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公开(公告)号：US20090135925A1
公开(公告)日：2009-05-28
申请号：US12088816
申请日：2006-10-03
申请人： Yasuhiro Hamaguchi , Kimihiko Imamura , Shimpei To , Hideo Namba
发明人： Yasuhiro Hamaguchi , Kimihiko Imamura , Shimpei To , Hideo Namba
IPC分类号： H04L27/28
CPC分类号： H04L27/2626 , H04J2013/0037 , H04L5/0026 , H04L5/0048 , H04L25/0204 , H04L25/0226 , H04L27/2602
摘要： In a cellular system using an OFDM scheme, a transmitter multiplies subcarriers for channel estimation by codes and transmits them, the codes being such that a phase difference φ of the code multiplied with consecutive subcarriers for channel estimation is constant, and a code of every M consecutive subcarriers (M being 2 or an integer greater than 2) is mutually orthogonal with a code multiplied with same subcarriers of another transmitter.
摘要翻译： 在使用OFDM方案的蜂窝系统中，发射机将用于信道估计的副载波乘以码并发送它们，这些码使得与用于信道估计的连续子载波相乘的码的相位差phi是恒定的，并且每个M的码 连续的子载波（M为2或大于2的整数）与与另一发射机的相同子载波相乘的码相互正交。
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公开(公告)号：US08520748B2
公开(公告)日：2013-08-27
申请号：US12088816
申请日：2006-10-03
申请人： Yasuhiro Hamaguchi , Kimihiko Imamura , Shimpei To , Hideo Namba
发明人： Yasuhiro Hamaguchi , Kimihiko Imamura , Shimpei To , Hideo Namba
IPC分类号： H04K1/10
CPC分类号： H04L27/2626 , H04J2013/0037 , H04L5/0026 , H04L5/0048 , H04L25/0204 , H04L25/0226 , H04L27/2602
摘要： In a cellular system using an OFDM scheme, a transmitter multiplies subcarriers for channel estimation by codes and transmits them, the codes being such that a phase difference φ of the code multiplied with consecutive subcarriers for channel estimation is constant, and a code of every M consecutive subcarriers (M being 2 or an integer greater than 2) is mutually orthogonal with a code multiplied with same subcarriers of another transmitter.
摘要翻译： 在使用OFDM方案的蜂窝系统中，发射机将用于信道估计的副载波乘以码并发送它们，这些码使得与用于信道估计的连续子载波相乘的码的相位差phi是恒定的，并且每个M的码 连续的子载波（M为2或大于2的整数）与与另一发射机的相同子载波相乘的码相互正交。
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3.发明申请MULTICARRIER RECEIVING APPARATUS, MULTICARRIER COMMUNICATION SYSTEM AND DEMODULATION METHOD 有权多媒体接收装置，多媒体通信系统和解调方法公开(公告)号：US20090046791A1
公开(公告)日：2009-02-19
申请号：US12092509
申请日：2006-11-15
CPC分类号： H04L27/2647 , H04L1/0072 , H04L25/0202
摘要： To suppress effects produced on other terminals as much as possible, while obtaining the advantage of soft-combining. A multicarrier receiving apparatus that receives a packet comprised of at least a propagation path estimation symbol and a scrambled information symbol to demodulate, and has propagation path estimating sections 3-a and 3-b that respectively estimate propagation paths of radio signals transmitted from a plurality of transmission antennas, scramble multiplying sections 5-a and 5-b that respectively perform the same scrambling on propagation path estimation values output from the propagation path estimating sections 3-a and 3-b as scrambling provided in the information symbol on the transmission antennas sides, an adding section 3-c that adds scrambled propagation path estimation values, and a propagation path compensating section 7 that performs propagation path compensation of the information symbol included in the received packet using a signal output from the adding section 3-c.
