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71.发明申请公开(公告)号：US20080130519A1
公开(公告)日：2008-06-05
申请号：US11847034
申请日：2007-08-29
申请人： Paramvir Bahl , Ranveer Chandra , Thomas Moscibroda , Gopala Sri Hari Narlanka , Yunnan Wu , Yuan Yuan
发明人： Paramvir Bahl , Ranveer Chandra , Thomas Moscibroda , Gopala Sri Hari Narlanka , Yunnan Wu , Yuan Yuan
CPC分类号： H04L12/2602 , H04L43/00 , H04L43/0882 , H04L43/16 , H04W16/14
摘要： A new media access control (MAC) protocol for cognitive wireless networks is described. The new MAC protocol allows each of multiple nodes, such as cell phones and computers with wireless, to determine utilization of a communication spectrum, such as the television broadcast band. The nodes collaborate to achieve a combined view of spectrum utilization in their local vicinity, in which scheduled users and empty time segments are mapped across a wide range of frequencies. Nodes negotiate with each other to reserve idle segments of the spectrum for packet exchange on negotiated frequencies. Control packet structure allows nodes to become prescient of the local spectrum utilization during handshaking. A cognitive device operating under the new MAC has a first radio that both scans the spectrum and monitors a control channel; and a second reconfigurable radio with adjustable parameters, including frequency and bandwidth, for packet transmission.
摘要翻译： 描述了用于认知无线网络的新的媒体接入控制（MAC）协议。 新的MAC协议允许诸如蜂窝电话和具有无线的计算机的多个节点中的每一个确定诸如电视广播频带之类的通信频谱的利用。 节点协作实现其本地附近的频谱利用的组合视图，其中调度的用户和空时间段在广泛的频率范围内被映射。 节点相互协商以在协商的频率上保留用于分组交换的频谱的空闲段。 控制分组结构允许节点在握手期间变得预先考虑本地频谱利用。 在新MAC下操作的认知设备具有扫描频谱并监视控制信道的第一无线电; 以及用于分组传输的具有可调参数（包括频率和带宽）的第二可重新配置的无线电。
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公开(公告)号：US09313664B2
公开(公告)日：2016-04-12
申请号：US13188395
申请日：2011-07-21
摘要： The coexistence of a plurality of different wireless networks that concurrently operate in a common geographic region is optimized. A query is received from a wireless node requesting advice on specific portions of a radio frequency spectrum to use. A spectrum recommendation procedure is then run to generate advice on recommended portions of the radio frequency spectrum for the wireless node to use in order to minimize one or more of interference in the spectrum, or noise in the spectrum, or contention in the spectrum. A recommendation reply is then sent to the wireless node which includes information specifying the recommended portions of the radio frequency spectrum for the wireless node to use in order to minimize one or more of interference in the spectrum, or noise in the spectrum, or contention in the spectrum.
摘要翻译： 同时在公共地理区域中操作的多个不同无线网络的共存被优化。 从无线节点接收到询问要使用的无线电频谱的特定部分的建议。 然后运行频谱推荐程序以产生关于无线节点的推荐部分的建议，以使无线节点使用以便最小化频谱中的一个或多个干扰，或频谱中的噪声或频谱中的争用。 然后将推荐答复发送到无线节点，无线节点包括指定无线节点使用的无线电频谱的推荐部分的信息，以便最小化频谱中的一个或多个干扰，或频谱中的噪声，或频谱中的争用 光谱。
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公开(公告)号：US08929933B2
公开(公告)日：2015-01-06
申请号：US13202297
申请日：2011-05-04
申请人： Kun Tan , Jiansong Zhang , Yongguang Zhang , Ranveer Chandra , Yong He , Thomas Moscibroda , Paramvir Bahl , Haichen Shen
发明人： Kun Tan , Jiansong Zhang , Yongguang Zhang , Ranveer Chandra , Yong He , Thomas Moscibroda , Paramvir Bahl , Haichen Shen
CPC分类号： H04W72/0453 , H04L5/0005 , H04L5/0023 , H04L5/0064 , H04L5/0066 , H04L5/0092 , H04L5/14 , H04L27/0006 , H04W16/14 , H04W72/0446 , H04W72/082 , H04W88/08
摘要： Embodiments include processes, systems, and devices that allow a white space base station to request available frequency ranges for white space transmission in a local area. A white space finder service models a primary user device's transmission signal propagation area using terrain data associated with the local area of the primary user device. The white space finder service also determines, based on the location of the white space base station and the modeled propagation area, one or more locally available, non-interfering frequency ranges and provides them to the white space base station. The white space base station compares the provided frequency ranges to policies and selects one or more of the available frequencies that accommodate the policies. The white space base station also maps the transmission frequency ranges to virtual frequency ranges for transmission by a software-defined radio employing spectrum virtualization.
