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1. 发明申请

US20180176049A1 PARALLEL PROCESSING OF SPHERE DECODERS AND OTHER VECTOR FINDING APPROACHES USING TREE SEARCH 审中-公开
公开(公告)号：US20180176049A1
公开(公告)日：2018-06-21
申请号：US15735948
申请日：2016-06-07
申请人： UNIVERSITY OF SURREY
发明人： Konstantinos NIKITOPOULOS , Rahim TAFAZOLLI
IPC分类号： H04L25/03 , H04L1/00 , G06F17/30
CPC分类号： H04L25/03242 , G06F16/2246 , G06F16/2458 , H04B7/0413 , H04L1/0054 , H04L1/0055 , H04L25/03286
摘要： Apparatus and methods for finding a vector solution to a tree search problem are disclosed. In some embodiments, the apparatus and methods can be used for sphere decoding. The tree search is performed by: obtaining a tree graph; identifying a plurality of nodes in the tree graph that are likely to be part of the solution to the tree graph; partitioning the tree graph into a plurality of sub-trees, each sub-tree including one or more of the identified nodes; processing the plurality of sub-trees in parallel by allocating one or more of the processing elements to each of the sub-trees; and determining the solution based on results of the sub-tree processing.

2. 发明申请

US20170238317A1 METHOD AND APPARATUS FOR DATA-AIDED ITERATIVE CHANNEL ESTIMATION 审中-公开
公开(公告)号：US20170238317A1
公开(公告)日：2017-08-17
申请号：US15131781
申请日：2016-04-18
申请人： Yoo Jin CHOI , Dongwoon Bai , Sungsoo Kim , Jungwon Lee
发明人： Yoo Jin CHOI , Dongwoon Bai , Sungsoo Kim , Jungwon Lee
IPC分类号： H04W72/04 , H04L25/02 , H04L1/18 , H04L27/20 , H04J4/00 , H04L5/00 , H04B1/10
CPC分类号： H04W72/0453 , H04B1/10 , H04B1/123 , H04J4/00 , H04L1/005 , H04L1/1819 , H04L5/005 , H04L5/0073 , H04L25/0204 , H04L25/0228 , H04L25/0256 , H04L25/0328 , H04L25/03286 , H04L25/067 , H04L27/2017
摘要： An apparatus and a method. The apparatus includes a channel estimation (CE) module, including a first input for receiving pilot resource element (RE) observations, a second input for receiving data RE observations, a third input for receiving log-likelihood ratios (LLRs), and an output; a detector, including a first input connected to the output of the CE module, a second input for receiving data RE observations, and an output connected to the third input of the CE module; and a decoder, including an input connected to the third input of the CE module, and an output.

3. 发明申请

US20160149729A1 MULTI-WIRE SYMBOL TRANSITION CLOCKING SYMBOL ERROR CORRECTION 有权
标题翻译：多线符号转换时钟符号错误校正
公开(公告)号：US20160149729A1
公开(公告)日：2016-05-26
申请号：US14949290
申请日：2015-11-23
申请人： QUALCOMM Incorporated
发明人： Shoichiro Sengoku
IPC分类号： H04L25/03 , H04L27/38
CPC分类号： G06F11/1004 , H03M5/00 , H03M13/03 , H03M13/63 , H04L1/004 , H04L1/0041 , H04L1/0061 , H04L1/245 , H04L7/033 , H04L25/0264 , H04L25/0272 , H04L25/03286 , H04L25/14 , H04L25/493 , H04L27/38
摘要： Apparatus, systems and methods for error detection in transmissions on a multi-wire interface are disclosed. A method for correcting transmission errors in multi-wire transition-encoded interface may include determining whether a symbol error is present in the sequence of symbols based on a value of an error detection code (EDC) in the received plurality of bits, generating one or more permutations of the sequence of symbols, where each permutation includes one symbol that is different from corresponding symbols in the sequence of symbols and different from corresponding symbols in other permutations. A permutation in the one or more permutations may be identified as including a corrected sequence of symbols when it produces a decoded EDC value that matches an expected EDC value. The expected EDC value may correspond to a predefined value for EDCs transmitted over the multi-wire interface to enable detection of up to two symbol errors at the receiver.
摘要翻译：公开了用于在多线接口上的传输中的错误检测的装置，系统和方法。用于校正多线转换编码接口中的传输错误的方法可以包括基于接收到的多个比特中的错误检测码（EDC）的值来确定符号序列中是否存在符号错误，生成一个或符号序列的更多排列，其中每个置换包括不同于符号序列中的对应符号并且不同于其他排列中的对应符号的一个符号。一个或多个排列中的排列可以被识别为当其产生与期望的EDC值匹配的解码的EDC值时包括经校正的符号序列。期望的EDC值可以对应于通过多线接口发送的EDC的预定义值，以使得能够在接收器处检测多达两个符号错误。

