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    COMMUNICATION DEVICE AND COMMUNICATION METHOD USING MILLIMETER-WAVE FREQUENCY BAND
    11.
    发明申请
    COMMUNICATION DEVICE AND COMMUNICATION METHOD USING MILLIMETER-WAVE FREQUENCY BAND 审中-公开
    通信设备和使用微波频带的通信方法

    公开(公告)号：US20140073337A1

    公开(公告)日：2014-03-13

    申请号：US14023050

    申请日：2013-09-10

    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: H04W72/12

    CPC classification number: H04W72/1231 ,  H01Q1/246 ,  H01Q21/205 ,  H04W72/046 ,  H04W72/1278

    Abstract: There are provided a communication device using a millimeter-wave frequency band and a communication method using the millimeter-wave frequency band. The communication device includes a beam scheduling unit configured to schedule uplink and downlink beams corresponding to movement of a terminal, a core network interface unit configured to transmit data provided from the beam scheduling unit to a core network, and to provide data received from the core network to the beam scheduling unit, a mobility management unit configured to configure an uplink and downlink beam set based on inter-beam interference information provided from the beam scheduling unit, and an inter-base station interface unit configured to exchange a control message with another base station under control of the mobility management unit. Therefore, it is possible to efficiently build a cellular network using the millimeter-wave frequency band.

    Abstract translation: 提供了使用毫米波频带的通信装置和使用毫米波频带的通信方法。 通信装置包括：波束调度单元，被配置为调度与终端的移动对应的上行链路和下行链路波束;核心网络接口单元，被配置为将从波束调度单元提供的数据发送到核心网络;以及提供从所述核心接收的数据 网络到波束调度单元，移动性管理单元，被配置为基于从波束调度单元提供的波束间干扰信息来配置上行链路和下行链路波束组;以及基站间接口单元，被配置为与另一个交换控制消息 基站由移动管理单元控制。 因此，可以有效地构建使用毫米波频带的蜂窝网络。

    METHOD AND APPARATUS FOR POSITIONING USING IMAGE AND RADIO SIGNALS
    12.
    发明申请
    METHOD AND APPARATUS FOR POSITIONING USING IMAGE AND RADIO SIGNALS 有权

    公开(公告)号：US20230101594A1

    公开(公告)日：2023-03-30

    申请号：US17563272

    申请日：2021-12-28

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Keun Young KIM ,  Seung Chan BANG ,  Young-Jo KO ,  Kapseok CHANG ,  Il Gyu KIM

    IPC: H04W4/029 ,  G06V20/50 ,  G01S5/02

    Abstract: A positioning method using images and radio waves may include: estimating a distance and an angle from the positioning reference node to a positioning target terminal; identifying an obstacle or reflective object in a vicinity of the positioning target terminal or on a path between the positioning target terminal and the positioning reference node by using image information on the positioning target terminal at a position estimated by the distance and the angle; estimating an incident angle or a reflection angle of a radio wave signal reflected by the reflective object identified based on the image information; and estimating a position of the positioning target terminal based on the reflection angle and the distance.

    METHOD FOR TRANSMITTING FRAME USING SELECTIVE BEAMFORMING AND APPARATUS FOR PERFORMING THE METHOD
    13.
    发明申请
    METHOD FOR TRANSMITTING FRAME USING SELECTIVE BEAMFORMING AND APPARATUS FOR PERFORMING THE METHOD 审中-公开

    公开(公告)号：US20190159040A1

    公开(公告)日：2019-05-23

    申请号：US16259058

    申请日：2019-01-28

    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.

    METHOD AND APPARATUS FOR GENERATING COMMON SIGNAL IN MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM
    16.
    发明申请
    METHOD AND APPARATUS FOR GENERATING COMMON SIGNAL IN MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM 审中-公开
    在多输入多输出系统中产生通用信号的方法和装置

    公开(公告)号：US20160105870A1

    公开(公告)日：2016-04-14

    申请号：US14881782

    申请日：2015-10-13

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Seok Ho WON ,  Suchang CHAE ,  Seyoung CHO ,  Il Gyu KIM ,  Seung Chan BANG

    IPC: H04W72/04 ,  H04B7/06 ,  H04B7/04

    CPC classification number: H04B7/0617 ,  H04B7/0413 ,  H04B7/0689

    Abstract: Provided is a method for generating, by a base station, a common signal commonly required for surrounding terminals of the base station in a massive multiple input multiple output (MIMO) system. The base station generates data commonly required for the surrounding terminals. The base station generates a plurality of beamforming vectors using a time-domain constant amplitude (TCA)-frequency-domain constant amplitude (FCA) sequence having a constant size in a time domain and a frequency domain. Further, the base station generates a plurality of antenna streams corresponding to the common signal by multiplying the plurality of beamforming vectors by the data.

