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    Single-carrier to multi-carrier wireless architecture
    2.
    再颁专利
    Single-carrier to multi-carrier wireless architecture 有权
    单载波到多载波无线架构

    公开(公告)号：USRE43670E1

    公开(公告)日：2012-09-18

    申请号：US12319707

    申请日：2009-01-09

    申请人： Mark A. Webster ,  Michael J. Seals

    发明人： Mark A. Webster ,  Michael J. Seals

    IPC分类号： H04L27/28

    CPC分类号： H04L25/0226 ,  H04L27/0008 ,  H04L27/2613 ,  H04W72/00 ,  H04W84/00

    摘要： A Baseband receiver including a CIR estimate block, gain, phase and timing loops, a CMF, a single-carrier processor and a multi-carrier processor. The CIR estimate block generates an impulse response signal based on a receive signal that is a single-carrier signal or a single-carrier segment of a mixed carrier signal. The single-carrier segment has a spectrum that approximates a multi-carrier spectrum. The gain, phase and timing loops adjust gain, phase, frequency and timing to provide an adjusted receive signal. The CMF filters the adjusted receive signal according to the impulse response signal. The single-carrier processor processes the adjusted and filtered receive signal to resolve a single-carrier segment of a mixed carrier signal. The single-carrier processor detects a mixed carrier mode indication in a single-carrier segment and asserts a start indication. The multi-carrier processor processes a multi-carrier segment of a mixed carrier signal in response to assertion of the start indication.

    摘要翻译： 包括CIR估计块，增益，相位和定时环路的基带接收机，CMF，单载波处理器和多载波处理器。 CIR估计块基于作为混合载波信号的单载波信号或单载波段的接收信号产生脉冲响应信号。 单载波段具有近似多载波频谱的频谱。 增益，相位和定时回路调整增益，相位，频率和时序，以提供调整的接收信号。 CMF根据脉冲响应信号对调整后的接收信号进行滤波。 单载波处理器处理经调整和滤波的接收信号以解析混合载波信号的单载波段。 单载波处理器检测单载波段中的混合载波模式指示，并断言起始指示。 响应于断言启动指示，多载波处理器处理混合载波信号的多载波段。

    Legacy compatible spatial multiplexing systems and methods
    3.
    发明授权
    Legacy compatible spatial multiplexing systems and methods 有权
    遗留兼容的空间复用系统和方法

    公开(公告)号：US07643453B2

    公开(公告)日：2010-01-05

    申请号：US11159812

    申请日：2005-06-22

    申请人： Mark A. Webster ,  Michael J. Seals

    发明人： Mark A. Webster ,  Michael J. Seals

    IPC分类号： H04W4/00

    CPC分类号： H04L27/2613 ,  H04B7/02 ,  H04B7/0697 ,  H04W24/00

    摘要： Embodiments of legacy compatible spatial multiplexing systems and methods are disclosed. One method embodiment, among others, comprises receiving long training symbols and cyclic shifted long training symbols corresponding to legacy preamble portions of packets corresponding to first and second transmit signals, receiving long training symbols and inverted cyclic shifted long training symbols corresponding to spatial multiplexing portions of packets corresponding to first and second transmit signals, and combining the symbols corresponding to the first and second transmit antennas to estimate the respective channels.

    摘要翻译： 公开了传统兼容空间复用系统和方法的实施例。 一个方法实施例包括接收对应于与第一和第二发射信号相对应的分组的传统前导码部分的长训练符号和循环移位的长训练符号，接收对应于空间复用部分的长训练符号和反向循环移位长训练符号 分组对应于第一和第二发射信号，并组合对应于第一和第二发射天线的符号以估计相应的信道。

    Cyclic diversity systems and methods
    4.
    发明授权
    Cyclic diversity systems and methods 有权
    循环多样性系统和方法

    公开(公告)号：US07623439B2

    公开(公告)日：2009-11-24

    申请号：US11121661

    申请日：2005-05-04

    申请人： Mark A. Webster ,  Michael J. Seals

    发明人： Mark A. Webster ,  Michael J. Seals

    IPC分类号： H04J11/00

    CPC分类号： H04L27/2602 ,  H04B7/0671

    摘要： Embodiments of cyclic diversity systems and methods are disclosed. One system embodiment, among others, comprises a logic configured to cyclically advance, or perform the periodic equivalent of the same, one or more sections of an orthogonal frequency division multiplexing (OFDM) packet relative to the OFDM packet to be transmitted on a first transmit antenna, the packet having the one or more cyclically advanced sections to be transmitted on a second transmit antenna, the duration of the cyclic advance having a duration less than a guard interval.

