公开(公告)号：US20150223223A1

公开(公告)日：2015-08-06

申请号：US14686590

申请日：2015-04-14

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho SEOK

IPC: H04W72/04 ,  H04L27/26 ,  H04B7/04

CPC classification number: H04W72/0406 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0697 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0031 ,  H04L1/1607 ,  H04L27/2626 ,  H04W72/046 ,  H04W84/12

Abstract: A method of transmitting data by a multi-user multiple input multiple output (MU-MIMO) transmitter in a wireless local area network system. The method according to one embodiment includes generating a physical layer protocol data unit (PPDU), the PPDU including a bundled interface field, a modulation and coding scheme (MCS) index field and a data field; and transmitting the PPDU to a plurality of receiving stations. The bundled interface field indicates a number of one or more spatial streams allocated to the plurality of receiving stations. The MCS index field indicates a same MCS index used for modulating and coding all of the one or more spatial streams indicated by the bundled interface field. The data field is modulated and coded by an MCS scheme indicated by the MCS index field and transmitted via the one or more spatial streams indicated by the bundled interface field.

Abstract translation: 一种在无线局域网系统中由多用户多输入多输出（MU-MIMO）发射机发送数据的方法。 根据一个实施例的方法包括生成物理层协议数据单元（PPDU），PPDU包括捆绑接口字段，调制和编码方案（MCS）索引字段和数据字段; 以及将所述PPDU发送到多个接收站。 绑定的接口字段指示分配给多个接收站的一个或多个空间流的数量。 MCS索引字段指示用于调制和编码由捆绑接口字段指示的所有一个或多个空间流的相同的MCS索引。 通过由MCS索引字段指示的MCS方案对数据字段进行调制和编码，并经由捆绑接口字段指示的一个或多个空间流发送。

公开(公告)号：US20150223205A1

公开(公告)日：2015-08-06

申请号：US14685055

申请日：2015-04-13

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin NOH ,  Dae Won LEE ,  Byeong Woo KANG ,  Bong Hoe KIM ,  Yong Ho SEOK

IPC: H04W72/04

CPC classification number: H04W72/0406 ,  H04B7/0413 ,  H04L5/001 ,  H04L5/0033 ,  H04L5/0044 ,  H04L5/0094 ,  H04L61/6022 ,  H04L69/22 ,  H04L69/323 ,  H04L69/324 ,  H04W28/065 ,  H04W72/04 ,  H04W72/042 ,  H04W72/085 ,  H04W84/12 ,  H04W88/08

Abstract: According to one embodiment, a method for a wireless local area includes: generating a medium access control (MAC) protocol data unit (MPDU) to be transmitted to a target station; generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) by attaching a PLCP preamble to the MPDU; selecting a transmission channel; and transmitting the PPDU to the target station over the transmission channel. Selecting the transmission channel includes: performing clear channel assessment (CCA) on a first channel to determine whether the first channel is idle; and only after it is determined that the first channel is idle, selecting the first channel and at least one idle second channel as the transmission channel. The PLCP preamble includes channel allocation information indicating a bandwidth of the transmission channel.

Abstract translation: 根据一个实施例，一种用于无线局域的方法包括：产生要发送到目标站的介质访问控制（MAC）协议数据单元（MPDU）; 通过将PLCP前导码附加到MPDU来生成物理层融合过程（PLCP）协议数据单元（PPDU）; 选择传输信道; 并通过传输信道将PPDU发送到目标站。 选择传输信道包括：在第一信道上执行清除信道评估（CCA）以确定第一信道是否空闲; 并且仅在确定第一信道空闲之后，选择第一信道和至少一个空闲第二信道作为传输信道。 PLCP前导码包括指示传输信道的带宽的信道分配信息。

公开(公告)号：US20150215862A1

公开(公告)日：2015-07-30

申请号：US14677716

申请日：2015-04-02

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho SEOK

IPC: H04W48/20 ,  H04W28/02 ,  H04B7/04 ,  H04W48/10 ,  H04W72/04

CPC classification number: H04W48/20 ,  H04B7/0452 ,  H04W24/10 ,  H04W28/0215 ,  H04W48/10 ,  H04W72/048 ,  H04W72/0486 ,  H04W84/12