摘要翻译： 尽可能地抑制对其他终端产生的影响，同时获得软组合的优点。 一种多载波接收装置，其接收至少包括传播路径估计符号和加扰信息符号的分组，以进行解调，并具有分别估计从多个传输路径发送的无线电信号的传播路径的传播路径估计部分3-a和3-b 的发送天线，扰频乘法部分5-a和5-b，它们分别对从传播路径估计部分3-a和3-b输出的传播路径估计值进行相同的加扰，作为在发送天线上的信息符号中提供的加扰 增加加扰传播路径估计值的加法部分3-c，以及使用从加法部分3-c输出的信号执行包含在接收分组中的信息符号的传播路径补偿的传播路径补偿部分7。
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4.发明授权Multicarrier receiving apparatus, multicarrier communication system and demodulation method 有权多载波接收装置，多载波通信系统和解调方法公开(公告)号：US08467462B2
公开(公告)日：2013-06-18
申请号：US12092509
申请日：2006-11-15
IPC分类号： H04K1/10
CPC分类号： H04L27/2647 , H04L1/0072 , H04L25/0202
摘要： To suppress effects produced on other terminals as much as possible, while obtaining the advantage of soft-combining. A multicarrier receiving apparatus that receives a packet comprised of at least a propagation path estimation symbol and a scrambled information symbol to demodulate, and has propagation path estimating sections 3-a and 3-b that respectively estimate propagation paths of radio signals transmitted from a plurality of transmission antennas, scramble multiplying sections 5-a and 5-b that respectively perform the same scrambling on propagation path estimation values output from the propagation path estimating sections 3-a and 3-b as scrambling provided in the information symbol on the transmission antennas sides, an adding section 3-c that adds scrambled propagation path estimation values, and a propagation path compensating section 7 that performs propagation path compensation of the information symbol included in the received packet using a signal output from the adding section 3-c.
摘要翻译： 尽可能地抑制对其他终端产生的影响，同时获得软组合的优点。 一种多载波接收装置，其接收至少包括传播路径估计符号和加扰信息符号的分组，以进行解调，并具有分别估计从多个传输路径发送的无线电信号的传播路径的传播路径估计部分3-a和3-b 的发送天线，扰频乘法部分5-a和5-b，它们分别对从传播路径估计部分3-a和3-b输出的传播路径估计值进行相同的加扰，作为在发送天线上的信息符号中提供的加扰 增加加扰传播路径估计值的加法部分3-c，以及使用从加法部分3-c输出的信号执行包含在接收分组中的信息符号的传播路径补偿的传播路径补偿部分7。
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5.发明申请MULTICARRIER-SIGNAL RECEIVING APPARATUS AND MULTICARRIER-SIGNAL TRANSMITTING APPARATUS 有权多媒体信号接收装置和多媒体信令传输装置公开(公告)号：US20090168923A1
公开(公告)日：2009-07-02
申请号：US12374249
申请日：2007-07-19
IPC分类号： H04L27/00
CPC分类号： H04L25/0232 , H04B7/0671 , H04L1/0033 , H04L1/0042 , H04L1/04 , H04L5/0044 , H04L25/0204 , H04L25/022 , H04L27/2626 , H04L27/2627 , H04L27/2647 , H04L27/265
摘要： A multicarrier-signal receiving apparatus includes: a Fourier-transformer that performs a Fourier transform, on reception signals to extract subcarriers; a channel estimator that performs channel estimation on one of the extracted subcarriers using channel estimation symbols included in a subcarrier group to which the one of the extracted subcarriers belongs, the subcarrier group including subcarriers to which an identical phase rotation is added upon transmission; and a channel compensator that performs channel compensation on data symbols included in the one of the extracted subcarriers using a result of the channel estimation performed by the channel estimator on the one of the extracted subcarriers.
摘要翻译： 多载波信号接收装置包括：对接收信号进行傅立叶变换的傅里叶变换器，以提取子载波; 信道估计器，其使用包括在所提取的子载波中的一个子载波所属的子载波组中的信道估计符号，在所提取的子载波之一上执行信道估计，所述子载波组包括在发送时相加相同旋转的副载波; 以及信道补偿器，使用在所提取的子载波之一上由信道估计器执行的信道估计的结果，对包括在所提取的一个子载波中的一个的数据符号执行信道补偿。
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公开(公告)号：US08009751B2
公开(公告)日：2011-08-30
申请号：US12091430
申请日：2006-10-27
IPC分类号： H04L27/28
CPC分类号： H04L27/2634 , H04B7/0671 , H04L5/0016 , H04L5/0023 , H04L25/0204 , H04L27/2602 , H04L27/2647
摘要： A transmitter employing an OFDM system, including a phase rotating portion which gives a same phase rotation amount to each group configured with a plurality of consecutive subcarriers modulated by a data symbol or a known symbol, a rotation amount determining portion which sets a phase rotation for each antenna set or each transmitter, and a scheduling portion which determines an existence of phase rotation.
