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    Transmission apparatus and method for use in mobile communication system based on orthogonal frequency division multiplexing scheme
    4.
    发明授权
    Transmission apparatus and method for use in mobile communication system based on orthogonal frequency division multiplexing scheme 有权
    基于正交频分复用方案的移动通信系统中使用的传输装置和方法

    公开(公告)号：US07417964B2

    公开(公告)日：2008-08-26

    申请号：US10872807

    申请日：2004-06-21

    申请人： Young-Kwon Cho ,  Katz Marcos Daniel ,  Seok-Hyun Yoon ,  Dong-Seek Park ,  Seong-Ill Park ,  Ho-Kyu Choi ,  Pan-Yuh Joo ,  Young-Kyun Kim ,  Hyeon-Woo Lee

    发明人： Young-Kwon Cho ,  Katz Marcos Daniel ,  Seok-Hyun Yoon ,  Dong-Seek Park ,  Seong-Ill Park ,  Ho-Kyu Choi ,  Pan-Yuh Joo ,  Young-Kyun Kim ,  Hyeon-Woo Lee

    IPC分类号： H04B7/204

    CPC分类号： H04L5/006 ,  H04L5/0017 ,  H04L5/0046 ,  H04L5/0048

    摘要： A transmitter for a mobile communication system based on an OFDM scheme and a method for controlling the same. The transmitter can implement a characteristic of a multiple access scheme based on an OFDM scheme, a characteristic of a CDMA scheme, and a characteristic of a frequency hopping scheme which has very strong resistance to the frequency selective fading. An apparatus for transmitting information bit sequences from a BS (Base Station) transmitter to different users, includes a plurality of channelizers for dividing a single frame of information bit sequences to be transmitted to individual users into a plurality of times according to a given time interval, simultaneously transmitting the information bit sequences to the individual users within the plurality of division times, dividing the information bit sequences, spreading the divided information bit sequences using different Walsh codes, converting the spread information bit sequences into a single sequence associated with the individual users, and outputting the single sequence; and a frequency hopper for dividing the single sequence, distributing the spread information bit sequences over a plurality of bandwidths capable of mapping-processing the spread information bit sequences with sub-carrier frequencies, and preventing each of the bandwidths from overlapping with time-frequency cells given by the given time interval.

    摘要翻译： 一种用于基于OFDM方案的移动通信系统的发射机及其控制方法。 发射机可以基于OFDM方案，CDMA方案的特征以及对频率选择性衰落具有非常强的抵抗性的跳频方案的特性来实现多址方案的特性。 用于从BS（基站）发射机向不同用户发送信息比特序列的装置包括：多个信道化器，用于根据给定的时间间隔将要发送给各个用户的单个信息比特序列划分成多个时间 同时在多个分割时间内将信息比特序列发送给各个用户，分割信息比特序列，使用不同的沃尔什码扩展分割的信息比特序列，将扩展信息比特序列转换成与各个用户相关联的单个序列 并输出单个序列; 以及用于分割单个序列的频率漏斗，在扩展信息比特序列分布在能够对扩展信息比特序列进行映射处理的子载波频率的多个带宽上分布，并且防止每个带宽与时频小区重叠 由给定的时间间隔给出。

    Apparatus and method for transmitting/receiving pilot signals in an OFDM communication system
    6.
    发明申请
    Apparatus and method for transmitting/receiving pilot signals in an OFDM communication system 审中-公开
    在OFDM通信系统中发送/接收导频信号的装置和方法

    公开(公告)号：US20050094550A1

    公开(公告)日：2005-05-05

    申请号：US10978814

    申请日：2004-11-01

    申请人： Hoon Huh ,  Soon-Young Yoon ,  Jae-Hee Cho ,  Pan-Yuh Joo ,  Hyeon-Woo Lee ,  Dong-Seek Park

    发明人： Hoon Huh ,  Soon-Young Yoon ,  Jae-Hee Cho ,  Pan-Yuh Joo ,  Hyeon-Woo Lee ,  Dong-Seek Park

    IPC分类号： H04J11/00 ,  H04L27/26

    CPC分类号： H04L5/0048 ,  H04L5/0007 ,  H04L25/0226 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2662

    摘要： A radio communication system divides an entire frequency band into a plurality of subcarrier bands, forms a symbol with signals on the subcarrier bands, forms a frame with a plurality of symbols, transmits a pilot signal within symbols in a predetermined position of the frame, and transmits a data signal within symbols other than the symbols for transmitting the pilot signal. A transmitter allocates subcarriers through which the reference signal is transmitted, wherein the subcarriers are allocated to have an exclusive relation with subcarriers through which reference signals of other transmitters are transmitted, generates the pilot signal, performs an inverse fast Fourier transform (IFFT) on the pilot signal by applying an IFFT size which is less than or equal to an IFFT size applied to the data signal, and transmits the IFFT-processed reference signal to a receiver.

