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51.发明申请公开(公告)号：US20080267262A1
公开(公告)日：2008-10-30
申请号：US11850837
申请日：2007-09-06
CPC分类号： H04B1/71055 , H04B1/7115 , H04B2201/709727
摘要： A symbol detector converts initial symbol estimates of received symbols to soft estimates for decoding. The symbol detector computes spreading waveform correlations between a spreading waveform for a symbol of interest and spreading waveforms for one or more interfering symbols. Interference rejection terms are computed by scaling the spreading waveform correlations by corresponding signal powers and compensating for noise. A soft scaling factor for the symbol of interest is computed from the interference rejection terms. The soft scaling factors are then applied to the initial symbol estimates to generate the soft estimates.
摘要翻译： 符号检测器将接收符号的初始符号估计转换为用于解码的软估计。 符号检测器计算感兴趣符号的扩展波形和一个或多个干扰符号的扩展波形之间的扩展波形相关性。 通过相应的信号功率缩放扩展波形相关性并补偿噪声来计算干扰抑制项。 根据干扰抑制项计算感兴趣符号的软缩放因子。 然后将软缩放因子应用于初始符号估计以产生软估计。
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52.发明申请Method and Apparatus for Selecting Signal Processing Delays Based on Historical Selection Data 有权基于历史选择数据选择信号处理延迟的方法和装置公开(公告)号：US20080130797A1
公开(公告)日：2008-06-05
申请号：US11566256
申请日：2006-12-04
IPC分类号： H04L27/06
CPC分类号： H04B1/7113 , H04B1/7117 , H04B1/712 , H04B2201/709727
摘要： Signal processing delays are selected from a candidate set in a wireless receiver based on both present and past channel behavior. According to one embodiment, a subset of signal processing delays are selected for received signal processing by accumulating a history of periodic delay selection computations for a candidate set of signal processing delays during a time interval. The delay selection calculations are based on cross-correlations between different ones of the signal processing delays. At the end of the time interval, a subset of the signal processing delays are selected from the candidate set of delays for received signal processing based on the history of delay selection computations.
摘要翻译： 基于现在和过去的信道行为，从无线接收机中的候选集中选择信号处理延迟。 根据一个实施例，通过在时间间隔期间累积用于信号处理延迟的候选组的周期性延迟选择计算的历史来选择信号处理延迟的子集用于接收信号处理。 延迟选择计算基于不同信号处理延迟之间的互相关。 在时间间隔结束时，基于延迟选择计算的历史，从用于接收信号处理的候选延迟集中选择信号处理延迟的子集。
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53.发明授权System and methods for selecting an appropriate detection technique in a radiocommunication system 失效在无线电通信系统中选择合适的检测技术的系统和方法公开(公告)号：US06333953B1
公开(公告)日：2001-12-25
申请号：US08897309
申请日：1997-07-21
IPC分类号： H03K900
CPC分类号： H04L25/03006 , H04L25/02
摘要： Techniques for adapting detection schemes used in receivers for receiving radio signals are described. The received signal is processed to determine, for example, an amount of time dispersion present in the radio channel. Based on this determination an appropriate detection scheme is selected for detecting the transmitted symbols. Various techniques for determining the dispersive or non-dispersive nature of the channel are described.
摘要翻译： 描述用于适应用于接收无线电信号的接收机中使用的检测方案的技术。 处理接收到的信号以确定例如存在于无线电信道中的时间色散量。 基于该确定，选择适当的检测方案来检测所发送的符号。 描述了用于确定通道的分散性或非分散性的各种技术。
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公开(公告)号：US09226249B2
公开(公告)日：2015-12-29
申请号：US12513972
申请日：2006-11-07
CPC分类号： H04W52/60 , H04B1/712 , H04B2201/709727 , H04W52/241
摘要： The present invention relates to a receiver comprising a fast power control unit, said fast power control unit being arranged to continuously control a quality measure of a radio channel. The receiver is characterized in that the quality measure is a modified Signal to Interference plus noise ratio (SIR) in which the influence from self interference has been removed. The invention further relates to a method for continuously controlling a quality measure of a radio channel, wherein a modified Signal to Interference plus noise ratio (SIR) is continuously determined in which the influence from self interference has been removed.
