公开(公告)号：US11558869B2

公开(公告)日：2023-01-17

申请号：US17390575

申请日：2021-07-30

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04B7/0452 ,  H04W74/08 ,  H04W84/12 ,  H04W28/20 ,  H04W88/02 ,  H04W88/08

Abstract: A method and device for transmitting a plurality of data units in a wireless local area network (WLAN) are discussed. The method includes obtaining by a station (STA) a transmission opportunity (TXOP), wherein the STA has a right to initiate frame exchange sequences during the TXOP; transmitting during the TXOP, a first data unit of the plurality of data units, wherein the first data unit comprises a signal field including information related to a bandwidth of the first data unit; selecting a bandwidth of a second data unit of the plurality of data units to be narrower than the bandwidth of the first data unit; and transmitting during the TXOP, the second data unit, wherein the second data unit comprises a signal field including information related to the bandwidth of the second data unit, wherein the first data unit is transmitted immediately before the second data unit.

公开(公告)号：US09807765B2

公开(公告)日：2017-10-31

申请号：US15496402

申请日：2017-04-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W28/20 ,  H04W74/08 ,  H04B7/0452 ,  H04W84/12 ,  H04W88/08 ,  H04W88/02

CPC classification number: H04W72/0446 ,  H04B7/0452 ,  H04W28/20 ,  H04W72/04 ,  H04W72/0406 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

Abstract: A method is provided for transmitting a data frame by a station in a wireless local area network. The station obtains a transmission opportunity (TXOP) for a bandwidth, the TXOP indicating an interval of time during which the station has a right to initiate frame exchange sequences onto wireless medium. The station sets a transmit bandwidth parameter of a non-initial physical layer protocol data unit (PPDU) of a plurality of PPDUs to be transmitted during the TXOP based on a transmit bandwidth parameter of a preceding PPDU of the plurality of PPDUs. The transmit bandwidth parameter of the non-initial PPDU is set to be same or narrower than the transmit bandwidth parameter of the preceding PPDU. A bandwidth indicated by the transmit bandwidth parameter of the non-initial PPDU or the preceding PPDU includes at least one of 20 MHz, 40 MHz and 80 MHz. The station transmits the non-initial PPDU during the TXOP.

公开(公告)号：US09749025B2

公开(公告)日：2017-08-29

申请号：US15192730

申请日：2016-06-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/04 ,  H04L5/00 ,  H04B7/0452 ,  H04W84/12 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/06 ,  H04W72/04 ,  H04L27/26

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: A method and a radio apparatus for signal transmission in a Wireless Local Area Network (WLAN) system are discussed. The method according to an embodiment includes generating first and second very high throughput (VHT) fields including first and second control information, respectively; and transmitting a physical layer protocol data unit (PPDU) including the first and second VHT fields to at least one target station. The first VHT field includes an indicator indicating whether the PPDU is to be transmitted by using a single-user multiple input multiple output (SU-MIMO) scheme or a multi-user multiple input multiple output (MU-MIMO) scheme.

公开(公告)号：US09634794B2

公开(公告)日：2017-04-25

申请号：US14502627

申请日：2014-09-30

Applicant: LG Electronics Inc.

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

IPC: H04L1/00 ,  H04L1/06 ,  H04L27/26 ,  H04W84/12 ,  H04B7/0413 ,  H04B7/0452

CPC classification number: H04L1/0009 ,  H04B7/0413 ,  H04B7/0452 ,  H04L1/0003 ,  H04L1/0031 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0075 ,  H04L1/06 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2602 ,  H04W84/12

Abstract: A method of transmitting a packet in a wireless local area network system. The method is performed by a transmitting station and includes generating a packet including at least one spatial stream and first control information including a first field and a second field, and transmitting the packet to at least one receiving station. The first field indicates a group ID of the at least one receiving station and whether the packet is generated based on a single user transmission scheme or a multi user transmission scheme. Content of the second field is determined based on whether the packet is generated based on the single user transmission scheme or the multi user transmission scheme, the second field indicates a modulation and coding scheme (MCS) index used for the packet if the packet is generated based on the single user transmission, and the second field indicates an encoding scheme applied to the at least one receiving station if the packet is generated based on the multi user transmission scheme.

公开(公告)号：US09515794B2

公开(公告)日：2016-12-06

申请号：US14540569

申请日：2014-11-13

Applicant: LG Electronics Inc.

