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    Method and system for providing a single unified channel quieting/measurement request element in an 802.11 wireless local area network
    1.
    发明授权
    Method and system for providing a single unified channel quieting/measurement request element in an 802.11 wireless local area network 有权
    用于在802.11无线局域网中提供单个统一信道静止/测量请求单元的方法和系统

    公开(公告)号：US07620405B2

    公开(公告)日：2009-11-17

    申请号：US10505691

    申请日：2003-03-07

    申请人： Amjad Soomro ,  Sunghyun Choi

    发明人： Amjad Soomro ,  Sunghyun Choi

    IPC分类号： H04B7/212

    CPC分类号： H04W24/00 ,  H04W24/06 ,  H04W84/12

    摘要： A channel quieting/measurement request element is provided for use in a wireless local area network. The unified element of the invention integrates a dual capability for performing channel quieting and for making measurement requests of one or more stations in the network. According to another aspect of the invention, a conventional channel quieting element is modified to include provisions for defining an offset time and an offset duration interval for performing channel quieting.

    摘要翻译： 提供了一种用于无线局域网的信道静止/测量请求单元。 本发明的统一要素集成了用于执行信道静止和用于对网络中的一个或多个站进行测量请求的双重能力。 根据本发明的另一方面，修改传统的信道静音元件以包括用于定义偏移时间和用于执行信道静止的偏移持续时间间隔的设置。

    Measuring medium activity patterns in wireless networks and deriving information from the activity patterns
    2.
    发明授权
    Measuring medium activity patterns in wireless networks and deriving information from the activity patterns 有权
    测量无线网络中的媒体活动模式，并从活动模式中导出信息

    公开(公告)号：US07453857B2

    公开(公告)日：2008-11-18

    申请号：US10556011

    申请日：2004-05-03

    申请人： Stefan Mangold ,  Zhun Zhong ,  Amjad Soomro

    发明人： Stefan Mangold ,  Zhun Zhong ,  Amjad Soomro

    IPC分类号： H04Q7/24 ,  H04L12/43

    CPC分类号： H04W16/14 ,  H04B17/318 ,  H04W8/005 ,  H04W8/22 ,  H04W24/00 ,  H04W24/10 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/23

    摘要： An apparatus and method is provided for measuring medium activity patterns in wireless networks and deriving information about the radio environment from the measured medium activity/patterns. This invention is three-fold. First, it defines what to measure, including medium idle/busy patterns based on power detection, medium idle/busy pattern based on preamble detection, and medium idle/busy pattern based on virtual sensing. Second, it provides a mechanism for communicating the measurement request and report, as illustration for the case of IEE 802.11. And last, it defines the information that can be derived given these measurements as discovery of: non-802 devices, 802.11e systems, 802.11e contention-based medium access priorities, 802.11e controlled medium access usage, 802.11b/g existence, and hidden stations.

    摘要翻译： 提供了一种用于测量无线网络中的媒体活动模式并从测量的媒体活动/模式导出关于无线电环境的信息的装置和方法。 本发明是三重的。 首先，它定义了要测量的内容，包括基于功率检测的中等闲/忙模式，基于前导码检测的中等闲/忙模式，以及基于虚拟感知的中等闲/忙模式。 第二，它提供了传达测量请求和报告的机制，如IEE 802.11的情况。 最后，它定义了可以将这些测量推导出来的信息，作为以下发现：非802设备，802.11e系统，基于802.11e竞争的介质访问优先级，802.11e控制介质访问使用，802.11b / g存在和 隐藏站。

    Aligning 802.11e HCF and 802.11h TPC operations
    4.
    发明授权
    Aligning 802.11e HCF and 802.11h TPC operations 有权
    对齐802.11e HCF和802.11h TPC操作

    公开(公告)号：US07245592B2

    公开(公告)日：2007-07-17

    申请号：US10119577

    申请日：2002-04-10

    申请人： Amjad Soomro ,  Sunghyun Choi ,  Javier del Prado Pavon

    发明人： Amjad Soomro ,  Sunghyun Choi ,  Javier del Prado Pavon

    IPC分类号： G08C17/00

    CPC分类号： H04W52/367 ,  H04W84/12 ,  H04W92/18

    摘要： A granted TxOP holder transmits the first frame of a QSTA-to-QSTA communication at a power level sufficient to ensure correct reception by the destination and at least detection by the HC, and then, with exceptions, transmits subsequent frames at a power level merely sufficient to ensure correct reception by the destination, regardless of reception or detection by the HC. Subsequent frames that must be received by the HC, such as those changing the TC queue size or requesting extension of the current TxOP, are transmitted at a power sufficient to ensure reception by the HC as well as the destination, as are the last frame(s). The HC is constrained from reclaiming the channel unconditionally merely because of failure to detect activity, and recovery is limited to the TxOP holder.

