公开(公告)号：US08787299B2

公开(公告)日：2014-07-22

申请号：US14054612

申请日：2013-10-15

Applicant: LG Electronics Inc.

Inventor： Seung Hee Han ,  Sung Ho Moon ,  Jae Hoon Chung ,  Moonil Lee ,  Hyun Woo Lee

IPC: H04W4/00

CPC classification number: H04W72/0413 ,  H04B7/068 ,  H04L1/0057 ,  H04L1/0073 ,  H04L1/1671 ,  H04L5/001 ,  H04L5/0026 ,  H04L5/0053 ,  H04L5/0055 ,  H04L27/2636 ,  H04L27/2697

Abstract: A method for transmitting a signal via physical uplink control channel (PUCCH) in a wireless communication system and an apparatus for performing the method are provided. Control information bits are modulated to generate N1 modulation symbols, wherein N1 is twice a number of subcarriers in one resource block (RB). The modulation symbols are spread by using various orthogonal codes to generate a plurality of sequences and the generated plurality of sequences are transmitted using different slots of a subframe through different antenna ports, each sequence of the plurality of sequences being mapped on a corresponding single carrier frequency division multiple access symbol in a corresponding slot.

Abstract translation: 提供了一种用于在无线通信系统中经由物理上行链路控制信道（PUCCH）发送信号的方法和用于执行该方法的装置。 控制信息比特被调制以产生N1个调制符号，其中N1是一个资源块（RB）中的子载波数量的两倍。 调制符号通过使用各种正交码进行扩展以产生多个序列，并且通过不同的天线端口发送使用不同时隙的子帧的生成的多个序列，多个序列的每个序列被映射到对应的单载波频率 在相应的时隙中分割多路访问符号。

公开(公告)号：US20130215997A1

公开(公告)日：2013-08-22

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: H04L1/00

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：US10219236B2

公开(公告)日：2019-02-26

申请号：US15647976

申请日：2017-07-12

Applicant: LG ELECTRONICS INC.

Inventor： Seunghee Han ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Hyun Woo Lee ,  Dong Cheol Kim ,  Jin Sam Kwak

IPC: H04W56/00 ,  H04L27/26 ,  H04L25/03 ,  H04J13/00 ,  H04J11/00 ,  H04B7/212 ,  H04B1/7083 ,  H04W48/16 ,  H04B1/7073 ,  H04J13/10

Abstract: A method of performing cell search includes receiving a primary synchronization signal (PSS) comprising a primary synchronization code (PSC) and receiving a secondary synchronization signal (SSS) comprising a first secondary synchronization code (SSC) and a second SSC, wherein the SSS includes a first SSS and a second SSS, the first SSC and the second SSC are arranged in that order in the first SSS, and the second SSC and the first SSC are arranged in that order in the second SSS. Detection performance on synchronization signals can be improved, and cell search can be performed more reliably.

公开(公告)号：US10091770B2

公开(公告)日：2018-10-02

申请号：US15479995

申请日：2017-04-05

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04L27/20 ,  H04L27/22 ,  H04J11/00 ,  H04L1/16

Abstract: A method of transmitting control signals in a wireless communication system includes multiplexing a first control signal with a second control signal in a slot, the slot comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols in time domain, the plurality of OFDM symbols being divided into a plurality of data OFDM symbols and a plurality of reference signal (RS) OFDM symbols, wherein the first control signal is mapped to the plurality of data OFDM symbols after the first control signal is spread by a base sequence in the frequency domain, the RS is mapped to the plurality of RS OFDM symbols, the second control signal is mapped to at least one of the plurality of RS OFDM symbols, and transmitting the first control signal and the second control signal in the slot.

公开(公告)号：US10044461B2

公开(公告)日：2018-08-07

申请号：US15697210

申请日：2017-09-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04J13/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04J13/0062 ,  H04J11/005 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L23/02 ,  H04L27/2607 ,  H04L27/261 ,  H04L27/2613

Abstract: Method for generating reference signal sequence using grouping is explained. In this method, base sequences are grouped such that each group contains at least one base sequence of each length, so UE(s) can use various length sequences as a reference signal. And in this method, inter cell interference caused by using various length sequence as a reference signal sequence can be minimized by grouping sequences having the high cross correlation relation.

