公开(公告)号：US20200245363A1

公开(公告)日：2020-07-30

申请号：US16637544

申请日：2018-08-09

Applicant: LG Electronics Inc.

Inventor： Jaehyung KIM ,  Joonkui AHN ,  Byounghoon KIM ,  Changhwan PARK ,  Seokmin SHIN ,  Suckchel YANG ,  Seunggye HWANG

IPC: H04W74/08 ,  H04B1/713

Abstract: The present invention relates to a method for performing a random access process in a wireless communication system, and a device therefor and, more specifically, to a method and a device therefor, the method comprising the steps of: receiving narrowband physical random access channel (NPRACH) configuration information; and transmitting a random access preamble on the basis of the received NPRACH configuration information, wherein a sub-carrier spacing for the random access preamble is set to 3.75/N kHz, where N is an integer greater than or equal to 3, the random access preamble includes multiple symbol groups, the multiple symbol groups are transmitted on the basis of frequency-hopping, and a frequency-hopping distance between each of the multiple symbol groups includes a value between 3.75/N kHz and 6*3.75 kHz.

公开(公告)号：US20200245350A1

公开(公告)日：2020-07-30

申请号：US16850837

申请日：2020-04-16

Applicant: LG Electronics Inc.

Inventor： Seungmin LEE ,  Suckchel YANG ,  Seonwook KIM

IPC: H04W72/12 ,  H04L5/00

Abstract: Provided are a method for a terminal transmitting an uplink control channel in a wireless communication system, and a device using same. The method comprises: determining the overlapping or not between a first physical uplink control channel (PUCCH) and a second PUCCH; and determining a transmission method for the first PUCCH and the second PUCCH on the basis of the determining. Here, the first PUCCH is an uplink control channel that is frequency division multiplexed (FDM) with a data channel, and the second PUCCH is an uplink control channel that is time division multiplexed (TDM) with the data channel.

公开(公告)号：US20200235871A1

公开(公告)日：2020-07-23

申请号：US16814002

申请日：2020-03-10

Applicant: LG Electronics Inc.

Inventor： Jaehyung KIM ,  Seonwook KIM ,  Changhwan PARK ,  Hanjun PARK ,  Joonkui AHN ,  Suckchel YANG

IPC: H04L5/00 ,  H04W56/00 ,  H04W72/04

Abstract: Disclosed is a method for transmitting, by a user equipment, an uplink signal using carrier aggregation in a wireless communication system. More specifically, the method includes transmitting a first uplink signal to a base station on a first component carrier included in a first timing advance group (TAG); and transmitting a second uplink signal to the base station on a second component carrier included in a second TAG.

公开(公告)号：US20200221410A1

公开(公告)日：2020-07-09

申请号：US16821343

申请日：2020-03-17

Applicant: LG Electronics Inc.

Inventor： Jaehyung KIM ,  Suckchel YANG ,  Seonwook KIM ,  Changhwan PARK ,  Joonkui AHN

IPC: H04W56/00 ,  H04W76/27 ,  H04W72/04 ,  H04W74/08 ,  H04L27/26

Abstract: Provided are a method of adjusting uplink timing in a wireless communication system and an apparatus therefor. Specifically, a method for a user equipment to adjust uplink timing in a wireless communication system includes transmitting, to a base station, an uplink signal, receiving, from the base station, a timing advance (TA) command configured based on the uplink signal, and performing uplink transmission to the base station by applying a timing advance (TA) indicated by the TA command. The TA command may be interpreted based on subcarrier spacing of at least one frequency resource region to which the TA is to be applied.

公开(公告)号：US20200221317A1

公开(公告)日：2020-07-09

申请号：US16817952

申请日：2020-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Yunjung YI ,  Suckchel YANG

IPC: H04W16/26 ,  H04L1/08 ,  H04W4/70 ,  H04L5/00 ,  H04J11/00

Abstract: A method of operating a device includes receiving a radio resource control (RRC) signal including first information representing at least one repetition level, among a plurality of repetition levels of a physical downlink shared channel (PDSCH), receiving, via a downlink control channel, downlink control information (DCI) including an index, and receiving the repetitions of the PDSCH over a number of subframes.

