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31. 发明授权

US08238482B2 Techniques for improving channel estimation and tracking in a wireless communication system 有权
标题翻译：在无线通信系统中改善信道估计和跟踪的技术
公开(公告)号：US08238482B2
公开(公告)日：2012-08-07
申请号：US12250613
申请日：2008-10-14
申请人： Ning Chen , Ahsan U. Aziz , Leo G. Dehner , Taeyoon Kim
发明人： Ning Chen , Ahsan U. Aziz , Leo G. Dehner , Taeyoon Kim
IPC分类号： H04L27/06
CPC分类号： H04L5/0053 , H04L25/0204 , H04L25/0236 , H04W28/04 , H04W56/0055
摘要： A technique for performing channel tracking and/or channel estimation in a wireless communication device includes receiving a reference signal and one or more non-error propagation physical channel signals. In general, the one or more non-error propagation physical channel signals must be correctly decoded before a data channel can be decoded. Channel tracking and/or channel estimation are/is then performed based on the reference signal and at least one of the one or more non-error propagation physical channel signals.
摘要翻译：用于在无线通信设备中执行信道跟踪和/或信道估计的技术包括接收参考信号和一个或多个非错误传播物理信道信号。一般来说，一个或多个非错误传播物理信道信号必须在数据信道可被解码之前被正确解码。然后基于参考信号和一个或多个非错误传播物理信道信号中的至少一个执行信道跟踪和/或信道估计。

32. 发明授权

US07912119B2 Per-survivor based adaptive equalizer 有权
标题翻译：基于幸存者的自适应均衡器
公开(公告)号：US07912119B2
公开(公告)日：2011-03-22
申请号：US11895147
申请日：2007-08-23
申请人： Weizhong Chen , Leo G. Dehner
发明人： Weizhong Chen , Leo G. Dehner
IPC分类号： H03H7/30 , H03K5/159 , H04L27/06 , H04B1/10
CPC分类号： H04L25/0232 , H04L25/03203 , H04L25/03248 , H04L25/03337
摘要： A method used in an adaptive survivor based channel equalizer, the method comprises selecting at a decision time a survivor in a Viterbi trellis and a corresponding equalizer, adaptively updating at the decision time the corresponding equalizer to define a new corresponding equalizer for use at a next decision time, retrieving the new corresponding equalizer as defined at an earlier decision time, and using the new corresponding equalizer as defined at an earlier decision time as an equalizer for other survivors in the Viterbi trellis at the next decision time. A corresponding adaptive survivor based channel equalizer includes a fixed pre-filter configured to provide a pre-filtered signal to a reduced state sequence estimator (RSSE) which is configured for providing recovered symbols. A coefficient adaptor is coupled to the RSSE and configured to essentially perform the method.
摘要翻译：一种在基于自适应幸存者的信道均衡器中使用的方法，所述方法包括在决策时间选择维特比网格中的幸存者和相应的均衡器，在决策时间自适应地更新相应的均衡器以定义新的对应的均衡器以在下一个检索在较早的决定时间定义的新的对应的均衡器，并且使用在较早的决策时间定义的新的相应的均衡器作为维特比网格中的下一个决定时间的其他幸存者的均衡器。相应的基于自适应幸存者的信道均衡器包括被配置为向经配置以提供恢复符号的减少状态序列估计器（RSSE）提供预滤波信号的固定预滤波器。系数适配器耦合到RSSE并且被配置为基本上执行该方法。

