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    • 83. 发明授权
    • Method and apparatus for maintaining a fingerprint for a wireless network
    • 用于维护无线网络的指纹的方法和装置
    • US08483704B2
    • 2013-07-09
    • US11355538
    • 2006-02-15
    • Sanjiv NandaAleksandar GogicManoj M. DeshpandeNikhil Jain
    • Sanjiv NandaAleksandar GogicManoj M. DeshpandeNikhil Jain
    • H04W24/00
    • H04W48/16H04W64/003
    • The disclosure is directed to a mobile communication device that measures characteristics or attributes of a first communications network that vary according to physical location within that first communications network to create a fingerprint, or signature, of a location within the first communications network. When the fingerprint of the current location of the mobile device is created it can be compared to a known fingerprint associated with a second communication network to determine the mobile device's proximity to the second communications network. Furthermore, the second and subsequent fingerprint that are generated for a particular communications network can be used to modify the stored fingerprint so as to refine it to improve detecting the proximity to the communications network.
    • 本公开涉及一种移动通信设备,其测量根据第一通信网络内的物理位置而变化的第一通信网络的特性或属性,以创建第一通信网络内的位置的指纹或签名。 当创建移动设备的当前位置的指纹时,可将其与与第二通信网络相关联的已知指纹进行比较,以确定移动设备与第二通信网络的接近度。 此外,为特定通信网络生成的第二和随后的指纹可以用于修改存储的指纹,以便细化它,以改进检测到通信网络的接近度。
    • 85. 发明授权
    • Conditional scheduling for asynchronous wireless communication
    • 用于异步无线通信的条件调度
    • US08310996B2
    • 2012-11-13
    • US11833927
    • 2007-08-03
    • Sanjiv NandaAshwin Sampath
    • Sanjiv NandaAshwin Sampath
    • H04W4/00H04J3/00
    • H04W72/0426
    • A wireless media access control supports asynchronous communication and overlapping transmissions. Here, a wireless node may determine whether to request or schedule a transmission based on control messages it receives from neighboring nodes. In some implementations a scheduled transmission may be divided up into several segments so that a transmitting node may receive and transmit control messages between segments. In some implementations a monitoring period is defined after a scheduled transmission period to enable the transmitting node to acquire control information that may otherwise have been transmitted during the scheduled transmission period. In some implementations data and control information are transmitted over different frequency division multiplexed channels to enable concurrent transmission of the data and control information.
    • 无线媒体访问控制支持异步通信和重叠传输。 这里,无线节点可以基于从相邻节点接收到的控制消息来确定是否请求或调度传输。 在一些实施方式中,调度的传输可以被划分成若干段,使得发射节点可以在段之间接收和发送控制消息。 在一些实施方式中,在调度的传输周期之后定义监视周期,以使得发送节点获取否则可能在调度的传输周期期间已经发送的控制信息。 在一些实施方式中,数据和控制信息通过不同的频分多路复用通道传输,以实现数据和控制信息的并发传输。
    • 86. 发明授权
    • Transmissions to multiple stations in wireless communication systems
    • 传输到无线通信系统中的多个站
    • US08305948B2
    • 2012-11-06
    • US11939379
    • 2007-11-13
    • Shravan K. SurineniSanjiv Nanda
    • Shravan K. SurineniSanjiv Nanda
    • H04H20/71
    • H04W74/0816
    • Systems and methodologies are described that facilitate coordinating and conducting transmissions to multiple stations in a wireless communication system during a single transmission opportunity. A holder of a transmission opportunity can communicate a request-to-send message or a self-addressed clear-to-send message to one or more stations to establish the transmission opportunity. Subsequently, data transmissions with respective stations can be initiated by transmitting request-to-send messages to the respective stations. At each receiving station, the source address of a received request-to-send message is compared to the address of the holder of the transmission opportunity. If the addresses match for a given request-to-send message, the receiving station transmits a clear-to-send message to the holder of the transmission opportunity in response to the request-to-send message.
    • 描述了在单个传输机会期间促进协调和执行无线通信系统中的多个站的传输的系统和方法。 发送机会的持有者可以将请求发送消息或自寻址清除发送消息传送到一个或多个站以建立传输机会。 随后,可以通过向相应站发送请求发送消息来启动与各个站的数据传输。 在每个接收站处,将接收的请求发送消息的源地址与发送机会的持有者的地址进行比较。 如果地址匹配给定的请求发送消息,则接收站响应于请求发送消息向发送机会的持有者发送清除发送消息。