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101. 发明授权

US09401825B1 Apparatus and method for channel estimation 有权
标题翻译：信道估计的装置和方法
公开(公告)号：US09401825B1
公开(公告)日：2016-07-26
申请号：US14981859
申请日：2015-12-28
申请人： Industrial Technology Research Institute
发明人： Ming-Ho Lu , Chi-Tien Sun
IPC分类号： H04L25/02 , H04L27/26
CPC分类号： H04L25/023 , H04L25/022 , H04L25/0224 , H04L25/025 , H04L27/2613 , H04L27/2647
摘要： A channel estimation apparatus includes a de-map circuit to map multiple preambles corresponding to multiple channels into real part (I) and imaginary part (Q) in QPSK coordinate. The costas channel estimation circuit receives the real part (I) and the imaginary part (Q) to operate corresponding to one of the BPSK structure and the QPSK structure to proceed calculation of (Q−I)*Sign (I+Q) or Q*Sign (I)−I*Sign (Q) for outputting an output value, wherein Sign(x) represents a sign circuit taking a sign of the x value. The loop filter circuit filters the output value under time domain. The smooth circuit receives the output of the loop filter circuit to perform smooth processing under frequency domain and then feeds back the same to the de-map circuit to continue channel estimation of a next loop, wherein the phases of the preambles are adjusted according to a direction of the output value approaching to zero.
摘要翻译：信道估计装置包括去映射电路，用于将与多个信道相对应的多个前导码映射为QPSK坐标中的实部（I）和虚部（Q）。 Costas信道估计电路接收对应于BPSK结构和QPSK结构之一的实部（I）和虚部（Q），以进行（Q-I）*符号（I + Q）或Q * Sign（I）-I * Sign（Q），用于输出输出值，其中Sign（x）表示采用x值的符号的符号电路。环路滤波器电路在时域下对输出值进行滤波。平滑电路接收环路滤波器电路的输出，以在频域下进行平滑处理，然后将其反馈到去映射电路，以继续对下一个环路进行信道估计，其中，前导序列的相位根据方向的输出值接近零。

102. 发明授权

US09319260B2 Block time domain channel estimation in OFDM system 有权
标题翻译： OFDM系统中的时域信道估计
公开(公告)号：US09319260B2
公开(公告)日：2016-04-19
申请号：US14525024
申请日：2014-10-27
申请人： Acorn Technologies, Inc.
发明人： Steven C Thompson , Fernando Lopez de Victoria
IPC分类号： H03K7/00 , H04L27/26 , H04L25/02
CPC分类号： H04L27/2695 , H04L25/0212 , H04L25/0218 , H04L25/022 , H04L25/0232 , H04L25/025
摘要： An OFDM receiver receives OFDM symbols in the frequency domain and comb filters and then punctures the OFDM symbols to leave symbols with actual pilot information and with null values at the data symbols. The receiver provides the punctured OFDM symbols to an OFDM symbol queue. A virtual pilot interpolator is coupled to the punctured OFDM symbol storage to generate virtual pilot information introduced to OFDM symbols. The interpolator may be a two dimensional Wiener filter. The receiver also includes a time domain channel estimator that processes a first OFDM symbol including virtual pilot information to generate a channel impulse response for the first OFDM symbol. A frequency equalizer equalizes the OFDM symbol in response to the channel impulse response for the first OFDM symbol.
摘要翻译： OFDM接收机接收频域中的OFDM符号和梳状滤波器，然后对OFDM符号进行穿孔，以留下具有实际导频信息的符号，并在数据符号处留下空值。接收机将穿孔的OFDM符号提供给OFDM符号队列。虚拟导频内插器耦合到穿孔的OFDM符号存储器，以产生引入OFDM符号的虚拟导频信息。内插器可以是二维维纳滤波器。接收机还包括时域信道估计器，处理包含虚拟导频信息的第一OFDM符号以产生第一OFDM符号的信道脉冲响应。频率均衡器响应于第一OFDM符号的信道脉冲响应来均衡OFDM符号。

