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21.发明授权Method for generating reference signal sequence in multi-antenna wireless communication system and apparatus for same 有权用于在多天线无线通信系统中产生参考信号序列的方法及其装置公开(公告)号：US09160429B2
公开(公告)日：2015-10-13
申请号：US14028352
申请日：2013-09-16
Applicant: LG ELECTRONICS INC.
Inventor： Bong Hoe Kim , Byeong Woo Kang , Dae Won Lee , Yu Jin Noh , Ki Jun Kim , Dong Wook Roh
CPC classification number: H04L5/0051 , H04B7/0413 , H04B7/0684 , H04J13/0003 , H04J13/0025 , H04J13/10 , H04L1/0675 , H04L5/0023 , H04L5/0028 , H04L5/0035 , H04L5/0037 , H04L5/0092 , H04L27/2613 , H04W8/26 , H04W72/042
Abstract: The present application discloses a method in which a base station transmits a reference signal sequence in a wireless communication system. In detail, the method comprises the steps of: generating a pseudo-random sequence using a first m-sequence and a second m-sequence; generating the reference signal sequence using the pseudo-random sequence; and transmitting the reference signal to a mobile station via antenna ports different from one another. The second m-sequence has an initial value containing parameters for discriminating reference signal sequences among users.
Abstract translation: 本申请公开了一种基站在无线通信系统中发送参考信号序列的方法。 具体而言，该方法包括以下步骤：使用第一m序列和第二m序列生成伪随机序列; 使用伪随机序列生成参考信号序列; 以及经由彼此不同的天线端口将参考信号发送到移动台。 第二m序列具有初始值，其包含用于在用户之间鉴别参考信号序列的参数。
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公开(公告)号：US09042331B2
公开(公告)日：2015-05-26
申请号：US14166621
申请日：2014-01-28
Applicant: LG ELECTRONICS INC.
Inventor： Dae Won Lee , Dong Wook Roh , Byeong Woo Kang , Yong Ho Seok , Yu Jin Noh , Bong Hoe Kim
CPC classification number: H04B7/0452 , H04B7/0413 , H04B7/0456 , H04B7/0473 , H04B7/0486 , H04B7/0617 , H04L5/0023 , H04L5/0091 , H04L5/0094 , H04L27/2613 , H04W72/0406 , H04W72/046 , 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.
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公开(公告)号：US08937922B2
公开(公告)日：2015-01-20
申请号：US14186721
申请日：2014-02-21
Applicant: LG Electronics Inc.
Inventor： Yu Jin Noh , Byeong Woo Kang , Dae Won Lee , Yong Ho Seok
CPC classification number: H04W72/0446 , H04B7/0452 , H04W28/20 , H04W72/04 , H04W72/0406 , H04W74/0808 , H04W84/12 , H04W88/02 , H04W88/08
Abstract: A method and station for receiving a data frame in a wireless local area network are provided. The method includes receiving, from a transmitter which has obtained a transmission opportunity (TXOP) for a bandwidth, a first data unit of a plurality of data units during the TXOP, the TXOP indicating an interval of time when the transmitter has a right to exchange frame sequences; and after receiving the first data unit, further receiving, from the transmitter, a second data unit of the plurality of data units during the TXOP, wherein a transmit bandwidth of the second data unit is selected from available bandwidths, wherein the available bandwidths include a first available bandwidth which is same as a transmit bandwidth of the first data unit and a second available bandwidth which is narrower than the transmit bandwidth of the first data unit.
Abstract translation: 提供了一种用于在无线局域网中接收数据帧的方法和站。 该方法包括从TXOP中获得多个数据单元的第一数据单元的已经获得带宽的传输机会（TXOP）的发射机接收指示发射机有权交换的时间间隔的TXOP 帧序列; 并且在接收到所述第一数据单元之后，在所述TXOP期间进一步从所述发射机接收所述多个数据单元中的第二数据单元，其中从可用带宽中选择所述第二数据单元的发射带宽，其中所述可用带宽包括 与第一数据单元的发送带宽相同的第一可用带宽和比第一数据单元的发送带宽窄的第二可用带宽。
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24.发明授权公开(公告)号：US10530543B2
公开(公告)日：2020-01-07
申请号：US15625794
申请日：2017-06-16
Applicant: LG ELECTRONICS INC.
Inventor： Byeong Woo Kang , Dong Wook Roh , Yong Ho Seok , Yu Jin Noh , Bong Hoe Kim , Dae Won Lee
Abstract: A method of transmitting a training signal in a Wireless Local Area Network (WLAN) system includes generating one or more first training signals for a first destination station and one or more second training signals for a second destination station by applying a mapping matrix P to a training signal generation sequence, mapping the first training signals and the second training signals to a plurality of antennas according to an antenna mapping matrix, and performing Inverse Fast Fourier Transform (IFFT) on each of the first training signals and the second training signals mapped to the plurality of antennas and transmitting the training signals through the plurality of antennas.
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公开(公告)号：US10334595B2
公开(公告)日：2019-06-25
申请号：US15727066
申请日：2017-10-06
Applicant: LG ELECTRONICS INC.