摘要翻译： 本发明涉及包括快速功率控制单元的接收机，所述快速功率控制单元被布置成连续地控制无线电信道的质量测量。 接收机的特征在于，质量测量是修改的信号与干扰加噪声比（SIR），其中已经去除了自身干扰的影响。 本发明还涉及一种用于连续地控制无线电信道的质量测量的方法，其中连续地确定修改的信号与干扰加噪声比（SIR），其中已经去除了自身干扰的影响。
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公开(公告)号：US08712464B2
公开(公告)日：2014-04-29
申请号：US13008523
申请日：2011-01-18
IPC分类号： H04B7/00
CPC分类号： H04W52/56 , H04B17/336 , H04B2201/709727 , H04W52/12
摘要： A wireless communication device or system generates transmit power control feedback for a received power control channel by determining a command error rate (CER), or by identifying a target signal quality for the power control channel according to a defined signal-quality-to-CER mapping function. Generally, the power control channel does not include error-coded data to use for CER estimation. However, in one embodiment, the channel does include known reference bits that are evaluated for CER estimation, with the estimated CER used to set the signal quality target for inner loop power control. In other embodiments, a computed reception error probability is used to identify a CER estimate according to a defined probability-to-CER mapping function. By way of non-limiting example, these embodiments may be used to provide power control feedback for power control commands transmitted on a Fractional Dedicated Physical Channel in WCDMA systems.
摘要翻译： 无线通信设备或系统通过确定命令错误率（CER）或者通过根据定义的信号质量到CER来识别功率控制信道的目标信号质量来为接收到的功率控制信道生成发射功率控制反馈 映射功能。 通常，功率控制信道不包括用于CER估计的错误编码数据。 然而，在一个实施例中，信道确实包括对CER估计进行评估的已知参考比特，其中估计的CER用于设置用于内环功率控制的信号质量目标。 在其他实施例中，使用计算的接收错误概率来根据所定义的概率到CER映射函数来识别CER估计。 作为非限制性示例，这些实施例可以用于为在WCDMA系统中的分数专用物理信道上发送的功率控制命令提供功率控制反馈。
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56.发明授权Method and apparatus for detecting a plurality of symbol blocks using a decoder 有权用于使用解码器检测多个符号块的方法和装置公开(公告)号：US08605829B2
公开(公告)日：2013-12-10
申请号：US12729414
申请日：2010-03-23
CPC分类号： H04L25/03286 , H04B2201/709727 , H04L1/0047 , H04L25/03178 , H04L25/03229 , H04L25/03331 , H04L2025/03426
摘要： Teachings presented herein offer improved symbol block detection by including a decoder unit in a demodulation system. Utilizing a decoder unit in a demodulation system can significantly enhance symbol block detection because the decoder can produce bit likelihood values (soft bit values), and these bit likelihood values can be used to construct a set of candidate symbol values. Advantageously, this set of candidate symbol values is more likely to contain the actually transmitted symbol(s) than if the decoder unit was not used in the demodulation system.
摘要翻译： 本文提出的教学通过在解调系统中包括解码器单元来提供改进的符号块检测。 在解调系统中使用解码器单元可以显着增强符号块检测，因为解码器可以产生位似然值（软比特值），并且这些比特似然值可以用于构建一组候选符号值。 有利地，与在解调系统中不使用解码器单元相比，这组候选符号值更可能包含实际发送的符号。
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57.发明授权公开(公告)号：US08295329B2
公开(公告)日：2012-10-23
申请号：US11850837
申请日：2007-09-06
IPC分类号： H04B1/00
CPC分类号： H04B1/71055 , H04B1/7115 , H04B2201/709727
摘要： A symbol detector converts initial symbol estimates of received symbols to soft estimates for decoding. The symbol detector computes spreading waveform correlations between a spreading waveform for a symbol of interest and spreading waveforms for one or more interfering symbols. Interference rejection terms are computed by scaling the spreading waveform correlations by corresponding signal powers and compensating for noise. A soft scaling factor for the symbol of interest is computed from the interference rejection terms. The soft scaling factors are then applied to the initial symbol estimates to generate the soft estimates.
