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公开(公告)号：US07170884B1
公开(公告)日：2007-01-30
申请号：US09937608
申请日：2000-03-28
IPC分类号： H04J3/06
CPC分类号： H04L27/2613
摘要： For synchronizing one or more receivers (E) to a transmitter (S) within a transmission system, the transmitter (S) inserts a special synchronization train into the data stream. The synchronization train is formed of at least two different symbol sequences (A, B), which are transmitted periodically in alternation.
摘要翻译： 为了将一个或多个接收机（E）同步到传输系统内的发射机（S），发射机（S）将特殊的同步列插入到数据流中。 同步列由至少两个不同的符号序列（A，B）形成，它们交替周期性地传输。
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2.发明授权Receiver and method for digital transmission in a wireless communication network 失效无线通信网络中数字传输的接收机和方法公开(公告)号：US06879649B1
公开(公告)日：2005-04-12
申请号：US09647632
申请日：1999-03-18
CPC分类号： H04W52/0216 , H04B1/1615 , H04L5/0048 , H04L5/1484 , H04L27/2613 , H04L27/2656 , H04L27/2675 , Y02D70/168 , Y02D70/40
摘要： In a method of digital data transmission in a wireless communication network in which a controlling communication takes place within a fixed bandwidth of a channel from a master station to all subscribers (downlink) with the help of a fixed signal frame, and the beginning of the fixed signal frame is marked by a special frame synchronization signal detectable by the subscribers, an occupancy of at least one subband by transmission signals and a non-occupancy of at least one complementary subband by transmission signals is used as a frame synchronization signal.
摘要翻译： 在无线通信网络中的数字数据传输的方法中，其中在固定信号帧的帮助下，在主站到所有用户（下行链路）的信道的固定带宽内进行控制通信，并且 固定信号帧由用户可检测的特殊帧同步信号标记，通过传输信号占用至少一个子带，并通过传输信号占用至少一个互补子带的非占用作为帧同步信号。
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公开(公告)号：US20090207853A1
公开(公告)日：2009-08-20
申请号：US12369633
申请日：2009-02-11
IPC分类号： H04L29/06
CPC分类号： H04L27/2647 , H04J11/0069 , H04L27/2607
摘要： A technique is provided for determining the configuration of a sub-frame having data symbols including cyclic-prefixes. In some communication standards such as the Long Term Evolution (LTE) standard, a plurality of possible configurations exist for a sub-frame, with each configuration being identifiable by a certain cyclic-prefix length. In an exemplary method realization, the technique includes receiving a data signal comprising the sub-frame, evaluating one or more hypotheses of the cyclic prefix length to produce one or more corresponding evaluation results, and, based on the evaluation results, deciding on a most-likely cyclic prefix length, according to which the sub-frame configuration is determined. The hypothesis evaluation may involve autocorrelation and cyclic accumulation of samples of the received data signal.
摘要翻译： 提供了一种用于确定具有包括循环前缀的数据符号的子帧的配置的技术。 在诸如长期演进（LTE）标准的某些通信标准中，对于子帧存在多个可能的配置，每个配置可以通过一定的循环前缀长度来识别。 在示例性方法实现中，该技术包括接收包括子帧的数据信号，评估循环前缀长度的一个或多个假设以产生一个或多个相应的评估结果，并且基于评估结果，决定最多 类似循环前缀长度，根据该长度确定子帧配置。 假设评估可以涉及接收数据信号的样本的自相关和循环累加。
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4.发明授权Multi-path timing tracking and impairment modeling for improved grake receiver performance in mobility scenarios 有权多路径定时跟踪和损伤建模，以改善移动场景中的接收器性能公开(公告)号：US08254325B2
公开(公告)日：2012-08-28
申请号：US12829093
申请日：2010-07-01
IPC分类号： H04W4/00
CPC分类号： H04B1/712 , H04B1/7085 , H04B1/7117 , H04B2201/709727
摘要： Methods and wireless receivers (5) are disclosed for estimating a propagation channel response that includes two closely spaced delays. An exemplary method comprises selecting (720) a plurality of receiver processing delays for sampling the received signal so that that the receiver processing delays span two closely spaced channel response delays, and calculating (730) an average channel coefficient magnitude over at least a first number of time slots of the received signal, for each of the receiver processing delays. The exemplary method further comprises estimating (740) delay timing for each of the two channel response delays, based on the average channel coefficient magnitudes and a multi-delay superposition model for the channel response, and calculating (750) complex channel gains for each of the two channel response delays, based on the estimated delay timings and channel response measurements taken over a second number of time slots that is less than the first number of time slots.
