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公开(公告)号：US20160099816A1
公开(公告)日：2016-04-07
申请号：US14845551
申请日：2015-09-04
发明人： Paul Dean Alexander , Paul Kingsley Gray , David Victor Lawrie Haley , John Lawrence Buetefuer , Alexander James Grant , Phuc Ngoc Pham , Joshua Charles Sutton , Martin Suter
CPC分类号： H04L25/0202 , H04L1/0045 , H04L1/0047 , H04L1/0048 , H04L1/0054 , H04L1/0059 , H04L25/0204 , H04L25/022 , H04L25/0224 , H04L25/03318 , H04L27/2647
摘要： Methods and apparatus are described for improving receiver performance in a multicarrier communication network in which an encoded symbol is transmitted over a transmission channel in the communications system. A model of the transmission channel is estimated, said model characterising an effect of intercarrier interference on at least one carrier in the multicarrier system. The received symbol is decoded using the estimated model to remove a predicted effect of intercarrier interference. A pre-processor is also described for operation in conjunction with a communications receiver in the network. The pre-processor includes a channel estimator operable to estimate at least one feature of the communication channel based on a received signal. The pre-processor modifies the received signal dependent on the at least one estimated feature and provides the modified signal to the communications receiver.
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公开(公告)号：US20140349601A1
公开(公告)日：2014-11-27
申请号：US14453516
申请日：2014-08-06
CPC分类号： H04L25/022 , H04B1/10 , H04B1/16 , H04L25/0224 , H04L25/03159 , H04L27/2647
摘要： Methods and apparatus are described for processing data in a wireless communication network. Iterative estimation techniques are used to enable tracking of time-varying communication channels. A signal is transmitted over a channel in the network, the signal comprising a sequence of symbols carried on a plurality of sub-carriers. Boot-up estimator estimates, in a time domain, parameters of a model of the channel based on the received signal. A domain converter transforms at least one of the estimated parameters from the time domain to provide at least one transformed parameter in a second domain. An equalizer and decoder determine estimates of symbols from the received signal using the at least one transformed parameter, and tracking estimator updates the estimated model parameters during reception of the signal using at least one estimated symbol.
摘要翻译： 描述了用于在无线通信网络中处理数据的方法和装置。 使用迭代估计技术来跟踪时变通信信道。 信号通过网络中的信道发送，该信号包括在多个子载波上承载的码元序列。 引导估计器在时域中估计基于接收信号的信道模型的参数。 域转换器从时域转换估计参数中的至少一个，以在第二域中提供至少一个变换参数。 均衡器和解码器使用至少一个变换参数确定来自接收信号的符号的估计，并且跟踪估计器使用至少一个估计符号在接收信号期间更新估计的模型参数。
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公开(公告)号：US09049063B2
公开(公告)日：2015-06-02
申请号：US14453516
申请日：2014-08-06
CPC分类号： H04L25/022 , H04B1/10 , H04B1/16 , H04L25/0224 , H04L25/03159 , H04L27/2647
摘要： Methods and apparatus are described for processing data in a wireless communication network. Iterative estimation techniques are used to enable tracking of time-varying communication channels. A signal is transmitted over a channel in the network, the signal comprising a sequence of symbols carried on a plurality of sub-carriers. Boot-up estimator estimates, in a time domain, parameters of a model of the channel based on the received signal. A domain converter transforms at least one of the estimated parameters from the time domain to provide at least one transformed parameter in a second domain. An equalizer and decoder determine estimates of symbols from the received signal using the at least one transformed parameter, and tracking estimator updates the estimated model parameters during reception of the signal using at least one estimated symbol.
摘要翻译： 描述了用于在无线通信网络中处理数据的方法和装置。 使用迭代估计技术来跟踪时变通信信道。 信号通过网络中的信道发送，该信号包括在多个子载波上承载的码元序列。 引导估计器在时域中估计基于接收信号的信道模型的参数。 域转换器从时域转换估计参数中的至少一个，以在第二域中提供至少一个变换参数。 均衡器和解码器使用至少一个变换参数确定来自接收信号的符号的估计，并且跟踪估计器使用至少一个估计符号在接收信号期间更新估计的模型参数。
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公开(公告)号：US20150103959A1
公开(公告)日：2015-04-16
申请号：US14573330
申请日：2014-12-17
发明人： Paul Dean Alexander , Paul Kingsley Gray , David Victor Lawrie Haley , John Lawrence Buetefuer , Alexander James Grant , Phuc Ngoc Pham , Joshua Charles Sutton , Martin Suter
CPC分类号： H04L25/0202 , H04L1/0045 , H04L1/0047 , H04L1/0048 , H04L1/0054 , H04L1/0059 , H04L25/0204 , H04L25/022 , H04L25/0224 , H04L25/03318 , H04L27/2647
摘要： Methods and apparatus are described for improving receiver performance in a multicarrier communication network in which an encoded symbol is transmitted over a transmission channel in the communications system. A model of the transmission channel is estimated, said model characterising an effect of intercarrier interference on at least one carrier in the multicarrier system. The received symbol is decoded using the estimated model to remove a predicted effect of intercarrier interference. A pre-processor is also described for operation in conjunction with a communications receiver in the network. The pre-processor includes a channel estimator operable to estimate at least one feature of the communication channel based on a received signal. The pre-processor modifies the received signal dependent on the at least one estimated feature and provides the modified signal to the communications receiver.
摘要翻译： 描述了用于改善在通信系统中通过传输信道发送编码符号的多载波通信网络中的接收机性能的方法和装置。 估计传输信道的模型，所述模型表征多载波系统中至少一个载波的载波间干扰的影响。 使用估计模型对接收到的符号进行解码，以消除载波间干扰的预测影响。 还描述了与网络中的通信接收机一起操作的预处理器。 预处理器包括信道估计器，其可操作以基于所接收的信号来估计通信信道的至少一个特征。 预处理器根据至少一个估计特征来修改接收信号，并将经修改的信号提供给通信接收机。
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