    摘要翻译： 无线电通信系统将整个频带划分为多个子载波频带，在子载波频带上形成具有信号的符号，形成具有多个符号的帧，在帧的预定位置的符号内发送导频信号，以及 在除了用于发送导频信号的符号之外的符号内发送数据信号。 发射机分配通过其发送参考信号的子载波，其中子载波被分配为与其他发射机的参考信号通过其发送的子载波具有排他关系，产生导频信号，在该载波上执行快速傅立叶逆变换（IFFT） 通过应用小于或等于应用于数据信号的IFFT尺寸的IFFT尺寸的IFFT尺寸的导频信号，并将IFFT处理的参考信号发送到接收机。

    Apparatus and method for forming subchannel in a communication system
    7.
    发明申请
    Apparatus and method for forming subchannel in a communication system 审中-公开
    在通信系统中形成子信道的装置和方法

    公开(公告)号：US20080317151A1

    公开(公告)日：2008-12-25

    申请号：US12214281

    申请日：2008-06-18

    申请人： Chi-Woo Lim ,  Tae-Young Kim ,  Ho-Kyu Choi ,  Jae-Weon Cho ,  Hyeon-Woo Lee ,  Dong-Seek Park

    发明人： Chi-Woo Lim ,  Tae-Young Kim ,  Ho-Kyu Choi ,  Jae-Weon Cho ,  Hyeon-Woo Lee ,  Dong-Seek Park

    IPC分类号： H04L27/28

    CPC分类号： H04L5/0048 ,  H04L5/0007 ,  H04L5/0032 ,  H04L25/0226

    摘要： A method for forming a subchannel in a communication system where a first communication system and a second communication system coexist. The method includes determining a first tile set by arranging first tiles remaining after forming at least one first subchannel for the first communication system among frequency resources, including a plurality of tiles, available for the first communication system; determining a second tile set by inserting second tiles which are independent of the frequency resources and are available for the second communication system into the determined first tile set at predetermined positions; forming at least one second subchannel for the second communication system by selecting a predetermined number of tiles from the second tile set; and performing communication using at least one of the first subchannel and the second subchannel.

    摘要翻译： 一种在第一通信系统和第二通信系统共存的通信系统中形成子信道的方法。 该方法包括通过在包括可用于第一通信系统的多个瓦片的频率资源中形成用于第一通信系统的至少一个第一子信道之后布置剩余的第一瓦片来确定第一瓦片组; 通过插入独立于所述频率资源的第二瓦片来确定第二瓦片组，并且可将所述第二通信系统用于在所述确定的在预定位置处的第一瓦片组; 通过从所述第二瓦片组中选择预定数量的瓦片来形成用于所述第二通信系统的至少一个第二子信道; 以及使用所述第一子信道和所述第二子信道中的至少一个来执行通信。

    Apparatus and method for generating a preamble sequence in an orthogonal frequency division multiplexing communication system
    8.
    发明申请
    Apparatus and method for generating a preamble sequence in an orthogonal frequency division multiplexing communication system 有权
    在正交频分复用通信系统中生成前置码序列的装置和方法

    公开(公告)号：US20050105460A1

    公开(公告)日：2005-05-19

    申请号：US10993113

    申请日：2004-11-19

    申请人： Chang-Ho Suh ,  Chan-Soo Hwang ,  Hyeon-Woo Lee ,  Dong-Seek Park

    发明人： Chang-Ho Suh ,  Chan-Soo Hwang ,  Hyeon-Woo Lee ,  Dong-Seek Park

    IPC分类号： H04J11/00 ,  H04L27/06 ,  H04L27/26

    CPC分类号： H04L5/0048 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2662

    摘要： Disclosed are an apparatus and a method for generating a preamble sequence in an orthogonal frequency division multiplexing communication system including a reference base station and a plurality of non-reference base stations and employing m sub-carriers in a frequency domain. A reference preamble sequence having a length equal to n is generated and mapped on a one-to-one basis with n sub-carriers of the m sub-carriers. A final preamble sequence is generated from a base station when the base station is a reference base station, or a phase of the reference preamble sequence is shifted by a predetermined phase in order to generate a phase-shifted final preamble sequence when the base station is a non-reference base station, thereby minimizing interference between neighbor base stations.

