公开(公告)号：US08681895B2

公开(公告)日：2014-03-25

申请号：US13847987

申请日：2013-03-20

Applicant: LG Electronics Inc.

Inventor： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

IPC: H04L27/04

CPC classification number: H04L1/0023 ,  H04J13/0062 ,  H04J13/0074 ,  H04J13/22 ,  H04L27/2613 ,  H04L27/2657 ,  H04W56/00

Abstract: A method for transmitting a random access preamble to a base station includes generating the random access preamble from a Zadoff-Chu (ZC) sequence having a length N, wherein the random access preamble is generated by considering a cyclic shift of the ZC sequence; and transmitting the random access preamble to the base station, wherein the cyclic shift is given by using a variable M corresponding to a Doppler shift of one subcarrier spacing, and wherein parameters associated with defining the cyclic shift are differently defined based on whether the variable M is less than ⅓ of the length N.

Abstract translation: 用于向基站发送随机接入前导码的方法包括：从具有长度N的Zadoff-Chu（ZC）序列生成随机接入前同步码，其中通过考虑ZC序列的循环移位来生成随机接入前同步码; 以及将所述随机接入前导码发送到所述基站，其中，通过使用与一个子载波间隔的多普勒频移对应的变量M来给出所述循环移位，并且其中与定义所述循环移位相关联的参数基于所述变量M 小于长度N的1/3。

公开(公告)号：US11546118B2

公开(公告)日：2023-01-03

申请号：US17156098

申请日：2021-01-22

Applicant: LG Electronics Inc.

Inventor： Yeong Hyeon Kwon ,  Jae Hoon Chung ,  Seung Hee Han ,  So Yeon Kim

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/18 ,  H04L1/16 ,  H04L1/00 ,  H04W72/12

Abstract: A method of generating Acknowledgement/Negative Acknowledgement (ACK/NACK) information by a user equipment (UE) in a wireless communication system is discussed. The method includes receiving, by the UE from a base station (BS), a plurality of codewords through a plurality of downlink frequency bands related to a plurality of downlink carriers, wherein the UE is configured with a 1-codeword mode or a 2-codeword mode for each of the plurality of downlink frequency bands independently, and wherein a number of supported codewords is one for the 1-codeword mode or two for the 2-codeword mode; determining, by the UE, a total number of ACK/NACK bits, wherein the total number of ACK/NACK bits is determined based on a total number of the plurality of downlink carriers and the number of supported codewords; and generating, by the UE, a sequence of the ACK/NACK bits based on the total number of the ACK/NACK bits.

公开(公告)号：US10652061B2

公开(公告)日：2020-05-12

申请号：US15436433

申请日：2017-02-17

Applicant: LG Electronics Inc.

Inventor： Seung Hee Han ,  Moon Il Lee ,  Yeong Hyeon Kwon ,  Jin Sam Kwak ,  Hyun Woo Lee ,  Dong Cheol Kim ,  Jae Hoon Chung ,  Sung Ho Moon ,  Min Seok Noh ,  Hyun Soo Ko

IPC: H04W4/00 ,  H04L27/26 ,  H04B7/06 ,  H04L1/18 ,  H04L1/16 ,  H04B7/0413 ,  H04W72/04 ,  H04W72/08 ,  H04W72/12 ,  H04L1/00 ,  H04L5/00

Abstract: A method and an apparatus of transmitting information in a wireless communication system are provided. The method includes transmitting information based on a first resource index through a first antennae and transmitting the information based on a second resource index through a second antennae.

公开(公告)号：US10575223B2

公开(公告)日：2020-02-25

申请号：US15096054

申请日：2016-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hoon Chung ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  So Yeon Kim

IPC: H04W4/00 ,  H04W36/00 ,  H04J11/00 ,  H04L5/00 ,  H04W74/08 ,  H04W24/10 ,  H04W36/30

Abstract: The present invention relates to a wireless communication system which supports carrier aggregation. More particularly, the present invention relates to a method and to an apparatus for enabling a user equipment to perform a handover in a wireless communication system which supports carrier aggregation. The method for performing a handover comprises the steps of: transmitting a measurement report on a target cell to a serving cell; receiving, from the serving cell, a message containing a signature route sequence index, cyclic shift parameters, and information related to the component carrier of the target cell; confirming contention-based signatures generated on the basis of the signature route sequence index and cyclic shift parameters; and transmitting one of said contention-based signatures to the target cell for random access, via one or more component carriers, on the basis of said information related to the component carrier. The present invention also relates to an apparatus for the method.

公开(公告)号：USRE47661E1

公开(公告)日：2019-10-22

申请号：US16132316

申请日：2018-09-14

Applicant: LG ELECTRONICS INC.

Inventor： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

IPC: H04L27/04 ,  H04L27/26 ,  H04L1/00 ,  H04W56/00 ,  H04J13/22 ,  H04J13/00

Abstract: A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)-applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell.

公开(公告)号：US10341997B2

公开(公告)日：2019-07-02

申请号：US15862557

申请日：2018-01-04

Applicant: LG ELECTRONICS INC.

