Relay UE Paging Identifier Filtering for Remote UE Delivery
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Solution Overview
Problem
Existing wireless communication networks face inefficiencies in paging operations for remote UEs through relay nodes, particularly in managing relay links and optimizing paging messages to ensure accurate and efficient delivery.
Innovation Solution
Implementing relay UEs that receive paging identifiers from remote UEs over relay links and forward them to radio access network nodes, maintaining registered UE lists to reject unnecessary paging messages, and enabling multiple relay paths for improved reception and decoding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If relay UEs forward paging messages to RAN nodes without filtering, then paging coverage is extended, but unnecessary transmissions increase and network efficiency decreases
Solution Approach 1:
The relay UE performs preliminary action by maintaining a registered list of remote UEs and filtering paging messages before forwarding to RAN nodes. This pre-filtering mechanism ensures only relevant paging messages are transmitted, eliminating unnecessary network resources consumption while maintaining accurate paging delivery to registered UEs.
Solution Approach 2:
The system implements feedback mechanisms where relay UEs provide information about registered remote UEs to RAN nodes, enabling the network to adjust paging strategies. This feedback loop allows optimization of paging operations by informing the network which UEs are actually served through relay links, improving overall network efficiency.
2Productivity
If relay UEs maintain registered UE lists for filtering, then network efficiency improves, but device complexity increases
Solution Approach 1:
The relay UE performs self-service by autonomously maintaining its own registered list of remote UEs and independently filtering paging messages. This self-managed approach eliminates the need for complex centralized control, allowing each relay UE to efficiently manage its paging operations using locally stored registration information without requiring complex network coordination.
3Reliability
If multiple relay paths are established, then reception reliability improves, but device complexity and resource consumption increase
Solution Approach 1:
The system applies partial action by establishing multiple relay paths only when necessary to improve reception reliability. Rather than always maintaining multiple paths, the relay UE selectively creates backup paths based on actual needs, such as when primary paths fail or when enhanced reliability is required for critical communications. This approach balances reliability improvement with resource consumption control.
Data Source
AI summary
Aspects relate to paging optimizations in relay operations. A remote UE may provide one or more paging identifiers identifying the remote UE to one or more relay UEs over respective relay links therebetween. Each relay UE may provide the paging identifier(s) of the remote UE to a respective serving radio access network (RAN) node, which may further provide the paging identifier(s) of the remote UE to an anchor RAN node and/or core network node to optimize paging of the remote UE. For example, paging of the remote UE may be limited to the cell(s) including the relay UE(s). The remote UE may further be configured to select to receive the paging message from one of the relay UEs or may receive the paging message from each of the relay UEs. A relay UE may further transmit a page reject message to reject a paging message.