Hit-less protection switching method and apparatus for ATM transmission
lines
    1.
    发明授权
    Hit-less protection switching method and apparatus for ATM transmission lines 失效
    无线保护切换方法和ATM传输线路设备

    公开(公告)号:US5315581A

    公开(公告)日:1994-05-24

    申请号:US744717

    申请日:1991-08-14

    摘要: A hit-less protection switching method and apparatus therefor for ATM transmission lines for selecting first cells from normal received signals and writing the same into a normal cell buffer, selecting second cells from emergency received signals and writing the same into an emergency cell buffer, reading the first cells from the normal cell buffer after a first delay time, reading the second cells from the emergency cell buffer after a second delay time, comparing the contents of the first cell with the contents of the second cell and changing the difference between the first delay time and the second delay time, when a state of discrepancy between the contents of the first cell and the contents of the second cell is continuously detected for a predetermined time, to dissolve the state of discrepancy, and selecting one of the cells read from the normal cell buffer and the emergency cell buffer with a delay as communications information.

    摘要翻译: 一种无线保护切换方法及其装置,用于ATM传输线路,用于从正常接收信号中选择第一小区并将其写入正常小区缓冲器,从紧急接收信号中选择第二小区并将其写入紧急小区缓冲器,读取 在第一延迟时间之后,来自正常单元缓冲器的第一个单元,在第二延迟时间之后从紧急单元缓冲器读取第二单元,将第一单元的内容与第二单元的内容进行比较,并且改变第一单元 延迟时间和第二延迟时间,当在预定时间内连续检测到第一单元的内容与第二单元的内容之间的差异的状态以解决差异的状态时,并且从 正常小区缓冲区和具有延迟的紧急小区缓冲区作为通信信息。

    Communication network system and method of controlling a communication
network
    2.
    发明授权
    Communication network system and method of controlling a communication network 失效
    通信网络系统和控制通信网络的方法

    公开(公告)号:US5042027A

    公开(公告)日:1991-08-20

    申请号:US404535

    申请日:1989-09-08

    摘要: A communication network system includes a communication line, a plurality of communication stations each having a node coupled to the communication line and a network controller coupled to the stations for controlling routing for communication messages between nodes. In one embodiment, the messages are sent from plural terminals connected with each node along with communication performance prerequisites. The communication performance prerequisites for a communication message are discriminated in the node which receives the message. Traffic in various routes between the nodes is continually measured in the communication stations and the measuring results are stored in a database storage unit. Future traffic in the various routes is predicted on the basis of the information on the continually measured traffic by the use of a predetermined algorithm and stored in the storage unit for use in determination of routes for communication messages on the basis of the result of the communication performance prerequisites discrimination and predetermined criteria with respect to the updated information on the predicted traffic in the storage unit.

    摘要翻译: 通信网络系统包括通信线路,多个通信站,每个通信站具有耦合到通信线路的节点,以及耦合到该站点的网络控制器,用于控制节点之间的通信消息的路由。 在一个实施例中,从与每个节点连接的多个终端以及通信性能先决条件发送消息。 通信消息的通信性能先决条件在接收消息的节点中被区分。 在通信站中连续测量节点之间的各种路由的流量,并将测量结果存储在数据库存储单元中。 基于通过使用预定算法的连续测量的业务的信息来预测各种路线中的未来业务,并且存储在存储单元中以用于基于通信的结果确定通信消息的路由 性能先决条件判定和关于存储单元中预测业务量的更新信息的预定标准。

    Method of modifying virtual path capacity
    3.
    发明授权
    Method of modifying virtual path capacity 失效
    修改虚拟路径容量的方法

    公开(公告)号:US5271005A

    公开(公告)日:1993-12-14

    申请号:US744264

    申请日:1991-08-13

    摘要: A method of modifying a virtual path capacity in a communication network which transfers a first cell in an asynchronous transfer mode between node apparatuses. The first cell has a first virtual path identifier indicative of a virtual path which the first cell passes through. A bandwidth allocated to the virtual path is modified. Notification of the modification of the bandwidth is provided to a node apparatus included in the virtual path by passing a second cell through said virtual path. The second cell has information of the modification and a second virtual path identifier same as the first virtual path identifier. The second cell is received by the node apparatus and a third cell having information of confirmation of reception of the second cell is returned by the node apparatus.

