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    Bandwidth control method of packet data in packet switching network and packet switching network system
    9.
    发明授权
    Bandwidth control method of packet data in packet switching network and packet switching network system 有权
    分组交换网络和分组交换网络系统中分组数据的带宽控制方法

    公开(公告)号：US06697370B1

    公开(公告)日：2004-02-24

    申请号：US09343488

    申请日：1999-06-30

    申请人： Tokuro Doi ,  Masatomo Nakano ,  Motoshi Tamura ,  Teruki Niwa

    发明人： Tokuro Doi ,  Masatomo Nakano ,  Motoshi Tamura ,  Teruki Niwa

    IPC分类号： H04L1228

    CPC分类号： H04L12/5601 ,  H04L2012/5624 ,  H04L2012/5632 ,  H04L2012/5634

    摘要： Efficient use of an ATM transmission path becomes possible by multiplexing, into a bandwidth in the bandwidth-assured individual VP, a plurality of users whose traffic volumes are beyond a predetermined value. Installing a bandwidth-unassured common VP for low traffic users makes it possible to switch from the common VP to the individual VP or vice versa under the following conditions. (1) When the user traffic volume, monitored at fixed intervals during the communications through an individual VP, drops below a predetermined threshold value, the individual VP is switched to a common VP. (2) When the user traffic volume, monitored at fixed intervals during the communications through a common VP, exceeds a predetermined threshold value, the common VP is switched to an individual VP. (3) In addition to condition (2), when bandwidth shortage takes place in common VPs, the common VPs of heavy traffic users are switched to individual VPs.

    摘要翻译： 通过将带宽保证的个人VP中的带宽多路复用到其业务量超过预定值的多个用户，可以有效地利用ATM传输路径。 为低流量用户安装带宽不通用的公用VP可以在以下条件下从公共VP切换到单独的VP，反之亦然。 （1）当在通过个人VP通信期间以固定间隔监视的用户业务量下降到预定阈值以下时，个别VP切换到公共VP。 （2）当通过公共VP通信期间以固定间隔监视的用户业务量超过预定阈值时，将公共VP切换到单独的VP。 （3）除条件（2）外，在普通VP中发生带宽短缺的情况下，大量用户的普通VP切换到各个VP。

    Control signal processor and communication system
    10.
    发明授权
    Control signal processor and communication system 失效
    控制信号处理器和通讯系统

    公开(公告)号：US06611505B1

    公开(公告)日：2003-08-26

    申请号：US09230218

    申请日：1999-01-19

    申请人： Shin Nakamura ,  Hiroki Morikawa ,  Masatomo Nakano

    发明人： Shin Nakamura ,  Hiroki Morikawa ,  Masatomo Nakano

    IPC分类号： H04Q700

    CPC分类号： H04W36/0016 ,  H04W80/02

    摘要： The invention reduces an overhead operation required for re-establishment of a physical signal link. A physical signal link (layer 1 link) is switched over keeping a layer 2 link in the OSI reference model. A database 11 stores information indicating physical signal links and information indicating the maximum length of a layer 2 frame determined according to the ability of physical signal links. When a physical signal link is to be switched over, a target physical signal link is selected and a physical signal link used by the link is switched to the target physical link without releasing the single layer 2 link. The maximum length corresponding to the target physical signal link is obtained from the database 11, and layer 2 frames having the maximum length are transmitted. Switching over a physical signal link is performed in the following manner. When a physical signal link switching-over request is given, establishment of a target physical signal link is required without releasing a layer 2 link, and a multi-reception of control signals using both of the target physical signal link and an original physical signal link is started. After confirming establishment of the target physical signal link, a physical signal link used for transmitting a control signal is switched to the target physical signal link and release of the original physical signal link is required. After confirming release of the original physical signal link, a physical signal link for receiving a control signal is switched to the target physical signal link.

    摘要翻译： 本发明减少了重新建立物理信号链路所需的开销操作。 在OSI参考模型中切换物理信号链路（第1层链路），保持层2链路。 数据库11存储指示物理信号链路的信息和指示根据物理信号链路的能力确定的第2层的最大长度的信息。 当要切换物理信号链路时，选择目标物理信号链路，并且将链路使用的物理信号链路切换到目标物理链路而不释放单层2链路。 从数据库11获得与目标物理信号链路对应的最大长度，发送具有最大长度的层2帧。 以下列方式执行切换物理信号链路。 当给出物理信号链路切换请求时，需要在不释放第2层链路的情况下建立目标物理信号链路，并且使用目标物理信号链路和原始物理信号链路两者的多接收控制信号 开始了 在确认目标物理信号链路的建立之后，将用于发送控制信号的物理信号链路切换到目标物理信号链路，并且需要原始物理信号链路的释放。 在确认原始物理信号链路的释放之后，将用于接收控制信号的物理信号链路切换到目标物理信号链路。