Relay UE Priority-Based Physical Channel Parameter Allocation
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Solution Overview
Problem
Current public safety networks face challenges in reliability and efficiency due to their reliance on outdated 2G technologies, particularly in transmitting high-priority information from narrow-band remote UE devices, which can lead to unnecessary retransmissions and increased battery consumption.
Innovation Solution
A method where a relay UE determines and prioritizes information transmission based on different physical channel parameters, such as beta offset, power allocation, and modulation and coding schemes, to ensure high reliability and efficient transmission of high-priority information from narrow-band remote UE devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 2G technology is used for public safety networks, then existing communication standards are maintained and cost is reduced, but reliability and efficiency of high-priority information transmission deteriorate
Solution Approach 1:
The patent changes the physical channel parameters (beta offset values, power allocation, modulation and coding schemes) based on information priority levels. High-priority information is transmitted with optimized parameters that ensure reliable delivery, while lower-priority information uses standard parameters. This resolves the contradiction by improving reliability for critical transmissions without requiring a complete network overhaul.
Solution Approach 2:
The patent segments information into different priority levels (high-priority and normal-priority) and applies different transmission parameters to each segment. This segmentation allows the system to focus resources on critical information while maintaining compatibility with existing 2G infrastructure for non-critical transmissions, thus improving reliability where needed without increasing overall system complexity.
2Reliability
If high-priority information is transmitted with enhanced parameters, then transmission reliability is improved, but resource consumption and battery usage increase
Solution Approach 1:
The patent applies enhanced transmission parameters (higher beta offset values, increased power allocation, more robust modulation and coding schemes) only locally to high-priority information transmissions, while normal-priority information uses standard parameters. This localized enhancement improves reliability for critical data without unnecessarily consuming additional battery resources for all transmissions.
Solution Approach 2:
The patent applies enhanced parameters selectively and partially only when needed for high-priority information, rather than continuously for all transmissions. This partial action approach ensures that the additional energy consumption is minimized and only occurs when it serves a critical function, thus resolving the contradiction between reliability improvement and battery conservation.
3Productivity
If different physical channel parameters are applied based on priority, then transmission efficiency is improved, but system complexity increases
Solution Approach 1:
The patent systematically changes physical channel parameters based on information priority classification. The base station and mobile stations use predefined parameter sets associated with different priority levels, which simplifies the management complexity while maintaining transmission efficiency. The parameter changes are rule-based and automated, reducing the burden on system complexity.
Solution Approach 2:
The patent establishes preliminary associations between information priority levels and specific physical channel parameter sets before transmission occurs. This preliminary configuration allows the system to efficiently select appropriate parameters without real-time complex calculations, thus improving transmission efficiency while keeping the parameter management system relatively simple and rule-driven.
Data Source
AI summary
The present invention provides a method by which a relay terminal determines priority in a wireless communication system including a base station, the relay terminal, and a remote terminal, the method comprising: acquiring remote terminal related information; acquiring the remote terminal related information, and then determining the priority between pieces of the remote terminal related information and the priority between the remote terminal related information and relay terminal related information; and transmitting the information on the basis of the priority, wherein the relay terminal transmits, on the basis of the priority determined by the relay terminal, the information by applying different physical channel parameters.