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    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM
    31.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20170188360A1

    公开(公告)日：2017-06-29

    申请号：US15457891

    申请日：2017-03-13

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Hee-Jung YU ,  Min-Ho CHEONG ,  Sok-Kyu LEE

    IPC: H04W72/04

    Abstract: A data transmission apparatus in a communication system includes a reception unit configured to receive terminal information from a plurality of terminals through a new frequency band for transmission and reception of data between the plurality of terminals and an AP (access point); a determination unit configured to determine access timing of the terminals to the AP by using the terminal information, and generate terminal access information including information on the access timing; and a transmission unit configured to transmit the terminal access information and beacon frames to the terminals, wherein the terminals access the AP and transmit data frames to the AP, at the access timing based on the beacon frames.

    METHOD FOR TRANSMITTING A RESPONSE REQUEST FRAME AND A RESPONSE FRAME IN A MULTI-USER BASED WIRELESS COMMUNICATION SYSTEM
    33.
    发明申请
    METHOD FOR TRANSMITTING A RESPONSE REQUEST FRAME AND A RESPONSE FRAME IN A MULTI-USER BASED WIRELESS COMMUNICATION SYSTEM 审中-公开
    在多用户无线通信系统中发送响应请求帧和响应帧的方法

    公开(公告)号：US20150305019A1

    公开(公告)日：2015-10-22

    申请号：US14755329

    申请日：2015-06-30

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Yun Joo KIM ,  Jee Yon CHOI ,  Sok-Kyu LEE

    IPC: H04W72/04

    CPC classification number: H04W72/0413 ,  H04L1/1854 ,  H04W28/04 ,  H04W72/0446 ,  H04W74/002 ,  H04W74/004 ,  H04W74/006 ,  H04W84/12

    Abstract: The present invention relates to a method for efficient transmission of a request frame such as an RTS/CTS frame and a response frame in response to the request frame in a multi-user based wireless communication system. The method of the present invention comprises: a process where wireless terminals transmit a response frame at their own response frame transmission time through a request frame that contains information about a plurality of wireless terminals and information about the response frame transmission time of the respective wireless terminals; a process where the respective wireless terminals transmit a response frame according to a token scheme such that the response frame is transmitted to a final access point; and a process where only a representative wireless terminal selected depending on a given wireless environment receives the response frame.

    Abstract translation: 本发明涉及一种用于在基于多用户的无线通信系统中响应于该请求帧而有效地传输诸如RTS / CTS帧和响应帧的请求帧的方法。 本发明的方法包括：无线终端通过包含关于多个无线终端的信息的请求帧在其自己的响应帧传输时间发送响应帧的过程和关于各个无线终端的响应帧传输时间的信息 ; 其中各个无线终端根据令牌方案发送响应帧，使得响应帧被发送到最终接入点; 以及仅根据给定无线环境选择的代表性无线终端接收到响应帧的处理。

    METHODS FOR TRANSMITTING A FRAME IN A MULTI-USER BASED WIRELESS COMMUNICATION SYSTEM
    35.
    发明申请
    METHODS FOR TRANSMITTING A FRAME IN A MULTI-USER BASED WIRELESS COMMUNICATION SYSTEM 审中-公开
    在多用户无线通信系统中发送帧的方法

    公开(公告)号：US20150180559A1

    公开(公告)日：2015-06-25

    申请号：US14633036

    申请日：2015-02-26

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Yun-Joo KIM ,  Jae-Seung LEE ,  Sok-Kyu LEE

    IPC: H04B7/04

    CPC classification number: H04B7/0452 ,  H04W4/08 ,  H04W8/186 ,  H04W84/12

    Abstract: The present invention relates to methods for transmitting a frame by grouping a plurality of wireless terminals in a multiuser based wireless communication system. The present invention includes a method for transmitting a frame by including information about multiple receiver terminals in a MAC frame, another method for transmitting a frame by allocating group addresses and then using a corresponding group address for frame transmission, and yet another method for transmitting a frame by using a unique group sequence number that is allocated to each group and group control information that contains bitmap information. The group control information is included in a destination address field of a MAC layer, or in a signal field of a physical layer, or in both the MAC layer and the physical layer.