Abstract: A method of transmitting basic service set (BSS) load information. The method according to one embodiment includes establishing, by an access point (AP), an association with at least one very high throughput (VHT) station that has successfully synchronized with the AP and that has a capability of receiving at least one spatial stream of a plurality of spatial streams transmitted via a multi user-multiple input multiple output (MU-MIMO) transmission; and broadcasting, by the AP, a beacon frame that includes load information including a station count field and an antenna utilization field. The station count field indicates a number of the at least one VHT station that has successfully synchronized with the AP and that has the capability of receiving at least one spatial stream of the plurality of spatial streams. The antenna utilization field indicates information about spatial streams that are under-utilized in the MU-MIMO transmission.

Abstract translation: 一种发送基本业务集（BSS）负载信息的方法。 根据一个实施例的方法包括由接入点（AP）建立与已经与AP成功同步的至少一个非常高吞吐量（VHT）站的关联，并且具有接收至少一个空间流 通过多用户多输入多输出（MU-MIMO）传输发送的多个空间流; 以及由AP广播包括包括站计数字段和天线利用场的负载信息的信标帧。 站计数字段指示已经与AP成功同步的至少一个VHT站的数量，并且具有接收多个空间流中的至少一个空间流的能力。 天线利用场指示关于MU-MIMO传输中未充分利用的空闲流的信息。

公开(公告)号：US20150146708A1

公开(公告)日：2015-05-28

申请号：US14560971

申请日：2014-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won LEE ,  Dong Wook ROH ,  Byeong Woo KANG ,  Yong Ho SEOK ,  Yu Jin NOH ,  Bong Hoe KIM

IPC: H04L27/22

CPC classification number: H04L27/261 ,  H03M5/12 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/0061 ,  H04L25/4904 ,  H04L27/14 ,  H04L27/144 ,  H04L27/148 ,  H04L27/1563 ,  H04L27/22 ,  H04L27/2273 ,  H04L27/2331 ,  H04L27/2332 ,  H04L27/2613 ,  H04L27/2647 ,  H04L2027/0028 ,  H04N5/4401 ,  H04Q1/46 ,  H04W28/06 ,  H04W84/12

Abstract: A method of transmitting a Physical Layer Convergence Procedure (PLCP) frame in a Very High Throughput (VHT) Wireless Local Area Network (WLAN) system includes generating a MAC Protocol Data Unit (MPDU) to be transmitted to a destination station (STA), generating a PLCP Protocol Data Unit (PPDU) by adding a PLCP header, including an L-SIG field containing control information for a legacy STA and a VHT-SIG field containing control information for a VHT STA, to the MPDU, and transmitting the PPDU to the destination STA. A constellation applied to some of Orthogonal Frequency Division Multiplex (OFDM) symbols of the VHT-SIG field is obtained by rotating a constellation applied to an OFDM symbol of the L-SIG field.

Abstract translation: 一种在非常高吞吐量（VHT）无线局域网（WLAN）系统中发送物理层汇聚程序（PLCP）帧的方法包括生成要发送到目的站（STA）的MAC协议数据单元（MPDU） 通过将包含包含用于传统STA的控制信息的L-SIG字段和包含用于VHT STA的控制信息的VHT-SIG字段的L-SIG字段的PLCP头添加到MPDU来生成PLCP协议数据单元（PPDU），以及发送PPDU 到目的地STA。 通过旋转施加到L-SIG字段的OFDM符号的星座来获得应用于VHT-SIG字段的一些正交频分复用（OFDM）符号的星座。

公开(公告)号：US20150139137A1

公开(公告)日：2015-05-21

申请号：US14579286

申请日：2014-12-22

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho SEOK

IPC: H04W74/08

CPC classification number: H04W74/0816 ,  H04W4/20 ,  H04W72/0446 ,  H04W74/006

Abstract: A method for communicating in a wireless local area network. The method according to one embodiment includes transmitting, by a first station, a plurality of a request to send (RTS) frames to a second station through a plurality of subchannels; receiving, by the first station, at least one clear to send (CTS) frame; and transmitting, by the first station, a data frame to the second station. If the at least one CTS frame includes channel information indicating all of the at least one idle subchannel through which the at least one CTS frame is transmitted, the data frame is transmitted via the at least one idle subchannel indicated by the channel information, and if the at least one CTS frame does not include the channel information, the data frame is transmitted via at least one of the plurality of subchannels indicated by the plurality of RTS frames.

