Receiver, a transmitter, a radio communication system and a channel estimation method
    1.
    发明授权
    Receiver, a transmitter, a radio communication system and a channel estimation method 有权
    接收机,发射机,无线电通信系统和信道估计方法

    公开(公告)号:US07590200B2

    公开(公告)日:2009-09-15

    申请号:US11106433

    申请日:2005-04-15

    IPC分类号: H04B7/10

    摘要: A radio communication system including a transmitter and a receiver (100) for transmitting MIMO channel signals is provided. The transmitter comprises a pilot signal insertion controller (93) for inserting a pilot signal for channel estimation into at least a leading frame; and an information symbol controller for controlling the number of information symbols to be contained in a frame, based on the existence of the pilot signal. The receiver comprises a received signal replica generator (112) for generating received signal replicas based on previously obtained provisional channel estimation values and transmission signal estimation values; a canceller (111) for removing, from a received signal, received signal replicas of at least a part of streams that are not channel estimation target streams; and a channel estimation value generator (113) for generating channel estimation values by a filter using outputs from the removing unit and the transmission signal estimation values.

    摘要翻译: 提供了一种包括用于发送MIMO信道信号的发射机和接收机(100)的无线电通信系统。 所述发射机包括导频信号插入控制器(93),用于将用于信道估计的导频信号插入至少一个引导帧; 以及信息符号控制器,用于基于导频信号的存在来控制要包含在帧中的信息符号的数量。 接收机包括接收信号副本发生器(112),用于基于先前获得的临时信道估计值和传输信号估计值来产生接收信号副本; 用于从接收到的信号中去除不是信道估计目标流的流的至少一部分的接收信号副本的消除器(111) 以及信道估计值发生器(113),用于通过使用来自去除单元的输出和发送信号估计值的滤波器来生成信道估计值。

    Transmission apparatus and receiving apparatus
    2.
    发明申请
    Transmission apparatus and receiving apparatus 有权
    传输装置和接收装置

    公开(公告)号:US20050265226A1

    公开(公告)日:2005-12-01

    申请号:US11135413

    申请日:2005-05-24

    IPC分类号: H04J11/00 H04L25/02 H04L27/26

    摘要: A transmission apparatus used in a radio communication system adopting the OFDM scheme is disclosed. The transmission apparatus includes: a dividing inverse Fourier transform part including plural transform parts, wherein the dividing inverse Fourier transform part divides a signal to be transmitted into plural signals, and each of the plural transform parts performs inverse Fourier transform on one of the plural signals; a peak control part for outputting a peak control signal based on peaks that are detected from output signals of the dividing inverse Fourier transform part; and a peak reducing process part for adjusting a weight or an arranging order of an output signal of the dividing inverse Fourier transform part according to the peak control signal to output an adjusted signal, and synthesizing the adjusted signal with other signal so as to output a synthesized signal.

    摘要翻译: 公开了在采用OFDM方案的无线通信系统中使用的发送装置。 发送装置包括:分割逆傅里叶变换部分,包括多个变换部分,其中分割付里叶逆变换部分将要发送的信号划分为多个信号,并且多个变换部分中的每一个对多个信号中的一个信号进行傅立叶逆变换 ; 峰值控制部分,用于基于从分割付里叶逆变换部分的输出信号检测的峰值输出峰值控制信号; 以及峰值降低处理部分,用于根据峰值控制信号调整除法逆傅立叶逆变换部分的输出信号的权重或排列顺序,以输出调整后的信号,并将调整后的信号与其他信号合成,以输出 合成信号。

    Receiver, a transmitter, a radio communication system and a channel estimation method
    3.
    发明申请
    Receiver, a transmitter, a radio communication system and a channel estimation method 有权
    接收机,发射机,无线电通信系统和信道估计方法

    公开(公告)号:US20050276360A1

    公开(公告)日:2005-12-15

    申请号:US11106433

    申请日:2005-04-15

    摘要: A radio communication system including a transmitter and a receiver (100) for transmitting MIMO channel signals is provided. The transmitter comprises a pilot signal insertion controller (93) for inserting a pilot signal for channel estimation into at least a leading frame; and an information symbol controller for controlling the number of information symbols to be contained in a frame, based on the existence of the pilot signal. The receiver comprises a received signal replica generator (112) for generating received signal replicas based on previously obtained provisional channel estimation values and transmission signal estimation values; a canceller (111) for removing, from a received signal, received signal replicas of at least a part of streams that are not channel estimation target streams; and a channel estimation value generator (113) for generating channel estimation values by a filter using outputs from the removing unit and the transmission signal estimation values.

