公开(公告)号：US20210321413A1

公开(公告)日：2021-10-14

申请号：US17267458

申请日：2019-08-08

Applicant: LG Electronics Inc.

Inventor： Seokmin SHIN ,  Seonwook KIM ,  Changhwan PARK ,  Hanjun PARK ,  Joonkui AHN ,  Suckchel YANG ,  Seunggye HWANG

IPC: H04W72/04 ,  H04W76/27 ,  H04W56/00 ,  H04B17/318

Abstract: The present specification provides a method for transmitting uplink data by using a preset uplink resource (PUR) in a wireless communication system. More specifically, the method, which is performed by a terminal, includes: a step for receiving setting information from a base station in an RRC connected state, the setting information being for transmitting uplink data by using the PUR in an RRC idle state; a step for transitioning from the RRC connected state to the RRC idle state; and a step for using the PUR to transmit the uplink data to the base station in the RRC idle state on the basis of the setting information.

公开(公告)号：US20210306049A1

公开(公告)日：2021-09-30

申请号：US17266047

申请日：2019-08-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04W72/04 ,  H04W4/70 ,  H04L25/02 ,  H04L5/00 ,  H04L27/26

Abstract: The present specification discloses a method for receiving, by a terminal, a machine type communication (MTC) physical downlink control channel (MPDCCH) from a base station in a wireless communication system, the method comprising: receiving, from a base station, configuration information related to reception of a demodulation reference signal (DMRS) to which one of a plurality of candidate precoders applied to a cell specific reference signal (CRS) is applied; receiving, from the base station, the DMRS and control information through the MPDCCH on the basis of the configuration information; performing channel estimation on the MPDCCH on the basis of at least one of the DMRS or the CRS; and demodulating the control information on the basis of the channel estimation, wherein when a subframe which is not available for the CRS exists in an MPDCCH repetition, the channel estimation is performed using only the DMRS.

公开(公告)号：US20210235400A1

公开(公告)日：2021-07-29

申请号：US17214183

申请日：2021-03-26

Applicant: LG Electronics Inc.

Inventor： Seokmin SHIN ,  Changhwan PARK ,  Joonkui AHN ,  Seunggye HWANG

IPC: H04W56/00 ,  H04J11/00 ,  H04L5/14

Abstract: Disclosed are a method for transmitting and receiving a synchronization signal in a wireless communication system supporting NarrowBand-Internet of Things (NB-IoT) and an apparatus therefor. Specifically, the method for transmitting and receiving a synchronization signal may include: receiving, from a base station, a narrowband synchronization signal; and performing a cell search procedure for the base station based on the narrowband synchronization signal, in which the narrowband synchronization signal may include a narrowband primary synchronization signal and a narrowband secondary synchronization signal, the narrowband primary synchronization signal and the narrowband secondary synchronization signal may be transmitted in different subframe, and the subframe in which the narrowband secondary synchronization signal is transmitted may be configured differently according to a type of a radio frame structure.

公开(公告)号：US20210153163A1

公开(公告)日：2021-05-20

申请号：US17129301

申请日：2020-12-21

Applicant: LG Electronics Inc.

Inventor： Seunggye HWANG ,  Changhwan PARK ,  Joonkui AHN ,  Hanjun PARK ,  Suckchel YANG ,  Sukhyon YOON ,  Seokmin SHIN

IPC: H04W68/02 ,  H04W52/02

Abstract: One disclosure in the present specification presents a method for a wireless device to receive a paging message. The method may comprise: a step of deciding a wake up signal occasion (WUSO) window for attempting to receive a wake up signal (WUS); and a step of monitoring a downlink control channel during a paging window so as to attempt to receive a paging message, if the WUS is received within the decided WUSO window. Here, the WUSO window may be decided according to a duration size and offset.

公开(公告)号：US20210112590A1

公开(公告)日：2021-04-15

申请号：US16496370

申请日：2018-03-22

Applicant: LG Electronics Inc.

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

IPC: H04W74/00 ,  H04W74/08 ,  H04W72/14 ,  H04W76/27 ,  H04W72/04 ,  H04B1/7143 ,  H04L1/18

Abstract: The present invention relates to a method for performing a random access procedure in a wireless communication system and an apparatus therefor, the method comprising: a step of transmitting, to a base station, a random access preamble, wherein the random access preamble indicates an uplink data transmission in a Msg3 stage of the random access procedure; a step of receiving, from the base station, together with a random access response message including first uplink grant information, second uplink grant information for the uplink data transmission in the Msg3 stage; and a step of transmitting, to the base station, a radio resource control (RRC) connection request message with the first uplink grant information and performing data transmission with the second uplink grant information.

