METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING WIRELESS SIGNAL IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200178258A1

    公开(公告)日:2020-06-04

    申请号:US16625070

    申请日:2018-06-27

    Abstract: The present invention relates to a wireless communication system and, more particularly, to a method comprising the steps of: generating a first complex symbol sequence corresponding to one time unit including a plurality of transmission symbols; generating a second complex symbol sequence by applying primary scrambling to the first complex symbol sequence on a modulation symbol basis; and repeatedly transmitting the second complex symbol sequence through a plurality of time units, wherein secondary scrambling is applied to the signals in each time unit on a transmission symbol basis, the transmission symbol including an OFDMA symbol or an SC-FDMA symbol; and an apparatus therefor.

    Interference cancellation method in wireless communication system, and terminal

    公开(公告)号:US10028169B2

    公开(公告)日:2018-07-17

    申请号:US15326017

    申请日:2015-08-06

    Abstract: The present specification provides a method for receiving data through interference cancellation. The method can comprise the steps of: receiving a transmission signal transmitted by a DMRS-based transmission method; detecting, from the transmission signal, a DMRS-based transmission parameter for an interference cell having caused interference in the transmission signal; estimating an interference channel for the interference cell on the basis of the detected DMRS-based transmission parameter; generating an interference signal for the interference cell on the basis of the estimated interference channel; and cancelling the generated interference signal from the transmission signal so as to restore data transmitted by a serving cell.

    METHOD FOR DOWNLINK BEAMFORMING IN WIRELESS ACCESS SYSTEM AND DEVICE THEREFOR
    117.
    发明申请
    METHOD FOR DOWNLINK BEAMFORMING IN WIRELESS ACCESS SYSTEM AND DEVICE THEREFOR 有权
    无线接入系统中的下行链路波束形成方法及其设备

    公开(公告)号:US20150092875A1

    公开(公告)日:2015-04-02

    申请号:US14395796

    申请日:2013-04-15

    Abstract: A method for downlink beamforming in a wireless access system and a device therefor are disclosed. Specifically, the method comprises the following steps: transmitting, by an eNB, a reference signal to a UE through only a first antenna set from among whole antennas; receiving, by the eNB, channel state information (CSI) for the first antenna set from the UE; and transmitting, by the eNB, beamforming a downlink channel by using a precoding matrix for the whole antennas, wherein CSI for a second antenna set by which the reference signal has not been transmitted from among the whole antennas is calculated using the CSI for the first antenna set.

    Abstract translation: 公开了一种用于无线接入系统中的下行链路波束成形的方法及其装置。 具体地说,该方法包括以下步骤:由eNB通过仅从整个天线中的第一天线组发送参考信号给UE; 由eNB接收来自UE的第一天线组的信道状态信息(CSI); 并且由eNB通过使用用于整个天线的预编码矩阵来发送对下行链路信道进行波束成形,其中使用用于第一个天线的CSI来计算在整个天线中尚未发送参考信号的第二天线组的CSI 天线组。

    Method, user equipment, device and storage medium for performing uplink transmission and method and base station for performing uplink reception

    公开(公告)号:US12267815B2

    公开(公告)日:2025-04-01

    申请号:US17428176

    申请日:2020-02-14

    Abstract: Provided are a method, a user equipment, a device and a recording medium in which: resource allocation information associated with a plurality of symbols is received; symbols which cannot be used for uplink transmission among the plurality of symbols are determined on the basis of the resource allocation information; and the uplink transmission is performed in at least one of the remaining symbols from the plurality of symbols excluding the symbols which cannot be used. The symbols which cannot be used comprise a symbol (DL symbol) in which a slot format is instructed as downlink (DL) and K non-DL symbols immediately after the DL symbol among the plurality of symbols. Each of the K non-DL symbols is a symbol in which a slot format is not instructed as DL, and K is an integer greater than 0.

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