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131.发明申请公开(公告)号：US20130077670A1
公开(公告)日：2013-03-28
申请号：US13333478
申请日：2011-12-21
申请人： Yi-Pin Eric Wang , Cagatay Konuskan , Gregory Bottomley , Jung-Fu Cheng , Niklas Johansson , Ning He , Stephen Grant
发明人： Yi-Pin Eric Wang , Cagatay Konuskan , Gregory Bottomley , Jung-Fu Cheng , Niklas Johansson , Ning He , Stephen Grant
CPC分类号： H04W72/1278 , H04B1/71075 , H04B1/712 , H04W72/082
摘要： In a receive node of a wireless network, an iterative multi-user multi-stage interference cancellation receiver is used. After each stage of interference cancellation, interference characteristics change. An adaptive strategy is used in which after each stage of interference cancellation, impairment covariance is parametrically updated and combining weights of the receiver are adapted to reflect the updated impairment covariance.
摘要翻译： 在无线网络的接收节点中，使用迭代多用户多级干扰消除接收机。 在干扰消除的每个阶段之后，干扰特性发生变化。 使用自适应策略，其中在干扰消除的每个阶段之后，对损伤协方差进行参数更新，并且接收机的组合权重被适配以反映更新的损害协方差。
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132.发明授权公开(公告)号：US08396168B2
公开(公告)日：2013-03-12
申请号：US12760839
申请日：2010-04-15
IPC分类号： H04L27/00
CPC分类号： H04L27/38 , H04L25/0242 , H04L25/03229 , H04L27/3416 , H04L2025/03388 , H04L2025/03414
摘要： In a receiver with a multi-stage equalizer, such as an SLI equalizer, cumulative symbol estimates generated in one or more early stages of the equalizer are used as effective pilot symbols to improve channel estimation for later stages.
摘要翻译： 在具有多级均衡器（诸如SLI均衡器）的接收机中，在均衡器的一个或多个早期阶段中生成的累积符号估计值被用作有效的导频符号，以改进稍后阶段的信道估计。
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133.发明申请公开(公告)号：US20120300829A1
公开(公告)日：2012-11-29
申请号：US13117583
申请日：2011-05-27
IPC分类号： H04L27/01
CPC分类号： H04L25/03171 , H04L25/03012 , H04L2025/03726
摘要： At a node of a wireless network, equalization operations performed on signals received from a transmitter are adaptively switched to be equalized by an iterative turbo receiver or a linear receiver. A theoretical expression of a post-equalization SINR of a capacity-achieving receiver is used to estimate the post-equalization SINR performance of the turbo receiver. The estimated post-equalization SINR performance is then used as a basis to determine whether the received signal is to be equalized by the turbo receiver or the linear receiver.
摘要翻译： 在无线网络的节点处，对从发射机接收的信号执行的均衡操作被自适应地切换以由迭代turbo接收机或线性接收机进行均衡。 使用容量实现接收机的后均衡SINR的理论表达式来估计turbo接收机的均衡后SINR性能。 然后，将估计的均衡后SINR性能用作基础，以确定接收到的信号是否被turbo接收机或线性接收机均衡。
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134.发明申请OPTIMAL ERROR PROTECTION CODING FOR MIMO ACK/NACK/PRE/POST INFORMATION 有权MIMO ACK / NACK / PRE / POST信息的最佳错误保护编码公开(公告)号：US20120198299A1
公开(公告)日：2012-08-02
申请号：US13443039
申请日：2012-04-10
CPC分类号： H04L1/1607 , H04L1/004 , H04L1/0073 , H04L1/1812 , H04L2001/125
摘要： Error protection based on a nonlinear code set may be used in a multiple input multiple output (MIMO) radio communications system. A decoder decodes received MIMO data streams and generates an automatic repeat request (ARQ) message for data units received for the MIMO data streams for each transmission time interval. An encoder codes the ARQ message using a code word from a nonlinear code set. At the data transmitter, which transmits one or more data units in transmission time intervals from two or more MIMO data streams, the ARQ message associated with the transmitted data units is decoded using a code word from the nonlinear code set.
