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    Optimal use of request access TDMA slots for automatic level control
    22.
    发明授权
    Optimal use of request access TDMA slots for automatic level control 有权
    最佳使用请求接入TDMA时隙进行自动电平控制

    公开(公告)号：US07065378B1

    公开(公告)日：2006-06-20

    申请号：US10852861

    申请日：2004-05-24

    Applicant: Ali Raissinia ,  Gregory G. Raleigh ,  Vincent K. Jones, IV ,  Michael Pollack

    Inventor： Ali Raissinia ,  Gregory G. Raleigh ,  Vincent K. Jones, IV ,  Michael Pollack

    IPC: H04B7/00 ,  H04Q7/20

    CPC classification number: H04W52/50 ,  H04W52/223 ,  H04W52/60

    Abstract: Systems and methods for controlling subscriber unit power level using power measurements made on access request transmissions. Since a subscriber unit access request typically precedes a subscriber unit data transmission by a relatively short period of time, the data transmission power level will then be based on a recent power measurement. The access request may also trigger a sequence of power control steps including the transmission of special upstream power measurement transmissions which can be used as the basis for even more accurate power control. These power control features are particularly useful in fading environments such as found in a wireless system.

    Abstract translation: 使用在接入请求传输上进行的功率测量来控制用户单元功率电平的系统和方法。 由于用户单元访问请求通常在用户单元数据传输之前相对较短的时间段，所以数据传输功率电平将基于最近的功率测量。 访问请求还可以触发一系列功率控制步骤，包括传输特殊的上行功率测量传输，这些传输可以用作更精确的功率控制的基础。 这些功率控制特征在诸如无线系统中的衰落环境中特别有用。

    MAC protocol employing multiple data rates
    26.
    发明申请
    MAC protocol employing multiple data rates 有权
    MAC协议采用多种数据速率

    公开(公告)号：US20050089009A1

    公开(公告)日：2005-04-28

    申请号：US10956740

    申请日：2004-10-01

    Applicant: Gregory Raleigh ,  Vincent Jones ,  Michael Pollack

    Inventor： Gregory Raleigh ,  Vincent Jones ,  Michael Pollack

    IPC: H04J4/00 ,  H04L1/00 ,  H04L12/28 ,  H04L12/56 ,  H04W28/22 ,  H04W28/26 ,  H04W72/04 ,  H04W74/00 ,  H04L12/66 ,  H04J3/24

    CPC classification number: H04L12/2898 ,  H04J4/00 ,  H04L1/0002 ,  H04L1/0025 ,  H04L12/2856 ,  H04L47/15 ,  H04L47/70 ,  H04L47/788 ,  H04L47/801 ,  H04L47/805 ,  H04L47/824 ,  H04W28/22 ,  H04W28/26 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/00

    Abstract: Method and apparatus for combining high data rate traffic and low data rate traffic on a common transmission medium while maximizing efficient use of available spectrum. Since spectrum is an economically valuable resource and transport of data generates revenue, the present invention directly leads to more profitable network operation. The disclosed systems are applicable to both wired and wireless transmission media. In one embodiment, a bandwidth reservation scheme provides that data rate may be varied so that when a particular data communication device is allocated a frame, it is also assigned a data rate for use in that frame. Because bandwidth usage varies with data rate, the division of available spectrum into channels for use by individual data communication devices may also vary among frames.

    Abstract translation: 用于在普通传输介质上组合高数据速率业务和低数据速率业务同时最大限度地利用可用频谱的方法和装置。 由于频谱是一种经济上有价值的资源，数据的传输产生收益，本发明直接导致更有利可图的网络运行。 所公开的系统适用于有线和无线传输介质。 在一个实施例中，带宽预留方案提供数据速率可以被改变，使得当特定的数据通信设备被分配一个帧时，它也被分配用于该帧的数据速率。 由于带宽使用随数据速率而变化，所以将可用频谱划分成各个数据通信设备使用的信道也可能在帧之间变化。

    Realtime power control in OFDM systems
    27.
    发明授权
    Realtime power control in OFDM systems 有权
    OFDM系统中的实时功率控制

    公开(公告)号：US06795426B1

    公开(公告)日：2004-09-21

    申请号：US09603237

    申请日：2000-06-23

    Applicant: Gregory G. Raleigh ,  Ali Raissinia ,  Vincent K. Jones, IV ,  Michael Pollack

    Inventor： Gregory G. Raleigh ,  Ali Raissinia ,  Vincent K. Jones, IV ,  Michael Pollack

    IPC: H04J300

    CPC classification number: H04W24/00 ,  H04L27/2647 ,  H04W28/18 ,  H04W48/16 ,  H04W52/54 ,  H04W80/02

    Abstract: Systems and methods for efficiently transmitting power level information in a point to multipoint wireless system. Multiple subscriber units may transmit indications of their power level within a shared burst where one or more subchannels are allocated to each subscriber unit. The burst holding the power level information may be understood by the MAC layer to be a data burst. In this way, a wireline MAC protocol may be applied to wireless applications.

