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    FEC in cognitive multi-user OFDMA
    1.
    发明申请
    FEC in cognitive multi-user OFDMA 有权
    认知多用户OFDMA中的FEC

    公开(公告)号：US20080240267A1

    公开(公告)日：2008-10-02

    申请号：US11731269

    申请日：2007-03-30

    申请人： Amer Hassan ,  Christian Huitema ,  Wayne Stark ,  Yunnan Wu ,  Philip Chou

    发明人： Amer Hassan ,  Christian Huitema ,  Wayne Stark ,  Yunnan Wu ,  Philip Chou

    IPC分类号： H04L27/28

    CPC分类号： H04W72/08 ,  H04L1/0045 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0041 ,  H04L5/0046 ,  H04L5/0058 ,  H04L5/006 ,  H04L2001/0093

    摘要： A multiuser scheme allowing for a number of users, sets of user, or carriers to share one or more channels is provided. In the invention, the available channel bandwidth is subdivided into a number of equal-bandwidth subchannels according to standard OFDM practice. A transmitter transmits data on a set of OFDM subchannels that need not be contiguous in the spectrum or belong to the same OFDM channel. A receiver receives and decodes the data and detects errors on subchannels. The receiver then broadcasts the identity of those subchannels on which the error rate exceeds a specific threshold, and the transmitter may select different subchannels for transmission based on this information.

    摘要翻译： 提供允许多个用户，一组用户或运营商共享一个或多个信道的多用户方案。 在本发明中，可用信道带宽根据标准OFDM实践被细分为多个等带宽子信道。 发射机在不需要在频谱中连续或属于相同OFDM信道的一组OFDM子信道上发送数据。 接收器接收并解码数据并检测子信道上的错误。 然后，接收机广播差错率超过特定阈值的子信道的身份，并且发射机可以基于该信息来选择用于发送的不同子信道。

    Predicting degradation of a communication channel below a threshold based on data transmission errors
    2.
    发明申请
    Predicting degradation of a communication channel below a threshold based on data transmission errors 有权
    基于数据传输错误预测通信信道的劣化低于阈值

    公开(公告)号：US20070124625A1

    公开(公告)日：2007-05-31

    申请号：US11290144

    申请日：2005-11-30

    申请人： Amer Hassan ,  Deyun Wu ,  Christian Huitema ,  Vishesh Parikh

    发明人： Amer Hassan ,  Deyun Wu ,  Christian Huitema ,  Vishesh Parikh

    IPC分类号： G06F11/00

    CPC分类号： G06F11/076 ,  G06F11/079 ,  H04L1/0009 ,  H04L1/002 ,  H04L1/20 ,  H04L43/50

    摘要： Applicants have discovered that error detection techniques, such as Forward Error Correction techniques, may be used to predict the degradation below a certain threshold of an ability to accurately convey information on a communication channel, for example, to predict a failure of the communication channel. In response, transmission and/or reception of information on the channel may be adapted, for example, to prevent the degradation below the threshold, e.g., prevent channel failure. Predicting the degradation may be based, at least in part, on data transmission error information corresponding to one or more blocks of information received on the channel and may include determining an error rate pattern over time. Based on these determinations, the degradation below the threshold may be predicted and the transmission and/or reception adapted. Adapting may include initiating use of a different error encoding scheme and/or using an additional communication channel to convey information.

    摘要翻译： 申请人已经发现，诸如前向纠错技术之类的错误检测技术可用于预测低于在通信信道上精确传送信息的能力的某个阈值以下的劣化，例如，以预测通信信道的故障。 作为响应，信道上的信息的传输和/或接收可以适应于例如防止劣化到阈值以下，例如防止信道故障。 可以至少部分地基于与信道上接收的一个或多个信息块相对应的数据传输错误信息来预测劣化，并且可以包括随时间确定错误率模式。 基于这些确定，可以预测低于阈值的劣化，并且传输和/或接收适应。 适应可以包括启动使用不同的错误编码方案和/或使用附加通信信道来传达信息。

    Adapting a communication network to varying conditions
    3.
    发明申请
    Adapting a communication network to varying conditions 有权
    将通信网络适应不同的条件

    公开(公告)号：US20070104218A1

    公开(公告)日：2007-05-10

    申请号：US11268800

    申请日：2005-11-08

    申请人： Amer Hassan ,  Christian Huitema ,  Thomas Kuehnel ,  Vishesh Parikh

    发明人： Amer Hassan ,  Christian Huitema ,  Thomas Kuehnel ,  Vishesh Parikh

    IPC分类号： H04J3/22

    CPC分类号： H04W36/06 ,  H04L1/0025 ,  H04L1/22 ,  H04W48/18 ,  H04W88/06 ,  H04W88/10

    摘要： Systems and methods are disclosed for adapting a communication system to varying conditions. Using some form of discovery protocol, the communication standards supported by at least two communicants are determined. Each communicant may then periodically monitor the quality of the channel established by the communication standard and dynamically select a set of one or more communication standards to use for communicating. Further, when communicants share common non-standard parameterized implementations of communication standards, changes to the protocols which the communication standards comprise can be used to add options for a more dynamic response to changing conditions than is possible when adhering only to an established communication standard.

