Wireless Communication System Priority-Based Retransmission Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication systems face challenges in improving wireless frame arrival probability reliability while minimizing redundant communication resources, as they often consume excessive resources and may experience increased frame loss probabilities, especially when using multiple frequency bands simultaneously.
Innovation Solution
A wireless communication system where multiple wireless communication apparatuses transmit frame retransmission information to a control apparatus, which determines priorities based on communication cost and loss probability, selectively starting transmission from apparatuses with higher priorities to optimize resource use and reduce redundant communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant communication is performed using multiple frequency bands simultaneously, then wireless frame arrival probability reliability is improved, but wireless communication resources are consumed excessively
Solution Approach 1:
The system dynamically changes transmission parameters including frequency band selection, number of retransmissions, and transmission power based on channel conditions and priority levels. This allows optimal resource utilization while maintaining reliability requirements for different types of traffic.
Solution Approach 2:
The system implements feedback mechanisms where transmission outcomes are monitored and used to adjust subsequent transmission decisions. The base station receives acknowledgment information from terminals and adjusts retransmission strategies accordingly, optimizing resource usage while ensuring reliable delivery.
2Reliability
If a single wireless access method is used, then device complexity is reduced, but wireless frame arrival probability reliability is insufficient
Solution Approach 1:
The system segments traffic into different priority levels and applies different transmission strategies to each segment. High-priority traffic receives more aggressive retransmission and resource allocation, while low-priority traffic uses more conservative approaches, optimizing overall system reliability without requiring all apparatuses to implement all access methods.
Solution Approach 2:
The system dynamically selects and switches between different wireless access methods and frequency bands based on current channel conditions, traffic priorities, and system state. This dynamic adaptation allows the system to achieve high reliability when needed while reducing complexity when conditions permit.
3Reliability
If the number of retransmissions is increased, then wireless frame arrival probability is improved, but wireless frame loss probability is increased due to extra communication
Solution Approach 1:
The system applies partial retransmission strategies where not all transmitted frames require full retransmission sequences. Instead, selective retransmission based on priority and channel conditions is implemented, avoiding the excessive communication that would increase loss probability while still achieving required arrival probabilities.
Data Source
AI summary
A wireless communication system includes a plurality of wireless communication apparatuses that transmit a wireless frame to a terminal, and a control apparatus, and the wireless communication apparatus transmits information representing the number of retransmissions of the wireless frame to the control apparatus, and the control apparatus acquires the information representing the number of retransmissions of the wireless frame, selects the wireless communication apparatus in accordance with the number of retransmissions, and causes the selected wireless communication apparatus to start transmitting the wireless frame.