公开(公告)号：US09876661B2

公开(公告)日：2018-01-23

申请号：US15352227

申请日：2016-11-15

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/0413 ,  H04W72/04 ,  H04W52/02 ,  H04L1/18 ,  H04W80/02 ,  H04W84/12 ,  H04W88/08

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 a transmitting station for transmitting data in a wireless local area network are discussed. The method according to an embodiment includes generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU), the PPDU including a Very High Throughput Signal (VHT-SIG) field and a PLCP Service Data Unit (PSDU); and transmitting the PPDU to a receiving station. The VHT-SIG field includes a class type and identification information, the class type indicates that the PPDU is transmitted by an access point (AP) or a non-AP station, the identification information includes a partial identifier formed from a Basic Service Set Identifier (BSSID), and the partial identifier has a length shorter than a length of the BSSID.

公开(公告)号：US09860713B2

公开(公告)日：2018-01-02

申请号：US14355178

申请日：2012-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok ,  Ji Hyun Lee

IPC: H04W4/06 ,  H04W68/00 ,  H04W74/04 ,  H04W74/00 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04W4/06 ,  H04W68/00 ,  H04W74/002 ,  H04W74/04 ,  H04W74/08 ,  H04W84/12

Abstract: The present invention relates to a method of informing of a service that is performed by a first station (STA) in a wireless LAN system. The method includes receiving a second service informing frame from a second STA, wherein the second service informing frame includes second service information that is the information on a service served by the second STA; and transmitting a first service informing frame. The first service informing frame includes first service information that is the information on a service served by the first STA, and the second service information.

公开(公告)号：US09854603B2

公开(公告)日：2017-12-26

申请号：US14947719

申请日：2015-11-20

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok

IPC: H04W74/00 ,  H04L5/00 ,  H04W74/08 ,  H04L25/02 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04W74/002 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0091 ,  H04L25/0224 ,  H04L27/2605 ,  H04W72/0406 ,  H04W74/0816 ,  H04W84/12

Abstract: A channel access method for a very high throughput (VHT) system using a bonding channel having a plurality of subchannels is provided. The method includes receiving training information comprising a training offset value through a subchannel, performing channel estimation on a full channel bandwidth comprising all subchannels when a time corresponding to the training offset value is elapsed after the training information is received, transmitting a request to send (RTS) frame to a destination station through some subchannels selected from the plurality of subchannels by one or a plurality of source stations according to a result of the channel estimation, and transmitting a clear to send (CTS) frame to one source station selected from the plurality of source stations by the destination station in response to the received RTS frame. Accordingly, an effective channel access mechanism is provided for the VHT system, and collision among stations can be avoided.

公开(公告)号：US09729367B2

公开(公告)日：2017-08-08

申请号：US14351134

申请日：2012-10-11

Applicant: LG ELECTRONICS INC. ,  Korea University Research and Business FOUNDATION

Inventor： Ill Soo Sohn ,  Han Bae Kong ,  Chang Ick Song ,  Hae Wook Park ,  Yong Ho Seok ,  Inkyu Lee

IPC: H04W4/00 ,  H04L27/26 ,  H04W74/00 ,  H04B7/0452 ,  H04W8/18

CPC classification number: H04L27/2601 ,  H04B7/0452 ,  H04W8/186 ,  H04W74/002

Abstract: Provided are a method and device for processing an uplink (UL) signal in a WLAN system. An access point (AP) receives a request to send (RTS) frame from one station (STA) among a plurality of STAs, transmits a group identifier (ID) of a group to which STAs for performing UL multi user multiple-input multiple-output (MU-MIMO) transmission together with the one STA, among group IDs of a group to which the one STA belongs, and receives UL signals from the STAs which perform the UL MU-MIMO transmission such that the received UL signals are processed.

公开(公告)号：US09699730B2

公开(公告)日：2017-07-04

申请号：US15091724

申请日：2016-04-06

Applicant: LG Electronics Inc.

Inventor： Yong Ho Seok ,  Hyang Sun You ,  Ji Hyun Lee

IPC: G08C17/00 ,  H04W52/02 ,  H04W84/12

CPC classification number: H04W52/0216 ,  H04W52/0206 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/21 ,  Y02D70/22

Abstract: Provided is a communication method by a station (STA) that operates in a power safe mode in a wireless LAN system. The method comprises: transmitting a probe request frame to an access point (AP), wherein the probe request frame includes system information identification information for identifying system information acquired by the STA; and receiving a probe response frame as a response to the probe request frame from the AP. The probe response frame includes a time stamp value related to the point of time of transmitting the probe response frame, and if it is determined, based on the system information identification information, that updated information which is not included in said acquired system information exists, the probe response frame further includes said updated information. Also provided is a communication method by an access point (AP) in a wireless LAN system. The method comprises: receiving a probe request frame from a station (STA), wherein the probe request frame includes information related to a wake-up duration time that is a time period in which the STA operates in an awake state; and transmitting a probe response frame to the STA as a response to the probe request frame. The probe response frame is transmitted within said wake-up duration time.

