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1. 发明授权

US07095708B1 Methods and apparatus for use in communicating voice and high speed data in a wireless communication system 有权
标题翻译：用于在无线通信系统中传送语音和高速数据的方法和装置
公开(公告)号：US07095708B1
公开(公告)日：2006-08-22
申请号：US09594467
申请日：2000-06-14
申请人： Siavash Alamouti , Jeffrey Battin , David B. Gibbons , James Timothy Golden , Michael R. Hirano , Elliott Hoole , Mary Jesse , Robert Lee Maxwell , Steven E. McMeekin , David J. Nix , David James Ryan , Gregory J. Veintimilla , Hongliang Zhang
发明人： Siavash Alamouti , Jeffrey Battin , David B. Gibbons , James Timothy Golden , Michael R. Hirano , Elliott Hoole , Mary Jesse , Robert Lee Maxwell , Steven E. McMeekin , David J. Nix , David James Ryan , Gregory J. Veintimilla , Hongliang Zhang
IPC分类号： H04J11/00
CPC分类号： H04L27/2627 , H04L5/0007 , H04L5/0048 , H04L5/143 , H04L27/2604 , H04L27/34
摘要： A fixed wireless system (FWS) utilizing Orthogonal Frequency Division Multiplexing (OFDM) communication techniques is spectrally efficient and responsive to communications involving both voice and high speed data, such as Internet data. The FWS includes a wireless base unit; a plurality of fixed wireless remote units; a plurality of wireless data traffic channels available between the wireless base unit and the plurality of fixed wireless remote units; and a plurality of wireless voice traffic channels available between the wireless base unit and the plurality of fixed wireless remote units. Each wireless traffic channel is identifiable by a unique combination of frequency and time slots. Each wireless data traffic channel is used for carrying high speed data in addressed data packets to and from the plurality of fixed wireless remote units. On the other hand, each wireless voice traffic channel can be assigned and dedicated to a particular voice communication call involving one of the plurality of fixed wireless remote units for carrying voice data of the call.
摘要翻译：使用正交频分复用（OFDM）通信技术的固定无线系统（FWS）对于涉及语音和高速数据（诸如因特网数据）的通信是有效的并且响应。 FWS包括无线基站单元; 多个固定无线遥控单元; 在无线基站单元和多个固定无线远程单元之间可用的多个无线数据业务信道; 以及在无线基站单元和多个固定无线远程单元之间可用的多个无线语音业务信道。每个无线业务信道可以通过频率和时隙的独特组合来识别。每个无线数据业务信道用于承载来自多个固定无线远程单元的寻址数据分组中的高速数据。另一方面，每个无线语音业务信道可以被分配并专用于涉及用于承载该呼叫的语音数据的多个固定无线远程单元中的一个的特定语音通信呼叫。

