Relay Device Selecting Terminals by Communication Quality
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Solution Overview
Problem
Current communication systems lack a method to effectively select which communication terminals to relay when multiple terminals are within the relay range, potentially leading to unnecessary relaying of terminals with low necessity while neglecting those with high necessity.
Innovation Solution
A communication system with a relay device that includes a selection unit to choose terminals based on communication quality information, a power setting unit to manage transmission power, and a distance estimation unit to optimize signal propagation, ensuring that terminals with poor communication quality are prioritized for relaying and interference is minimized.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a relay device relays communication for all communication terminals within its range, then communication quality for terminals with poor direct connection is improved, but unnecessary relaying occurs for terminals with good direct connection, wasting system resources
Solution Approach 1:
The relay device changes the parameter of relay selection by using communication quality information (such as signal strength, error rate, or quality of service metrics) to dynamically determine which terminals should receive relay services. This parameter-based selection mechanism ensures that relaying resources are allocated based on actual communication needs rather than uniformly to all terminals, thereby improving communication quality for those who need it while avoiding unnecessary energy consumption for terminals with adequate direct connections.
2Productivity
If a relay device prioritizes relaying for terminals with poor communication quality, then communication efficiency for those terminals is improved, but terminals with good direct connection may experience increased interference
Solution Approach 1:
The relay device applies local quality by providing differentiated relay services to different terminals based on their specific communication quality requirements. Instead of uniform relaying, the system tailors the relay operation to each terminal's needs, concentrating relay resources on terminals with poor direct connection quality while minimizing or eliminating relaying for terminals with good direct connections. This localized approach improves communication efficiency for needy terminals while preventing unnecessary interference to others.
3Measurement precision
If communication quality information is collected from all terminals, then accurate selection for relaying is enabled, but communication overhead and system complexity increase
Solution Approach 1:
The system extracts only the essential communication quality information needed for relay selection decisions, rather than collecting and processing all possible terminal parameters. By identifying and extracting the most critical metrics (such as received signal strength indicator, block error rate, or quality of service level), the system achieves accurate relay selection while minimizing communication overhead and processing complexity. This selective information extraction balances measurement precision with system simplicity.
Data Source
AI summary
Provided is a communication system including a plurality of base stations, a plurality of communication terminals that communicates with one of the plurality of base stations, and a relay device, the relay device including a selection unit that selects a communication terminal to be relayed from among the plurality of communication terminals on the basis of communication quality information received from each of the plurality of communication terminals, and a relay unit that relays communication between the communication terminal selected by the selection unit and the corresponding base station.