33. 发明申请

US20090060102A1 FAST PREDICTIVE AUTOMATIC GAIN CONTROL FOR DYNAMIC RANGE REDUCTION IN WIRELESS COMMUNICATION RECEIVER 有权
标题翻译：无线通信接收机动态范围减少的快速预测自动增益控制
公开(公告)号：US20090060102A1
公开(公告)日：2009-03-05
申请号：US11849551
申请日：2007-09-04
申请人： Ian C. Wong , Leo G. Dehner , James W. McCoy
发明人： Ian C. Wong , Leo G. Dehner , James W. McCoy
IPC分类号： H04L27/08
CPC分类号： H03G3/3068 , H03G3/001 , H04L25/0212
摘要： A method of fast predictive automatic gain control is disclosed including estimating channel gain applied to a received signal, predicting channel gain at a subsequent time by applying temporal correlation statistics to the estimated channel gain, determining a predicted receiver gain which reduces variance between the predicted channel gain and a predetermined target power level, and applying the predicted receiver gain to the received signal. The method may include applying linear minimum mean-squared error prediction to the estimated channel gain. The method may include predicting error variance at the subsequent time by applying the temporal correlation statistics to the estimated channel gain and combining the predicted channel gain and the predicted error variance. The method may include estimating channel gain of known pilot symbols, estimating a temporal correlation function using the estimated channel gain, and determining predicted channel gain using the estimated channel gain and the estimated temporal correlation function.
摘要翻译：公开了一种快速预测自动增益控制的方法，包括估计应用于接收信号的信道增益，通过对估计的信道增益应用时间相关统计来预测随后时间的信道增益，确定预测的接收机增益，其减小预测信道增益和预定的目标功率电平，以及将预测的接收机增益应用于所接收的信号。该方法可以包括对估计的信道增益应用线性最小均方误差预测。该方法可以包括通过对估计的信道增益应用时间相关统计量并组合预测的信道增益和预测误差方差来预测随后时间的误差方差。该方法可以包括估计已知导频符号的信道增益，使用估计的信道增益估计时间相关函数，以及使用估计的信道增益和估计的时间相关函数来确定预测信道增益。

34. 发明申请

US20090052516A1 Per-survivor based adaptive equalizer 有权
标题翻译：基于幸存者的自适应均衡器
公开(公告)号：US20090052516A1
公开(公告)日：2009-02-26
申请号：US11895147
申请日：2007-08-23
申请人： Weizhong Chen , Leo G. Dehner
发明人： Weizhong Chen , Leo G. Dehner
IPC分类号： H03H7/30 , H03K5/159
CPC分类号： H04L25/0232 , H04L25/03203 , H04L25/03248 , H04L25/03337
摘要： A method used in an adaptive survivor based channel equalizer, the method comprises selecting at a decision time a survivor in a Viterbi trellis and a corresponding equalizer, adaptively updating at the decision time the corresponding equalizer to define a new corresponding equalizer for use at a next decision time, retrieving the new corresponding equalizer as defined at an earlier decision time, and using the new corresponding equalizer as defined at an earlier decision time as an equalizer for other survivors in the Viterbi trellis at the next decision time. A corresponding adaptive survivor based channel equalizer includes a fixed pre-filter configured to provide a pre-filtered signal to a reduced state sequence estimator (RSSE) which is configured for providing recovered symbols. A coefficient adaptor is coupled to the RSSE and configured to essentially perform the method.
摘要翻译：一种在基于自适应幸存者的信道均衡器中使用的方法，所述方法包括在决策时间选择维特比网格中的幸存者和相应的均衡器，在决策时间自适应地更新相应的均衡器以定义新的对应的均衡器以在下一个检索在较早的决定时间定义的新的对应的均衡器，并且使用在较早的决策时间定义的新的相应的均衡器作为维特比网格中的下一个决定时间的其他幸存者的均衡器。相应的基于自适应幸存者的信道均衡器包括被配置为向经配置以提供恢复符号的减少状态序列估计器（RSSE）提供预滤波信号的固定预滤波器。系数适配器耦合到RSSE并且被配置为基本上执行该方法。

