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    METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A MIMO SYSTEM
    21.
    发明申请
    METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A MIMO SYSTEM 审中-公开
    用于在MIMO系统中收发数据的方法和装置

    公开(公告)号：US20150222339A1

    公开(公告)日：2015-08-06

    申请号：US14687711

    申请日：2015-04-15

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jae Woo PARK ,  Jong Ee OH ,  IL-Gu LEE ,  Sok-kyu LEE ,  Min Ho CHEONG ,  Jee Yon CHOI ,  Jae Seung LEE ,  Yun Joo KIM

    IPC: H04B7/04 ,  H04L27/20

    CPC classification number: H04B7/0452 ,  H04B7/0413 ,  H04L1/0003 ,  H04L1/0061 ,  H04L1/0072 ,  H04L1/0075 ,  H04L1/0083 ,  H04L1/08 ,  H04L27/18 ,  H04L27/20 ,  H04L69/22 ,  H04L69/323 ,  H04Q2213/13215 ,  H04W84/12

    Abstract: The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal.

    Abstract translation: 本发明涉及用于收发数据的方法和装置。 根据本发明的一个实施例的发送终端向MIMO系统中的接收终端发送数据的方法包括以下步骤：产生包含数据的数据字段; 生成包含关于数据字段的信息的信号字段; 生成包含数据字段和信号字段的数据帧; 并将数据帧发送到接收终端。 根据本发明，在使用MIMO发送帧的通信系统中，正在发送的帧的结束被准确地通知给接收终端，从而在接收终端以更有效的方式对帧进行解码。

    UPLINK MULTI-USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT (UL MU-MIMO) TRANSMISSION REQUEST METHOD IN UL MU-MIMO COMMUNICATION
    23.
    发明申请
    UPLINK MULTI-USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT (UL MU-MIMO) TRANSMISSION REQUEST METHOD IN UL MU-MIMO COMMUNICATION 有权
    UL MU-MIMO通信中的上行多用户多输入和多输出（UL MU-MIMO）传输请求方法

    公开(公告)号：US20150016558A1

    公开(公告)日：2015-01-15

    申请号：US14329874

    申请日：2014-07-11

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jee Yon CHOI ,  Jae Woo PARK ,  Hyoung Jin KWON ,  Sok Kyu LEE

    IPC: H04B7/04

    CPC classification number: H04L45/74 ,  H04B7/0452 ,  H04B7/0617 ,  H04W72/0413 ,  H04W88/08

    Abstract: Provided is a method of transmitting and receiving a frame for a multi-user multiple-input and multiple-output (MU-MIMO) communication in an access point (AP), the method including transmitting, to each of a plurality of stations (STAs), an uplink multi-user request (UL MU request) frame requesting transmission of a data frame, and receiving, from each of the plurality of STAs, the data frame during an identical period of time based on an identical reception intensity, wherein the UL MU request frame includes at least one of information on a transmission time of the data frame and information on a reception intensity of the data frame in the AP.

    Abstract translation: 提供了一种在接入点（AP）中发送和接收用于多用户多输入和多输出（MU-MIMO）通信的帧的方法，所述方法包括向多个站（STA） ），请求传输数据帧的上行链路多用户请求（UL MU请求）帧，并且基于相同的接收强度在相同的时间段内从多个STA中的每一个接收数据帧，其中， UL MU请求帧包括关于数据帧的发送时间的信息和关于AP中的数据帧的接收强度的信息中的至少一个。

    METHOD FOR TRANSMITTING FRAME USING SELECTIVE BEAMFORMING AND APPARATUS FOR PERFORMING THE METHOD
    29.
    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：US20200053576A1

    公开(公告)日：2020-02-13

    申请号：US16659840

    申请日：2019-10-22

    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.

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