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1.发明申请Method and apparatus for decoding of turbo encoded data in a communication system 有权用于在通信系统中解码turbo编码数据的方法和装置公开(公告)号：US20050289429A1
公开(公告)日：2005-12-29
申请号：US10915134
申请日：2004-08-10
申请人： Gregory Bottomley , Rajaram Ramesh , Jung-Fu Cheng
发明人： Gregory Bottomley , Rajaram Ramesh , Jung-Fu Cheng
CPC分类号： H04L1/005 , H03M13/2957 , H03M13/2975 , H04L1/0066
摘要： A method and apparatus for decoding turbo encoded data. A first turbo decoding iteration is performed to produce a most likely sequence of symbols, each symbol having an amplitude value and a positive or negative sign. The sequence of symbols is error checked, and if an error is detected, the apparatus forms a next most likely sequence by reversing the positive or negative sign of the symbol having the smallest amplitude. If an error is again detected, additional sign reversals are performed on symbols with larger amplitudes, and on multiple symbols. Each modification is error checked. If none of the modifications produce an error-free sequence, and a maximum number of modifications are performed, the apparatus performs another turbo decoding iteration to produce another sequence of symbols. The process is then repeated until an error-free sequence is produced or a maximum number of iterations are performed.
摘要翻译： 用于对turbo编码数据进行解码的方法和装置。 执行第一turbo解码迭代以产生最可能的符号序列，每个符号具有振幅值和正号或负号。 符号序列被错误检查，并且如果检测到错误，则该装置通过反转具有最小幅度的符号的正号或负号来形成下一个最可能的序列。 如果再次检测到错误，则对具有较大幅度的符号和多个符号执行附加符号反转。 每个修改都被错误检查。 如果没有一个修改产生无错的序列，并且执行最大数目的修改，则该装置执行另一个turbo解码迭代以产生另一个符号序列。 然后重复该过程，直到产生无错序列或执行最大次数。
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公开(公告)号：US20080063045A1
公开(公告)日：2008-03-13
申请号：US11936193
申请日：2007-11-07
申请人： Carmela Cozzo , Gregory Bottomley , Rajaram Ramesh
发明人： Carmela Cozzo , Gregory Bottomley , Rajaram Ramesh
CPC分类号： H04B1/712 , H04B1/7117 , H04B2201/709727
摘要： A receiver is described herein that is capable of receiving and processing a radio signal and further capable of using interpolation to initialize receiver parameters when there is a change in at least one delay associated with the received radio signal or when there is at least one new correlator position. For instance, the receiver parameters that can be initialized include: (1) channel coefficients; (2) AFC parameters; (3) tracking parameters; (4) noise statistics (noise correlations); (5) signal statistics (channel coefficient correlations); (6) data statistics (despread values or chip samples); or (7) combining weights.
摘要翻译： 本文描述了一种接收机，其能够接收和处理无线电信号，并且还能够在存在与所接收的无线电信号相关联的至少一个延迟中的变化时或者当存在至少一个新的相关器时使用内插来初始化接收机参数 位置。 例如，可以初始化的接收机参数包括：（1）信道系数; （2）AFC参数; （3）跟踪参数; （4）噪声统计（噪声相关）; （5）信号统计（信道系数相关）; （6）数据统计（去扩展值或芯片样本）; 或（7）组合权重。
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公开(公告)号：US20060067383A1
公开(公告)日：2006-03-30
申请号：US10953010
申请日：2004-09-29
申请人： Carmela Cozzo , Gregory Bottomley , Rajaram Ramesh
发明人： Carmela Cozzo , Gregory Bottomley , Rajaram Ramesh
CPC分类号： H04B1/712 , H04B1/7117 , H04B2201/709727
摘要： A receiver is described herein that is capable of receiving and processing a radio signal and further capable of using interpolation to initialize receiver parameters when there is a change in at least one delay associated with the received radio signal or when there is at least one new correlator position. For instance, the receiver parameters that can be initialized include: (1) channel coefficients; (2) AFC parameters; (3) tracking parameters; (4) noise statistics (noise correlations); (5) signal statistics (channel coefficient correlations); (6) data statistics (despread values or chip samples); or (7) combining weights.
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4.发明授权Impairment covariance and combining weight updates during iterative turbo interference cancellation reception 有权减弱协方差，并在迭代涡轮干扰消除接收期间组合权重更新公开(公告)号：US08761323B2
公开(公告)日：2014-06-24
申请号：US13333478
申请日：2011-12-21
申请人： Yi-Pin Eric Wang , Gregory Bottomley , Jung-Fu Cheng , Stephen Grant , Ning He , Niklas Johansson , Cagatay Konuskan
发明人： Yi-Pin Eric Wang , Gregory Bottomley , Jung-Fu Cheng , Stephen Grant , Ning He , Niklas Johansson , Cagatay Konuskan
IPC分类号： H04B1/10
CPC分类号： H04W72/1278 , H04B1/71075 , H04B1/712 , H04W72/082
摘要： In a receive node of a wireless network, an iterative multi-user multi-stage interference cancellation receiver is used. After each stage of interference cancellation, interference characteristics change. An adaptive strategy is used in which after each stage of interference cancellation, impairment covariance is parametrically updated and combining weights of the receiver are adapted to reflect the updated impairment covariance.