摘要翻译： 一种使用OFDM系统的发射机，包括相位旋转部分，该相位旋转部分对由配置有由数据符号或已知符号调制的多个连续子载波的每个组提供相同的相位旋转量;旋转量确定部分， 每个天线组或每个发射机，以及一个确定相位旋转存在的调度部分。
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公开(公告)号：US08014458B2
公开(公告)日：2011-09-06
申请号：US12551385
申请日：2009-08-31
IPC分类号： H04L27/28
CPC分类号： H04L27/2634 , H04B7/0671 , H04L5/0016 , H04L5/0023 , H04L25/0204 , H04L27/2602 , H04L27/2647
摘要： A transmitter employing an OFDM system, having a phase rotating portion which gives a same phase rotation amount to each group configured with a plurality of consecutive subcarriers modulated by data or a known signal, a rotation amount determining portion which sets a phase rotation for each antenna set or each transmitter; and, and an allocating portion which allocates a plurality of groups to a receiver.
摘要翻译： 一种采用OFDM系统的发射机，具有相位旋转部分，该相位旋转部分对由配置有由数据或已知信号调制的多个连续副载波的每个组提供相同的相位旋转量;旋转量确定部分，其设定每个天线的相位旋转 设置或每个发射机; 以及分配部分，其将多个组分配给接收机。
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8.发明授权Multicarrier-signal receiving apparatus and multicarrier-signal transmitting apparatus 有权多载波信号接收装置和多载波信号发送装置公开(公告)号：US08396165B2
公开(公告)日：2013-03-12
申请号：US12374249
申请日：2007-07-19
CPC分类号： H04L25/0232 , H04B7/0671 , H04L1/0033 , H04L1/0042 , H04L1/04 , H04L5/0044 , H04L25/0204 , H04L25/022 , H04L27/2626 , H04L27/2627 , H04L27/2647 , H04L27/265
摘要： A multicarrier-signal receiving apparatus includes: a Fourier-transformer that performs a Fourier transform, on reception signals to extract subcarriers; a channel estimator that performs channel estimation on one of the extracted subcarriers using channel estimation symbols included in a subcarrier group to which the one of the extracted subcarriers belongs, the subcarrier group including subcarriers to which an identical phase rotation is added upon transmission; and a channel compensator that performs channel compensation on data symbols included in the one of the extracted subcarriers using a result of the channel estimation performed by the channel estimator on the one of the extracted subcarriers.
摘要翻译： 多载波信号接收装置包括：对接收信号进行傅立叶变换的傅里叶变换器，以提取子载波; 信道估计器，其使用包括在所提取的子载波中的一个子载波所属的子载波组中的信道估计符号，在所提取的子载波之一上执行信道估计，所述子载波组包括在发送时相加相同旋转的副载波; 以及信道补偿器，使用在所提取的子载波之一上由信道估计器执行的信道估计的结果，对包括在所提取的一个子载波中的一个的数据符号执行信道补偿。
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公开(公告)号：US08170145B2
公开(公告)日：2012-05-01
申请号：US12551368
申请日：2009-08-31
CPC分类号： H04L27/2634 , H04B7/0671 , H04L5/0016 , H04L5/0023 , H04L25/0204 , H04L27/2602 , H04L27/2647
摘要： A receiver employing an OFDM system which uses a frequency band that is constituted by a plurality of subchannels, and receiving a signal added a phase rotation which is made to respectively differ for each transmission antennas of transmitter and transmitted from the transmission antennas, having a virtual subchannel quality estimating portion which estimates the quality of a propagation path in the case of same phase rotation is added to signal transmitted from transmitter, each group configured with a plurality of consecutive subcarriers.
摘要翻译： 一种采用OFDM系统的接收机，其使用由多个子信道构成的频带，并且接收相加旋转的信号，所述相位旋转对于发射机的每个发送天线和从发送天线发送的天线分别不同，具有虚拟 在相同相位旋转的情况下估计传播路径的质量的子信道质量估计部分被添加到从发射机发送的信号，每个组配置有多个连续的副载波。
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公开(公告)号：US08155221B2
公开(公告)日：2012-04-10
申请号：US12551351
申请日：2009-08-31
IPC分类号： H04K1/10
CPC分类号： H04L27/2634 , H04B7/0671 , H04L5/0016 , H04L5/0023 , H04L25/0204 , H04L27/2602 , H04L27/2647
摘要： A receiver employing an OFDM system which uses a frequency band that is constituted by a plurality of subchannels, and receiving a signal added a phase rotation which is made to respectively differ for each transmission antennas of transmitter and transmitted from the transmission antennas, having an informing portion which informs the transmitter of an information in subchannel units for deciding a phase rotation which is added to the signal.
摘要翻译： 一种使用OFDM系统的接收机，其使用由多个子信道构成的频带，并且接收相加旋转的信号，该相位旋转对于发射机的每个发送天线和发送天线发送的天线分别不同，具有通知 将子信道单元中的信息通知给发射机的部分，用于确定加到信号上的相位旋转。
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