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1.发明授权公开(公告)号：US08023599B2
公开(公告)日：2011-09-20
申请号：US12064421
申请日：2006-10-23
申请人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
发明人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
IPC分类号： H04B7/10
CPC分类号： H04B1/1027 , H04B1/7107 , H04B17/336 , H04L2025/03414 , H04L2025/03426
摘要： Interfering signals coming at random timings from different radio stations are identified. In order to attain this, a method for storing the characterizing quantity of an interfering signal included in a received signal includes calculating the characterizing quantity of the received signal, determining a probability that a desired signal is included in the received signal, determining that the received signal is an interfering signal when determining that there is no probability that the desired signal is included in the received signal, and storing the characterizing quantity of the received signal as an interfering signal characterizing quantity when it is determined at the received signal determination step that there is no probability that the desired signal is included in the received signal.
摘要翻译： 确定来自不同电台的随机定时信号的干扰信号。 为了实现这一点，包括在接收信号中的用于存储干扰信号的特征量的方法包括：计算接收信号的特征量，确定所需信号包含在接收信号中的概率，确定接收到的信号 信号是确定在接收信号中不存在所需信号的概率时的干扰信号，并且当在接收信号确定步骤确定接收信号确定步骤时将接收信号的特征量存储为干扰信号表征量 在所接收的信号中不包含所需信号的概率。
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公开(公告)号：US20100197262A1
公开(公告)日：2010-08-05
申请号：US12376387
申请日：2008-01-09
CPC分类号： H04B7/0865 , H04B17/345
摘要： The noise amount information storage unit 161 stores noise amount information which indicates relationships between gain value of the variable gain amplification units 121 and 125 and the amount of noise included in BB signals output from the down converters 131 and 135. The AGC unit 140 controls the gain value of the variable gain amplification units 121 and 125 so that the power of BB signals output from the down converters 131 and 135 becomes constant. The noise amount estimation unit 162 estimates noise amount of noise corresponding to the controlled gain value of the variable gain amplification units 121 and 125 by referring to the noise amount information stored in the noise amount information storage unit 161. The weight generation unit 170 generates weight matrix based on results of estimations performed by the channel characteristic estimation unit 150 and the noise estimation unit 162.
摘要翻译： 噪声量信息存储单元161存储指示可变增益放大单元121和125的增益值与从下变频器131和135输出的BB信号中包括的噪声量之间的关系的噪声量信息。AGC单元140控制 可变增益放大单元121和125的增益值，使得从下变频器131和135输出的BB信号的功率变得恒定。 噪声量估计单元162通过参考存储在噪声量信息存储单元161中的噪声量信息来估计与可变增益放大单元121和125的受控增益值相对应的噪声噪声量。权重生成单元170产生权重 基于由信道特性估计单元150和噪声估计单元162执行的估计结果的矩阵。
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3.发明申请公开(公告)号：US20090135972A1
公开(公告)日：2009-05-28
申请号：US12064421
申请日：2006-10-23
申请人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
发明人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
IPC分类号： H04B1/04
CPC分类号： H04B1/1027 , H04B1/7107 , H04B17/336 , H04L2025/03414 , H04L2025/03426
摘要： An object is to identify interfering signals coming at random timings from different radio stations. In order to attain this object, a method for storing the characterizing quantity of an interfering signal included in a received signal comprises a characterizing quantity calculation step of calculating the characterizing quantity of the received signal; a received signal determination step of determining a probability that a desired signal is included in the received signal, and determining that the received signal is an interfering signal when determining that there is no probability that the desired signal is included in the received signal; and an interfering signal characterizing quantity storage step of storing the characterizing quantity of the received signal as an interfering signal characterizing quantity when it is determined at the received signal determination step that there is no probability that the desired signal is included in the received signal.
摘要翻译： 目的是识别来自不同电台的随机定时的干扰信号。 为了达到这个目的，一种用于存储包含在接收信号中的干扰信号的特征量的方法包括：计算接收信号的特征量的特征量计算步骤; 接收信号确定步骤，确定在所接收的信号中包含期望信号的概率，并且当确定不存在在所接收的信号中包含期望信号的概率时，确定所接收的信号是干扰信号; 以及干扰信号特征量存储步骤，当在接收信号确定步骤确定在接收信号中不包括所需信号的可能性时，将接收信号的特征量存储为干扰信号特征量。
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4.发明申请公开(公告)号：US20090034647A1
公开(公告)日：2009-02-05
申请号：US12281388
申请日：2007-03-01
申请人： Naganori Shirakata , Shuya Hosokawa , Koji Imamura , Koichiro Tanaka , Kenji Miyanaga , Yoshio Urabe , Tsutomu Mukai
发明人： Naganori Shirakata , Shuya Hosokawa , Koji Imamura , Koichiro Tanaka , Kenji Miyanaga , Yoshio Urabe , Tsutomu Mukai
IPC分类号： H04B15/00
CPC分类号： H04L69/28 , H04L1/0007 , H04L1/16 , H04W16/14 , H04W72/12
摘要： At a time T131, a wireless communication apparatus 11A determines to transmit a data packet, and then performs interference signal detection for a period TA. At a time T132 preceding a time T133 at which the period TA has elapsed since the time T131, the wireless communication apparatus 11A detects a data packet d21 (an interference signal). At a time T134 at which a period TB has elapsed since the time T132 at which the interference signal has been detected, the wireless communication apparatus 11A starts transmitting a data packet d11 to a wireless communication apparatus 12A. At a time T136, the wireless communication apparatus 11A completes the transmission of the data packet d11.
