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    ANTENNA APPARATUS AND METHOD FOR HANDOVER USING THE SAME
    21.
    发明申请
    ANTENNA APPARATUS AND METHOD FOR HANDOVER USING THE SAME 有权
    天线装置和使用该方法进行切换的方法

    公开(公告)号：US20140162655A1

    公开(公告)日：2014-06-12

    申请号：US14104377

    申请日：2013-12-12

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Seung Eun HONG ,  Moon Sik LEE ,  Young Seog SONG ,  Jun Hwan LEE ,  Eun Young CHOI ,  Il Gyu KIM ,  Seung Chan BANG

    IPC: H04W36/00 ,  H01Q21/06

    CPC classification number: H01Q21/061 ,  H01Q1/246 ,  H01Q21/065 ,  H01Q21/205 ,  H01Q21/22 ,  H01Q21/26 ,  H04B7/0617 ,  H04W16/28 ,  H04W36/0072

    Abstract: There are provided an antenna apparatus and a method of handover using the antenna apparatus. The antenna apparatus may comprise a plurality of antenna elements forming a plurality of beams in a predetermined service area. The plurality of antenna elements are arranged in a plurality of rows, and a number of antenna elements included in an uppermost row of the plurality of rows is smaller than a number of antenna elements included in a downmost row of the plurality of rows, and differences between center angles of beams formed by the antenna elements included in the downmost row are larger than differences between center angles of beams formed by the antenna elements included in the uppermost row.

    Abstract translation: 提供了使用天线装置的天线装置和切换方法。 天线装置可以包括在预定的服务区域中形成多个波束的多个天线元件。 多个天线元件被布置成多行，并且包括在多行的最上行中的多个天线元件小于多行中的最下行中包括的天线元件的数量，并且差异 包括在最下排中的天线元件形成的光束的中心角之间的差大于由最上面的行中包括的天线元件形成的光束的中心角之间的差。

    METHOD OF RECEIVING DOWNLINK DATA, AND MACHINE TYPE COMMUNICATION DEVICE USING THE METHOD
    22.
    发明申请
    METHOD OF RECEIVING DOWNLINK DATA, AND MACHINE TYPE COMMUNICATION DEVICE USING THE METHOD 有权
    接收下行链路数据的方法，以及使用该方法的机器类型的通信设备

    公开(公告)号：US20140010335A1

    公开(公告)日：2014-01-09

    申请号：US13904604

    申请日：2013-05-29

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jun Hwan LEE ,  Hee Sang CHUNG ,  Il Gyu KIM ,  Seung Chan BANG

    IPC: H04B7/08

    CPC classification number: H04B7/0808 ,  H04B17/318 ,  H04W4/70

    Abstract: Provided are a method of receiving downlink data and a machine type communication (MTC) device using the same. The MTC device according to the present invention which has a plurality of antennas includes a reception signal processing module that receives a downlink reference signal for each antenna from a base station, estimates reception signal quality with respect to the downlink reference signal for each antenna, and selects the antenna to receive a downlink signal in accordance with the reception signal quality with respect to each antenna.

    Abstract translation: 提供一种接收下行链路数据的方法和使用其的机器类型通信（MTC）设备。 根据本发明的具有多个天线的MTC设备包括接收信号处理模块，其从基站接收每个天线的下行链路参考信号，针对每个天线估计相对于下行链路参考信号的接收信号质量，以及 根据每个天线的接收信号质量选择天线接收下行链路信号。

    METHOD FOR TRANSMITTING FRAME USING SELECTIVE BEAMFORMING AND APPARATUS FOR PERFORMING THE METHOD
    26.
    发明申请
    METHOD FOR TRANSMITTING FRAME USING SELECTIVE BEAMFORMING AND APPARATUS FOR PERFORMING THE METHOD 有权

    公开(公告)号：US20210058798A1

    公开(公告)日：2021-02-25

    申请号：US17093836

    申请日：2020-11-10

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Yu Ro LEE ,  Jae Woo PARK ,  Jae Seung LEE ,  Jee Yon CHOI ,  Il Gyu KIM ,  Seung Chan BANG

