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1. 发明授权

US07443826B1 Method and apparatus for automatic frequency control in a CDMA receiver 有权
标题翻译： CDMA接收机中自动频率控制的方法和装置
公开(公告)号：US07443826B1
公开(公告)日：2008-10-28
申请号：US09678907
申请日：2000-10-04
申请人： Roozbeh Atarius , Gregory Bottomley , Paul W. Dent
发明人： Roozbeh Atarius , Gregory Bottomley , Paul W. Dent
IPC分类号： H04B7/216
CPC分类号： H04B1/7087 , H04B1/712 , H04L2027/0055 , H04L2027/0093
摘要： Code division multiple access signals received through at least one multipath propagation channel are processed to produce at least one relative frequency error estimate. This involves receiving and processing the signals using a local frequency reference oscillator to obtain representative complex numerical samples for processing. The complex numerical samples are correlated with shifts of a locally generated despreading code and a number of complex channel estimates are produced, each corresponding to a different delayed ray of the at least one multipath propagation channel. A frequency error estimate is computed for each ray based on successive values of a respective one of the channel estimates, and a weighted summation of the frequency error estimates is performed to provide at least one relative frequency error estimate.
摘要翻译：经由至少一个多径传播信道接收的码分多址信号被处理以产生至少一个相对频率误差估计。这涉及使用本地频率参考振荡器接收和处理信号以获得用于处理的代表性的复数数值样本。复数值样本与本地生成的解扩码的移位相关，并且产生多个复信道估计，每个对应于至少一个多径传播信道的不同延迟的射线。基于信道估计的相应一个的连续值来计算每个射线的频率误差估计，并且执行频率误差估计的加权求和以提供至少一个相对频率误差估计。

2. 发明授权

US09559768B2 Same frequency satellite terrestrial radio broadcast 有权
标题翻译：同频卫星地面无线电广播
公开(公告)号：US09559768B2
公开(公告)日：2017-01-31
申请号：US12034283
申请日：2008-02-20
申请人： Paul W. Dent
发明人： Paul W. Dent
IPC分类号： H04B7/185
CPC分类号： H04B7/18526
摘要： A satellite broadcasts radio programs to mobile and fixed receivers at various locations. Ground stations supplement the satellite broadcasts in areas where the satellite signal may be shadowed. Likewise, the satellite signal supplements the terrestrial transmissions in areas with marginal terrestrial signal strength. Ground stations and a satellite transmit the same digital symbol stream over a same frequency spectrum. The symbol streams arrive in each service area of the ground stations with a relative delay that is within a window for which a receiver is adapted to decode efficiently. Spectral efficiency is achieved by allowing the ground stations to share the same frequencies as the satellites.
摘要翻译：卫星向各种地点的移动和固定接收机广播无线电节目。地面站补充卫星信号可能被遮蔽的地区的卫星广播。同样，卫星信号补充地面信号强度较低的地区的地面传输。地面站和卫星在同一频谱上发送相同的数字符号流。符号流在地面站的每个服务区域中到达接收机适于对其进行有效解码的相对延迟。通过允许地面站与卫星共享相同的频率来实现光谱效率。

3. 发明授权

US08259845B2 Method and apparatus for communicating with root-nyquist, self-transform pulse shapes 有权
标题翻译：与根蒂姆，自变形脉冲形状通信的方法和装置
公开(公告)号：US08259845B2
公开(公告)日：2012-09-04
申请号：US12126576
申请日：2008-05-23
申请人： Paul W. Dent
发明人： Paul W. Dent
IPC分类号： H04L25/03
CPC分类号： H04L25/03834 , H04L25/03821 , H04L25/0384 , H04L25/03859 , H04L27/2626 , H04L27/2647
摘要： A communication system (20) comprises a transmitter (22) and a receiver (24). The transmitter (22) comprises a source of information symbols (30); a pulse shaping wave function generator (32); and a combiner (34) configured to express the information symbols received from the source as signals which are shaped in time and frequency domains by the wave function. The pulse shaping wave function generator (32) is configured to provide a wave function which has the Nyquist property and has a same shape as its own Fourier transform. The combiner (34) is configured to combine the wave function with a stream of digital data symbols to produce a filtered stream for transmission by the transmitter.
摘要翻译：通信系统（20）包括发射机（22）和接收机（24）。发射机（22）包括信息符号源（30）; 脉冲整形波函数发生器（32）; 以及组合器（34），被配置为将从源接收的信息符号表示为通过波函数在时域和频域中成形的信号。脉冲整形波函数发生器（32）被配置为提供具有奈奎斯特性质并且具有与其自身傅里叶变换相同形状的波函数。组合器（34）被配置为将波函数与数字数据符号流组合以产生经过滤波以供发射机传输。