    摘要翻译： 授权的TxOP持有者以足以确保目的地的正确接收和至少由HC进行的检测的功率水平发送QSTA至QSTA通信的第一帧，然后例如仅在功率级别发送后续帧 足以确保目的地的正确接收，不管HC接收或检测。 必须由HC接收的后续帧，例如改变TC队列大小或请求扩展当前TxOP的后续帧，以足以确保HC以及目的地的接收的功率发送，如同最后一帧（ s）。 HC被限制在无条件地回收信道，仅因为无法检测到活动，并且恢复仅限于TxOP持有者。

    Method for scheduling service periods in a wireless local area network (wlan)
    5.
    发明申请
    Method for scheduling service periods in a wireless local area network (wlan) 有权
    在无线局域网（wlan）中调度服务周期的方法

    公开(公告)号：US20060171362A1

    公开(公告)日：2006-08-03

    申请号：US10548707

    申请日：2004-03-05

    申请人： Atul Garg ,  Javier Del Prado Pavon ,  Sai Shankar ,  Amjad Soomro ,  Zhun Zhong

    发明人： Atul Garg ,  Javier Del Prado Pavon ,  Sai Shankar ,  Amjad Soomro ,  Zhun Zhong

    IPC分类号： H04Q7/24

    CPC分类号： H04W74/04 ,  H04J3/0655 ,  H04W72/1263 ,  H04W84/12

    摘要： A wireless local area network (WLAN) includes at least one hybrid coordinator (HC) and at least one Quality of Service Station (QSTA). The HC transmits a schedule frame element (SEF). The WLAN also includes a clocking mechanism that sets a substantially absolute start time of a service interval. A method of synchronizing the HC and the QSTA includes transmitting a schedule element frame (SEF), and setting a substantially absolute start-time of a service interval, and a first transmitted frame element.

    摘要翻译： 无线局域网（WLAN）包括至少一个混合协调器（HC）和至少一个服务质量站（QSTA）。 HC发送调度帧元素（SEF）。 WLAN还包括设置服务间隔的基本绝对的开始时间的计时机制。 一种同步HC和QSTA的方法包括发送调度元素帧（SEF），并且设置服务间隔的基本上绝对的开始时间和第一传输帧元素。

    System and method for specifying measurement request start time
    9.
    发明授权
    System and method for specifying measurement request start time 有权
    用于指定测量请求开始时间的系统和方法

    公开(公告)号：US07903570B2

    公开(公告)日：2011-03-08

    申请号：US10556010

    申请日：2004-05-03

    申请人： Amjad Soomro ,  Zhun Zhong ,  Stefan Mangold

    发明人： Amjad Soomro ,  Zhun Zhong ,  Stefan Mangold

    IPC分类号： G01R31/08 ,  H04W4/00 ,  H04J3/06

    CPC分类号： H04W24/10 ,  H04W84/12 ,  H04W84/18

    摘要： The present invention relates to specification of the start time for taking measurements in wireless local area networks (WLAN), in which the start time of measurements to be taken is included in a Measurement Start Time field of a Measurement Request Frame and the interpretation of the start time for a specific measured element is determined by a Mode field included in each Measurement Request Element field of the Measurement Request Frame. Optionally, the start time of a Measurement Request Frame is specified using a time synchronization function (TSF) timer value or part thereof in order to avoid ambiguities in interpretation of the start time reported.

    摘要翻译： 本发明涉及用于在无线局域网（WLAN）中进行测量的开始时间的规范，其中待测量的开始时间被包括在测量请求帧的测量开始时间字段中，并且解释 特定测量元素的开始时间由测量请求帧的每个测量请求元素字段中包括的模式字段确定。 可选地，使用时间同步功能（TSF）定时器值或其一部分来指定测量请求帧的开始时间，以避免解释所报告的开始时间的模糊性。

    Method and System For Signaling Available Channels in a Wireless Network
    10.
    发明申请
    Method and System For Signaling Available Channels in a Wireless Network 有权
    无线网络中信令可用信道的方法和系统

    公开(公告)号：US20080280621A1

    公开(公告)日：2008-11-13

    申请号：US11908511

    申请日：2006-03-09

    申请人： Amjad Soomro ,  Dave Cavalcanti

    发明人： Amjad Soomro ,  Dave Cavalcanti

    IPC分类号： H04Q7/20

    CPC分类号： H04W48/08 ,  H04W36/0072 ,  H04W88/08

    摘要： In order to better and more easily identify candidate APs and/or channels, an AP can transmit frames announcing its capabilities in a channel where it is not serving. For example, if an AP is operating in channel 1 and has created a Basic Service Set ID (BSSID) in that channel, it is permitted to transmit frames announcing its capabilities in another channel, for example channel 3, where another AP may or may not be operating.

    摘要翻译： 为了更好和更容易地识别候选AP和/或信道，AP可以在其不在服务的信道中传送宣布其能力的帧。 例如，如果AP在信道1中操作并且在该信道中创建了基本业务集ID（BSSID），则允许在另一个信道（例如信道3）中传送其能力的帧，其中另一个AP可以或可以 不运行