System information acquisition method, communication apparatus, program product, and medium

By having the terminal device actively request SIB1 under specific conditions, the problem of dwell and communication caused by missing system information change instructions was solved, and communication reliability and correct information acquisition were achieved in energy-saving 5G network cells.

WO2026026032A9PCT designated stage Publication Date: 2026-03-26HONOR DEVICE CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-26

AI Technical Summary

Technical Problem

In 5G networks, terminal devices may fail to properly camp on a cell or request other system information due to missing system information change instructions, leading to communication problems.

Method used

Under specific conditions, the terminal device actively requests the network device to obtain the first system information block (SIB1), including situations such as not receiving a system information change instruction within the change cycle, having other system information acquisition needs, different change cycles, request failure, or pending data transmission or reception, by sending a system information request to obtain the latest SIB1.

Benefits of technology

Ensure that terminal devices can obtain the changed system information in a timely manner, avoid camping and communication problems caused by missing system information change instructions, and improve communication reliability in energy-saving network cells.

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    Figure CN2025090044_26032026_PF_FP_ABST
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Abstract

The embodiments of the present application relate to the technical field of communications. Provided are a system information acquisition method, a communication apparatus, a program product, and a medium. The method is applied to a terminal device which supports an on-demand system information block type1. The method comprises: when a condition for camping on a target cell and a system information request trigger condition are met, sending a system information request, which is used for acquiring first system information, wherein the first system information comprises a system information block type1, and the target cell supports an on-demand system information block type1. In the embodiments of the present application, when a cell camping condition and a system information request trigger condition are met, a terminal device initiates a request to a network device for a system information block type1, such that changed system information can still be acquired in a timely manner even if the terminal device misses a system information change indication, thereby ensuring that the terminal device can correctly camp in a network energy-saving cell scenario.
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