摘要翻译： 符号检测器将接收符号的初始符号估计转换为用于解码的软估计。 符号检测器计算感兴趣符号的扩展波形和一个或多个干扰符号的扩展波形之间的扩展波形相关性。 通过相应的信号功率缩放扩展波形相关性并补偿噪声来计算干扰抑制项。 根据干扰抑制项计算感兴趣符号的软缩放因子。 然后将软缩放因子应用于初始符号估计以产生软估计。
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公开(公告)号：US08102950B2
公开(公告)日：2012-01-24
申请号：US12058082
申请日：2008-03-28
IPC分类号： H04L27/06
CPC分类号： H04J13/00 , H04B1/7105 , H04J13/102 , H04L25/03057 , H04L25/067 , H04L2025/0342
摘要： Where two or more multi-valued digital data symbols are modulated so that they overlap after passing through a channel, forming a combined signal, a receiver receives the combined signal and forms detection statistics to attempt to recover the symbols. Where forming detection statistics does not completely separate the symbols, each statistic comprises a different mix of the symbols. A receiver determines the symbols which, when mixed in the same way, reproduce or explain the statistics most closely. For example, the receiver hypothesizes all but one of the symbols and subtracts the effect of the hypothesized symbols from the mixed statistics. The remainders are combined and quantized to the nearest value of the remaining symbol. For each hypothesis, the remaining symbol is determined. A metric is then computed for each symbol hypothesis including the so-determined remaining symbol, and the symbol set producing the best metric is chosen as the decoded symbols.
摘要翻译： 当调制两个或更多个多值数字数据符号以使得它们在通过信道之后重叠时，形成组合信号，接收器接收组合信号并形成检测统计信息以尝试恢复符号。 在形成检测统计信息不完全分离符号的情况下，每个统计量包括符号的不同混合。 接收者确定在以相同的方式混合时，最接近地重现或解释统计信息的符号。 例如，接收方假设除符号之外的所有符号，并从混合统计中减去假设符号的影响。 余数被组合并量化为剩余符号的最接近的值。 对于每个假设，确定剩余符号。 然后针对包括所确定的剩余符号的每个符号假设计算度量，并且选择产生最佳度量的符号集作为解码符号。
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公开(公告)号：US08046657B2
公开(公告)日：2011-10-25
申请号：US11451724
申请日：2006-06-13
IPC分类号： H03M13/45
CPC分类号： H03M13/05 , H03M13/11 , H03M13/255
摘要： According to a method and apparatus taught herein, a decoding circuit and method decode linear block codes based on determining joint probabilities for one or more related subsets of bits in received data blocks. The use of joint probabilities enables faster and more reliable determination of received bits, meaning that, for example, joint probability decoding requires fewer decoding iterations than a comparable decoding process based on single-bit probabilities. As a non-limiting example, the decoding circuit and method taught herein provide advantageous operation with Low Density Parity Check (LDPC) codes, and can be incorporated in a variety of communication systems and devices, such as those associated with wireless communication networks.
摘要翻译： 根据本文教导的方法和装置，解码电路和方法基于确定接收数据块中一个或多个相关的比特子集的联合概率来解码线性块码。 联合概率的使用使得能够更快更可靠地确定接收到的比特，这意味着例如，联合概率解码比基于单比特概率的可比较的解码过程需要更少的解码迭代。 作为非限制性示例，本文教导的解码电路和方法提供了具有低密度奇偶校验（LDPC）码的有利操作，并且可以并入各种通信系统和设备中，诸如与无线通信网络相关联的通信系统和设备。
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60.发明申请METHOD AND APPARATUS FOR DETECTING A PLURALITY OF SYMBOL BLOCKS USING A DECODER 有权用于使用解码器检测多个符号块的方法和装置公开(公告)号：US20110129043A1
公开(公告)日：2011-06-02
申请号：US12729414
申请日：2010-03-23
IPC分类号： H04L27/06
CPC分类号： H04L25/03286 , H04B2201/709727 , H04L1/0047 , H04L25/03178 , H04L25/03229 , H04L25/03331 , H04L2025/03426
摘要： Teachings presented herein offer improved symbol block detection by including a decoder unit in a demodulation system. Utilizing a decoder unit in a demodulation system can significantly enhance symbol block detection because the decoder can produce bit likelihood values (soft bit values), and these bit likelihood values can be used to construct a set of candidate symbol values. Advantageously, this set of candidate symbol values is more likely to contain the actually transmitted symbol(s) than if the decoder unit was not used in the demodulation system.
摘要翻译： 本文提出的教学通过在解调系统中包括解码器单元来提供改进的符号块检测。 在解调系统中使用解码器单元可以显着增强符号块检测，因为解码器可以产生位似然值（软比特值），并且这些比特似然值可以用于构建一组候选符号值。 有利地，与在解调系统中不使用解码器单元相比，这组候选符号值更可能包含实际发送的符号。
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