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    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN A MIMO SYSTEM
    41.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN A MIMO SYSTEM 有权

    公开(公告)号：US20210126680A1

    公开(公告)日：2021-04-29

    申请号：US17128013

    申请日：2020-12-19

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jong-Ee OH ,  Minho CHEONG ,  Sok-Kyu LEE

    IPC: H04B7/0452 ,  H04L1/00 ,  H04L1/08

    Abstract: The present invention relates to a method and apparatus for transmitting and receiving data. A data transmission method from a sender terminal to a receiver terminal in a MIMO system using a variable frequency band according to one embodiment of the present invention comprises: repeatedly generating a signal field depending on a frequency band that is applied to the transmission of a data frame; generating a data field including the data; generating a data frame including the signal field and the data field; and transmitting the data frame to the receiver terminal. The present invention is advantageous in that a signal field which is transmitted together with the data being transmitted from the sender terminal to the receiver terminal in the MIMO system can be sent more efficiently.

    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING PACKET IN WIRELESS COMMUNICATION SYSTEM
    45.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING PACKET IN WIRELESS COMMUNICATION SYSTEM 审中-公开
    用于在无线通信系统中发送/接收分组的方法和装置

    公开(公告)号：US20160353411A1

    公开(公告)日：2016-12-01

    申请号：US15237000

    申请日：2016-08-15

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Yun-Joo KIM ,  Sok-Kyu LEE

    IPC: H04W72/00 ,  H04L29/06

    CPC classification number: H04W72/005 ,  H04L45/74 ,  H04L69/22 ,  H04W4/06 ,  H04W28/06 ,  H04W72/0406

    Abstract: A method for simultaneously transmitting packets having different lengths to two or more users in a wireless communication system includes: generating the packets to transmit to the respective users, the packets containing information on the maximum transmission length of the packets having different lengths; and simultaneously transmitting the generated packets to the respective users. The maximum transmission length is represented by the number of symbols, and each of the packets sequentially contains control information required for transmitting the packet, data, a tail field, and a PHY pad field, and is generated by inserting a MAC pad between the control information and the data such that the tail field and the PHY pad field are positioned at the last byte of the last symbol of the maximum transmission length.

    Abstract translation: 一种用于在无线通信系统中同时向两个或多个用户发送具有不同长度的分组的方法包括：生成要发送给各个用户的分组，所述分组包含关于具有不同长度的分组的最大传输长度的信息; 同时将生成的分组发送给各个用户。 最大传输长度由符号数表示，并且每个分组顺序地包含用于发送分组所需的控制信息，数据，尾部字段和PHY填充字段，并且通过在控制器之间插入MAC垫来生成 信息和数据，使得尾部场和PHY垫场位于最大传输长度的最后一个符号的最后一个字节。

    METHOD FOR SENDING/RECEIVING DATA IN A WIRELESS PACKET COMMUNICATION SYSTEM IN WHICH THERE IS SIMULTANEOUS COMMUNICATION WITH VARIOUS TERMINALS
    46.
    发明申请
    METHOD FOR SENDING/RECEIVING DATA IN A WIRELESS PACKET COMMUNICATION SYSTEM IN WHICH THERE IS SIMULTANEOUS COMMUNICATION WITH VARIOUS TERMINALS 审中-公开
    用于在具有各种端子的同时通信的无线分组通信系统中发送/接收数据的方法

    公开(公告)号：US20160197737A1

    公开(公告)日：2016-07-07

    申请号：US15067178

    申请日：2016-03-11

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jeeyon CHOI ,  Sok-Kyu LEE

    IPC: H04L12/18 ,  H04L5/00 ,  H04B7/04 ,  H04B5/00

    CPC classification number: H04L12/18 ,  H04B5/00 ,  H04B7/0452 ,  H04L1/0083 ,  H04L1/1887 ,  H04L5/0055 ,  H04L2001/0093 ,  H04W84/12 ,  H04W88/08

    Abstract: A method and apparatus for transmitting a frame to at least one receiver in a wireless communication system is provided. The apparatus determines at least one data length in accordance with each receiver based on a number of symbol for the frame to be transmitted, determines a maximum data length among the at least one data length, and determines a length of the frame in time domain based on the maximum data length. The apparatus generates the frame in accordance with the length of the frame, the frame including a first signal field and at least one second signal field. The first signal field indicates the length of the frame and each second signal field indicates each data length.