103. 发明申请

US20160105257A1 DATA RECEIVING METHOD AND APPARATUS 审中-公开
标题翻译：数据接收方法和装置
公开(公告)号：US20160105257A1
公开(公告)日：2016-04-14
申请号：US14973966
申请日：2015-12-18
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Shurong JIAO , Gengshi Wu , Xiaolei Tie
IPC分类号： H04L1/00 , H04B1/7107 , H04L25/02 , H04L1/06
CPC分类号： H04L1/0048 , H04B1/71072 , H04L1/0026 , H04L1/0061 , H04L1/06 , H04L25/025
摘要： The present invention provides a data receiving method and apparatus. The method includes: receiving a data signal delivered by a base station, where the data signal includes at least two encoded data block groups, and each encoded data block group includes at least one encoded data block; decoding the data signal, and acquiring decoded data blocks obtained by decoding the encoded data blocks; and separately performing CRC detection on each decoded data block, and determining, according to a CRC, obtained through detection, of each decoded data block, whether to execute an SIC operation, and if it is determined to execute an SIC operation, executing CRC detection again on the decoded data block on which an SIC operation is performed, until a same CRC result occurs or all CRCs are zero.
摘要翻译：本发明提供一种数据接收方法和装置。该方法包括：接收由基站传送的数据信号，其中数据信号包括至少两个编码数据块组，并且每个编码数据块组包括至少一个编码数据块; 对数据信号进行解码，以及获取通过解码编码数据块而获得的解码数据块; 并且对每个解码数据块分别执行CRC检测，并且根据通过检测获得的每个解码数据块获得是否执行SIC操作的CRC确定，并且如果确定执行SIC操作，则执行CRC检测再次执行SIC操作的解码数据块，直到出现相同的CRC结果或所有CRC为零。

104. 发明授权

US09160595B2 Techniques to manage dwell times for pilot rotation 有权
标题翻译：管理驾驶员轮候时间的技术
公开(公告)号：US09160595B2
公开(公告)日：2015-10-13
申请号：US14325936
申请日：2014-07-08
申请人： Intel Corporation
发明人： Thomas J. Kenney , Eldad Perahia , Shahrnaz Azizi
IPC分类号： H04L27/26 , H04L5/00 , H04W72/04 , H04L25/02 , H04L25/03 , H04L1/00 , H04W84/12
CPC分类号： H04L27/2626 , H04L1/0002 , H04L1/0009 , H04L5/0007 , H04L5/003 , H04L5/0048 , H04L5/005 , H04L25/0224 , H04L25/0228 , H04L25/025 , H04L25/03019 , H04L2025/03617 , H04W72/04 , H04W72/0453 , H04W84/12
摘要： Techniques to manage dwell times for pilot rotation are described. An apparatus may comprise a memory configured to store a data structure with a set of modulation and coding schemes (MCS) available to an orthogonal frequency division multiplexing (OFDM) system, each MCS having an associated pilot dwell time. The apparatus may further comprise a processor circuit coupled to the memory, the processor circuit configured to identify a MCS to communicate a packet using multiple subcarriers of the OFDM system, and retrieve a pilot dwell time associated with the MCS from the memory, the pilot dwell time to indicate when to shift a pilot tone between subcarriers of the multiple subcarriers during communication of the packet. Other embodiments are described and claimed.
摘要翻译：描述了管理驾驶员旋转停留时间的技术。装置可以包括被配置为利用可用于正交频分复用（OFDM）系统的一组调制和编码方案（MCS））来存储数据结构的存储器，每个MCS具有相关的导频停留时间。该装置还可以包括耦合到存储器的处理器电路，处理器电路被配置为识别MCS以使用OFDM系统的多个子载波来传送分组，并且从存储器检索与MCS相关联的导频停留时间，导频驻留指示何时在分组的通信期间在多个子载波的子载波之间移动导频音。描述和要求保护其他实施例。

105. 发明申请

US20150270935A9 TECHNIQUES TO MANAGE DWELL TIMES FOR PILOT ROTATION 有权
标题翻译：用于管理转向时间的技术
公开(公告)号：US20150270935A9
公开(公告)日：2015-09-24
申请号：US13725549
申请日：2012-12-21
申请人： Intel Corporation
发明人： Thomas J. Kenney , Eldad Perahia , Shahrnaz Azizi
IPC分类号： H04L5/00 , H04W72/04
CPC分类号： H04L27/2626 , H04L1/0002 , H04L1/0009 , H04L5/0007 , H04L5/003 , H04L5/0048 , H04L5/005 , H04L25/0224 , H04L25/0228 , H04L25/025 , H04L25/03019 , H04L2025/03617 , H04W72/04 , H04W72/0453 , H04W84/12
摘要： Techniques to manage dwell times for pilot rotation are described. An apparatus may comprise a memory configured to store a data structure with a set of modulation and coding schemes (MCS) available to an orthogonal frequency division multiplexing (OFDM) system, each MCS having an associated pilot dwell time. The apparatus may further comprise a processor circuit coupled to the memory, the processor circuit configured to identify a MCS to communicate a packet using multiple subcarriers of the OFDM system, and retrieve a pilot dwell time associated with the MCS from the memory, the pilot dwell time to indicate when to shift a pilot tone between subcarriers of the multiple subcarriers during communication of the packet. Other embodiments are described and claimed.
摘要翻译：描述了管理驾驶员旋转停留时间的技术。装置可以包括被配置为利用可用于正交频分复用（OFDM）系统的一组调制和编码方案（MCS））来存储数据结构的存储器，每个MCS具有相关的导频停留时间。该装置还可以包括耦合到存储器的处理器电路，处理器电路被配置为识别MCS以使用OFDM系统的多个子载波来传送分组，并且从存储器检索与MCS相关联的导频停留时间，导频驻留指示何时在分组的通信期间在多个子载波的子载波之间移动导频音。描述和要求保护其他实施例。

