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公开(公告)号：US20140328430A1
公开(公告)日：2014-11-06
申请号：US14359731
申请日：2012-11-28
Applicant: LG ELECTRONICS INC.
Inventor： Jong Hyun Park , Hyang Sun You , Yong Ho Seok
CPC classification number: H04L27/2607 , H04L1/0042 , H04L1/0075 , H04L5/0048 , H04L25/0224 , H04L27/2613
Abstract: Disclosed are a method and apparatus for transmitting a training field. The method for transmitting a training field in a wireless LAN system comprises the steps of: transmitting additional long training field (LTF) indication information; and transmitting a frame including the additional LTF and partitioned data fields. The additional LTF comprises a field for demodulating the partitioned data fields included in the frame, the additional LTF indication information includes information on the location of the additional LTF included in the frame, and the partitioned data field includes at least one sub-field. Accordingly, the present invention can enhance channel estimation performance.
Abstract translation: 公开了一种用于发送训练场的方法和装置。 用于在无线LAN系统中发送训练场的方法包括以下步骤：发送附加的长训练场（LTF）指示信息; 以及发送包括附加LTF和分区数据字段的帧。 附加LTF包括用于解调包括在帧中的分割数据字段的字段，附加LTF指示信息包括关于包括在帧中的附加LTF的位置的信息，并且分割数据字段包括至少一个子字段。 因此，本发明可以增强信道估计性能。
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102.发明申请公开(公告)号：US20140313936A1
公开(公告)日：2014-10-23
申请号：US14354860
申请日：2012-11-19
Applicant: LG ELECTRONICS INC.
Inventor： Hyang Sun You , Yong Ho Seok , Ji Hyun Lee
CPC classification number: H04L1/1685 , H04L67/16 , H04W48/14 , H04W84/12
Abstract: Method and device for discovering a service are provided. A responding device receives a service request frame including a first service identifier indicating a service queried by the requesting device. The responding device transmits a service response frame to indicate that the queried service is currently not available and a service announce frame follows on. The responding device determines whether the queried service is accepted or not during a pre-defined time after transmitting the service response frame.
Abstract translation: 提供了一种用于发现服务的方法和设备。 响应设备接收包括指示请求设备查询的服务的第一服务标识符的服务请求帧。 响应设备发送服务响应帧以指示查询服务当前不可用并且服务通告帧跟随。 在发送服务响应帧之后的预定义时间期间，响应设备确定查询服务是否被接受。
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公开(公告)号：US20140247838A1
公开(公告)日：2014-09-04
申请号：US14353015
申请日：2012-10-18
Applicant: LG ELECTRONICS INC.
Inventor： Yong Ho Seok , Hyang Sun You , Jong Hyun Park
CPC classification number: H04L69/22 , H04L1/0003 , H04L1/0028 , H04L1/0033 , H04L1/0039 , H04L1/16 , H04L1/1621 , H04L5/0055 , H04L5/0091 , H04L27/2602 , H04L27/2613 , H04L69/321 , H04W48/20 , H04W74/00 , H04W84/12 , Y02D70/00 , Y02D70/142 , Y02D70/21
Abstract: Disclosed are a method and an apparatus for indicating a frame type using a physical layer convergence protocol header. A method for determining a frame type using a PLCP header may comprise: a step of demodulating a frame type contained in an SIG of the PLCP header so as to acquire information indicating a physical service data unit (PSDU) of a frame; and a step of acquiring frame information required for demodulating the frame contained in the SIG dependently on the information indicating PSDU. Thus, unnecessary information may not be additionally demodulated to thereby improve demodulation efficiency and reduce unnecessary power consumption.
Abstract translation: 公开了一种使用物理层汇聚协议报头指示帧类型的方法和装置。 一种使用PLCP头部确定帧类型的方法可以包括：解调包含在PLCP头部的SIG中的帧类型以获取指示帧的物理服务数据单元（PSDU）的信息的步骤; 以及根据指示PSDU的信息获取解调包含在SIG中的帧所需的帧信息的步骤。 因此，不需要附加地解调不必要的信息，从而提高解调效率并减少不必要的功耗。
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公开(公告)号：US20140247824A1
公开(公告)日：2014-09-04
申请号：US14351134
申请日：2012-10-11
Inventor： Ill Soo Sohn , Han Bae Kong , Chang Ick Song , Hae Wook Park , Yong Ho Seok , Inkyu Lee
IPC: H04L27/26
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.
Abstract translation: 提供了一种在WLAN系统中处理上行链路（UL）信号的方法和设备。 接入点（AP）在多个STA中从一个站（STA）接收发送（RTS）帧的请求，发送用于执行UL多用户多输入多输入多播的STA的组的组标识符（ID） 在一个STA所属的组的组ID中，与一个STA一起输出（MU-MIMO）传输，并从执行UL MU-MIMO传输的STA接收UL信号，使得接收到的UL信号被处理。
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公开(公告)号：US11129160B2
公开(公告)日：2021-09-21
申请号：US16415431
申请日：2019-05-17
Applicant: LG ELECTRONICS INC.
