Method for performing positioning in wireless communication system and device therefor

    公开(公告)号:US10514438B2

    公开(公告)日:2019-12-24

    申请号:US15508747

    申请日:2015-09-03

    Abstract: Disclosed is a method for performing positioning by a user equipment (UE) in a wireless communication system including: receiving first assistance data including first reference cell information and first neighbor cell information from a first base station (BS) through a first frequency; receiving second assistance data including second reference cell information and second neighbor cell information from a second base station through a second frequency; receiving a positioning reference signal (PRS) on the basis of the first assistance data and receiving a discovery reference signal (DRS) on the basis of the second assistance data; performing measurement using the received PRS and the DRS; and reporting a measurement result to a serving BS.

    Method and apparatus for receiving or transmitting downlink signal in a wireless communication system

    公开(公告)号:US10433293B2

    公开(公告)日:2019-10-01

    申请号:US15638253

    申请日:2017-06-29

    Abstract: A method for receiving a downlink signal according to a Demodulation Reference Signal (DMRS)-based transmission scheme, performed by a mobile terminal, in a wireless communication system is disclosed. The method includes receiving indication information indicating whether rate matching or timewise Resource Element (RE) pairing is allowed for REs that do not constitute frequency-wise RE pairs for Space Frequency Block Coding (SFBC) on symbols to which DMRSs are mapped in a Resource Block (RB) for a DL data channel, and decoding the downlink data channel, on assumption that the REs that do not constitute frequency-wise RE pairs for SFBC are rate-matched, or constitute time-wise RE pairs to which transmission data is mapped, according to the indication information.

    Method for transmitting/receiving channel state information in wireless communication system, and device for same

    公开(公告)号:US10432287B2

    公开(公告)日:2019-10-01

    申请号:US15767124

    申请日:2016-10-07

    Abstract: Disclosed are a method for transmitting/receiving channel state information in a wireless communication system and a device for same. In particular, a method of reporting channel state information (CSI), by a user equipment (UE) in a wireless communication system comprises the steps of: receiving, from an eNB, a CSI process configuration comprising interference measurement restriction information indicating interference measurement restriction; and reporting, to the eNB, CSI corresponding to a CSI process configured by the CSI process configuration, wherein when a first subframe set and a second subframe set are configured for the CSI process, the interference measurement restriction can be independently configured for each of the first subframe set and the second subframe set.

    Method for measuring and reporting channel state in wireless access system supporting unlicensed band

    公开(公告)号:US10425211B2

    公开(公告)日:2019-09-24

    申请号:US15506206

    申请日:2015-09-01

    Abstract: A wireless access system supporting an unlicensed band and, more particularly, to a method for measuring a channel state and an apparatus for supporting the same. As one embodiment of the present invention, a method for reporting channel state information (CSI) in a wireless access system supporting an unlicensed band may comprise the steps of: receiving an upper layer signal including channel state information-reference signal (CSI-RS) configuration information and channel state information-interference measurement (CSI-IM) configuration information for one or more transmission points (TP) included in a transmission opportunity (TxOP) duration; receiving a physical layer signal including TxOP configuration information that indicates which TP is included in the TxOP duration; measuring the CSI by using a CSI-RS resource and a CSI-IM resource for the TP indicated by the TxOP configuration information, on the basis of the CSI-RS configuration information and the CSI-IM configuration information; and reporting the measured CSI.

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