106. 发明授权

US09124457B2 Frequency domain equalization for wireless communication 有权
标题翻译：用于无线通信的频域均衡
公开(公告)号：US09124457B2
公开(公告)日：2015-09-01
申请号：US13976029
申请日：2011-03-30
申请人： Evgeny Vasilievich Pustovalov , Evgeny Alexandrovitch Bakin , Grigory Sergeevich Evseev , Andrey Mihailovich Turlikov
发明人： Evgeny Vasilievich Pustovalov , Evgeny Alexandrovitch Bakin , Grigory Sergeevich Evseev , Andrey Mihailovich Turlikov
IPC分类号： H04L27/06 , H04L25/03 , H04L25/02
CPC分类号： H04L25/03159 , H04L25/022 , H04L25/0238 , H04L25/025 , H04L25/03171 , H04L2025/03707
摘要： Some demonstrative embodiments include devices, systems and/or methods of equalizing received wireless communication signals. For example, a device may include a pre-decoding equalizer to determine a plurality of filter weights by applying both a blind-equalization and a least-mean-squares (LMS) equalization to a wireless communication signal received over a wireless communication channel; a channel estimator to estimate a channel frequency response of the channel based on the filtering weights; and a turbo-equalization scheme including a decoder to decode the wireless communication signal and a turbo equalizer to equalize the decoded wireless communication signal using the estimated channel frequency response.
摘要翻译：一些演示实施例包括均衡接收到的无线通信信号的装置，系统和/或方法。例如，设备可以包括预解码均衡器，以通过对通过无线通信信道接收的无线通信信号同时应用盲均衡和最小均方（LMS）均衡来确定多个滤波器权重; 信道估计器，用于基于滤波权重来估计信道的信道频率响应; 以及包括用于解码无线通信信号的解码器和turbo均衡器的Turbo均衡方案，以使用估计的信道频率响应来均衡解码的无线通信信号。

107. 发明申请

US20150222303A1 HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS 有权
公开(公告)号：US20150222303A1
公开(公告)日：2015-08-06
申请号：US14620163
申请日：2015-02-11
申请人： Rambus Inc.
发明人： Vladimir Stojanovic , Andrew C. Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
IPC分类号： H04B1/04
CPC分类号： H04L25/49 , H04B1/04 , H04B1/0475 , H04B2001/0416 , H04L25/025 , H04L25/028 , H04L25/0282 , H04L25/03019 , H04L25/03343 , H04L25/03885 , H04L25/061 , H04L25/4917 , H04L2025/03363 , H04L2025/03802
摘要： A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level.

108. 发明申请

US20150139368A1 ENHANCED CHANNEL ESTIMATION IN TD-SCDMA 审中-公开
标题翻译： TD-SCDMA中的增强信道估计
公开(公告)号：US20150139368A1
公开(公告)日：2015-05-21
申请号：US14082884
申请日：2013-11-18
申请人： QUALCOMM Incorporated
发明人： Farrokh ABRISHAMKAR , Venkata Gautham Chavali , Insung Kang , Bahadir Canpolat
IPC分类号： H04L25/02
CPC分类号： H04L25/025 , H04B1/71072 , H04L25/0204 , H04L25/0212 , H04L25/0224 , H04L25/0232
摘要： Apparatus and methods for channel estimation in time division synchronous code division multiple access (TD-SCDMA) based on a signal received from one or more Node Bs include determining least squares channel metric estimates based on the received signal, identifying signal taps and noise taps in a tapped delay line channel estimate based on at least one of temporal correlations of the least squares channel metric estimates or composite hypothesis testing on the least squares channel metric estimates, and updating an interference buffer based on the signal taps and the noise taps.
摘要翻译：基于从一个或多个节点B接收的信号的时分同步码分多址（TD-SCDMA）中的信道估计的装置和方法包括基于接收信号确定最小二乘信道度量估计，识别信号抽头和噪声抽头基于所述最小二乘信道度量估计或所述最小二乘信道度量估计上的综合假设检验的时间相关性中的至少一个，以及基于所述信号抽头和所述噪声抽头来更新干扰缓冲器的抽头延迟线信道估计。

