Managing mobility in a network that supports dual connectivity.

User equipment in dual connectivity networks performs measurements and sends reports to the serving master distributed node, enabling informed handover decisions through Layer 1 and Layer 2 messages, ensuring smooth transitions in network configurations.

JP7876058B2Active Publication Date: 2026-06-18NOKIA TECHNOLOGIES OY
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NOKIA TECHNOLOGIES OY
Filing Date
2023-06-20
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

In networks supporting dual connectivity, handover decisions made at distributed nodes based on lower layer signal measurements complicate user equipment configurations, particularly when the primary cell changes, affecting the configuration of the secondary cell.

⚗Method used

User equipment is configured to perform measurements and send reports to the serving master distributed node, receiving measurement configurations to enable informed lower-layer dual connectivity handover decisions, including Layer 1 and Layer 2 messages for cell change instructions.

🎯Benefits of technology

Enables the serving master distributed node to make informed handover decisions by considering both primary and secondary cell configurations, facilitating seamless transitions without disrupting connectivity.

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Abstract

A 5G new wireless network supporting dual connectivity for user equipment allows the user equipment to simultaneously access the network via a primary cell and a secondary cell. Radio coverage in the primary cell is supported by a master distributed node controlled by a master central node, while radio coverage in the secondary cell is supported by a secondary distributed node controlled by a secondary central node. Embodiments seek to support lower layer dual connectivity mobility of user equipment by providing coordination between the master cell and the secondary cell such that handover decisions can be made at the master distributed node based on lower layer measurements.
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