摘要翻译： 实施例包括允许空白基站在局部区域中为空白传输请求可用频率范围的过程，系统和设备。 白色空间查找器服务使用与主用户设备的本地区域相关联的地形数据来建模主用户设备的传输信号传播区域。 白色空间查找器服务还基于白色空间基站的位置和建模的传播区域确定一个或多个本地可用的非干扰频率范围并将其提供给空白基站。 空白基站将提供的频率范围与策略进行比较，并选择适应策略的一个或多个可用频率。 白空间基站还将传输频率范围映射到虚拟频率范围，以便通过使用频谱虚拟化的软件定义无线电进行传输。
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公开(公告)号：US08547862B2
公开(公告)日：2013-10-01
申请号：US12822209
申请日：2010-06-24
IPC分类号： G01R31/18
摘要： Described is incorporating white space networking components into a network stack. A user mode spectrum access control component determines which white space channels are currently allowed for use based upon policy, current operating status and availability information obtained from one or more sources. A white space service (e.g., in the WLAN service) receives the availability information. The white space service includes a discovery module that discovers other nodes, and a channel migration module that changes from the current channel to another channel if the current channel is no longer allowed for use. A kernel mode (NDIS layer) white space driver through a miniport driver controls the channel in use as the current channel. An automatic configuration module is provided that switches to Wi-Fi network communication when a Wi-Fi network is present, and switches back when a Wi-Fi network is not present.
摘要翻译： 描述将白色空间网络组件合并到网络堆栈中。 用户模式频谱访问控制组件基于从一个或多个源获得的策略，当前操作状态和可用性信息来确定当前允许使用哪个空白信道。 空白服务（例如，在WLAN服务中）接收可用性信息。 白空间服务包括发现其他节点的发现模块，以及当前通道不再允许使用时，从当前通道更改为另一个通道的通道迁移模块。 通过微型端口驱动程序的内核模式（NDIS层）空白驱动程序控制正在使用的通道作为当前通道。 提供自动配置模块，当Wi-Fi网络存在时切换到Wi-Fi网络通信，并且当Wi-Fi网络不存在时切换回。
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公开(公告)号：US08510577B2
公开(公告)日：2013-08-13
申请号：US12181193
申请日：2008-07-28
CPC分类号： G06F1/3209
摘要： Methods of reducing power consumption in a computing device are described in which file sharing applications which are running in the background are offloaded onto a lower power subsystem and the rest of the computing device can be put into a low power state. The lower power subsystem runs application stubs which autonomously execute a subset of the operations performed by a file sharing application which was previously running on the computing device. Before the rest of the computing device goes into the low power state, application state information is passed to the lower power subsystem for use by the application stubs. In an example, the application stub may continue to download files whilst the rest of the computing device is in standby or is shutdown and the application state information may include details of the files that are to be downloaded.
