Network node, base station and communication method

By using a system that receives and processes geographical location information from terminals to identify and notify registered areas, the challenges of managing moving cells and base stations in wireless communication systems are addressed, resulting in improved operational efficiency and reliability in NTN environments.

JP7648058B2Active Publication Date: 2025-03-18NTT DOCOMO INC
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Patent Information

Application Number
JP2022570920
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-12-24
Publication Date
2025-03-18
Estimated Expiration
2040-12-24

AI Technical Summary

Technical Problem

Existing wireless communication systems struggle to manage terminals effectively when cells and base stations move geographically, leading to issues with paging, emergency calls, and handover operations in non-terrestrial networks (NTN).

Method used

The system employs a receiving unit to gather geographical location information from terminals, a control unit to identify registered areas based on this information, and a transmitting unit to notify terminals of their registered areas. This solution is specifically designed to support moving cells by filtering terminal registrations based on capability information regarding cell movement support.

Benefits of technology

This approach enables efficient management of terminals based on geographical information, ensuring effective paging, emergency call handling, and handover operations even in scenarios where cells and base stations are moving, thereby enhancing the reliability and coverage of wireless communication systems in NTN environments.

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Abstract

This network node comprises: a reception unit for receiving, from a base station, information indicating a geographical range corresponding to an area supported by the base station, and receiving, from a terminal, first geographical location information of the terminal; a control unit for determining a first registration area including the location indicated by the first geographical location information; and a transmission unit for notifying the terminal of the first registration area.
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