Relay UE Paging Groups for Remote UE Power Saving
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing power consumption for remote user equipment (UE) groups, particularly in scenarios involving relay communications, leading to suboptimal battery life and network performance.
Innovation Solution
Implementing techniques for grouping remote UEs into paging groups, where a relay UE transmits information identifying these groups to a base station, receives grouping indications, and monitors paging occasions to determine message reception, thereby optimizing power usage and reducing unnecessary activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a relay UE monitors paging occasions for multiple remote UEs individually, then paging delivery reliability is improved, but power consumption increases
Solution Approach 1:
The patent combines multiple remote UEs into a single paging group, allowing the relay UE to monitor a single unified paging occasion for all grouped remote UEs instead of monitoring separate paging occasions for each UE. This merging approach maintains paging delivery reliability while significantly reducing the relay UE's power consumption by consolidating monitoring activities.
Solution Approach 2:
The paging group structure enables a single paging message to serve multiple remote UEs simultaneously. The relay UE performs a universal monitoring function for the entire group, and the base station can deliver paging messages to multiple UEs through this single relay UE, improving resource utilization and reducing overall system power consumption.
2Measurement precision
If remote UEs are monitored individually, then paging message delivery accuracy is improved, but network resource efficiency deteriorates
Solution Approach 1:
Multiple remote UEs are merged into a single paging group with a unified paging occasion. The base station delivers paging messages to the relay UE, which then forwards them to the appropriate remote UEs within the group. This approach maintains accurate message delivery while improving network resource efficiency by reducing the total number of paging occasions and minimizing redundant transmissions.
3Reliability
If the relay UE monitors all paging occasions for remote UEs, then paging coverage is improved, but device complexity increases
Solution Approach 1:
The patent segments remote UEs into distinct paging groups, where each group is associated with a specific relay UE. This segmentation allows the relay UE to monitor only the paging occasions relevant to its grouped remote UEs, rather than monitoring all possible paging occasions. The segmentation reduces monitoring complexity while maintaining comprehensive paging coverage through the distributed group structure.
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, information identifying multiple remote UEs for which the UE serves as a relay UE. The UE may receive, from the base station, an indication of a grouping of the remote UEs into one or more paging groups. The UE may monitor, for each paging group of the one or more paging groups, paging occasions associated with that paging group to determine whether paging messages for the remote UEs in that paging group are received from the base station. Numerous other aspects are described.