4. 发明申请

US20160147596A1 ERROR DETECTION CONSTANTS OF SYMBOL TRANSITION CLOCKING TRANSCODING 审中-公开
标题翻译：符号转换时钟检测的错误检测常数
公开(公告)号：US20160147596A1
公开(公告)日：2016-05-26
申请号：US14949435
申请日：2015-11-23
申请人： QUALCOMM Incorporated
发明人： Shoichiro Sengoku
IPC分类号： G06F11/10 , H04L1/00
CPC分类号： G06F11/1004 , H03M5/00 , H03M13/03 , H03M13/63 , H04L1/004 , H04L1/0041 , H04L1/0061 , H04L1/245 , H04L7/033 , H04L25/0264 , H04L25/0272 , H04L25/03286 , H04L25/14 , H04L25/493 , H04L27/38
摘要： Apparatus, systems and methods for error detection in transmissions on a multi-wire interface are disclosed. A method for transmitting data on the multi-wire interface includes transmitting data on a multi-wire interface includes obtaining a plurality of bits to be transmitted over a plurality of connectors, converting the plurality of bits into a sequence of symbols, and transmitting the sequence of symbols on the plurality of connectors. A predetermined number of least significant bits in the plurality of bits may be used for error detection. The predetermined number of least significant bits may have a constant value that is different from each of a plurality of error values. A symbol error affecting one or two symbols in the sequence of symbols may cause a decoded version of the predetermined number of least significant bits to have value that is one of a plurality of error values.
摘要翻译：公开了用于在多线接口上的传输中的错误检测的装置，系统和方法。一种用于在多线接口上发送数据的方法，包括：在多线接口上发送数据包括获得要在多个连接器上发送的多个比特，将所述多个比特转换成符号序列，以及发送所述序列的多个连接器上的符号。多个位中的预定数量的最低有效位可用于错误检测。预定数量的最低有效位可以具有不同于多个误差值中的每一个的常数值。影响符号序列中的一个或两个符号的符号错误可能导致预定数量的最低有效位的解码版本具有作为多个误差值之一的值。

5. 发明授权

US09325451B1 Maximum likelihood decoding apparatus 有权
标题翻译：最大似然解码装置
公开(公告)号：US09325451B1
公开(公告)日：2016-04-26
申请号：US14691620
申请日：2015-04-21
申请人： Samuel Kerhuel
发明人： Samuel Kerhuel
IPC分类号： H04L27/06 , H04L1/00 , H04B17/309 , H04W24/04
CPC分类号： H04L1/0054 , H04L1/0047 , H04L1/0072 , H04L25/03286
摘要： A decoding apparatus for decoding a signal transmitted over a channel in a communication system, the signal comprising at least one data symbol and one pilot symbol the data symbol comprising a first encoded sequence encoding a transmitted sequence, the pilot symbol comprising a pilot signal.The decoding apparatus performs an additional processing after the operations of a conventional maximum likelihood decoding. A predetermined number of hypotheses of the conventional maximum likelihood decoding are selected to perform a maximum likelihood processing where channel estimation is improved by considering data symbol information. A receiver, a LTE receiver, a method and a computer program are also claimed.
摘要翻译：一种用于解码在通信系统中通过信道发送的信号的解码装置，所述信号包括至少一个数据符号和一个导频符号，所述数据符号包括编码所发射序列的第一编码序列，所述导频符号包括导频信号。解码装置在常规最大似然解码的操作之后执行附加处理。选择常规最大似然解码的预定数量的假设来执行通过考虑数据符号信息来提高信道估计的最大似然处理。还声称接收机，LTE接收机，方法和计算机程序。