摘要翻译： 可以在多输入多输出（MIMO）无线电通信系统中使用基于非线性码集的错误保护。 解码器解码所接收的MIMO数据流，并为每个传输时间间隔为MIMO数据流接收的数据单元生成自动重复请求（ARQ）消息。 编码器使用来自非线性码集的码字对ARQ消息进行编码。 在从两个或多个MIMO数据流以传输时间间隔发送一个或多个数据单元的数据发射机处，使用来自非线性码集的码字来解码与发送的数据单元相关联的ARQ消息。
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公开(公告)号：US20100260231A1
公开(公告)日：2010-10-14
申请号：US12421059
申请日：2009-04-09
申请人： Markus Ringstom , Par Moqvist , Yi-Pin Eric Wang
发明人： Markus Ringstom , Par Moqvist , Yi-Pin Eric Wang
IPC分类号： H04B1/69
CPC分类号： H04B1/7103 , H04B2201/70705 , H04B2201/70707 , H04W24/00
摘要： The transport format (TF) of a signal may be blindly detected from a reduced set of TF hypotheses. In an example embodiment, a method for the blind detection of a TF of a signal includes filtering a set of transport format hypotheses to identify a reduced set of TF hypotheses using one or more filtering schemes. From the reduced set of TF hypotheses, a TF that is associated with an interfering signal is detected. The TF includes a modulation and a spreading factor for the interfering signal. It may also include a number of channelization codes. In an example implementation, when an interfering signal is to be canceled, symbols carried by the signal are detected using the detected TF. Example filtering schemes include filtering based on system design/operation, filtering based on known configuration information, filtering based on an expected level of interference contribution, and so forth.
摘要翻译： 信号的传输格式（TF）可以从减少的一组TF假设中盲目地检测出来。 在示例实施例中，用于盲检测信号的TF的方法包括：使用一个或多个过滤方案来过滤一组传输格式假设以识别减少的TF假设集合。 从减少的TF假设集合中，检测到与干扰信号相关联的TF。 TF包括用于干扰信号的调制和扩频因子。 它还可以包括多个信道化码。 在示例实现中，当要消除干扰信号时，使用检测到的TF检测由信号携带的符号。 示例性过滤方案包括基于系统设计/操作的过滤，基于已知配置信息的过滤，基于预期干扰贡献水平的过滤等等。
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公开(公告)号：US07787522B2
公开(公告)日：2010-08-31
申请号：US10412504
申请日：2003-04-11
IPC分类号： H04B1/00
CPC分类号： H04B1/7105 , H04B1/709 , H04B1/712 , H04L25/03171 , H04L25/03331
摘要： A CDMA communication system uses a RAKE receiver, a code correlator and a multi-code joint detector to jointly detect symbols in two or more received signals contained within a composite signal. The RAKE receiver separates the composite signal into two or more RAKE output signals by despreading the composite signal using selected spreading codes. The multi-code joint detector jointly detects the symbols in the received signals using the RAKE receiver output signals, cross-correlations between the spreading codes generated by the code correlator, and RAKE combining weights based on a noise covariance matrix. The multi-code joint detector also includes a trellis that represents possible states and state transitions and a branch metric calculator for calculating branch metrics associated with the state transitions based on the RAKE receiver output signals and the cross-correlations between the spreading codes.
摘要翻译： CDMA通信系统使用RAKE接收机，码相关器和多码联合检测器联合检测复合信号中包含的两个或多个接收信号中的符号。 RAKE接收机通过使用选择的扩展码解扩复合信号，将复合信号分离成两个或更多个RAKE输出信号。 多码联合检测器使用RAKE接收机输出信号，由码相关器产生的扩展码之间的互相关和基于噪声协方差矩阵的RAKE组合权重联合检测接收信号中的符号。 多码联合检测器还包括表示可能的状态和状态转换的网格，以及用于基于RAKE接收机输出信号和扩展码之间的互相关来计算与状态转换相关联的分支度量的分支度量计算器。
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137.发明授权Method and apparatus for generating channel quality information for wireless communication 有权用于生成用于无线通信的信道质量信息的方法和装置公开(公告)号：US07773951B2
公开(公告)日：2010-08-10
申请号：US11438921
申请日：2006-05-23
CPC分类号： H04L1/0019 , H04B2201/709727 , H04L1/0002 , H04L1/0026 , H04L1/20 , H04L25/0202 , H04L25/0222 , H04L27/2647
摘要： A method and apparatus for generating channel quality information, such as may be used for transmit link adaptation, provide different operating modes, such as a first mode that may be used when propagation channel estimates are not reliable, and a second mode that may be used when the propagation channel estimates are reliable. In one or more embodiments, channel quality information is generated using receiver performance information that characterizes receiver performance in terms of a defined channel quality metric, e.g., supported data rates, for different values of receiver input signal quality over a range of propagation channel realizations. Channel quality information can be generated by selecting channel quality metrics according to receiver input signal quality and a desired probability of meeting a defined performance requirement over a range of propagation channel realizations, or by selecting channel quality metrics according to receiver input signal quality and particularized propagation channel realizations.