Abstract translation: 一种用于在无线局域网中进行通信的方法。 根据一个实施例的方法包括由第一站向多个子信道发送多个向第二站发送（RTS）帧的请求; 由第一站接收至少一个清除发送（CTS）帧; 以及由所述第一站向所述第二站发送数据帧。 如果至少一个CTS帧包括指示发送至少一个CTS帧的所有至少一个空闲子信道的信道信息，则经由由信道信息指示的至少一个空闲子信道发送数据帧，如果 至少一个CTS帧不包括信道信息，经由多个RTS帧指示的多个子信道中的至少一个发送数据帧。

公开(公告)号：US20150009979A1

公开(公告)日：2015-01-08

申请号：US14492975

申请日：2014-09-22

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin NOH ,  Dae Won LEE ,  Yong Ho SEOK

IPC: H04W28/06

CPC classification number: H04W28/065 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0085 ,  H04L27/2602 ,  H04W84/12

Abstract: A method and device for receiving a data block in a wireless communication system, the method performed by a receiver. The method includes: receiving a physical layer protocol data unit (PPDU) from a transmitter over an operating channel, the PPDU including a signal field, a Very High Throughput-Signal-A (VHT-SIG-A) field, a Very High Throughput-Signal-B (VHT-SIG-B) field and a padded data block, generating a first data block by removing zero or more physical padding bits from the padded data block in a physical layer; and generating a second data block by removing zero or more Medium Access Control (MAC) padding bits from the first data block in a MAC layer.

公开(公告)号：US20140362845A1

公开(公告)日：2014-12-11

申请号：US14466203

申请日：2014-08-22

Applicant: LG Electronics Inc.

Inventor： Dae Won LEE ,  Byeong Woo KANG ,  Yu Jin NOH ,  Bong Hoe KIM ,  Yong Ho SEOK

IPC: H04L27/26

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: A method and apparatus are described for transmitting data. The method includes generating, by an access point (AP), a Physical Layer Protocol Data Unit (PPDU) including a signal field and a data field, and transmitting, by the AP, the PPDU to a station. The signal field includes a reception target indicator and an identifier field. The reception target indicator indicates whether a target of the PPDU is the AP or the station. The identifier field includes a local AP identifier identifying the AP when the reception target indicator indicates that the target of the PPDU is the station.

Abstract translation: 描述了用于发送数据的方法和装置。 该方法包括由接入点（AP）生成包括信号字段和数据字段的物理层协议数据单元（PPDU），并且由AP将PPDU发送到站。 信号字段包括接收目标指示符和标识符字段。 接收目标指示符指示PPDU的目标是AP还是站。 当接收目标指示符指示PPDU的目标是站时，标识符字段包括标识AP的本地AP标识符。

公开(公告)号：US20140293916A1

公开(公告)日：2014-10-02

申请号：US14297483

申请日：2014-06-05

Applicant: LG ELECTRONICS INC.

Inventor： Ill Soo SOHN ,  Yong Ho SEOK ,  Kyoung Young SONG ,  Dae Won LEE ,  Byeong Woo KANG

IPC: H04W72/04 ,  H04W24/10

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

Abstract: A method and device for link adaptation in a wireless local area network system, are discussed. The method may include receiving, by a responding station, from a requesting station, a requesting Physical layer Protocol Data Unit (PPDU) for requesting a modulation and coding scheme (MCS) feedback via a plurality of spatial streams, the requesting PPDU including an MCS request (MRQ) field that is set to one to request the responding station to provide the MCS feedback; and transmitting, by the responding station, to the requesting station, the MCS feedback including a recommended MCS field and a recommended stream field. The recommended MCS field indicates a recommended MCS, the recommended stream field indicates a number of at least one recommended spatial stream, and the number of the at least one recommended spatial stream is less than a number of the plurality of spatial streams used for the requesting PPDU.