摘要翻译： 在时间T131，无线通信设备11A确定发送数据分组，然后执行周期TA的干扰信号检测。 无线通信装置11A在从时刻T131开始经过了周期TA的时间T133之前的时刻T132，检测到数据分组d21（干扰信号）。 在从检测到干扰信号的时间T132开始经过了周期TB的时间T134之后，无线通信装置11A开始向无线通信装置12A发送数据包d11。 在时间T136，无线通信装置11A完成数据分组d11的发送。
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公开(公告)号：US20100008346A1
公开(公告)日：2010-01-14
申请号：US12376157
申请日：2008-02-01
CPC分类号： H04L25/0228 , H04L25/06 , H04L27/2647
摘要： An FFT unit (170) separates a received symbol by Fourier conversion into a plurality of subcarriers, and a phase difference detection unit (193) detects a phase difference between 4 pilot carriers and data carriers adjacent to the pilot carriers (adjacent carriers) The decision unit (194) decides whether the phase differences between the pilot carriers and the adjacent carriers detected by the phase difference detection unit (193) fulfill a phase difference condition. Then, the decision unit (194) decides that the received symbol is an HTSIG if the number of phase differences that fulfill the phase difference condition is greater than or equal to a predetermined number, and decides that the received symbol is either a SIG or a DATA if the number of phase differences that fulfill the phase difference condition is less than the predetermined number.
摘要翻译： FFT单元（170）通过傅里叶变换将接收到的符号分离成多个子载波，相位差检测单元（193）检测4个导频载波和与导频载波（相邻载波）相邻的数据载波之间的相位差。 单元（194）判定由相位差检测单元（193）检测的导频载波与相邻载波之间的相位差是否达到相位差条件。 然后，如果满足相位差条件的相位差的数量大于或等于预定数量，则判定单元（194）判定所接收的符号是HTSIG，并且确定接收的符号是SIG或 DATA，如果实现相位差条件的相位差数量小于预定数量。
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公开(公告)号：US08693592B2
公开(公告)日：2014-04-08
申请号：US12597571
申请日：2008-03-10
IPC分类号： H04L27/06
CPC分类号： H03G3/3052 , H03G3/3068
摘要： An AGC unit starts a gain control of the variable gain amplifying unit when a bit saturation occurs in the digital baseband signal output from the A/D converting unit, and starts a gain control of the variable gain amplifying unit when a detection of STS from the digital baseband signal output from the A/D converting unit is started. The AGC unit performs the gain control of the variable gain amplifying unit once when the detection of STS is started, and performs the gain control of the variable gain amplifying unit twice when the bit saturation occurs, namely a larger number of times than when the detection of STS is started.
摘要翻译： 当从A / D转换单元输出的数字基带信号中产生位饱和时，AGC单元开始可变增益放大单元的增益控制，并且当从该A / D转换单元检测到STS时开始可变增益放大单元的增益控制 开始从A / D转换单元输出的数字基带信号。 当STS的检测开始时，AGC单元执行可变增益放大单元的增益控制，并且当发生位饱和时，执行可变增益放大单元的增益控制两次，即比检测时更大的次数 的STS已经开始了。
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公开(公告)号：US07983311B2
公开(公告)日：2011-07-19
申请号：US12298375
申请日：2007-04-23
IPC分类号： H04J3/00
CPC分类号： H04W56/0085 , H04L7/042 , H04L25/0224 , H04L27/261 , H04L27/2662 , H04W28/06 , H04W56/00
摘要： A correlation unit (32) sequentially obtains correlation values between a baseband signal and a reference signal and outputs the obtained reference signal to a section division unit (33). The output of the correlation unit (32) is divided into symbol time periods by the section division unit (33). A section position detection unit (34) detects a largest correlation value in each of sections resulting from the division by the correlation unit (32) and outputs, to a synchronization judgment unit (35), first position information that indicates a relative position of each detected largest correlation value. The synchronization judgment unit (35) detects an arrival of a packet signal and estimates a symbol timing based on the first position information of the sections.
