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Method and apparatus for performing and reporting measurements by user equipment configured with multiple carriers in mobile communication systems

專(zhuān)利號(hào)
US11659497B2
公開(kāi)日期
2023-05-23
申請(qǐng)人
Samsung Electronics Co., Ltd.（KR Suwon-si）
發(fā)明人
Soenghun Kim; Sangbum Kim; Jaehyuk Jang; Kyeongin Jeong
IPC分類(lèi)
H04W52/36; H04W72/04
技術(shù)領(lǐng)域
ue,scell,enb,pucch,unlicensed,message,band,in,drx,report
地域： Suwon-si

摘要

A communication method and system for supporting a high data transmission rate fuse 5G communication systems with IoT technology to transmit data at a high rate after 4G systems. The method for a terminal in a wireless communication system supporting carrier aggregation includes receiving a control message including indication information, the indication information indicating that physical uplink control channel (PUCCH) feedback for at least one secondary cell (SCell) is transmitted on a SCell; identifying whether the SCell is configured to the terminal and is activated; and if the SCell is configured to the terminal and is activated, obtaining Type 2 power headroom information for the SCell.

說(shuō)明書(shū)

The measurement instructing control message can be transmitted by using an RRCConnectionReconfiguration message of the RRC layer. The measurement instructing control message can include information related to conditions for: a frequency to be measured; and a time that the measurement result of the frequency is reported. For example, in order to inform the ENB of a frequency to be measured, the measurement instructing control message can include information indicating an object to be measured, i.e., an unlicensed band frequency channel to be measured and information regarding a mode to be applied to measurement of the frequency channel, e.g., TDD or FDD. The frequency channel information can specify an unlicensed frequency channel using E-UTRA Absolute Radio Frequency Channel Number (EARFCN). The EARFCN refers to information specifying the center frequency of a frequency band to be measured. One EARFCN is related to one unlicensed band indicator (i.e., indicating an operation mode of TDD or FDD. Therefore, the ENB selects and determines a frequency channel corresponding to a duplex mode supported by UE according to radio frequency channels. After receiving the EARFCN, the UE detects a frequency band corresponding to the radio frequency channel and a type of duplex mode to be used for measurement, from the received EARFCN.

權(quán)利要求

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