Multi-hop Relay Frame Structure for Wireless Communication
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Solution Overview
Problem
Current multi-hop relay wireless communication systems lack a frame structure capable of supporting multi-hop relay services, as they are designed for only two-hop communications, limiting their ability to efficiently manage relay links between Base Stations (BS) and Relay Stations (RS) in dynamic environments.
Innovation Solution
A method and apparatus for transmitting frame information in a multi-hop relay wireless communication system, which includes a frame structure with additional sections for inter-RS communication, allowing for efficient communication between BS, upper RS, and lower RS, enabling adaptive network reconfiguration and improved radio channel quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional two-hop frame structure is used, then the system can support basic relay communication, but it cannot support multi-hop relay services or inter-RS communication
Solution Approach 1:
The frame structure is segmented into multiple distinct sections: first section for direct link service, second section for relay link service, and third section for inter-RS communication. This segmentation allows each section to be optimized for its specific function while collectively supporting multi-hop relay services without overwhelming complexity
Solution Approach 2:
The frame structure is designed with multi-functionality to serve multiple purposes: the first section handles direct BS-MS communication, the second section handles relay link communication, and the third section handles inter-RS communication. This universal design allows a single frame structure to support various communication modes including multi-hop relay services
2Ease of operation
If fixed BS architecture is used, then centralized network design is simple, but flexible wireless network configuration is impeded
Solution Approach 1:
The network architecture transitions from static fixed BS to dynamic relay nodes that can be added, removed, or reconfigured. Relay stations can dynamically establish relay links and inter-RS connections based on traffic demands and channel conditions, enabling flexible wireless network configuration while maintaining manageable complexity through standardized frame structures
3Productivity
If relay scheme is adopted, then network reconfiguration speed improves and radio channel quality improves, but frame structure must be significantly changed from conventional design
Solution Approach 1:
By segmenting the frame into dedicated sections for different communication functions, the system enables rapid network reconfiguration through standardized section assignments. The third section specifically allocated for inter-RS communication allows relay nodes to quickly establish multi-hop connections without redesigning the entire frame structure
Solution Approach 2:
The frame structure is designed in advance with predetermined sections for direct link, relay link, and inter-RS communication. This preliminary structuring allows relay nodes to rapidly reconfigure networks by simply activating or deactivating specific sections rather than creating new frame structures, thus improving reconfiguration speed while managing design complexity
Data Source
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AI summary
Provided is an apparatus and method for transmitting frame information in a wireless communication system using a relay scheme. In a method for transmitting frame information from an upper node in the wireless communication system, downlink section information for communication with the lower relay station for a relay service is transmitted to a lower relay station at the request of the lower relay station for an initial connection. After the initial connection, frame information for communication with the lower relay station for a relay service is transmitted to the lower relay station through the downlink section.