    Abstract translation: 在点对多点无线系统中有效传输功率电平信息的系统和方法。 多个用户单元可以在共享脉冲串内发送其功率电平的指示，其中一个或多个子信道被分配给每个用户单元。 保持功率电平信息的突发可以被MAC层理解为数据突发。 以这种方式，有线MAC协议可以应用于无线应用。

    Optimal filtering and upconversion in OFDM systems
    28.
    发明授权
    Optimal filtering and upconversion in OFDM systems 有权
    OFDM系统中的最优滤波和上变频

    公开(公告)号：US06657950B1

    公开(公告)日：2003-12-02

    申请号：US09253152

    申请日：1999-02-19

    Applicant: Vincent K. Jones, IV ,  James M. Gardner ,  Michael Pollack

    Inventor： Vincent K. Jones, IV ,  James M. Gardner ,  Michael Pollack

    IPC: H04J1100

    CPC classification number: H04L25/03038 ,  H04L25/0232 ,  H04L27/2644 ,  H04L2025/03414

    Abstract: Systems and methods for converting a baseband OFDM signal to an IF signal while minimizing lengthening of the impulse response duration experienced by the OFDM signal. A conversion technique according to the present invention provides sufficient filtering to limit the effects of spurious frequency domain components caused by transitions between successive OFDM bursts. In one embodiment, the filtering is provided by a combination of a finite impulse response (FIR) filter having non-linear phase characteristics and a cyclic convolution filter. Conversion from the frequency domain into the time domain, upsampling, and cyclic filtering may be combined into one operation.

    Abstract translation: 用于将基带OFDM信号转换为IF信号同时最小化由OFDM信号经历的脉冲响应持续时间延长的系统和方法。 根据本发明的转换技术提供足够的滤波以限制由连续OFDM突发之间的转换引起的寄生频域分量的影响。 在一个实施例中，通过具有非线性相位特性的有限脉冲响应（FIR）滤波器和循环卷积滤波器的组合来提供滤波。 从频域到时域的转换，上采样和循环滤波可以组合成一个操作。

    Systems and methods for improved medium access control messaging
    29.
    发明授权
    Systems and methods for improved medium access control messaging 有权
    改进介质访问控制消息传递的系统和方法

    公开(公告)号：US06621872B1

    公开(公告)日：2003-09-16

    申请号：US09282516

    申请日：1999-03-31

    Applicant: Vincent K. Jones ,  Michael Pollack ,  Gregory G. Raleigh

    Inventor： Vincent K. Jones ,  Michael Pollack ,  Gregory G. Raleigh

    IPC: H04L2302

    CPC classification number: H04L1/0065 ,  H04L1/0042 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/007

    Abstract: Systems and methods for communicating medium access control (MAC) data without errors. Different encoding processes may be used to encode MAC data and data unrelated to MAC. The encoding processes used for MAC data employ more redundancy and are therefore capable of transmitting data without errors in more severe conditions than the encoding processes used for non-MAC data. Both MAC data and non-MAC data may be represented as a series of so-called symbols where each symbol is a complex value used to modulate a sinusoidal carrier signal. MAC data transmissions may employ a set of symbols having more widely spaced complex values than the symbol set used for non-MAC data transmissions. While the receiver is receiving MAC data, it may more easily distinguish which symbols have been sent, even when the symbols have been heavily corrupted with noise and interference. Thus network operation may be properly coordinated even in the presence of severe degradation of data transmission quality.

    Abstract translation: 用于传送媒体访问控制（MAC）数据的系统和方法没有错误。 可以使用不同的编码过程对MAC数据和与MAC无关的数据进行编码。 用于MAC数据的编码处理使用更多的冗余，并且因此能够在比用于非MAC数据的编码处理更恶劣的条件下传输数据而不发生错误。 MAC数据和非MAC数据都可以表示为一系列所谓的符号，其中每个符号是用于调制正弦载波信号的复数值。 MAC数据传输可以采用具有比用于非MAC数据传输的符号集具有更广泛间隔的复数值的一组符号。 当接收机正在接收MAC数据时，即使当符号已经被噪声和干扰严重损坏时，它可以更容易地区分已发送哪些符号。 因此，即使在数据传输质量严重恶化的情况下，也可以适当地协调网络操作。

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