2. 发明授权

US06359923B1 Highly bandwidth efficient communications 失效
标题翻译：高带宽高效通信
公开(公告)号：US06359923B1
公开(公告)日：2002-03-19
申请号：US08993721
申请日：1997-12-18
申请人： Brian G. Agee , Matthew Bromberg , Derek Gerlach , David Gibbons , James Timothy Golden , Minnie Ho , Elliott Hoole , Mary Jesse , Robert Lee Maxwell , Robert G. Mechaley, Jr. , Robert Ray Naish , David J. Nix , David James Ryan , David Stephenson
发明人： Brian G. Agee , Matthew Bromberg , Derek Gerlach , David Gibbons , James Timothy Golden , Minnie Ho , Elliott Hoole , Mary Jesse , Robert Lee Maxwell , Robert G. Mechaley, Jr. , Robert Ray Naish , David J. Nix , David James Ryan , David Stephenson
IPC分类号： A61F206
CPC分类号： H04B1/69 , H04B1/692 , H04B1/707 , H04B1/7107 , H04B7/04 , H04B2201/70702 , H04L5/0021 , H04L5/0026 , H04L5/0048 , H04L5/026 , H04L25/0228 , H04L25/03019 , H04L27/186 , H04L27/3416 , H04L2025/03414 , H04L2025/03426 , H04W16/14 , H04W88/08
摘要： A discrete multitone stacked-carrier spread spectrum communication method is based on frequency domain spreading including multiplication of a baseband signal by a set of superimposed, or stacked, complex sinusoid carrier waves. In a preferred embodiment, the spreading involves energizing the bins of a large Fast Fourier transform (FFT). This provides a considerable savings in computational complexity for moderate output FFT sizes. Point-to-multipoint and multipoint-to-multipoint (nodeless) network topologies are possible. A code-nulling method is included for interference cancellation and enhanced signal separation by exploiting the spectral diversity of the various sources. The basic method may be extended to include multielement antenna array nulling methods for interference cancellation and enhanced signal separation using spatial separation. Such methods permit directive and retrodirective rev transmission systems that adapt or can be adapted to the radio environment. Such systems are compatible with bandwidth-on-demand and higher-order modulation formats and use advanced adaptation algorithms. In a specific embodiment the spectral and spatial components of the adaptive weights are calculated in a unified operation based on the mathematical analogy between the spectral and spatial descriptions of the airlink.
摘要翻译：离散多媒体叠层载波扩频通信方法是基于频域扩展，包括基带信号乘以叠加的或叠加的复数正弦波载波的集合。在优选实施例中，扩展涉及激励大的快速傅立叶变换（FFT）的信息仓。这为中等输出FFT大小节省了大量的计算复杂度。点对多点和多点到多点（无节点）网络拓扑是可能的。通过利用各种光源的光谱多样性，可以包括一个代码归零方法用于干扰消除和增强的信号分离。基本方法可以扩展为包括用于干扰消除的多元天线阵列归零方法和使用空间分离的增强信号分离。这种方法允许适应或可以适应于无线电环境的指令和逆向转发传输系统。这样的系统与带宽按需和高阶调制格式兼容，并且使用高级适配算法。在具体实施例中，基于空中链路的频谱和空间描述之间的数学类比，以统一的操作来计算自适应权重的频谱和空间分量。

3. 发明授权

US07106781B2 Highly bandwidth-efficient communications 有权
公开(公告)号：US07106781B2
公开(公告)日：2006-09-12
申请号：US09920903
申请日：2001-08-03
申请人： Brian G. Agee , Matthew Bromberg , Derek Gerlach , David Gibbons , James Timothy Golden , Minnie Ho , Elliott Hoole , Mary Jesse , Robert Lee Maxwell , Robert G. Mechaley, Jr. , Robert Ray Naish , David J. Nix , David James Ryan , David Stephenson
发明人： Brian G. Agee , Matthew Bromberg , Derek Gerlach , David Gibbons , James Timothy Golden , Minnie Ho , Elliott Hoole , Mary Jesse , Robert Lee Maxwell , Robert G. Mechaley, Jr. , Robert Ray Naish , David J. Nix , David James Ryan , David Stephenson
IPC分类号： H04B1/69 , H04B7/216
CPC分类号： H04B1/69 , H04B1/692 , H04B1/707 , H04B1/7107 , H04B7/04 , H04B2201/70702 , H04L5/0021 , H04L5/0026 , H04L5/0048 , H04L5/026 , H04L25/0228 , H04L25/03019 , H04L27/186 , H04L27/3416 , H04L2025/03414 , H04L2025/03426 , H04W16/14 , H04W88/08
摘要： A discrete multitone stacked-carrier spread spectrum communication method is based on frequency domain spreading including multiplication of a baseband signal by a set of superimposed, or stacked, complex sinusoid carrier waves. In a preferred embodiment, the spreading involves energizing the bins of a large Fast Fourier transform (FFT). This provides a considerable savings in computational complexity for moderate output FFT sizes. Point-to-multipoint and multipoint-to-multipoint (nodeless) network topologies are possible. A code-nulling method is included for interference cancellation and enhanced signal separation by exploiting the spectral diversity of the various sources. The basic method may be extended to include multielement antenna array nulling methods for interference cancellation and enhanced signal separation using spatial separation. Such methods permit directive and retrodirective transmission systems that adapt or can be adapted to the radio environment. Such systems are compatible with bandwidth-on-demand and higher-order modulation formats and use advanced adaptation algorithms. In a specific embodiment the spectral and spatial components of the adaptive weights are calculated in a unified operation based on the mathematical analogy between the spectral and spatial descriptions of the airlink.