4. 发明申请

US20110150049A1 MIMO CHANNEL LOOPBACK 审中-公开
标题翻译： MIMO信道环回
公开(公告)号：US20110150049A1
公开(公告)日：2011-06-23
申请号：US12645856
申请日：2009-12-23
申请人： Paul W. Dent
发明人： Paul W. Dent
IPC分类号： H04L27/28 , H04B1/38
CPC分类号： H04L5/0053 , H04L5/0048 , H04L5/0057
摘要： A method and apparatus for efficiently providing a large volume of channel feedback, e.g., for OFDM MISO and MIMO systems, is described herein. To that end, a mapping unit in an OFDM transceiver maps channel feedback values, e.g., received reference signal values or channel estimates derived therefrom, on a one-to-one basis to individual transmission subchannels. More particularly, the mapping unit maps a feedback value, e.g., the received reference value or a channel estimate derived therefrom, to a single transmission subchannel of an outgoing OFDM signal. For example, the mapping unit may map the feedback value to an input of a frequency transform unit, such as an inverse discrete Fourier transform unit, to map the feedback value to a single transmission subchannel comprising an OFDM transmission subcarrier. The OFDM transceiver transmits the outgoing OFDM signal to the remote transceiver to provide the feedback value to the remote transceiver.
摘要翻译：本文描述了用于有效地提供大量信道反馈的方法和装置，例如用于OFDM MISO和MIMO系统。为此，OFDM收发器中的映射单元将信道反馈值（例如，接收到的参考信号值或从其导出的信道估计）一一对应地映射到各个传输子信道。更具体地，映射单元将例如所接收的参考值或其导出的信道估计的反馈值映射到输出OFDM信号的单个传输子信道。例如，映射单元可以将反馈值映射到诸如逆离散傅立叶变换单元的频率变换单元的输入，以将反馈值映射到包括OFDM发送子载波的单个发送子信道。 OFDM收发器将输出的OFDM信号发送到远程收发器以向远程收发器提供反馈值。

5. 发明申请

US20080291821A1 ORTHOGONAL SPREAD-SPECTRUM WAVEFORM GENERATION WITH NON-CONTIGUOUS SPECTRAL OCCUPANCY FOR USE IN CDMA COMMUNICATIONS 有权
标题翻译：在CDMA通信中使用非连续频谱分析的正交扩频波形发生
公开(公告)号：US20080291821A1
公开(公告)日：2008-11-27
申请号：US11929268
申请日：2007-10-30
申请人： Paul W. Dent
发明人： Paul W. Dent
IPC分类号： H04J11/00 , H04B7/216
CPC分类号： H04J13/10 , H04B1/7097 , H04B2201/709709
摘要： The technology in this application solves these problems (and others) and meets the desirable goals identified above (and others). The technology spreads a signal over an available discontinuous spectrum, such as a radio frequency band, so that the spread signal only occupies the non-contiguous spectrum. In this way, CDMA transmission and reception can be used in a fragmented or non-contiguous spectum that otherwise would not be useable for direct sequence spreading. Spreading over non-contiguous portions of spectrum is preferably performed without producing unacceptable interference in portions of unavailable spectrum located between the allowed spectrum. By avoiding unacceptable interference in portions of unavailable spectrum located between the allowed spectrum, the unavailable spectrum may be used by other users or services.
摘要翻译：在这个应用中的技术解决了这些问题（和其他），并满足了上述（和其他）所确定的理想目标。该技术在可用的不连续频谱（例如射频频带）上传播信号，使得扩展信号仅占据非连续频谱。以这种方式，CDMA发送和接收可以用于分段或不连续的光谱，否则不能用于直接序列扩展。优选地在频谱的非连续部分上扩展，而不会在位于允许频谱之间的不可用频谱的部分中产生不可接受的干扰。通过避免位于允许频谱之间的部分不可用频谱中的不可接受的干扰，不可用频谱可被其他用户或服务使用。

