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Method and apparatus for rapidly reporting frequency measurement results in next generation mobile communication system

專利號
US10785668B2
公開日期
2020-09-22
申請人
Samsung Electronics Co., Ltd.（KR）
發(fā)明人
Donggun Kim; Soenghun Kim; Jaehyuk Jang
IPC分類
H04W24/10; H04L29/06; H04W48/12
技術(shù)領(lǐng)域
pdcp,ue,rrc,rlc,message,may,gnb,sdu,in,scg
地域： Gyeonggi-do

摘要

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A control method of a user equipment (UE) in a wireless communication system is provided. The method includes receiving packet data convergence protocol (PDCP) configuration information including information indicative of whether a PDCP layer supports out-of-sequence delivery; identifying whether the PDCP layer supports out-of-sequence delivery based on the PDCP configuration information; and processing a PDCP protocol data unit (PDU) based on a result of identifying whether the PDCP layer supports out-of-sequence delivery.

說明書

If the corresponding bearer is the SRB (i.e., SRB3) of the SCG or an SCG DRB (including a bearer transmitted to the SCG only and an SCG split bearer), the UE may stop both the transmission of the SCG DRB and the transmission of the split DRB to the SCG, and may also stop the transmission of the SRB3 and the transmission of the split SRB1/SRB2 to the SCG at step 3e-13. The UE may report the occurred error to the MCG eNB at step 3e-15. When the report is transmitted, the SCGFailureInformation message of the RRC layer may be used. The message may include information providing notification that the cause of the failure is an SRB3 (or SCG DRB) integrity check error RRC reconfiguration failure. The UE may generate the PDCP status report of the PDCP layer with respect to an SRB or DRB that satisfies the following conditions, and may report that the UE has correctly received up to which packet to the MCG eNB at step 3e-17.

    • A MCG split DRB or the SCG split DRB (or split SRB1/SRB2/SRB3)
    • A DRB that belongs to DRBs and in which “statusReportRequired” has been configured by the configuration of the eNB

Accordingly, the MCG eNB is notified that packets up to which downlink packet have been correctly received so that the MCG eNB can recover any loss although data stacked in the SCG is lost.

FIG. 3F is a block diagram of a UE according to an embodiment.

權(quán)利要求

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