Relay-Assisted Sensing Feedback for Long-Range Response Nodes
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Solution Overview
Problem
In multi-node collaborative sensing scenarios, some response nodes fail to successfully feedback channel measurement results to the sensing request node due to long distance or poor channel quality, leading to transmission failures.
Innovation Solution
A sensing request node selects a third response node from successfully transmitting nodes to relay configuration information, enabling the first response node to retransmit sensing data to the third response node, which then forwards it to the sensing request node.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If response nodes transmit sensing data directly to the sensing request node over long distances, then the sensing coverage area is expanded, but the transmission reliability deteriorates due to poor channel quality
Solution Approach 1:
The patent introduces intermediate relay nodes (other response nodes with better channel conditions) to forward sensing data from nodes with poor direct transmission capability to the sensing request node. This mediator approach enables extended sensing coverage while maintaining transmission reliability by breaking the direct long-distance link into shorter hops through intermediate nodes.
2Reliability
If response nodes retransmit sensing data multiple times to ensure delivery, then the transmission reliability is improved, but the time consumption increases
Solution Approach 1:
The patent implements preliminary action by having response nodes perform channel quality measurements and select optimal relay nodes before the actual sensing data transmission. Configuration information including relay node identifiers and transmission parameters is pre-configured, so when data needs to be transmitted, nodes can immediately use the pre-determined optimal path without time-consuming retransmission attempts or dynamic search, thus reducing overall time consumption while ensuring reliable delivery.
Data Source
AI summary
A sensing request node includes a transceiver and a processor configured to, in response to determining that a first response node in a sensing area has not returned first sensing data and receiving the first sensing data from at least one second response node in the sensing area, select a third response node from the at least one second response node, transmit relay configuration information to the first response node and the third response node, and receive second sensing data from the third response node. The second sensing data is the first sensing data retransmitted by the first response node to the third response node according to the relay configuration information.