公开(公告)号：WO2011112052A2

公开(公告)日：2011-09-15

申请号：PCT/KR2011001740

申请日：2011-03-11

Applicant: KOREA ELECTRONICS TELECOMM ,  PARK JAEWOO ,  OH JONG-EE ,  LEE IL-GU ,  LEE SOK-KYU ,  CHEONG MINHO ,  CHOI JEEYON ,  LEE JAE-SEUNG ,  KIM YUN-JOO

Inventor： PARK JAEWOO ,  OH JONG-EE ,  LEE IL-GU ,  LEE SOK-KYU ,  CHEONG MINHO ,  CHOI JEEYON ,  LEE JAE-SEUNG ,  KIM YUN-JOO

IPC: H04B7/04

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。

公开(公告)号：WO2011049360A2

公开(公告)日：2011-04-28

申请号：PCT/KR2010007183

申请日：2010-10-20

Applicant: KOREA ELECTRONICS TELECOMM ,  CHOI JEEYON ,  KIM YUN-JOO ,  LEE SOK-KYU

Inventor： CHOI JEEYON ,  KIM YUN-JOO ,  LEE SOK-KYU

IPC: H04L12/56 ,  H04W28/06

CPC classification number: H04W4/08 ,  H04L61/2069 ,  H04W8/186 ,  H04W8/26 ,  H04W84/12

Abstract: The present invention relates to a method for allocating a group address in a wireless LAN, a method for transmitting a response request frame and a response frame to a plurality of terminals, and a data transmission method using the same group address. The method for allocating the group address of the present invention comprises the steps of: transmitting a group agreement request frame including the group address (identifier) to terminals as grouping targets; and receiving a response frame corresponding to the group agreement request frame. The group agreement request frame includes group address (identifier) information and a terminal address as a destination address and is transmitted to a receiving terminal as a destination.

Abstract translation: 本发明涉及一种用于在无线LAN中分配组地址的方法，用于向多个终端发送响应请求帧和响应帧的方法以及使用相同组地址的数据传输方法。 用于分配本发明的组地址的方法包括以下步骤：将包括组地址（标识符）的组协议请求帧发送到终端作为分组目标; 并接收对应于组协议请求帧的响应帧。 组协议请求帧包括组地址（标识符）信息和作为​​目的地地址的终端地址，并被发送到作为目的地的接收终端。

公开(公告)号：WO2011065749A2

公开(公告)日：2011-06-03

申请号：PCT/KR2010008361

申请日：2010-11-24

Applicant: KOREA ELECTRONICS TELECOMM ,  KIM YUN-JOO ,  LEE JAE-SEUNG ,  LEE SOK-KYU

Inventor： KIM YUN-JOO ,  LEE JAE-SEUNG ,  LEE SOK-KYU

IPC: H04B7/04

CPC classification number: H04B7/0452 ,  H04W74/0816

Abstract: The present invention relates to a method for protecting MU-MIMO (Multi User-Multiple Input Multiple Output) data through a multi-RTS/CTS frame exchange in a MU-MIMO based wireless communication system. The method of the present invention comprises: a process where an indicator for VHT data protection is added to an RTS frame, using the structure of an RTS/CTS frame for an existing legacy terminal during the multi RTS/CTS frame exchange; a process where an access point designates and then transmits the duration period of the RTS frame while transmitting the RTS frame; and a process where wireless terminals up to the (n-1)th terminal designate the duration period of the CTS frame as '0' and send the designated duration period, while only the n-th wireless terminal designates NAV for data protection.

Abstract translation: 本发明涉及在基于MU-MIMO的无线通信系统中通过多RTS / CTS帧交换来保护MU-MIMO（多用户多输入多输出）数据的方法。 本发明的方法包括：在多RTS / CTS帧交换期间，使用RTS / CTS帧的结构为现有的传统终端，将用于VHT数据保护的指示符添加到RTS帧的过程; 其中接入点指定然后在发送RTS帧的同时发送RTS帧的持续时间段的过程; 以及直到第（n-1）个终端的无线终端将CTS帧的持续时间指定为“0”并发送指定的持续时间的过程，而仅第n个无线终端指定用于数据保护的NAV。

公开(公告)号：WO2010082784A3

公开(公告)日：2010-11-04

申请号：PCT/KR2010000267

申请日：2010-01-15

Applicant: KOREA ELECTRONICS TELECOMM ,  SONG YOO-SEUNG ,  LEE SOK-KYU

Inventor： SONG YOO-SEUNG ,  LEE SOK-KYU

IPC: H04W4/06 ,  H04W80/02 ,  H04W84/12

CPC classification number: H04W74/002 ,  H04W74/004 ,  H04W74/006

Abstract: A method for transmitting data to at least one station by an access point in a wireless communication network includes: broadcasting a multiuser ready-to-send (muRTS) message for a very high throughput (VHT) station; broadcasting a legacy RTS message for a legacy station; receiving a clear-to-send (CTS) message transmitted by the VHT station or the legacy station; and transmitting the data to the VHT station or the legacy station which has transmitted the CTS message.

