Communication control system
    91.
    发明授权
    Communication control system 失效
    通讯控制系统

    公开(公告)号:US06947426B2

    公开(公告)日:2005-09-20

    申请号:US09938737

    申请日:2001-08-27

    摘要: The communication control system of the present invention includes a cell buffer assembly that is common to a plurality of input ports and stores cells. A writing controller and a reading controller respectively control a process of writing a cell into the cell buffer assembly and a process of reading a cell from the cell buffer assembly. A writing time management memory maps a writing time of each cell to each area in the cell buffer assembly and manages the mapping. A cell discard controller discards a cell having a long elapsed time since the writing time stored in the writing time management memory by the processing, which is independent of the processing by the writing controller and the reading controller. The arrangement of discarding the oldest cell independently of the writing and reading operations enables efficient discard of cells, while ensuring a desired communication rate. This arrangement simplifies the cell discard control and enhances its efficiency in the case of convergence in multiplex communication in the form of fixed-length cells.

    摘要翻译: 本发明的通信控制系统包括多个输入端口共用并存储单元的单元缓冲器组件。 写入控制器和读取控制器分别控制将单元写入单元缓冲器组件的过程和从单元缓冲器组件读取单元的过程。 写入时间管理存储器将每个单元的写入时间映射到单元缓冲器组件中的每个区域,并管理映射。 单元丢弃控制器通过与写入控制器和读取控制器的处理无关的处理,从存储在写入时间管理存储器中的写入时间起计算出具有漫长的经过时间的单元。 独立于写入和读取操作来丢弃最旧的信元的布置使得能够在确保期望的通信速率的同时有效地丢弃信元。 这种布置简化了单元丢弃控制,并且在固定长度单元形式的多路复用通信中收敛的情况下,提高了其效率。

    Method, apparatus and system for the synchronized combining of packet data
    94.
    发明申请
    Method, apparatus and system for the synchronized combining of packet data 有权
    分组数据同步组合的方法,装置和系统

    公开(公告)号:US20050201383A1

    公开(公告)日:2005-09-15

    申请号:US10797916

    申请日:2004-03-10

    CPC分类号: H04L49/90

    摘要: A method, apparatus and system for the synchronized combining of packet data in a network includes sorting data packets received during a predetermined time period into groups according to for which communications device of the network the received data packets are intended. The data packets in each of the groups intended for the respective communications devices are respectively time aligned and orthogonally combined. The respectively combined data packets intended for each of the specific communications devices are subsequently transmitted to the intended device using a single header and in a substantially compressed format.

    摘要翻译: 用于网络中的分组数据的同步组合的方法,装置和系统包括将在预定时间段期间接收到的数据分组分组为根据接收的数据分组所针对的网络的哪个通信设备。 针对各个通信设备的每个组中的数据分组分别是时间对准和正交组合。 用于每个特定通信设备的分别组合的数据分组随后使用单个报头并以基本压缩的格式发送到预期设备。

    Telecommunication switch and operating method
    95.
    发明申请
    Telecommunication switch and operating method 有权
    电信交换机和操作方法

    公开(公告)号:US20050201298A1

    公开(公告)日:2005-09-15

    申请号:US11059438

    申请日:2005-02-17

    IPC分类号: H04J3/14 H04L12/26 H04Q11/04

    摘要: This invention relates to a telecommunication switch (10) and an operating method for handling SDH signals transmitted by a protection SDH link associated to a working SDH link of a SDH hardware interface of the telecommunication switch. The telecommunication switch is comprising a plurality of SDH hardware interfaces (1,2,3,4), each comprising working link connecting means (11), being designed to be connected to a working SDH link (12) and protection link connecting means (13), being designed to be connected to a protection SDH link (14) associated to the working SDH link of the SDH hardware interface, wherein to each of said SDH hardware interfaces a SDH termination module (20) is connected, and—an equipment protection arrangement (30), comprising a protection switching hardware module (31) and a spare SDH termination module (32). Each of said SDH hardware interfaces (1,2,3,4) is connected to said equipment protection arrangement (30) by a first SDH connection (15) and a second SDH connection (16), and the protection SDH link (14) of a first SDH hardware interface (1) of said SDH hardware interfaces (1,2,3,4) is connected to a second SDH hardware interface (2) of said SDH hardware interfaces (1,2,3,4). The second SDH hardware interface (2) is being designed to forward protection SDH signals transmitted by said protection SDH link (14) of said first SDH hardware interface (1) to said equipment protection arrangement (30) using its first SDH connection (15) and said equipment protection arrangement (30) is being designed to switch said protection SDH signals to said spare SDH termination module (32) or the SDH termination module (20) being connected to said first SDH hardware interface (1) according to a protection switching control signal.