6. 发明授权

US07184492B2 Using antenna arrays in multipath environment 有权
标题翻译：在多路径环境中使用天线阵列
公开(公告)号：US07184492B2
公开(公告)日：2007-02-27
申请号：US10361244
申请日：2003-02-10
申请人： Paul W. Dent
发明人： Paul W. Dent
IPC分类号： H04L27/04
CPC分类号： H04B7/0671 , H04B7/0408 , H04B7/0617 , H04B7/0695
摘要： The invention comprises using beamforming antenna to coherently transmit an information signal to a receiver using two or more directional beams. In one embodiment, the phase and timing of the information signals carried by each directional beams are adjusted such that the signals arrive synchronously at the mobile terminal. Time synchronization may be obtained by delaying signals transmitted on selected directional beams to compensate for different propagation delays, or by preconditioning and filtering the signals using a channel coefficient matrix.
摘要翻译：本发明包括使用波束形成天线使用两个或更多个定向波束将信息信号相干地发射到接收机。在一个实施例中，调整每个定向波束所携带的信息信号的相位和定时，使得信号在移动终端同步到达。可以通过延迟在所选定向波束上传输的信号来补偿不同的传播延迟，或通过使用信道系数矩阵预处理和滤波信号来获得时间同步。

7. 发明授权

US07155229B2 Distributed wireless architecture using microcast 有权
公开(公告)号：US07155229B2
公开(公告)日：2006-12-26
申请号：US10041251
申请日：2002-01-08
申请人： Paul W. Dent
发明人： Paul W. Dent
IPC分类号： H04Q7/20
CPC分类号： H04W16/32 , H04B1/715 , H04B2001/7154 , H04W36/18 , H04W88/085
摘要： A mobile communication system comprises a plurality of cells, with each cell including a network of microstations distributed more or less uniformly throughout the cell. A central controller connected to the network of microstations selects a group of microstations in the vicinity of the mobile terminal to transmit information to the mobile terminal. The selected microstations in the active set for a given mobile terminal is continuously updated as the mobile terminal moves through the network of microstations to form a virtual cell that follows the mobile terminal through the network. Transmission conflicts between two mobile terminals is avoided by inhibiting transmissions from an active microstation to at least one of the co-channel mobile terminals when a transmission conflict is detected.

8. 发明授权

US07027454B2 Multi-signal transmit array with low intermodulation 有权
公开(公告)号：US07027454B2
公开(公告)日：2006-04-11
申请号：US10007244
申请日：2001-11-13
申请人： Paul W. Dent
发明人： Paul W. Dent
IPC分类号： H04L12/28
CPC分类号： H01Q3/40 , H01Q21/061 , H01Q25/00
摘要： A transmitter is provided for simultaneously transmitting a plurality of signals in a plurality of directive beams to corresponding destination stations, each destination station located in a separate fan within a service area. The transmitter includes a plurality of beamformers, each beamformer receiving one of the signals to be transmitted to an associated fan, each of the beamformers having a plurality of outputs for each different signal to be transmitted. A plurality of Butler matrices each receive one of the plurality of outputs from the plurality of beamformers for each different signal to be transmitted, each Butler matrix having a plurality of outputs in phased relationship to one another, wherein each of the signals to be transmitted is simultaneously provided across the outputs of each Butler matrix in a phased relationship. An antenna is provided with an aperture within which a two-dimensional array of antenna elements are disposed, wherein equal fractions of adjacent antenna elements are connected to the outputs of each Butler matrix, and wherein each of the plurality of signals are simultaneously transmitted by the entire two-dimensional array of antenna elements. Each of the plurality of beamformers receives steering control signals for steering the direction of each beam within its respective fan.

