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1. 发明申请

US20180183472A1 ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING RECEIVER WITH LOW-RESOLUTION ANALOG TO DIGITAL CONVERTER AND ELECTRONIC DEVICE THEREOF 审中-公开
公开(公告)号：US20180183472A1
公开(公告)日：2018-06-28
申请号：US15390543
申请日：2016-12-26
申请人： Industrial Technology Research Institute
发明人： Chao-Kai Wen , Chang-Jen Wang , Jing-Shiun Lin , Jen-Yuan Hsu , Dung-Rung Hsieh , Chiu-Ping Wu
IPC分类号： H04B1/10 , H04L25/02 , H04B7/04 , H04L1/00 , H03M1/06
CPC分类号： H04B1/1027 , H03M1/06 , H03M1/0854 , H03M1/66 , H04B7/0417 , H04L1/0054 , H04L25/0256 , H04L25/0258 , H04L27/2647
摘要： The disclosure is directed to an OFDM receiver with a low-resolution ADC and an electronic device thereof. According to one of the exemplary embodiments, the OFDM receiver may include not limited to: an ADC module which receives a transmission signal of a channel in an analog format and digitizes the transmission signal into a digital format to generate a quantized transmission signal; an error compensating and estimating module which is coupled to the ADC module, receives the quantized transmission signal and a feedback signal which is a first estimated time-domain transmission signal to generate an estimated error signal according to a turbo iterative updating technique; and a signal estimating module which is coupled to the error compensating and estimating module, receives the estimated error signal and a channel attenuation coefficient of the channel to generate an estimated transmission signal.

2. 发明申请

US20180167237A1 DATA DETECTION IN MIMO SYSTEMS WITH DEMODULATION AND TRACKING REFERENCE SIGNALS 审中-公开
公开(公告)号：US20180167237A1
公开(公告)日：2018-06-14
申请号：US15378106
申请日：2016-12-14
申请人： Intel IP Corporation
发明人： Denis Gudovskiy , Karthik Rajagopalan , Rizwan Ghaffar , Chuxiang Li
IPC分类号： H04L25/02 , H04L5/00 , H04L25/03 , H04W24/02
CPC分类号： H04B7/0456 , H04B7/0413 , H04L5/0048 , H04L25/023 , H04L25/0256 , H04L25/03961 , H04L25/03993 , H04L27/2657 , H04L27/2695 , H04W24/02
摘要： What is disclosed is a method for wireless communication comprising receiving a wireless communication via a receiver of the mobile communication device, deriving a demodulation reference signal from a first plurality of symbols of the wireless communication; creating a channel estimation matrix using the demodulation reference signal; inverting the channel estimation matrix to obtain a channel pseudo-inverse matrix; deriving a tracking reference signal from a second plurality of symbols of the wireless communication; calculating a phase shift for one or more additional symbols based on the tracking reference signal; determining a corrected channel pseudo-inverse matrix for the one or more additional symbols by adjusting the channel pseudo-inverse matrix according to the calculated phase shift; and controlling the receiver to accomplish data detection using the corrected channel pseudo-inverse matrix on one or more orthogonal frequency division multiplexing subcarriers.

3. 发明申请

US20180026682A1 RECEIVING DEVICE AND METHOD USING SINGLE RF CHAIN 审中-公开
公开(公告)号：US20180026682A1
公开(公告)日：2018-01-25
申请号：US15597286
申请日：2017-05-17
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Seok SEO , Hyung Jin KIM , Jae Su SONG , Jung Hoon OH , Seong Chul CHO
IPC分类号： H04B7/0417 , H04W72/04 , H04L1/06 , H04L25/02
CPC分类号： H04B7/0417 , H04B7/088 , H04L1/0631 , H04L25/0204 , H04L25/0256 , H04W72/0446 , H04W72/046
摘要： A receiving device and method using a single RF chain includes a reception antenna module radiating a plurality of orthogonal beam patterns to receive a signal, a single RF chain processing a reception signal from the reception antenna module, a signal component extracting unit extracting a reception signal component corresponding to each beam pattern using the reception signal received through the reception antenna module and the single RF chain and a code value previously allocated to the plurality of beam patterns, and a beam pattern controller controlling a beam pattern radiated by the reception antenna module.