Inventor： Bong Hoe Kim ,  Byeong Woo Kang ,  Yu Jin Noh ,  Hak Seong Kim ,  Dae Won Lee

IPC: H04L5/00 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0613 ,  H04B7/0684

Abstract: A method for transmitting a sounding reference signal in a MIMO wireless communication system and an apparatus therefor are disclosed. The method for transmitting sounding reference signals (SRSs) in a MIMO wireless communication system comprises receiving sounding reference signal parameters from a base station; receiving information of the number of sounding reference signals which will be transmitted at a transmission time instant from the base station; if a plurality of sounding reference signals are provided, generating the sounding reference signals corresponding to each of the plurality of antennas by using the sounding reference signal parameters; and transmitting the generated sounding reference signals to the base station through their corresponding antennas at a specific transmission instant.

Abstract translation: 公开了一种用于在MIMO无线通信系统及其装置中发送探测参考信号的方法。 用于在MIMO无线通信系统中发送探测参考信号（SRS）的方法包括从基站接收探测参考信号参数; 接收将从基站在传输时刻发送的探测参考信号的数量的信息; 如果提供多个​​探测参考信号，则通过使用探测参考信号参数产生与多个天线中的每一个对应的探测参考信号; 并且在特定的传输瞬间通过其对应的天线将生成的探测参考信号发送到基站。

公开(公告)号：US09350434B2

公开(公告)日：2016-05-24

申请号：US14791032

申请日：2015-07-02

Applicant: LG ELECTRONICS INC.

Inventor： Ill Soo Sohn ,  Yong Ho Seok ,  Jong Hyun Park ,  Dae Won Lee ,  Byeong Woo Kang

IPC: H04J3/16 ,  H04B7/04 ,  H04W74/06 ,  H04W84/12 ,  H04B7/06

CPC classification number: H04B7/0478 ,  H04B7/0617 ,  H04L5/0048 ,  H04W74/06 ,  H04W84/12

Abstract: A method for a channel sounding in a wireless local area network. A station receives a 20 MHz null data packet announcement (NDPA) frame and at least one duplicate 20 MHz NDPA frame. The at least one duplicate 20 MHz NDPA frame is a duplicate of the 20 MHz NDPA frame. The station also receives a null data packet (NDP) following the 20 MHz NDPA frame and the at least one duplicate 20 MHz NDPA frame. The bandwidth over which the 20 MHz NDPA frame and the at least one duplicate 20 MHz NDPA frame are transmitted is the same as a bandwidth over which the NDP is transmitted. The station transmits a report frame for the channel sounding. The 20 MHz NDPA frame and the at least one duplicate 20 MHz NDPA frame comprise bandwidth information indicating the bandwidth over which the frames are transmitted.

Abstract translation: 一种用于无线局域网中的信道探测的方法。 站点接收20MHz空数据分组公告（NDPA）帧和至少一个重复的20MHz NDPA帧。 至少一个20 MHz的NDPA帧是20 MHz NDPA帧的副本。 该站还在20MHz NDPA帧和至少一个重复的20MHz NDPA帧之后接收空数据分组（NDP）。 传输20MHz NDPA帧和至少一个重复的20MHz NDPA帧的带宽与发送NDP的带宽相同。 车站发送通道侦听报警帧。 20MHz NDPA帧和至少一个重复的20MHz NDPA帧包括指示发送帧的带宽的带宽信息。

公开(公告)号：US09276692B2

公开(公告)日：2016-03-01

申请号：US14542237

申请日：2014-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin Noh ,  Dong Wook Roh ,  Joon Kui Ahn ,  Byeong Woo Kang ,  Dae Won Lee ,  Bong Hoe Kim ,  Dong Youn Seo

IPC: H04J11/00 ,  H04B7/04 ,  H04L5/00 ,  H04W72/04 ,  H04W24/02 ,  H04L25/02

CPC classification number: H04B7/0626 ,  H04B7/0413 ,  H04J11/0053 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0094 ,  H04L25/0218 ,  H04L25/0226 ,  H04W24/02 ,  H04W72/0446 ,  H04W72/0453

Abstract: A method for transmitting, by a base station, configuration information for a reference signal for channel measurement. The method according to one embodiment includes transmitting, to a user equipment, first resource information for indicating a first pattern, first subframe information for indicating a first subframe, second resource information for indicating a second pattern, and second subframe information for indicating a second subframe. The first subframe information includes information indicating a first periodic interval, and the second subframe information indicates information indicating a second periodic interval. Each of the first and second subframes is comprised of two slots—slot 0 and slot 1, and each of the first and second reference signal time-frequency resources is within two OFDM symbols other than OFDM symbols 0, 1, 2, and 3 of the slot 0 and other than OFDM symbols 0, 1, and 3 of the slot 1.

