公开(公告)号：US12015509B2

公开(公告)日：2024-06-18

申请号：US17844503

申请日：2022-06-20

Applicant: LG ELECTRONICS INC.

Inventor： Seunggye Hwang ,  Hyunsoo Ko ,  Yunjung Yi ,  Bonghoe Kim ,  Kijun Kim

IPC: H04L27/00 ,  H04L1/00 ,  H04L1/1607 ,  H04L5/00 ,  H04L27/22 ,  H04L27/26 ,  H04L27/34 ,  H04W4/70 ,  H04W4/80 ,  H04W72/0446 ,  H04W72/0453 ,  H04W92/10

CPC classification number: H04L27/0008 ,  H04L1/0061 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0083 ,  H04L27/22 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2614 ,  H04L27/3444 ,  H04W4/70 ,  H04W4/80 ,  H04W72/0446 ,  H04W72/0453 ,  H04W92/10 ,  H04L1/1664 ,  H04L5/0062

Abstract: The present specification relates to a method for transmitting, by a terminal, a demodulation reference signal (DMRS) in a wireless communication system supporting narrow-band (NB)-Internet of things (IOT), the method comprising: generating, for single tone transmission, a reference signal sequence to be used for demodulation; mapping the reference signal sequence to a plurality of symbols; and transmitting, in the plurality of symbols, the demodulation reference signal to a base station by using a single tone, wherein phase rotation is applied to each of the plurality of symbols.

公开(公告)号：US12003254B2

公开(公告)日：2024-06-04

申请号：US17297705

申请日：2019-12-05

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe Kim ,  Kwangseok Noh ,  Ilmin Kim

IPC: H03M13/13 ,  H04L1/00 ,  H04L1/1812 ,  H04L1/1829

CPC classification number: H03M13/13 ,  H04L1/0061 ,  H04L1/1812 ,  H04L1/1861

Abstract: A method for transmitting data on the basis of polar coding in a wireless communication system, according to the present disclosure may comprise the steps of: transmitting data including a plurality of information blocks, each of which contains a corresponding cyclic redundancy check (CRC); receiving a hybrid automatic repeat request acknowledgement/negative acknowledgement (HARQ ACK/NACK) of the transmitted data; performing learning in order to retransmit the plurality of information blocks; and retransmitting the plurality of information blocks on the basis of the HARQ ACK/NACK, wherein the step of performing learning comprises the steps of: obtaining current state sn; obtaining actions to be applied to current state sn; and selecting, from the actions, an action maximizing expected reward value Qn+1, wherein expected reward value Qn+1 is obtained on the basis of rewards R1, R2, . . . , Rn corresponding to states s1, s2, . . . , sn, and the plurality of information blocks is retransmitted on the basis of the selected action.

公开(公告)号：USRE49547E1

公开(公告)日：2023-06-06

申请号：US17314840

申请日：2021-05-07

Applicant: LG Electronics Inc.

Inventor： Bonghoe Kim ,  Dongyoun Seo

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/09 ,  H03M13/13 ,  H03M13/29 ,  H03M13/35 ,  H04L1/1829 ,  H04L1/1607

CPC classification number: H03M13/13 ,  H03M13/09 ,  H03M13/2906 ,  H03M13/353 ,  H03M13/356 ,  H03M13/6356 ,  H03M13/6362 ,  H03M13/6525 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0061 ,  H04L1/0068 ,  H04L1/1671 ,  H04L1/1861

Abstract: The present invention relates to data transmission/reception methods using a polar coding scheme, and devices for supporting same. The method for transmitting data by using polar coding in a wireless access system, according to one embodiment of the present invention, may comprise the steps of deriving Bhattacharyya parameters according to data bits input for finding noise-free channels among equivalent channels; allocating data payloads comprising data bits and cyclic redundancy check (CRC) bits to the found noise-free channels; inputting the data payloads into a polar encoder; and transmitting code bits output by the polar encoder, wherein the CRC bits may be allocated to better noise-free channels, among the noise-free channels indicated by the Bhattacharyya parameters, than the data bits.

公开(公告)号：US11223370B2

公开(公告)日：2022-01-11

申请号：US16065676

申请日：2018-02-14

Applicant: LG Electronics Inc.

Inventor： Kwangseok Noh ,  Bonghoe Kim

IPC: H03M13/13 ,  H04L1/00

Abstract: In a wireless communication system, a transmission device inputs, in some of N input bit positions of a polar code having the size N, input bits including D-bit information and X-bit user equipment (UE) ID according to a predetermined bit allocation sequence. The transmission device encodes the input bits by using the polar code. The transmission device transmits an encoded output sequence.

公开(公告)号：US11206044B2

公开(公告)日：2021-12-21

申请号：US16065753

申请日：2018-01-03

Applicant: LG ELECTRONICS INC.