摘要翻译： 相关单元（32）顺序地获得基带信号和参考信号之间的相关值，并将获得的参考信号输出到区段划分单元（33）。 相关单元（32）的输出由区段划分单元（33）分成符号时间段。 区间位置检测单元（34）检测由相关单元（32）分割得到的每个区间中的最大相关值，并向同步判断单元（35）输出表示每个区域的相对位置的第一位置信息 检测到最大相关值。 同步判断单元（35）检测分组信号的到达，并基于各部分的第一位置信息来估计符号定时。
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公开(公告)号：US20090175299A1
公开(公告)日：2009-07-09
申请号：US12298375
申请日：2007-04-23
CPC分类号： H04W56/0085 , H04L7/042 , H04L25/0224 , H04L27/261 , H04L27/2662 , H04W28/06 , H04W56/00
摘要： A correlation unit (32) sequentially obtains correlation values between a baseband signal and a reference signal and outputs the obtained reference signal to a section division unit (33). The output of the correlation unit (32) is divided into symbol time periods by the section division unit (33). A section position detection unit (34) detects a largest correlation value in each of sections resulting from the division by the correlation unit (32) and outputs, to a synchronization judgment unit (35), first position information that indicates a relative position of each detected largest correlation value. The synchronization judgment unit (35) detects an arrival of a packet signal and estimates a symbol timing based on the first position information of the sections.
摘要翻译： 相关单元（32）顺序地获得基带信号和参考信号之间的相关值，并将获得的参考信号输出到区段划分单元（33）。 相关单元（32）的输出由区段划分单元（33）分成符号时间段。 区间位置检测单元（34）检测由相关单元（32）分割得到的每个区间中的最大相关值，并向同步判断单元（35）输出表示每个区域的相对位置的第一位置信息 检测到最大相关值。 同步判断单元（35）检测分组信号的到达，并基于各部分的第一位置信息来估计符号定时。
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公开(公告)号：US08179782B2
公开(公告)日：2012-05-15
申请号：US12376157
申请日：2008-02-01
IPC分类号： H04J11/00
CPC分类号： H04L25/0228 , H04L25/06 , H04L27/2647
摘要： An FFT unit (170) separates a received symbol by Fourier conversion into a plurality of subcarriers, and a phase difference detection unit (193) detects a phase difference between 4 pilot carriers and data carriers adjacent to the pilot carriers (adjacent carriers) The decision unit (194) decides whether the phase differences between the pilot carriers and the adjacent carriers detected by the phase difference detection unit (193) fulfill a phase difference condition. Then, the decision unit (194) decides that the received symbol is an HTSIG if the number of phase differences that fulfill the phase difference condition is greater than or equal to a predetermined number, and decides that the received symbol is either a SIG or a DATA if the number of phase differences that fulfill the phase difference condition is less than the predetermined number.
摘要翻译： FFT单元（170）通过傅里叶变换将接收到的符号分离成多个子载波，相位差检测单元（193）检测4个导频载波和与导频载波（相邻载波）相邻的数据载波之间的相位差。 单元（194）判定由相位差检测单元（193）检测的导频载波与相邻载波之间的相位差是否达到相位差条件。 然后，如果满足相位差条件的相位差的数量大于或等于预定数量，则判定单元（194）判定所接收的符号是HTSIG，并且确定接收的符号是SIG或 DATA，如果实现相位差条件的相位差数量小于预定数量。
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公开(公告)号：US20100128826A1
公开(公告)日：2010-05-27
申请号：US12597571
申请日：2008-03-10
IPC分类号： H04L27/08
CPC分类号： H03G3/3052 , H03G3/3068
摘要： An AGC unit 111 starts a gain control of the variable gain amplifying unit 102 when a bit saturation occurs in the digital baseband signal output from the A/D converting unit 104, and starts a gain control of the variable gain amplifying unit 102 when a detection of STS from the digital baseband signal output from the A/D converting unit 104 is started. The AGC unit 111 performs the gain control of the variable gain amplifying unit 102 once when the detection of STS is started, and performs the gain control of the variable gain amplifying unit 102 twice when the bit saturation occurs, namely a larger number of times than when the detection of STS is started.
摘要翻译： 当从A / D转换单元104输出的数字基带信号中产生位饱和时，AGC单元111启动可变增益放大单元102的增益控制，并且当检测到可变增益放大单元102时，开始可变增益放大单元102的增益控制 开始从A / D转换单元104输出的数字基带信号的STS。 AGC单元111在STS的检测开始时一次执行可变增益放大单元102的增益控制，并且当发生比特饱和时，可变增益放大单元102进行两次增益控制，即更大次数 当STS的检测开始时。
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