for the data transmission from the first group or the second group on the basis of a result of detection of the reference signal.