公开(公告)号：US08675597B2

公开(公告)日：2014-03-18

申请号：US13320709

申请日：2010-09-08

Applicant: Dae Won Lee ,  Dong Wook Roh ,  Byeong Woo Kang ,  Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim

Inventor： Dae Won Lee ,  Dong Wook Roh ,  Byeong Woo Kang ,  Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim

IPC: H04W72/04

CPC classification number: H04B7/0452 ,  H04B7/0671 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0226 ,  H04L25/03343 ,  H04W84/12

Abstract: There is provided a method of transmitting control information in a Wireless Local Area Network (WLAN) system, comprising transmitting first control information by means of cyclic shift delay diversity beam-forming and transmitting second control information. The first control information comprises information necessary for each of a plurality of target stations of the second control information to receive the second control information. The second control information beamformed and transmitted to the plurality of target stations.

Abstract translation: 提供了一种在无线局域网（WLAN）系统中发送控制信息的方法，包括：通过循环移位延迟分集波束形成和发送第二控制信息来发送第一控制信息。 第一控制信息包括用于接收第二控制信息的第二控制信息的多个目标站中的每一个所需的信息。 第二控制信息波束形成并发送到多个目标站。

公开(公告)号：US20130301463A1

公开(公告)日：2013-11-14

申请号：US13978847

申请日：2011-11-29

Applicant: Dae Won Lee ,  Yong Ho Seok

Inventor： Dae Won Lee ,  Yong Ho Seok

IPC: H04W48/08

CPC classification number: H04W48/12 ,  H04B7/0452 ,  H04W48/08 ,  H04W48/20 ,  H04W72/042 ,  H04W84/12

Abstract: A method and of transmitting management information, performed by an access point (AP), in a wireless local area network system is provided. The method includes transmitting, to a station, a frame including a BSS load information element, the BSS load element including a multi user (MU) multiple input multiple output (MIMO) capable STA count field and a plurality of bandwidth utilization fields, wherein the MU-MIMO capable STA count field indicates a total number of STAs with MU reception capability currently associated with a candidate BSS managed by the AP and the plurality of bandwidth untilization fields indicate whether a plurality of operating channel width are busy.

Abstract translation: 提供了一种在无线局域网系统中发送由接入点（AP）执行的管理信息的方法和方法。 该方法包括向站点发送包括BSS负载信息元素的帧，所述BSS负载元素包括具有多用户（MU）的具有多输入多输出多输出（MIMO）能力的STA计数字段和多个带宽利用场，其中， 具有MU-MIMO能力的STA计数字段指示当前与由AP管理的候选BSS相关联的具有MU接收能力的STA的总数，并且多个带宽直到字段指示多个操作信道宽度是否正在忙。

公开(公告)号：US20130208715A1

公开(公告)日：2013-08-15

申请号：US13879794

申请日：2011-10-27

Applicant: Dong Wook Roh ,  Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

Inventor： Dong Wook Roh ,  Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

IPC: H04W76/04

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0697 ,  H04L1/0025 ,  H04L1/0041 ,  H04L2001/0093 ,  H04W52/42 ,  H04W84/12

Abstract: A method of transmitting a data frame by a transmitter in a WLAN system is provided. The method includes generating a data block including at least one data units respectively transmitted through at least one or more spatial streams to at least one receiver, transmitting first control information to the at least one receiver, transmitting second control information to each receiver, and transmitting the data block to the at least one receiver. The first control information includes a length indicator for the data block, a MIMO indicator indicating whether the data block is for SU-MIMO or MU-MIMO, and a spatial stream indication field including information about the number of the spatial streams. The second control information includes a FEC coding field indicating an encoding scheme applied to the data unit and an MCS field indicating an MCS applied to the data unit.

公开(公告)号：US20130034091A1

公开(公告)日：2013-02-07

申请号：US13577879

申请日：2010-10-26

Applicant: Eun Sun Kim ,  Yong Ho Seok ,  Dae Won Lee

Inventor： Eun Sun Kim ,  Yong Ho Seok ,  Dae Won Lee

IPC: H04W84/12

CPC classification number: H04W52/16 ,  H04W16/14 ,  H04W72/0453 ,  H04W84/12

Abstract: A method for transmitting a physical protocol data unit Time (PPDU) in a wireless local area network (WLAN) is provide. The method includes generating a PPDU frame comprising a signal field and a data field and transmitting the PPDU frame, in which a transmission bandwidth for transmitting the signal field is fixed, but a transmission bandwidth for transmitting the data field is variable.

