Dependent Station Relay Acknowledgement for Bandwidth Efficiency
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Solution Overview
Problem
Existing wireless repeater systems waste communication bandwidth by redundantly transmitting the same data multiple times, leading to inefficient utilization and reduced overall data transfer capacity.
Innovation Solution
Implementing a system where dependent stations acknowledge received data and only relay necessary data in subsequent superframes, optimizing transmission by using acknowledgement responses to determine if retransmission is needed, thereby reducing unnecessary data transfer and utilizing bandwidth more efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant relay transmission is performed to ensure reliable data delivery, then data reliability is improved, but communication bandwidth utilization deteriorates
Solution Approach 1:
The patent implements an acknowledgement mechanism where receiving stations send feedback signals to transmitting stations to confirm successful data reception. This feedback system enables the network to dynamically adjust transmission behavior - when data is successfully received, redundant retransmissions are avoided; when reception fails, retransmission is triggered. This resolves the contradiction by making reliability assurance conditional on actual reception status rather than unconditional redundancy.
Solution Approach 2:
The patent changes the transmission parameter from fixed redundant transmission to dynamic transmission based on acknowledgement responses. The system monitors reception status and adjusts the number of transmissions accordingly - transmitting once when successful and retransmitting only when necessary. This parameter change optimizes bandwidth utilization while maintaining reliability.
2Reliability
If redundant data transmission is performed multiple times, then data reliability is improved, but overall data transfer capacity deteriorates
Solution Approach 1:
The acknowledgement mechanism provides feedback on reception success, allowing the system to eliminate unnecessary redundant transmissions. When data is successfully received, no retransmission occurs, freeing up bandwidth for other data transfers. This feedback-driven approach maintains synchronous data delivery reliability while maximizing overall network productivity by preventing bandwidth waste.
Solution Approach 2:
The patent applies partial action by performing retransmission only when necessary rather than always transmitting redundant copies. The system uses the minimum required transmissions to achieve reliable delivery - one transmission when successful, and only additional transmissions when acknowledgements indicate failure. This partial action approach maintains reliability while preserving data transfer capacity.
3Loss of energy
If acknowledgement responses are transmitted to indicate reception conditions, then bandwidth efficiency is improved, but system complexity increases
Solution Approach 1:
The acknowledgement mechanism introduces a relatively simple feedback loop where receiving stations send confirmation signals to transmitting stations. This feedback system, while adding some complexity, achieves significant bandwidth efficiency by preventing unnecessary retransmissions. The complexity is justified by the substantial gain in communication efficiency and is implemented using standard communication protocols.
Data Source
AI summary
In a communication system that includes a control station and dependent stations, the control station broadcasts data intended for the dependent stations on a per-superframe basis. The dependent stations relay the data received from the control station among themselves. If a dependent station has received the data transmitted from the control station, the dependent station transmits an acknowledgement response. If a dependent station does not receive an acknowledgement response from another dependent station, then the dependent station relays the data intended for the other dependent station.