    摘要翻译: 提供了一种包括用于发送MIMO信道信号的发射机和接收机(100)的无线电通信系统。 所述发射机包括导频信号插入控制器(93),用于将用于信道估计的导频信号插入至少一个引导帧; 以及信息符号控制器,用于基于导频信号的存在来控制要包含在帧中的信息符号的数量。 接收机包括接收信号副本发生器(112),用于基于先前获得的临时信道估计值和传输信号估计值来产生接收信号副本; 用于从接收到的信号中去除不是信道估计目标流的流的至少一部分的接收信号副本的消除器(111) 以及信道估计值发生器(113),用于通过使用来自去除单元的输出和发送信号估计值的滤波器来生成信道估计值。

    Transmission apparatus and receiving apparatus
    4.
    发明授权
    Transmission apparatus and receiving apparatus 有权
    传输装置和接收装置

    公开(公告)号:US07646820B2

    公开(公告)日:2010-01-12

    申请号:US11135413

    申请日:2005-05-24

    IPC分类号: H04K1/10

    摘要: A transmission apparatus used in a radio communication system adopting the OFDM scheme is disclosed. The transmission apparatus includes: a dividing inverse Fourier transform part including plural transform parts, wherein the dividing inverse Fourier transform part divides a signal to be transmitted into plural signals, and each of the plural transform parts performs inverse Fourier transform on one of the plural signals; a peak control part for outputting a peak control signal based on peaks that are detected from output signals of the dividing inverse Fourier transform part; and a peak reducing process part for adjusting a weight or an arranging order of an output signal of the dividing inverse Fourier transform part according to the peak control signal to output an adjusted signal, and synthesizing the adjusted signal with other signal so as to output a synthesized signal.

    摘要翻译: 公开了在采用OFDM方案的无线通信系统中使用的发送装置。 发送装置包括:分割逆傅里叶变换部分,包括多个变换部分,其中分割付里叶逆变换部分将要发送的信号划分为多个信号,并且多个变换部分中的每一个对多个信号中的一个信号进行傅立叶逆变换 ; 峰值控制部分,用于基于从分割付里叶逆变换部分的输出信号检测的峰值输出峰值控制信号; 以及峰值降低处理部分,用于根据峰值控制信号调整除法逆傅立叶逆变换部分的输出信号的权重或排列顺序,以输出调整后的信号,并将调整后的信号与其他信号合成,以输出 合成信号。

    Transmitter and transmission control method
    5.
    发明授权
    Transmitter and transmission control method 有权
    发射机和传输控制方法

    公开(公告)号:US07463698B2

    公开(公告)日:2008-12-09

    申请号:US11131260

    申请日:2005-05-18

    IPC分类号: H04B1/02

    摘要: A transmitter has a peak reducing part carrying out peak reduction processing; an OFDM signal generating part generating an OFDM signal from an input information signal; a cyclic shifting part generating a signal obtained from cyclically shifting the OFDM signal; and an adding part adding the OFDM signal and the cyclically shifted signal together.

    摘要翻译: 发射机具有进行峰值降低处理的峰值降低部分; OFDM信号生成部,根据输入信息信号生成OFDM信号; 循环移位部分,生成从循环移位OFDM信号获得的信号; 以及将OFDM信号和循环移位信号相加的加法部分。

    Transmitter and transmission controlling method
    6.
    发明申请
    Transmitter and transmission controlling method 有权
    发射机和传输控制方法

    公开(公告)号:US20050265468A1

    公开(公告)日:2005-12-01

    申请号:US11136520

    申请日:2005-05-25

    CPC分类号: H04L27/2621

    摘要: An OFDM transmitter (100) is disclosed. The OFDM transmitter comprises: a sorter (103-1) for sorting plural input complex signals and partitioning them into plural groups; plural IFFTs (103-2) for performing inverse Fourier transform on the input complex signals in groups; a peak reducer (103-4) for performing peak reduction, based on outputs from at least one of the IFFTs; and a multiple discrete signal generator (103-5) for generating a designated number of discrete signals from outputs of the peak reducer.

    摘要翻译: 公开了一种OFDM发射机(100)。 OFDM发射机包括:分类器(103-1),用于对多个输入复合信号进行分类并将其分成多个组; 用于对组中的输入复信号执行逆傅立叶变换的多个IFFT(103-2) 基于来自所述IFFT中的至少一个的输出,执行峰值降低的峰值减速器(103-4); 以及用于从所述峰值衰减器的输出产生指定数量的离散信号的多个离散信号发生器(103-5)。

    Transmitter and transmission controlling method
    7.
    发明授权
    Transmitter and transmission controlling method 有权
    发射机和传输控制方法

    公开(公告)号:US07499496B2

    公开(公告)日:2009-03-03

    申请号:US11136520

    申请日:2005-05-25

    IPC分类号: H04K1/10

    CPC分类号: H04L27/2621

    摘要: An OFDM transmitter (100) is disclosed. The OFDM transmitter comprises: a sorter (103-1) for sorting plural input complex signals and partitioning them into plural groups; plural IFFTs (103-2) for performing inverse Fourier transform on the input complex signals in groups; a peak reducer (103-4) for performing peak reduction, based on outputs from at least one of the IFFTs; and a multiple discrete signal generator (103-5) for generating a designated number of discrete signals from outputs of the peak reducer.

