公开(公告)号：US20240340694A1

公开(公告)日：2024-10-10

申请号：US18577021

申请日：2021-07-05

Applicant: LG Electronics Inc.

Inventor： Bonghoe KIM ,  Jongwoong SHIN

IPC: H04W28/04 ,  H04L1/00 ,  H04L1/1812

CPC classification number: H04W28/04 ,  H04L1/0063 ,  H04L1/1812

Abstract: A method by which a first wireless apparatus transmits a signal on the basis of a hybrid automatic repeat request (HARQ) by using a parity check (PC) polar code in a wireless communication system, according to one embodiment of the present specification, comprises the steps of: generating a first codeword on the basis of a first PC polar code; transmitting the first codeword; generating a second codeword on the basis of a second PC polar code; and transmitting the second codeword.

公开(公告)号：US20220278798A1

公开(公告)日：2022-09-01

申请号：US17740075

申请日：2022-05-09

Applicant: LG Electronics Inc.

Inventor： Bonghoe KIM ,  Yunjung Yi

IPC: H04L5/00 ,  H04L1/18 ,  H04L65/40 ,  H04W4/70 ,  H04W72/04 ,  H04W72/12

Abstract: The present invention provides methods for controlling transmission of a sounding reference signal (SRS) in a wireless access system supporting machine type communication (MTC) and devices for supporting same. A method for controlling transmission of an SRS by an MTC terminal in a wireless access system supporting MTC, according to an embodiment of the present invention, can comprise the steps of: receiving an upper layer signal comprising information about an SRS which is to be repeatedly transmitted; configuring the SRS on the basis of the information about the SRS; and transmitting the SRS by means of a subband to which a physical uplink shared channel (PUSCH) is allocated and which is being frequency hopped. The subband comprises six physical resource blocks (PRB), and the SRS can be sequentially transmitted to the subband being frequency hopped.

公开(公告)号：US20220190959A1

公开(公告)日：2022-06-16

申请号：US17686015

申请日：2022-03-03

Applicant: LG Electronics Inc.

Inventor： Seunggye HWANG ,  Kijun KIM ,  Soocheol KYEONG ,  Bonghoe KIM ,  Jinwoo KIM ,  Kwangseok NOH ,  Jongwoong SHIN ,  Joonkui AHN ,  Hyangsun YOU

IPC: H04L1/00 ,  H03M13/13

Abstract: A disclosure of the present specification provides a method for transmitting data by a transmitter. The method may comprise the steps of: when a transport block (TB) is divided into n data blocks, adding additional information after each of the n data blocks; and adding a cyclic redundancy check (CRC) after the last additional information. Here, the CRC may be generated on the basis of the n data blocks, and the n pieces of additional information added after each of data blocks.

公开(公告)号：US20220029637A1

公开(公告)日：2022-01-27

申请号：US17261423

申请日：2018-07-27

Applicant: LG Electronics Inc.

Inventor： Kijun JEON ,  Bonghoe KIM ,  Kwangseok NOH

IPC: H03M13/11 ,  H04L1/00

Abstract: A method for performing low-density parity-check (LDPC) decoding by a communication apparatus may comprise the steps of: acquiring information on a shortening pattern; setting a log-likelihood ratio (LLR) value of a shortening part on the basis of the information on the shortening pattern so as to perform first decoding; and verifying validation of a corresponding codeword on the basis of a result of the first decoding.

公开(公告)号：US20210328716A1

公开(公告)日：2021-10-21

申请号：US17272056

申请日：2019-08-27

Applicant: LG Electronics Inc.

Inventor： Kwangseok NOH ,  Bonghoe KIM ,  Il-Min KIM

IPC: H04L1/00 ,  H04L1/18 ,  H04W4/44 ,  H04W4/46

Abstract: A method for transmitting signals using polar coding to a second device by means of a first device according to the present disclosure may include: a step for encoding a first bit sequence of length K which includes a first information block, a second information block, a first cyclic redundancy check (CRC) for the first information block, and a second CRC for the second information block, on the basis of a polar code of size N; a step for transmitting a first signal on the basis of the encoded first bit sequence; a step for receiving first hybrid automatic repeat request acknowledgement/negative-acknowledgement (HARQ ACK/NACK) information for the first bit sequence; a step for dividing the second information block into a first sub information block and a second sub information block and generating a third CRC for the first sub information block, on the basis of the first HARQ ACK/NACK information including information indicating failure of the transmission of the second information block; a step for encoding a second bit sequence of length L including the third CRC, on the basis of the polar code; and a step for transmitting a second signal on the basis of the encoded second bit sequence.

公开(公告)号：US20210152413A1

公开(公告)日：2021-05-20

申请号：US17158683

申请日：2021-01-26

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo KO ,  Bonghoe KIM ,  Byounghoon KIM ,  Yunjung YI

IPC: H04L27/26 ,  H04J13/00 ,  H04J11/00 ,  H04W56/00 ,  H04W72/04

Abstract: The present document relates to a method for transmitting a signal using a long sequence in a wireless communication system. According to the method, a transmission side device transmits a signal using the long sequence comprising a combination of a plurality of sub-subsequences, wherein each of the plurality of sub-subsequences comprises a combination of a plurality of short base sequences, each having a length equal to or shorter than a predetermined length, and sequences obtained by multiplying each of the base sequences by a cover sequence.

公开(公告)号：US20210044463A1

公开(公告)日：2021-02-11

申请号：US17081330

申请日：2020-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Seunggye HWANG ,  Hyunsoo KO ,  Yunjung YI ,  Bonghoe KIM ,  Kijun KIM

IPC: H04L27/00 ,  H04L5/00 ,  H04L27/22 ,  H04W72/04 ,  H04W92/10 ,  H04L27/26 ,  H04W4/70 ,  H04L27/34 ,  H04L1/00 ,  H04W4/80 ,  H04L1/16

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：US20200186284A1

公开(公告)日：2020-06-11

申请号：US16623283

申请日：2018-06-18

Applicant: LG Electronics Inc.

Inventor： Kwangseok NOH ,  Bonghoe KIM

IPC: H04L1/00 ,  H04W72/04

Abstract: A transmission apparatus: encodes information into a first bit sequence, using a polar code; outputs a second bit sequence by inputting the first bit sequence to an interleaver; modulates the second bit sequence into modulation symbols according to a modulation order; and transmits the modulation symbols. The interleaver: has an odd number of columns; and is configured to cyclically read and output, from column k, bits stored in row n of the interleaver, and cyclically read and output, from column k+a, bits stored in row n+1 of the interleaver, wherein a represents an integer which is not 0.

公开(公告)号：US20200077367A1

公开(公告)日：2020-03-05

申请号：US16679116

申请日：2019-11-08

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe KIM ,  Yunjung YI

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

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：US20200052862A1

公开(公告)日：2020-02-13

申请号：US16654619

申请日：2019-10-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Bonghoe KIM ,  Jonghyun PARK ,  Kijun KIM

IPC: H04L5/00 ,  H04B7/0417 ,  H04B7/06 ,  H04L5/14

Abstract: Disclosed is a method by which a terminal reports channel quality information (CQI) to a base station in a multi-antenna-based wireless communication system. Particularly, the method comprises the steps of: receiving, through an upper layer, the reference signal configuration defined by P number of antenna ports; receiving, through M number of antenna ports, reference signals from the base station; grouping the P number of antenna ports into antenna port groups formed of the M number of antenna ports; calculating CQIs by using the reference signal corresponding to each of the antenna port groups on the basis of the assumption that predefined precoders are applied to the reference signals; and reporting, to the base station, N number of CQIs among the calculated CQIs.