Inventor： Yu Jin Noh , Byeong Woo Kang , Dae Won Lee , Yong Ho Seok
Abstract: A method is provided for transmitting a signal by a station in a wireless local area network (WLAN). The station obtains a transmission opportunity (TXOP) indicating a time duration used for transmission of a plurality of data units. The station transmits, during the TXOP, an initial data unit of the plurality of data units. The initial data unit comprises a control field indicating a transmit bandwidth of the initial data unit. The station selects a transmit bandwidth of a non-initial data unit of the plurality of data units to be narrower than the transmit bandwidth of the initial data unit. The station transmits, during the TXOP, the non-initial data unit. The non-initial data unit comprises a control field indicating the transmit bandwidth of the non-initial data unit.
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Patent Agency Ranking
公开(公告)号：US09876882B2
公开(公告)日：2018-01-23
申请号：US15397453
申请日：2017-01-03
Applicant: LG ELECTRONICS INC.
Inventor： Dae Won Lee , Yu Jin Noh , Byeong Woo Kang , Yong Ho Seok
IPC: H04L29/08 , H04B7/0452 , H04L27/26 , H04W84/12
CPC classification number: H04L69/323 , H04B7/0452 , H04B7/0456 , H04B7/06 , H04L27/2626 , H04L27/2646 , H04L27/2647 , H04L27/28 , H04W84/12
Abstract: A method for transmitting data in a wireless local area network, the method comprising: receiving, by a receiving station, a physical layer protocol data unit (PPDU) from a transmitting station, the PPDU including a signal-A field, the signal-A field including a bandwidth in which the PPDU is received, decoding the PPDU, wherein, when the PPDU is used for single-user (SU) transmission, the PPDU is decoded with assuming that the PPDU does not include a signal-B field, and, when the PPDU is used for multi-user (MU) transmission, the PPDU is decoded with assuming that the PPDU include the signal-B field, and wherein the signal-B field includes a modulation and coding scheme (MCS) used for the receiving station.
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27.发明授权公开(公告)号：US09860877B2
公开(公告)日：2018-01-02
申请号：US15142379
申请日：2016-04-29
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 , H04W72/08 , H04B7/0413 , H04L29/12 , H04L29/06 , H04L29/08 , H04W84/12 , H04W28/06 , H04W88/08
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.
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公开(公告)号：US09807817B2
公开(公告)日：2017-10-31
申请号：US15138700
申请日：2016-04-26
Applicant: LG ELECTRONICS INC.
Inventor： Byeong Woo Kang , Ill Soo Sohn , Dae Won Lee , Yong Ho Seok
IPC: H04B17/40 , H04W84/12 , H04B7/0452 , H04L1/00 , H04L1/16
CPC classification number: H04W84/12 , H04B7/0452 , H04L1/0003 , H04L1/0009 , H04L1/0031 , H04L1/1685
Abstract: A method of link adaptation performed by an access point supporting multi user (MU) multiple input multiple output (MIMO) in wireless local area network system is provided. The method includes transmitting, to a first station, a physical layer convergence procedure (PLCP) protocol data unit (PPDU) containing a modulation and coding scheme (MCS) request (MRQ) and receiving, from the first station, a MCS feedback (MFB) in response to the MRQ, wherein the first station is one of destination stations of MU-MIMO transmission performed by the access point, and the MFB includes a recommended MCS value computed, by the first station, on the assumption that the first station, as a member of the destination stations, receives data transmitted over at least one spatial stream allocated to the first station in MU-MIMO transmission.
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29.发明授权公开(公告)号：US09716574B2
公开(公告)日：2017-07-25
申请号：US14694346
申请日：2015-04-23
Applicant: LG ELECTRONICS INC.
Inventor： Byeong Woo Kang , Dong Wook Roh , Yong Ho Seok , Yu Jin Noh , Bong Hoe Kim , Dae Won Lee
CPC classification number: H04L5/0048 , H04L27/2628 , H04W84/12 , H04W99/00
Abstract: A method of transmitting a training signal in a Wireless Local Area Network (WLAN) system includes generating one or more first training signals for a first destination station and one or more second training signals for a second destination station by applying a mapping matrix P to a training signal generation sequence, mapping the first training signals and the second training signals to a plurality of antennas according to an antenna mapping matrix, and performing Inverse Fast Fourier Transform (IFFT) on each of the first training signals and the second training signals mapped to the plurality of antennas and transmitting the training signals through the plurality of antennas.
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公开(公告)号：US09661629B2
公开(公告)日：2017-05-23
申请号：US15010348
申请日：2016-01-29
Applicant: LG ELECTRONICS INC.
Inventor： Yu Jin Noh , Byeong Woo Kang , Dae Won Lee , Yong Ho Seok
CPC classification number: H04W72/0446 , H04B7/0452 , H04W28/20 , H04W72/04 , H04W72/0406 , H04W74/0808 , H04W84/12 , H04W88/02 , H04W88/08
Abstract: A method of transmitting a data frame by a station in a wireless local area network (WLAN), A station obtains a transmission opportunity (TXOP) for a bandwidth. The TXOP indicates an interval of time during which the station has a right to initiate frame exchange sequences onto a wireless medium. The station selects a transmit bandwidth parameter of a non-initial data unit of a plurality of data units from available bandwidth parameters. The available bandwidth parameters include a first available bandwidth parameter which is same as a transmit bandwidth parameter of a preceding data unit of the plurality of data units and a second available bandwidth parameter which is narrower than a transmit bandwidth parameter of the preceding data unit. The station transmits, during the TXOP, the non-initial data unit according to the transmit bandwidth parameter of the non-initial data unit.
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