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1.发明申请Use of separate control channel to mitigate interference problems in wireless networking 有权使用单独的控制通道来减轻无线网络中的干扰问题公开(公告)号：US20060121854A1
公开(公告)日：2006-06-08
申请号：US11004600
申请日：2004-12-03
申请人： Abhishek Abhishek , Craig Mundie , Poovanpilli Madhavan , Victoria Poncini , William Westerinen , Paramvir Bahl
发明人： Abhishek Abhishek , Craig Mundie , Poovanpilli Madhavan , Victoria Poncini , William Westerinen , Paramvir Bahl
摘要： Described is a system and method for transporting interference-related control data and other information between nodes in a wireless network, using a control channel that is distinct from a content channel used to transport content. The control channel may be a different channel in the same unlicensed band as the content channel, a channel in a different unlicensed band, or a channel in a licensed band, and thereby not subject to the same interference-related problems that the unlicensed content channel may experience. As a result, management information for adjusting the content channel's communication parameters may still be communicated between the nodes, whereby mitigation actions may occur. For example, the content channel may be changed to another frequency, compression may be implemented or varied, and/or the data transfer rate may be varied. The control data can also be used to change the control channel's communication parameters.
摘要翻译： 描述了使用与用于传输内容的内容信道不同的控制信道来在无线网络中的节点之间传送干扰相关控制数据和其他信息的系统和方法。 控制信道可以是与内容信道相同的未许可频带中的不同信道，在不同的未许可频带中的信道，或许可频带中的信道，从而不受到与非许可内容信道相同的干扰相关问题的影响 可能会经历 结果，用于调整内容信道的通信参数的管理信息可能仍然在节点之间通信，从而可能发生缓解动作。 例如，内容频道可以改变为另一个频率，压缩可以被实现或改变，和/或可以改变数据传输速率。 控制数据也可用于改变控制通道的通讯参数。
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2.发明申请公开(公告)号：US20070105501A1
公开(公告)日：2007-05-10
申请号：US11267458
申请日：2005-11-04
申请人： Hui Shen , Jiandong Ruan , Francis Duong , Victoria Poncini , Poovanpilli Madhavan , Abhishek Abhishek
发明人： Hui Shen , Jiandong Ruan , Francis Duong , Victoria Poncini , Poovanpilli Madhavan , Abhishek Abhishek
CPC分类号： H04W52/243 , H04B17/24 , H04L1/0002 , H04L1/0007 , H04L1/0015 , H04L1/0026 , H04L1/08
摘要： Described is a determination of whether interference in a wireless network has achieved a threshold level that adversely impacts communication bandwidth. If so, action is taken to mitigate the effects of the interference and thereby improve the bandwidth. The action that is taken may be in the form of at least one mitigation solution, including mitigating by packet fragmentation, mitigating by changing the wireless network's current operating frequency, mitigating by changing a power level, mitigating by transmit dodging, and/or mitigating by pre-selecting at least one transmission criterion based on an observed pattern. A framework is provided to coordinate mitigation of interference-related problems, and includes an interferer decision mechanism that receives RF interference related-data and evaluates the interference data against a threshold. Mitigation is employed when the threshold is achieved on the current operating frequency.
摘要翻译： 描述了确定无线网络中的干扰是否已经达到对通信带宽有不利影响的阈值水平。 如果是这样，采取行动来减轻干扰的影响，从而提高带宽。 所采取的行动可以是至少一种缓解解决方案的形式，包括通过分组分段减轻，通过改变无线网络的当前操作频率来减轻，通过改变功率级别来减轻，通过发送避免减轻和/或通过 基于观察到的模式预先选择至少一个传输标准。 提供了一个协调缓解干扰相关问题的框架，并包括一个干扰源决定机制，接收RF干扰相关数据，并根据阈值评估干扰数据。 当在当前工作频率上达到阈值时采用缓解措施。
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公开(公告)号：US20060121853A1
公开(公告)日：2006-06-08
申请号：US11004288
申请日：2004-12-03
CPC分类号： H04L1/0001 , H04L1/0002 , H04L1/0007
摘要： Described is an architecture comprising a flexible and extensible framework embodied in a robust coexistence service that couples sensed RF spectrum (interference) data to modules that process the data into dynamic feedback information used to mitigate network communication problems caused by the interference. Via a driver, spectrum sensor hardware is connected to the framework running on a computing device, where the condition and quality of various wireless networking channels are assessed by external modules plugged into the framework. Modules comprise include a classifier component that examines the sensed-data and classifies it, and an application program that processes the classified data, possibly for mitigation. Mitigation-related information is fed to a feedback mechanism to adjust network parameters to avoid the sensed interference. The robust coexistence service also distributes control data corresponding to the mitigation information to other remote computing devices in the wireless network for use in mitigating their interference problems.
