公开(公告)号：US11153775B2

公开(公告)日：2021-10-19

申请号：US15548254

申请日：2016-01-14

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim ,  Hanbyul Seo ,  Bonghoe Kim ,  Yunjung Yi

IPC: H04B7/0452 ,  H04W28/02 ,  H04J11/00 ,  H04L27/34 ,  H04W52/02 ,  H04W52/24 ,  H04B7/06 ,  H04L5/00

Abstract: A method for receiving a downlink signal from a base station (BS) by a user equipment (UE) in a wireless communication system is disclosed. The method includes receiving power multiplexing information from the BS, receiving a reference signal and the downlink signal from the BS, calculating reception power of an interference signal from reception power of the downlink signal, using the reference signal and the power multiplexing information, and acquiring a data signal of the UE by eliminating the reception power of the interference signal from the reception power of the downlink signal.

公开(公告)号：US11115144B2

公开(公告)日：2021-09-07

申请号：US16738724

申请日：2020-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Seokmin Shin ,  Yunjung Yi ,  Seonwook Kim ,  Bonghoe Kim

IPC: H04J11/00 ,  H04L27/26 ,  H04L5/00 ,  H04L12/18 ,  H04W56/00 ,  H04W72/04

Abstract: A cell search method of a terminal in a wireless communication system, comprises: a step of receiving a narrow band synchronization signal through a narrow band from a base station; and a step of acquiring time synchronization and frequency synchronization with the base station on the basis of the narrow band synchronization signal and detecting an identifier of the base station, wherein the narrow band has a system bandwidth of 180 kHz and includes twelve carriers arranged at intervals of 15 kHz, and the narrow band synchronization signal consists of a first narrow band synchronization signal and a second narrow band synchronization signal, wherein the first narrow band synchronization signal can be transmitted in a sixth subframe of a radio frame and the second narrow band synchronization signal can be transmitted in a tenth subframe of the radio frame.

公开(公告)号：US10986615B2

公开(公告)日：2021-04-20

申请号：US16455372

申请日：2019-06-27

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun You ,  Kijun Kim ,  Soocheol Kyeong ,  Bonghoe Kim ,  Kwangseok Noh

IPC: H04W72/04 ,  H04L1/00 ,  H04L1/18 ,  H04W88/02 ,  H04W88/08

Abstract: A method for transmitting uplink data by a user equipment in a wireless communication system, the method including receiving, by the user equipment, downlink control information including information on a target code rate for the uplink data, determining, by the user equipment, a channel code among a plurality of channel codes based on the target code rate, encoding, by the user equipment, the uplink data based on the determined channel code and transmitting, by the user equipment, the encoded uplink data, wherein the plurality of channel codes support different ranges of code rates, respectively, and wherein the plurality of channel codes are low density parity check codes.

公开(公告)号：US10945237B2

公开(公告)日：2021-03-09

申请号：US16068084

申请日：2017-01-04

Applicant: LG ELECTRONICS INC.

Inventor： Yunjung Yi ,  Bonghoe Kim ,  Byounghoon Kim

IPC: H04W74/02 ,  H04W72/04 ,  H04L27/18 ,  H04L5/00

Abstract: A method and apparatus for transmitting a physical uplink shared channel (PUSCH) and a demodulation reference signal (DM-RS) in a wireless communication system is provided. A narrowband internet-of-things (NB-IoT) user equipment (UE) configures a set of resource units with at least one tone for uplink transmission in NB-IoT, transmits the PUSCH by using the set of resource units, and transmits the DM-RS used for demodulating the PUSCH by a network in the set of resource units.

公开(公告)号：US10897329B2

公开(公告)日：2021-01-19

申请号：US16475662

申请日：2017-12-28

Applicant: LG ELECTRONICS INC.

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

IPC: G01R31/28 ,  H04L1/18 ,  H03M13/13 ,  H04L1/00

Abstract: Provided are a method and an apparatus for performing a HARQ on the basis of a polar code. The apparatus generates a response bit to a transport block received by a receiver. The apparatus generates a codeword by encoding predefined information bits with a polar code. The apparatus transmits all or some bits of the codeword to the receiver over a physical channel. The response bit is located at a bit having a higher reliability among the predefined information bits. The size of the codeword is determined by a value which supports the minimum coding rate on the basis of the number of the predefined information bits.

