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    Method for enhancing fairness and performance in a multihop ad hoc network and corresponding system
    1.
    发明授权
    Method for enhancing fairness and performance in a multihop ad hoc network and corresponding system 失效
    在多跳自组织网络和相应系统中增强公平性和性能的方法

    公开(公告)号：US07397785B2

    公开(公告)日：2008-07-08

    申请号：US10713430

    申请日：2003-11-17

    申请人： Haitao Wu ,  Liang Sun ,  Shiduan Cheng ,  Jian J. Ma

    发明人： Haitao Wu ,  Liang Sun ,  Shiduan Cheng ,  Jian J. Ma

    IPC分类号： H04J3/06

    CPC分类号： H04W74/0816 ,  H04W16/14 ,  H04W84/18

    摘要： A method for enhancing the fairness and performance in a multihop ad hoc network, the method usually including providing contention synchronization information regarding a transmission between nodes of the network, wherein the information is routinely provided to nodes in a range of two hops from the nodes participating at the transmission. The method also typically includes setting, after successfully finishing the transmission, a waiting time for the nodes participating at the transmission, in which these nodes backoff from accessing a transmission medium.

    摘要翻译： 一种用于增强多跳自组织网络中的公平性和性能的方法，所述方法通常包括提供关于网络节点之间的传输的争用同步信息，其中该信息被定期地提供给来自节点参与的两跳范围内的节点 在传输。 该方法还通常包括在成功完成传输之后设置参与传输的节点的等待时间，其中这些节点退出访问传输介质。

    Self-adaptive scheduling method and network element
    2.
    发明授权
    Self-adaptive scheduling method and network element 失效
    自适应调度方法和网元

    公开(公告)号：US07917648B2

    公开(公告)日：2011-03-29

    申请号：US10480215

    申请日：2002-06-27

    申请人： Haitao Wu ,  Keping Long ,  Shiduan Cheng ,  Jian Ma

    发明人： Haitao Wu ,  Keping Long ,  Shiduan Cheng ,  Jian Ma

    IPC分类号： G06F15/173 ,  H04L12/28 ,  H04L12/66 ,  H04L12/16

    CPC分类号： H04L29/06 ,  H04L47/20 ,  H04L47/2408 ,  H04L47/2441 ,  H04L47/245 ,  H04L47/50 ,  H04L47/623 ,  H04L47/627 ,  H04L69/16 ,  H04L69/163

    摘要： The present invention relates to a method and network element for scheduling data transmission in a packet data network, e.g. a differentiated services network. Data traffic of a predetermined traffic class is classified based on a predetermined traffic profile, e.g. responsive or non-responsive traffic, and an in-profile rate of the data traffic is estimated. Then, a weight determining a transmit order of queued data packets of said predetermined traffic class is adjusted according to the estimated in-profile rate. Thus, the data traffic is marked into different classes based on the traffic profile and a queue scheduler improves fairness between the classified flows in the packet data network. Thereby, enhanced fairness between traffic profiles can be achieved easily and effectively.

    摘要翻译： 本发明涉及用于在分组数据网络中调度数据传输的方法和网络元件，例如， 差异化服务网络。 预定业务类别的数据业务根据预定的业务量轮廓进行分类。 响应或非响应流量，并且估计数据流量的嵌入率。 然后，根据估计的参数率来调整确定所述预定业务类别的排队数据分组的发送顺序的权重。 因此，基于流量简档将数据业务标记为不同的类，并且队列调度器提高分组数据网络中的分类流之间的公平性。 因此，可以容易且有效地实现业务简档之间增强的公平性。

    TCP-friendly markers and methods using token buckets
    3.
    发明授权
    TCP-friendly markers and methods using token buckets 失效
    使用令牌桶的TCP友好标记和方法

    公开(公告)号：US07467223B2

    公开(公告)日：2008-12-16

    申请号：US10676576

    申请日：2003-09-30

    申请人： Haitao Wu ,  Keping Long ,  Shiduan Cheng ,  Jian Ma ,  Qian Wang ,  Runtong Zhang

    发明人： Haitao Wu ,  Keping Long ,  Shiduan Cheng ,  Jian Ma ,  Qian Wang ,  Runtong Zhang

    IPC分类号： G06F15/173 ,  G06F11/00

    CPC分类号： H04L47/10 ,  H04L47/215 ,  H04L47/2408 ,  H04L47/29 ,  H04L47/31

    摘要： Systems and methods are disclosed for marking a packet with a precedence value in a TCP-friendly way. One system and method marks packets with a precedence value based on a probability function. Another system and method marks packets with one of three precedence values based on network traffic but enables interleaving of differently marked packets when a certain number of packets have been successively marked with a low or medium precedence value.

    摘要翻译： 公开了用于以TCP友好的方式标记具有优先级值的分组的系统和方法。 一个系统和方法基于概率函数标记具有优先级值的分组。 另一种系统和方法根据网络流量标记具有三个优先级值之一的数据包，但是当一定数量的数据包已被连续标记为低或中等优先级值时，可以对不同标记数据包进行交织。

    Enhancement of explicit congestion notification (ECN) for wireless network applications
    5.
    发明授权
    Enhancement of explicit congestion notification (ECN) for wireless network applications 有权
    增强无线网络应用的显式拥塞通知（ECN）

    公开(公告)号：US06741555B1

    公开(公告)日：2004-05-25

    申请号：US09594463

    申请日：2000-06-14

    申请人： Xiang Li ,  Jing Wu ,  Shiduan Cheng ,  Jian Ma

    发明人： Xiang Li ,  Jing Wu ,  Shiduan Cheng ,  Jian Ma

    IPC分类号： H04L1226

    CPC分类号： H04W80/06 ,  H04L47/10 ,  H04L47/263 ,  H04L47/27 ,  H04L47/31 ,  H04L69/16 ,  H04L69/161 ,  H04L69/163

    摘要： An Explicit Congestion Notification (ECN) method is disclosed for wireless applications to avoid network congestion in a TCP/IP packet-switched network. Such method comprises transmitting, at a source node, data packets to a destination node, via at least an intermediate node; determining, at the intermediate node, if an incipient congestion is encountered, setting a Congestion Experienced (CE) flag in each data packet to notify congestion; sending, at the destination node, an ECN-Echo acknowledgment packet back to the source node to inform congestion; reducing, at the source node, a congestion window and a transmission rate to avoid congestion; if the packet loss is due to congestion, re-transmitting, at the source node, only a lost packet to the destination node; alternatively, if the packet loss is due to transmission error, re-transmitting, the lost packet to the destination node, while increasing a round-trip timeout but maintaining the same congestion window.

    摘要翻译： 针对无线应用公开了一种显式拥塞通知（ECN）方法，以避免TCP / IP分组交换网络中的网络拥塞。 这种方法包括经由至少中间节点在源节点将数据分组发送到目的地节点; 在中间节点处确定是否遇到初始拥塞，在每个数据分组中设置拥塞经验（CE）标志以通知拥塞; 在目的地节点处将ECN-Echo确认分组发送回源节点以通知拥塞; 在源节点减少拥塞窗口和传输速率以避免拥塞; 如果分组丢失是由于拥塞，则在源节点处仅将丢失的分组重新发送到目的地节点; 或者，如果分组丢失是由于传输错误，则将丢失分组重新发送到目的地节点，同时增加往返超时但保持相同的拥塞窗口。