Abstract translation: 讨论了一种在无线局域网系统中进行链路自适应的方法和装置。 所述方法可以包括由响应站从请求站接收用于经由多个空间流请求调制和编码方案（MCS）反馈的请求物理层协议数据单元（PPDU），所述请求PPDU包括MCS 请求（MRQ）字段设置为1以请求响应站提供MCS反馈; 并且由响应站向请求站发送MCS反馈，其包括推荐的MCS字段和推荐流字段。 推荐的MCS字段指示推荐的MCS，推荐的流字段指示至少一个推荐的空间流的数量，并且至少一个推荐的空间流的数量小于用于请求的多个空间流的数量 PPDU。

公开(公告)号：US20140286327A1

公开(公告)日：2014-09-25

申请号：US14227993

申请日：2014-03-27

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won LEE ,  Yu Jin NOH ,  Byeong Woo KANG ,  Yong Ho SEOK

IPC: H04L27/26

CPC classification number: H04L69/323 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06 ,  H04L27/2626 ,  H04L27/2646 ,  H04L27/2647 ,  H04L27/28 ,  H04W84/12

Abstract: Methods and devices for transmitting or receiving data in a wireless local area network are provided. The method in one embodiment includes transmitting, by a transmitter, a first long training field (LTF) to a receiver; transmitting, by the transmitter, a very high throughput (VHT)-SIG-A field to the receiver; transmitting, by a transmitter, a second LTF for multiple input multiple output (MIMO) channel estimation to the receiver; transmitting, by the transmitter, a VHT-SIG-B field to the receiver; and transmitting, by the transmitter, a data field to the receiver, wherein the first LTF, the VHT-SIG-A field, the second LTF, the VHT-SIG-B field and the data field are sequentially transmitted, and wherein the second LTF and the data field are mapped to at least one spatial stream based on a mapping matrix but the first LTF and the VHT SIG-A field are not mapped to the at least one spatial stream.

Abstract translation: 提供了用于在无线局域网中发送或接收数据的方法和设备。 一个实施例中的方法包括由发射机向接收机发送第一长训练场（LTF）; 由发射机向接收机发射非常高的吞吐量（VHT）-SIG-A场; 由发射机向所述接收机发送用于多输入多输出（MIMO）信道估计的第二LTF; 由发射机向接收机发送VHT-SIG-B字段; 并且由所述发射机将数据字段发送到所述接收机，其中所述第一LTF，所述VHT-SIG-A字段，所述第二LTF，所述VHT-SIG-B字段和所述数据字段被顺序地发送，并且其中所述第二 基于映射矩阵将LTF和数据字段映射到至少一个空间流，但是第一LTF和VHT SIG-A字段未映射到至少一个空间流。

公开(公告)号：US20140219263A1

公开(公告)日：2014-08-07

申请号：US14202516

申请日：2014-03-10

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho SEOK

IPC: H04W48/20 ,  H04W24/10 ,  H04W84/12

CPC classification number: H04W48/20 ,  H04B7/0452 ,  H04W24/10 ,  H04W28/0215 ,  H04W48/10 ,  H04W72/048 ,  H04W72/0486 ,  H04W84/12

Abstract: A method for providing information of access point (AP) selection in a wireless local area network (WLAN) system, the method including receiving from candidate APs the AP selection information including channel correlation information for other stations associated with the candidate APs; and selecting one AP from candidate APs according to the channel correlation information corresponding to the candidate APs. Accordingly, a gain of multi-user multiple input multiple output (MIMO) can be increased, and an AP suitable for a terminal can be selected.

Abstract translation: 一种用于在无线局域网（WLAN）系统中提供接入点（AP）选择信息的方法，所述方法包括从候选AP接收包括与候选AP相关联的其他站的信道相关信息的AP选择信息; 以及根据与候选AP对应的信道相关信息从候选AP中选择一个AP。 因此，可以增加多用户多输入多输出（MIMO）的增益，并且可以选择适用于终端的AP。