35. 发明申请

US20080268888A1 TECHNIQUES FOR IMPROVING CONTROL CHANNEL ACQUISITION IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：改善无线通信系统中控制信道获取的技术
公开(公告)号：US20080268888A1
公开(公告)日：2008-10-30
申请号：US11742255
申请日：2007-04-30
申请人： Ning Chen , Leo G. Dehner , James W. McCoy
发明人： Ning Chen , Leo G. Dehner , James W. McCoy
IPC分类号： H04B7/00
CPC分类号： H04W72/0406 , H04W48/16
摘要： A technique of operating a wireless communication system includes determining respective geometries of multiple subscriber stations, which include a first subscriber station and a second subscriber station, with respect to a serving base station. Respective control channels, which include a first control channel associated with the first subscriber station and a second control channel associated with the second subscriber station, for the multiple subscriber stations are then scheduled based on the respective geometries. The first control channel is scheduled to be encountered earlier in a control channel search procedure, of the one or more control channel symbols, than the second control channel. The first subscriber station has a lower geometry than the second subscriber station.
摘要翻译：操作无线通信系统的技术包括相对于服务基站确定包括第一用户站和第二用户站的多个用户站的相应几何。然后基于各自的几何结构来调度与多个用户站相关的包括与第一用户站相关联的第一控制信道和与第二用户站相关联的第二控制信道的各个控制信道。第一控制信道被调度为比第二控制信道更早地在一个或多个控制信道符号的控制信道搜索过程中遇到。第一用户站具有比第二用户站更低的几何形状。

36. 发明授权

US5796787A Receiver and method thereof 失效
标题翻译：接收机及其方法
公开(公告)号：US5796787A
公开(公告)日：1998-08-18
申请号：US859809
申请日：1997-05-19
申请人： Weizhong Chen , Leo G. Dehner , Stephen Rocco Carsello
发明人： Weizhong Chen , Leo G. Dehner , Stephen Rocco Carsello
IPC分类号： H04L1/16 , H04L7/027 , H04L7/04 , H04L27/00 , H04L27/148 , H04L27/233 , H04L27/38 , H04L27/14
CPC分类号： H04L27/2332 , H04L27/148 , H04L27/3854 , H04L7/027 , H04L7/042 , H04L7/046 , H04L1/16 , H04L2027/003 , H04L2027/0046 , H04L2027/0093
摘要： A receiver (109) and a method therein arranged and constructed to receive a signal using a noncoherent matched filter structure including a frequency detector (205) arranged to process a first portion (602) of the signal to provide a frequency error; a timing detector (206), responsive to the frequency error, arranged to process a second portion (604) of the signal to provide a timing error; and a symbol detector (209), responsive to the frequency error and the timing error, arranged to process a symbol portion (606) of the signal to provide a detected symbol.
摘要翻译：一种接收机（109）及其方法，其中布置和构造为使用非相干匹配滤波器结构接收信号，所述非相干匹配滤波器结构包括频率检测器（205），所述频率检测器被布置为处理所述信号的第一部分（602）以提供频率误差; 定时检测器（206），响应于所述频率误差，被布置为处理所述信号的第二部分（604）以提供定时误差; 以及响应于所述频率误差和定时误差的符号检测器（209），被布置为处理所述信号的符号部分（606）以提供检测到的符号。

37. 发明授权

US10261939B2 Performing lookup table operations on a single-instruction multiple data processor 有权
公开(公告)号：US10261939B2
公开(公告)日：2019-04-16
申请号：US14464134
申请日：2014-08-20
申请人： Leo G. Dehner , Jayakrishnan C. Mundarath , Peter Z. Rashev
发明人： Leo G. Dehner , Jayakrishnan C. Mundarath , Peter Z. Rashev
IPC分类号： G06F15/80 , G06F9/30 , G06F17/10 , G06F9/38 , H04B1/62 , H04L27/36 , H03F1/32 , H04B1/04
摘要： In accordance with at least one embodiment, a processor system is disclosed having a SIMD processor device that has a plurality of subsidiary processing elements that are controlled to process multiple data concurrently. In accordance with at least one embodiment, the SIMD processor is a vector processor (VPU) having a plurality of vector Arithmetic Units (AUs) as subsidiary processing elements, and the VPU executes an instruction to transfer table information from a global memory of the VPU to a plurality of local memories accessible by each AU. The VPU also executes an instruction that results in each processing element performing a table lookup from a table stored at its local memory. In response to the instruction, this table lookup uses a portion of a lookup value to access information from the table, and uses another portion of the lookup information to calculate an interpolated resultant based upon the accessed information.