    摘要翻译： 公开了循环分集系统和方法的实施例。 一个系统实施例，其中包括一个逻辑，其被配置为相对于要在第一传输上发送的OFDM分组循环地前进或执行正交频分复用（OFDM）分组的相同的一个或多个部分的周期性等价物 天线，具有要在第二发射天线上发送的一个或多个循环高级部分的分组，循环前进的持续时间具有小于保护间隔的持续时间。

    Dual packet configuration for wireless communications
    5.
    发明授权
    Dual packet configuration for wireless communications 有权
    用于无线通信的双包配置

    公开(公告)号：US08194530B2

    公开(公告)日：2012-06-05

    申请号：US11849579

    申请日：2007-09-04

    申请人： Mark A. Webster ,  Steven D. Halford ,  Richard D. Roberts

    发明人： Mark A. Webster ,  Steven D. Halford ,  Richard D. Roberts

    IPC分类号： H04J9/00

    CPC分类号： H04L27/2602 ,  H04L27/0008 ,  H04W84/12 ,  H04W88/06 ,  H04W92/02

    摘要： A dual packet configuration for wireless communications including a first portion that is modulated according to a serial modulation and a second portion that is modulated according to a parallel modulation. The serial modulation may be DSSS whereas the parallel modulation may be OFDM. The first portion may include a header, which may further include an OFDM mode bit and a length field indicating the duration the second portion. The first portion may be in accordance with 802.11b to enable dual mode devices to coexist and communicate in the same area as standard 802.11b devices. The dual mode devices can communicate at different or higher data rates without interruption from the 802.11b devices. The packet configuration may include an OFDM signal symbol which further includes a data rate section and a data count section. In this manner, data rates the same as or similar to the 802.11a data rates may be specified between dual mode devices. The first and second portions may be based on the same or different clock fundamentals. For OFDM, the number of subcarriers, pilot tones and guard interval samples may be modified independently or in combination to achieve various embodiments. Also, data subcarriers may be discarded and replaced with pilot tones for transmission. The receiver regenerates the discarded data based on received data, such as using ECC techniques.

    摘要翻译： 一种用于无线通信的双包配置，包括根据串行调制被调制的第一部分和根据并行调制被调制的第二部分。 串行调制可以是DSSS，而并行调制可以是OFDM。 第一部分可以包括报头，报头还可以包括OFDM模式位和指示第二部分的持续时间的长度字段。 第一部分可以符合802.11b，以使得双模式设备能够在与标准802.11b设备相同的区域中共存和通信。 双模设备可以以不同或更高的数据速率进行通信，而不会中断802.11b设备。 分组配置可以包括还包括数据速率部分和数据计数部分的OFDM信号符号。 以这种方式，可以在双模式设备之间指定与802.11a数据速率相同或类似的数据速率。 第一和第二部分可以基于相同或不同的时钟基本原理。 对于OFDM，可以独立地或组合地修改子载波数，导频音和保护间隔样本的数量以实现各种实施例。 此外，可以丢弃数据副载波并用导频音来代替传输。 接收机基于接收的数据（例如使用ECC技术）重新生成丢弃的数据。

    Systems and methods for transmitter diversity
    7.
    发明授权
    Systems and methods for transmitter diversity 有权
    用于发射机分集扩展的系统和方法

    公开(公告)号：US07949068B2

    公开(公告)日：2011-05-24

    申请号：US12698090

    申请日：2010-02-01

    申请人： Mark A Webster ,  Deniz Rende ,  Jim E. Petranovich

    发明人： Mark A Webster ,  Deniz Rende ,  Jim E. Petranovich

    IPC分类号： H04L27/00

    CPC分类号： H04B7/0697 ,  H04B7/0671 ,  H04B7/0691

    摘要： Methods and systems for transmitter diversity expansion are provided. The methods and systems include steps and modules for applying a number of data streams (K) to a larger number of antennas (N). This is performed by applying each of the data streams to a single base antenna, such that K data streams are applied to K base antennas, and by shifting and combining the K data streams to produce N-K data streams to apply to N-K extension antennas.

    摘要翻译： 提供了发射机分集扩展的方法和系统。 所述方法和系统包括用于将数个数据流（K）应用于更大数量的天线（N）的步骤和模块。 这通过将每个数据流应用于单个基本天线来执行，使得K个数据流被应用于K个基本天线，并且通过移位和组合K个数据流以产生应用于N-K个扩展天线的N-K个数据流。

    Systems and Methods for Transmitter Diversity
    9.
    发明申请
    Systems and Methods for Transmitter Diversity 有权
    发射机多样性的系统和方法

    公开(公告)号：US20100166107A1

    公开(公告)日：2010-07-01

    申请号：US12698090

    申请日：2010-02-01

    申请人： Mark A. Webster ,  Deniz Rende ,  Jim E. Petranovich

    发明人： Mark A. Webster ,  Deniz Rende ,  Jim E. Petranovich

    IPC分类号： H04L27/00

    CPC分类号： H04B7/0697 ,  H04B7/0671 ,  H04B7/0691

    摘要： Methods and systems for transmitter diversity expansion are provided. The methods and systems include steps and modules for applying a number of data streams (K) to a larger number of antennas (N). This is performed by applying each of the data streams to a single base antenna, such that K data streams are applied to K base antennas, and by shifting and combining the K data streams to produce N-K data streams to apply to N-K extension antennas.

    摘要翻译： 提供了发射机分集扩展的方法和系统。 所述方法和系统包括用于将数个数据流（K）应用于更大数量的天线（N）的步骤和模块。 这通过将每个数据流应用于单个基本天线来执行，使得K个数据流被应用于K个基本天线，并且通过移位和组合K个数据流以产生应用于N-K个扩展天线的N-K个数据流。