    摘要翻译： 公开了用于使通信系统适应不同条件的系统和方法。 使用某种形式的发现协议，确定由至少两个通信者支持的通信标准。 然后，每个通信者可以周期性地监视由通信标准建立的信道的质量，并动态地选择一组用于通信的通信标准。 此外，当通信者共享通信标准的公共非标准参数化实现时，可以使用通信标准包括的协议的改变来增加用于对仅在遵循建立的通信标准的情况下可变的条件的更多动态响应的选项。

    OFDMA based on cognitive radio
    5.
    发明申请
    OFDMA based on cognitive radio 有权
    OFDMA基于认知无线电

    公开(公告)号：US20070248173A1

    公开(公告)日：2007-10-25

    申请号：US11410969

    申请日：2006-04-25

    申请人： Amer Hassan ,  Christian Huitema

    发明人： Amer Hassan ,  Christian Huitema

    IPC分类号： H04L27/28 ,  H04K1/10

    CPC分类号： H04L5/0007 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0064

    摘要： A multiuser scheme allowing for a number of users, sets of user, or carriers to share one or more channels is provided. In the invention, the available channel bandwidth is subdivided into a number of equal-bandwidth subchannels according to standard OFDM practice. The transmitter is informed by an application that it needs to transmit data a particular rate. The transmitter determines the minimum number of subchannels and maximum energy (or noise) threshold for each subchannel necessary to achieve that data rate and selects a set of subchannels matching those requirements. The subchannels need not be contiguous in the spectrum or belong to the same channel. Once the transmitter has selected the required number of subchannels, it begins transmitting simultaneously on those subchannels across the entire bandwidth used by those subchannels.

    摘要翻译： 提供允许多个用户，一组用户或运营商共享一个或多个信道的多用户方案。 在本发明中，可用信道带宽根据标准OFDM实践被细分为多个等带宽子信道。 发射机被应用程序通知它需要以特定速率传输数据。 发射机确定实现该数据速率所需的每个子信道的子信道的最小数目和最大能量（或噪声）阈值，并选择一组符合这些要求的子信道。 子信道不需要在频谱中是连续的或属于同一信道。 一旦发射机选择了所需数量的子信道，它将在这些子信道使用的整个带宽上在这些子信道上同时开始传输。

    Modularly constructing a software defined radio
    6.
    发明申请
    Modularly constructing a software defined radio 有权
    模块化地构建软件定义的无线电

    公开(公告)号：US20070078924A1

    公开(公告)日：2007-04-05

    申请号：US11239945

    申请日：2005-09-30

    申请人： Amer Hassan ,  Christian Huitema ,  Vishesh Parikh

    发明人： Amer Hassan ,  Christian Huitema ,  Vishesh Parikh

    IPC分类号： G06F12/00 ,  G06F15/16

    CPC分类号： H04B1/0003 ,  G06F21/125 ,  G06F2221/2111 ,  H04B1/406 ,  H04L63/0428 ,  H04L63/10 ,  H04L2463/101

    摘要： Systems and methods are provided for modularly constructing a software defined radio (“SDR”). Given an SDR kernel (i.e., a potentially platform-neutral definition of digital signal processing functionality and control operations necessary to implement the core portion of a software defined radio implementing a particular radio standard), an optional description of governmental regulations for a particular locality, and an interface harness providing the necessary components for interfacing to specific communication channels and devices (including SDR hardware components), an SDR factory component performs a process of constructing an SDR software component for implementing a particular radio standard on a particular host. The SDR software component may additionally construct components which restrict the operation of the resulting SDR software component. The SDR kernel may be protected by one or more digital rights management (“DRM”) policies which may be enforced both at the time the SDR software component is constructed and while it is operating.

