-
1.发明申请SYSTEM AND METHOD FOR SETTING PHASE REFERENCE POINTS IN CONTINUOUS PHASE MODULATION SYSTEMS BY PROVIDING PILOT SYMBOLS AT A LOCATION OTHER THAN THE LOCATION OF THE PHASE REFERENCE POINT 有权用于在连续相位调制系统中设置相位参考点的系统和方法，通过在相位参考点位置以外的位置提供引导符号公开(公告)号：US20080165890A1
公开(公告)日：2008-07-10
申请号：US11620846
申请日：2007-01-08
申请人： KEVIN G. DOBERSTEIN , BRADLEY M. HIBEN , LEI XIAO
发明人： KEVIN G. DOBERSTEIN , BRADLEY M. HIBEN , LEI XIAO
IPC分类号： H04L27/36
CPC分类号： H04L27/2003 , H04L27/2271
摘要： When a sequence of data bits is to be transmitted, the sequence is precoded into data symbols and organized as data frames. For each data frame, a number of phase reference points at predetermined intervals within the data frame are required to allow a receiving device to sufficiently estimate channel effects on the transmitted data frame. If a data frame has a field where inclusion of pilot symbols is undesirable, and if a phase reference point is required within that field, a set of pilot symbols associated with that phase reference point is generated and inserted into the data frame prior to the beginning of the field. The values for each of the pilot symbols in the set are chosen so as to force the phase reference point to a desired phase state.
摘要翻译： 当要发送数据比特序列时，序列被预编码成数据符号并被组织成数据帧。 对于每个数据帧，需要在数据帧内以预定间隔的多个相位参考点，以允许接收装置充分地估计对发送的数据帧的信道效应。 如果数据帧具有不合适的导频符号的包含字段，并且如果在该字段内需要相位参考点，则生成与该相位参考点相关联的一组导频符号并将其插入数据帧之前 领域的。 选择集合中的每个导频符号的值，以便将相位参考点强制到期望的相位状态。
-
2.发明申请METHOD AND DEVICE FOR ASSIGNING TRAFFIC CHANNELS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开用于在无线通信系统中分配交通信道的方法和设备公开(公告)号：US20100157959A1
公开(公告)日：2010-06-24
申请号：US12340654
申请日：2008-12-20
IPC分类号： H04B7/212
CPC分类号： H04W72/04 , H04W72/0413 , H04W72/0446 , H04W84/08
摘要： A device uses a method for assigning a traffic channel in a wireless communication system. The method includes: receiving on a control channel a first message that includes a request for a traffic channel having a traffic channel structure; determining a delay in arrival of the first message; comparing the delay in arrival to a threshold value for the traffic channel structure; and when the delay in arrival exceeds the threshold value, assigning an available traffic channel in response to the request, wherein the traffic channel has a delay tolerance that exceeds the delay in arrival.
摘要翻译： 设备使用在无线通信系统中分配业务信道的方法。 该方法包括：在控制信道上接收包括对具有业务信道结构的业务信道的请求的第一消息; 确定第一消息的到达延迟; 将到达延迟与业务信道结构的阈值进行比较; 并且当到达延迟超过阈值时，响应于该请求分配可用业务信道，其中业务信道具有超过到达延迟的延迟容限。
-
公开(公告)号：US20110075774A1
公开(公告)日：2011-03-31
申请号：US12570115
申请日：2009-09-30
IPC分类号： H04B1/10
CPC分类号： H04B1/1027 , H04L7/04 , H04L25/03006
摘要： A signal is provided to each of nominal, higher and lower primary filters in a receiver. The nominal, higher and lower primary filters have different center frequencies and a bandwidth B1 and bandwidths B2, respectively and a bandwidth offset B0, with B2=B1+B0. Signal recovery is performed on the output of each primary filter to obtain recovered signals and error values each associated with one of the primary filters. Each error value is provided to a secondary and tertiary filter, to generate a signal criterion, and whose output is measured to generate a quality metric, respectively, associated with each recovered signal. The recovered signal associated with the nominal primary filter and any other recovered signal having an associated signal criterion below a threshold value is selected and the selected recovered signal which has the lowest associated quality metric is chosen.
