Sidelink Relaying Resource Pool Prioritization
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Solution Overview
Problem
Existing technologies for sidelink based relaying in 3GPP networks face challenges in efficiently managing communication between user equipment (UE) and network nodes, particularly in prioritizing candidate relay user equipment for effective data transmission.
Innovation Solution
A method where a remote user equipment (UE) prioritizes candidate relay user equipment based on resource pools, determining a priority list of resource pools to facilitate the selection of prioritized candidate relay UEs, and reporting these selections to the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the remote UE monitors all configured sidelink reception resource pools to discover candidate relay UEs, then the discovery completeness is improved, but the power consumption and processing complexity increase
Solution Approach 1:
The patent segments the sidelink reception resource pools into prioritized and non-prioritized groups. The remote UE monitors prioritized resource pools (where it transmits sidelink communications) with high priority and non-prioritized resource pools with low priority or selectively, thereby reducing overall monitoring burden while maintaining effective relay discovery
Solution Approach 2:
The patent applies different monitoring priorities to different resource pools based on their relationship to the remote UE's transmission pools. Resource pools that overlap or are related to the UE's own transmission pools are monitored more intensively, while others are monitored less, creating localized quality differences in monitoring effort
2Loss of information
If the remote UE reports all discovered candidate relay UEs to the network, then the network has complete information for relay selection, but the signaling overhead and reporting complexity increase
Solution Approach 1:
The remote UE performs preliminary prioritization of candidate relay UEs based on the resource pool criteria before reporting to the network. By pre-filtering and ranking candidates according to the prioritization rules (matching transmission pools, overlap degree, etc.), the UE prepares the information in advance, reducing the complexity of the actual reporting process and enabling the network to receive already-processed, high-value information
3Productivity
If the remote UE prioritizes candidate relay UEs based on resource pool matching, then the relay selection efficiency is improved, but the selection criteria complexity increases
Solution Approach 1:
The patent changes the parameter used for prioritization from generic signal strength metrics to resource pool matching characteristics. Specifically, it uses the degree of overlap between reception and transmission resource pools as the prioritization criterion, transforming the selection basis into a more relevant and efficient parameter that directly reflects communication compatibility
Data Source
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AI summary
There is disclosed methods, apparatuses and computer program products for management of sidelink based relaying. In accordance with an embodiment, the method comprises obtaining information of sidelink resource pools related to sidelink communication in a wireless communication network; determining one or more prioritized resource pools from the obtained information of sidelink resource pools; obtaining information of candidate relay user equipments for sidelink communication from the determined one or more prioritized resource pools; prioritizing for reporting at least one candidate relay user equipment among the candidate relay user equipments based on the determined one or more prioritized resource pools; and reporting the prioritized at least one candidate relay user equipment to the wireless communication network.