摘要翻译： 在无线网络的接收节点中，使用迭代多用户多级干扰消除接收机。 在干扰消除的每个阶段之后，干扰特性发生变化。 使用自适应策略，其中在干扰消除的每个阶段之后，对损伤协方差进行参数更新，并且接收机的组合权重被适配以反映更新的损害协方差。
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公开(公告)号：US07558533B2
公开(公告)日：2009-07-07
申请号：US11936193
申请日：2007-11-07
申请人： Carmela Cozzo , Gregory Bottomley , Rajaram Ramesh
发明人： Carmela Cozzo , Gregory Bottomley , Rajaram Ramesh
IPC分类号： H04B15/00
CPC分类号： H04B1/712 , H04B1/7117 , H04B2201/709727
摘要： A receiver is described herein that is capable of receiving and processing a radio signal and further capable of using interpolation to initialize receiver parameters when there is a change in at least one delay associated with the received radio signal or when there is at least one new correlator position. For instance, the receiver parameters that can be initialized include: (1) channel coefficients; (2) AFC parameters; (3) tracking parameters; (4) noise statistics (noise correlations); (5) signal statistics (channel coefficient correlations); (6) data statistics (despread values or chip samples); or (7) combining weights.
摘要翻译： 本文描述了一种接收机，其能够接收和处理无线电信号，并且还能够在存在与所接收的无线电信号相关联的至少一个延迟中的变化时或者当存在至少一个新的相关器时使用内插来初始化接收机参数 位置。 例如，可以初始化的接收机参数包括：（1）信道系数; （2）AFC参数; （3）跟踪参数; （4）噪声统计（噪声相关）; （5）信号统计（信道系数相关）; （6）数据统计（去扩展值或芯片样本）; 或（7）组合权重。
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公开(公告)号：US20050282500A1
公开(公告)日：2005-12-22
申请号：US10869527
申请日：2004-06-16
申请人： Yi-Pin Wang , Gregory Bottomley , Rajaram Ramesh
发明人： Yi-Pin Wang , Gregory Bottomley , Rajaram Ramesh
CPC分类号： H04L1/20 , H04B2201/709727 , H04L1/0003 , H04L1/0026 , H04L1/206
摘要： A receiver circuit suppresses effects of “benign” impairment from the calculation of received signal quality estimates, such that the estimate depends primarily on the effects of non-benign impairment. For example, a received signal may be subject to same-cell and other-cell interference plus noise, which is generally modeled using a Gaussian distribution, and also may be due to certain forms of self-interference, such as quadrature phase interference arising from imperfect derotation of the pilot samples used to generate channel estimates for the received signal. Such interference generally takes on a distribution defined by the pilot signal modulation, e.g., a binomial distribution for binary phase shift keying modulation. Interference arising from such sources is relatively “benign” as compared to Gaussian interference and thus should be suppressed or otherwise discounted in signal quality calculations. Suppression may be based on subtracting benign impairment correlation estimates from total impairment correlation estimates, or on filtering the benign impairment in channel estimation.
摘要翻译： 接收机电路抑制从接收到的信号质量估计的计算中的“良性”损伤的影响，使得估计主要取决于非良性损伤的影响。 例如，接收到的信号可以经受相同小区和其他小区干扰加噪声，其通常使用高斯分布来建模，并且还可能是由于某些形式的自干扰，例如由 用于产生接收信号的信道估计的导频样本的不完全解旋。 这种干扰通常采用由导频信号调制定义的分布，例如二进制相移键控调制的二项分布。 与高斯干扰相比，从这些源产生的干扰相对“良性”，因此在信号质量计算中应被抑制或以其他方式折扣。 抑制可以基于从总损伤相关性估计中减去良性损伤相关估计，或者在滤波信道估计中的良性损伤。
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7.发明申请公开(公告)号：US20130077670A1
公开(公告)日：2013-03-28
申请号：US13333478
申请日：2011-12-21
申请人： Yi-Pin Eric Wang , Cagatay Konuskan , Gregory Bottomley , Jung-Fu Cheng , Niklas Johansson , Ning He , Stephen Grant
发明人： Yi-Pin Eric Wang , Cagatay Konuskan , Gregory Bottomley , Jung-Fu Cheng , Niklas Johansson , Ning He , Stephen Grant
CPC分类号： H04W72/1278 , H04B1/71075 , H04B1/712 , H04W72/082
摘要： In a receive node of a wireless network, an iterative multi-user multi-stage interference cancellation receiver is used. After each stage of interference cancellation, interference characteristics change. An adaptive strategy is used in which after each stage of interference cancellation, impairment covariance is parametrically updated and combining weights of the receiver are adapted to reflect the updated impairment covariance.