摘要翻译： 信号被提供给接收机中的每个标称，较高和较低的主滤波器。 标称，较高和较低的主滤波器分别具有不同的中心频率和带宽B1和带宽B2，带宽偏移量为B0，B2 = B1 + B0。 对每个主滤波器的输出执行信号恢复，以获得每个与主滤波器之一相关联的恢复信号和误差值。 将每个误差值提供给次级和第三级滤波器，以产生信号标准，并且测量其输出以分别产生与每个恢复的信号相关联的质量度量。 选择与标称主滤波器相关联的恢复信号和具有低于阈值的相关联信号准则的任何其它恢复信号，并且选择具有最低关联质量度量的所选恢复信号。
-
公开(公告)号：US20110075771A1
公开(公告)日：2011-03-31
申请号：US12570131
申请日：2009-09-30
IPC分类号： H04L27/06
CPC分类号： H04W56/0035 , H04B1/1027 , H04W56/005
摘要： A method of reducing error in transmissions received in a receiver is provided. A transmission containing a synchronization signal is inputted through a first filter to a synchronization correlator, to generate a timing error of the synchronization signal. An amount of delay of the synchronization signal sufficient to reduce the timing error is determined. The transmission is delayed by the amount of delay by being passed through at least a second, variable filter whose delay is determined using a stochastic gradient algorithm. The synchronization correlator may also generate a deviation error of the synchronization signal and determine an amount of deviation correction sufficient to reduce the deviation error as well as generating a frequency error of the synchronization signal and determining an amount of frequency correction sufficient to reduce the frequency error.
摘要翻译： 提供了一种减少接收机中接收的传输错误的方法。 包含同步信号的传输通过第一滤波器输入到同步相关器，以产生同步信号的定时误差。 确定足以减少定时误差的同步信号的延迟量。 传输通过传递至少第二个可变滤波器而被延迟延迟量，其可以使用随机梯度算法确定延迟。 同步相关器还可以产生同步信号的偏差误差，并且确定足以减少偏差误差的偏差校正量以及产生同步信号的频率误差并确定足以减小频率误差的频率校正量 。
-
5.发明申请METHOD AND DEVICE FOR ENHANCING SIGNAL DETECTION IN A FREQUENCY SELECTIVE FADING CHANNEL 有权用于增加频率选择性渐变通道中信号检测的方法和装置公开(公告)号：US20080273633A1
公开(公告)日：2008-11-06
申请号：US11743848
申请日：2007-05-03
IPC分类号： H04L27/06
CPC分类号： H04L27/2647
摘要： A method and system are provided for enhanced signal detection in a frequency selective fading channel. Improved signal detection is realized by replacing single matched filters with multiple matched filters. The single matched filter spectrum is partitioned by frequency into M matched filter groups, where M is a positive integer greater than one. The filter bandwidth of each of the M matched filters is less than the bandwidth of the single matched filter from which they are derived. The M matched filters are provided to filter in parallel fashion the input signal into M sub-spectrums of the signal. The input signal is filtered through the M matched filters and also sent to the energy detector. The matched filter outputs are combined and the received signal is detected using the combined output and the energy in the received signal.
摘要翻译： 提供了一种在频率选择性衰落信道中增强信号检测的方法和系统。 通过用多个匹配滤波器替换单个匹配滤波器来实现改进的信号检测。 单个匹配滤波器频谱被频率划分为M个匹配滤波器组，其中M是大于1的正整数。 每个M匹配滤波器的滤波器带宽小于从中导出它们的单个匹配滤波器的带宽。 M匹配滤波器被提供以将输入信号并行地滤波成信号的M个子频谱。 输入信号通过M匹配滤波器滤波，并发送到能量检测器。 匹配的滤波器输出被组合，并且使用组合的输出和接收信号中的能量来检测接收的信号。
-
6.发明申请METHOD AND APPARATUS FOR REDUCING SIGNALING OVERHEAD IN A COMMUNICATION SYSTEM USING HYBRID AUTOMATIC REPEAT REQUEST 有权使用混合自动重复请求在通信系统中减少信号超帧的方法和装置公开(公告)号：US20080320357A1
公开(公告)日：2008-12-25
申请号：US11765634
申请日：2007-06-20
IPC分类号： H04L1/18
CPC分类号： H04L1/1819 , H04L1/0003 , H04L1/1642
摘要： A transmitting unit combines a slot identifier (SI) and a block identifier (BI) in each header that is transmitted with the data to allow a receiving unit to associate previously received data blocks with retransmissions, or retries, of the same respective data blocks in order to perform bit error detection in accordance with a hybrid or selective ARQ protocol. The receiving unit uses the SI and BI contained in the MHBKs to determine a correspondence between a retried data and a previously transmitted data block.
