公开(公告)号：US20170195010A1

公开(公告)日：2017-07-06

申请号：US15462370

申请日：2017-03-17

Applicant: Electronics and Telecommunications Research Institute

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

IPC: H04B7/024 ,  H04B7/0456 ,  H04B7/0408

CPC classification number: H04B7/024 ,  H04B7/0408 ,  H04B7/0456 ,  H04W74/0816

Abstract: Disclosed is a protocol for transmitting data through cooperation between access points in an overlapped basic service set (OBSS) environment. A cooperative beamforming communication method may include negotiating, by a first access point, a cooperative transmit beamforming with a second access point having an OBSS area with the first access point; transmitting, by the first access point, a clear-to-send (CTS) to the second access point; and performing, by the first access point, the cooperative transmit beamforming with the second access point during a cooperative transmit beamforming duration determined through the negotiation after a predetermined time interval is elapsed, when transmission of the CTS is completed.

公开(公告)号：US20160365954A1

公开(公告)日：2016-12-15

申请号：US15061193

申请日：2016-03-04

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: H04L5/00 ,  H04B17/336

CPC classification number: H04L5/005 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0617 ,  H04B17/336 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0073 ,  H04L27/2613

Abstract: Disclosed are a frame transmission method and a communication device performing the same. The communication device may transmit a null data packet (NDP)-announcement (NDP-A) including information on a plurality of communication devices participating in interference alignment and transmit an NDP including a common signal field and a common training field commonly applied to the plurality of communication devices.

Abstract translation: 公开了一种帧发送方法和执行该帧发送方法的通信装置。 通信设备可以发送包括参与干扰对准的多个通信设备的信息的空数据分组（NDP-A），并且发送包括共同应用于多个的公共信号字段和公共训练场的NDP 的通信设备。

公开(公告)号：US20160212693A1

公开(公告)日：2016-07-21

申请号：US15071128

申请日：2016-03-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Seung LEE ,  Min Ho CHEONG ,  Je Hun LEE ,  Ja Beom GU ,  Jae Woo PARK ,  Sok Kyu LEE

IPC: H04W48/16 ,  H04W40/08 ,  H04W48/14

CPC classification number: H04W48/16 ,  H04W40/08 ,  H04W48/14 ,  H04W84/12 ,  H04W88/08

Abstract: A scanning method in a wireless local area network (WLAN) system is provided. The scanning method includes transmitting, by a station, a probe request frame and receiving, by the station, a probe response frame from an access point (AP). The AP determines whether to transmit the probe response frame in response to the probe request frame using information indicated by the probe request frame.

Abstract translation: 提供了一种无线局域网（WLAN）系统中的扫描方法。 扫描方法包括由站发送探测请求帧，并由所述站从接入点（AP）接收探测响应帧。 AP使用由探测请求帧指示的信息来确定是否响应于探测请求帧发送探测响应帧。

公开(公告)号：US20150288428A1

公开(公告)日：2015-10-08

申请号：US14681425

申请日：2015-04-08

Applicant: Electronics and Telecommunications Research Institute

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

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/04

CPC classification number: H04B7/024 ,  H04B7/0408 ,  H04B7/0456 ,  H04W74/0816

Abstract: Disclosed is a protocol for transmitting data through cooperation between access points in an overlapped basic service set (OBSS) environment. A cooperative beamforming communication method may include negotiating, by a first access point, a cooperative transmit beamforming with a second access point having an OBSS area with the first access point; transmitting, by the first access point, a clear-to-send (CTS) to the second access point; and performing, by the first access point, the cooperative transmit beamforming with the second access point during a cooperative transmit beamforming duration determined through the negotiation after a predetermined time interval is elapsed, when transmission of the CTS is completed.

Abstract translation: 公开了一种用于通过重叠基本服务集（OBSS）环境中的接入点之间的协作来发送数据的协议。 协作波束成形通信方法可以包括通过第一接入点与具有第一接入点的OBSS区域的第二接入点协商协作发射波束成形; 由所述第一接入点向所述第二接入点发送清除发送（CTS）; 以及当所述CTS的传输完成时，在通过所述协商确定的协作发射波束形成持续时间期间，通过所述第一接入点与所述第二接入点进行协同发射波束成形。

公开(公告)号：US20150117427A1

公开(公告)日：2015-04-30

申请号：US14521280

申请日：2014-10-22

Applicant: Electronics and Telecommunications Research Institute

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

IPC: H04W74/08

CPC classification number: H04L47/628 ,  H04W28/0263 ,  H04W72/00 ,  H04W72/12 ,  H04W74/00 ,  H04W84/12

Abstract: Provided is a data transmission apparatus including a queue management unit to manage at least one queue in which information associated with at least one buffer descriptor (BD) is stored, a scheduler to estimate information to be transmitted among information associated with at least one media access control (MAC) protocol data unit (MPDU) using at least one transmission bitmap (Tx bitmap), a data transmitter to read the estimated information from information associated with a BD indicated in the at least one Tx bitmap, and transmit the read information to a physical layer, and a physical layer management unit to generate information associated with a presentation protocol data unit (PPDU) based on the transmitted information, and transmit the generated information over the air, wherein the at least one BD includes information associated with the at least one MPDU.

Abstract translation: 提供了一种包括队列管理单元的数据传输装置，用于管理至少一个队列，其中存储与至少一个缓冲器描述符（BD）相关联的信息，调度器，用于估计与至少一个媒体访问相关联的信息之间要发送的信息 控制（MAC）协议数据单元（MPDU），使用至少一个传输位图（Tx位图），数据发送器从与至少一个Tx位图中指示的BD相关联的信息读取估计信息，并将读取的信息发送到 物理层和物理层管理单元，用于基于所发送的信息生成与呈现协议数据单元（PPDU）相关联的信息，并且通过空中传送所生成的信息，其中，所述至少一个BD包括与所述信息相关联的信息 至少一个MPDU。

公开(公告)号：US20140269656A1

公开(公告)日：2014-09-18

申请号：US14174539

申请日：2014-02-06

Applicant: Electronics and Telecommunications Research Institute

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

IPC: H04B7/06 ,  H04B7/04

CPC classification number: H04B7/0617 ,  H04B7/0452

Abstract: Provided is a data transmission method and system in a wireless local area network (WLAN) supporting a multi-user multiple-input and multiple-output (MU-MIMO), the method including determining a type of a first frame to be transmitted to at least one reception terminal, setting, based on a result of the determining, user identification (ID) information indicating an order of the at least one reception terminal, transmitting the first frame to the at least one reception terminal corresponding to the user ID information, receiving, from the at least one reception terminal, a second frame corresponding to the first frame, extracting, based on the received second frame, a beamforming parameter of the at least one reception terminal, and transmitting, to a physical (PHY) layer, the user ID information and the beamforming parameter corresponding to the at least one reception terminal.

Abstract translation: 提供了一种支持多用户多输入多输出（MU-MIMO）的无线局域网（WLAN）中的数据传输方法和系统，该方法包括确定要发送到的第一帧的类型 至少一个接收终端，基于所述确定的结果，设置指示所述至少一个接收终端的顺序的用户标识（ID）信息，将所述第一帧发送到与所述用户ID信息对应的所述至少一个接收终端， 从所述至少一个接收终端接收与所述第一帧相对应的第二帧，基于所接收的第二帧提取所述至少一个接收终端的波束成形参数，以及向物理（PHY）层发送， 用户ID信息和对应于该至少一个接收终端的波束成形参数。