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11. 发明授权

US08446939B2 Channel quality estimation for MLSE MIMO receiver 有权
标题翻译： MLSE MIMO接收机的信道质量估计
公开(公告)号：US08446939B2
公开(公告)日：2013-05-21
申请号：US12764247
申请日：2010-04-21
申请人： Yi-Pin Eric Wang , Jung-Fu Cheng
发明人： Yi-Pin Eric Wang , Jung-Fu Cheng
IPC分类号： H04B3/46 , H04B17/00 , H04Q1/20
CPC分类号： H04L27/2647 , H04J11/004 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0025 , H04L5/0046 , H04L25/0204 , H04L25/0224 , H04L27/2636
摘要： A receive signal processor jointly detects two or more symbols in a signal-of-interest in the presence of one or more other MIMO signals. The signal-to-interference-plus-noise ratio for each signal-of-interest is determined by computing per-subcarrier signal-to-interference-plus-noise ratios for a plurality of subcarriers allocated to the signals-of-interest, and computing a total signal-to-interference-plus-noise ratio for the subcarriers based on the per-subcarrier signal-to-interference-plus-noise ratios of the subcarriers. A controller determines one or more transmission formats for uplink transmissions based on the signal-to-interference-plus-noise ratios. The process of computing per-subcarrier signal-to-interference-plus-noise ratio reflects the amount of MIMO interference already cancelled or still remaining in the signal arriving at the joint detector.
摘要翻译：接收信号处理器在存在一个或多个其它MIMO信号的情况下联合检测感兴趣的信号中的两个或多个符号。通过对分配给感兴趣信号的多个子载波计算每副载波信号与干扰加噪声比来确定每个感兴趣信号的信号与干扰加噪声比，以及基于子载波的每副载波信号与干扰加噪声比，计算子载波的总信噪比加噪声比。控制器基于信号与干扰加噪声比确定用于上行链路传输的一种或多种传输格式。计算每子载波信号与干扰加噪声比的过程反映已经消除或仍然存在于到达联合检测器的信号中的MIMO干扰的量。

12. 发明授权

US08413021B2 Efficient soft value generation for coded bits in a turbo decoder 有权
标题翻译： turbo解码器中编码比特的有效软值生成
公开(公告)号：US08413021B2
公开(公告)日：2013-04-02
申请号：US13588791
申请日：2012-08-17
申请人： Yi-Pin Eric Wang , Jung-Fu Cheng
发明人： Yi-Pin Eric Wang , Jung-Fu Cheng
IPC分类号： H03M13/00
CPC分类号： H04L1/005
摘要： Techniques for generating soft values for parity bits in a convolutional decoding process are disclosed. An exemplary method comprises, for each of at least one iteration in at least one soft-input soft-output decoder, calculating intermediate probability values for each possible transition between a first plurality of candidate decoder states at a first time and a second plurality of candidate decoder states at a second time. Two or more partial sums are then computed from the intermediate probability values, wherein the partial sums correspond to possible combinations of two or more systematic bits, two or more parity bits, or at least one systematic bit and at least one parity bit. Soft values, such as log-likelihood values, are then estimated for each of at least one systematic bit and at least one parity bit of the received communications data corresponding to the interval between the first and second times, based on the partial sums.
摘要翻译：公开了在卷积解码过程中产生用于奇偶校验位的软值的技术。一种示例性方法包括对于至少一个软输入软输出解码器中的至少一次迭代中的每一个，为第一时间的第一多个候选解码器状态和第二多个候选者之间的每个可能的转换计算中间概率值解码器第二次状态。然后从中间概率值计算两个或多个部分和，其中部分和对应于两个或多个系统位，两个或更多个奇偶校验位或至少一个系统位和至少一个奇偶校验位的可能组合。然后，基于部分和，针对对应于第一和第二时间之间的间隔的接收到的通信数据的至少一个系统位和至少一个奇偶校验位中的每一个估计诸如对数似然值的软值。

