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1.发明授权Radio transmission system and method, and transmitter apparatus and receiver apparatus used in the radio transmission system 有权无线传输系统和方法，以及在无线电传输系统中使用的发射机装置和接收机装置公开(公告)号：US07324434B2
公开(公告)日：2008-01-29
申请号：US10231284
申请日：2002-08-30
IPC分类号： H04J11/00
CPC分类号： H04B1/692 , H04B2201/70705 , H04J11/005 , H04L1/0003 , H04L5/0021 , H04L25/0216 , H04L25/0228 , H04L27/2647
摘要： A radio transmission system is configured to, on the occasion of radio transmission of information between a transmitter and a receiver, perform the radio transmission of information using an orthogonal frequency and code division multiplexing transmission scheme of parallelly transmitting identical information by a plurality of sub-carriers. The radio transmission system has a spreading factor variable control transmitting device for parallelly converting information channel-coded at the transmitter, according to symbols transmitted simultaneously, and for spreading a sequence of parallelized symbols in at least one of a frequency direction and a time direction by a spreading code sequence of a designated spreading factor.
摘要翻译： 无线传输系统被配置为在发射机和接收机之间的无线电传输的情况下，使用通过多个子载波并行发送相同信息的正交频率和码分复用传输方案来执行信息的无线电传输， 承运人 无线传输系统具有扩频因子可变控制发送装置，用于根据同时传输的符号并行转换在发射机处频道编码的信息，并且用于在频率方向和时间方向中的至少一个上扩展并行符号序列， 指定扩展因子的扩展码序列。
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2.发明授权Transmitter for multi-carrier transmission and multi-carrier transmitting method 有权发射机用于多载波传输和多载波传输方法公开(公告)号：US07864739B2
公开(公告)日：2011-01-04
申请号：US10437055
申请日：2003-05-14
CPC分类号： H04L5/0016 , H04L5/0048 , H04L5/006
摘要： The object of the present invention is to provide a transmitter for multi-carrier transmission for allocating pilot channels to radio frames, in consideration of interference with other pilot channels.The present invention relates to the transmitter for multi-carrier transmission configured to transmit a plurality of sub-carriers having at least one pilot symbol duration. The transmitter according to the present invention comprises a pilot symbol allocater configured to allocate a plurality of pilot symbol patterns which are orthogonal to each other, to the at least one pilot symbol durations in at least two sub-carriers.
摘要翻译： 本发明的目的是提供一种用于多载波传输的发射机，用于将导频信道分配给无线帧，考虑到与其它导频信道的干扰。 本发明涉及用于多载波传输的发射机，其被配置为发送具有至少一个导频符号持续时间的多个子载波。 根据本发明的发射机包括导频符号分配器，被配置为将彼此正交的多个导频符号模式分配给至少两个子载波中的至少一个导频符号持续时间。
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公开(公告)号：US07092431B2
公开(公告)日：2006-08-15
申请号：US10329421
申请日：2002-12-27
IPC分类号： H04L27/30
CPC分类号： H04B7/0842
摘要： A receiver, comprising a plurality of antennas configured to receive signals that are obtained by multiplying a plurality of data symbols transmitted over a plurality of data channels using spreading codes for each of the data channels, the data symbol being transmitted over a plurality of sub-carriers having different frequencies; a spreading code multiplier configured to multiply reception signals received by the plurality of antennas using spreading codes for the data channels corresponding to the reception signals; a weight controller configured to adjust antenna weights by which a reception signal received by each antenna is to be multiplied, and sub-carrier weights by which a reception signal received over each sub-carrier is to be multiplied; a weight multiplier configured to multiply the reception signals by the antenna weights and the sub-carrier weights adjusted by the weight controller; and a combining unit configured to combine the reception signals multiplied by the antenna weights and the sub-carrier weights at the weight multiplier among the antennas and over spreading code duration of the spreading codes.
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4.发明授权Multi-carrier CDMA transmission system, transmitting apparatus and receiving apparatus used in this system, and multi-carrier CDMA transmission method 失效本系统中使用的多载波CDMA传输系统，发射装置和接收装置，以及多载波CDMA传输方法公开(公告)号：US07236452B2
公开(公告)日：2007-06-26
申请号：US10229086
申请日：2002-08-28
IPC分类号： H04B7/216
CPC分类号： H04L5/0021 , H04B1/692 , H04L5/005 , H04L5/0051 , H04L5/0091 , H04L25/0228 , H04L27/2647 , H04L2025/03414
摘要： Received signals of the respective sub-carriers are multiplied by a weighting controlled for each sub-carrier, using a weighting control part 2-8 and multipliers 2-9, so that the mean square error between the signals following despreading and the signals that are actually transmitted is minimized. Afterward, MMSE combining is performed.