6. 发明申请

US20140325319A1 STATISTICS ADAPTIVE SOFT DECISION FORWARD ERROR CORRECTION IN DIGITAL COMMUNICATION 有权
标题翻译：统计自适应软判决数字通信中的前向纠错
公开(公告)号：US20140325319A1
公开(公告)日：2014-10-30
申请号：US14220049
申请日：2014-03-19
申请人： ZTE (USA) Inc.
发明人： Yi Cai , Zhensheng Jia
IPC分类号： H04L1/00
CPC分类号： H04L1/0054 , H04L25/03286
摘要： A digital communication receiver uses a maximum likelihood sequence estimation stage to recover symbols from digitized sample values of a received signal. A probability density function is calculated and used to improve a soft decision forward error correction calculation. The results of error decoding, which represent error corrected data bits, are further used to improve the probability density function calculation.
摘要翻译：数字通信接收机使用最大似然序列估计级从接收信号的数字化样本值中恢复符号。计算概率密度函数并用于改进软判决前向纠错计算。代表纠错数据位的错误解码结果进一步用于提高概率密度函数的计算。

7. 发明授权

US08817916B1 Methods and apparatus for providing a maximum likelihood (ML) decoding pipeline for quadruture phase-shift keying (QPSK) multiple-input-multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) receivers 有权
标题翻译：用于提供用于正交相移键控（QPSK）多输入多输出（MIMO）正交频分复用（OFDM）接收机的最大似然（ML）解码流水线的方法和装置
公开(公告)号：US08817916B1
公开(公告)日：2014-08-26
申请号：US14065003
申请日：2013-10-28
申请人： Marvell International Ltd.
发明人： Konstantinos Sarrigeorgidis , Yanni Chen , Leilei Song , Kedar Shirali
IPC分类号： H04L27/00
CPC分类号： H04L25/067 , H03M13/612 , H04L1/0045 , H04L25/03286 , H04L27/2647
摘要： Methods and apparatus are provided for performing log-likelihood ratio (LLR) computations in a pipeline. Portions of a metric used to compute LLR values are computed in one pipeline part. The portions correspond to all permutations of some received signal streams. The portions are combined with one permutation x2 of the received signal stream that was not included in the previous pipeline computation in a subsequent pipeline part to produce M values associated with a particular bit position. At each subsequent clock cycle, a different permutation of x2 is combined with the previously computed portions producing different M values. State values corresponding to different values of bit positions of the received stream are computed by finding the minimum among the M values, in each clock cycle, that affect a particular bit position. The state values are combined to compute the LLR values for the bit position in a final pipeline part.
摘要翻译：提供了在流水线中执行对数似然比（LLR）计算的方法和装置。用于计算LLR值的度量的部分在一个管道部分中计算。这些部分对应于一些接收的信号流的所有排列。这些部分与接收信号流的一个置换x2组合在一起，该置换x2未被包括在随后的流水线部分中的先前流水线计算中，以产生与特定位位置相关联的M个值。在每个随后的时钟周期，x2的不同置换与先前计算的产生不同M值的部分组合。通过在每个时钟周期内找到影响特定位位置的M个值中的最小值来计算对应于接收流的比特位置的不同值的状态值。组合状态值以计算最终流水线部分中位位置的LLR值。

