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    Fair rate allocation on an IEEE 802.11e communication medium
    1.
    发明授权
    Fair rate allocation on an IEEE 802.11e communication medium 有权
    在IEEE 802.11e通信介质上的公平速率分配

    公开(公告)号：US07756089B2

    公开(公告)日：2010-07-13

    申请号：US10570538

    申请日：2004-08-23

    申请人： Chun Ting Chou ,  Sai Shankar Nandagopalan ,  Javier Del Prado Pavon

    发明人： Chun Ting Chou ,  Sai Shankar Nandagopalan ,  Javier Del Prado Pavon

    IPC分类号： H04J3/00

    CPC分类号： H04W74/0816 ,  H04W28/10 ,  H04W74/08 ,  H04W84/12

    摘要： Wireless stations (108-1-108-N) contending for exclusive access for a predetermined period of time (S232) to transmit on a communication medium (112) are regulated by a common external controller (104) using a single timing parameter (S204). Attempts at transmission access are preceded by respective delays that are expired simultaneously and at a common rate by the stations at times when the stations sense the medium to be idle (S224). The delays are pseudo-randomly selected to avoid collisions among stations in their respective access attempts (S208). Default, initial values of the respective delays (S204) applied to the stations, when multiplied by the respective expected number of transmission attempts by the stations over the long term over periods of time when no transmission attempt is unsuccessful, yield respective products equal to a constant value common to all stations (S312). The default values therefore serve as a knob by which the controller regulates air time opportunity.

    摘要翻译： 在通信介质（112）上进行发送的在预定时间段（S232）中进行专用访问的无线站（108-1-108-N）由公共外部控制器（104）使用单个定时参数来调节（S204 ）。 在发送接入的尝试之前是在站感测媒体空闲的时刻（S224）的同时到达的各个延迟以及站的共同速率。 延迟是伪随机选择的，以避免各个接入尝试中的站之间的冲突（S208）。 默认情况下，应用于站的各个延迟的初始值（S204）当乘以在不发送尝试不成功的时间段内长时间站的相应预期发送次数时，产生等于 所有站通用的常数值（S312）。 因此，默认值用作控制器调节空气时间机会的旋钮。

    AUTOMATIC CANCELLATION OF BP MERGER IN MULTI-BAND OFDM ALLIANCE (MBOA) ULTRA WIDE BAND (UWB) SYSTEMS
    2.
    发明申请
    AUTOMATIC CANCELLATION OF BP MERGER IN MULTI-BAND OFDM ALLIANCE (MBOA) ULTRA WIDE BAND (UWB) SYSTEMS 失效
    超宽带（UWB）系统在多带OFDM联盟（MBOA）中自动消除BP并发

    公开(公告)号：US20100290387A1

    公开(公告)日：2010-11-18

    申请号：US11916234

    申请日：2006-05-31

    申请人： Chun-Ting Chou ,  Javier Del Prado Pavon

    发明人： Chun-Ting Chou ,  Javier Del Prado Pavon

    IPC分类号： H04W4/00

    CPC分类号： H04B1/719

    摘要： The current MBOA UWB MAC protocol requires a device that detects alien devices to include a BP Switch IE in its beacon so that its neighbors may learn the presence of the alien devices and follow that device to relocate their beacons in a coordinated fashion. However, during the transition period of beacon relocation, that device may decide to halt the relocation process as required by the standard and such decisions also have to be received by its neighbors. In such a case, a BP switch IE will be generated by that device which includes a BPST offset equal to a length of a superframe.

    摘要翻译： 目前的MBOA UWB MAC协议需要一种能够检测外来设备在其信标中包含BP交换机IE的设备，以便其邻居可以学习外来设备的存在并跟随该设备以协调的方式重新定位其信标。 然而，在信标重定位的过渡期间，该设备可以根据标准的要求决定停止重定位过程，并且这样的决定也必须由其邻居接收。 在这种情况下，BP开关IE将由该设备生成，该设备包括等于超帧长度的BPST偏移量。

    Coordinated beacon period (BP) merging for distributed wireless networks
    3.
    发明授权
    Coordinated beacon period (BP) merging for distributed wireless networks 有权
    协调信标周期（BP）合并分布式无线网络

    公开(公告)号：US08169985B2

    公开(公告)日：2012-05-01

    申请号：US11816333

    申请日：2006-02-14

    申请人： Chun-Ting Chou ,  Javier Del Prado Pavon ,  Sai Shankar Nandagopalan

    发明人： Chun-Ting Chou ,  Javier Del Prado Pavon ,  Sai Shankar Nandagopalan

    IPC分类号： H04W4/00

    CPC分类号： H04W84/18 ,  H04W48/08 ,  H04W72/1278

    摘要： The application describes a method to merge two wireless networks in which each terminal gets a beacon slot within the beacon period. In order to merge two networks, the beacon slots have to be time-coordinated such that the beacon slots of the first network are completed before the beacon slots of the second network begin. The method includes transmitting a beacon frame having a beacon period switch information element which instructs the neighboring terminals in the first network of the need to merge, provides clock synchronization information; provides the time of the merge; and informs the neighboring terminals which beacon slot to occupy in the beacon period of the merged network. In order to deal with hidden terminals, the information needs to be forwarded terminal-to-terminal within each network.

