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58 条记录 (耗时 0.031 秒)

    Mechanism to convey discovery information in a wireless network
    1.
    发明申请
    Mechanism to convey discovery information in a wireless network 有权
    在无线网络中传送发现信息的机制

    公开(公告)号：US20070141988A1

    公开(公告)日：2007-06-21

    申请号：US11434394

    申请日：2006-05-15

    申请人： Thomas Kuehnel ,  Amer Hassan ,  Christian Huitema ,  David Jones ,  Savas Guven ,  Shannon Chan ,  Srinivas Gatta

    发明人： Thomas Kuehnel ,  Amer Hassan ,  Christian Huitema ,  David Jones ,  Savas Guven ,  Shannon Chan ,  Srinivas Gatta

    IPC分类号： H04B7/00 ,  G06F3/12

    CPC分类号： H04W8/005 ,  H04W48/14 ,  H04W48/16 ,  H04W48/18 ,  H04W76/10

    摘要： Discovery of services between devices is provided prior to establishing a connection between devices, including wireless-enabled devices or devices that are communicatively coupled to wireless access points or other wireless communication devices. Discovering services prior to establishing a connection may facilitate finding a desired service. The services that may be discovered may be, for example, print services, camera services, PDA services or any other suitable services. Services may be discovered using 802.11, Bluetooth, UWB or any other suitable wireless technology. An information element is used to wirelessly convey information related to a service and/or information related to service discovery.

    摘要翻译： 在建立设备之间的连接之前提供设备之间的服务发现，包括无线功能设备或通信地耦合到无线接入点或其他无线通信设备的设备。 在建立连接之前发现服务可能有助于找到所需的服务。 可能发现的服务可以是例如打印服务，照相机服务，PDA服务或任何其它合适的服务。 可以使用802.11，蓝牙，UWB或任何其他合适的无线技术来发现服务。 信息元素用于无线地传送与服务有关的信息和/或与服务发现有关的信息。

    Adapting a communication network to varying conditions
    4.
    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
    8.
    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
    9.
    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。

    FEC in cognitive multi-user OFDMA
    10.
    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。