8. 发明授权

US08731085B1 Method and apparatus for equalization and decoding in a wireless communications system including plural receiver antennae 有权
标题翻译：在包括多个接收机天线的无线通信系统中进行均衡和解码的方法和装置
公开(公告)号：US08731085B1
公开(公告)日：2014-05-20
申请号：US13947562
申请日：2013-07-22
申请人： Marvell International Ltd.
发明人： Hui-Ling Lou , Kok-Wui Cheong
IPC分类号： H04L27/06 , H04L27/28
CPC分类号： H04L27/2649 , H03M13/4107 , H04B7/0857 , H04L1/0047 , H04L1/0054 , H04L25/0202 , H04L25/03159 , H04L25/03286
摘要： A transceiver including a receiver and a receive baseband processor. The receiver is configured to receive an analog radio frequency signal including a time domain analog Orthogonal Frequency Division Multiplexing (OFDM) symbol and generate a baseband signal. The baseband signal includes a frequency domain digital OFDM symbol. The receive baseband processor is configured to generate an estimate of the channel for each sub-carrier of the frequency domain digital OFDM symbol, generate channel state information corresponding to each sub-carrier of the frequency domain digital OFDM symbol, generate a plurality of demodulated symbols based on the estimate of the channel for each sub-carrier of the frequency domain digital OFDM symbol, wherein each demodulated symbol corresponds to a given sub-carrier of the frequency domain digital OFDM symbol, perform decoding on each demodulated symbol, and generate a corresponding decoded symbol, wherein the decoding of each demodulated symbol is based on the channel state information.
摘要翻译：收发器，包括接收机和接收基带处理器。接收机被配置为接收包括时域模拟正交频分复用（OFDM）符号的模拟射频信号并产生基带信号。基带信号包括频域数字OFDM符号。接收基带处理器被配置为产生频域数字OFDM符号的每个子载波的信道的估计，生成与频域数字OFDM符号的每个子载波相对应的信道状态信息，生成多个解调符号基于频域数字OFDM符号的每个子载波的信道的估计，其中每个解调符号对应于频域数字OFDM符号的给定子载波，对每个解调的符号执行解码，并产生相应的解码符号，其中每个解调符号的解码基于信道状态信息。

9. 发明授权

US08654882B2 Method and apparatus of detecting signal based on minimum mean square error in multiple input multiple output system 失效
标题翻译：基于多输入多输出系统的最小均方误差检测信号的方法和装置
公开(公告)号：US08654882B2
公开(公告)日：2014-02-18
申请号：US13453464
申请日：2012-04-23
申请人： Hoon Lee , Young Jo Bang , Seungjae Bang , Jung Pil Choi , Youn Ok Park , Jae Kwon Kim , Nulibyul Kim
发明人： Hoon Lee , Young Jo Bang , Seungjae Bang , Jung Pil Choi , Youn Ok Park , Jae Kwon Kim , Nulibyul Kim
IPC分类号： H04B7/02 , H04L1/02 , H04L27/06
CPC分类号： H04L25/03318 , H04B7/0854 , H04L25/03286 , H04L25/03292 , H04L25/03891 , H04L25/067
摘要： A receiver in a multiple-input multiple-output (MIMO) system is provided. The receiver includes a channel estimator estimating a channel based on a receiving signal, a minimum mean square error (MMSE) based reciprocal log likelihood ratio (R-LLR) calculator connected with the channel estimator and calculating an R-LLR based on the receiving signal and the estimated channel, and a channel decoder connected with the MMSE based R-LLR calculator and decoding the channel and the receiving signal based on the calculated R-LLR, wherein the R-LLR is calculated based on the reciprocity.
摘要翻译：提供了一种多输入多输出（MIMO）系统中的接收机。接收机包括基于接收信号估计信道的信道估计器，与信道估计器连接的基于最小均方误差（MMSE）的倒数似然比（R-LLR）计算器，并基于接收信号计算R-LLR 和估计信道，以及与基于MMSE的R-LLR计算器连接的信道解码器，并且基于所计算的R-LLR对信道和接收信号进行解码，其中基于互易性来计算R-LLR。

10. 发明申请

US20130191999A1 INFANT SUPPORT SYSTEM 审中-公开
标题翻译：婴儿支持系统
公开(公告)号：US20130191999A1
公开(公告)日：2013-08-01
申请号：US13751850
申请日：2013-01-28
申请人： Dorraine Theresa Burrell
发明人： Dorraine Theresa Burrell
IPC分类号： A47D13/00
CPC分类号： A47D13/00 , A47D5/006 , A47D13/08 , A47D15/003 , A47L11/28 , H04L1/0054 , H04L1/0071 , H04L25/03286 , H04L27/01 , H04L27/2602
摘要： Systems, apparatus, methods, and articles of manufacture provide for stabilized support of an infant on a user's lap.
摘要翻译：系统，装置，方法和制品提供用户膝盖上的婴儿的稳定支撑。

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