Network capacity planning based on buffers occupancy monitoring
    21.
    发明授权
    Network capacity planning based on buffers occupancy monitoring 有权
    基于缓冲区占用监控的网络容量规划

    公开(公告)号:US06690646B1

    公开(公告)日:2004-02-10

    申请号:US09603710

    申请日:2000-06-27

    IPC分类号: H04L1254

    摘要: A method and a system of network capacity planning for use in a high speed packet switching network. The network comprises a plurality of switching nodes interconnected through a plurality of communication links, each of the switching nodes comprises means for switching packets from at least one input link to at least one output link. Each of the output links is coupled to at least one buffer in the switching node for queuing packets before they are transmitted over the output link. In each of the switching nodes and for each of the output links, a time distribution of the occupancy of each buffer during a predetermined monitoring time period is measured, and stored in a centralized memory location. Then, the buffer occupancy time distribution data are retrieved from the centralized memory location in all the switching nodes, gathered and stored in a network dedicated server. These buffer occupancy time distribution data for all the nodes are transmitted from the dedicated network server to a network monitoring center. In the network monitoring center, the buffer occupancy time distribution data are integrated on a larger time scale, and stored. Finally, the integrated buffer occupancy time distribution data are used to apply network capacity planning actions to the network resources.

    摘要翻译: 一种用于高速分组交换网络的网络容量规划方法和系统。 网络包括通过多个通信链路互连的多个交换节点,每个交换节点包括用于将分组从至少一个输入链路切换到至少一个输出链路的装置。 每个输出链路耦合到交换节点中的至少一个缓冲器,用于在分组在通过输出链路传输之前排队。 在每个交换节点和每个输出链路中,测量在预定监视时间段期间每个缓冲器的占用时间分布,并存储在集中式存储器位置。 然后,从所有交换节点的集中式存储单元检索缓冲器占用时间分布数据,收集并存储在网络专用服务器中。 这些用于所有节点的缓冲器占用时间分布数据从专用网络服务器发送到网络监控中心。 在网络监控中心,将缓冲区占用时间分布数据集成在较大的时间尺度上,并进行存储。 最后,集成缓冲区占用时间分布数据用于将网络容量规划动作应用于网络资源。

    Method of self-learning for the switching nodes of a data transmission network
    22.
    发明授权
    Method of self-learning for the switching nodes of a data transmission network 失效
    数据传输网络交换节点的自学习方法

    公开(公告)号:US06628655B1

    公开(公告)日:2003-09-30

    申请号:US09490767

    申请日:2000-01-24

    IPC分类号: H04L1228

    摘要: Method of self-learning for a switching node in a data transmission network (10) wherein Internet Protocol (IP) data frames are transmitted between a sending unit (20 or 24) and a receiving unit (22 or 26) via an ingress switching node (12) linked to an egress switching node (16 or 18) by a plurality of intermediate switching nodes (14) interconnected by trunks. The method consists principally in generating, in the input port/trunk interface of the switching node, a switch header including a source identification field, a destination identification field and a temporary label identifying the flow of data in response to its first data frame, this first switch header being concatenated to said data frame before being transmitted to the router interface of the switching node via its switch engine when the data frame does not belong to a known flow of data and the router has to define the routing of the flow of data. An update message is sent back from the output trunk/port interface to the input port/trunk interface to update the latter with the destination identification and with a switching label replacing the temporary label associated with the flow of data, in order to transmit the following frames of the flow of data directly to the trunk/port interface by using this switching label.

    摘要翻译: 数据传输网络(10)中的交换节点的自学习方法,其中因特网协议(IP)数据帧经由入口交换节点在发送单元(20或24)和接收单元(22或26)之间传输 (12)通过由干线互连的多个中间交换节点(14)链接到出口交换节点(16或18)。 该方法主要包括在交换节点的输入端口/中继接口中生成包括源标识字段,目的地标识字段和标识响应于其第一数据帧的数据流的临时标签的交换机标题,该 当数据帧不属于已知的数据流并且路由器必须定义数据流的路由时,第一交换机头部被连接到所述数据帧,然后经由其交换引擎被发送到交换节点的路由器接口 。 将更新消息从输出中继/端口接口发送回输入端口/中继接口,以更新后者与目的地标识,并用交换标签代替与数据流相关联的临时标签,以便传送以下信息 通过使用该切换标签将数据流的帧直接发送到中继/端口接口。