Abstract translation: 一种用于无线通信网络中的接入点向至少一个站点发送数据的方法，包括：广播用于超高吞吐量（VHT）站点的多用户准备发送（muRTS）消息; 为传统站点广播传统RTS消息; 接收由所述VHT台或所述传统台发送的清除发送（CTS）消息; 并将该数据发送到已发送CTS消息的VHT站或传统站。

公开(公告)号：WO2011065743A3

公开(公告)日：2011-10-27

申请号：PCT/KR2010008351

申请日：2010-11-24

Applicant: KOREA ELECTRONICS TELECOMM ,  KIM YUN-JOO ,  LEE JAE-SEUNG ,  LEE SOK-KYU

Inventor： KIM YUN-JOO ,  LEE JAE-SEUNG ,  LEE SOK-KYU

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 multi-user 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来发送帧的另一种方法进行帧传输，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。

公开(公告)号：WO2011053026A3

公开(公告)日：2011-09-09

申请号：PCT/KR2010007494

申请日：2010-10-28

Applicant: KOREA ELECTRONICS TELECOMM ,  LEE IL-GU ,  LEE SOK-KYU ,  CHUNG HYUN-KYU ,  KIM DAE-SIK

Inventor： LEE IL-GU ,  LEE SOK-KYU ,  CHUNG HYUN-KYU ,  KIM DAE-SIK

IPC: H04W52/58

CPC classification number: H04W52/262 ,  H04B7/0626 ,  H04L1/1671 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0229 ,  Y02B60/50 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/26

Abstract: The present invention relates to a method for increasing the resource utilization rate and reducing power consumption in a high-speed wireless communication system and a control device. The method according to one embodiment of the present invention comprises a process for efficient utilization of a frequency band by including channel state information and data frame mode information in a request frame or an ack frame, before transmission in a wireless communication system. The method according to one embodiment of the present invention relates to a power saving method in a wireless communication system having at least two different transmission modes, the method comprising: a process of setting a mode in such a manner that a control frame is received in a mode with the lowest sampling speed out of three different modes available and then receiving the control frame in the set mode; and a process of setting a mode, after receiving the control frame, in such a manner that a data packet is transmitted / received in a mode with the highest transmission rate and then transmitting / receiving the data packet in the set mode.

Abstract translation: 本发明涉及一种提高高速无线通信系统和控制装置的资源利用率和降低功耗的方法。 根据本发明的一个实施例的方法包括在无线通信系统中传输之前通过在请求帧或确认帧中包括信道状态信息和数据帧模式信息来有效利用频带的过程。 根据本发明的一个实施例的方法涉及一种具有至少两种不同传输模式的无线通信系统中的功率节省方法，所述方法包括：以这样的方式设置模式的过程：控制帧被接收在 在三种不同模式中具有最低采样速度的模式，然后在设定模式下接收控制帧; 以及在接收到控制帧之后，以具有最高传输速率的模式发送/接收数据分组，然后在设置模式下发送/接收数据分组的方式来设置模式的处理。

公开(公告)号：WO2011065746A2

公开(公告)日：2011-06-03

申请号：PCT/KR2010008355

申请日：2010-11-24

Applicant: KOREA ELECTRONICS TELECOMM ,  KIM YUN-JOO ,  LEE JAE-SEUNG ,  LEE SOK-KYU

Inventor： KIM YUN-JOO ,  LEE JAE-SEUNG ,  LEE SOK-KYU

IPC: H04B7/04 ,  H04L1/16

CPC classification number: H04B7/0452 ,  H04L1/06 ,  H04L1/1685 ,  H04L1/1848

Abstract: The present invention relates to a method for recovering a frame that failed to be transmitted to a plurality of wireless terminals by using a group number in a MU-MIMO (Multi-User Multiple Input Multiple Output) based wireless communication system. Following the transmission of a frame that requests for a response including group control information to the plurality of wireless terminals, if a response frame is not normally received from a particular wireless terminal, a request frame is transmitted to the wireless terminal that has failed to receive the response frame as a destination, after a period of time for receiving the response frame from each of the plurality of wireless terminals that consists of a group. In another embodiment of the present invention, if the response frame is not normally received from a particular wireless terminal, a request frame is transmitted to wireless terminals starting from the wireless terminal that has failed to receive the response frame down to the last wireless terminal, in accordance with the transmission order of the response frame.