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4.发明申请Protocol for exchanging control data to mitigate interference problems in wireless networking 有权用于交换控制数据以减轻无线网络中的干扰问题的协议公开(公告)号：US20060120302A1
公开(公告)日：2006-06-08
申请号：US11004428
申请日：2004-12-03
IPC分类号： H04L12/28
CPC分类号： H04W24/00
摘要： Described is a protocol by which wireless network communication devices comprising peer nodes (such as a computer system and an access point) cooperatively exchange information about RF interference detected in the network. The protocol administers the exchange of formatted control data corresponding to the detected interference among computing nodes running a service capable of processing the control data. A peer table is used to maintain locally-obtained and remotely-obtained control data. Records in the peer table are arranged with different levels of granularity with respect to interference and networking information. The interference information collected through the cooperative protocol may then be used by peer devices in the network to adapt to mitigate interference-related problems. The protocol also provides for discovery of peer node capabilities, including a negotiable transport for the control data that may be different from the main data channel transport.
摘要翻译： 描述了包括对等节点（诸如计算机系统和接入点）的无线网络通信设备协同地交换关于在网络中检测到的RF干扰的信息的协议。 该协议管理与运行能够处理控制数据的服务的计算节点之间检测到的干扰相对应的格式化控制数据的交换。 对等表用于维护本地获取的远程获取的控制数据。 对等表中的记录在干扰和网络信息方面具有不同的粒度级别。 然后可以通过协作协议收集的干扰信息被网络中的对等设备使用以适应减轻与干扰有关的问题。 该协议还提供对等节点能力的发现，包括可能与主数据信道传输不同的控制数据的可协商传输。
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公开(公告)号：US20070025388A1
公开(公告)日：2007-02-01
申请号：US11193875
申请日：2005-07-29
IPC分类号： H04L12/413
CPC分类号： H04L1/188
摘要： A mechanism is provided to extend the range of wireless devices beyond the range limit that results from timing restrictions imposed by the IEEE 802.11 standard. The mechanism, which operates at the upper level of the 802.11 MAC, determines whether the wireless devices are far apart or not far apart. When the wireless devices are determined to be far apart, the standard retransmission protocol at the lower level of the 802.11 MAC is disabled and a custom ACK packet is utilized. Delivery of a transmitted packet is confirmed if the custom ACK packet is received within a maximum delay period that takes into account the longer propagation delay between wireless devices that are far apart.
摘要翻译： 提供了一种机制来扩展无线设备的范围超出由IEEE 802.11标准施加的定时限制所产生的范围限制。 在802.11 MAC的较高级别运行的机制确定无线设备是否相距甚远。 当确定无线设备相距较远时，802.11 MAC的较低级别的标准重传协议被禁用，并且使用自定义ACK分组。 如果在最大延迟周期内接收到自定义ACK分组，则考虑到远距离的无线设备之间的较长传播延迟，确认发送的分组的传送。
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公开(公告)号：US20070081508A1
公开(公告)日：2007-04-12
申请号：US11635864
申请日：2006-12-08
申请人： Poovanpilli Madhavan , David Roberts , Mohammad Alam , Zhong Deng , Sharad Mittal , Ankur Agiwal
发明人： Poovanpilli Madhavan , David Roberts , Mohammad Alam , Zhong Deng , Sharad Mittal , Ankur Agiwal
IPC分类号： H04Q7/24
CPC分类号： H04W52/28 , H04L63/0492 , H04L63/061 , H04L67/14 , H04W8/005 , H04W12/04 , H04W52/281 , H04W52/283 , H04W52/367 , Y04S40/24
摘要： A process for secure, safe, and easy provisioning of a wireless device with credentials to connect to a wireless network. A connecting wireless device and an established wireless device both utilize low power transmission at close proximity to exchange wireless connection setting information and/or a password. The connecting wireless device is moved into proximity with the established wireless device and a low power setting is discovered at which the wireless devices may communicate with a sufficiently low error rate. The proximity of the connecting wireless device to the established wireless device is verified and the connecting wireless device is then passed the secret information by the established network device.
摘要翻译： 用于安全，安全和容易地配置具有用于连接到无线网络的凭证的无线设备的过程。 连接无线设备和已建立的无线设备都利用近距离的低功率传输来交换无线连接设置信息和/或密码。 连接的无线设备移动到所建立的无线设备附近，并且发现低功率设置，无线设备可以以足够低的错误率进行通信。 验证连接无线设备与建立的无线设备的接近度，然后通过建立的网络设备将连接的无线设备传递给秘密信息。
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