摘要翻译： 描述了在计算设备中降低功耗的方法，其中在后台运行的文件共享应用被卸载到较低功率子系统上，并且计算设备的其余部分可以被置于低功率状态。 较低权力子系统运行应用程序存根，自动执行由先前在计算设备上运行的文件共享应用程序执行的操作的子集。 在计算设备的其余部分进入低功率状态之前，应用状态信息被传递到较低功率子系统以供应用存根使用。 在一个示例中，应用程序存根可以继续下载文件，而计算设备的其余部分处于待机状态或被关闭，并且应用程序状态信息可以包括将被下载的文件的细节。
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公开(公告)号：US08488633B2
公开(公告)日：2013-07-16
申请号：US12906837
申请日：2010-10-18
申请人： Paramvir Bahl , Thomas Moscibroda , Gopala Sri Hari Narlanka , Yunnan Wu , Yuan Yuan , Ranveer Chandra
发明人： Paramvir Bahl , Thomas Moscibroda , Gopala Sri Hari Narlanka , Yunnan Wu , Yuan Yuan , Ranveer Chandra
IPC分类号： H04J4/00
CPC分类号： H04W72/0446 , H04L5/0023 , H04L5/0032 , H04L5/0039 , H04L5/0066 , H04L5/0094 , H04W16/14
摘要： Dynamic time-spectrum block allocation for cognitive radio networks is described. In one implementation, without need for a central controller, peer wireless nodes collaboratively sense local utilization of a communication spectrum and collaboratively share white spaces for communication links between the nodes. Sharing local views of the spectrum utilization with each other allows the nodes to dynamically allocate non-overlapping time-frequency blocks to the communication links between the nodes for efficiently utilizing the white spaces. The blocks are sized to optimally pack the available white spaces. The nodes regularly readjust the bandwidth and other parameters of all reserved blocks in response to demand, so that packing of the blocks in available white spaces maintains a fair distribution of the overall bandwidth of the white spaces among active communication links, minimizes finishing time of all communications, reduces contention overhead among the nodes contending for the white spaces, and maintains non-overlapping blocks.
摘要翻译： 描述了认知无线电网络的动态时频块分配。 在一个实现中，不需要中央控制器，对等无线节点协同地感知通信频谱的本地利用，并且协作地共享用于节点之间的通信链路的空白空间。 共享频谱利用率的局部视图允许节点动态地将不重叠的时间频率块分配给节点之间的通信链路，以有效地利用白色空间。 这些块的大小可以最佳地打包可用的空白空间。 节点响应于需求定期重新调整所有保留块的带宽和其他参数，使得可用空白块中的块的打包保持主动通信链路之间白色空间的总带宽的公平分配，最小化所有的完成时间 通信，减少竞争白空间的节点之间的争用开销，并维护不重叠的块。
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77.发明授权Channel discovery and disconnection in networks over white spaces and other portions of the spectrum 有权在白色空间和频谱的其他部分的网络中的信道发现和断开公开(公告)号：US08179797B2
公开(公告)日：2012-05-15
申请号：US12473951
申请日：2009-05-28
IPC分类号： H04L12/26
CPC分类号： H04W16/14 , H04L27/0006 , H04W72/0453
摘要： Functionality is described for discovering a channel within an environment in which non-privileged entities have subordinate access rights to spectrum compared to privileged entities. The functionality operates by investigating spectrum units within the spectrum for the presence of the channel. In one case, the functionality operates by investigating the spectrum units in linear succession; in another case, the functionality advances in a staggered fashion over the available spectrum. Functionality is also described for handling disconnection by a node from a channel. The functionality allows the node to convey its disconnection status to other communication participants. In one case, various aspects of the functionality are implemented by performing analysis in the time domain.
摘要翻译： 描述了用于发现非特权实体具有与特权实体相比具有次要访问权限的环境中的信道的功能。 该功能通过调查频谱内的频谱单元来进行信道的存在。 在一种情况下，通过以线性相继调查频谱单位来操作该功能; 在另一种情况下，功能在可用频谱上以交错方式前进。 还描述了用于处理节点与信道的断开连接的功能。 该功能允许节点将其断开状态传达给其他通信参与者。 在一种情况下，通过在时域中执行分析来实现功能的各个方面。
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公开(公告)号：US20110032892A1
公开(公告)日：2011-02-10
申请号：US12906837
申请日：2010-10-18
申请人： Paramvir Bahl , Ranveer Chandra , Thomas Moscibroda , Gopala Sri Hari Narlanka , Yunnan Wu , Yuan Yuan
发明人： Paramvir Bahl , Ranveer Chandra , Thomas Moscibroda , Gopala Sri Hari Narlanka , Yunnan Wu , Yuan Yuan
IPC分类号： H04W72/04
CPC分类号： H04W72/0446 , H04L5/0023 , H04L5/0032 , H04L5/0039 , H04L5/0066 , H04L5/0094 , H04W16/14
摘要： Dynamic time-spectrum block allocation for cognitive radio networks is described. In one implementation, without need for a central controller, peer wireless nodes collaboratively sense local utilization of a communication spectrum and collaboratively share white spaces for communication links between the nodes. Sharing local views of the spectrum utilization with each other allows the nodes to dynamically allocate non-overlapping time-frequency blocks to the communication links between the nodes for efficiently utilizing the white spaces. The blocks are sized to optimally pack the available white spaces. The nodes regularly readjust the bandwidth and other parameters of all reserved blocks in response to demand, so that packing of the blocks in available white spaces maintains a fair distribution of the overall bandwidth of the white spaces among active communication links, minimizes finishing time of all communications, reduces contention overhead among the nodes contending for the white spaces, and maintains non-overlapping blocks.
