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91. 发明授权

US07272190B2 Method and apparatus for determining channel quality and performing adaptive modulation/coding within a multicarrier communication system 有权
标题翻译：用于确定信道质量并在多载波通信系统内执行自适应调制/编码的方法和装置
公开(公告)号：US07272190B2
公开(公告)日：2007-09-18
申请号：US10886476
申请日：2004-07-07
申请人： Yufei W. Blankenship , Brian K. Classon , Philippe J. Sartori
发明人： Yufei W. Blankenship , Brian K. Classon , Philippe J. Sartori
IPC分类号： H04K1/10 , H04J11/00
CPC分类号： H04L5/0007 , H04L1/0003 , H04L1/0009 , H04L1/0019 , H04L5/0016 , H04L5/0044 , H04L5/006 , H04L5/0064 , H04L5/0085 , H04L27/0008 , H04L27/0012 , H04L27/34 , Y02D50/10
摘要： In a multi-carrier communication system employing adaptive modulation and coding, a receiver feeds back channel quality information for a “binned” group of subcarriers instead of sending an individual quality report for each subcarrier. A transmitter will utilize the channel quality information for the bin to determine a set of γeff values corresponding to a set of modulation and coding scheme candidates, where γeff is an effective SNR that would yield a same FER in an AWGN channel. The transmitter utilizes the set of γeff values to aid in determining a modulation and coding scheme, and determine a single modulation and coding scheme for all subcarriers within the channel.
摘要翻译：在采用自适应调制和编码的多载波通信系统中，接收机反馈用于“分组的”子载波组的信道质量信息，而不是为每个子载波发送单独的质量报告。发射机将利用该信道的信道质量信息来确定与一组调制和编码方案候选对应的一组伽马效应值，其中伽马效应是有效的在AWGN信道中产生相同FER的SNR。发射机利用一组伽马效应值来帮助确定调制和编码方案，并且确定信道内所有子载波的单个调制和编码方案。

92. 发明授权

US07260762B2 Decoder performance for block product codes 有权
标题翻译：块产品代码的解码器性能
公开(公告)号：US07260762B2
公开(公告)日：2007-08-21
申请号：US10899337
申请日：2004-07-26
申请人： Vipul A. Desai , Yufei W. Blankenship , Brian K. Classon
发明人： Vipul A. Desai , Yufei W. Blankenship , Brian K. Classon
IPC分类号： H03M13/03
CPC分类号： H03M13/2963 , H03M13/453
摘要： A method of improving block turbo decoder performance that comprises receiving soft input information corresponding to a first set of constituent codes of a block product code, scaling soft extrinsic information from a second set of constituent codes of the block product code, processing the scaled soft extrinsic information and the soft input information to produce soft output information suitable for a soft-input soft-output decoder, and performing one or more of: modifying encoded bit positions of the block product code, modifying decoded bit positions of a the block product code, permuting decoding parameters of the block product code to effect a preferred decoding order, detecting cases where a number of test patterns is insufficient to decode the soft output information and thereafter providing a different number of test patterns suitable for decoding the soft output information, and adapting the number of test patterns in the soft-input soft-output decoder.
摘要翻译：一种改进块turbo解码器性能的方法，包括接收对应于块产品代码的第一组组成码的软输入信息，从块产品代码的第二组组成码缩放软外部信息，处理缩放的软外在信息和软输入信息以产生适合于软输入软输出解码器的软输出信息，并且执行以下中的一个或多个：修改块产品代码的编码比特位置，修改块产品代码的解码比特位置，置换块产品代码的解码参数以实现优选的解码顺序，检测多个测试模式不足以解码软输出信息的情况，然后提供适合于解码软输出信息的不同数量的测试模式，并适配软输入软输出解码器中测试模式的数量。