公开(公告)号：US20200177266A1

公开(公告)日：2020-06-04

申请号：US16785297

申请日：2020-02-07

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon KANG ,  Suckchel YANG

IPC: H04B7/08 ,  H04W72/04 ,  H04L5/00 ,  H04L1/18 ,  H04W74/08 ,  H04W74/02 ,  H04L25/02 ,  H04W76/27

Abstract: Disclosed herein is a method of performing uplink (UL) transmission in a wireless communication system, including receiving, by a user equipment (UE), configuration information on beam failure detection and beam failure recovery from a base station (BS) through RRC signaling, receiving a reference signal (RS) from the BS, transmitting, to the BS, a physical random access channel (PRACH) for a beam failure recovery request (BFRQ) related with a new beam RS having a reception quality equal to or greater than a predetermined threshold based on the configuration information, if a beam failure for the RS is detected, receiving, from the BS, downlink control information (DCI) for the PRACH, wherein the DCI is received in a beam failure recovery (BFR) search space in which a response for the PRACH is searched, and performing UL transmission, to the BS, based on the DCI, wherein the UL transmission is performed using the same spatial filter as a spatial filter used for transmission of the PRACH.

公开(公告)号：US20200169373A1

公开(公告)日：2020-05-28

申请号：US16779197

申请日：2020-01-31

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui AHN ,  Suckchel YANG

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/18 ,  H04L1/16

Abstract: A method for a wireless device to which a plurality of serving cells are assigned transmitting uplink control information (UCI) in a wireless communication system is provided. The wireless device transmits uplink data in a subframe to a physical uplink shared channel (PUSCH), and transmits UCI including a hybrid automatic repeat request (HARQ) ACK/NACK and periodic channel state information (CSI) in the subframe to a physical uplink shared channel (PUCCH). The PUCCH and the PUSCH have the same demodulation reference signal (DMRS) location within the subframe.

公开(公告)号：US20200162305A1

公开(公告)日：2020-05-21

申请号：US16752391

申请日：2020-01-24

Applicant: LG ELECTRONICS INC.

Inventor： Sukhyon YOON ,  Hyunsoo KO ,  Kijun KIM ,  Eunsun KIM ,  Suckchel YANG

IPC: H04L27/26 ,  H04W74/08 ,  H04L5/00

Abstract: A UE transmits a random access channel (RACH) preamble and a BS receives the RACH channel. The BS configures the RACH preamble to align boundaries of the RACH preamble with boundaries of OFDM symbols on which the RACH preamble is configured in the time domain. The UE generates/transmits the RACH preamble to align the boundaries of the RACH preamble with the boundaries of OFDM symbols on which the RACH preamble is configured in the time domain.

公开(公告)号：US20200162224A1

公开(公告)日：2020-05-21

申请号：US16773660

申请日：2020-01-27

Applicant: LG Electronics Inc.

Inventor： Joonkui AHN ,  Suckchel YANG

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/18 ,  H04L1/00

Abstract: A method for transmitting a positive-acknowledgement/negative-acknowledgement (ACK/NACK) in a wireless communication system, performed by a wireless device, includes receiving a plurality of downlink (DL) grants on a plurality of serving cells, each DL grant including a counter downlink assignment index (DAI) and an ACK/NACK resource indicator (ARI), the counter DAI indicating an accumulative number of PDSCHs received by the wireless device for a corresponding DL grant, receiving a plurality of physical downlink shared channels (PDSCHs) associated with the plurality of DL grants, selecting one of a plurality of sets of PUCCH resources based on a payload size of uplink control information (UCI), the UCI including ACK/NACK bits for the plurality of PDSCHs, determining a PUCCH resource within the selected set of PUCCH resources based on an ARI included in the most recently received DL grant among the plurality of DL grants and transmitting the UCI by using a PUCCH format associated with the determined PUCCH resource.

公开(公告)号：US20200100139A1

公开(公告)日：2020-03-26

申请号：US16065755

申请日：2018-03-23

Applicant: LG Electronics Inc.

Inventor： Seonwook KIM ,  Suckchel YANG ,  Joonkui AHN

IPC: H04W28/04 ,  H04W72/12 ,  H04L1/18 ,  H04L1/16

Abstract: A method for transmitting acknowledgement information by a user equipment (UE) in a wireless communication system, and an apparatus for supporting the same are disclosed. More particularly, a method for allowing a user equipment (UE) to transmit acknowledgement information for each code block group (CBG) with respect to data received within one or more slots is disclosed.