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31.发明申请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：US20050163193A1
公开(公告)日：2005-07-28
申请号：US11020192
申请日：2004-12-27
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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32.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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33.发明授权公开(公告)号：US07606196B2
公开(公告)日：2009-10-20
申请号：US10679488
申请日：2003-10-07
CPC分类号： H04L1/0071 , H04L1/0009 , H04L1/0041 , H04L1/0045 , H04L5/026 , H04L27/2608
摘要： The object of the present invention is to prevent continued reception of unreliable information symbols at the receiver apparatus 200 in the OFDM radio communication system, so that it is possible to improve transmission quality. The radio communication system according to the present invention comprises a transmitter apparatus 100 configured to estimate conditions of propagation paths used in the radio communication, arrange information symbols along the direction of the frequency axis in accordance with a predetermined pattern based on the estimated conditions of propagation paths, and transmit a radio communication signal including the arranged information symbols and a receiver apparatus 200 configured to receive the radio communication signal, and rearrange the information symbol included in the radio communication signal along the direction of the frequency axis in accordance with a reverse pattern to the predetermined pattern.
摘要翻译： 本发明的目的是防止在OFDM无线电通信系统中在接收机装置200处继续接收不可靠的信息符号，从而可以提高传输质量。 根据本发明的无线电通信系统包括发射机设备100，被配置为估计在无线电通信中使用的传播路径的条件，根据估计的传播条件，根据预定模式沿着频率轴的方向布置信息符号 并发送包括排列的信息符号的无线电通信信号和被配置为接收无线电通信信号的接收机装置200，并且根据反向模式沿着频率轴的方向重新排列包括在无线电通信信号中的信息符号 到预定图案。
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34.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：US07526011B2
公开(公告)日：2009-04-28
申请号：US11020192
申请日：2004-12-27
IPC分类号： H04B1/00
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：US07397839B2
公开(公告)日：2008-07-08
申请号：US11041231
申请日：2005-01-25
CPC分类号： H04L27/2613 , H04L5/026 , H04L27/261
摘要： A transmitter used in a wireless communication system based on an orthogonal frequency division multiplexing (OFDM) scheme includes a determination unit that determines 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. The transmitter also includes a multiplexing unit that multiplexes a data channel with the control channel having been code-spread based on the spreading factor and the amplitude. A modulator then modulates the multiplexed signal in the OFDM scheme for transmission as OFDM symbols.
摘要翻译： 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包括确定单元，其基于数据传输中的信号质量信息和干扰信息中的至少一个来确定控制信道的扩频因子和振幅 。 发射机还包括多路复用单元，其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。 然后，调制器在OFDM方案中对多路复用信号进行调制，以作为OFDM符号传输。
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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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37.发明申请WIRELESS BASE STATION, MOBILE STATION, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD 审中-公开无线基站，移动站，无线通信系统和无线通信方法公开(公告)号：US20090034486A1
公开(公告)日：2009-02-05
申请号：US12184532
申请日：2008-08-01
IPC分类号： H04B7/216
CPC分类号： H04L5/0053 , H04L5/0007 , H04L5/0042 , H04L5/0044
摘要： The wireless base station 10 includes a multiplexing units 13 generating user data; a channel assignment control unit 14 for selecting subcarrier groups from a plurality of subcarriers on two carriers, forming two wireless frames including subchannels generated from the subcarrier groups, and time-division multiplexes and sets the user data and control data to the two wireless frames; and a transmitting and receiving unit 16 transmitting a wireless signal including the wireless frames, wherein the channel assignment control unit 14 divides all of the subchannels in the two wireless frames into areas of destination sectors, stores the control data only in the corresponding area, and stores the user data in all of the areas in the two wireless frames.
摘要翻译： 无线基站10包括生成用户数据的复用单元13; 信道分配控制单元14，用于从两个载波上的多个子载波中选择副载波组，形成包括从子载波组产生的子信道的两个无线帧，并对用户数据和控制数据进行时分复用，并将其设置为两个无线帧; 以及发送和接收单元16，发送包括无线帧的无线信号，其中信道分配控制单元14将两个无线帧中的所有子信道划分成目的地扇区的区域，仅将控制数据存储在对应的区域中，以及 将用户数据存储在两个无线帧中的所有区域中。
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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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40.发明授权Wireless base station, mobile station, radio communication system, and radio communication method 有权无线基站，移动台，无线通信系统，无线通信方式公开(公告)号：US07961677B2
公开(公告)日：2011-06-14
申请号：US12062111
申请日：2008-04-03
CPC分类号： H04L5/0053 , H04L5/0007 , H04L5/0037 , H04L5/0048 , H04L5/0058
摘要： The object of the present invention is to achieve reduction of interference between cells and improvement of maximum throughput so as to improve spectrum efficiency. A wireless base station which transmits a radio signal between itself and a plurality of mobile stations by means of OFDMA includes: a multiplexing part for generating user data; a channel assignment control part for selecting a plurality sets of sub-carriers among a plurality of sub-carriers so as to constitute a radio frame containing sub-channels assigned to each of the plurality sets of sub-carriers and for setting in the radio frame the user data and control data by means of orthogonal frequency division multiplexing; and a transmission part for transmitting a radio signal containing the radio frame; where, the channel assignment control part is constituted so that the radio frame is divided into 2 zones for the control and user data and all the sub-channels in the zone for control data are divided into groups for each of sectors; the control data is allocated on the corresponding divided groups; and the user data is allocated on all the sub-channels in the zone for user data.
摘要翻译： 本发明的目的是实现小区之间的干扰减少和最大吞吐量的提高，从而提高频谱效率。 一种通过OFDMA在其自身与多个移动台之间发送无线电信号的无线基站包括：用于生成用户数据的复用部分; 信道分配控制部分，用于在多个子载波中选择多个子载波组，以构成包含分配给多个副载波中的每一个子载波的子信道的无线电帧，并用于在无线帧中进行设置 用户数据和控制数据通过正交频分复用; 以及发送部，用于发送包含无线帧的无线信号; 其中，信道分配控制部分被构成为使得无线电帧被划分为用于控制的用户数据和用户数据的2个区域，并且用于控制数据的区域中的所有子信道被划分为每个扇区的组; 控制数据分配在相应的分组上; 并且用户数据被分配在用于用户数据的区域中的所有子信道上。
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