93. 发明授权

US07239705B2 Apparatus and method for broadcast services transmission and reception 有权
标题翻译：广播业务传输和接收的装置和方法
公开(公告)号：US07239705B2
公开(公告)日：2007-07-03
申请号：US10732757
申请日：2003-12-10
申请人： Sean S. Kelley , William P. Alberth, Jr. , Brian K. Classon , Dah-Lain Almon Tang
发明人： Sean S. Kelley , William P. Alberth, Jr. , Brian K. Classon , Dah-Lain Almon Tang
IPC分类号： H04N7/167
CPC分类号： H04N21/41407 , H04N7/162 , H04N7/1675 , H04N21/26606 , H04N21/47202 , H04N21/6131 , H04N21/6405 , H04N21/6581 , H04N21/8549
摘要： A method and apparatus for broadcast services transmission and reception. Reception of a broadcast multicast transmission is requested. Preliminary short time updated key information is transmitted or received prior to transmitting or receiving a broadcast subscription key for the requested broadcast services transmission. An encrypted broadcast services transmission is transmitted or received. The encrypted broadcast services transmission is encrypted or decrypted using the preliminary short time updated key information.
摘要翻译：一种用于广播服务发送和接收的方法和装置。要求接收广播多播传输。在发送或接收所请求的广播服务传输的广播订阅密钥之前，发送或接收初步的短时更新密钥信息。发送或接收加密的广播业务传输。使用初步的短时更新密钥信息对加密的广播服务传输进行加密或解密。

94. 发明授权

US07096401B2 Multi-mode hybrid ARQ scheme 有权
公开(公告)号：US07096401B2
公开(公告)日：2006-08-22
申请号：US10988897
申请日：2004-11-15
申请人： Mark C. Cudak , Brian K. Classon
发明人： Mark C. Cudak , Brian K. Classon
IPC分类号： H04L1/18 , H03M13/03
CPC分类号： H04L1/1816 , H04L1/0009 , H04L1/1819 , H04L1/1825 , H04L1/1835 , H04L1/1896
摘要： A method and apparatus for performing H-ARQ transmission is described herein. Bits received on a first transmission are stored and combined with the bits received on later transmissions thereby increasing the likelihood of a correct decoding on later transmissions. Additionally, a plurality of coding schemes (e.g., Convolutional Codes, Block Turbo Codes, Convolutional Turbo Codes, Low Density Party Check Codes, . . . , etc.) are utilized, with an information element being reserved to signal what form of H-ARQ is being utilized.

95. 发明授权

US06934275B1 Apparatus and method for providing separate forward dedicated and shared control channels in a communications system 有权
标题翻译：在通信系统中提供单独的前向专用和共享控制信道的装置和方法
公开(公告)号：US06934275B1
公开(公告)日：2005-08-23
申请号：US09703775
申请日：2000-11-01
申请人： Robert T. Love , Brian K. Classon , Amitava Ghosh , Louay A. Jalloul , Mark C. Cudak
发明人： Robert T. Love , Brian K. Classon , Amitava Ghosh , Louay A. Jalloul , Mark C. Cudak
IPC分类号： H04B7/26 , H04J11/00 , H04J13/00 , H04J13/18 , H04W48/12 , H04W72/14 , H04B7/216
CPC分类号： H04W48/12 , H04B7/2637 , H04J13/0048 , H04J13/18 , H04W72/14
摘要： Separate forward dedicated and shared control channels are provided in a spread-spectrum communication. The forward dedicated control channel is used to communicate persistent control information and point to the shared control channel when further intermittent control information concerning transmission of data to a mobile station needs to be communicated. The use of a dedicated control channel for only necessary persistent control information, while only pointing to a shared control channel when it is needed, affords more efficient utilization of system resources.
摘要翻译：在扩频通信中提供分离的前向专用和共享控制信道。需要传送关于向移动台传送数据的进一步间歇控制信息时，前向专用控制信道用于通信持久控制信息并指向共享控制信道。仅在必要的持续控制信息使用专用控制信道时，仅在需要时指向共享控制信道才能更有效地利用系统资源。

