Relay Node Selection Using Channel Measurement Feedback
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Solution Overview
Problem
There is currently no method for selecting a suitable relay node for UE-to-Network Relay or UE-to-UE Relay communication in wireless communication systems, which affects the reliability of data transmission.
Innovation Solution
A method and device for selecting a relay node by receiving report messages from relay nodes and selecting a target relay node based on channel measurement information or relay condition information to establish a reliable communication connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a relay node is used for UE-to-Network Relay or UE-to-UE Relay communication, then communication coverage is extended and data transmission is enabled, but there is no method for selecting a suitable relay node which affects transmission reliability
Solution Approach 1:
The patent implements a feedback mechanism where the first device receives report messages from relay nodes containing channel measurement information and relay condition information. The first device uses this feedback to evaluate and select the optimal relay node, thereby improving data transmission reliability through informed decision-making.
Solution Approach 2:
The relay nodes autonomously measure channel quality and evaluate their own relay conditions, then report this self-assessed information to the first device. This self-service approach enables the system to select reliable relay nodes without requiring complex external evaluation mechanisms.
2Measurement precision
If relay nodes transmit report messages with channel measurement information, then relay node selection accuracy is improved, but message transmission overhead increases
Solution Approach 1:
The patent extracts only the essential information needed for relay node selection from the report messages, specifically channel measurement information and relay condition information. By taking out only these critical parameters, the system achieves accurate relay node selection while minimizing message transmission overhead and avoiding unnecessary information exchange.
Data Source
AI summary
Disclosed in the present application are a relay node selection method and device, which are used to solve the problem of no relay node selection method being available currently for communication modes such as UE-to-Network Relay or UE-to-UE Relay. According to the embodiments of the present application, a first device receives a report message sent by at least one relay node; and the first device selects a target relay node from among the at least one relay node so that a remote terminal establishes a connection with a target node by means of the target relay node.