    摘要翻译: 本发明涉及电信交换机(10)和用于处理由与电信交换机的SDH硬件接口的工作SDH链路相关联的保护SDH链路发送的SDH信号的操作方法。 电信交换机包括多个SDH硬件接口(1,2,3,4),每个SDH硬件接口(1,2,3,4)包括工作链路连接装置(11),被设计为连接到工作SDH链路(12)和保护链路连接装置 被设计为连接到与SDH硬件接口的工作SDH链路相关联的保护SDH链路(14),其中SDH终端模块(20)连接到所述SDH硬件接口中的每一个,以及 - 设备 保护装置(30),包括保护切换硬件模块(31)和备用SDH终端模块(32)。 所述SDH硬件接口(1,2,3,4)中的每一个通过第一SDH连接(15)和第二SDH连接(16)连接到所述设备保护装置(30),并且所述保护SDH链路(14) 所述SDH硬件接口(1,2,3,4)的第一SDH硬件接口(1)被连接到所述SDH硬件接口(1,2,3,4)的第二SDH硬件接口(2)。 第二SDH硬件接口(2)被设计成使用其第一SDH连接(15)将由所述第一SDH硬件接口(1)的所述保护SDH链路(14)发送的保护SDH信号转发到所述设备保护装置(30) 并且所述设备保护装置(30)被设计为根据保护切换将所述保护SDH信号切换到与所述第一SDH硬件接口(1)连接的所述备用SDH终端模块(32)或SDH终端模块(20) 控制信号。

    Management of protocol information in PNNI hierarchical networks
    96.
    发明授权
    Management of protocol information in PNNI hierarchical networks 失效
    PNNI分层网络中协议信息的管理

    公开(公告)号:US06944674B2

    公开(公告)日:2005-09-13

    申请号:US09877483

    申请日:2001-06-08

    摘要: Methods and apparatus are provided for managing protocol information in a PNNI hierarchical network. In a PAR-enabled device (1) of the network PAR PTSEs received by the PAR-enabled device (1) from the network are checked to identify redundant protocol information encapsulated in the PAR PTSEs. Protocol information in received PAR PTSEs is then supplied to a protocol device associated with the PAR-enabled device (1). In some embodiments, protocol information identified as redundant is excluded from the protocol information supplied to the protocol device. In other embodiments, the protocol information supplied to the protocol device is tagged to distinguish redundant protocol information from non-redundant protocol information. This facilitates efficient configuration of the network topology for the protocol in question.

    摘要翻译: 提供了用于管理PNNI分层网络中的协议信息的方法和装置。 在由PAR启用设备(1)从网络接收的网络PAR PTSE的PAR启用设备(1)中被检查以识别封装在PAR PTSE中的冗余协议信息。 然后将接收的PAR PTSE中的协议信息提供给与启用PAR的设备相关联的协议设备(1)。 在一些实施例中,被标识为冗余的协议信息从提供给协议设备的协议信息中排除。 在其他实施例中,提供给协议设备的协议信息被标记以将冗余协议信息与非冗余协议信息区分开。 这有助于有关所讨论的协议的网络拓扑的有效配置。

    Bit-rate-independent optical cross-connect device in optical transmission system
    97.
    发明授权
    Bit-rate-independent optical cross-connect device in optical transmission system 失效
    光传输系统中的比特率独立光交叉设备

    公开(公告)号:US06944405B2

    公开(公告)日:2005-09-13

    申请号:US09953637

    申请日:2001-09-17

    摘要: This invention provides an optical transmission with a demultiplexer for demultiplexing an input optical signal into optical signals of different channels and a multiplexer for multiplexing the optical signals outputted from the demultiplexer. The optical cross-connect device includes: N BICDR (Bit Rate Independent Clock and Data Recovery) receivers each for receiving the associated optical signals outputted from the demultiplexer, for converting the associated optical signal into an electrical signal and reproducing clocks and data based on the bit rate of the electrical signal; a switchboard with a cross-connect switch for receiving output signals from the respective N BICDR receiver; N bit rate discriminating units for receiving the output signals from the N BICDR receivers, respectively, thereby outputting bit rate discriminating signals associated with the N BICDR receivers, respectively; a temperature sensing unit for outputting a temperature sensing signal; and, a central processing unit for receiving the bit rate discriminating signals from the N bit rate discriminating unit, along with the temperature sensing signal from the temperature sensing unit, for compensating each of the received bit rate discriminating signals with a temperature-dependent bit rate value read out, based on the temperature sensing signal, from a memory, and for controlling the bit rate of the associated BICDR receiver based on the compensated bit rate.