96. 发明授权

US06901117B1 Soft output decoder for convolutional codes 有权
标题翻译：用于卷积码的软输出解码器
公开(公告)号：US06901117B1
公开(公告)日：2005-05-31
申请号：US09501922
申请日：2000-02-10
申请人： Brian K. Classon , Terry M. Schaffner
发明人： Brian K. Classon , Terry M. Schaffner
IPC分类号： H03M13/23 , H03M13/41 , H03M13/45 , H04D1/00
CPC分类号： H03M13/3972 , H03M13/3723 , H03M13/3905
摘要： Decoding signals represented by a trellis of block length N divided into windows of length L includes a step of decoding a forward recursion from a point P that is before the beginning of a window up to the beginning of the window. P is chosen at a sufficient distance from the beginning of the window such that forward recursion determines a known state metric at the beginning of the window. A next step includes decoding the window using forward recursion from the known state at the beginning of the window up to the end of the window to define a set of known forward recursion state metrics which are stored. A next step includes decoding using backward recursion starting from a known state at the end of the window and moving backward. A next step includes calculating a soft output at each stage of the backward recursion using the stored forward recursion state metrics, and branch metrics at each stage, and outputting the soft output for that stage in a LIFO format.
摘要翻译：将由划分成长度L的窗口的块长度N的网格表示的信号解码包括从窗口开始直到窗口开始之前的点P解码向前递归的步骤。 P选择距离窗口开始的足够的距离，使得正向递归确定窗口开始处的已知状态度量。下一个步骤包括使用从窗口的开始到窗口结束的已知状态的正向递归来解码窗口，以定义存储的一组已知的向前递归状态度量。下一步包括使用从窗口末端的已知状态开始并向后移动的反向递归解码。下一步包括使用存储的前向递归状态度量和每个阶段的分支度量来计算在逆向递归的每个阶段的软输出，并以LIFO格式输出该阶段的软输出。

97. 发明授权

US06366601B1 Variable rate spread spectrum communication method and apparatus 有权
标题翻译：可变速率扩频通信方法及装置
公开(公告)号：US06366601B1
公开(公告)日：2002-04-02
申请号：US09442367
申请日：1999-11-17
申请人： Amitava Ghosh , Brian K. Classon , Mark C. Cudak , Louay Jalloul
发明人： Amitava Ghosh , Brian K. Classon , Mark C. Cudak , Louay Jalloul
IPC分类号： H04L2730
CPC分类号： H04L1/0059 , H04B7/264 , H04B2201/70703 , H04L1/0003
摘要： A communication system (100) provides selecting a first modulation-coding scheme (111) based on a quality indicator of a communication between a source user and a first destination user, determining a first possible number of data bits (201) that can be modulated and encoded according to selected modulation-coding scheme (111) and spread according to one spreading code of a plurality of spreading codes (108-1 through 108-k) which results in fitting in a predetermined time frame, determining a first number of data bits (102) to be transmitted from the source user to the first destination user, determining a first load level based on comparing first number of data bits (102) and first possible number of data bits (201), and, if the first load level is unequal to a whole number, rounding to a next first whole number, selecting a first number of plurality of spreading codes (108-1 through 108-k) based on the first whole number of load level for spread coding of first number of data bits (102) after being modulated and coded according to selected modulation-coding scheme (111).
摘要翻译：通信系统（100）提供基于源用户和第一目的用户之间的通信的质量指示符来选择第一调制编码方案（111），确定可调制的数据比特（201）的第一可能数量并根据所选择的调制编码方案（111）进行编码，并根据多个扩展码（108-1至108-k）中的一个扩展码进行扩展，这导致在预定时间帧内拟合，确定第一数量的数据要从源用户发送到第一目的用户的比特（102），基于比较第一数量比特（102）和第一可能数量的数据比特（201）来确定第一负载水平，以及如果第一负载电平不等于整数，四舍五入到下一个第一整数，基于第一数量的扩展编码的第一整数负载电平来选择第一数量的扩展码（108-1至108-k）数据位（1 02），根据选择的调制编码方案（111）进行调制编码。

98. 发明授权

US06275488B1 Variable rate spread spectrum communication method and apparatus 有权
标题翻译：多通道停止和等待ARQ通信方法和装置
公开(公告)号：US06275488B1
公开(公告)日：2001-08-14
申请号：US09442250
申请日：1999-11-17
申请人： Mark C. Cudak , Brian K. Classon , Louay Jalloul , Amitava Ghosh
发明人： Mark C. Cudak , Brian K. Classon , Louay Jalloul , Amitava Ghosh
IPC分类号： H04B7212
CPC分类号： H04L1/1803 , H04L1/08 , H04L1/189 , H04L2001/0093
摘要： A method in a communication system (100) includes transmitting from a source user (101) a first data packet (111) over a first time frame (121) having a finite time period (131), transmitting from source user (101) a second data packet (112) over a second time frame (122) immediately subsequent to first time frame (121), detecting an acknowledgment of acceptable reception of data packet associated with either first or said second data packets (111 and 112), repeating transmission of first and second data packets (111 and 112) in a sequence of first and second time frames (121 and 122) in a time frame sequence (190) until the detection.
摘要翻译：通信系统（100）中的方法包括：通过具有有限时间段（131）的第一时间帧（121）从源用户（101）发送第一数据分组（111），从源用户（101）a 在第一时间帧（121）之后的第二时间帧（122）上的第二数据分组（112），检测与第一或所述第二数据分组（111和112）相关联的数据分组的可接受接收的确认，重复传输在第一和第二时间帧（121和122）的序列中的时间序列（190）中的第一和第二数据分组（111和112）直到检测。

