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Method and device for conditionally adding and changing cell

專利號
US11997545B2
公開日期
2024-05-28
申請人
Samsung Electronics Co., Ltd.（KR）
發(fā)明人
June Hwang; Himke Van Der Velde; Beomsik Bae; Soenghun Kim
IPC分類
H04W36/00; H04W8/22
技術(shù)領(lǐng)域
sn,pscell,mn,message,rrc,scho,may,cell,terminal,candidate
地域： Gyeonggi-do

摘要

The present disclosure relates to a communication technique for merging IoT technology with a 5G communication system for supporting higher data transmission rates than 4G systems, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. In addition, the present disclosure relates to a method for adding or changing a cell, and a device for performing same.

說明書

The terminal having received measurement information used as configuration information and a condition for the corresponding cell may perform a compliance check of condition information and configuration information to be used for the target or the target candidate cell. The terminal transfers an RRC reconfiguration complete message based on the SN RAT to the SN through an srb3 (operation 18-30). According to an embodiment of the disclosure, when only a condition of a conditional PSCell change or configuration information of the target or the target candidate cell exists in the RRC reconfiguration message based on the SN RAT without configuration information for a source cell, RRC reconfiguration complete may not be transmitted.

In addition, the terminal starts a measurement for the condition of the corresponding conditional PSCell change, and starts to determine whether the condition is satisfied (operation 18-35). At the time point at which the condition is satisfied, the terminal may perform the following operations.

    • The terminal performs a conditional handover to a target PSCell.
    • The terminal starts a timer by using T304-like information (or T304 information) transferred in a previous SN RRC reconfiguration for a conditional PSCell change.
    • The terminal performs a random access to the target PSCell (operation 18-45).

權(quán)利要求

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