In-Frame Acknowledgments and Retransmissions
    51.
    发明申请
    In-Frame Acknowledgments and Retransmissions 有权
    框架内鸣谢和重传

    公开(公告)号:US20140044038A1

    公开(公告)日:2014-02-13

    申请号:US13572912

    申请日:2012-08-13

    IPC分类号: H04W4/00

    摘要: Implementations for retransmitting erroneous portions within a transmission frame are described. A sender transmits a transmission frame and the receiver performs error detection on portions of the transmission frame in order to determine if any are received in error. The receiver sets up a feedback channel and transmits acknowledgements to the receiver to indicate that one or more portions have been received and to identify any portions that are received with errors. At least some of the acknowledgements are transmitted prior to receipt of the entire transmission frame. The sender retransmits any portions that are identified as being erroneous within the transmission frame.

    摘要翻译: 描述用于在传输帧内重传错误部分的实现。 发送方发送传输帧,并且接收机对传输帧的部分执行错误检测,以便确定是否有错误。 接收机建立反馈信道并且向接收机发送确认以指示已经接收到一个或多个部分并且识别任何被错误接收的部分。 在接收到整个传输帧之前至少发送一些确认。 发送方重传发送帧内被识别为错误的任何部分。

    Transfer of data-intensive content between portable devices
    52.
    发明授权
    Transfer of data-intensive content between portable devices 有权
    在便携式设备之间传输数据密集型内容

    公开(公告)号:US08509753B2

    公开(公告)日:2013-08-13

    申请号:US13071538

    申请日:2011-03-25

    IPC分类号: H04L29/06

    摘要: Described herein are technologies that facilitate transfer of data-intensive content between portable telephones. Phones are configured to transmit data indicative of phone location to a proxy server by way of respective cellular network data connections. When a user of a phone wishes to acquire content that is labeled as shareable on another phone, the user of the phone initiates a location-based request, which causes the proxy server to provide a list of phones that are estimated to be in Wi-Fi range of such phone. The user thereafter selects a particular phone, and the proxy server instructs that phone to activate its Wi-Fi radio. The phone of the user additionally activates its Wi-Fi radio, and a peer-to-peer connection between phones is established. Thereafter, rich content is transferrable between the phones.

    摘要翻译: 这里描述的是便于在便携式电话之间传输数据密集型内容的技术。 电话被配置为通过相应的蜂窝网络数据连接将指示电话位置的数据发送到代理服务器。 当电话用户希望获取标记为在另一电话上可共享的内容时,电话用户启动基于位置的请求,这导致代理服务器提供估计为在Wi- Fi范围这样的手机。 用户此后选择特定的电话,代理服务器指示该电话激活其Wi-Fi无线电。 用户的电话另外激活其Wi-Fi无线电,并建立电话之间的对等连接。 此后,丰富的内容可以在手机之间传输。

    Estimating Application Energy Usage in a Target Device
    53.
    发明申请
    Estimating Application Energy Usage in a Target Device 有权
    估计目标设备中的应用能耗

    公开(公告)号:US20130174128A1

    公开(公告)日:2013-07-04

    申请号:US13339358

    申请日:2011-12-28

    IPC分类号: G06F9/44

    摘要: Embodiments provide implementations for estimating a test application's energy usage on a target device based on execution of the test application. Resource usage associated with the execution of the test application is measured. The measured resource usage is input into a power model of the target device to estimate the energy that the test application uses when executed on the target device. An emulation system is configured to execute the test application in a virtual execution environment using resource scaling and simulated target device application programming interfaces to substantially simulate the corresponding capabilities of the target device.

    摘要翻译: 实施例提供了基于测试应用的执行来估计测试应用在目标设备上的能量使用的实现。 测量与执行测试应用程序相关联的资源使用情况。 测量的资源使用量被输入到目标设备的功率模型中,以估计在目标设备上执行时测试应用使用的能量。 仿真系统被配置为使用资源缩放和模拟的目标设备应用编程接口在虚拟执行环境中执行测试应用,以基本上模拟目标设备的对应能力。

    Enabling white space networks independent of low-threshold sensing
    55.
    发明授权
    Enabling white space networks independent of low-threshold sensing 有权
    实现独立于低阈值感测的空白网络

    公开(公告)号:US08473989B2

    公开(公告)日:2013-06-25

    申请号:US12822218

    申请日:2010-06-24

    IPC分类号: H04N7/20

    摘要: Described is a technology by which a remote or local geo-location service provides white space information that one or more client devices and/or base stations may use to determine which white spaces are available for use, e.g., for wireless networking. Because of the information, low-threshold sensing is not needed by the client devices and/or base stations to know which white spaces are available. The service computes the available white spaces for a given location based upon television transmitter parameters, elevation data, and information received regarding any operational wireless microphones.