摘要翻译： 描述了认知无线电网络的动态时频块分配。 在一个实现中，不需要中央控制器，对等无线节点协同地感知通信频谱的本地利用，并且协作地共享用于节点之间的通信链路的空白空间。 共享频谱利用率的局部视图允许节点动态地将不重叠的时间频率块分配给节点之间的通信链路，以有效地利用白色空间。 这些块的大小可以最佳地打包可用的空白空间。 节点响应于需求定期重新调整所有保留块的带宽和其他参数，使得可用空白块中的块的打包保持主动通信链路之间白色空间的总带宽的公平分配，最小化所有的完成时间 通信，减少竞争白空间的节点之间的争用开销，并维护不重叠的块。
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79.发明授权Using a connected wireless computer as a conduit for a disconnected wireless computer 有权使用连接的无线计算机作为断开连接的无线计算机的导管公开(公告)号：US07760654B2
公开(公告)日：2010-07-20
申请号：US11047190
申请日：2005-01-31
申请人： Atul Adya , Paramvir Bahl , Ranveer Chandra
发明人： Atul Adya , Paramvir Bahl , Ranveer Chandra
IPC分类号： H04L12/26 , H04W4/00 , H04W24/00 , G06F15/173
摘要： Systems and methods are described for using client conduits to enable bootstrapping and fault diagnosis of disconnected wireless clients. Client conduits are used to enable disconnected clients to diagnose their problems with the help of nearby clients. This technique may take advantage of the beaconing and probing mechanisms of IEEE 802.11 to ensure that connected clients do not pay unnecessary overheads for detecting disconnected clients. Methods are also described for detecting rogue devices disguising as disconnected clients.
摘要翻译： 描述了使用客户端管道来实现断开连接的无线客户端的自举和故障诊断的系统和方法。 客户端管道用于使不连接的客户端能够在附近客户的帮助下诊断他们的问题。 这种技术可以利用IEEE 802.11的信标和探测机制来确保连接的客户端不会为检测断开的客户端支付不必要的开销。 还描述了用于检测伪装成断开的客户端的流氓设备的方法。
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公开(公告)号：US20100023788A1
公开(公告)日：2010-01-28
申请号：US12181193
申请日：2008-07-28
IPC分类号： G06F1/32
CPC分类号： G06F1/3209
摘要： Methods of reducing power consumption in a computing device are described in which file sharing applications which are running in the background are offloaded onto a lower power subsystem and the rest of the computing device can be put into a low power state. The lower power subsystem runs application stubs which autonomously execute a subset of the operations performed by a file sharing application which was previously running on the computing device. Before the rest of the computing device goes into the low power state, application state information is passed to the lower power subsystem for use by the application stubs. In an example, the application stub may continue to download files whilst the rest of the computing device is in standby or is shutdown and the application state information may include details of the files that are to be downloaded.
摘要翻译： 描述了在计算设备中降低功耗的方法，其中在后台运行的文件共享应用被卸载到较低功率子系统上，并且计算设备的其余部分可以被置于低功率状态。 较低权力子系统运行应用程序存根，自动执行由先前在计算设备上运行的文件共享应用程序执行的操作的子集。 在计算设备的其余部分进入低功率状态之前，应用状态信息被传递到较低功率子系统以供应用存根使用。 在一个示例中，应用程序存根可以继续下载文件，而计算设备的其余部分处于待机状态或被关闭，并且应用程序状态信息可以包括将被下载的文件的细节。
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