公开(公告)号：US20210176003A1

公开(公告)日：2021-06-10

申请号：US17179119

申请日：2021-02-18

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: H04L1/00 ,  H03M13/37 ,  H04L5/00 ,  H03M13/13 ,  H04W72/04 ,  H03M13/29 ,  H03M13/00 ,  H04W84/04 ,  G06F17/16 ,  H03M13/05

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.

公开(公告)号：US20200336245A1

公开(公告)日：2020-10-22

申请号：US16920136

申请日：2020-07-02

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: H04L1/00 ,  H03M13/29 ,  H03M13/13 ,  H03M13/05 ,  H04W84/04 ,  H04L5/00 ,  G06F17/16 ,  H04W72/04 ,  H03M13/37 ,  H03M13/00

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.

公开(公告)号：US20200228938A1

公开(公告)日：2020-07-16

申请号：US16837743

申请日：2020-04-01

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won LEE ,  Yong Ho SEOK

IPC: H04W4/08 ,  H04B7/0452 ,  H04W72/04 ,  H04W84/12 ,  H04W72/12

Abstract: A method of transmitting a spatial stream for multi user (MU)-multiple input multiple output (MIMO) in a wireless local area network system and a transmitter for performing the method are provided. The method includes transmitting, to a receiver, a management frame including group information to assign or change a position of a plurality of spatial streams corresponding to each of a plurality of groups, and transmitting, to the receiver, a frame including at least one spatial stream, wherein the group information includes a plurality of group indicators and a plurality of spatial stream (SS) indicators, each of the plurality of group indicators indicating whether the receiver is a member of each of the plurality of groups, each of the plurality of SS indicators indicating a position of the plurality of spatial streams corresponding to each of the plurality of groups.

公开(公告)号：US20200015108A1

公开(公告)日：2020-01-09

申请号：US16509330

申请日：2019-07-11

Applicant: LG ELECTRONICS INC.

Inventor： Young Seob CHOI ,  Hak Seong KIM ,  Han Byul SEO ,  Ki Jun KIM ,  Dae Won LEE

IPC: H04W24/10 ,  H04L1/00 ,  H04L5/00

Abstract: An apparatus and method for transmitting channel state information in a wireless communication system are disclosed. The UE apparatus for transmitting channel state information includes a channel state measurement module for measuring a channel state based on a level of interference received from a neighbor cell, a channel state information generation module for generating channel state information for a plurality of resource regions or for periodic and aperiodic channel state information reporting modes using the measured channel state and offsets received from a serving BS, the offsets being set for the plurality of resource regions or the periodic and aperiodic channel state information reporting modes, and a transmission module for transmitting the generated channel state information to the serving BS.

公开(公告)号：US20190274140A1

公开(公告)日：2019-09-05

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 ,  H04W28/20 ,  H04W88/02 ,  H04W74/08 ,  H04W84/12 ,  H04B7/0452

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：US20180103470A1

公开(公告)日：2018-04-12

申请号：US15839083

申请日：2017-12-12

Applicant: LG ELECTRONICS INC.

Inventor： Joon Kui AHN ,  Bong Hoe KIM ,  Young Woo YUN ,  Ki Jun KIM ,  Jung Hoon LEE ,  Dae Won LEE ,  Dong Youn SEO ,  Dong Wook ROH ,  Suk Hyon YOON

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04L1/16 ,  H04L1/18 ,  H04W72/02

CPC classification number: H04W72/0446 ,  H04L1/16 ,  H04L1/1861 ,  H04L5/0053 ,  H04L27/2613 ,  H04W72/02

Abstract: A method of acquiring information on a resource region for transmitting PHICH and a method of receiving PDCCH using the same are disclosed. The resource region for transmitting the PHICH can be specified by first information corresponding to the per-sub frame PHICH number and second information corresponding to a duration of the PHICH within the subframe. The first Information can be specified into a form resulting from multiplying a predetermined basic number by a specific constant. And, the specific constant can be transmitted via PBCH. Moreover, the second information can be acquired from the PBCH as well.

公开(公告)号：US20180007685A1

公开(公告)日：2018-01-04

申请号：US15702095

申请日：2017-09-12

Applicant: LG ELECTRONICS INC.

Inventor： Hak Seong KIM ,  Bong Hoe KIM ,  Ki Jun KIM ,  Suk Hyon YOON ,  In Jae JUNG ,  Dae Won LEE ,  Joon Kui AHN ,  Dong Youn SEO

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08

CPC classification number: H04W72/0413 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/085

Abstract: A method for adaptively allocating resources of an uplink control channel according to a system situation is disclosed. If a base station (BS) recognizes the system situation, establishes control information for resource allocation, and transmits the control information to a mobile station (MS), the mobile station (MS) allocates resources for transmitting uplink control information using a specific block or a specific resource distribution method according to the corresponding control information. The system situation may be changed according to the number of users contained in the BS's coverage or the usage of a multi-antenna. The variation of the system situation is actively reflected so that the uplink channel resources can be effectively used.

公开(公告)号：US20180006789A1

公开(公告)日：2018-01-04

申请号：US15689117

申请日：2017-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won LEE ,  Ill Soo SOHN ,  Yong Ho SEOK

IPC: H04L5/00 ,  H04W84/12 ,  H04L1/18 ,  H04B7/06 ,  H04W16/28 ,  H04B7/0452

CPC classification number: H04L5/0053 ,  H04B7/0452 ,  H04B7/0636 ,  H04L1/1812 ,  H04L5/0023 ,  H04W16/28 ,  H04W84/12

Abstract: A method is provided for channel sounding in a wireless local area network. A responding station receives a null data packet announcement (NDPA) frame and a null data packet (NDP) frame for the channel sounding from a requesting station. The NDP frame follows the NDPA frame. The responding station receives a first poll frame from the requesting station. 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.

公开(公告)号：US20180006692A1

公开(公告)日：2018-01-04

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

CPC classification number: H04B7/0486 ,  H04B7/0456 ,  H04B7/0617 ,  H04J11/0023 ,  H04L25/03923 ,  H04L25/03929 ,  H04L27/2614 ,  H04L27/2615 ,  H04L27/2636 ,  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.

公开(公告)号：US20170288836A1

公开(公告)日：2017-10-05

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

IPC: H04L5/00

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.