摘要翻译： 发送单元在与数据一起发送的每个报头中组合时隙标识符（SI）和块标识符（BI），以允许接收单元将先前接收的数据块与相同的各个数据块的重传或重试相关联 按照混合或选择性ARQ协议执行位错误检测。 接收单元使用包含在MHBK中的SI和BI来确定重试数据和先前发送的数据块之间的对应关系。
-
7.发明申请METHOD AND APPARATUS FOR MITIGATING INTERFERENCE IN MULTICARRIER MODULATION SYSTEMS 审中-公开用于减轻多媒体调制系统干扰的方法和装置公开(公告)号：US20080239936A1
公开(公告)日：2008-10-02
申请号：US11692305
申请日：2007-03-28
申请人： KEVIN G. DOBERSTEIN
发明人： KEVIN G. DOBERSTEIN
IPC分类号： H04J1/12
CPC分类号： H04L27/2647 , H04L1/0055 , H04L25/0232 , H04L25/067
摘要： A method and apparatus for mitigating the effect of adjacent channel interference in a multicarrier modulation system is provided. The method includes receiving an encoded signal over multiple subcarriers at different frequencies. The signal includes a plurality of pilot symbols and data symbols modulated onto the subcarriers using a modulation technique. Further, the method includes: grouping the subcarriers into multiple sets of subcarriers based on their frequencies, wherein each set includes one or more subcarriers; estimating, for each set of subcarriers, a noise value associated with at least a portion of the pilot symbols received over subcarriers included in the set; and generating a decoded signal comprising a plurality of decoded data bits, using the estimated noise values.
摘要翻译： 提供了一种用于减轻多载波调制系统中相邻信道干扰的影响的方法和装置。 该方法包括在不同频率的多个子载波上接收经编码的信号。 信号包括使用调制技术调制到子载波上的多个导频符号和数据符号。 此外，该方法包括：基于它们的频率将子载波分组为多个子载波集合，其中每个集合包括一个或多个子载波; 对于每组子载波估计与通过包括在所述组中的子载波接收的所述导频符号的至少一部分相关联的噪声值; 以及使用所估计的噪声值来生成包括多个解码数据比特的解码信号。
-
公开(公告)号：US20080005649A1
公开(公告)日：2008-01-03
申请号：US11427612
申请日：2006-06-29
IPC分类号： H03M13/00
CPC分类号： H03M13/2963 , H03M13/152 , H03M13/19 , H03M13/2909 , H03M13/2918 , H03M13/2975
摘要： The present invention relates to a method for analyzing a decoded digital signal stream. The method comprises decoding an encoded digital signal stream to obtain a decoded digital stream and terminating the decoding operation in an N dimension, wherein N is an integer greater than one. The method further comprises calculating one or more syndromes in a dimension not comprising the N dimension of the decoded digital signal stream. At least one invalid syndrome is then detected from the one or more calculated syndromes. In one embodiment, an error is reported in the decoded digital stream based upon detecting at least one invalid syndrome.
摘要翻译： 本发明涉及一种分析解码数字信号流的方法。 该方法包括解码编码的数字信号流以获得解码的数字流，并且以N维度终止解码操作，其中N是大于1的整数。 该方法还包括在不包括解码的数字信号流的N维度的维度中计算一个或多个综合征。 然后从一个或多个计算的综合征检测至少一个无效综合征。 在一个实施例中，基于检测至少一个无效综合征，在解码的数字流中报告错误。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.018 秒)
