Relay Station Timing Coordination for Uplink Efficiency
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Solution Overview
Problem
Current radio communication systems face delays in uplink and downlink data transmission due to simultaneous signal processing from multiple radio base stations, leading to inefficiencies and packet discards, particularly when relay stations cannot handle simultaneous transmissions or receptions from multiple nodes.
Innovation Solution
Implementing a communication system where relay stations and base stations notify each other of optimal timing for data transmission, allowing for staggered and efficient data exchange, preventing failures in signal processing and retransmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If relay stations simultaneously receive signals from multiple radio base stations, then communication coverage is expanded, but signal processing failures and delays occur
Solution Approach 1:
The relay station determines candidate timing for receiving signals from multiple base stations in advance, before actual signal transmission occurs. This preliminary timing coordination prevents simultaneous reception conflicts and ensures reliable signal processing while maintaining expanded coverage area.
2Productivity
If relay stations handle simultaneous transmissions from multiple nodes, then network capacity increases, but transmission delays and packet losses occur
Solution Approach 1:
The relay station determines candidate timing for receiving and transmitting data in advance, coordinating with multiple base stations before actual data transmission. This prevents simultaneous transmission conflicts and packet losses while maintaining high network capacity through efficient parallel communication paths.
Data Source
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AI summary
In order to achieve a more efficient data transmission, an RN 200, which is to relay communications between UE 300 and a DeNB 100, notifies, in advance, the DeNB 100 of a timing at which RN 200 can transmit, to the DeNB 100, upstream data received from the UE 300, and thereafter the RN 200 transmits the upstream data to the DeNB 100.