    摘要翻译： 提供了用于模块化构建软件定义无线电（“SDR”）的系统和方法。 给定SDR内核（即，实现特定无线电标准的软件定义无线电的核心部分所需的数字信号处理功能和控制操作的潜在平台中立定义），对特定地点的政府法规的可选描述， 以及提供用于与特定通信信道和设备（包括SDR硬件组件）接口的必要组件的接口线束，SDR工厂组件执行构建用于在特定主机上实现特定无线电标准的SDR软件组件的过程。 SDR软件组件可以另外构造限制所得到的SDR软件组件的操作的组件。 SDR内核可能受到一个或多个数字版权管理（“DRM”）策略的保护，这些策略可以在构建SDR软件组件时和在运行时都被执行。

    Providing guest users access to network resources through an enterprise network
    8.
    发明申请
    Providing guest users access to network resources through an enterprise network 有权
    通过企业网络为访客提供对网络资源的访问

    公开(公告)号：US20070256121A1

    公开(公告)日：2007-11-01

    申请号：US11413922

    申请日：2006-04-28

    申请人： Amer Hassan ,  Andrew Baron ,  Christian Huitema ,  Deyun Wu ,  Mahmood Khadeer ,  Vishesh Parikh ,  Wajih Yahyaoui

    发明人： Amer Hassan ,  Andrew Baron ,  Christian Huitema ,  Deyun Wu ,  Mahmood Khadeer ,  Vishesh Parikh ,  Wajih Yahyaoui

    IPC分类号： H04L9/32

    CPC分类号： H04L63/0853 ,  H04L63/104 ,  H04W12/04 ,  H04W12/08

    摘要： Guest user are enabled to access network resources through an enterprise network using a guest user account. A guest user account may be created for a guest for a limited time. Guest account credentials of the guest account may be provided to the guest to use the guest account using any of a variety of techniques described herein, for example, by scanning a guest access card, credit card or mobile telephone of guest user, and providing the guest account credentials to the user based on the information obtained. A guest access management server may be configured to generate and maintain guest accounts, authenticate guest users, and track and log guest activity. A VLAN technology may be used to separate guest traffic from host enterprise traffic on the host enterprise network. After a guest user is authenticated, communications to and from the guest user may be routed to a guest VLAN.

    摘要翻译： 访客用户启用访问用户帐户通过企业网络访问网络资源。 可以在有限的时间内为访客创建访客用户帐户。 访客帐户的访客帐户凭证可以被提供给访客以使用本文描述的各种技术中的任何一种使用客户账户，例如通过扫描访客用户的访客访问卡，信用卡或移动电话，并且提供 基于获取的信息向用户提供客户帐户凭据。 访客访问管理服务器可以被配置为生成和维护访客帐户，验证访客用户以及跟踪和记录访客活动。 可以使用VLAN技术将客户流量与主机企业网络上的主机企业流量进行分离。 在访客用户被认证之后，与来宾用户的通信可以被路由到来宾VLAN。

    Network service for modularly constructing a software defined radio
    9.
    发明申请
    Network service for modularly constructing a software defined radio 有权
    用于模块化构建软件定义无线电的网络服务

    公开(公告)号：US20070077903A1

    公开(公告)日：2007-04-05

    申请号：US11239782

    申请日：2005-09-30

    申请人： Amer Hassan ,  Christian Huitema ,  Vishesh Parikh

    发明人： Amer Hassan ,  Christian Huitema ,  Vishesh Parikh

    IPC分类号： H04B1/18 ,  H04M3/00

    CPC分类号： H04L63/10 ,  G06F8/36 ,  G06Q20/102 ,  G06Q30/04 ,  H04B1/0032 ,  H04H60/04 ,  H04L67/34 ,  H04L2463/101

    摘要： Systems and methods are provided that disclose a network service for modularly constructing a software defined radio (“SDR”). A server system provides an SDR kernel (i.e., a potentially platform-neutral definition of digital signal processing functionality and control operations necessary to implement the core portion of a software defined radio implementing a particular radio standard) to a client system. The client system may select a desired SDR kernel through a variety of means disclosed herein. While some SDR kernels may be provided for free and unrestricted use, others may be purchased or subscribed to and additionally restricted by digital rights management (“DRM”) policies. Based upon the agreed upon payment terms and any other restrictions, a customized set of DRM policies may be applied by the server system to the SDR kernel before sending it to a client system. Additionally, the server system may provide a description of governmental regulations applicable to a given locality.

    摘要翻译： 提供了公开用于模块化构建软件定义无线电（“SDR”）的网络服务的系统和方法。 服务器系统向客户端系统提供SDR内核（即，数字信号处理功能的潜在平台中立定义和实现特定无线电标准的软件定义的无线电的核心部分所必需的控制操作）。 客户端系统可以通过本文公开的各种手段来选择期望的SDR内核。 虽然一些SDR内核可能被提供为免费和不受限制的使用，但是其他可以被数字版权管理（“DRM”）策略购买或订阅并另外受到限制。 根据约定的付款条件和任何其他限制，服务器系统可以将定制的一组DRM策略应用于SDR内核，然后将其发送到客户端系统。 此外，服务器系统可以提供适用于给定地点的政府规章的描述。