摘要翻译： 用于产生信道质量信息的方法和装置，例如可以用于发送链路自适应，提供不同的操作模式，例如当传播信道估计不可靠时可以使用的第一模式，以及可以使用的第二模式 当传播信道估计是可靠的。 在一个或多个实施例中，使用接收机性能信息来生成信道质量信息，所述接收机性能信息根据定义的信道质量度量（例如，支持的数据速率），在传播信道实现范围内针对接收机输入信号质量的不同值来表征接收机性能。 可以通过根据接收机输入信号质量选择信道质量度量并且在传播信道实现范围内满足定义的性能要求的期望概率，或者通过根据接收机输入信号质量和特定传播选择信道质量度量来生成信道质量信息 渠道实现。
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公开(公告)号：US20100023845A1
公开(公告)日：2010-01-28
申请号：US12524801
申请日：2008-01-29
申请人： Jung-Fu Cheng , Yi-Pin Eric Wang
发明人： Jung-Fu Cheng , Yi-Pin Eric Wang
CPC分类号： H04L1/0011 , H03M13/095 , H03M13/11 , H04L1/003 , H04L1/0083 , H04L1/0084
摘要： Teachings presented herein provide a method (100) and apparatus (10) for processing input information bits (16) for coding using a code (20), such that the length of the information word (14) formed from the input information bits (16) matches a fixed information word length defined by the code 20. In at least one embodiment, a coding circuit (10) receives input information bits (16) and adds error protection bits (26) as needed, to make the information word length match the fixed information word length. The method (100) and apparatus (10) contemplate generating the error protection bits (26) by sub-coding a subset (28) of the input information bits (26) (e.g., parity bit generation), thereby providing extra protection for that subset (28). These teachings allow the same code (20) to be used for coding feedback or other information, where the amount of information to be coded varies as a function of operating modes.
摘要翻译： 本文提出的教学提供了一种用于处理用于使用代码（20）进行编码的输入信息位（16）的方法（100）和装置（10），使得从输入信息位（16）形成的信息字（14）的长度 ）匹配由代码20定义的固定信息字长度。在至少一个实施例中，编码电路（10）根据需要接收输入信息位（16）并添加错误保护位（26），以使信息字长度匹配 固定信息字长。 方法（100）和装置（10）考虑通过对输入信息比特（26）的子集（28）进行子编码（例如，奇偶校验位生成）来生成错误保护比特（26），从而为 子集（28）。 这些教导允许将相同的代码（20）用于编码反馈或其他信息，其中待编码的信息量作为操作模式的函数变化。
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公开(公告)号：US07221958B2
公开(公告)日：2007-05-22
申请号：US10021378
申请日：2001-12-12
IPC分类号： H04M1/00
CPC分类号： H03H17/0225
摘要： A delay-and-add filtering technique positions one or more filter nulls substantially at points of narrowband interference in a relatively wideband received signal. For example, the technique is useful in removing adjacent channel interference in a received W-CDMA signal caused GSM radio transmissions.
摘要翻译： 延迟和加法滤波技术基本上在相对宽带接收信号中的窄带干扰点处定位一个或多个滤波器零点。 例如，该技术在去除所接收到的W-CDMA信号造成的GSM无线电传输中的相邻信道干扰方面是有用的。
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公开(公告)号：US06760361B2
公开(公告)日：2004-07-06
申请号：US09742714
申请日：2000-12-20
IPC分类号： H04L2732
CPC分类号： H04B1/7083 , H04J13/107 , H04L7/043
摘要： A special coding scheme is disclosed for more effectively acquiring a long code and frame timing during a cell search in a CDMA communications system. A code set of length M Q-ary code words including symbols from a set of Q short codes is defined with certain properties. The primary property to be satisfied is that no cyclic shift of a code word yields a valid code word. The other properties to be satisfied are that there is a one-to-one mapping between a long code message and a valid code word, and a decoder should be able to find both the random shift (thereby implicitly finding the frame timing) and the transmitted code word (i.e., its associated long code indication message) in the presence of interference and noise, with some degree of accuracy and reasonable complexity.
摘要翻译： 公开了一种特殊的编码方案，用于在CDMA通信系统中的小区搜索期间更有效地获取长码和帧定时。 使用某些属性来定义包括来自一组Q短码的符号的长度为M个Q字节码字的码组。 要满足的主要特征是代码字的循环移位不产生有效的代码字。 要满足的其他属性是在长码消息和有效码字之间存在一对一的映射，并且解码器应该能够找到随机移位（从而隐含地找到帧定时）和 在存在干扰和噪声的情况下，传输码字（即其相关联的长码指示消息）具有一定程度的准确性和合理的复杂度。
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