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1. 发明申请

WO2016012382A1 METHOD FOR RECEIVING A DIGITAL SIGNAL IN A DIGITAL COMMUNICATION SYSTEM 审中-公开
标题翻译：用于在数字通信系统中接收数字信号的方法
公开(公告)号：WO2016012382A1
公开(公告)日：2016-01-28
申请号：PCT/EP2015/066489
申请日：2015-07-17
申请人： DEUTSCHES ZENTRUM FUER LUFT- UND RAUMFAHRT E.V.
发明人： DIMITROV, Svilen
IPC分类号： H04L27/38
CPC分类号： H04L27/3854 , H04L25/03184
摘要： Method for receiving a digital signal in a digital communication system The method for receiving a digital signal in a digital communication systems with linear and/or non-linear distortion comprises receiving the digital signal transmitted via a transmission channel, wherein the received signal including an interfering component, and processing the received signal for providing adjacent channel interference (ACI) cancellation, including intermodulation interference (IMI) and residual inter-symbol interference (ISI) cancellation, wherein processing comprises iteratively performing both estimation of the interfering component and subtraction of the estimated interfering component from the received signal.
摘要翻译：用于在数字通信系统中接收数字信号的方法用于在具有线性和/或非线性失真的数字通信系统中接收数字信号的方法包括接收经由传输信道发射的数字信号，其中接收的信号包括干扰并且处理所述接收信号以提供包括互调干扰（IMI）和剩余符号间干扰（ISI）消除）的相邻信道干扰（ACI）消除，其中处理包括迭代地执行所述干扰分量的估计和减去所估计的来自接收信号的干扰分量。

2. 发明申请

WO2012148601A1 METHOD AND APPARATUS FOR DATA QUANTIZATION AND PACKING WITH VARIABLE BIT WIDTH AND PERIOD 审中-公开
标题翻译：用于数据量化和包装的可变位宽度和周期的方法和装置
公开(公告)号：WO2012148601A1
公开(公告)日：2012-11-01
申请号：PCT/US2012/030197
申请日：2012-03-22
申请人： QUALCOMM INCORPORATED , OH, Seokyong , SUN, Thomas , KRISHNAMOORTHI, Raghuraman
发明人： OH, Seokyong , SUN, Thomas , KRISHNAMOORTHI, Raghuraman
IPC分类号： H04L25/06 , H04L25/03
CPC分类号： H04L25/03184 , H04L25/067
摘要： The various embodiments provide circuitry and methods for packing Log Likelihood Ratio ("LLR") values into a buffer memory in a compressed format which reduces the amount of buffer memory required. Various embodiments use a type of quantization which reduces the bit width of the LLR values that are stored, with the particular level of quantization depending upon the code rate of the data. The degree, pattern, and periodicity of bit width compression employed may depend upon the code rate of the received transmission. Bit width patterns use for LLR value quantization may be generated by a shift register circuit which provides an efficient mechanism for controlling an LLR packer circuit based upon the code rate of the received signal.
摘要翻译：各种实施例提供用于将对数似然比（“LLR”）值以压缩格式打包到缓冲存储器中的电路和方法，其减少所需的缓冲存储器的量。各种实施例使用一种类型的量化，其根据数据的码率降低具有特定的量化水平的存储的LLR值的位宽度。所采用的位宽度压缩的程度，模式和周期可能取决于接收到的传输的码率。用于LLR值量化的位宽度图案可以由移位寄存器电路产生，该移位寄存器电路基于接收信号的码率提供用于控制LLR封隔器电路的有效机构。

