Relay Node Uplink Transmission Indicator for Retransmission Control
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Solution Overview
Problem
In wireless communication systems, user agents (UAs) often need to retransmit data due to decoding failures, which consumes battery power and reduces network efficiency, as existing technologies do not effectively reduce the likelihood of retransmissions in relay node scenarios.
Innovation Solution
Implementing a relay node that sends data to an access node if no acknowledgement is received, and using indicators to manage retransmissions, allowing the relay node to retransmit data instead of the user agent, thereby reducing the need for multiple retransmissions and conserving battery power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the user agent retransmits data due to decoding failures, then the data delivery reliability is improved, but the battery power consumption increases and network efficiency decreases
Solution Approach 1:
The relay node acts as an intermediary between the user agent and the network. When the relay node successfully decodes the transmitted data, it forwards an indication to the network, preventing the user agent from performing unnecessary retransmissions. This intermediary function resolves the contradiction by improving data delivery reliability through intelligent intervention while reducing battery power consumption by eliminating redundant transmission attempts.
2Reliability
If the user agent retransmits data due to decoding failures, then the data delivery reliability is improved, but the network efficiency decreases
Solution Approach 1:
The system implements a feedback mechanism where the relay node monitors decoding success and provides feedback to both the user agent and the network. When the relay node successfully decodes data, it sends an indication to the network, which then informs the user agent that retransmission is unnecessary. This feedback loop improves data delivery reliability while enhancing network efficiency by preventing redundant retransmission attempts that would congest the network.
3Use of energy by moving object
If the relay node monitors and manages retransmissions, then the battery power consumption is reduced, but the device complexity increases
Solution Approach 1:
The relay node performs self-service by autonomously monitoring decoding success and generating appropriate indications without requiring complex centralized control. The relay node independently determines whether the user agent needs to retransmit based on its own decoding capability, thereby reducing battery power consumption while maintaining manageable device complexity through self-directed operation.
Data Source
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AI summary
A method for providing user agent data. The method includes an access node receiving an indicator sent from a relay node as an indication that the relay node has received data from the user agent.