    Abstract translation: 本发明涉及通过在多用户无线通信系统中对多个无线终端进行分组来发送帧的方法。 本发明包括一种通过在MAC帧中包含关于多个接收机终端的信息来发送帧的方法，用于通过分配组地址然后使用相应的组地址进行帧传输来发送帧的另一种方法，以及另一种用于发送帧 帧，通过使用分配给每个组的唯一组序列号和包含位图信息的组控制信息。 组控制信息包括在MAC层的目的地地址字段中，或者在物理层的信号字段中，或MAC层和物理层中。

    METHOD FOR TRANSMITTING CONTROL AND TRAINING SYMBOLS IN MULTI-USER WIRELESS COMMUNICATION SYSTEM
    36.
    发明申请
    METHOD FOR TRANSMITTING CONTROL AND TRAINING SYMBOLS IN MULTI-USER WIRELESS COMMUNICATION SYSTEM 审中-公开
    在多用户无线通信系统中传输控制和训练符号的方法

    公开(公告)号：US20150117429A1

    公开(公告)日：2015-04-30

    申请号：US14555457

    申请日：2014-11-26

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Yu-Ro LEE ,  Jung-Bo SON ,  Sok-Kyu LEE

    IPC: H04W72/04 ,  H04L1/06 ,  H04B7/04

    CPC classification number: H04W72/0406 ,  H04B7/0452 ,  H04L1/007 ,  H04L1/0072 ,  H04L1/0606 ,  H04L1/0612 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0073 ,  H04W28/04 ,  H04W28/06 ,  H04W28/22 ,  H04W48/08 ,  H04W80/04 ,  H04W84/12

    Abstract: The present invention relates to a method and an apparatus for transmitting control and training symbols to improve transmission efficiency in a multi-user wireless communication system. The method for transmitting the control and training symbols in the multi-user wireless communication system according to one embodiment of the present invention comprises the steps of: determining whether a required transmission rate of each data can be satisfied through channel estimation in each of terminals when different data are simultaneously transmitted to each of the terminals; and transmitting a data frame to each of the terminals, the data frame being composed to discriminate the control and training symbols in each of the terminals using a combination of time, frequency, and code area when the required transmission rate of each data is not satisfied according to the determined result.

    Abstract translation: 本发明涉及用于发送控制和训练符号以提高多用户无线通信系统中的传输效率的方法和装置。 根据本发明的一个实施例的用于在多用户无线通信系统中发送控制和训练符号的方法包括以下步骤：通过每个终端中的信道估计来确定是否可以满足每个数据的所需传输速率 不同的数据同时发送到每个终端; 并且向每个终端发送数据帧，所述数据帧被构成为当不满足每个数据的所需传输速率时，使用时间，频率和代码区域的组合来区分每个终端中的控制和训练符号 根据确定的结果。

    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM
    39.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM 有权

    公开(公告)号：US20130176986A1

    公开(公告)日：2013-07-11

    申请号：US13662316

    申请日：2012-10-26

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Hee-Jung YU ,  Min-Ho CHEONG ,  Sok-Kyu LEE

    IPC: H04W72/08

    CPC classification number: H04W72/0446 ,  H04W72/0406 ,  H04W72/08 ,  H04W74/02

    Abstract: A data transmission apparatus in a communication system includes a reception unit configured to receive terminal information from a plurality of terminals through a new frequency band for transmission and reception of data between the plurality of terminals and an AP (access point); a determination unit configured to determine access timing of the terminals to the AP by using the terminal information, and generate terminal access information including information on the access timing; and a transmission unit configured to transmit the terminal access information and beacon frames to the terminals, wherein the terminals access the AP and transmit data frames to the AP, at the access timing based on the beacon frames.

    METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION POWER IN WLAN SYSTEM
    40.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION POWER IN WLAN SYSTEM 有权

    公开(公告)号：US20230040710A1

    公开(公告)日：2023-02-09

    申请号：US17967949

    申请日：2022-10-18

    Applicant: Electronics and Telecommunications Research Institute

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

    IPC: H04W52/24 ,  H04W24/08 ,  H04W84/12 ,  H04W52/26

    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.

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