Transmission Node Resource Signaling With LBT Conflict Avoidance
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Solution Overview
Problem
In 6G radio communication systems using higher frequencies, there is a likelihood of resource conflicts due to autonomous resource determination, necessitating a method to avoid such conflicts.
Innovation Solution
A transmission node equipped with a reception unit to receive resource notifications, a control unit for LBT, and a transmission unit to transmit signals using both notified and LBT-obtained resources, ensuring coordinated resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If autonomous resource determination is implemented in 6G radio communication systems, then resource allocation flexibility and network performance are improved, but resource conflict probability increases
Solution Approach 1:
The transmission node performs LBT (Listen Before Talk) procedure before transmitting the notification to the autonomous determination node. This preliminary action ensures that the transmission timing is confirmed to be free of conflicts before the autonomous node uses the resource, thereby preventing resource conflicts while maintaining autonomous allocation flexibility
Solution Approach 2:
The transmission node receives feedback information from the autonomous determination node after the LBT procedure. This feedback mechanism allows the transmission node to confirm that the resource has been successfully allocated without conflict, ensuring reliability while maintaining the adaptability of autonomous resource determination
2Reliability
If LBT is executed for all transmissions, then resource conflict is avoided, but transmission latency increases
Solution Approach 1:
The LBT procedure is applied partially only to the notification transmission from the transmission node to the autonomous determination node, rather than to all transmissions. This partial application avoids resource conflicts for the critical notification while allowing the autonomous node to transmit without additional LBT delays, thereby reducing overall transmission latency while maintaining conflict avoidance where needed
Data Source
AI summary
A transmission node includes: a reception unit configured to receive a notification of a resource to be used for transmission; a control unit configured to execute an LBT (Listen before talk) to obtain a resource that is selected autonomously; and a transmission unit configured to transmit a desired signal with at least one of the resource of the notification and the resource obtained by the LBT.