4. 发明授权

US09432059B1 Turbo equalizer and wireless receiving apparatus 有权
标题翻译： Turbo均衡器和无线接收设备
公开(公告)号：US09432059B1
公开(公告)日：2016-08-30
申请号：US14958559
申请日：2015-12-03
申请人： Panasonic Corporation
发明人： Takenori Sakamoto
IPC分类号： H03M13/00 , H04L25/08 , H04B1/12 , H03M13/29 , H04L25/02 , H04L25/03 , H04L1/00
CPC分类号： H03M13/6331 , H03M13/1102 , H03M13/2957 , H03M13/2975 , H04B1/123 , H04L1/0048 , H04L1/005 , H04L25/0256 , H04L25/03006 , H04L25/03019 , H04L25/03292 , H04L25/03318
摘要： A first noise variance estimator calculates a first noise variance estimation value based on an channel estimation value of a received signal. A minimum mean squared error (MMSE) filter performs equalization on a residual interference component that is obtained by subtracting an interference component and desired signal component from the received signal. A second noise variance estimator calculates a second noise variance estimation value by using the equalized residual interference component that is output from the MMSE filter. A first noise variance selector and second noise variance selector select either one of the first or second noise variance estimation value, or selects a mean value of the two noise variance estimation values. A filter coefficient calculator calculates a filter coefficient based on a first selected noise variance value. An extrinsic LLR calculator calculates an extrinsic LLR by using a second selected noise variance value selected by the second noise variance selector.
摘要翻译：第一噪声方差估计器基于接收信号的信道估计值来计算第一噪声方差估计值。最小均方误差（MMSE）滤波器对通过从接收信号中减去干扰分量和期望信号分量而获得的残留干扰分量执行均衡。第二噪声方差估计器通过使用从MMSE滤波器输出的均衡的残留干扰分量来计算第二噪声方差估计值。第一噪声方差选择器和第二噪声方差选择器选择第一或第二噪声方差估计值中的任一个，或者选择两个噪声方差估计值的平均值。滤波器系数计算器基于第一选择的噪声方差值来计算滤波器系数。外在LLR计算器通过使用由第二噪声方差选择器选择的第二选择噪声方差值来计算外在LLR。

5. 发明授权

US09391812B2 Channel estimation method and receiver 有权
标题翻译：信道估计方法和接收机
公开(公告)号：US09391812B2
公开(公告)日：2016-07-12
申请号：US14971853
申请日：2015-12-16
申请人： Huawei Technologies Co., Ltd.
发明人： Xiaojun Luo
IPC分类号： H04L27/06 , H04L25/02
CPC分类号： H04L25/0204 , H04L25/0248 , H04L25/0256
摘要： Embodiments of the present invention provide a channel estimation method and a receiver. The method includes: determining a channel space related matrix of each channel according to first signals received by N antennas of a receiver on each channel of M channels, where the channel space related matrix of each channel is used to indicate space correlation between the N antennas on each channel, wherein N is a positive integer greater than 1, and M is a positive integer; determining a channel fading factor filter matrix according to the channel space related matrices of the M channels, where the channel fading factor filter matrix is an N×N-dimensional matrix; and determining channel estimation of a first channel according to the channel fading factor filter matrix and channel fading factors corresponding to the N antennas when the N antennas receive first signals on the first channel.
摘要翻译：本发明的实施例提供一种信道估计方法和接收机。该方法包括：根据在M个信道的每个信道上的接收机的N个天线接收的第一信号来确定每个信道的信道空间相关矩阵，其中每个信道的信道空间相关矩阵用于指示N个天线之间的空间相关在每个通道上，其中N是大于1的正整数，M是正整数; 根据M个信道的信道空间相关矩阵确定信道衰落因子滤波器矩阵，其中信道衰落因子滤波器矩阵是N×N维矩阵; 以及当所述N个天线在所述第一信道上接收到第一信号时，根据所述信道衰落因子滤波器矩阵和对应于所述N个天线的信道衰落因子来确定第一信道的信道估计。