    摘要翻译: 公开了一种OFDM发射机(100)。 所述OFDM发射机包括:分类器(103-1),用于对多个输入复合信号进行分类并将其分成多个组; 多个IFFT(103-2),用于对组中的输入复信号进行傅里叶逆变换; 基于来自所述IFFT中的至少一个的输出,执行峰值降低的峰值减速器(103-4); 以及用于从所述峰值衰减器的输出产生指定数量的离散信号的多重离散信号发生器(103-5)。

    Radio repeater and radio relay transmission method
    9.
    发明申请
    Radio repeater and radio relay transmission method 有权
    无线电中继器和无线中继传输方法

    公开(公告)号:US20050130587A1

    公开(公告)日:2005-06-16

    申请号:US10989249

    申请日:2004-11-17

    IPC分类号: H04B7/155 H04B7/26 H04B1/60

    CPC分类号: H04B7/15564

    摘要: A channel capacity is increased by using MIMO (multiple input multiple output) radio relaying system. A transmission is made from a transmitter 10 using a first antenna 111 and a second antenna 112 having polarization characteristics which are orthogonalized to each other. A reception is made in a repeater 201 using reception antennas 211 and 212 each having the same polarization characteristic as the first and the second antenna 111 and 112, respectively. Each signal received by the first and the second reception antenna 211 and 212, respectively, is passed through loop interference suppressors 271 and 272, respectively, and through amplifiers 241 and 242, respectively, to be transmitted from the first and the second transmission antenna 211 and 212 having the same polarization characteristics as the second and the first antenna 112 and 111, respectively. A reception is made in a receiver 30 by antennas 312 and 314 having the same polarization characteristic as the first antenna 111, and the reception is also made by antennas 311 and 313 having the same polarization characteristic as the second antenna 112. These received signals are subject to a signal separation processing in MIMO equalizer 32.

    摘要翻译: 通过使用MIMO(多输入多输出)无线电中继系统来增加信道容量。 使用具有彼此正交的极化特性的第一天线11 1和第二天线11 2从发射机10进行发送。 使用具有与第一和第二相同的极化特性的接收天线21 1和21 2,在中继器20< 1>中进行接收 分别为天线11 1和11 2。 由第一和第二接收天线21 1和21 2分别接收的每个信号通过环路干扰抑制器27 1和27 分别从第一和第二发送天线21发送的分别通过放大器24 1和24 2 2的子信号(SUB)2< SUB>< SUB> 具有与第二天线11和第二天线11和11 1分别具有相同偏振特性的第一和第二和第二二极管。 通过具有与第一天线11 1 1相同的极化特性的天线31 2和31 4在接收机30中进行接收,并且 接收也由具有与第二天线11 2 2相同的极化特性的天线31< 1>和31< 3&gt ;. 这些接收信号在MIMO均衡器32中进行信号分离处理。

    Radio repeater and radio relay transmission method
    10.
    发明授权
    Radio repeater and radio relay transmission method 有权
    无线电中继器和无线中继传输方法

    公开(公告)号:US07430397B2

    公开(公告)日:2008-09-30

    申请号:US10989249

    申请日:2004-11-17

    IPC分类号: H04B3/36 H04B7/14

    CPC分类号: H04B7/15564

    摘要: A radio repeater including at least first and second relay systems, each including a reception antenna configured to receive a radio signal, a loop interference suppressor, connected to the reception antenna, configured to suppress a loop interference signal in the received radio signal from said reception antenna, an amplifier configured to amplify the loop interference-suppressed radio signal from the loop interference suppressors, and a transmission antenna having a polarization characteristic, which is orthogonal to a polarization characteristic of said reception antenna, configured to transmit the output of said amplifier.

    摘要翻译: 一种无线电中继器,包括至少第一和第二中继系统,每个中继系统包括被配置为接收无线电信号的接收天线,连接到接收天线的环路干扰抑制器,被配置为抑制所接收的来自所述接收的无线电信号中的环路干扰信号 天线,被配置为放大来自环路干扰抑制器的环路干扰抑制无线电信号的放大器,以及具有与所述接收天线的极化特性正交的极化特性的发送天线,被配置为发送所述放大器的输出。