    Abstract translation: 提供了一种用于在无线通信系统中向至少一个接收机发送帧的方法和装置。 该装置根据每个接收机基于要发送的帧的符号的数量来确定至少一个数据长度，确定至少一个数据长度之间的最大数据长度，并确定基于时域的帧的长度 在最大数据长度上。 该装置根据帧的长度生成帧，该帧包括第一信号字段和至少一个第二信号字段。 第一信号字段指示帧的长度，每个第二信号字段指示每个数据长度。

    METHOD AND APPARATUS FOR CONTROLLING TRANSMISSINON POWER IN WLAN SYSTEM
    47.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING TRANSMISSINON POWER IN WLAN SYSTEM 审中-公开
    用于控制WLAN系统中的发射功率的方法和装置

    公开(公告)号：US20140233509A1

    公开(公告)日：2014-08-21

    申请号：US14265083

    申请日：2014-04-29

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Il-Gu LEE ,  Jeeyon CHOI ,  Sok-Kyu LEE

    IPC: H04W52/24

    CPC classification number: H04W52/242 ,  H04W24/08 ,  H04W52/243 ,  H04W52/267 ,  H04W84/12 ,  Y02D70/00

    Abstract: A transmit power control method of a first station in a wireless LAN (WLAN) system includes: receiving path loss information from an (access point) AP, the path loss information containing a maximum value among path losses between the AP and at least one or more stations included in the WLAN system; controlling a transmit power by using the path loss information; and transmitting a frame according to the controlled transmit power. In said controlling the transmit power by using the path loss information, the transmit power is controlled by using a path loss obtained by adding the maximum value and a path loss between the first station and the AP or by using the path loss between the first station and the AP.

    Abstract translation: 无线LAN（WLAN）系统中的第一站的发射功率控制方法包括：从（接入点）AP接收路径损耗信息，所述路径损耗信息包含AP与AP之间的路径损耗中的最大值， WLAN系统中包含更多的台站; 通过使用路径损耗信息来控制发射功率; 以及根据受控发射功率发送帧。 在通过使用路径损耗信息来控制发送功率时，通过使用通过将第一站和AP之间的最大值和路径损耗相加而获得的路径损耗或通过使用第一站点之间的路径损耗来获得发送功率 和AP。

    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING DATA IN COMMUNICATION SYSTEM
    49.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING DATA IN COMMUNICATION SYSTEM 有权
    用于在通信系统中发送和接收数据的装置和方法

    公开(公告)号：US20130188747A1

    公开(公告)日：2013-07-25

    申请号：US13717639

    申请日：2012-12-17

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Min-Ho CHEONG ,  Sok-Kyu LEE

    IPC: H04L25/02

    CPC classification number: H04L25/02 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0031 ,  H04L1/0675

    Abstract: An apparatus for transmitting data in a communication system includes: a receiving unit configured to receive feedback information for each of a plurality of stations (STAB) in response to a control frame; an adjusting unit configured to adjust links of the STAB at frequency channels based on the feedback information, and set optimal links for the respective STAB; and a transmitting unit configured to transmit data to the STAB through the optimal links, wherein the feedback information comprises one or more of optimal stream number information, optimal modulation and coding scheme (MCS) information, optimal bandwidth information, average signal-to-noise ratio (SNR) information, space-time information, optimal space-time block coding (STBC) information, group ID information, coding type information, and FB Tx type information.

    Abstract translation: 一种用于在通信系统中发送数据的装置，包括：接收单元，被配置为响应于控制帧接收多个站（STAB）中的每一个的反馈信息; 调整单元，被配置为基于所述反馈信息来调整所述STAB在频率信道上的链路，并且为所述STAB设置最佳链路; 以及发送单元，被配置为通过所述最佳链路向所述STAB发送数据，其中所述反馈信息包括最佳流号信息，最佳调制和编码方案（MCS）信息，最佳带宽信息，平均信噪比 比率（SNR）信息，时空信息，最佳时空块编码（STBC）信息，组ID信息，编码类型信息和FB Tx类型信息。

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