Connection reconstruction method and device, terminal and target base station

By associating the first UE and the second UE in the multi-card terminal and completing the connection reconstruction of the two UEs using the RRC reconstruction request message of one of the UEs, the problem of large signaling overhead when multiple SIM cards fail is solved, and more efficient connection reconstruction is achieved.

CN119729909APending Publication Date: 2025-03-28VIVO MOBILE COMM CO LTD
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Patent Information

Application Number
CN202311269754.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-27
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

When multiple SIM cards fail at the same time or in succession, RRC connection reconstruction is required, resulting in large signaling overhead.

Method used

Signaling overhead is saved by associating the first UE with the second UE in the multi-card terminal and completing the RRC connection reconstruction of the two UEs simultaneously through the RRC reconstruction request message of one UE, or assisting the other UE in completing the RRC connection reconstruction.

Benefits of technology

It effectively reduces the signaling overhead of multiple SIM cards when multiple SIM cards fail, and improves the efficiency of connection reconstruction.

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Abstract

Disclosed are a connection reestablishment method and apparatus, a terminal and a target base station, belonging to the technical field of communications, the connection reestablishment method of the embodiment of the present application comprising: a first UE sending a radio resource control (RRC) reestablishment request message; wherein the RRC reestablishment request message is used for requesting to perform RRC connection reestablishment for the first UE and the second UE, or the RRC reestablishment request message is used for requesting to perform RRC connection reestablishment for the second UE; the first UE corresponds to a first SIM card, the second UE corresponds to a second SIM card, and the first SIM card and the second SIM card are located in the same terminal.
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