    Method and system for non disruptively assigning link bandwidth to a user in a high speed digital network
    23.
    发明授权
    Method and system for non disruptively assigning link bandwidth to a user in a high speed digital network 失效
    用于在高速数字网络中不间断地向用户分配链路带宽的方法和系统

    公开(公告)号:US06262974B1

    公开(公告)日:2001-07-17

    申请号:US09213506

    申请日:1998-12-17

    IPC分类号: H04L1226

    摘要: A method based on predefined connection priorities for assigning link bandwidth to a requesting user in a high speed digital network interconnecting network users through a path including network nodes connected through high speed links. According to this method, a predefined reservable link bandwidth is split into so-called nominal bandwidth portions and common bandwidth portions, both assignable to the same connections on a priority basis. Each of the common bandwidth priorities is individually related to a nominal bandwidth priority through a predefined relationship, making the common bandwidth priorities always lower than any nominal priority. In this way the requested link connection bandwidth, whatever be its nominal priority, is made preemptable primarily on all common bandwidth, thus avoiding the disruption of any network connection which is already established.

    摘要翻译: 一种基于预定义的连接优先级的方法,用于将高速数字网络中的请求用户分配链路带宽,通过包括通过高速链路连接的网络节点的路径互连网络用户。根据该方法,预定义的可预留链路带宽被分为 称为标称带宽部分和公共带宽部分,可以优先分配给相同的连接。 每个公共带宽优先级通过预定义的关系单独地与标称带宽优先级相关,使得共同带宽优先级始终低于任何标称优先级。 以这种方式,无论作为其标称优先级,所请求的链路连接带宽主要在所有公共带宽上可抢占,从而避免已经建立的任何网络连接的中断。

    End-to-end delay estimation in high speed communication networks
    24.
    发明授权
    End-to-end delay estimation in high speed communication networks 失效
    高速通信网络中的端到端延迟估计

    公开(公告)号:US06226266B1

    公开(公告)日:2001-05-01

    申请号:US08946237

    申请日:1997-10-07

    IPC分类号: H04L1256

    摘要: An apparatus and method that determines the end-to-end transit delay at each node of a path, in accordance with the selected probability value indicative of the probability to experience a delay at each node that is smaller than the computed transit delay. Then the computed transit delays per nodes are combined to obtain the end-to-end delay of the path, the combination being either an arithmetic operation or a convolution operation. A method to approximate the convolution operation is also disclosed.

    摘要翻译: 根据所选择的概率值,其指示在每个节点处经历比所计算的过渡延迟小的延迟的概率,确定路径的每个节点处的端到端传输延迟的装置和方法。 然后将每个节点的计算的传输延迟组合以获得路径的端到端延迟,该组合是算术运算或卷积运算。 还公开了近似卷积运算的方法。

    Method and system for optimizing the connection set up time in high
speed communication networks for recovering from network failure
    25.
    发明授权
    Method and system for optimizing the connection set up time in high speed communication networks for recovering from network failure 失效
    在高速通信网络中优化连接建立时间以从网络故障中恢复的方法和系统

    公开(公告)号:US6038212A

    公开(公告)日:2000-03-14

    申请号:US946243

    申请日:1997-10-07

    摘要: This method enables optimizing the time required for reestablishing connections between end users attached to a data communication network, which connections were disrupted due to a network failure. The network includes access nodes and transit nodes interconnected with network links/trunks (with no specific distinction being herein required between both designations of a communication line). The end users are attached to the network through access nodes and each said access node permanently stores an image of the current network trunk including the number N.sub.i of connections currently supported by said network trunk. Upon detection of a trunk failure, each access node supporting connections affected by said failure, is made aware of the total number (N.sub.i) of connections in each priority group affected by the failure, together with a network dependent parameter (TP) representing the elementary processing time required to reroute a single network connection. Then each access node may independently, start a first reconnection set-up procedure at a time Ri randomly selected between zero and (N.sub.i -n.sub.i) *TP, where n.sub.i is the number of connections supported by the access node in each priority group, and then space the required subsequent reconnections set-ups by a time equal to (T.sub.i -R.sub.i)/n.sub.i, with T.sub.i =N.sub.i *TP.

