Wireless Relay Device Dynamic Multi-Hop Single-Hop Switching
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Solution Overview
Problem
Current wireless multi-hop communication systems face challenges in achieving low delay times and efficient radio resource utilization, particularly in scenarios requiring high transfer speeds and wide moving ranges, leading to increased system capacity and potential communication interruptions.
Innovation Solution
A wireless communication system that includes wireless relay devices capable of determining whether to withdraw from or participate in a wireless multi-hop network based on environmental information, allowing for switching between multi-hop and single-hop communication schemes to maintain low latency and optimize radio resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wireless multi-hop communication is used to extend coverage area, then the coverage area is improved, but the delay time increases and radio resource efficiency deteriorates
Solution Approach 1:
The patent implements dynamic path selection where the wireless relay device can switch between multi-hop and single-hop communication modes based on real-time conditions. The determination unit dynamically decides whether to withdraw from the multi-hop network and establish direct single-hop connections, making the system adaptable to changing requirements rather than fixed in one mode.
Solution Approach 2:
The system changes the communication parameter (hop count) based on data characteristics. For time-sensitive data like image streams, the system changes from multi-hop (higher hop count) to single-hop (lower hop count) communication, thereby adjusting the parameter to meet different performance requirements.
2Area of stationary object
If wireless multi-hop communication is used to extend coverage area, then the coverage area is improved, but the radio resource efficiency deteriorates
Solution Approach 1:
The system dynamically adjusts radio resource usage by switching communication modes. The determination unit monitors conditions and dynamically decides when to use multi-hop (more efficient for coverage) versus single-hop (more efficient for resource usage), optimizing resource allocation based on actual needs.
Solution Approach 2:
The communication mode parameter is changed based on data transfer requirements. For large data transfers like image data, the system changes to single-hop mode to reduce the total amount of transmitted data and improve radio resource efficiency.
3Area of stationary object
If the number of hops increases for large data transfer, then the coverage area is extended, but the throughput decreases
Solution Approach 1:
The system changes the hop count parameter based on data characteristics. For large data transfers, it reduces the hop count by establishing direct single-hop connections, thereby improving throughput while still maintaining extended coverage capability when needed.
4Adaptability or versatility
If path reconfiguration is performed for moving relay terminals, then the adaptability is improved, but the delay time increases
Solution Approach 1:
The system implements dynamic path selection where the determination unit can immediately decide to withdraw from multi-hop communication and establish direct connections based on current conditions, avoiding the time-consuming process of dynamic reconfiguration while maintaining adaptability.
Solution Approach 2:
The wireless relay device proactively determines when to withdraw from multi-hop communication before performance degradation occurs. By making preliminary decisions based on environmental information and data characteristics, the system avoids the need for reactive reconfiguration.
Data Source
AI summary
Provided is a wireless relay device that determines whether or not the wireless relay device has to withdraw from a first wireless multi-hop network to which the wireless relay device itself belong, transmits, in a wireless multi-hop, a request for a connection that uses wireless communication in compliance with a first communication scheme between the wireless relay device and at least one wireless base station, to a wireless base station on the first wireless multi-hop network, according to a result of the determination that the wireless relay device withdraws from the first wireless multi-hop network, and allocates the wireless communication in compliance with the first communication scheme between the wireless relay device and the at least one wireless base station according to a control signal that is transmitted from the wireless base station on the first wireless multi-hop network.