4. 发明授权

US06333937B1 Access retry method for shared channel wireless communications links 失效
标题翻译：共享信道无线通信链路的接入重试方法
公开(公告)号：US06333937B1
公开(公告)日：2001-12-25
申请号：US09035287
申请日：1998-03-05
申请人： David James Ryan
发明人： David James Ryan
IPC分类号： H04J316
CPC分类号： H04W72/044 , H04W24/00 , H04W74/00
摘要： Each remote station in a wireless network cell that uses a collision oriented multiple access scheme, counts the number of retries attempted to gain access to the base station for a particular message. The accumulated value of the number of retries is then inserted in a retry count field of the access request message. After one or more retries, the base station successfully receives the access request message. The base station runs a common access channel allocation manager program that adaptively provides additional channels to the remote station, depending on the number of retries the remote station required to successfully transmit the access request message. In this manner, the base station has accurate information about the reduced performance that the remote stations suffer during an interval of high usage, to enable the base station to adaptively provide additional channels to the remote stations.
摘要翻译：在使用面向冲突的多址方案的无线网络小区中的每个远程站计数针对特定消息尝试获得对基站的访问的重试次数。然后将重试次数的累积值插入到访问请求消息的重试计数字段中。在一次或多次重试之后，基站成功接收到访问请求消息。基站运行公共接入信道分配管理器程序，其根据远程站成功发送接入请求消息所需的重试次数，自动向远程站提供附加信道。以这种方式，基站具有关于远程站在高使用间隔期间遭受的性能降低的准确信息，以使基站能够自适应地向远程站提供附加信道。

5. 发明授权

US07149238B2 Highly bandwidth-efficient communications 失效
公开(公告)号：US07149238B2
公开(公告)日：2006-12-12
申请号：US11409437
申请日：2006-04-21
申请人： Brian G. Agee , Matthew Bromberg , Derek Gerlach , David Gibbons , James Timothy Golden , Minnic Ho , Elliott Hoole , Mary Jesse , Robert Lee Maxwell , Robert G. Mechaley, Jr. , Robert Ray Naish , David J. Nix , David James Ryan , David Stephenson
发明人： Brian G. Agee , Matthew Bromberg , Derek Gerlach , David Gibbons , James Timothy Golden , Minnic Ho , Elliott Hoole , Mary Jesse , Robert Lee Maxwell , Robert G. Mechaley, Jr. , Robert Ray Naish , David J. Nix , David James Ryan , David Stephenson
IPC分类号： H04B1/69
CPC分类号： H04B1/69 , H04B1/692 , H04B1/707 , H04B1/7107 , H04B7/04 , H04B2201/70702 , H04L5/0021 , H04L5/0026 , H04L5/0048 , H04L5/026 , H04L25/0228 , H04L25/03019 , H04L27/186 , H04L27/3416 , H04L2025/03414 , H04L2025/03426 , H04W16/14 , H04W88/08
摘要： A discrete multitone stacked-carrier spread spectrum communication method is based on frequency domain spreading including multiplication of a baseband signal by a set of superimposed, or stacked, complex sinusoid carrier waves. In a preferred embodiment, the spreading involves energizing the bins of a large Fast Fourier transform (FFT). This provides a considerable savings in computational complexity for moderate output FFT sizes. Point-to-multipoint and multipoint-to-multipoint (nodeless) network topologies are possible. A code-nulling method is included for interference cancellation and enhanced signal separation by exploiting the spectral diversity of the various sources. The basic method may be extended to include multielement antenna array nulling methods for interference cancellation and enhanced signal separation using spatial separation. Such methods permit directive and retrodirective transmission systems that adapt or can be adapted to the radio environment. Such systems are compatible with bandwidth-on-demand and higher-order modulation formats and use advanced adaptation algorithms. In a specific embodiment the spectral and spatial components of the adaptive weights are calculated in a unified operation based on the mathematical analogy between the spectral and spatial descriptions of the airlink.