公开(公告)号：US10827437B2

公开(公告)日：2020-11-03

申请号：US16707863

申请日：2019-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Dongyoun Seo ,  Joonkui Ahn ,  Bonghoe Kim ,  Yunjung Yi

IPC: H04W52/32 ,  H04W52/14 ,  H04W52/34 ,  H04W72/04 ,  H04W76/20 ,  H04W52/24 ,  H04W76/19

Abstract: Provided are a method of controlling transmission power for an uplink control channel for a terminal to which a plurality of cells are assigned, and a device using the method. The method receives a first set of parameters and a second set of parameters that are used for determining transmission power for the uplink control channel and determines the transmission power for the uplink control channel by using the first set of parameters or the second set of parameters, wherein the first set of parameters or the second set of parameters is used according to one of the cells to which the uplink control channel is transmitted.

公开(公告)号：US10790952B2

公开(公告)日：2020-09-29

申请号：US15757639

申请日：2016-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe Kim ,  Hyunsoo Ko ,  Yunjung Yi

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04J11/00

Abstract: The present invention may provide a method and apparatuses for transmitting and receiving a downlink/uplink physical channel when an in-band operation is supported by a radio access system that supports a narrow band Internet of things (NB-IoT). As an embodiment of the present invention, a method for receiving a physical downlink broadcasting channel (M-PBCH) by a terminal in a radio access system that supports a narrow band Internet of things (NB-IoT) system may comprise the steps of: receiving a higher layer signal indicating an in-band deployment mode; receiving a narrow band primary synchronization signal (M-PSS) and a narrow band secondary synchronization signal (M-SSS), configured for the NB-IoT systems; obtaining a cell identifier (N-Cell ID) of the NB-IoT system from the M-SSS; and receiving an M-PBCH using the N-Cell ID in the in-band deployment mode. In this instance, the in-band deployment mode indicates that the NB-IoT system is configured in a band of a legacy LTE system.

公开(公告)号：US10778383B2

公开(公告)日：2020-09-15

申请号：US16502905

申请日：2019-07-03

Applicant: LG ELECTRONICS INC.

Inventor： Daesung Hwang ,  Yunjung Yi ,  Bonghoe Kim

IPC: H04L5/00 ,  H04W72/04 ,  H04W28/26

Abstract: A method for transmitting an uplink signal is discussed. The method performed by a narrowband-internet of things (NB-IoT) device includes determining a time resource unit based on an uplink subcarrier spacing for transmitting the uplink signal; and transmitting the uplink signal on the time resource unit to a base station. Further, the time resource unit includes one or more slots including a plurality of symbols, based on the uplink subcarrier spacing, a predetermined time period in the one or more slots is not used for the transmission of the uplink signal, and the uplink carrier spacing includes 3.75 kHz.

公开(公告)号：US20200244285A1

公开(公告)日：2020-07-30

申请号：US16634975

申请日：2018-07-27

Applicant: LG Electronics Inc.

Inventor： Bonghoe Kim ,  Jongwoong Shin ,  Ilmu Byun

IPC: H03M13/11 ,  H03M13/00 ,  H03M13/09 ,  H04L5/00

Abstract: A method by which a terminal performs rate matching for a low density parity check (LDPC) code can comprise the steps of: determining any one transport block size (TBS) among a plurality of TBSs set for rate matching in the terminal; and performing rate matching for the LDPC code on the basis of the selected TBS. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.

公开(公告)号：US10681660B2

公开(公告)日：2020-06-09

申请号：US16177992

申请日：2018-11-01

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Seokmin Shin ,  Bonghoe Kim ,  Yunjung Yi

IPC: H04W56/00 ,  H04L5/00 ,  H04L27/26 ,  H04W48/16 ,  H04W72/04 ,  H04J13/00

Abstract: A method and apparatus for transmitting and receiving narrowband (NB) synchronization signals. A base station transmits an NB secondary synchronization signal (SSS) indicating N NB cell identities assigned for NB Internet of Things (IoT) operation, a specific sequence generated by multiplying a base sequence with a cover sequence in element units is used for the NB SSS, wherein the base sequence is generated through a second Zadoff-Chu sequence having a length corresponding to a largest prime number less than a length L in a frequency domain, and the specific sequence is divisionally mapped to and transmitted in a plurality of orthogonal frequency division multiplexing (OFDM) symbols in elements each having a length M.