Inventor： Seunggye Hwang ,  Bonghoe Kim ,  Joonkui Ahn ,  Kijun Kim

IPC: H04B7/02 ,  H03M13/13 ,  H03M13/27 ,  H03M13/29 ,  H04W72/02 ,  H04W72/04 ,  H04W88/02

Abstract: Disclosed in the present specification is a method for performing channel encoding. The method can comprise the steps of: interleaving information bits; and encoding the interleaved information bits by using a polar code. The information bits can be interleaved according to an interleaving pattern.

公开(公告)号：US11197297B2

公开(公告)日：2021-12-07

申请号：US16818744

申请日：2020-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe Kim ,  Joonkui Ahn

IPC: H04W72/04 ,  H04B17/24 ,  H04B17/309 ,  H04L1/00 ,  H04W4/70 ,  H04L5/00 ,  H04L1/16

Abstract: The present invention provides a method by which an MTC terminal measures channel state information (CSI), a method for transmitting CSI, and apparatuses supporting the same. A method by which the MTC terminal feeds back CSI in a wireless access system supporting machine type communication (MTC), according to one embodiment of the present invention, comprises the steps of: receiving allocation information on a limited MTC bandwidth allocated to the MK terminal; calculating CSI; and feeding back the CSI. Here, the CSI can include MTC wideband channel state information (MTC W-CQI) for the limited MTC bandwidth.

公开(公告)号：US11082955B2

公开(公告)日：2021-08-03

申请号：US16679116

申请日：2019-11-08

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe Kim ,  Yunjung Yi

IPC: H04W72/04 ,  H04W4/70 ,  H04W28/02 ,  H04W88/02 ,  H04W52/02 ,  H04L5/00 ,  H04W72/12

Abstract: The present invention relates to a wireless access system supporting machine type communication (MTC), and to various methods for an MTC terminal transmitting/receiving data. A method for an MTC terminal receiving data in a wireless access system supporting MTC, as one embodiment of the present invention, may comprise the steps of: receiving a modulation and coding scheme (MCS) index indicating a MCS, and a physical resource block (PRB) index indicating the size of a PRB allocated to a MTC terminal; checking a transport block size (TBS) index that is mapped with the MCS index and deriving a TBS on the basis of the TBS index and the PRB index; and on the basis of the TBS, decoding a physical downlink shared channel (PDSCH) in order to receive data. Here, the size of the MCS index is configured to be a 4-bit size, and the TBS index may be configured so as to support only from 0 to 9 for the MTC terminal.

公开(公告)号：US11064469B2

公开(公告)日：2021-07-13

申请号：US16006656

申请日：2018-06-12

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel Yang ,  Joonkui Ahn ,  Bonghoe Kim

IPC: H04W72/04 ,  H04L1/00 ,  H04L1/18 ,  H04L1/16 ,  H04L5/00 ,  H04W24/04 ,  H04W52/36 ,  H04W88/02

Abstract: The present invention relates to a wireless communication system. In detail, the invention relates to a method for a terminal to transmit a UCI in a carrier aggregation-based wireless communication system, and to an apparatus therefor, wherein the method involves the steps of: forming a first cell group having a PCell; forming a second cell group having one or more SCells; receiving one or more data in the second cell group; and transmitting HARQ-ACK information on the one or more data through a PUCCH, wherein, when the first and second cell groups are managed by an identical base station, the HARQ-ACK information is transmitted in the PCell, and, when the first and second cell groups are managed by different base stations, the HARQ-ACK information is transmitted in the second cell group.

公开(公告)号：US11063699B2

公开(公告)日：2021-07-13

申请号：US16484102

申请日：2018-02-06

Applicant: LG ELECTRONICS INC.

Inventor： Kwangseok Noh ,  Bonghoe Kim

IPC: H04L1/00 ,  H04L1/06

Abstract: A transmission device in a wireless communication system attaches a cyclic redundancy check (CRC) code having a predetermined length to a code block (CB) acquired from a transport block (TB). The predetermined length according to the present invention depends on a code rate associated with the TB.

公开(公告)号：US11043970B2

公开(公告)日：2021-06-22

申请号：US16065542

申请日：2018-02-05

Applicant: LG Electronics Inc.

Inventor： Jongwoong Shin ,  Bonghoe Kim ,  Jinwoo Kim ,  Ilmu Byun

IPC: H03M13/11 ,  H03M13/00 ,  H04L1/00

Abstract: A method for encoding a quasi-cyclic low-density parity-check (LDPC) code according to an embodiment of the present invention may comprise the steps of: generating a multi-edge LDPC code matrix including a high rate code matrix and a single parity check code matrix; and encoding a signal by using the multi-edge LDPC code matrix, wherein the single parity check code matrix includes a first matrix having a non-row-orthogonal structure matrix and a second matrix having a pure row-orthogonal structure, which are concatenated.