3. 发明申请

WO2011048548A2 METHOD FOR POST DETECTION IMPROVEMENT IN MIMO 审中-公开
标题翻译： MIMO中检测改进的方法
公开(公告)号：WO2011048548A2
公开(公告)日：2011-04-28
申请号：PCT/IB2010/054733
申请日：2010-10-19
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , KHAYRALLAH, Ali S.
发明人： KHAYRALLAH, Ali S.
IPC分类号： H04L25/03
CPC分类号： H04L25/03305 , H04L25/03184 , H04L25/03331 , H04L2025/03426
摘要： A two-stage approach to MIMO detection improves receiver performance in a computationally tractable manner. A whitening joint detector processes a MIMO symbol stream. The whitening joint detector includes a pre-filter operative to suppress a first subset of the received MIMO streams as colored noise. The whitening joint detector further includes a primary joint detector operative to process a second subset of the MIMO streams and to output a preliminary solution obtained by minimizing a whitening joint detection metric. A secondary detector then operates in the vicinity of the primary joint detector preliminary solution. The secondary detector improves the preliminary solution by comparison to a full detection metric.
摘要翻译： MIMO检测的两阶段方法以计算容易的方式改善了接收机的性能。美白联合检测器处理MIMO符号流。美白联合检测器包括一个预滤波器，用于将接收到的MIMO流的第一子集抑制为有色噪声。美白联合检测器还包括主接头检测器，其操作以处理MIMO流的第二子集，并输出通过使美白关节检测度量最小化获得的初步解。次级检测器然后在主接头检测器初步解决方案附近操作。二次检测器通过与完全检测度量相比较改进了初步解决方案。

4. 发明申请

WO2011021143A3 A METHOD AND APPARATUS FOR AN IMPROVED WIRELESS COMMUNICATION RECEIVER 审中-公开
标题翻译：一种改进的无线通信接收机的方法和设备
公开(公告)号：WO2011021143A3
公开(公告)日：2011-04-28
申请号：PCT/IB2010053692
申请日：2010-08-16
申请人： ERICSSON TELEFON AB L M , KHAYRALLAH ALI S
发明人： KHAYRALLAH ALI S
IPC分类号： H04L25/03
CPC分类号： H04L25/03171 , H04L25/03184 , H04L25/03203 , H04L25/03286 , H04L25/03318
摘要： As disclosed herein, a "super receiver" structure enriches the information provided for decoding modem bits included m a received sequence of symbols, In particular, an equalizer circuit provides joint metrics to a decoder circuit w here the joint metrics, advantageously reflect joint bit probabilities. However, the metrics are computed without need for complex joint probability calculations The decoder circuit ''fuses'" the joint metrics w ith conesponding side information, which indicates the likelihood that on or more bits represented by the joint metric take on a particular value Such fusing biases the soft value estimation for the other bits represented by the joint metric, thus enabling the decoder to operate on refined soft values in its bit decoding operations.
摘要翻译：如这里所公开的，“超接收机”结构丰富了为解码接收的符号序列中包括的调制解调器比特而提供的信息。具体地，均衡器电路在这里向联合度量提供联合度量给解码器电路w，有利地反映联合比特概率。然而，计算度量而不需要复杂的联合概率计算。解码器电路将相关度量与相应的边信息“融合”，这表明由联合度量表示的一个或多个比特具有特定值的可能性。例如融合对由联合度量表示的其他比特的软值估计进行偏置，从而使得解码器能够在其比特解码操作中对精化的软值进行操作。

5. 发明申请

WO2007016158A3 CODED ANTENNA SWITCHING FOR WIRELESS COMMUNICATIONS AND ASSOCIATED METHODS 审中-公开
标题翻译：无线通信编码天线切换及相关方法
公开(公告)号：WO2007016158A3
公开(公告)日：2009-04-16
申请号：PCT/US2006029031
申请日：2006-07-26
申请人： INTERDIGITAL TECH CORP , LI YINGXUE
发明人： LI YINGXUE
IPC分类号： H04L1/02 , H04B7/02
CPC分类号： H04L1/0618 , H04L25/03184 , H04L25/03292
摘要： A wireless communications device includes an encoder having an input for receiving an input symbol, and generates based upon the input symbol a channel symbol and an antenna control symbol. At least one transmitter is coupled to the encoder for receiving the channel symbol. An antenna switch is coupled to the encoder for receiving the antenna control symbol, and to the at least one transmitter for receiving the channel symbol to be transmitted. An antenna array is coupled to the antenna switch and includes N antenna elements, with N = 2. The antenna switch selects less than N antenna elements based upon the antenna control symbol for transmitting the channel symbol.
摘要翻译：无线通信设备包括具有用于接收输入符号的输入的编码器，并且基于输入符号生成信道符号和天线控制符号。至少一个发射机耦合到编码器以接收信道符号。天线开关耦合到编码器，用于接收天线控制符号，并耦合到至少一个发射机，用于接收待传输的信道符号。天线阵列耦合到天线开关并且包括N = 2的N个天线元件。天线开关基于用于发送信道符号的天线控制符号来选择少于N个天线元件。