    摘要翻译: 该方法能够优化重新建立连接到数据通信网络的终端用户之间的连接所需的时间,哪些连接由于网络故障而中断。 网络包括与网络链路/中继线互连的接入节点和传输节点(在通信线路的两个指定之间,这里不需要具体区分)。 最终用户通过接入节点连接到网络,并且每个所述接入节点永久地存储包括当前由所述网络中继线支持的连接的数目Ni的当前网络中继的图像。 在检测到中继线故障时,支持受所述故障影响的连接的每个接入节点被识别出由故障影响的每个优先级组中的连接的总数(Ni),以及表示基站的网络相关参数(TP) 重新路由单个网络连接所需的处理时间。 然后,每个接入节点可以独立地在零和(Ni-ni)* TP之间随机选择的时间Ri开始第一重新连接建立过程,其中,ni是每个优先级组中的接入节点支持的连接数,以及 然后将所需的后续重新连接设置空间等于(Ti-Ri)/ ni,Ti = Ni * TP。

    Method and system for non-disruptively assigning link bandwidth to a
user in a high speed digital network
    26.
    发明授权
    Method and system for non-disruptively assigning link bandwidth to a user in a high speed digital network 失效
    用于在高速数字网络中不间断地将链路带宽分配给用户的方法和系统

    公开(公告)号:US5881050A

    公开(公告)日:1999-03-09

    申请号:US785944

    申请日:1997-01-22

    摘要: A method based on predefined connection priorities for assigning link bandwidth to a requesting user in a high speed digital network interconnecting network users through a path including network nodes connected through high speed links. According to this method, a predefined reservable link bandwidth is split into so-called nominal bandwidth portions and common bandwidth portions, both assignable to the same connections on a priority basis. Each of the common bandwidth priorities is individually related to a nominal bandwidth priority through a predefined relationship, making the common bandwidth priorities always lower than any nominal priority. In this way the requested link connection bandwidth, whatever be its nominal priority, is made preemptable primarily on all common bandwidth, thus avoiding the disruption of any network connection which is already established.

    摘要翻译: 一种基于预定义的连接优先级的方法,用于将高速数字网络中的请求用户分配链路带宽,通过包括通过高速链路连接的网络节点的路径互连网络用户。 根据该方法,将预定义的可预留链路带宽分为所谓的标称带宽部分和公共带宽部分,两者都可优先分配给相同的连接。 每个公共带宽优先级通过预定义的关系单独地与标称带宽优先级相关,使得共同带宽优先级始终低于任何标称优先级。 以这种方式,无论作为其标称优先级,所请求的链路连接带宽主要在所有公共带宽上可抢占,从而避免已经建立的任何网络连接的中断。

    Method and apparatus for DTMF detection
    28.
    发明授权
    Method and apparatus for DTMF detection 失效
    用于DTMF检测的方法和装置

    公开(公告)号:US5353345A

    公开(公告)日:1994-10-04

    申请号:US960744

    申请日:1992-10-14

    申请人: Claude Galand

    发明人: Claude Galand

    IPC分类号: H04Q1/457 H04Q1/46 H04M3/00

    CPC分类号: H04Q1/46 H04Q1/4575

    摘要: A DTMF tone is detected through the tracking of two tunable filters HAVING coefficients within so-called tunnels each limited by thresholds derived from the tone frequency components to be detected. In and out-band energies E1(n) and E2(n) are used to further validate tone detection.

    摘要翻译: 通过跟踪两个可调滤波器来检测DTMF音,这些滤波器在所谓的隧道内具有各自受限于由要检测的音调频率分量导出的阈值的系数。 输入和输出带外能量E1(n)和E2(n)用于进一步验证音调检测。

    Voice coding process and device for implementing said process
    29.
    发明授权
    Voice coding process and device for implementing said process 失效
    语音编码过程和用于实现所述过程的设备

    公开(公告)号:US5001758A

    公开(公告)日:1991-03-19

    申请号:US35806

    申请日:1987-04-08

    IPC分类号: H04B14/04 G10L19/06 H03M7/30

    CPC分类号: G10L19/06

    摘要: The voice signal is analyzed to derive therefrom a low frequency base band signal, linear prediction coefficients and high frequency (HF) descriptors. Said HF descriptors include HF energy indications as well as indications relative to the phase shift between the low frequency and the high frequency band. Said HF descriptors are used during the voice synthesis operation to provide an inphase HF bandwidth component to be added to the base band prior to be used for driving a linear prediction synthesis filter tuned using said linear prediction parameters.