公开(公告)号：US09825746B2

公开(公告)日：2017-11-21

申请号：US15407919

申请日：2017-01-17

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hoon Chung ,  Hyun Woo Lee ,  Young Hyoun Kwon ,  Ji Woong Jang ,  Seung Hee Han

IPC: H04L12/24 ,  H04L5/00 ,  H04W72/04 ,  H04L1/16

CPC classification number: H04L5/0055 ,  H04L1/0029 ,  H04L1/16 ,  H04L1/1607 ,  H04L1/1614 ,  H04L1/1621 ,  H04L1/1664 ,  H04L1/1671 ,  H04L5/001 ,  H04L5/0057 ,  H04W28/04 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1268

Abstract: A method for receiving ACK/NACK (Acknow1edge/Negative ACK) information at a base station in a wireless communication system, the method includes configuring a plurality of carriers for downlink signal transmission; transmitting downlink signals including a semi-persistent scheduled downlink signal through the plurality of carriers; and receiving an ACK/NACK payload for the plurality of carriers, the ACK/NACK payload including a plurality of concatenated ACK/NACK sets, wherein each ACK/NACK set is associated with a respective one of the plurality of carriers and has one or more ACK/NACK bits, wherein the ACK/NACK payload includes an ACK/NACK bit for the semi-persistent scheduled downlink signal, and the ACK/NACK bit for the semi-persistent scheduled downlink signal is positioned at an end of a corresponding ACK/NACK set.

公开(公告)号：US09794039B2

公开(公告)日：2017-10-17

申请号：US14812939

申请日：2015-07-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04L5/00 ,  H04J11/00 ,  H04L1/18 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04J11/005 ,  H04L1/1893 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0021 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0073 ,  H04W72/0413

Abstract: A method for transmitting a reference signal by a user equipment (UE) in a wireless communication system. The UE generates an uplink reference signal in a subframe comprising first, second, third, fourth, fifth, sixth and seventh orthogonal frequency division multiplexing (OFDM) symbols in time domain and a plurality of subcarriers in frequency domain. The UE transmits the uplink reference signal to a base station in the third, fourth and fifth OFDM symbols. The transmitted uplink reference signal is hopped in the frequency domain, based on a cell specific hopping parameter.

公开(公告)号：US09674843B2

公开(公告)日：2017-06-06

申请号：US15016621

申请日：2016-02-05

Applicant: LG Electronics Inc.

Inventor： Hyun Woo Lee ,  Hyuk Min Son ,  Hye Young Choi ,  Seung Hee Han ,  Jin Min Kim

IPC: H04W72/04 ,  H04W52/32 ,  H04W24/02 ,  H04W74/08 ,  H04L5/00 ,  H04W24/10 ,  H04W52/34 ,  H04W52/24

CPC classification number: H04W72/0473 ,  H04L5/001 ,  H04W24/02 ,  H04W24/10 ,  H04W52/242 ,  H04W52/325 ,  H04W52/34 ,  H04W74/0833

Abstract: Provided are a method and an apparatus for determining transmission power of a preamble in a wireless communication system. A terminal estimates secondary cell (SCell) path loss with respect to a downlink (DL) component carrier (CC), which is in a linkage relationship with an uplink (UL) component carrier inside the SCell; decides the transmission power of a physical random access channel (PRACH) preamble based on the SCell path loss that is estimated; and transmits the PRACH preamble to a base station through the UL CC inside the SCell, based on the transmission power that is decided, wherein the SCell and a primary cell (PCell) comprises a carrier aggregation (CA) system, the PCell is a cell from which the terminal performs radio resource control (RRC) connection with the base station, and wherein the Scell is at least one cell from residual cells in the carrier aggregation excluding the PCell.

公开(公告)号：US09655084B2

公开(公告)日：2017-05-16

申请号：US15141195

申请日：2016-04-28

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04W74/08 ,  H04L27/26 ,  H04W72/12

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04L5/0091 ,  H04L27/261 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/1263 ,  H04W74/0866

Abstract: A method and apparatus for requesting uplink resources in a wireless communication system is provided. A user equipment determines whether a scheduling request for requesting uplink resources is triggered. If the scheduling request is triggered, the user equipment transmits a first set of frequency domain sequences and a second set of frequency domain sequences in a subframe.

公开(公告)号：US09654273B2

公开(公告)日：2017-05-16

申请号：US15145505

申请日：2016-05-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04L27/20 ,  H04L1/16

CPC classification number: H04W72/0413 ,  H04J11/0026 ,  H04L1/0026 ,  H04L1/1671 ,  H04L5/0007 ,  H04L5/0021 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/006 ,  H04L27/20 ,  H04L27/22 ,  H04L27/2605 ,  H04L27/2608 ,  H04L27/2613 ,  H04L27/262 ,  H04W72/0446

Abstract: A method of transmitting control signals in a wireless communication system includes multiplexing a first control signal with a second control signal in a slot, the slot comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols in time domain, the plurality of OFDM symbols being divided into a plurality of data OFDM symbols and a plurality of reference signal (RS) OFDM symbols, wherein the first control signal is mapped to the plurality of data OFDM symbols after the first control signal is spread by a base sequence in the frequency domain, the RS is mapped to the plurality of RS OFDM symbols, the second control signal is mapped to at least one of the plurality of RS OFDM symbols, and transmitting the first control signal and the second control signal in the slot.