    摘要翻译： 公开了一种用于在包括参考基站和多个非参考基站并且在频域中采用m个子载波的正交频分复用通信系统中产生前同步码序列的装置和方法。 生成具有等于n的长度的参考前置码序列，并与m个副载波的n个子载波一一对应地映射。 当基站是参考基站时，从基站产生最后的前同步码序列，或者将基准前置码序列的相位移位预定的相位，以便当基站是 非参考基站，从而最小化相邻基站之间的干扰。

    Apparatus and method for generating a preamble sequence in an orthogonal frequency division multiplexing communication system
    9.
    发明授权
    Apparatus and method for generating a preamble sequence in an orthogonal frequency division multiplexing communication system 有权
    在正交频分复用通信系统中生成前置码序列的装置和方法

    公开(公告)号：US07675841B2

    公开(公告)日：2010-03-09

    申请号：US10993113

    申请日：2004-11-19

    申请人： Chang-Ho Suh ,  Chan-Soo Hwang ,  Hyeon-Woo Lee ,  Dong-Seek Park

    发明人： Chang-Ho Suh ,  Chan-Soo Hwang ,  Hyeon-Woo Lee ,  Dong-Seek Park

    IPC分类号： H04J11/00

    CPC分类号： H04L5/0048 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2662

    摘要： Disclosed are an apparatus and a method for generating a preamble sequence in an orthogonal frequency division multiplexing communication system including a reference base station and a plurality of non-reference base stations and employing m sub-carriers in a frequency domain. A reference preamble sequence having a length equal to n is generated and mapped on a one-to-one basis with n sub-carriers of the m sub-carriers. A final preamble sequence equivalent to the reference preamble sequence is generated when the base station is a reference base station, or a phase of the reference preamble sequence is shifted by a predetermined phase in order to generate a phase-shifted final preamble sequence when the base station is a non-reference base station, thereby minimizing interference between neighbor base stations.

    摘要翻译： 公开了一种用于在包括参考基站和多个非参考基站并且在频域中采用m个子载波的正交频分复用通信系统中产生前同步码序列的装置和方法。 生成具有等于n的长度的参考前置码序列，并与m个副载波的n个子载波一一对应地映射。 当基站是参考基站时，产生等同于参考前置码序列的最后前导码序列，或者当基准前导码序列的相位偏移了预定相位以产生相移最终前导码序列时，当基站 站是非参考基站，从而最小化相邻基站之间的干扰。

    Apparatus and method for transmitting/receiving a pilot signal for distinguishing a base station in a communication system using an OFDM scheme
    10.
    发明授权
    Apparatus and method for transmitting/receiving a pilot signal for distinguishing a base station in a communication system using an OFDM scheme 有权
    用于使用OFDM方案发送/接收用于区分通信系统中的基站的导频信号的装置和方法

    公开(公告)号：US07369531B2

    公开(公告)日：2008-05-06

    申请号：US10978794

    申请日：2004-11-01

    申请人： Jae-Hee Cho ,  Hoon Huh ,  Soon-Young Yoon ,  Chang-Ho Suh ,  Hyeon-Woo Lee ,  Dong-Seek Park

    发明人： Jae-Hee Cho ,  Hoon Huh ,  Soon-Young Yoon ,  Chang-Ho Suh ,  Hyeon-Woo Lee ,  Dong-Seek Park

    IPC分类号： H04J1/00 ,  H04J11/00 ,  H04B7/204

    CPC分类号： H04J13/10 ,  H04J13/0022 ,  H04J13/0048 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0226 ,  H04L25/03866 ,  H04L27/2613

    摘要： A method for transmitting reference signals in a radio communication system in which a frequency band is divided into a plurality of sub-frequency bands. The reference signals are transmitted through at least one of the plurality of sub-frequency bands, and data signals are transmitted through the plurality of sub-frequency bands except for the at least one of the plurality of sub-frequency bands. The method includes the steps of: determining a reference signal pattern representing positions of the at least one of the plurality of sub-frequency bands through which the reference signals are transmitted in consideration of a preset time and a preset bandwidth; generating the reference signals using a PN code and a Walsh code; and transmitting the reference signals through the sub-frequency bands corresponding to the reference signal pattern.

    摘要翻译： 一种用于在将频带划分成多个子频带的无线通信系统中发送参考信号的方法。 参考信号通过多个子频带中的至少一个发送，并且除了多个子频带中的至少一个以外的多个子频带中发送数据信号。 该方法包括以下步骤：考虑预设时间和预置带宽，确定表示参考信号通过其发送的多个子频带中的至少一个的位置的参考信号模式; 使用PN码和沃尔什码生成参考信号; 以及通过与参考信号模式对应的子频带发送参考信号。