99. 发明授权

US09184898B2 Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network 有权
标题翻译：地面无线电接入网络中时间，频率和空间信道的信道质量指标
公开(公告)号：US09184898B2
公开(公告)日：2015-11-10
申请号：US11194224
申请日：2005-08-01
申请人： Robert T. Love , Raja S. Bachu , Brian K. Classon , Ravikiran Nory , Kenneth A. Stewart , Yakun Sun
发明人： Robert T. Love , Raja S. Bachu , Brian K. Classon , Ravikiran Nory , Kenneth A. Stewart , Yakun Sun
IPC分类号： H04B1/00 , H04B7/00 , H04L5/00 , H04B7/06 , H04L1/00 , H04W72/08
CPC分类号： H04L1/0026 , H04B7/063 , H04B7/0632 , H04B7/066 , H04B7/0697 , H04L5/0007 , H04L5/0046 , H04L5/0057 , H04L5/0091 , H04W24/10 , H04W72/08
摘要： A wireless communication terminal that communicates on a plurality of sub-carriers divided into a plurality of frequency bands, wherein each frequency band includes at least one sub-carrier. The terminal measures a channel quality indicator (CQI) for a plurality of frequency bands, identifies a subset of frequency bands for which the channel quality indicator has been measured based on a subset criterion, and transmits a report identifying a subset of frequency bands for which a channel quality indicator has been measured or frequency bands not in the subset. In some embodiments, the report also includes a subset CQI value associated with at least the subset of frequency bands identified.
摘要翻译：一种无线通信终端，其在划分为多个频带的多个子载波上通信，其中每个频带包括至少一个子载波。终端测量多个频带的信道质量指示符（CQI），基于子集标准识别已经测量了信道质量指示符的频带的子集，并且发送标识频带子集的子集的报告已经测量了信道质量指示符或不在子集中的频带。在一些实施例中，报告还包括与至少所识别的频带子集相关联的子集CQI值。

100. 发明授权

US08850286B2 Method and apparatus for encoding and decoding data 有权
标题翻译：用于对数据进行编码和解码的方法和装置
公开(公告)号：US08850286B2
公开(公告)日：2014-09-30
申请号：US13089357
申请日：2011-04-19
申请人： Ajit Nimbalker , Yufei Wu Blankenship , Brian K. Classon
发明人： Ajit Nimbalker , Yufei Wu Blankenship , Brian K. Classon
IPC分类号： H03M13/00 , H03M13/27 , H03M13/29
CPC分类号： H03M13/2789 , H03M13/275 , H03M13/2903 , H03M13/2957 , H03M13/2996 , H03M13/6566
摘要： A method and apparatus for selecting interleaver sizes for turbo codes is provided herein. During operation information block of size K is received. An interleaver size K′ is determined that is related to K″, where K″ from a set of sizes; wherein the set of sizes comprise K″=ap×f, pmin≦p≦pmax; fmin≦f≦fmax, wherein a is an integer and f is a continuous integer between fmin and fmax, p takes integer values between pmin and pmax, a>1, pmax>pmin, pmin>1. The information block of size K is padded into an input block of size K′ using filler bits, if needed. Encoding is performed using the original input block and the interleaved input block to obtain a codeword block using a turbo encoder. The codeword block is transmitted through the channel.
摘要翻译：本文提供了一种用于选择turbo码的交织器大小的方法和装置。在操作期间，接收大小为K的信息块。确定与K“相关的交织器尺寸K'，其中K”来自一组尺寸; 其中所述尺寸集合包括K“= ap×f，pmin＆nlE; p＆nlE; pmax; fmin＆nlE; f＆nlE; fmax，其中a是整数，f是fmin和fmax之间的连续整数，p是pmin和pmax之间的整数，a> 1，pmax> pmin，pmin> 1。如果需要，使用填充位将尺寸K的信息块填充到大小为K'的输入块中。使用原始输入块和交错输入块执行编码，以使用turbo编码器来获得码字块。码字块通过信道传输。

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