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    • 3. 发明授权
    • Fair rate allocation on an IEEE 802.11e communication medium
    • 在IEEE 802.11e通信介质上的公平速率分配
    • US07756089B2
    • 2010-07-13
    • US10570538
    • 2004-08-23
    • Chun Ting ChouSai Shankar NandagopalanJavier Del Prado Pavon
    • Chun Ting ChouSai Shankar NandagopalanJavier Del Prado Pavon
    • H04J3/00
    • H04W74/0816H04W28/10H04W74/08H04W84/12
    • 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.
    • 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。
    • 4. 发明授权
    • Coordinated beacon period (BP) merging for distributed wireless networks
    • 协调信标周期(BP)合并分布式无线网络
    • US08169985B2
    • 2012-05-01
    • US11816333
    • 2006-02-14
    • Chun-Ting ChouJavier Del Prado PavonSai Shankar Nandagopalan
    • Chun-Ting ChouJavier Del Prado PavonSai Shankar Nandagopalan
    • H04W4/00
    • H04W84/18H04W48/08H04W72/1278
    • 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.
    • 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。