摘要翻译： 使用加权控制部分2-8和乘法器2-9将各个子载波的接收信号乘以对每个子载波控制的加权，使得解扩后的信号之间的均方误差和 实际传输最小化。 之后，进行MMSE组合。
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公开(公告)号：US07532864B2
公开(公告)日：2009-05-12
申请号：US10524213
申请日：2004-02-16
IPC分类号： H04B17/00
CPC分类号： H04B1/7097 , H04B17/345 , H04B2201/70701 , H04L1/20
摘要： A pilot extract section 14 extracts a pilot signal from received signal. An adder 21 in-phase adds a plurality of correlated values of pilot signals for respective subcarriers. Delay devices 201-1 to 201-6 temporarily maintain one in-phase added value. Multiplier 202-1 to 202-6 multiplies a predetermined coefficient to the in-phase added value that is output from the delay device. The predetermined coefficient reflects the result, which is obtained by correcting for multiple times the difference of channel variation in the different subcarriers that is generated when noise power per one subcarrier is calculated. Each of the multiplying results is added by an adder 24, and is squared by a square device 25. A cumulative adder 26 cumulative-adds the squared values for the whole subcarrier. A multiplier 203 averages by multiplying predetermined values to the cumulative-added values. Having such configuration, even if the correlation between adjacent subcarriers becomes lower by frequency selective fading, the accuracy for estimating noise power can be improved.
摘要翻译： 导频提取部分14从接收信号中提取导频信号。 同相的加法器21对各个副载波添加导频信号的多个相关值。 延迟装置201-1至201-6暂时保持一个同相的附加值。 乘法器202-1至202-6将预定系数与从延迟装置输出的同相相加值相乘。 预定系数反映通过多次计算在每个子载波的噪声功率被计算时产生的不同子载波中的信道变化的差异而获得的结果。 乘法结果中的每一个由加法器24相加，并由平方装置25平方。累积加法器26对整个子载波进行累加 - 相加。 乘法器203通过将预定值乘以累积附加值来平均。 具有这样的配置，即使相邻副载波之间的相关性通过频率选择性衰落变得较低，也可以提高估计噪声功率的精度。
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公开(公告)号：US20060154608A1
公开(公告)日：2006-07-13
申请号：US10524213
申请日：2004-02-16
IPC分类号： H04B17/00
CPC分类号： H04B1/7097 , H04B17/345 , H04B2201/70701 , H04L1/20
摘要： A pilot extract section 14 extracts a pilot signal from received signal. An adder 21 in-phase adds a plurality of correlated values of pilot signals for respective subcarriers. Delay devices 201-1 to 201-6 temporarily maintain one in-phase added value. Multiplier 202-1 to 202-6 multiplies a predetermined coefficient to the in-phase added value that is output from the delay device. The predetermined coefficient reflects the result, which is obtained by correcting for multiple times the difference of channel variation in the different subcarriers that is generated when noise power per one subcarrier is calculated. Each of the multiplying results is added by an adder 24, and is squared by a square device 25. A cumulative adder 26 cumulative-adds the squared values for the whole subcarrier. A multiplier 203 averages by multiplying predetermined values to the cumulative-added values. Having such configuration, even if the correlation between adjacent subcarriers becomes lower by frequency selective fading, the accuracy for estimating noise power can be improved.
摘要翻译： 导频提取部分14从接收信号中提取导频信号。 同相的加法器21对各个副载波添加导频信号的多个相关值。 延迟装置201-1至201-6暂时保持一个同相的附加值。 乘法器202-1至202-6将预定系数与从延迟装置输出的同相相加值相乘。 预定系数反映通过多次计算在每个子载波的噪声功率被计算时产生的不同子载波中的信道变化的差异而获得的结果。 乘法结果中的每一个由加法器24相加，并由平方装置25平方。 累积加法器26对整个子载波进行累加 - 相加。 乘法器203通过将预定值乘以累积附加值来平均。 具有这样的配置，即使相邻副载波之间的相关性通过频率选择性衰落变得较低，也可以提高估计噪声功率的精度。
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7.发明申请公开(公告)号：US20050100109A1
公开(公告)日：2005-05-12
申请号：US10986003
申请日：2004-11-12
CPC分类号： H04L5/026 , H04L27/2602 , H04L27/2662 , H04L27/2675 , H04L27/2678 , H04L27/2695
摘要： A signal reception device is disclosed that is capable of detecting symbol synchronization timing with high precision in accordance with a condition of a propagation path even in an environment involving multi-path interference. The signal reception device adopts an OFCDM transmission scheme or a multi-carrier transmission scheme. The signal reception device includes a received signal information calculation unit to calculate received signal information representing a signal reception condition of a received signal; an output combination unit to combine correlation values in a predetermined section obtained by correlation detection based on the received signal information; and a symbol timing detection unit to detect a symbol synchronization timing based on the combined value.