Abstract translation: 本发明涉及一种通过在基于MU-MIMO（多用户多输入多输出）的无线通信系统中使用组号来恢复未被发送到多个无线终端的帧的方法。 在向多个无线终端请求包括组控制信息的响应的帧的发送之后，如果从特定无线终端不正常地接收到响应帧，则向无法接收到的无线终端发送请求帧 在从由组成的多个无线终端中的每一个接收响应帧的时间段之后，响应帧作为目的地。 在本发明的另一个实施例中，如果从特定无线终端不正常地接收到响应帧，则从无法接收到最后无线终端的响应帧的无线终端发送到无线终端的请求帧， 按照响应帧的传输顺序。

公开(公告)号：WO2011074904A3

公开(公告)日：2011-11-03

申请号：PCT/KR2010009039

申请日：2010-12-16

Applicant: KOREA ELECTRONICS TELECOMM ,  CHOI JEEYON ,  LEE SOK-KYU

Inventor： CHOI JEEYON ,  LEE SOK-KYU

IPC: H04B7/26

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

Abstract: The present invention relates to a method for sending/receiving data in a wireless packet communication and more particularly a short-distance wireless communication system, when one terminal is attempting to communicate with various terminals simultaneously. A method of the present invention, in which a sending terminal sends data to a plurality of receiving terminals, comprises the steps of: determining the data item having the maximum length from among different items of data to be sent to the plurality of receiving terminals; acquiring length information about the data item having the maximum length; generating a signal field containing length information about the data item having the maximum length; and sending the signal field to the plurality of receiving terminals. The present invention has the advantageous effect that it can ensure that zones where reception is not possible are not created and smooth communication is possible when a single terminal uses various communications pathways to simultaneously transmit data to various terminals and receive an Ack thereto.

Abstract translation: 本发明涉及当一个终端正试图与各种终端同时进行通信时，在无线分组通信中更特别地是短距离无线通信系统发送/接收数据的方法。 一种发送终端向多个接收终端发送数据的方法，包括以下步骤：从要发送给多个接收终端的不同数据项中确定具有最大长度的数据项; 获取关于具有最大长度的数据项的长度信息; 产生包含关于具有最大长度的数据项的长度信息的信号字段; 并向多个接收终端发送信号字段。 本发明具有如下优点：即，当单个终端使用各种通信路径同时向各个终端发送数据并接收Ack时，可以确保不能接收到不可接收的区域，并且可以进行平滑的通信。

公开(公告)号：WO2011055990A3

公开(公告)日：2011-09-22

申请号：PCT/KR2010007740

申请日：2010-11-04

Applicant: KOREA ELECTRONICS TELECOMM ,  CHOI JEEYON ,  PARK JAEWOO ,  LEE SOK-KYU

Inventor： CHOI JEEYON ,  PARK JAEWOO ,  LEE SOK-KYU

IPC: H04B7/04 ,  H04B7/26

CPC classification number: H04W72/044 ,  H04B7/2656 ,  H04L1/0083 ,  H04L29/06068 ,  H04L69/08 ,  H04L69/22 ,  H04L69/324

Abstract: The present invention relates to a technique relating to a method and apparatus for generating, transmitting, and receiving a data frame having a newly proposed format in a wireless communication system. According to the technique, the method for generating a data frame in a wireless communication system comprises the following steps: generating at least one first subframe; generating at least one second subframe; and generating a data frame including the first and second subframes, wherein the first and second subframes include length information of a MAC protocol data unit (MPDU) contained in the first and second subframes, and the length information of the MPDU contained in the second subframe is zero.

Abstract translation: 本发明涉及一种涉及用于在无线通信系统中生成，发送和接收具有新提出的格式的数据帧的方法和设备的技术。 根据该技术，用于在无线通信系统中生成数据帧的方法包括以下步骤：生成至少一个第一子帧; 生成至少一个第二子帧; 以及生成包括所述第一和第二子帧的数据帧，其中所述第一和第二子帧包括包含在所述第一和第二子帧中的MAC协议数据单元（MPDU）的长度信息以及包含在所述第二子帧中的所述MPDU的长度信息 是零。

公开(公告)号：WO2011112054A2

公开(公告)日：2011-09-15

申请号：PCT/KR2011001742

申请日：2011-03-11

Applicant: KOREA ELECTRONICS TELECOMM ,  OH JONG-EE ,  CHEONG MINHO ,  LEE SOK-KYU

Inventor： OH JONG-EE ,  CHEONG MINHO ,  LEE SOK-KYU

IPC: H04B7/04

CPC classification number: H04B7/0452 ,  H04B7/0413 ,  H04L1/0083 ,  H04L1/0643 ,  H04L1/08 ,  H04L5/0007 ,  H04L5/003 ,  H04W28/06 ,  H04W84/12

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.

Abstract translation: 本发明涉及发送和接收数据的方法和装置。 根据本发明的一个实施例的使用可变频带的MIMO系统中的从发送者终端到接收终端的数据传输方法包括：根据应用于数据传输的频带重复产生信号场 帧; 生成包括数据的数据字段; 生成包括信号字段和数据字段的数据帧; 并将数据帧发送到接收机终端。 本发明的优点在于，可以更有效地发送与MIMO系统中的发送方终端发送到接收方终端的数据一起发送的信号场。