摘要翻译： 公开了用于估计包括两个紧密间隔的延迟的传播信道响应的方法和无线接收器（5）。 一种示例性方法包括：选择（720）多个接收机处理延迟以对接收到的信号进行采样，使得接收机处理延迟跨越两个紧密间隔的信道响应延迟，并且计算（730）至少第一数量的平均信道系数幅度 的接收信号的时隙，用于每个接收机处理延迟。 该示例性方法还包括：基于平均信道系数幅度和用于信道响应的多延迟叠加模型来估计（740）两个信道响应延迟中的每一个的延迟定时，并且计算（750）每个信道响应的复信道增益 基于估计的延迟定时和通过小于第一数量的时隙的第二数量的时隙进行的信道响应测量的两个信道响应延迟。
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公开(公告)号：US20090190642A1
公开(公告)日：2009-07-30
申请号：US12052042
申请日：2008-03-20
CPC分类号： H04B1/7077 , H04B1/70775
摘要： The present invention provides a method and apparatus for adapting a current path delay estimate for path delay tracking. The method comprises selecting an operating mode, determining a set of hypothesized path delays based on said operating mode, computing a metric for each hypothesized path delay, and adapting a current path delay estimate based on the computed metrics for the hypothesized path delays.
摘要翻译： 本发明提供一种用于调整路径延迟跟踪的电流路径延迟估计的方法和装置。 该方法包括选择操作模式，基于所述操作模式确定一组假设的路径延迟，计算每个假设路径延迟的度量，以及基于所计算的假设路径延迟的度量来调整当前路径延迟估计。
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公开(公告)号：US07978751B2
公开(公告)日：2011-07-12
申请号：US12052042
申请日：2008-03-20
CPC分类号： H04B1/7077 , H04B1/70775
摘要： The present invention provides a method and apparatus for adapting a current path delay estimate for path delay tracking. In order to determine the path delay an operating mode is selected and a set of hypothesized path delays are determined based on said operating mode. A metric for each hypothesized path delay is determined, and a current path delay estimate is adapted based on the computed metrics for the hypothesized path delays.
摘要翻译： 本发明提供一种用于调整路径延迟跟踪的电流路径延迟估计的方法和装置。 为了确定路径延迟，选择操作模式，并且基于所述操作模式确定一组假设的路径延迟。 确定每个假设的路径延迟的度量，并且基于所计算的假设路径延迟的度量来适配当前路径延迟估计。
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7.发明申请MULTI-PATH TIMING TRACKING AND IMPAIRMENT MODELING FOR IMPROVED GRAKE RECEIVER PERFORMANCE IN MOBILITY SCENARIOS 有权多路径时序跟踪和改进模型，用于改善移动性场景中的格雷接收机性能公开(公告)号：US20110002232A1
公开(公告)日：2011-01-06
申请号：US12829093
申请日：2010-07-01
IPC分类号： H04L12/26
CPC分类号： H04B1/712 , H04B1/7085 , H04B1/7117 , H04B2201/709727
摘要： Methods and wireless receivers (5) are disclosed for estimating a propagation channel response that includes two closely spaced delays. An exemplary method comprises selecting (720) a plurality of receiver processing delays for sampling the received signal so that that the receiver processing delays span two closely spaced channel response delays, and calculating (730) an average channel coefficient magnitude over at least a first number of time slots of the received signal, for each of the receiver processing delays. The exemplary method further comprises estimating (740) delay timing for each of the two channel response delays, based on the average channel coefficient magnitudes and a multi-delay superposition model for the channel response, and calculating (750) complex channel gains for each of the two channel response delays, based on the estimated delay timings and channel response measurements taken over a second number of time slots that is less than the first number of time slots.
摘要翻译： 公开了用于估计包括两个紧密间隔的延迟的传播信道响应的方法和无线接收器（5）。 一种示例性方法包括：选择（720）多个接收机处理延迟以对接收到的信号进行采样，使得接收机处理延迟跨越两个紧密间隔的信道响应延迟，并且计算（730）至少第一数量的平均信道系数幅度 的接收信号的时隙，用于每个接收机处理延迟。 该示例性方法还包括：基于平均信道系数幅度和用于信道响应的多延迟叠加模型来估计（740）两个信道响应延迟中的每一个的延迟定时，并且计算（750）每个信道响应的复信道增益 基于估计的延迟定时和通过小于第一数量的时隙的第二数量的时隙进行的信道响应测量的两个信道响应延迟。
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