6. 发明申请

US20160164700A1 METHOD AND APPARATUS FOR CHANNEL ESTIMATION USING LOCALIZED SINR IN WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：在无线通信系统中使用本地化SINR进行信道估计的方法和装置
公开(公告)号：US20160164700A1
公开(公告)日：2016-06-09
申请号：US14564874
申请日：2014-12-09
申请人： MBIT WIRELESS, INC.
发明人： Bhaskar Patel , Arumugam Govindswamy
IPC分类号： H04L25/02
CPC分类号： H04L25/0224 , H04L25/021 , H04L25/022 , H04L25/0228 , H04L25/0256
摘要： A method and apparatus are disclosed for channel estimation in broadband wireless communication systems by using locally prevailing SINR conditions in the RF channel bandwidth. According to one aspect, the channel estimation method adapts to the local SINR across different parts of the channel bandwidth. This leads to channel estimates that are optimized to SINR conditions prevailing in different parts of the channel bandwidth. The channel estimation method described herein may result in the reduction of channel estimation errors, which in turn may lead to improved performance of a broadband wireless communication system.
摘要翻译：公开了一种在宽带无线通信系统中通过使用RF信道带宽中的本地主要SINR条件来进行信道估计的方法和装置。根据一个方面，信道估计方法适应于信道带宽的不同部分的本地SINR。这导致对信道带宽的不同部分中主要针对SINR条件进行优化的信道估计。这里描述的信道估计方法可以导致信道估计误差的减少，这进而可能导致宽带无线通信系统的改进的性能。

7. 发明授权

US09350570B2 Method of operating a receiver and a receiver 有权
标题翻译：操作接收机和接收机的方法
公开(公告)号：US09350570B2
公开(公告)日：2016-05-24
申请号：US14491473
申请日：2014-09-19
申请人： Krishna Balachandran , Joseph H. Kang , Kemal M. Karakayali , Kiran M. Rege
发明人： Krishna Balachandran , Joseph H. Kang , Kemal M. Karakayali , Kiran M. Rege
IPC分类号： H04L25/08 , H04L25/02 , H04B1/10
CPC分类号： H04B1/10 , H04B17/318 , H04L25/0204 , H04L25/0228 , H04L25/0256
摘要： In one embodiment, the method includes determining, at a receiver, a total average received power over N resource elements and the L antennas, where N and L are integers greater than or equal to 1. The method further includes determining, at the receiver, a first bias in a first estimate of average received power for a received desired signal based on the determined total average received power; and generating, at the receiver, a first refined estimate of the average received power for the received desired signal based on the first estimate and the determined first bias.
摘要翻译：在一个实施例中，该方法包括在接收机处确定N个资源元素和L个天线上的总平均接收功率，其中N和L是大于或等于1的整数。该方法还包括在接收机处，基于所确定的总平均接收功率对接收到的期望信号的平均接收功率的第一估计中的第一偏置; 以及在所述接收机处，基于所述第一估计和所确定的第一偏置，在所述接收机处生成所接收的期望信号的平均接收功率的第一精确估计。

8. 发明授权

US09325395B1 Channel processing with dedicated pilots utilizing information from broadcast pilots 有权
标题翻译：使用来自广播飞行员的信息的专用飞行员进行信道处理
公开(公告)号：US09325395B1
公开(公告)日：2016-04-26
申请号：US14042788
申请日：2013-10-01
申请人： MARVELL INTERNATIONAL LTD.
发明人： Mingguang Xu , Yakun Sun , Christian R. Berger
IPC分类号： H04B7/04 , H04L25/03 , H04L25/06 , H04L1/06 , H04L1/20
CPC分类号： H04L25/067 , H04B7/0413 , H04L1/0618 , H04L1/20 , H04L25/0222 , H04L25/0234 , H04L25/0256 , H04L25/03038
摘要： Systems, methods, and other embodiments associated with channel processing with dedicated pilots utilizing information from broadcast pilots are described. According to one embodiment, an method includes receiving, through a channel, i) a signal resource block that includes data and a dedicated pilot that is precoded and ii) at least one broadcast pilot that is not precoded. A channel property is deduced from the broadcast pilot; and the channel is processed by applying the channel property to the dedicated pilot. In one embodiment, the method includes estimating an effective channel by applying the channel property to the dedicated pilot.
摘要翻译：描述了利用来自广播导频的信息的专用导频与信道处理相关联的系统，方法和其它实施例。根据一个实施例，一种方法包括：通过信道接收i）包括预编码的数据和专用导频的信号资源块，以及ii）未被预编码的至少一个广播导频。从广播飞行员推断频道属性; 并且通过将信道属性应用于专用导频来处理信道。在一个实施例中，该方法包括通过将信道属性应用于专用导频来估计有效信道。