Inventor： Yu Jin Noh , Byeong Woo Kang , Dae Won Lee , Yong Ho Seok
Abstract: A method of transmitting a plurality of data units by a station in a wireless local area network (WLAN), includes performing, by the station, a clear channel assessment (CCA) on a bandwidth of an initial data unit of the plurality of data units; after performing the CCA, transmitting, by the station which has obtained a transmission opportunity (TXOP) for the plurality of data units, the initial data unit of the plurality of data units during the TXOP, wherein the initial data unit comprises a signal field including information on the bandwidth of the initial data unit; selecting, by the station, a bandwidth of a non-initial data unit of the plurality of data units to be narrower than the bandwidth of the initial data unit; and transmitting, by the station during the TXOP, the non-initial data unit, wherein the non-initial data unit comprises a signal field including information on the bandwidth of the non-initial data unit.
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Patent Agency Ranking
106.发明授权公开(公告)号：US10405301B2
公开(公告)日：2019-09-03
申请号：US15827747
申请日：2017-11-30
Applicant: LG ELECTRONICS INC.
Inventor： Yu Jin Noh , Dae Won Lee , Byeong Woo Kang , Bong Hoe Kim , Yong Ho Seok
IPC: H04W72/04 , H04L5/00 , H04B7/04 , H04L29/12 , H04L29/06 , H04L29/08 , H04W72/08 , H04B7/0413 , H04W84/12 , H04W28/06 , 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.
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公开(公告)号：US10291350B2
公开(公告)日：2019-05-14
申请号：US15459438
申请日：2017-03-15
Applicant: LG ELECTRONICS INC.
Inventor： Dae Won Lee , Byeong Woo Kang , Yu Jin Noh , Yong Ho Seok , Dong Wook Roh
IPC: H04L1/00 , H04B7/0452 , H04L1/06 , H04L27/26 , H04W84/12 , H04B7/0413 , H04L5/00 , H04L25/02
Abstract: A method of receiving a packet in a wireless local area network system includes receiving, from an access point (AP), a packet comprising a data field and a first signal field including a first field, a second field, and a third field, wherein the packet is generated for a single receiving station or a plurality of receiving stations; and processing the packet based on the first signal field, wherein the first field indicates a group ID of the single receiving station or the plurality of receiving stations and whether the packet is generated based on a single user transmission scheme or a multi user transmission scheme, wherein, for the single user transmission scheme, at least one pre-determined value of the first field is used to indicate that the packet is generated based on the single user transmission scheme.
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公开(公告)号：US10172030B2
公开(公告)日：2019-01-01
申请号：US14965148
申请日：2015-12-10
Applicant: LG ELECTRONICS INC.
Inventor： Dae Won Lee , Byeong Woo Kang , Yong Ho Seok , Dong Wook Roh
Abstract: A method of transmitting information on a modulation and coding scheme (MCS) in a wireless local area network system is provided. A responding station receives a physical layer protocol data unit (PPDU) from a requesting station, configures a MCS feedback (MFB) based on the PPDU, and transmits feedback information to the requesting station. If the MFB is configured as a response to a MFB request (MRQ) of the requesting station, the feedback information includes the configured MFB and a MFB type field indicating that the MFB is configured as a response to the MRQ of the requesting station. If the MFB is not configured as a response to the MRQ of the requesting station, the feedback information includes the configured MFB, a MFB type field indicating that the MFB is not configured as a response to the MRQ of the requesting station, and coding information indicating a PPDU coding type.
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公开(公告)号：US10085209B2
公开(公告)日：2018-09-25
申请号：US15498143
申请日：2017-04-26
Applicant: LG ELECTRONICS INC.
Inventor： Yu Jin Noh , Dae Won Lee , Yong Ho Seok
IPC: H04B7/0452 , H04W52/02 , H04W72/04 , H04W84/12
CPC classification number: H04W52/0216 , H04B7/0452 , H04W4/08 , H04W52/0235 , H04W72/044 , H04W72/0446 , H04W84/12 , Y02D70/142
Abstract: A communication method that includes transmitting a power save multi-poll (PSMP) frame containing a power save mode (PSM) of a non-access point (AP) station (STA) to a first station and to a second station which are paired with an AP on the basis of multiple input multiple output (MIMO) technology. Information on the PSM indicates the point in time of starting a downlink transmission period, the duration of the downlink transmission period, and transmission object station identification information. The method further involves transmitting a data frame to the first station and to the second station on the basis of the MIMO technology during the downlink transmission period. The transmission object station identification information indicates a group identifier for indicating an object station group including the first station and the second station.
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公开(公告)号：US10057036B2
公开(公告)日：2018-08-21
申请号：US15689117
申请日：2017-08-29
Applicant: LG ELECTRONICS INC.
Inventor： Dae Won Lee , Ill Soo Sohn , Yong Ho Seok
CPC classification number: H04L5/0053 , H04B7/0417 , H04B7/0452 , H04B7/0636 , H04L1/1812 , H04L5/0023 , H04W16/28 , H04W84/12
Abstract: A method is provided for communications between a responding station and a requesting station. In a wireless local area network, the responding station receives a null data packet announcement (NDPA) frame and a null data packet (NDP) frame for channel sounding, and a first poll frame, from the requesting station. The NDP frame follows the NDPA frame. In response to the first poll frame, the responding station transmits a first feedback data field including beamforming feedback information and signal to noise ratio (SNR) information to the requesting station. The responding station receives a second poll frame including a segment retransmission bitmap field indicating at least one segment of the first feedback data field from the requesting station. In response to the second poll frame, the responding station transmits a second feedback data field including the at least one segment of the first feedback data field to the requesting station.
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