13. 发明申请

US20120311398A1 EFFICIENT SOFT VALUE GENERATION FOR CODED BITS IN A TURBO DECODER 有权
标题翻译：涡轮解码器中编码位的有效软值生成
公开(公告)号：US20120311398A1
公开(公告)日：2012-12-06
申请号：US13588791
申请日：2012-08-17
申请人： Yi-Pin Eric Wang , Jung-Fu Cheng
发明人： Yi-Pin Eric Wang , Jung-Fu Cheng
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H04L1/005
摘要： Techniques for generating soft values for parity bits in a convolutional decoding process are disclosed. An exemplary method comprises, for each of at least one iteration in at least one soft-input soft-output decoder, calculating intermediate probability values for each possible transition between a first plurality of candidate decoder states at a first time and a second plurality of candidate decoder states at a second time. Two or more partial sums are then computed from the intermediate probability values, wherein the partial sums correspond to possible combinations of two or more systematic bits, two or more parity bits, or at least one systematic bit and at least one parity bit. Soft values, such as log-likelihood values, are then estimated for each of at least one systematic bit and at least one parity bit of the received communications data corresponding to the interval between the first and second times, based on the partial sums.
摘要翻译：公开了在卷积解码过程中产生用于奇偶校验位的软值的技术。一种示例性方法包括对于至少一个软输入软输出解码器中的至少一次迭代中的每一个，为第一时间的第一多个候选解码器状态和第二多个候选者之间的每个可能的转换计算中间概率值解码器第二次状态。然后从中间概率值计算两个或多个部分和，其中部分和对应于两个或多个系统位，两个或更多个奇偶校验位或至少一个系统位和至少一个奇偶校验位的可能组合。然后，基于部分和，针对对应于第一和第二时间之间的间隔的接收到的通信数据的至少一个系统位和至少一个奇偶校验位中的每一个估计诸如对数似然值的软值。

14. 发明授权

US08249518B2 Network controlled feedback for MIMO systems 有权
标题翻译： MIMO系统的网络控制反馈
公开(公告)号：US08249518B2
公开(公告)日：2012-08-21
申请号：US11254172
申请日：2005-10-19
申请人： Stephen J. Grant , Jung-Fu Cheng , Yi-Pin Eric Wang , Karl J. Molnar , Leonld Krasny
发明人： Stephen J. Grant , Jung-Fu Cheng , Yi-Pin Eric Wang , Karl J. Molnar , Leonld Krasny
IPC分类号： H04B7/00 , H04W72/02
CPC分类号： H04B7/0645 , H04B1/71072 , H04B1/712 , H04B7/04 , H04B7/06 , H04B7/0632 , H04B7/0689 , H04B7/0691 , H04B7/0697 , H04B7/0891 , H04L1/06
摘要： In a selective MIMO system, the mobile station provides channel quality feedback for one or more possible transmission mode. The mobile station provides channel quality feedback for a first mode regardless of channel conditions and determines whether to provide feedback for one or more additional modes based on current channel conditions.
摘要翻译：在选择性MIMO系统中，移动台为一个或多个可能的传输模式提供信道质量反馈。无论频道条件如何，移动台都提供第一模式的信道质量反馈，并根据当前的信道状况确定是否为一个或多个附加模式提供反馈。

15. 发明授权

US07912433B2 Method and apparatus for generating channel quality information for wireless communication 有权
标题翻译：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：US07912433B2
公开(公告)日：2011-03-22
申请号：US12750793
申请日：2010-03-31
申请人： Karl Molnar , Jung-Fu Cheng , Stephen J. Grant , Leonid Krasny , Yi-Pin Eric Wang
发明人： Karl Molnar , Jung-Fu Cheng , Stephen J. Grant , Leonid Krasny , Yi-Pin Eric Wang
IPC分类号： H04B17/00
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。

16. 发明申请

US20100183064A1 Method and Apparatus for Generating Channel Quality Information for Wireless Communication 有权
标题翻译：用于生成无线通信信道质量信息的方法和装置
公开(公告)号：US20100183064A1
公开(公告)日：2010-07-22
申请号：US12750793
申请日：2010-03-31
申请人： Karl James Molnar , Jung-Fu Cheng , Stephen J. Grant , Leonid Krasny , Yi-Pin Eric Wang
发明人： Karl James Molnar , Jung-Fu Cheng , Stephen J. Grant , Leonid Krasny , Yi-Pin Eric Wang
IPC分类号： H04B17/00
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。