    摘要翻译: 一种修改在节点设备之间以异步传输模式传送第一小区的通信网络中的虚拟路径容量的方法。 第一小区具有指示第一小区通过的虚拟路径的第一虚拟路径标识符。 分配给虚拟路径的带宽被修改。 通过使第二小区通过所述虚拟路径,将带宽修改的通知提供给虚拟路径中包含的节点装置。 第二小区具有与第一虚拟路径标识符相同的修改信息和第二虚拟路径标识符。 第二小区由节点装置接收,并且具有第二小区的接收确认信息的第三小区由节点装置返回。

    Method of modifying virtual path capacity
    4.
    发明授权
    Method of modifying virtual path capacity 失效
    修改虚拟路径容量的方法

    公开(公告)号:US5420859A

    公开(公告)日:1995-05-30

    申请号:US132918

    申请日:1993-10-07

    摘要: A method of modifying a virtual path capacity in a communication network which transfers a first cell in an asynchronous transfer mode between node apparatuses. The first cell has a first virtual path identifier indicative of a virtual path which the first cell passes through. A bandwidth allocated to the virtual path is modified. Notification of the modification of the bandwidth is provided to a node apparatus included in the virtual path by passing a second cell through said virtual path. The second cell has information of the modification and a second virtual path identifier same as the first virtual path identifier. The second cell is received by the node apparatus and a third cell having information of confirmation of reception of the second cell is returned by the node apparatus.

    摘要翻译: 一种修改在节点设备之间以异步传输模式传送第一小区的通信网络中的虚拟路径容量的方法。 第一小区具有指示第一小区通过的虚拟路径的第一虚拟路径标识符。 分配给虚拟路径的带宽被修改。 通过使第二小区通过所述虚拟路径,将带宽修改的通知提供给虚拟路径中包含的节点装置。 第二小区具有与第一虚拟路径标识符相同的修改信息和第二虚拟路径标识符。 第二小区由节点装置接收,并且具有第二小区的接收确认信息的第三小区由节点装置返回。

    Switch for self-healing ring
    8.
    发明授权
    Switch for self-healing ring 失效
    切换自愈环

    公开(公告)号:US5475676A

    公开(公告)日:1995-12-12

    申请号:US89948

    申请日:1993-07-12

    IPC分类号: H04J3/08 H04Q11/04

    CPC分类号: H04J3/085

    摘要: First stage and third stage four-input four-output space division switches are arranged before and after a second stage time division switch, and two outputs of the first stage space division switch and two inputs of the third stage space division switch are connected by bypassing the time division switch. The time division switch has n control memories. A first control memory stores connection information in a normal state of each path set in the transmission line, a second control memory stores connection information of a first alternative path when failures occur in a path, and an n-th control memory (n is any integer equal or greater than 3) stores connection information of an (n-1)th alternative path, and a control memory corresponding the a failure pattern is selected from the n control memories for each path.

    摘要翻译: 第一级和第三级四输入四输出空分开关布置在第二级分时开关之前和之后,第一级空分开关的两个输出和第三级空分开关的两个输入通过旁路连接 时分开关。 时分开关具有n个控制存储器。 第一控制存储器存储在传输线路中设置的每个路径的正常状态的连接信息,当路径中出现故障时,第二控制存储器存储第一替代路径的连接信息,并且第n控制存储器 整数等于或大于3)存储第(n-1)个替代路径的连接信息,并且从每个路径的n个控制存储器中选择与故障模式相对应的控制存储器。