摘要翻译： 在无线网络的接收节点中，使用迭代多用户多级干扰消除接收机。 在干扰消除的每个阶段之后，干扰特性发生变化。 使用自适应策略，其中在干扰消除的每个阶段之后，对损伤协方差进行参数更新，并且接收机的组合权重被适配以反映更新的损害协方差。
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公开(公告)号：US20070147481A1
公开(公告)日：2007-06-28
申请号：US11314740
申请日：2005-12-22
申请人： Gregory Bottomley , Jung-Fu Cheng
发明人： Gregory Bottomley , Jung-Fu Cheng
CPC分类号： H03M13/2957 , H03M13/6331 , H04B1/712 , H04B2201/709727 , H04L1/0048 , H04L1/005 , H04L25/03063
摘要： A linear turbo-equalizer for use in a CDMA receiver equalizes a despread received signal (rather than the spread received signal) to suppress self-interference resulting from coupling between transmitted symbols. In an example implementation, a linear equalizer based on a generalized-Rake (G-Rake) receiver design uses decoder feedback in forming Rake combining weights as well as in forming a self-interference estimate removed from the equalizer signal provided to the decoder. Preferably, turbo de-coding is also performed. In that case, each turbo-decoder component preferably executes one pass before feeding back information to the equalizer. This ensures that the turbo-decoder does not prematurely lock onto an incorrect code word before feeding back extrinsic information to the equalizer.
摘要翻译： 用于CDMA接收机的线性turbo均衡器使解扩展的接收信号（而不是扩展接收信号）均衡，以抑制由传输符号之间的耦合产生的自干扰。 在示例实现中，基于广义Rake（G-Rake）接收机设计的线性均衡器在形成Rake组合权重时使用解码器反馈，以及形成从提供给解码器的均衡器信号中去除的自干扰估计。 优选地，还执行turbo解码。 在这种情况下，每个turbo解码器组件优选地在将信息反馈给均衡器之前执行一次通过。 这确保了在将外部信息反馈给均衡器之前，turbo解码器不会过早地锁定到不正确的代码字。
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公开(公告)号：US07724813B2
公开(公告)日：2010-05-25
申请号：US11321709
申请日：2005-12-29
CPC分类号： H04W52/286 , H04B2201/709727 , H04W52/16 , H04W52/325
摘要： According to method and apparatus embodiments taught herein, power control feedback is generated for a control channel signal that is received in conjunction with a reference channel signal based on the reference channel's signal strength or quality, and an estimate of a gain factor relating the control and reference channel signals. By way of non-limiting example set in a Wideband CDMA (WCDMA) context, the reference channel signal comprises a Common Pilot Channel (CPICH) signal and the control channel signal comprises a Fractional Dedicated Physical Channel (F-DPCH) signal that is transmitted at an (unknown) power gain relative to the CPICH signal.
摘要翻译： 根据本文教导的方法和装置实施例，为基于参考信道的信号强度或质量而结合参考信道信号接收的控制信道信号生成功率控制反馈，以及与控制和 参考通道信号。 通过在宽带CDMA（WCDMA）上下文中设置的非限制性示例，参考信道信号包括公共导频信道（CPICH）信号，并且控制信道信号包括传输的分数专用物理信道（F-DPCH）信号 以相对于CPICH信号的（未知）功率增益。
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10.发明申请公开(公告)号：US20060291543A1
公开(公告)日：2006-12-28
申请号：US11158665
申请日：2005-06-22
申请人： Tracy Fulghum , Gregory Bottomley
发明人： Tracy Fulghum , Gregory Bottomley
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B2201/709727
摘要： A wireless communication receiver obtains improved performance under certain fast fading conditions by basing one or more received signal processing operations on pre-despreading chip sample correlations rather than on post-despreading noise correlations, but preserves soft scaling information by determining one or more scaling factors that relate the chip sample correlations to the noise correlations. By way of non-limiting examples, a Generalized RAKE receiver circuit may base combining weight generation on chip sample correlations rather than on post-despreading pilot symbol noise correlations, but scale the combining weights as a function of the one or more scaling factors, or, equivalently, scale the combined values generated from the combining weights. Similar scaling may be performed with respect to chip equalization filter combining weights in a chip equalization receiver circuit. Further, Signal-to-Interference Ratio (SIR) estimation may be improved in terms of fast fading responsiveness by using chip sample correlations, while preserving the proper scaling.
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