Abstract translation: 提供了一种用于在无线局域网（WLAN）中发送物理协议数据单元Time（PPDU）的方法。 该方法包括生成包括信号字段和数据字段的PPDU帧，并发送PPDU帧，其中用于发送信号字段的传输带宽是固定的，但是用于发送数据字段的传输带宽是可变的。

公开(公告)号：US20120327862A1

公开(公告)日：2012-12-27

申请号：US13603906

申请日：2012-09-05

Applicant: Dae Won Lee ,  Byeong Woo Kang ,  Yu Jin Noh ,  Bong Hoe Kim ,  Yong Ho Seok

Inventor： Dae Won Lee ,  Byeong Woo Kang ,  Yu Jin Noh ,  Bong Hoe Kim ,  Yong Ho Seok

IPC: H04W4/00

CPC classification number: H04L27/2602 ,  H04B7/0413 ,  H04L1/1812 ,  H04L5/0023 ,  H04L5/0091 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0241 ,  H04W72/0413 ,  H04W72/042 ,  H04W80/02 ,  H04W84/12 ,  H04W88/08 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: There is provided a method and apparatus for transmitting a frame which is performed by a transmission STA in a WLAN system. The method of transmitting a frame includes generating an MAC Protocol Data Unit (MPDU) to be transmitted to a target station, generating a PLCP Protocol Data Unit (PPDU) by attaching a Physical Layer Convergence Procedure (PLCP) header to the MPDU, and transmitting the PPDU to the target station. The PLCP header comprises a partial Association ID (AID) of the target station.

Abstract translation: 提供了一种用于发送由WLAN系统中的传输STA执行的帧的方法和装置。 发送帧的方法包括生成要发送到目标站的MAC协议数据单元（MPDU），通过将物理层汇聚过程（PLCP）报头附加到MPDU来生成PLCP协议数据单元（PPDU），以及发送 PPDU到目标站。 PLCP报头包括目标站的部分关联ID（AID）。

公开(公告)号：US20120269183A1

公开(公告)日：2012-10-25

申请号：US13500352

申请日：2011-11-23

Applicant: Ill Soo Sohn ,  Yong Ho Seok ,  Kyoung Young Song ,  Dae Won Lee ,  Byeong Woo Kang

Inventor： Ill Soo Sohn ,  Yong Ho Seok ,  Kyoung Young Song ,  Dae Won Lee ,  Byeong Woo Kang

IPC: H04W24/10 ,  H04W84/12

CPC classification number: H04L1/0003 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/06 ,  H04W24/10 ,  H04W72/04

Abstract: A method for reporting channel information in a wireless local area network system is provided. The method includes receiving a data block for requesting a modulation and coding scheme (MCS) feedback from a requesting station, the data block including a data field and a stream indicator indicating a number of at least one spatial stream in the data field; determining, the MCS feedback based on the data block; and, transmitting the MCS feedback to the requesting station, the MCS feedback including a recommended MCS and a recommended stream indicator indicating a number of at least one recommended spatial stream. The number of the at least one recommended spatial stream in the MCS feedback is equal or less than the number of the at least one spatial stream in the data block.

Abstract translation: 提供一种在无线局域网系统中报告信道信息的方法。 该方法包括从请求站接收用于请求调制和编码方案（MCS）反馈的数据块，所述数据块包括指示数据字段中的至少一个空间流的数目的数据字段和流指示符; 确定基于数据块的MCS反馈; 并且向所述请求站发送所述MCS反馈，所述MCS反馈包括推荐的MCS和指示至少一个推荐空间流的数量的推荐流指示符。 MCS反馈中的至少一个推荐空间流的数量等于或小于数据块中的至少一个空间流的数量。

公开(公告)号：US20120230448A1

公开(公告)日：2012-09-13

申请号：US13505382

申请日：2011-04-28

Applicant: Byeong Woo Kang ,  Yu Jin Noh ,  Dae Won Lee ,  Yong Ho Seok

Inventor： Byeong Woo Kang ,  Yu Jin Noh ,  Dae Won Lee ,  Yong Ho Seok

IPC: H04L27/04 ,  H04W84/12

CPC classification number: H04W72/085 ,  H03M13/23 ,  H03M13/2707 ,  H03M13/356 ,  H03M13/6527 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/0643 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L25/0204 ,  H04L27/2628 ,  H04W84/12

Abstract: A method of transmitting data in a wireless local area network is provided. The method includes the steps of: generating a data unit including a MAC (Medium Access Control) header and MSDU (MAC Service Data Unit), generating an encoded data unit by encoding the data unit, generating one or more spatial blocks by dividing the encoded data unit, dividing each of the one or more spatial block into a first block and a second block, generating a first interleaved block and a second interleaved block by interleaving the first block and the second block respectively, generating a first mapped sequence by mapping the first interleaved block into signal constellation, generating a second mapped sequence by mapping the second interleaved block into signal constellation, generating the transmission signal by performing IDFT (Inverse Discrete Fourier Transform) to the first mapped sequence and the second mapped sequence; and transmitting the transmission signal.

