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

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

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.

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.

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.

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.

公开(公告)号：US09954593B2

公开(公告)日：2018-04-24

申请号：US15011210

申请日：2016-01-29

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: H04B7/06 ,  H04L5/00 ,  H04J11/00 ,  H04W24/02 ,  H04W72/04 ,  H04L25/02 ,  H04B7/0413

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 a reference signal for channel measurement (CSI-RS) to a user equipment; a base station therefore; a method for receiving a CSI-RS; and the user equipment therefore are discussed. The method for transmitting a CSI-RS according to one embodiment includes transmitting CSI-RS pattern information for indicating a pattern of time-frequency resource to be nulled, hereinafter referred to as null CSI-RS pattern, and CSI-RS subframe information for indicating in which subframe the null CSI-RS pattern occurs; and nulling a time-frequency resource corresponding to the null CSI-RS pattern in a subframe corresponding to the CSI-RS subframe information, hereinafter referred to as null CSI-RS subframe, based on the CSI-RS pattern information and the CSI-RS subframe information. The CSI-RS subframe information includes information indicating a periodic interval with which the null CSI-RS subframe occurs. The periodic interval corresponds to a plurality of subframes.

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：US09853785B2

公开(公告)日：2017-12-26

申请号：US14582482

申请日：2014-12-24

Applicant: LG Electronics Inc.

Inventor： Han Byul Seo ,  Dae Won Lee ,  Byoung Hoon Kim ,  Hak Seong Kim ,  Yu Jin Noh

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/155 ,  H04B7/26 ,  H04W16/26 ,  H04B7/15 ,  H04L27/26 ,  H04W36/12 ,  H04W84/04

CPC classification number: H04L5/0048 ,  H04B7/024 ,  H04B7/15 ,  H04B7/15542 ,  H04B7/2606 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2601 ,  H04W16/26 ,  H04W36/12 ,  H04W72/04 ,  H04W84/047

Abstract: A method for transmitting a control signal, performed by a wireless device. The method according to one embodiment includes allocating resource elements (REs) for a control channel; and transmitting the control signal through the Res. Each RE in the REs for the control channel is associated with one out of two antenna ports. The two antenna ports are included in a plurality of antenna ports used for transmitting demodulation reference signals (DM RS).

公开(公告)号：US09603144B2

公开(公告)日：2017-03-21

申请号：US14864283

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Dong Youn Seo ,  Joon Kui Ahn ,  Yu Jin Noh ,  Jung Hoon Lee ,  Bong Hoe Kim

IPC: H04W72/04 ,  H04B7/12 ,  H04L1/00 ,  H04L5/00 ,  H04W88/08

CPC classification number: H04W72/0446 ,  H04B7/12 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0028 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0085 ,  H04L5/0092 ,  H04W88/08

Abstract: A method for efficiently scheduling virtual resource blocks to physical resource blocks is disclosed. In a wireless mobile communication system, for distributed mapping of consecutively allocated virtual resource blocks to physical resource blocks, when nulls are inserted into a block interleaver used for the mapping, they are uniformly distributed to ND divided groups of the block interleaver, which are equal in number to the number (ND) of physical resource blocks to which one virtual resource block is mapped.

公开(公告)号：US20170063505A1

公开(公告)日：2017-03-02

申请号：US15348342

申请日：2016-11-10

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

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：US09379740B2

公开(公告)日：2016-06-28

申请号：US14639805

申请日：2015-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Dong Wook Roh ,  Joon Kui Ahn ,  Nam Yul Yu ,  Jung Hyun Cho ,  Yu Jin Noh ,  Ki Jun Kim ,  Dae Won Lee

IPC: H03M13/05 ,  H03M13/03 ,  H03M13/00 ,  H03M13/37 ,  H03M13/13 ,  H04L1/00 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04L1/0041 ,  G06F17/16 ,  H03M13/05 ,  H03M13/13 ,  H03M13/2942 ,  H03M13/3715 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0026 ,  H04L1/0042 ,  H04L1/0057 ,  H04L1/0072 ,  H04L5/005 ,  H04L5/0092 ,  H04W72/0413 ,  H04W84/042

Abstract: A method for channel-coding information bits using a code generation matrix including 32 rows and A columns corresponding to length of the information bits includes, channel-coding the information bits having “A” length using basis sequences having 32-bit length corresponding to columns of the code generation matrix, and outputting the channel-coded result as an output sequence. If “A” is higher than 10, the code generation matrix is generated when (A-10) additional basis sequences were added as column-directional sequences to a first or second matrix. The first matrix is a TFCI code generation matrix composed of 32 rows and 10 columns used for TFCI coding. The second matrix is made when at least one of an inter-row location or an inter-column location of the first matrix was changed. The additional basis sequences satisfy a value 10 of a minimum Hamming distance.