6. 发明授权

US06643281B1 Synchronization preamble method for OFDM waveforms in a communications system 失效
标题翻译：通信系统中OFDM波形的同步前导码方法
公开(公告)号：US06643281B1
公开(公告)日：2003-11-04
申请号：US09035210
申请日：1998-03-05
申请人： David James Ryan
发明人： David James Ryan
IPC分类号： H04J306
CPC分类号： H04W56/0065 , H04B7/2668 , H04L5/026
摘要： A highly bandwidth-efficient communications method is disclosed that enables remote stations to synchronize in time and frequency to their serving base station. The invention enables a base station and its remote stations in a cell to synchronize in a noisy environment where signals interfere from other base stations and remote stations in other cells. The base station forms a forward synchronization burst that includes a plurality of tone frequencies arranged in a distinctive orthogonal frequency division multiplexed pattern unique to the base station. The unique pattern enables a remote station to distinguish the base station's bursts from other signals present in a crowded area. The distinctive orthogonal frequency division multiplexed pattern can be a Hadamard code pattern, for example. When the a base station has received a signal on a reverse link from a remote station, having significant interference, the base station selectively forms a request signal requesting the remote station to respond with a reverse synchronization burst that includes a plurality of tone frequencies arranged in the same distinctive orthogonal frequency division multiplexed pattern. The base station then transmits the forward synchronization burst and the request signal at a base station reference instant of time to the remote station. The reverse synchronization signals selectively occupy time slots in the transmission frame from the remote station to the base station, that would otherwise be occupied by channel control or traffic signals. Only when the base station requests the remote station to respond with a reverse synchronization burst, does this burst preempt the time slot from its other uses.
摘要翻译：公开了一种高带宽效率的通信方法，其使得远程站能够在时间和频率上与他们的服务基站同步。本发明使得小区中的基站及其远程站在噪声环境中同步，其中信号干扰其他小区中的其他基站和远程站。基站形成包括以基站特有的独特的正交频分复用模式排列的多个音调频率的前向同步突发。独特的模式使得远程站能够将基站的突发与存在于拥挤区域中的其他信号区分开。例如，独特的正交频分复用模式可以是Hadamard码模式。当基站已经从远程站的反向链路上接收到信号时，具有明显的干扰，基站选择性地形成请求信号，请求远端站用反向同步脉冲串进行响应，该反向同步突发包括布置在相同的独特正交频分复用模式。然后，基站在基站参考时刻将远程同步脉冲串和请求信号发送到远程站。反向同步信号选择性地占据从远程站到基站的传输帧中的时隙，否则这些时隙将被信道控制或业务信号所占据。只有当基站请求远程站用反向同步突发进行响应时，这个突发是否会从其他用途中抢占时隙。