6. 发明申请

WO2007016158A2 CODED ANTENNA SWITCHING FOR WIRELESS COMMUNICATIONS AND ASSOCIATED METHODS 审中-公开
标题翻译：无线通信编码天线切换及相关方法
公开(公告)号：WO2007016158A2
公开(公告)日：2007-02-08
申请号：PCT/US2006/029031
申请日：2006-07-26
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , LI, Yingxue
发明人： LI, Yingxue
IPC分类号： H04L27/00
CPC分类号： H04L1/0618 , H04L25/03184 , H04L25/03292
摘要： A wireless communications device includes an encoder having an input for receiving an input symbol, and generates based upon the input symbol a channel symbol and an antenna control symbol. At least one transmitter is coupled to the encoder for receiving the channel symbol. An antenna switch is coupled to the encoder for receiving the antenna control symbol, and to the at least one transmitter for receiving the channel symbol to be transmitted. An antenna array is coupled to the antenna switch and includes N antenna elements, with N ≥ 2. The antenna switch selects less than N antenna elements based upon the antenna control symbol for transmitting the channel symbol.
摘要翻译：无线通信设备包括具有用于接收输入符号的输入的编码器，并且基于输入符号生成信道符号和天线控制符号。至少一个发射机耦合到编码器以接收信道符号。天线开关耦合到编码器，用于接收天线控制符号，并耦合到至少一个发射机，用于接收待传输的信道符号。天线阵列耦合到天线开关并且包括N = 2的N个天线元件。天线开关基于用于发送信道符号的天线控制符号来选择少于N个天线元件。

7. 发明申请

WO9926383A3 RECEIVER FOR A CARRIER-MODULATED SIGNAL AND PROCESS FOR TREATING A CARRIER-MODULATED SIGNAL 审中-公开
标题翻译：接收器，用于调制的信号载波和方法用于编辑载波调制信号
公开(公告)号：WO9926383A3
公开(公告)日：1999-09-10
申请号：PCT/DE9803406
申请日：1998-11-18
申请人： SIEMENS AG , IAD GMBH , BUMILLER GERD , HUBER JOHANNES
发明人： BUMILLER GERD , HUBER JOHANNES
IPC分类号： H04L25/03
CPC分类号： H04L25/03184 , H04L2025/03407
摘要： The invention relates to a receiver for a carrier-modulated signal containing digital information, comprising a demodulation device leading to at least one time-discrete signal at the output thereof and one decision element which is arranged downstream from the demodulation device. The decision element derives the digital information from the time-discrete data, taking into account a data-dependent noise fraction, (e.g. ISI) in the time-discrete signal by minimising data error probability. The demodulation device comprises at least one FM demodulator. Preferably, said device has at least one AM demodulator, whereby both time-discrete output signals are supplied to the decision element as data and digital information is derived from at least one of the output signals. Another quasi unavailabe secondary signal is used for reception in addition to the direct FM signal.
摘要翻译：本发明包括用于包含数字信息的载波调制的信号的接收器，包括：一解调装置，其在在其输出时间离散信号，并且将解调的一个至少引线装置下游Entschiedungsglied，其中考虑到依赖于数据的噪声分量（例如ISI）的决定元件在时间 - 离散信号通过最小化的离散时间信号的数据错误概率导出的数字信息。所述解调装置包括至少一个FM解调器。优选地，它具有AM解调器和FM解调器，其两个时间离散的输出信号被提供到判定元件作为信息，其中所述数字信息是从输出信号中的至少一个导出的。因此，除了直接的FM信号也是另一种，准真的不站立Verfüng二次信号用于接收。 odulation线性失真发送信号，以实现相对于现有技术改进的接收器，接收器和相关的方法被提供，其中第一离散时间信号由解调装置产生。随后，在从所述数字信息的时间离散信号的数据相关的噪声分量由下考虑最小化数据错误概率的。