公开(公告)号：US09629129B2

公开(公告)日：2017-04-18

申请号：US15295417

申请日：2016-10-17

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok

IPC: H04L29/04 ,  H04W72/04 ,  H04B7/0452 ,  H04L27/26 ,  H04L1/00 ,  H04W84/12 ,  H04B7/06

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 and a transmitting station for transmitting data by using a multi-user multiple input multiple output (MU-MIMO) in a wireless local area network system are discussed. The method according to an embodiment includes transmitting a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including a bundled interface field, a modulation and coding scheme (MCS) index field and a data field. The bundled interface field indicates a number of at least one spatial stream allocated to each of a plurality of receiving stations and a total number of spatial streams allocated to the plurality of receiving stations. The MCS index field indicates a same MCS index used for modulating and coding the at least one spatial stream. The data field is modulated and coded by an MCS scheme indicated by the MCS index field and transmitted via the plurality of spatial streams indicated by the bundled interface field.

公开(公告)号：US09603148B2

公开(公告)日：2017-03-21

申请号：US14847879

申请日：2015-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok

IPC: H04W72/04 ,  H04W28/02 ,  H04W74/00 ,  H04W84/12

CPC classification number: H04W74/006 ,  H04W28/0236 ,  H04W28/0268 ,  H04W52/58 ,  H04W72/046 ,  H04W74/004 ,  H04W84/12

Abstract: A space division multiple access (SDMA) method is provided. The method may be performed by a station (STA), in a wireless local area network (WLAN) system. The method includes overhearing a third transmission response message transmitted by an access point (AP), and determining whether to access a channel on the basis of criteria information included in the third transmission response message.

公开(公告)号：US09603088B2

公开(公告)日：2017-03-21

申请号：US14579554

申请日：2014-12-22

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok

IPC: H04W52/02 ,  H04W74/06

CPC classification number: H04W52/0216 ,  H04L47/58 ,  H04W40/244 ,  H04W52/0206 ,  H04W74/06 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/168 ,  Y02D70/22

Abstract: A method for a wireless local area network. The method according to one embodiment is performed by an access point and includes receiving a power save (PS) poll on a first 20 MHz channel from a station operating in a power save mode; receiving at least one duplicated PS poll frame on at least one second 20 MHz channel from the station, the at least one duplicated PS poll frame including at least one duplicate of the PS poll frame; and transmitting a buffered frame to the station as a response to at least one of the PS poll frame and the at least one duplicated PS poll frame.

公开(公告)号：US09596682B2

公开(公告)日：2017-03-14

申请号：US15150004

申请日：2016-05-09

Applicant: LG Electronics Inc.

Inventor： Yong Ho Seok

IPC: H04W4/00 ,  H04W72/04 ,  H04W28/18 ,  H04L29/06 ,  H04L27/26 ,  H04B7/04 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04B7/0452 ,  H04L1/0061 ,  H04L5/0046 ,  H04L27/2602 ,  H04L69/22 ,  H04W28/18 ,  H04W72/0446 ,  H04W84/12 ,  H04W88/08

Abstract: A method of multi user multiple input multiple output (MIMO) communication in a wireless local area network (WLAN) system; and a transmitting device therefore are discussed. The method according to an embodiment includes generating an Aggregate-Medium Access Control Protocol Data Unit (A-MPDU) including an A-MPDU subframe, the A-MPDU subframe including a Medium Access Control Protocol Data Unit (MPDU) delimiter field; and selecting a type of a guard interval. When the A-MPDU is generated for a plurality of receiving devices, the transmitting device selects a short guard interval only if all of the plurality of receiving devices support the short guard interval. The MPDU delimiter field includes a null field and an MPDU length field, the null field indicates a corresponding A-MPDU subframe is used to pad the A-MPDU, and the MPDU length field indicates a length of an MPDU. The null field is a 1-bit information field.

Abstract translation: 一种无线局域网（WLAN）系统中多用户多输入多输出（MIMO）通信的方法; 因此讨论了发送装置。 根据实施例的方法包括生成包括A-MPDU子帧的聚合媒体接入控制协议数据单元（A-MPDU），所述A-MPDU子帧包括媒体接入控制协议数据单元（MPDU）定界符字段; 并选择一个保护间隔的类型。 当为多个接收设备生成A-MPDU时，发送设备仅在所有多个接收设备都支持短保护间隔时选择短保护间隔。 MPDU分隔符字段包括空字段和MPDU长度字段，空字段表示对应的A-MPDU子帧用于填充A-MPDU，并且MPDU长度字段指示MPDU的长度。 空字段是1位信息字段。

公开(公告)号：US09577744B2

公开(公告)日：2017-02-21

申请号：US14239740

申请日：2012-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok ,  Hyang Sun You ,  Jong Hyun Park

IPC: H04W4/06 ,  H04B7/26 ,  H04W56/00

CPC classification number: H04W4/06 ,  H04B7/2612 ,  H04W56/00 ,  H04W56/001 ,  H04W88/02 ,  H04W88/08

Abstract: Provided is a method for receiving a frame, which is to be performed by a station (STA) in a wireless LAN system. The method includes receiving a multicast frame from an access point (AP). The multicast frame includes a medium access control (MAC) header. The MAC header includes a transmitter address (TA) field and a receiver address (RA) field. The RA field includes a multicast association identifier for identifying an STA group including said STA.

Abstract translation: 提供了一种用于接收由无线LAN系统中的站（STA）执行的帧的方法。 该方法包括从接入点（AP）接收多播帧。 多播帧包括媒体访问控制（MAC）头。 MAC报头包括发送机地址（TA）字段和接收方地址（RA）字段。 RA字段包括用于识别包括所述STA的STA组的多播关联标识符。