Inter-GNB Relay UE Selection for Wireless Path Switching
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing inter-GNB direct-to-indirect path switching for UE-to-NW relay communication, which is crucial for providing reliable and high-data-throughput services in next-generation networks.
Innovation Solution
The proposed method involves a first network node receiving information about candidate relay User Equipments (UEs) from a remote UE and then sending this information to a second network node to select a target relay UE, enabling efficient inter-GNB direct-to-indirect path switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inter-GNB direct-to-indirect path switching is implemented for UE-to-NW relay communication, then reliability and data throughput are improved, but system complexity and management difficulty increase
Solution Approach 1:
The source gNB acts as an intermediary that collects candidate relay UE information from the remote UE and forwards it to the target gNB. This intermediary role simplifies the path switching management by centralizing the information collection and coordination function in the source gNB, reducing the complexity burden on other network elements while enabling reliable path switching.
Solution Approach 2:
The system performs preliminary actions by having the remote UE provide candidate relay UE information to the source gNB before the actual path switching occurs. The source gNB then prepares and forwards this information to the target gNB in advance, allowing the target gNB to pre-evaluate and select the optimal relay UE, thereby streamlining the switching process and reducing management complexity during execution.
2Measurement precision
If candidate relay UE information is exchanged between network nodes, then relay selection accuracy is improved, but information processing overhead increases
Solution Approach 1:
The patent extracts only the essential candidate relay UE information needed for selection and transmits it between network nodes. By taking out only the necessary information elements rather than complete UE profiles or all possible parameters, the system achieves accurate relay selection while minimizing information processing overhead and transmission burden.
3Adaptability or versatility
If multiple candidate relay UEs are evaluated, then communication service quality is improved, but selection process time increases
Solution Approach 1:
The system evaluates multiple candidate relay UEs to ensure service quality but applies partial action by limiting the evaluation to a manageable subset of candidates or by prioritizing key evaluation criteria. This allows the system to maintain high adaptability and service quality through multi-candidate evaluation while controlling the selection process time through selective and prioritized assessment.
Data Source
AI summary
A method and device are disclosed for a first network node. In one embodiment, the method includes the first network node receiving a first information of candidate relay User Equipments (UEs) from a remote UE. The method further includes the first network node sending the first information of candidate relay UEs or a second information of candidate relay UEs to a second network node for the second network node to select a target relay UE, wherein the second information of candidate relay UEs is derived from the first information of candidate relay UEs.