    摘要翻译： 该应用描述了一种合并两个无线网络的方法，其中每个终端在信标周期内获得信标时隙。 为了合并两个网络，信标时隙必须被时间协调，使得第一网络的信标时隙在第二网络的信标时隙开始之前完成。 该方法包括发送具有指示需要合并的第一网络中的相邻终端的信标周期切换信息单元的信标帧，提供时钟同步信息; 提供合并的时间; 并通知相邻终端在合并网络的信标周期中哪个信标时隙占据。 为了处理隐藏的终端，需要在每个网络内终端到终端转发信息。

    Efficient channel architectures for multi-channel MAC protocols in wireless ad hoc networks
    8.
    发明授权
    Efficient channel architectures for multi-channel MAC protocols in wireless ad hoc networks 有权
    用于无线自组织网络中的多信道MAC协议的高效信道架构

    公开(公告)号：US08279895B2

    公开(公告)日：2012-10-02

    申请号：US12441643

    申请日：2007-09-21

    申请人： Carlos M. Cordeiro ,  Javier Del Prado Pavon

    发明人： Carlos M. Cordeiro ,  Javier Del Prado Pavon

    IPC分类号： H04J3/06

    CPC分类号： H04W80/02 ,  H04B7/2656

    摘要： The system (500), apparatus (400), and method of the present invention provide three architectures for logically organizing multiple channels: a parallel multi-channel superframe (PMS) (100), a sequential multi-channel superframe (SMS) (200), and a non-overlapping multi-channel superframe (NMS) (300). Each of these architectures arises from different trade-offs and is applicable to any multi-channel MAC protocol that is based on the concept of a superframe, e.g., IEEE 802.11 superframe.

    摘要翻译： 本发明的系统（500），装置（400）和方法提供了用于逻辑组织多个信道的三种架构：并行多信道超帧（PMS）（100），顺序多信道超帧（SMS） ）和不重叠的多信道超帧（NMS）（300）。 这些架构中的每一个来自不同的权衡，并且适用于基于超帧（例如，IEEE 802.11超帧）的概念的任何多信道MAC协议。

    Generalized “evenly distributed MAS allocation” policy to support low-power UWB applications
    9.
    发明授权
    Generalized “evenly distributed MAS allocation” policy to support low-power UWB applications 有权
    广泛的“均匀分布的MAS分配”政策来支持低功耗UWB应用

    公开(公告)号：US07974239B2

    公开(公告)日：2011-07-05

    申请号：US11817830

    申请日：2006-03-08

    申请人： Richard Y. Chen ,  Takashi Sato ,  Javier Del Prado Pavon

    发明人： Richard Y. Chen ,  Takashi Sato ,  Javier Del Prado Pavon

    IPC分类号： H04W4/00

    CPC分类号： H04W72/087 ,  H04L47/10 ,  H04L47/14 ,  H04L47/2475 ,  H04W24/00 ,  H04W52/0216 ,  H04W52/0219 ,  H04W74/04 ,  H04W84/12 ,  Y02D70/142

    摘要： In order that media access slots MAS are allocated based on minimum latency requirements of, for example, not less than 4 ms, or on a medium utilization efficiency or power consumption requirement for a minimum reservation block length, both high-efficiency and low-latency schemes (or category) need to coexist within a superframe with fair support given to both. The maximization of contiguous available MAS between low-latency and high-efficiency schemes ensures that power saving and overhead risk are minimized without compromising the support for low-latency applications.

    摘要翻译： 为了基于例如不小于4ms的最小等待时间要求或者对于最小预留块长度的中等利用效率或功耗要求来分配媒体接入时隙MAS，高效率和低延迟 计划（或类别）需要在一个超级框架内共存并给予两者公平的支持。 连续可用的MAS在低延迟和高效率方案之间的最大化确保了节省能源和开销风险的最小化，而不会影响对低延迟应用程序的支持。

    Methods to resolve tsf timer ambiguity of ieee 802.11e schedule element
    10.
    发明申请
    Methods to resolve tsf timer ambiguity of ieee 802.11e schedule element 有权
    解决ieee 802.11e调度元素的tsf定时器模糊度的方法

    公开(公告)号：US20070121777A1

    公开(公告)日：2007-05-31

    申请号：US10572925

    申请日：2004-09-20

    申请人： Javier Del Prado Pavon ,  Amjad Soomro ,  Sai Nandagopalan ,  Stefan Mangold ,  Zhun Zhong

    发明人： Javier Del Prado Pavon ,  Amjad Soomro ,  Sai Nandagopalan ,  Stefan Mangold ,  Zhun Zhong

    IPC分类号： G04F10/04

    CPC分类号： H04W56/00 ,  H04W72/12

    摘要： A plurality of methods, computer program product, and apparatus that use a lower 32 bit field of a 64-bit 802.11 TSF timer, so as to encode the reference time instant without the ambiguity as to whether there the reference time is referring to a future time or a past time. According to an aspect of the present invention, the fact that the low order 32 bits of the TSF timer wraps over in about 71 minutes is exploited to remove any ambiguity in the reference times contained in the Schedule Element frame. One method employs an algorithm base on distance between two reference points to determine whether the timer has wrapped around a time period, and another method uses a delay interval or a timeout to determine whether or not the TSF timer is wrapped or unwrapped. Another method includes determining whether an absolute value of X−O is less than, or greater than or equal to maximum value M/2.

    摘要翻译： 使用64位802.11 TSF定时器的低32位字段的多种方法，计算机程序产品和装置，以便对参考时刻进行编码，而不存在关于参考时间是指未来的歧义 时间或过去的时间。 根据本发明的一个方面，利用了大约71分钟内TSF定时器的低阶32位包裹的事实来消除包含在时间表元素帧中的参考时间中的任何歧义。 一种方法采用基于两个参考点之间的距离的算法来确定定时器是否已经缠绕了一段时间，另一种方法使用延迟间隔或超时来确定TSF定时器是否被包装或解包。 另一方法包括确定X-O的绝对值是否小于或大于或等于最大值M / 2。