Managing mobility for a user equipment

By enabling RAN nodes to receive and act upon UE-specific LTM capability indications, the method improves LTM configuration and reduces latency and overhead during serving cell changes in wireless communication systems.

WO2025072577A1 Publication Date: 2025-04-03GOOGLE LLC
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Patent Information

Application Number
PCT/US2024/048738
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-26
Filing Date
2024-09-26
Publication Date
2025-04-03

AI Technical Summary

Technical Problem

Current wireless communication systems face challenges in correctly configuring lower-layer triggered mobility (LTM) for user equipment (UE) in various connectivity scenarios, leading to increased latency and overhead during serving cell changes.

Method used

The proposed solution involves a method where a radio access network (RAN) node receives indications from a UE about its LTM capability for different cell groups, allowing the RAN to configure the UE with specific LTM configurations for each cell group, thereby enabling efficient LTM management.

Benefits of technology

This approach reduces latency and overhead associated with serving cell changes by allowing the UE to support LTM configurations tailored to its capabilities, enhancing mobility management in wireless communication systems.

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Abstract

A radio access network (RAN) node receives (902), from a user equipment (UE), a first indication of lower-layer triggered mobility (LTM) capability of the UE, for a first cell group (CG); receives (904), from the UE, a second indication of LTM capability of the UE, for a second CG; configures (906) the UE with a first LTM configuration for the first CG in accordance with the first indication; and configures (908) the UE with a second LTM configuration for the second CG in accordance with the second indication.
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