Inventor： Seung Hee Han ,  Ji Woong Jang ,  Jae Hoon Chung ,  Han Gyu Cho ,  Yeong Hyeon Kwon ,  Seung Hyun Kang

IPC: H04B7/26 ,  H04L1/00 ,  H04W72/04 ,  H04L27/18 ,  H04L27/26 ,  H04L5/00 ,  H04J13/00 ,  H04L1/18 ,  H04J11/00

Abstract: Disclosed are a method and a device for transmitting uplink control information (UCI) by a terminal in a wireless communication system. The UCI transmission method comprises the steps of: generating an encoding information bit stream by performing channel coding for a UCI bit stream; generating complex modulation symbols by performing modulation for the generated encoding information bit stream; spreading the complex modulation symbols in block-wise on the basis of an orthogonal sequence; and transmitting the spread complex modulation symbols to a base station. The encoding information bit stream is generated by a channel coding for circularly repeating the UCI bit stream.

公开(公告)号：US20190098631A1

公开(公告)日：2019-03-28

申请号：US16202240

申请日：2018-11-28

Applicant: LG Electronics Inc.

Inventor： Jae Hoon Chung ,  So Yeon Kim ,  Sungho Moon ,  Seunghee Han ,  Yeong Hyeon Kwon

IPC: H04W72/04 ,  H04L5/00 ,  H04J11/00 ,  H04L1/00 ,  H04W72/12 ,  H04W72/14 ,  H04W88/08

Abstract: Embodiments of the present invention are directed to a method and apparatus for transmitting and receiving a control signal (for example, PDCCH signal) in an asymmetric multicarrier environment. The method for transmitting a control signal for an asymmetric multicarrier in a wireless connection system according to one embodiment of the present invention comprises: determining the size of a carrier indicator field (CIF) indicating a downlink component carrier (DL CC) by which downlink data is transmitted, on the basis of a maximum value of the number of DL CCs and of the number of uplink component carriers (UL CCs) being managed in a base station; transmitting the CIF on a 1st DL CC to a terminal through a physical downlink control channel (PDCCH); and transmitting downlink data on a 2nd DL CC indicated by the CIF to the terminal through a physical downlink shared channel (PDSCH).

公开(公告)号：US10193614B2

公开(公告)日：2019-01-29

申请号：US16011190

申请日：2018-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Kyu Jin Park ,  Jae Hoon Chung ,  Han Gyu Cho ,  Yeong Hyeon Kwon ,  Sung Ho Moon

IPC: H04W4/06 ,  H04B7/155 ,  H04B7/26 ,  H04L5/00 ,  H04L27/26

Abstract: A method for receiving data by a relay station (RS) in a wireless communication system includes: receiving radio resource allocation information via an R-PDCCH (R-Physical Downlink Control Channel); and receiving data from a base station (BS) via an R-PDSCH (R-Physical Downlink Shared Channel) indicated by the radio resource allocation information, wherein the radio resource allocation information includes information regarding an allocation of resource blocks in a frequency domain and information regarding an allocation of OFDM symbols in a time domain. Since the radio resource allocation information providing information regarding a time relationship between a control channel transmitted by the BS to a UE and a control channel transmitted by the RS to a UE connected to the RS is provided, the RS can reliably receive a signal transmitted from the BS in a backhaul link between the BS and the RS in a wireless communication system including the RS.

公开(公告)号：US09992763B2

公开(公告)日：2018-06-05

申请号：US15222736

申请日：2016-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Moon Il Lee ,  Jae Hoon Chung ,  Hyun Soo Ko ,  Bin Chul Ihm ,  Yeong Hyeon Kwon

IPC: G06F11/00 ,  H04J1/16 ,  H04L1/00 ,  H04L12/26 ,  H04W72/02 ,  H04B7/06 ,  H04W52/14 ,  H04W52/36 ,  H04W72/04 ,  H04W52/34 ,  H04B7/0404 ,  H04W52/32 ,  H04W52/42 ,  H04W52/24

CPC classification number: H04W72/02 ,  H04B7/0404 ,  H04B7/0691 ,  H04W52/146 ,  H04W52/242 ,  H04W52/325 ,  H04W52/346 ,  H04W52/367 ,  H04W52/42 ,  H04W72/0413 ,  H04W72/0473

Abstract: A user equipment in wireless communication system is provided. The user equipment includes an antenna unit including a plurality of antennas, a control unit for grouping the plurality of antennas into a predetermined number of antenna groups and controlling separately transmission power of each of the predetermined number of antenna groups, and a transmitting unit, connected to the control unit, for transmitting at least one of data and control information to a base station via at least one of the predetermined number of antenna groups.

公开(公告)号：US09973310B2

公开(公告)日：2018-05-15

申请号：US15592479

申请日：2017-05-11

Applicant: LG ELECTRONICS INC.

Inventor： Min Seok Noh ,  Jae Hoon Chung ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Moon Il Lee

IPC: H04L29/06 ,  H04L5/00

CPC classification number: H04L5/0007 ,  H04L5/0048

Abstract: A method for transmitting an aperiodic sounding reference signal (SRS) to a base station by a user equipment (UE) in a wireless communication system, the method includes receiving, from the base station, an uplink grant or a downlink grant, with an indicator indicating a transmission of the aperiodic SRS; and transmitting, to the base station, the aperiodic SRS in a first uplink subframe; wherein the first uplink subframe is a subframe firstly configured after a second uplink subframe for the aperiodic SRS, wherein, if the uplink grant is received, the second uplink subframe is a subframe in which an uplink data signal scheduled by the uplink grant is transmitted, wherein, if the downlink grant is received, the second uplink subframe is a subframe in which an uplink control signal corresponding to the downlink grant is transmitted.