    Routing method and apparatus for switching between routing and
conversion tables based on selection information included in cells to
be routed
    9.
    发明授权
    Routing method and apparatus for switching between routing and conversion tables based on selection information included in cells to be routed 失效
    基于包括在要路由的单元中的选择信息,在路由和转换表之间切换的路由方法和装置

    公开(公告)号:US5473598A

    公开(公告)日:1995-12-05

    申请号:US744513

    申请日:1991-08-13

    摘要: A cell routing method and apparatus in an ATM processing apparatus. The ATM processing apparatus has two or more routing tables associated with address filters of an ATM switch to store routing information for indicating the destination of cell output, and two or more conversion tables associated with VPI conversion circuits for replacing VPI (Virtual Path Identifier) or VCI conversion circuits for replacing VCI (Virtual Channel Identifier) to store information for indicating the VPI or VCI obtained after conversion. In an input interface circuit, selection information indicating which routing table and conversion table out of the above described two or more routing tables and two or more conversion tables should be selected is written into an occupied area within a cell. In a switch circuit, the selection information is read and one routing table is selected out of the above described two or more routing tables on the basis of the selection information thus read, and cell routing is thus performed based on information in the selected routing table. Further, in an output interface circuit, selection information contained in the cell is read and one conversion table is selected out of the above described two or more conversion tables on the basis of the selection information thus read, and VPI conversion or VCI conversion is thus executed based on information in the selected conversion table.

    摘要翻译: 一种ATM处理装置中的小区路由方法和装置。 ATM处理装置具有与ATM交换机的地址过滤器相关联的两个或多个路由表,以存储用于指示小区输出的目的地的路由信息​​,以及与用于替换VPI(虚拟路径标识符)的VPI转换电路相关联的两个或更多个转换表, 用于替换VCI(虚拟信道标识符)的VCI转换电路以存储用于指示转换后获得的VPI或VCI的信息。 在输入接口电路中,指示应当选择上述两个或多个路由表和两个或多个转换表中的哪个路由表和转换表的选择信息被写入小区内的占用区域。 在开关电路中,读取选择信息,并且根据这样读取的选择信息,从上述两个或多个路由表中选出一个路由表,并且基于所选择的路由表中的信息执行小区路由 。 此外,在输出接口电路中,读取包含在单元中的选择信息,并且根据这样读取的选择信息从上述两个或更多个转换表中选出一个转换表,并且因此进行VPI转换或VCI转换 基于所选转换表中的信息执行。

    Circuit switching method and apparatus for time division network with
various transmission speeds
    10.
    发明授权
    Circuit switching method and apparatus for time division network with various transmission speeds 失效
    具有各种传输速度的时分网络的电路交换方法和装置

    公开(公告)号:US5197063A

    公开(公告)日:1993-03-23

    申请号:US641928

    申请日:1991-01-16

    CPC分类号: H04Q11/04 H04J3/1611

    摘要: A circuit switching apparatus and method for time division network with various transmission speeds for time-division multiplexing a plurality of circuits including signals at different transmission speeds, transmitting the same onto an input highway, repeatedly recording the transmitted signals in a data memory in a predetermined order, reading respective recorded signals in a predetermined order onto an output highway. An access unit for reading signals from the data memory has an address control memory for storing circuit switching information, a circuit speed control memory for storing transmission speed information for the respective circuits and an address generating section for generating an address for accessing the data memory on the basis of the circuit switching information and the circuit transmission speed information from those memories.

    摘要翻译: 一种用于具有各种传输速度的时分网络的电路交换装置和方法,用于对包括不同传输速度的信号的多个电路进行时分复用,将其发送到输入公路上,以预定的方式将数据存储器重复地记录发送的信号 以预定顺序将各个记录信号读出到输出高速公路上。 用于从数据存储器读取信号的访问单元具有用于存储电路切换信息的地址控制存储器,用于存储各个电路的传输速度信息的电路速度控制存储器和用于生成访问数据存储器的地址的地址生成部分 电路切换信息的基础和来自这些存储器的电路传输速度信息。