Abstract translation: 一种用于由基站发送用于信道测量的参考信号的配置信息的方法。 根据一个实施例的方法包括向用户设备发送用于指示第一模式的第一资源信息，用于指示第一子帧的第一子帧信息，用于指示第二模式的第二资源信息，以及用于指示第二子帧的第二子帧信息 。 第一子帧信息包括指示第一周期性间隔的信息，第二子帧信息指示表示第二周期性间隔的信息。 第一和第二子帧中的每一个由两个时隙0和时隙1组成，并且第一和第二参考信号时频资源中的每一个在除了OFDM符号0,1,2和3之外的两个OFDM符号内 时隙0以及时隙1的OFDM符号0，1和3之外。

公开(公告)号：US09031051B2

公开(公告)日：2015-05-12

申请号：US14089565

申请日：2013-11-25

Applicant: LG Electronics Inc.

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

IPC: H04W4/00 ,  H04W72/04 ,  H04J3/00 ,  H04L12/413 ,  H04W84/12 ,  H04L5/00 ,  H04W28/06

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：US08971166B1

公开(公告)日：2015-03-03

申请号：US14539920

申请日：2014-11-12

Applicant: LG Electronics Inc.

Inventor： Bong Hoe Kim ,  Dae Won Lee ,  Yu Jin Noh ,  Byeong Woo Kang ,  Dong Youn Seo ,  Dong Wook Roh

IPC: H04J11/00 ,  H04W4/00 ,  H04W72/04 ,  H04B7/04

CPC classification number: H04B7/0456 ,  H04B7/0413 ,  H04L1/0071 ,  H04L5/0044 ,  H04L27/2626 ,  H04W72/04

Abstract: A method and terminal apparatus are described for performing channel interleaving at a terminal in a multiple-input multiple-output (MIMO) wireless communication system. A number of columns C of an interleaver matrix are assigned as a number of symbols for transmitting data per subframe (Nsymb). A number of rows R of the interleaver matrix is defined as H · L · log 2 ⁢ Q C , where H is a number of modulation symbols per layer, L is a number of layers and Q is a modulation order. Input vector sequences are written into entries of the interleaver matrix, row by row. Each of the entries has a size of L·log2 Q bits. Output bit sequences are generated by reading out the entries of the interleaver matrix, column by column. The output bit sequences are modulated by a unit of log2 Q bits, to generate modulation symbols. The modulation symbols are mapped to the L layers, and transmitted by using the L layers.

Abstract translation: 描述了一种用于在多输入多输出（MIMO）无线通信系统中的终端处执行信道交织的方法和终端装置。 分配多个交织器矩阵的列C作为每子帧发送数据的符号数（Nsymb）。 交织器矩阵的行数R被定义为H·L·log 2 Q C，其中H是每层的调制符号数，L是层数，Q是调制阶数。 输入向量序列逐行写入交织器矩阵的条目。 每个条目的大小为L·log2 Q位。 通过逐列读出交织器矩阵的条目来生成输出位序列。 输出位序列由log2Q位单位调制，以产生调制符号。 调制符号映射到L层，并通过使用L层传输。

公开(公告)号：US10236957B2

公开(公告)日：2019-03-19

申请号：US15709321

申请日：2017-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin Noh ,  Ki Jun Kim ,  Dong Wook Roh ,  Byeong Woo Kang ,  Dae Won Lee ,  Bong Hoe Kim ,  Dong Youn Seo

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06 ,  H04L25/03 ,  H04L27/26 ,  H04J11/00 ,  H04W72/04

Abstract: A method and apparatus for allowing a UE to transmit uplink signals using a MIMO scheme are disclosed. In order to maintain good Peak power to Average Power Ratio (PAPR) or Cubic Metric (CM) properties when the UE transmits uplink signals using the MIMO scheme, the UE uses a precoding scheme based on a precoding matrix established in a manner that one layer is transmitted to each antenna in specific rank transmission.