8. 发明申请

WO99012301A2 SYSTEM AND METHOD FOR SELF-ADAPTIVE MAXIMUM LIKELIHOOD SEQUENCE DETECTION 审中-公开
标题翻译：自适应最大似然序列检测的系统和方法
公开(公告)号：WO99012301A2
公开(公告)日：1999-03-11
申请号：PCT/US1998/018279
申请日：1998-09-03
IPC分类号： H04L25/03 , H04L1/00
CPC分类号： H04L25/03203 , H04L25/03184
摘要： An improved system and method for maximum likelihood sequence detection is disclosed where an incoming stream of symbols subjected to intersymbol interference (ISI) are decoded without knowledge of channel coefficients. Through use of improved metrics, the Fano and stack algorithms may be employed to determine the maximum likelihood sequence detection for a given input data stream during blind equalization, offering improved performance over the Viterbi algorithm which requires foreknowledge of the channel coefficients to operate effectively.
摘要翻译：公开了一种用于最大似然序列检测的改进的系统和方法，其中经历符号间干扰（ISI）的输入进入流被解码而不知道信道系数。通过使用改进的度量，可以采用Fano和堆栈算法来确定盲均衡期间给定输入数据流的最大似然序列检测，提供了比维特比算法更好的性能，其需要预先知道信道系数以有效地操作。

9. 发明申请

WO9856119A3 NON-COHERENT SEQUENCE ESTIMATION RECEIVER FOR DIGITAL MODULATIONS 审中-公开
标题翻译：用于数字调制的非相关序列估计接收器
公开(公告)号：WO9856119A3
公开(公告)日：1999-03-04
申请号：PCT/EP9803486
申请日：1998-06-03
申请人： ITALTEL SPA , RAHELI RICCARDO , COLAVOLPE GIULIO
发明人： RAHELI RICCARDO , COLAVOLPE GIULIO
IPC分类号： H03M13/25 , H03M13/41 , H04B7/005 , H04L25/03 , H04L27/00 , H04B7/00 , H04B7/05
CPC分类号： H04L25/03184 , H04B7/005 , H04L25/03337
摘要： It is described a non-coherent receiver for digital modulated radio signals, linear or not, possibly affected by channel coding. In the case of M-PSK, or M-QAM modulations, possibly combined with a channel coding, the signal received is demodulated and filtered by a filter matched to the pulse transmitted. In the case of linear modulations in presence of ISI, and of non-linear M-CPM modulations, the reception filter is a matched and whitened one. The signal is filtered and sampled and the samples are accumulated in a relevant phase reconstruction memory containing N - 1 samples preceding the actual one. Samples are processed making use of a Viterbi processor estimating the sequence of symbols transmitted according to maximum likelihood. The first embodiment calculates the branch metrics using an estimation of the carrier phase in PSP mode (Per-Survivor-Processing). This improves the performance of the receiver. In the second embodiment, the trellis branch metrics are obtained from the expression for the maximum likelihood sequence estimation. The Viterbi algorithm can be applied in this case.

10. 发明申请

WO2012029030A1 INCREMENTAL JOINT DETECTION OF FREQUENCY DOMAIN SYMBOLS 审中-公开
标题翻译：频率联合检测频率域符号
公开(公告)号：WO2012029030A1
公开(公告)日：2012-03-08
申请号：PCT/IB2011/053801
申请日：2011-08-30
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WANG, Yi-Pin Eric , HUI, Dennis
发明人： WANG, Yi-Pin Eric , HUI, Dennis
IPC分类号： H04L25/03
CPC分类号： H04L25/08 , H04L25/03012 , H04L25/03159 , H04L25/03171 , H04L25/03184 , H04L25/03312 , H04L25/03331 , H04L2025/03414 , H04L2025/03426
摘要： In one of its aspects the technology disclosed herein concerns a method of operating a receiver (30). The method comprises performing symbol detection by (1) receiving a frequency-domain signal that comprises contribution item time-domain symbols transmitted from one or more transmit antennas; (2) generating a transformation matrix and a triangular matrix based on a frequency domain channel response; (3) using the transformation matrix to transform the received frequency-domain signal to obtain a transformed, frequency-domain signal; and (4) performing symbol detection by performing plural stages of detection, each stage of detection using elements of the transformed frequency-domain received signal associated with the detection stage.
摘要翻译：在其一个方面，本文公开的技术涉及操作接收器（30）的方法。该方法包括：通过（1）接收包括从一个或多个发射天线发送的贡献项时域符号的频域信号来执行符号检测; （2）基于频域信道响应生成变换矩阵和三角矩阵; （3）使用变换矩阵来变换接收的频域信号以获得经变换的频域信号; 和（4）通过执行多级检测来执行符号检测，每个检测阶段使用与检测级相关联的变换的频域接收信号的元素。

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