17. 发明授权

US07668227B2 Method and apparatus for reducing interference in spread spectrum signals using spreading code cross-correlations 有权
标题翻译：使用扩频码互相关减少扩频信号干扰的方法和装置
公开(公告)号：US07668227B2
公开(公告)日：2010-02-23
申请号：US11443883
申请日：2006-05-31
申请人： Stephen J. Grant , Jung-Fu Cheng , Leonid Krasny , Karl J. Molnar , Yi-Pin Eric Wang
发明人： Stephen J. Grant , Jung-Fu Cheng , Leonid Krasny , Karl J. Molnar , Yi-Pin Eric Wang
IPC分类号： H04B1/00
CPC分类号： H04B1/712 , H04B1/7103 , H04B1/711 , H04B7/04 , H04B2201/709727
摘要： A receiver reduces interference in a received symbol of interest attributable to an interfering symbol using knowledge of the symbol spreading codes. The receiver comprises a plurality of correlators generating despread values for the received symbol of interest and the interfering symbol, and a combiner to combine the despread values using combining weights calculated based on spreading code correlations between spreading codes for the received symbol of interest and the interfering symbol.
摘要翻译：接收机使用符号扩展码的知识来减少归因于干扰符号的接收的感兴趣的符号中的干扰。接收机包括多个相关器，用于产生所接收的感兴趣符号和干扰符号的解扩值，以及组合器，使用基于用于所接收的感兴趣符号的扩展码与干扰信号之间的扩展码相关性计算的组合权重组合去扩展值符号。

18. 发明授权

US09356730B2 Method for adding error protection bits to match codeword length 有权
标题翻译：添加错误保护位以匹配码字长度的方法
公开(公告)号：US09356730B2
公开(公告)日：2016-05-31
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
IPC分类号： H04L1/00 , H03M13/09 , H03M13/11
CPC分类号： H04L1/0011 , H03M13/095 , H03M13/11 , H04L1/003 , H04L1/0083 , H04L1/0084
摘要： Teachings presented herein provide a method and apparatus for processing input information bits for coding using a code, such that the length of the information word formed from the input information bits matches a fixed information word length defined by the code. In at least one embodiment, a coding circuit receives input information bits (and adds error protection bits as needed, to make the information word length match the fixed information word length. The method and apparatus contemplate generating the error protection bits by sub-coding a subset of the input information bits (e.g., parity bit generation), thereby providing extra protection for that subset. These teachings allow the same code 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使用代码进行编码的输入信息位的方法和装置，使得从输入信息位形成的信息字的长度与由代码定义的固定信息字长相匹配。在至少一个实施例中，编码电路接收输入信息比特（并且根据需要添加误差保护比特，以使信息字长度与固定信息字长度匹配），该方法和装置考虑通过对子帧进行子编码来产生错误保护比特输入信息位的子集（例如，奇偶校验位生成），从而为该子集提供额外的保护。这些教导允许将相同的代码用于编码反馈或其他信息，其中待编码的信息量作为函数变化的操作模式。

19. 发明授权

US07773951B2 Method and apparatus for generating channel quality information for wireless communication 有权
标题翻译：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
申请人： Karl James Molnar , Jung-Fu Cheng , Stephen J. Grant , Leonid Krasny , Yi-Pin Eric Wang
发明人： Karl James Molnar , Jung-Fu Cheng , Stephen J. Grant , Leonid Krasny , Yi-Pin Eric Wang
IPC分类号： H04B17/00 , H04B7/00
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。

20. 发明申请

US20100023845A1 Method for Adding Error Protection Bits to Match Codeword Length 有权
标题翻译：添加错误保护位匹配码字长度的方法
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
IPC分类号： H03M13/03 , G06F11/08
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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