公开(公告)号：US07149238B2

公开(公告)日：2006-12-12

申请号：US11409437

申请日：2006-04-21

Applicant: 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

Inventor： 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: H04B1/69

CPC classification number: 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

Abstract: 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.

公开(公告)号：US06621851B1

公开(公告)日：2003-09-16

申请号：US09723337

申请日：2000-11-28

Applicant: 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

Inventor： 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: H04B169

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06553237B1

公开(公告)日：2003-04-22

申请号：US09204046

申请日：1998-12-02

Applicant: Stephanie H. Cantwell ,  David J. Nix ,  David A. Rostowsky ,  Adrian M. Yip

Inventor： Stephanie H. Cantwell ,  David J. Nix ,  David A. Rostowsky ,  Adrian M. Yip

IPC: H04B7005

CPC classification number: H04W74/0833

Abstract: A method and an apparatus provide for controlling a remote unit's requests to access network resources in a wireless communication network. The method and apparatus scale back the frequency with which the remote unit attempts to establish a connection with a base unit, which connection would provide dial tone to a communication device associated with a remote unit. In accordance with the method, with each unsuccessful attempt to establish a connection with the base unit a retry timing interval is extended, thereby throttling back the number of establishment attempts by the remote unit.

Abstract translation: 一种方法和装置提供用于控制远程单元在无线通信网络中访问网络资源的请求。 该方法和装置缩小远程单元尝试与基站建立连接的频率，该连接将向与远程单元相关联的通信设备提供拨号音。 根据该方法，随着与基本单元建立连接的每次不成功的尝试，重试定时间隔被扩展，从而调节远程单元的建立尝试次数。

公开(公告)号：US07095708B1

公开(公告)日：2006-08-22

申请号：US09594467

申请日：2000-06-14

Applicant: 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

Inventor： 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: H04J11/00

CPC classification number: H04L27/2627 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/143 ,  H04L27/2604 ,  H04L27/34

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06359923B1

公开(公告)日：2002-03-19

申请号：US08993721

申请日：1997-12-18

Applicant: 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

Inventor： 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: A61F206

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07106781B2

公开(公告)日：2006-09-12

申请号：US09920903

申请日：2001-08-03

Applicant: 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

Inventor： 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: H04B1/69 ,  H04B7/216

CPC classification number: 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

Abstract: 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.

公开(公告)号：US06944299B1

公开(公告)日：2005-09-13

申请号：US09204048

申请日：1998-12-02

Applicant: Padma P. Mallela ,  Robert Lee Maxwell ,  David J. Nix ,  Gregory J. Veintimilla ,  Adrian M. Yip

Inventor： Padma P. Mallela ,  Robert Lee Maxwell ,  David J. Nix ,  Gregory J. Veintimilla ,  Adrian M. Yip

IPC: H04L9/00 ,  H04N7/167

CPC classification number: H04L9/12 ,  H04N21/2347 ,  H04N21/43637

Abstract: An apparatus and method provide for synchronized operation of encryption processes at two remote communication terminals. A first one of the terminals detects information associated with a current time during the establishment of a connection between the two terminals. The current time information is then utilized to create a start encryption time. That start encryption time information is transmitted from the first terminal to the second terminal. Both terminals then monitor the passage of time and begin encryption in a synchronous manner when the current time matches the start encryption time.

Abstract translation: 一种装置和方法提供两个远程通信终端上的加密过程的同步操作。 在建立两个终端之间的连接时，终端中的第一个检测与当前时间相关联的信息。 然后利用当前时间信息来创建开始加密时间。 该开始加密时间信息从第一终端发送到第二终端。 两个终端随后监视时间的流逝，并在当前时间与开始加密时间匹配时以同步方式开始加密。