Abstract translation: 提供了一种在无线局域网中发送数据的方法。 该方法包括以下步骤：生成包括MAC（媒体访问控制）头部和MSDU（MAC服务数据单元）的数据单元，通过对数据单元进行编码来生成编码数据单元，通过将编码的 数据单元，将所述一个或多个空间块中的每一个划分为第一块和第二块，分别通过交织所述第一块和所述第二块来产生第一交织块和第二交织块，通过映射所述第一块和所述第二块来生成第一映射序列 将第一交错块转换为信号星座图，通过将第二交织块映射到信号星座图中产生第二映射序列，通过对第一映射序列和第二映射序列执行IDFT（逆离散傅立叶变换）生成发送信号; 并发送发送信号。

公开(公告)号：US10080140B2

公开(公告)日：2018-09-18

申请号：US13499473

申请日：2010-10-01

Applicant: Yong Ho Seok ,  Bong Hoe Kim ,  Dae Won Lee

Inventor： Yong Ho Seok ,  Bong Hoe Kim ,  Dae Won Lee

IPC: H04L27/26 ,  H04W16/14 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04W16/14 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2613 ,  H04W84/12

Abstract: A method of transmitting data in a WLAN system using a transmission frequency band including a plurality of frequency blocks includes generating a transmission information field, including at least one of information for timing acquisition of a frame, channel estimation information, and information for demodulation and decoding of the data, generating a plurality of transformed transmission information fields by multiplying the transmission information field by a transform sequence, and transmitting the plurality of transformed transmission information fields through the plurality of respective frequency blocks. The transform sequence comprises a plurality of transform values, and the plurality of transformed transmission information fields is generated by multiplying transmission information field by each of a plurality of transform values.

公开(公告)号：US09674890B2

公开(公告)日：2017-06-06

申请号：US13878173

申请日：2011-10-07

Applicant: Kyoung Young Song ,  Dae Won Lee ,  Yong Ho Seok

Inventor： Kyoung Young Song ,  Dae Won Lee ,  Yong Ho Seok

IPC: H04W84/12 ,  H04L1/16 ,  H04L1/00

CPC classification number: H04W84/12 ,  H04L1/0025 ,  H04L1/1671 ,  H04L1/1685

Abstract: A method of link adaptation in a wireless local area network is provided. The method includes requesting, by a requester, modulation and coding scheme (MCS) feedback to a plurality of responders, by transmitting a MCS request (MRQ) indicator, and, receiving, by the requester, feedback frames from each of the plurality of responders, wherein each of the feedback frame comprises MCS feedback (MFB) information.

公开(公告)号：US09161305B2

公开(公告)日：2015-10-13

申请号：US13992145

申请日：2011-10-11

Applicant: Suh Wook Kim ,  Yong Ho Seok ,  Bong Hoe Kim ,  Dae Won Lee

Inventor： Suh Wook Kim ,  Yong Ho Seok ,  Bong Hoe Kim ,  Dae Won Lee

IPC: H04W52/02 ,  H04W80/04 ,  H04W88/06 ,  H04W28/04 ,  H04W72/04 ,  H04W76/04

CPC classification number: H04L43/062 ,  H04W52/0206 ,  H04W52/0229 ,  H04W76/28 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/21

Abstract: A method for a power save mode operation in a wireless local area network (WLAN) system is provided. The method comprising determining a type of a receiving station (STA) indicator on the basis of the number of STAs which are associated with the AP and which intend to transmit buffered traffic; generating a traffic indicator map (TIM) element including information which indicates the receiving STA indicator and the type of the receiving STA indicator, transmitting the TIM element, receiving a poll frame for requesting data frame transmission from one STA among the STAs and transmitting the data frame to the STA.

Abstract translation: 提供了一种用于无线局域网（WLAN）系统中的省电模式操作的方法。 该方法包括：基于与AP相关联并且要发送缓冲业务的STA的数量来确定接收站（STA）指示符的类型; 产生包括指示接收STA指示符和接收STA指示符的类型的信息的传输指示符图（TIM）元素，发送TIM元素，从STA中的一个STA接收用于请求数据帧发送的轮询帧，并发送数据 帧到STA。