7. 发明授权

US06621851B1 Priority messaging method for a discrete multitone spread spectrum communications system 失效
标题翻译：用于离散多音频扩频通信系统的优先消息传递方法
公开(公告)号：US06621851B1
公开(公告)日：2003-09-16
申请号：US09723337
申请日：2000-11-28
申请人： Brian G. Agee , Matthew Bromberg , Derek Gerlach , David Gibbons , James Timothy Golden , Minnie Ho , Elliott Hoole , Mary Jesse , Robert Lee Maxwell , Robert G. Mechaley, Jr. , Robert Ray Naish , David J. Nix , David James Ryan , David Stephenson
发明人： Brian G. Agee , Matthew Bromberg , Derek Gerlach , David Gibbons , James Timothy Golden , Minnie Ho , Elliott Hoole , Mary Jesse , Robert Lee Maxwell , Robert G. Mechaley, Jr. , Robert Ray Naish , David J. Nix , David James Ryan , David Stephenson
IPC分类号： H04B169
CPC分类号： H04B1/69 , H04B1/692 , H04B1/707 , H04B1/7107 , H04B7/04 , H04B2201/70702 , H04L5/0021 , H04L5/0026 , H04L5/0048 , H04L5/026 , H04L25/0228 , H04L25/03019 , H04L27/186 , H04L27/3416 , H04L2025/03414 , H04L2025/03426 , H04W16/14 , H04W88/08
摘要： A discrete multitone stacked-carrier spread spectrum communication method is based on frequency domain spreading including multiplication of a baseband signal by a set of superimposed, or stacked, complex sinusoid carrier waves. In a preferred embodiment, the spreading involves energizing the bins of a large Fast Fourier transform (FFT). This provides a considerable savings in computational complexity for moderate output FFT sizes. Point-to-multipoint and multipoint-to-multipoint (nodeless) network topologies are possible. A code-nulling method is included for interference cancellation and enhanced signal separation by exploiting the spectral diversity of the various sources. The basic method may be extended to include multielement antenna array nulling methods for interference cancellation and enhanced signal separation using spatial separation. Such methods permit directive and retrodirective transmission systems that adapt or can be adapted to the radio environment. Such systems are compatible with bandwidth-on-demand and higher-order modulation formats and use advanced adaptation algorithms. In a specific embodiment the spectral and spatial components of the adaptive weights are calculated in a unified operation based on the mathematical analogy between the spectral and spatial descriptions of the airlink.
摘要翻译：离散多媒体叠层载波扩频通信方法是基于频域扩展，包括基带信号乘以叠加的或叠加的复数正弦波载波的集合。在优选实施例中，扩展涉及激励大的快速傅立叶变换（FFT）的信息仓。这为中等输出FFT大小节省了大量的计算复杂度。点对多点和多点到多点（无节点）网络拓扑是可能的。通过利用各种光源的光谱多样性，可以包括一个代码归零方法用于干扰消除和增强的信号分离。基本方法可以扩展为包括用于干扰消除的多元天线阵列归零方法和使用空间分离的增强信号分离。这种方法允许适应或可以适应于无线电环境的指导和逆向传输系统。这样的系统与带宽按需和高阶调制格式兼容，并且使用高级适配算法。在具体实施例中，基于空中链路的频谱和空间描述之间的数学类比，以统一的操作来计算自适应权重的频谱和空间分量。

8. 发明授权

US6134261A FDD forward link beamforming method for a FDD communications system 失效
公开(公告)号：US6134261A
公开(公告)日：2000-10-17
申请号：US35286
申请日：1998-03-05
申请人： David James Ryan
发明人： David James Ryan
IPC分类号： H04B7/06 , H04B7/12 , H04K1/10
CPC分类号： H04B7/12 , H04B7/0619 , H04B7/0617
摘要： A highly bandwidth-efficient communications method is disclosed, to maximize the signal-to-interference-noise ratio (SINR) of transmissions from a base station to a remote station in a wireless communications system. The method is used for base stations that have a plurality of antenna elements that are capable of spatial beam steering by altering the relative phase of transmission of signals from the respective elements. The method of the invention is based on providing calibration frames that sequentially transmit calibration bursts from the respective antenna elements for a particular destination remote station. The calibration bursts include a plurality of tone frequencies arranged in a distinctive orthogonal frequency division multiplexed pattern unique to the base station. The unique pattern enables a remote station to distinguish the base station's bursts from other signals present in a crowded area. The distinctive orthogonal frequency division multiplexed pattern can be a Hadamard code pattern, for example. The plurality of calibration bursts are part of a transmission frame having a reference phase. The remote station receives the calibration bursts and measures values related to the relative phase difference between the calibration bursts and the reference phase. The remote station also measures the SINR of the received bursts. The measured values are then prepared as a sampling data message that is transmitted by the remote station back to the base station. The base station then calculates therefrom a beam steering correction to modify the relative phase difference. This beam steering correction is then applied to traffic bursts that are respectively transmitted from the plurality of antenna elements at the base station, to steer the plurality of traffic bursts toward the remote station. The beam steering correction steers the traffic bursts to maximize the signal-to-interference-noise ratio (SINR) of the traffic bursts at the remote station.