    Abstract translation: 提供了一种用于在大量多输入多输出（MIMO）系统中由基站生成基站的周围终端通用所需的公共信号的方法。 基站生成周围终端通常需要的数据。 基站使用在时域和频域中具有恒定大小的时域恒定幅度（TCA） - 频域 - 恒定幅度（FCA）序列来生成多个波束形成向量。 此外，基站通过将多个波束成形向量乘以数据，生成与公共信号对应的多个天线流。

    APPARATUS AND METHOD FOR MODULATING DATA MESSAGE BY EMPLOYING ORTHOGONAL VARIABLE SPREADING FACTOR (OVSF) CODES IN MOBILE COMMUNICATION SYSTEM
    18.
    发明申请
    APPARATUS AND METHOD FOR MODULATING DATA MESSAGE BY EMPLOYING ORTHOGONAL VARIABLE SPREADING FACTOR (OVSF) CODES IN MOBILE COMMUNICATION SYSTEM 审中-公开
    通过在移动通信系统中使用正交可变扩展因子（OVSF）编码调制数据消息的装置和方法

    公开(公告)号：US20150030055A1

    公开(公告)日：2015-01-29

    申请号：US14484533

    申请日：2014-09-12

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Seung Chan BANG ,  Tae Joong KIM ,  Jae Heung KIM ,  Jung Im KIM ,  Jong Suk CHAE ,  Hyuck Jae LEE ,  Jae Ryong SHIM ,  Narm Hee LEE

    IPC: H04B1/7073 ,  H04J13/10 ,  H04J13/20 ,  H04J13/00

    CPC classification number: H04B1/7073 ,  H04B2201/70703 ,  H04J13/0044 ,  H04J13/10 ,  H04J13/20

    Abstract: A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal.

    Abstract translation: 一种用于在移动站中将源数据转换为具有多对同相（I）和正交相位（Q）数据的信道调制信号的方法，其中移动站使用至少一个信道，包括步骤 ：a）对源数据进行编码以生成至少一个数据部分和控制部分; b）产生要分配给该信道的至少一个扩展码，其中基于数据部分和控制部分的数据速率选择每个扩展码，并且选择扩展码，使得两个连续的I和 Q数据对应于位于同一点上的两个点或相对于相位域上的零点对称的点; 以及c）通过使用扩展码扩展控制部分和数据部分，从而生成信道调制信号。

    TERMINAL AND BASE STATION IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE HIERARCHICAL CELLS AND COMMUNICATION METHOD OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE HIERARCHICAL CELLS
    19.
    发明申请
    TERMINAL AND BASE STATION IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE HIERARCHICAL CELLS AND COMMUNICATION METHOD OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE HIERARCHICAL CELLS 审中-公开
    具有多个分层细胞的无线通信系统中的终端和基站和具有多个分层细胞的无线通信系统中的终端的通信方法

    公开(公告)号：US20140242998A1

    公开(公告)日：2014-08-28

    申请号：US14191313

    申请日：2014-02-26

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Don Sung OH ,  Min Ho CHEONG ,  Sok Kyu LEE ,  Seung Chan BANG

    IPC: H04W36/26

    CPC classification number: H04W36/26 ,  H04W36/04

    Abstract: Disclosed are handover and connection of a terminal and control of connection of a terminal by a base station in a communication environment including a plurality of communication cells having different ranges of communication coverage. According to an exemplary embodiment, a terminal of a wireless communication system including a plurality of hierarchical cells determines whether the terminal accesses a microcell in a macrocell as the terminal moves based on whether a control signal transmitted from a micro-base station managing the microcell is detected in a communication environment including a plurality of hierarchical cells divided according to communication coverage, determines whether the terminal connects to the microcell based on a connection criteria for the microcell, and connects to the microcell when the connection criteria for the microcell are satisfied and conducts communications using the macrocell when the connection criteria for the microcell are not satisfied.

    Abstract translation: 本发明公开了一种终端的切换和连接以及在包括具有不同通信覆盖范围的多个通信小区的通信环境中基站对基站的连接的控制。 根据示例性实施例，包括多个分层小区的无线通信系统的终端基于从管理微小区的微基站发送的控制信号是否为终端移动，确定终端是否接入宏小区中的微小区 在包括根据通信覆盖分割的多个分层小区的通信环境中检测到的，基于微小区的连接标准来确定终端是否连接到微小区，并且当满足微小区的连接标准时，连接到微小区，并进行 当微小区的连接标准不满足时使用宏小区的通信。

    METHOD AND APPARATUS FOR DETECTING COLLISION IN WIRELESS MULTI-ACCESS CHANNEL
    20.
    发明申请
    METHOD AND APPARATUS FOR DETECTING COLLISION IN WIRELESS MULTI-ACCESS CHANNEL 有权
    用于检测无线多路访问通道中的冲突的方法和装置

    公开(公告)号：US20140233411A1

    公开(公告)日：2014-08-21

    申请号：US14180569

    申请日：2014-02-14

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Sung Geun JIN ,  Byung Jae KWAK ,  Jin Kyeong KIM ,  Sung Cheol CHANG ,  Seung Chan BANG

    IPC: H04W74/08

    CPC classification number: H04L1/00 ,  H04L1/1607 ,  H04L1/201 ,  H04W74/00

    Abstract: A method and an apparatus for detecting a collision in a wireless multi-access channel are disclosed. The method of detecting the collision in the wireless multi-access according to an exemplary embodiment includes generating a request-to-send (RTS) message by a transmission terminal, transmitting the RTS message to a reception terminal, and receiving a response message from the reception terminal and determining whether a collision occurs based on a number of pieces of tone information included in the response message.

    Abstract translation: 公开了一种用于检测无线多址信道中的冲突的方法和装置。 根据示例性实施例的检测无线多址中的冲突的方法包括：生成发送终端的请求发送（RTS）消息，向接收终端发送RTS消息，以及从所述接收终端接收响应消息 接收终端，基于响应消息中包含的多个音调信息来确定是否发生冲突。

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