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    • 5. 发明授权
    • Method and system for extending the reach of a data communication channel using a flow control interception device
    • 一种使用流量控制拦截装置扩展数据通信信道范围的方法和系统
    • US06859437B2
    • 2005-02-22
    • US10379611
    • 2003-03-05
    • Pierre MillerBernard MarchandMarc W. Leclair
    • Pierre MillerBernard MarchandMarc W. Leclair
    • H04L12/56H04J12/28
    • H04L47/29H04L47/10H04L47/26H04L47/30H04L47/39
    • A system and method for extending the reach of a data communication channel using flow control interception devices is described. The method decreases the latency-induced reduction in the data throughput and permits data transmission at subrates through the data communication channel. The method includes transmitting a data frame from a sending device. The data frame is transmitted through the data communication channel if a flow control signal is not asserted. The data frame is buffered if the flow control signal is asserted. The buffered data frame is transmitted through the data communication channel in response the flow control signal changing to an asserted state. The method also includes receiving the transmitted data frame from the data communication channel and transmitting the received data frame to a receiving device if the receiving device is available to process the data frame. If the receiving device is unavailable, the received data frame is buffered until the receiving device becomes available to process the buffered data frame.
    • 描述了使用流控制拦截设备来扩展数据通信信道的范围的系统和方法。 该方法减少了延迟引起的数据吞吐量的降低,并允许通过数据通信信道在子速率上进行数据传输。 该方法包括从发送设备发送数据帧。 如果没有声明流量控制信号,则通过数据通信通道传输数据帧。 如果流量控制信号被断言,则数据帧被缓冲。 缓冲的数据帧通过数据通信信道传输,以响应流控制信号改变为断言状态。 该方法还包括从数据通信信道接收发送的数据帧,并且如果接收设备可用于处理数据帧,则将接收的数据帧发送到接收设备。 如果接收设备不可用,则缓冲接收到的数据帧,直到接收设备变得可用来处理缓冲的数据帧。
    • 6. 发明授权
    • Inter-class schedulers utilizing statistical priority guaranteed queuing and generic cell-rate algorithm priority guaranteed queuing
    • 利用统计优先级保证队列和通用小区速率算法优先级保证排队的类间调度器
    • US06438106B1
    • 2002-08-20
    • US09218510
    • 1998-12-22
    • John PillarBernard MarchandBernard St-Denis
    • John PillarBernard MarchandBernard St-Denis
    • H04L1226
    • H04L12/5602H04L2012/5636H04L2012/5651H04L2012/5667H04L2012/5679H04L2012/5682H04Q11/0478
    • Inter-class schedulers for digital link systems provide high efficiency utilization of limited bandwidth by employing queuing techniques referred to as Statistical Priority Guarantee Queuing (SPGQ) and Generic Cell-Rate Algorithm Priority Guarantee Queuing (GCRA-PGQ). SPGQ “elevates” the priority of otherwise low-priority classes under prescribed circumstances in accordance with a statistical process. The SPGQ scheduler determines whether a number within a range produced by a uniform random number generator lies within a sub-range proportional to the programmed statistical guarantee for a given class. If the number lies within the sub-range associated with a given class, then the priority of that class is elevated to a higher priority when both are eligible to transmit. The GCRA-PGQ scheduler operates as a strict priority mechanism until a class requires bandwidth in excess of a GCRA “window” or threshold for that class. When that occurs, the service priority of that class is temporarily lowered.
    • 用于数字链路系统的类间调度器通过采用称为统计优先级保证排队(SPGQ)和通用小区速率算法优先级保证队列(GCRA-PGQ)的排队技术来提供有限带宽的高效率利用。 按照统计过程,SPGQ根据规定的情况“提高”优先级低优先级的优先级。 SPGQ调度器确定由均匀随机数发生器产生的范围内的数字是否在与给定类的编程统计保证成比例的子范围内。 如果数字在与给定类相关联的子范围内,则当两者都有资格传输时,该类的优先级被提升到更高的优先级。 GCRA-PGQ调度器作为严格的优先级机制运行,直到类需要超过该类的GCRA“窗口”或阈值的带宽。 发生这种情况时,该类的服务优先级暂时降低。