109. 发明申请

US20150098710A1 High-Speed Receiver Architecture 有权
标题翻译：高速接收机架构
公开(公告)号：US20150098710A1
公开(公告)日：2015-04-09
申请号：US14480085
申请日：2014-09-08
申请人： ClariPhy Communications. Inc.
发明人： Oscar Ernesto Agazzi , Diego Ernesto Crivelli , Hugo Santiago Carrer , Mario Rafael Hueda , German Cesar Augusto Luna , Carl Grace
IPC分类号： H04B10/40
CPC分类号： H04B10/5059 , H03M13/41 , H04B1/38 , H04B3/235 , H04B7/005 , H04B7/0456 , H04B10/25073 , H04B10/2941 , H04B10/40 , H04B10/6971 , H04B2001/0441 , H04B2201/709772 , H04L5/16 , H04L25/0202 , H04L25/025 , H04L25/03038 , H04L25/03057 , H04L2025/03477 , H04L2025/03617
摘要： A receiver (e.g., for a 10G fiber communications link) includes an interleaved ADC coupled to a multi-channel equalizer that can provide different equalization for different ADC channels within the interleaved ADC. That is, the multi-channel equalizer can compensate for channel-dependent impairments. In one approach, the multi-channel equalizer is a feedforward equalizer (FFE) coupled to a Viterbi decoder, for example a sliding block Viterbi decoder (SBVD); and the FFE and/or the channel estimator for the Viterbi decoder are adapted using the LMS algorithm.
摘要翻译：接收机（例如，用于10G光纤通信链路）包括耦合到多信道均衡器的交错ADC，其可以为交错ADC内的不同ADC信道提供不同的均衡。也就是说，多通道均衡器可以补偿信道相关的损伤。在一种方法中，多信道均衡器是耦合到维特比解码器（例如滑块维特比解码器（SBVD））的前馈均衡器（FFE）; 并且使用LMS算法适配维特比解码器的FFE和/或信道估计器。

110. 发明申请

US20150043629A1 BLOCK TIME DOMAIN CHANNEL ESTIMATION IN OFDM SYSTEM 有权
标题翻译： OFDM系统中的块时域通道估计
公开(公告)号：US20150043629A1
公开(公告)日：2015-02-12
申请号：US14525024
申请日：2014-10-27
申请人： Acorn Technologies, Inc.
发明人： Steven C. Thompson , Fernando Lopez de Victoria
IPC分类号： H04L27/26 , H04L25/02
CPC分类号： H04L27/2695 , H04L25/0212 , H04L25/0218 , H04L25/022 , H04L25/0232 , H04L25/025
摘要： An OFDM receiver receives OFDM symbols in the frequency domain and comb filters and then punctures the OFDM symbols to leave symbols with actual pilot information and with null values at the data symbols. The receiver provides the punctured OFDM symbols to an OFDM symbol queue. A virtual pilot interpolator is coupled to the punctured OFDM symbol storage to generate virtual pilot information introduced to OFDM symbols. The interpolator may be a two dimensional Wiener filter. The receiver also includes a time domain channel estimator that processes a first OFDM symbol including virtual pilot information to generate a channel impulse response for the first OFDM symbol. A frequency equalizer equalizes the OFDM symbol in response to the channel impulse response for the first OFDM symbol.
摘要翻译： OFDM接收机接收频域中的OFDM符号和梳状滤波器，然后对OFDM符号进行穿孔，以留下具有实际导频信息的符号，并在数据符号处具有空值。接收机将穿孔的OFDM符号提供给OFDM符号队列。虚拟导频内插器耦合到穿孔的OFDM符号存储器，以产生引入OFDM符号的虚拟导频信息。内插器可以是二维维纳滤波器。接收机还包括时域信道估计器，处理包含虚拟导频信息的第一OFDM符号以产生第一OFDM符号的信道脉冲响应。频率均衡器响应于第一OFDM符号的信道脉冲响应来均衡OFDM符号。

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