Handover method, core network device, and network device

By grouping and clustering terminal devices and optimizing inter-satellite handover in NTN communication using core network equipment, the problem of high signaling overhead was solved, and the handover success rate and network efficiency were improved.

WO2026144159A1PCT designated stage Publication Date: 2026-07-09HONOR DEVICE CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
HONOR DEVICE CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-09

AI Technical Summary

Technical Problem

In NTN communication scenarios, when there are a large number of terminal devices, the signaling overhead during inter-satellite handover is significant, especially due to excessive signaling interactions caused by frequent handovers of low-speed or stationary devices, which affects network efficiency.

Method used

By grouping terminal devices and using core network equipment to cluster them based on their location information, bandwidth requirements, and other information, handover requests are made on a group-by-group basis. This ensures that devices in the same group have similar communication environments, limits the total bandwidth requirements, and optimizes the handover process.

Benefits of technology

It effectively reduces the signaling overhead of inter-satellite handover, improves the success rate and rationality of handover, reduces signaling interaction, and enhances the processing accuracy and efficiency of network equipment.

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Abstract

Embodiments of the present application relate to the technical field of communications, and provide a handover method, a core network device, and a network device. The method comprises: a core network device receives a first handover request sent by a first network device, the first handover request being used for requesting to hand over a network device connected to a terminal device in a first group to a second network device; and in response to the first handover request, the core network device sends a second handover request to the second network device, the second handover request instructing to hand over the network device connected to the terminal device in the first group to the second network device. Handover requests for a terminal device are sent in groups, so that signaling overhead in an inter-satellite handover process can be effectively reduced.
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