9. 发明申请

US20160112218A1 CHANNEL ESTIMATION DEVICE, RECEIVING DEVICE, CHANNEL ESTIMATION METHOD, CHANNEL ESTIMATION PROGRAM, AND RECORDING MEDIUM 有权
标题翻译：信道估计设备，接收设备，信道估计方法，信道估计程序和记录介质
公开(公告)号：US20160112218A1
公开(公告)日：2016-04-21
申请号：US14893941
申请日：2013-06-06
申请人： PIONEER CORPORATION
发明人： Yoshinori ABE
IPC分类号： H04L25/02 , H04L27/38 , H04L5/00 , H04L27/26
CPC分类号： H04L25/0256 , H04B7/0854 , H04L1/0047 , H04L1/0054 , H04L5/0048 , H04L27/2647 , H04L27/38
摘要： A sum of products calculation of a predetermined tap number of tap data and a prescribed tap number of coefficients is carried out and a sum of the predetermined number of tap data is calculated. A replica signal is calculated on the basis of the sum of products calculation result, the sum of the tap data, and a correction coefficient. A residual signal is calculated as the difference between the replica and received signals. The predetermined tap number of coefficients is updated based on the predetermined tap number of tap data and the residual signal, and the correction coefficient calculated from the residual signal. Here, the tap data is either a data symbol before the superimposition of a DC component or an estimation thereof. This allows an adaptive FIR filter used in channel estimation of a received signal by a digitally modulated wave whereupon a DC component is superimposed.
摘要翻译：执行抽头数据的预定抽头数和系数的规定抽头数的积计算的总和，并计算预定数量的抽头数据的和。基于产品计算结果和抽头数据之和与校正系数之和来计算副本信号。剩余信号被计算为复制和接收信号之间的差。基于抽头数据和剩余信号的预定抽头数和从残差信号计算的校正系数，更新系数的预定抽头数。这里，抽头数据是在DC分量叠加之前的数据符号或其估计。这允许用于通过数字调制波的信号估计接收信号的自适应FIR滤波器，由此叠加DC分量。

10. 发明授权

US09160581B2 Receiver with Doppler tolerant equalization 有权
标题翻译：具有多普勒容限均衡的接收机
公开(公告)号：US09160581B2
公开(公告)日：2015-10-13
申请号：US13997290
申请日：2012-05-15
申请人： Evgeny Bakin , Grigory Evseev , Evgeny Pustovalov , Andrey Turlikov
发明人： Evgeny Bakin , Grigory Evseev , Evgeny Pustovalov , Andrey Turlikov
IPC分类号： H04L27/06 , H04L25/03 , H04L25/02 , H04B1/707
CPC分类号： H04L25/03885 , H04B2001/70724 , H04L25/0212 , H04L25/023 , H04L25/0256 , H04L25/03133
摘要： A mobile communication device to equalize a Doppler shifted received signal according to one embodiment is configured to: extract one or more pilot signals from a segment of the received signal; perform Minimum Mean Square Error (MMSE) filtering on the extracted pilot signals, wherein the filter provides estimated pilot signal impulse responses; estimate the amplitudes of one or more path components of the estimated pilot signal impulse responses; estimate the phases of one or more path components of the estimated pilot signal impulse responses; and combine the estimated amplitudes and the estimated phases of the path components of the pilot signal impulse responses, wherein the combination provides an estimated channel impulse response.
摘要翻译：根据一个实施例的用于均衡多普勒频移接收信号的移动通信设备被配置为：从接收信号的段中提取一个或多个导频信号; 对所提取的导频信号执行最小均方误差（MMSE）滤波，其中所述滤波器提供估计的导频信号脉冲响应; 估计所估计的导频信号脉冲响应的一个或多个路径分量的振幅; 估计所估计的导频信号脉冲响应的一个或多个路径分量的相位; 并组合导频信号脉冲响应的路径分量的估计振幅和估计相位，其中该组合提供估计的信道脉冲响应。

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