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    Method for setting cyclic shift considering frequency offset
    34.
    再颁专利
    Method for setting cyclic shift considering frequency offset 有权

    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.

    Method for transmitting information in a broadcast system
    37.
    发明授权
    Method for transmitting information in a broadcast system 有权

    公开(公告)号：US09750009B2

    公开(公告)日：2017-08-29

    申请号：US15393005

    申请日：2016-12-28

    Applicant: LG ELECTRONICS INC.

    Inventor： Sung Ho Moon ,  Minseok Noh ,  Yeong Hyeon Kwon ,  Jin Sam Kwak ,  Dong Cheol Kim ,  Seung Hee Han ,  Hyun Woo Lee

    IPC: H04W4/00 ,  H04W72/04

    CPC classification number: H04W72/042 ,  H04L5/0053 ,  H04L5/0058 ,  H04W48/12 ,  H04W72/005 ,  H04W72/0446

    Abstract: A method of allocating control information in a wireless communication system is provided. The method includes: allocating essential control information of a first system to a first sub-frame in a frame including a plurality of sub-frames each of which comprises a plurality of orthogonal frequency-division multiplexing (OFDM) symbols; and allocating essential control information of a second system to an nth sub-frame in a fixed position from the first sub-frame (where n is an integer satisfying n>1). Accordingly, in a frame supporting heterogeneous systems, essential control information can be fixedly allocated to a specific position while maintaining the number of system switching points, at which switching occurs between the systems, to one even if a radio resource allocation amount changes between the systems, and thus the essential control information that must be received by all user equipments can be effectively provided without the increase of overhead.

    Sequence generation and transmission method based on time and frequency domain transmission unit
    39.
    发明授权
    Sequence generation and transmission method based on time and frequency domain transmission unit 有权
    基于时域和频域传输单元的序列生成和传输方法

    公开(公告)号：US09538508B2

    公开(公告)日：2017-01-03

    申请号：US14563787

    申请日：2014-12-08

    Applicant: LG Electronics Inc.

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

    IPC: H04W72/04 ,  H04L5/02 ,  H04L27/26 ,  H04L1/16

    CPC classification number: H04L5/023 ,  H04L1/1614 ,  H04L27/261 ,  H04L27/2614 ,  H04W72/0406

    Abstract: A method of transmitting, by a user equipment, control information in a communication system. The method according to one embodiment includes multiplying transmission information corresponding to the control information by a frequency direction sequence, of which length corresponds to a number of subcarriers in a resource block, to generate a first output signal; multiplying the first output signal by a time direction sequence, of which length corresponds to a number of symbols used for transmission of the control information in a transmission unit, to generate a second output signal; and transmitting the second output signal in the transmission unit.

    Abstract translation: 一种通过用户设备在通信系统中发送控制信息的方法。 根据一个实施例的方法包括将与控制信息相对应的传输信息乘以频率方向序列，其长度对应于资源块中的子载波数，以产生第一输出信号; 将第一输出信号乘以时间方向序列，其长度对应于用于在发送单元中发送控制信息的符号数，以产生第二输出信号; 以及在所述发送单元中发送所述第二输出信号。

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