9. 发明授权

US06639935B2 Out of channel cyclic redundancy code method for a discrete multitone spread spectrum communications system 失效
公开(公告)号：US06639935B2
公开(公告)日：2003-10-28
申请号：US09902730
申请日：2001-07-12
申请人： David Gibbons , Robert Lee Maxwell , David James Ryan
发明人： David Gibbons , Robert Lee Maxwell , David James Ryan
IPC分类号： H04B169
CPC分类号： H04L1/0003 , H04B1/69 , H04L1/0045 , H04L1/0057 , H04L1/16
摘要： A new method makes the most efficient use of the scarce spectral bandwidth in a wireless discrete multitone spread spectrum communications system. Each remote station and each base station in the network prepares an error detection field, such as a cyclic redundancy code (CRC), on each block of data to be transmitted over the traffic channels. The sending station prepares an error detection message for transmission over the link control channel of the network. The sending station prepares the error detection message by forming a link control channel vector that will be spread using the discrete multitone spread spectrum (DMT-SS) protocol to distribute the data message over a plurality of discrete tone frequencies, forming a spread signal for the link control channel. A link control channel is associated with communications session using the traffic channels. The instant of transmission of the error detection message is allowed to be different from the instant of transmission of the data message. This permits the error detection messages to be transmitted when capacity is available on the link control channel. The receiving station buffers the error detection messages it receives from the link control channel, so that they are accessible by their block numbers. When the receiving station receives a data message on the traffic channel, it performs a CRC calculation on the data block in the message to obtain a resulting new CRC value. The new CRC value is also buffered at the receiving station with the block number so that it is accessible by its block number. Then, when both the received error message and the new CRC value are both available at the receiving station, they are matched by their common block number. The received CRC value in the error detection message is compared with the new CRC computed from the received data block. If the comparison determines that there is a difference in the values, then an error signal is generated.

10. 发明授权

US06480522B1 Method of polling second stations for functional quality and maintenance data in a discrete multitone spread spectrum communications system 失效
标题翻译：在离散多音频扩频通信系统中轮询第二站功能质量和维护数据的方法
公开(公告)号：US06480522B1
公开(公告)日：2002-11-12
申请号：US09723338
申请日：2000-11-28
申请人： Elliott Hoole , Mary Jesse , Robert G. Mechaley, Jr. , David James Ryan , David Stephenson
发明人： Elliott Hoole , Mary Jesse , Robert G. Mechaley, Jr. , David James Ryan , David Stephenson
IPC分类号： A61F206
CPC分类号： H04B1/69 , H04B1/692 , H04B1/707 , H04B1/7107 , H04B7/04 , H04B2201/70702 , H04L5/0021 , H04L5/0026 , H04L5/0048 , H04L5/026 , H04L25/0228 , H04L25/03019 , H04L27/186 , H04L27/3416 , H04L2025/03414 , H04L2025/03426 , H04W16/14 , H04W88/08
摘要： A discrete multitone stacked-carrier spread spectrum communication method is based on frequency domain spreading including multiplication of a baseband signal by a set of superimposed, or stacked, complex sinusoid carrier waves. In a preferred embodiment, the spreading involves energizing the bins of a large Fast Fourier transform (FFT). This provides a considerable savings in computational complexity for moderate output FFT sizes. Point-to-multipoint and multipoint-to-multipoint (nodeless) network topologies are possible. A code-nulling method is included for interference cancellation and enhanced signal separation by exploiting the spectral diversity of the various sources. The basic method may be extended to include multielement antenna array nulling methods for interference cancellation and enhanced signal separation using spatial separation. Such methods permit directive and retrodirective transmission systems that adapt or can be adapted to the radio environment. Such systems are compatible with bandwidth-on-demand and higher-order modulation formats and use advanced adaptation algorithms. In a specific embodiment the spectral and spatial components of the adaptive weights are calculated in a unified operation based on the mathematical analogy between the spectral and spatial descriptions of the airlink.
摘要翻译：离散多媒体叠层载波扩频通信方法是基于频域扩展，包括基带信号乘以叠加的或叠加的复数正弦波载波的集合。在优选实施例中，扩展涉及激励大的快速傅立叶变换（FFT）的信息仓。这为中等输出FFT大小节省了大量的计算复杂度。点对多点和多点到多点（无节点）网络拓扑是可能的。通过利用各种光源的光谱多样性，可以包括一个代码归零方法用于干扰消除和增强的信号分离。基本方法可以扩展为包括用于干扰消除的多元天线阵列归零方法和使用空间分离的增强信号分离。这种方法允许适应或可以适应于无线电环境的指导和逆向传输系统。这样的系统与带宽按需和高阶调制格式兼容，并且使用高级适配算法。在具体实施例中，基于空中链路的频谱和空间描述之间的数学类比，以统一的操作来计算自适应权重的频谱和空间分量。

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