    摘要翻译: 描述了一种技术,通过该技术远程或本地地理位置服务提供一个或多个客户端设备和/或基站可以用于确定哪些空格可用于例如无线网络的白空间信息。 由于该信息,客户端设备和/或基站不需要低阈值感测来知道哪些空白可用。 该服务基于电视发射机参数,高程数据和关于任何操作无线麦克风接收到的信息来计算给定位置的可用空白空间。

    Efficient and reliable multicast over a Wi-Fi network
    59.
    发明授权
    Efficient and reliable multicast over a Wi-Fi network 有权
    通过Wi-Fi网络高效可靠的多播

    公开(公告)号:US08411608B2

    公开(公告)日:2013-04-02

    申请号:US12714360

    申请日:2010-02-26

    IPC分类号: H04H20/71

    摘要: A “Wi-Fi Multicaster” provides a practical and efficient Wi-Fi multicast system for environments having potentially large numbers of Wi-Fi clients. Significantly, the Wi-Fi Multicaster does not require any changes to the 802.11 protocol, or to the underlying Wi-Fi infrastructure. In various embodiments, the Wi-Fi Multicaster uses pseudo-broadcast, and augments it with destination control, association control and optional proactive FEC (forward error correction) to improve multicast performance. More specifically, the Wi-Fi Multicaster system converts multicast packets to targeted unicast transmissions. To minimize the amount of airtime consumed, the Wi-Fi Multicaster uses destination control in combination with various algorithms for association control. Further, in various embodiments, the Wi-Fi Multicaster includes an adaptive, proactive FEC scheme to reduce overall packet losses. Finally, to overcome the challenges posed by encryption protocols such as 802.1x, the Wi-Fi Multicaster uses a “virtual multicast interface” that allows clients to “share” a common key for each multicast.

    摘要翻译: Wi-Fi Multicaster为具有潜在大量Wi-Fi客户端的环境提供了实用且高效的Wi-Fi组播系统。 重要的是,Wi-Fi Multicaster不需要对802.11协议或底层Wi-Fi基础设施进行任何更改。 在各种实施例中,Wi-Fi Multicaster使用伪广播,并且将其与目的地控制,关联控制和可选的主动FEC(前向纠错)相加以提高多播性能。 更具体地说,Wi-Fi Multicaster系统将多播分组转换为目标单播传输。 为了最大限度地减少消耗的通话时间,Wi-Fi Multicaster将目的地控制与各种算法结合使用,进行关联控制。 此外,在各种实施例中,Wi-Fi多播卡器包括自适应主动FEC方案以减少总体分组丢失。 最后,为了克服802.1x等加密协议带来的挑战,Wi-Fi Multicaster使用虚拟组播接口,允许客户端共享每个组播的公共密钥。

    SHORT-RANGE NODES WITH ADAPTIVE PREAMBLES FOR COEXISTENCE
    60.
    发明申请
    SHORT-RANGE NODES WITH ADAPTIVE PREAMBLES FOR COEXISTENCE 有权
    具有自适应前缀的短距离编号

    公开(公告)号:US20120294232A1

    公开(公告)日:2012-11-22

    申请号:US13111965

    申请日:2011-05-20

    IPC分类号: H04W4/00

    摘要: Wireless protocols in the unlicensed spectrum are developed for different requirements in terms of transmit range and power, which makes it difficult for multiple nodes having disparate transmit ranges to coexist in the same unlicensed spectrum. A short-range wireless node uses adaptive preambles to signal presence to long-range wireless nodes outside of its transmit range. In addition, a long-range wireless node detects an adapter preamble and backs-off transmissions for reservation period dedicated to short-range nodes.

    摘要翻译: 针对发射范围和功率方面的不同要求开发了无许可频谱中的无线协议,这使得具有不同发射范围的多个节点难以在相同的未许可频谱中共存。 短距离无线节点使用自适应前导码来将信号发送到其发射范围之外的远程无线节点。 此外,远程无线节点检测用于短距离节点专用的预留时段的适配器前导码和后退传输。