9. 发明授权

US06961368B2 Adaptive antenna optimization network 有权
标题翻译：自适应天线优化网络
公开(公告)号：US06961368B2
公开(公告)日：2005-11-01
申请号：US09770804
申请日：2001-01-26
申请人： Paul W. Dent , Howard Eugene Holshouser , John Charles Phillips , Rod Dolman , Ron Boesch
发明人： Paul W. Dent , Howard Eugene Holshouser , John Charles Phillips , Rod Dolman , Ron Boesch
IPC分类号： H04B1/04 , H04B1/40 , H04L5/16 , H04L27/04 , H04L27/06
CPC分类号： H03F3/24 , H04B1/005 , H04B1/0057 , H04B1/0458 , H04B1/406
摘要： An adjustable matching network is provided for a wireless communications device transmitting and receiving signals in multiple frequency bands via an antenna. The adjustable matching network selectively connecting the antenna to a select power amplifier corresponding to a selected transmit frequency band and automatically matching the impedance of the antenna to the select power amplifier. The adjustable matching network also selectively connecting the antenna to a select bandpass filter corresponding to a selected receive frequency band and automatically matching the impedance of the antenna to the select bandpass filter.
摘要翻译：为无线通信设备提供可调整的匹配网络，其经由天线在多个频带中发送和接收信号。可调匹配网络将天线选择性地连接到对应于所选发射频带的选择功率放大器，并自动匹配天线与选择功率放大器的阻抗。可调匹配网络还选择性地将天线连接到对应于所选接收频带的选择带通滤波器，并自动匹配天线与选择带通滤波器的阻抗。

10. 发明授权

US06944206B1 Rate one coding and decoding methods and systems 有权
标题翻译：对一种编码和解码方法和系统进行评估
公开(公告)号：US06944206B1
公开(公告)日：2005-09-13
申请号：US09718022
申请日：2000-11-20
申请人： Paul W. Dent
发明人： Paul W. Dent
IPC分类号： H04L1/00 , H04B1/707
CPC分类号： H04L1/0057 , H04L1/0054 , H04L1/0059 , H04L1/0065 , H04L1/0069 , H04L1/0071
摘要： Methods and systems are provided for communicating encoded data. L received encoded signal values including soft information are received and transformed to L data symbols. In various embodiments, the L received encoded signal values are demodulated and the demodulated L received encoded signal values are convolutional decoded using a rate one convolutional decoder having only one output symbol per input symbol to provide the L data symbols, wherein the L received encoded signal values are convolutional encoded using a rate one convolutional encoder having only one output symbol per input symbol. In other embodiments of the present invention the L received encoded signal values are transformed using associated spectral energy at a plurality of frequency ranges within a bandwidth of a channel over which the L received encoded signal values are received for at least one of the L received encoded signal values.
摘要翻译：提供了用于传达编码数据的方法和系统。 L接收到包括软信息的编码信号值被接收并变换成L个数据符号。在各种实施例中，L个接收编码信号值被解调，并且解调的L个接收编码信号值被卷积解码，使用一个速率一个卷积解码器，每个输入符号只有一个输出符号，以提供L个数据符号，其中L个接收编码信号值使用仅具有每个输入符号的一个输出符号的速率一卷积编码器进行卷积编码。在本发明的其他实施例中，L个接收编码信号值被使用在频道的带宽内的多个频率范围内使用相关联的频谱能量进行变换，在该频带的带宽内，L个接收的编码信号值被接收到L个接收编码的信号中的至少一个信号值。

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