38. 发明授权

US09723600B2 Dynamic allocation of communication resources in a wireless system 有权
公开(公告)号：US09723600B2
公开(公告)日：2017-08-01
申请号：US13544887
申请日：2012-07-09
申请人： James W. McCoy , Leo G. Dehner
发明人： James W. McCoy , Leo G. Dehner
IPC分类号： H04W72/04 , H04W72/14 , H04L5/00
CPC分类号： H04W72/042 , H04L5/0007 , H04L5/0053 , H04L5/0082 , H04L5/0094 , H04L5/0096 , H04W72/14
摘要： A method of receiving information by a wireless communication device is provided. The method includes receiving a plurality of wireless subframes at a periodic interval, wherein an interval duration of the periodic interval is greater than a duration of each of the plurality of wireless subframes. The method further includes determining for each wireless subframe of the plurality whether the wireless subframe includes a grant resource that indicates that a resource unit pattern of a plurality of selectively assignable resource unit patterns of resource units of the subframe includes information for the communication device. A method of transmitting information by the wireless communication device is also provided.

39. 发明申请

US20130034017A1 TECHNIQUES FOR IMPROVING CHANNEL ESTIMATION AND TRACKING IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：在无线通信系统中改进信道估计和跟踪的技术
公开(公告)号：US20130034017A1
公开(公告)日：2013-02-07
申请号：US13567997
申请日：2012-08-06
申请人： Ning Chen , Ahsan U. Aziz , Leo G. Dehner , Taeyoon Kim
发明人： Ning Chen , Ahsan U. Aziz , Leo G. Dehner , Taeyoon Kim
IPC分类号： H04W16/00
CPC分类号： H04L5/0053 , H04L25/0204 , H04L25/0236 , H04W28/04 , H04W56/0055
摘要： A technique for performing channel tracking and/or channel estimation in a wireless communication device includes receiving a reference signal and one or more non-error propagation physical channel signals. In general, the one or more non-error propagation physical channel signals must be correctly decoded before a data channel can be decoded. Channel tracking and/or channel estimation are/is then performed based on the reference signal and at least one of the one or more non-error propagation physical channel signals.
摘要翻译：用于在无线通信设备中执行信道跟踪和/或信道估计的技术包括接收参考信号和一个或多个非错误传播物理信道信号。一般来说，一个或多个非错误传播物理信道信号必须在数据信道可被解码之前被正确解码。然后基于参考信号和一个或多个非错误传播物理信道信号中的至少一个执行信道跟踪和/或信道估计。

40. 发明申请

US20130010746A1 DYNAMIC ALLOCATION OF COMMUNICATION RESOURCES IN A WIRELESS SYSTEM 有权
公开(公告)号：US20130010746A1
公开(公告)日：2013-01-10
申请号：US13544887
申请日：2012-07-09
申请人： James W. McCoy , Leo G. Dehner
发明人： James W. McCoy , Leo G. Dehner
IPC分类号： H04W72/04 , H04W72/14
CPC分类号： H04W72/042 , H04L5/0007 , H04L5/0053 , H04L5/0082 , H04L5/0094 , H04L5/0096 , H04W72/14
摘要： A method of receiving information by a wireless communication device is provided. The method includes receiving a plurality of wireless subframes at a periodic interval, wherein an interval duration of the periodic interval is greater than a duration of each of the plurality of wireless subframes. The method further includes determining for each wireless subframe of the plurality whether the wireless subframe includes a grant resource that indicates that a resource unit pattern of a plurality of selectively assignable resource unit patterns of resource units of the subframe includes information for the communication device. A method of transmitting information by the wireless communication device is also provided.

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