摘要翻译： 公开了一种信号接收装置，其能够即使在涉及多路径干扰的环境中也能够根据传播路径的条件高精度地检测符号同步定时。 信号接收装置采用OFCDM传输方式或多载波传输方案。 信号接收装置包括接收信号信息计算单元，用于计算表示接收信号的信号接收条件的接收信号信息; 输出组合单元，其基于所接收的信号信息来组合通过相关检测获得的预定部分中的相关值; 以及符号定时检测单元，用于基于所述组合值检测符号同步定时。
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8.发明授权公开(公告)号：US08290105B2
公开(公告)日：2012-10-16
申请号：US10986003
申请日：2004-11-12
CPC分类号： H04L5/026 , H04L27/2602 , H04L27/2662 , H04L27/2675 , H04L27/2678 , H04L27/2695
摘要： A signal reception device is disclosed that is capable of detecting symbol synchronization timing with high precision in accordance with a condition of a propagation path even in an environment involving multi-path interference. The signal reception device adopts an OFCDM transmission scheme or a multi-carrier transmission scheme. The signal reception device includes a received signal information calculation unit to calculate received signal information representing a signal reception condition of a received signal; an output combination unit to combine correlation values in a predetermined section obtained by correlation detection based on the received signal information; and a symbol timing detection unit to detect a symbol synchronization timing based on the combined value.
摘要翻译： 公开了一种信号接收装置，其能够即使在涉及多路径干扰的环境中也能够根据传播路径的条件高精度地检测符号同步定时。 信号接收装置采用OFCDM传输方式或多载波传输方案。 信号接收装置包括接收信号信息计算单元，用于计算表示接收信号的信号接收条件的接收信号信息; 输出组合单元，其基于所接收的信号信息来组合通过相关检测获得的预定部分中的相关值; 以及符号定时检测单元，用于基于所述组合值检测符号同步定时。
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9.发明授权Radio communication system, transmitter, receiver and radio communicating method 有权无线电通信系统，发射机，接收机和无线电通信方法公开(公告)号：US08315317B2
公开(公告)日：2012-11-20
申请号：US12391706
申请日：2009-02-24
CPC分类号： H04L1/0001 , H04B1/692 , H04L1/0025 , H04L1/0071 , H04L5/0016 , H04L5/006 , H04L25/0216 , H04L25/0222 , H04L27/0008 , H04L27/2602
摘要： A radio communication system having a radio transmitter and a radio receiver and adopting multiple carrier modulation and code spreading modulation methods is disclosed. The radio communication system comprises a selecting unit provided in the radio transmitter or the radio receiver, for selecting an interleaving mode out of plural interleaving modes depending on radio propagation path conditions; a symbol configuration unit provided in the radio transmitter; and a symbol reconfiguration unit provided in the radio receiver. The symbol configuration unit configures information symbols to be transmitted by the radio transmitter in both time and frequency directions in a pattern according to the interleaving mode selected by the selecting unit, and the symbol reconfiguration unit reconfigures information symbols received by the radio receiver in both time and frequency directions in an inverse pattern of the pattern.
摘要翻译： 公开了一种具有无线电发射机和无线电接收机并采用多载波调制和码扩展调制方法的无线电通信系统。 无线电通信系统包括：设置在无线电发射机或无线电接收机中的选择单元，用于根据无线电传播路径条件从多个交织模式中选择交织模式; 设置在无线发射机中的符号配置单元; 以及在无线电接收机中提供的符号重新配置单元。 符号配置单元根据由选择单元选择的交织模式，以时间和频率的方式在无线电发射机中配置要发送的信息符号，并且符号重新配置单元在时间上重新配置由无线电接收机接收的信息符号 和频率方向相反的图案。
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公开(公告)号：US20050185725A1
公开(公告)日：2005-08-25
申请号：US11041231
申请日：2005-01-25
CPC分类号： H04L27/2613 , H04L5/026 , H04L27/261
摘要： A transmitter (200) used in a wireless communication system based on an orthogonal frequency division multiplexing (OFDM) scheme includes a determination unit (216) configured to determine a spreading factor and an amplitude for a control channel based on at least one of signal quality information and interference information in data transmission, a multiplexing unit (212) configured to multiplex a data channel with the control channel having been code-spread based on the spreading factor and the amplitude, and means (214) configured to modulate the multiplexed signal in the OFDM scheme and transmit the modulated signal as OFDM symbols.
摘要翻译： 在基于正交频分复用（OFDM）方案的无线通信系统中使用的发射机（200）包括：确定单元（216），被配置为基于信号质量中的至少一个来确定控制信道的扩展因子和幅度 数据传输中的信息和干扰信息;多路复用单元，被配置为基于扩频因子和振幅，将数据信道与已经进行了码扩展的控制信道进行复用;以及装置， OFDM方案并将调制信号作为OFDM符号发送。
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