Relay Network Time Domain Resource Configuration Method
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Solution Overview
Problem
In relay network systems, half-duplex devices face transmission collisions due to time domain resource collisions between neighboring links, which existing technologies have not adequately addressed.
Innovation Solution
A method for sending time domain resource configuration information from a first node to a second node, allowing the second node to determine its own time domain resource configuration and indicating that the last time domain unit is the same as the first, to prevent collisions and align resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If time domain resource configuration is not coordinated in relay networks, then device complexity is reduced, but transmission collisions occur between neighboring links
Solution Approach 1:
The patent applies preliminary action by having the first node send time domain resource configuration information to the second node before actual transmission occurs. This allows the second node to pre-determine its time domain resource configuration and avoid collisions in advance, rather than reacting to conflicts during transmission.
Solution Approach 2:
The patent implements feedback through the second node sending back determination information about its time domain resource configuration to the first node. This feedback loop enables the first node to verify that no collisions occur and adjust configurations as needed, ensuring transmission reliability.
2Ease of operation
If time domain resources are allocated independently at each node, then ease of operation is improved, but time domain resource collisions occur
Solution Approach 1:
The patent applies segmentation by dividing the time domain resource allocation into separate configuration information blocks that can be independently processed at each node. The first node sends configuration information about its time domain resources, and the second node independently determines its own configuration based on this information, maintaining ease of operation while preventing collisions.
3Reliability
If no time domain resource indication is provided, then device complexity is minimized, but transmission collisions occur in half-duplex relay networks
Solution Approach 1:
The patent uses an intermediary approach where the first node acts as a mediator by sending time domain resource configuration information to the second node. This intermediary communication mechanism enables coordinated resource allocation without requiring complex direct negotiation between all nodes, maintaining reliability while managing complexity.
Data Source
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AI summary
This application provides a time domain resource indication method, a network device, and user equipment. The method includes: receiving, by a second node, first time domain resource configuration information sent by a first node; determining, by the second node, second time domain resource configuration information based on the first time domain resource configuration information; and sending, by the second node, the second time domain resource configuration information to at least one third node, where the first time domain resource configuration information indicates first time domain resources of a link between the first node and at least one second node, and the second time domain resource configuration information indicates second time domain resources of a link between the second node and the at least one third node. According to the foregoing method, a collision of time domain resources can be avoided.