Reference signal having variable structure

    公开(公告)号:US11258562B2

    公开(公告)日:2022-02-22

    申请号:US16926030

    申请日:2020-07-10

    Abstract: A method for transmitting a data demodulation reference signal (DMRS) in a wireless communication system and a device therefor are disclosed. To this end, a basic DMRS is transmitted via the first OFDM symbol in a data transmission region of a predetermined subframe, and an additional DMRS is transmitted in the predetermined subframe in accordance with a level determined by a transmission environment, wherein the basic DMRS is characterized by being transmitted via the first OFDM symbol in the data transmission region of the predetermined subframe regardless of a transmission link, the structure of the subframe, and the transmission environment.

    METHOD FOR REPORTING CHANNEL STATE INFORMATION IN UNLICENSED BAND AND DEVICE FOR SAME

    公开(公告)号:US20210385037A1

    公开(公告)日:2021-12-09

    申请号:US17287352

    申请日:2019-10-31

    Abstract: Disclosed is a method for a terminal to report channel state information (CSI) in an unlicensed band. In particular, this disclosure includes: receiving a channel state information-reference signal (CSI-RS) through at least one listen before talk (LBT) sub-band among a plurality of LBT sub-bands; measuring a plurality of pieces of CSI for each of the plurality of LBT sub-bands; generating wideband CSI for all of the plurality of LBT sub-bands on the basis of the plurality of pieces of CSI; and reporting the generated wideband CSI to a base station.

    METHOD FOR MEASURING CHANNEL STATE INFORMATION IN UNLICENSED BAND, AND APPARATUS THEREFOR

    公开(公告)号:US20210329482A1

    公开(公告)日:2021-10-21

    申请号:US17287364

    申请日:2019-11-05

    Abstract: A method by which a terminal measures channel state information (CSI) in an unlicensed band is disclosed. Particularly, the method comprises: receiving at least one channel state information-reference signal (CSI-RS) through at least one listen before talk (LBT) sub-band of a plurality of LBT sub-bands for transmitting a plurality of CSI-RSs within one transmit opportunity (TxOP) section; determining each measurement use for at least one CSI-RS; and measuring the CSI on the basis of each measurement use for the at least one determined CSI-RS, wherein the determination of each measurement use for the at least one CSI-RS is the determining of whether the CSI-RS is for an interference measurement or the CSI-RS is for a signal measurement.

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