    IPC: H04W16/28 ,  H04B7/06

    Abstract: Disclosed are a frame transmission method using a selective beamforming and a communication apparatus to perform the frame transmission method. The communication apparatus may determine a beamforming matrix based on classification information in which a plurality of subcarriers used for communication is classified into a plurality of frequency units, may map a long training field (LTF) sequence to the beamforming matrix, and transmit a beamforming training (BF-T) frame including the mapped LTF sequence to a plurality of stations, may receive, from the plurality of stations having receiving the BF-T frame, feedback information generated based on a reception strength of the BF-T frame, and may allocate frequency units to data frames to be transmitted to the plurality of stations based on the feedback information, and transmit the data frames using the allocated frequency units. The reception strength of the BF-T frame may be determined at each station for each frequency unit.

    GENERATING DOWNLINK FRAME AND SEARCHING FOR CELL
    28.
    发明申请
    GENERATING DOWNLINK FRAME AND SEARCHING FOR CELL 审中-公开

    公开(公告)号：US20190357127A1

    公开(公告)日：2019-11-21

    申请号：US16530994

    申请日：2019-08-02

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Kap Seok CHANG ,  Il Gyu KIM ,  Hyeong Geun PARK ,  Young Jo KO ,  Hyo Seok Yl ,  Chan Bok JEONG ,  Young Hoon KIM ,  Seung Chan BANG

    IPC: H04W48/16 ,  H04W56/00 ,  H04L27/26 ,  H04L7/04 ,  H04W72/04 ,  H04J11/00 ,  H04B7/26

    Abstract: The present application relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal; generating a third scrambling sequence determined by the first short sequence and a fourth scrambling sequence determined by the second short sequence; scrambling the short sequences with the respective scrambling sequences; and mapping the secondary synchronization signal that includes the first short sequence scrambled with the first scrambling sequence, the second short sequence scrambled with the second scrambling sequence and the third scrambling sequence, the second short sequence scrambled with the first scrambling sequence and the first short sequence scrambled by the second scrambling sequence and the fourth scrambling sequence to a frequency domain.

    METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK CONTROL INFORMATION IN MOBILE COMMUNICATION SYSTEM
    29.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK CONTROL INFORMATION IN MOBILE COMMUNICATION SYSTEM 审中-公开
    用于在移动通信系统中发送下行链路控制信息的方法和装置

    公开(公告)号：US20160192336A1

    公开(公告)日：2016-06-30

    申请号：US14984288

    申请日：2015-12-30

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Eun-Young CHOI ,  Juho PARK ,  Young Seog SONG ,  Jun Hwan LEE ,  Young Jo KO ,  Seung Chan BANG

    IPC: H04W72/04 ,  H04B7/04

    CPC classification number: H04W72/042 ,  H04B7/0695

    Abstract: A method for transmitting downlink control information in a base station that operates a plurality of beams in one cell includes: configuring an individual control channel region allocated to each of the plurality of beams; configuring a shared control channel region shared with first and second beams that are adjacent to each other among the plurality of beams; allocating a control channel of a terminal positioned in a service coverage of the first beam to one of an individual control channel region of the first beam and the shared control channel region shared with the first and second beams; and in a case where the control channel of the terminal is allocated to the shared control channel region shared with the first and second beams, forming the first and second beams such that user control information of the terminal is transmitted through the shared control channel region shared with the first and second beams.

    Abstract translation: 一种用于在一个小区中操作多个波束的基站中发送下行链路控制信息的方法包括：配置分配给多个波束中的每一个的单独控制信道区域; 配置与所述多个波束之间彼此相邻的第一和第二波束共享的共享控制信道区域; 将位于第一波束的服务覆盖范围内的终端的控制信道分配给与第一和第二波束共享的第一波束和共享控制信道区域的单独控制信道区域之一; 并且在终端的控制信道被分配给与第一和第二波束共享的共享控制信道区域的情况下，形成第一和第二波束，使得终端的用户控制信息通过共享的共享控制信道区域被发送 与第一和第二梁。

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