公开(公告)号：US20200322200A9

公开(公告)日：2020-10-08

申请号：US16535551

申请日：2019-08-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L12/46 ,  H04L5/22 ,  H04L5/14 ,  H04L5/00 ,  H04L1/00 ,  H04W4/70

Abstract: One disclosure of the present specification proposes a method for receiving a Narrowband Reference Signal (NRS) by a Narrow band Internet of Things (NB-IoT) device. The method may comprise receiving the NRS on at least one or more orthogonal frequency division multiplexing (OFDM) symbols. The one or more OFDM symbols are in a time division duplex (TDD) subframe. If the TDD subframe corresponds to a TDD special subframe, the one or more OFDM symbols for receiving the NRS is determined based on which TDD special subframe configuration index among a plurality of TDD special configuration indexes is used by the TDD special subframe.

公开(公告)号：US20200288509A1

公开(公告)日：2020-09-10

申请号：US16883216

申请日：2020-05-26

Applicant: LG ELECTRONICS INC.

Inventor： Changhwan PARK ,  Seokmin SHIN ,  Joonkui AHN ,  Seunggye HWANG

IPC: H04W74/08

Abstract: This specification provides a method for performing early data transmission in a random access procedure in a wireless communication system.More specifically, the method performed by a user equipment (UE) includes: receiving, from a base station, a control message including first information indicating whether selection for a second transport size (TBS) smaller than a first TBS for message 3 is permitted and second information for the first TBS; transmitting, to the base station, a request for the EDT by using message 1; receiving, from the base station, message 2 including a UL grant for the message 3; determining a repetition number for the message 3 based on the control message and the UL grant; and transmitting the message 3 to the base station by the repetition number.Therefore, there is an effect that battery consumption of the UE can be reduced.

公开(公告)号：US20200221433A1

公开(公告)日：2020-07-09

申请号：US16786624

申请日：2020-02-10

Applicant: LG Electronics Inc.

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

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/14

Abstract: The present invention relates to a wireless communication system and, specifically, to a method comprising the steps of: repeatedly transmitting a PUSCH; and repeatedly receiving the PDSCH in a DL duration immediately following after repeated transmission of the PDSCH, wherein when a terminal operates in an in-band mode, each PDSCH is received from an OFDM symbol subsequent to a k-th OFDM symbol in each corresponding time unit within the DL duration (k>1), and in the case where the terminal operates in a guard-band mode or a stand-alone mode, signal reception is skipped at a starting portion of the DL duration when the PDSCH is repeatedly received.

公开(公告)号：US20200178311A1

公开(公告)日：2020-06-04

申请号：US16782284

申请日：2020-02-05

Applicant: LG Electronics Inc.

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

IPC: H04W74/08 ,  H04W16/14 ,  H04W74/00

Abstract: This specification provides a method for transmitting an NPRACH preamble in a wireless communication system supporting TDD. More specifically, the method performed by the UE includes: receiving, from a base station, NPRACH configuration information including control information for a repetition number of NPRACH preambles including symbol groups through a higher layer signaling; and transmitting, to the base station, the NPRACH preamble repeatedly through frequency hopping of a symbol group based on the NPRACH configuration information, in which a frequency location of the symbol group is determined based on a first parameter related to a start subcarrier and a second parameter related to the frequency hopping.

公开(公告)号：US20200162299A1

公开(公告)日：2020-05-21

申请号：US16752561

申请日：2020-01-24

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe KIM ,  Kijun KIM ,  Hyunsoo KO ,  Byounghoon KIM ,  Yunjung YI ,  Seokmin SHIN

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

Abstract: The present invention provides a method and devices for transmitting and receiving a synchronization signal and a method for generating a synchronization signal in a wireless access system supporting narrowband Internet of Things (NB-IoT). A method for transmitting a primary synchronization signal (PSS) by a base station in a wireless access system supporting narrowband Internet of Things (NB-IoT), according to an embodiment of the present invention, can comprise the steps of: repeatedly generating first sequences n times so as to generate primary synchronization signals; multiplying n first sequences by second sequences and thus generating n primary synchronization signals; and transmitting n primary synchronization signals by means of n OFDM symbols, respectively. The size of a bandwidth used in the wireless access system supporting NB-IoT is the size of one physical resource block (PRB), and one PRB can comprise twelve subcarriers in a frequency domain.