Multi-Hop UE Paging Paths Using Relay UE Election
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Solution Overview
Problem
In scenarios where a UE is multiple hops away from a base station, existing paging mechanisms face challenges such as relay UE election, remote UE selection, determination of remote UE POs, and maintaining paging paths due to mobility, leading to inefficiencies and overhead in paging message propagation.
Innovation Solution
Methods for relay UE election, paging path establishment, and maintenance are introduced, including discovery-based and selection-based procedures to establish and manage paging paths between a remote UE and a gNB, utilizing relay UEs to forward paging messages efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If relay UE election and paging path establishment procedures are implemented, then reliable paging message delivery to remote UEs is achieved, but system complexity and overhead increase
Solution Approach 1:
The patent applies preliminary action by establishing paging paths in advance before actual paging messages need to be delivered. Remote UEs perform path discovery and establishment procedures proactively, so that when paging is required, the path is already ready for immediate use, reducing latency and improving reliability without adding complexity during the actual paging operation
Solution Approach 2:
The patent implements feedback mechanisms where relay UEs and remote UEs exchange information about their paging path status, capabilities, and availability. This feedback loop allows the network to select optimal relays and maintain accurate routing information, ensuring reliable delivery while managing system complexity through intelligent decision-making
2Adaptability or versatility
If discovery-based paging path establishment is used, then dynamic adaptability to mobility is improved, but paging path establishment time increases
Solution Approach 1:
The patent applies dynamics by implementing a flexible paging path establishment mechanism that can adapt to changing network conditions and mobility scenarios. The discovery-based approach allows the system to dynamically select optimal paths based on current network state, ensuring adaptability while managing establishment time through efficient search algorithms
Solution Approach 2:
The patent uses preliminary action by having remote UEs perform path discovery and establishment in advance before actual paging is needed. This proactive approach pre-configures the necessary routing information and relay connections, so that when paging occurs, the path is already established and ready for immediate message delivery, significantly reducing the effective time loss
3Reliability
If relay UEs forward paging messages through multiple hops, then remote UE reachability is improved, but paging message propagation overhead increases
Solution Approach 1:
The patent applies segmentation by dividing the paging message propagation into discrete segments along the relay chain. Each relay UE handles a specific segment of the path and forwards the message to the next relay or remote UE. This segmented approach improves reachability by enabling multi-hop transmission while managing overhead through efficient segment-by-segment processing and targeted forwarding
Data Source
AI summary
Methods, systems, and devices may address issues for sending a paging message to a remote UE that is more than one hop from a base station.