    摘要翻译: 本发明提供了一种具有解复用器的光传输器,用于将输入光信号解复用为不同信道的光信号,以及复用器,用于复用从解复用器输出的光信号。 光交叉设备包括:N个BICDR(比特率独立时钟和数据恢复)接收机,每个接收器用于接收从解复用器输出的相关联的光信号,用于将相关联的光信号转换成电信号,并基于该信号再现时钟和数据 比特率的电信号; 具有交叉连接开关的交换机,用于接收来自相应N BICDR接收机的输出信号; N比特率鉴别单元,用于分别从N个BICDR接收机接收输出信号,从而分别输出与N个BICDR接收机相关联的比特率鉴别信号; 用于输出温度感测信号的温度检测单元; 以及用于从温度感测单元接收来自N比特率鉴别单元的比特率鉴别信号的中央处理单元,用于以温度依赖比特率对每个接收的比特率鉴别信号进行补偿 基于温度感测信号从存储器读出,并且用于基于补偿的比特率来控制相关联的BICDR接收器的比特率。

    10 Gigabit ethernet mappings for a common LAN/WAN PMD interface with a simple universal physical medium dependent interface
    98.
    发明授权
    10 Gigabit ethernet mappings for a common LAN/WAN PMD interface with a simple universal physical medium dependent interface 有权
    用于通用LAN / WAN PMD接口的10千兆以太网映射,具有简单的通用物理介质依赖接口

    公开(公告)号:US06944163B2

    公开(公告)日:2005-09-13

    申请号:US09739385

    申请日:2000-12-19

    摘要: An Ethernet mapping enables high speed Ethernet data streams having a data rate of 10 Gb/s to be transported across a synchronous packet switched network fabric having a standard SONET OC-192 line rate of 9.953280 Gbaud. The 10 Gb/s Ethernet data stream is compressed by removing interframe gaps between successive MAC frames to produce a compressed data stream, which is then mapped to a synchronous container. The synchronous container is then launched across the synchronous packet switched network fabric at a standard SONET OC-192 line rate of 9.953280 Gbaud. The synchronous container is preferably provided as a stripped STS-192c frame having only A1 and A2 octets of the Transport Overhead (TOH). The compressed data stream is mapped directly to the synchronous container, starting at the first octet following the A1 and A2 octets, without first being inserted into a conventional STS-192c SPE, so that most of the space normally used for TOH and Path overhead (POH) within a conventional STS-192c frame is freed-up for carrying the compressed data stream. At a receiving interface, the compressed data stream is extracted from received synchronous containers and decompressed, by insertion of interframe gaps between successive MAC frames, to generate a recovered 10 Gb/s Ethernet data stream. The starting bit of each successive MAC frame can be identified by examination of the length field of the immediately previous MAC frame.

    摘要翻译: 以太网映射使具有10Gb / s数据速率的高速以太网数据流可以跨标准SONET OC-192线路速率为9.953280Gbaud的同步分组交换网络结构传输。 通过消除连续MAC帧之间的帧间间隔来压缩10Gb / s以太网数据流,以产生压缩数据流,然后映射到同步容器。 然后以9.953280Gbaud的标准SONET OC-192线路速率在同步分组交换网络结构上启动同步容器。 同步容器优选地设置为仅具有运输开销(TOH)的A1和A2八位字节的剥离的STS-192c框架。 压缩数据流直接映射到同步容器,从A1和A2八位字节之后的第一个八位字节开始,而不先插入到常规STS-192c SPE中,以便通常用于TOH和Path开销的大部分空间 传统的STS-192c帧中的POH被释放以携带压缩数据流。 在接收接口,从接收到的同步容器中提取压缩数据流,并通过插入连续MAC帧之间的帧间间隙来解压缩,以产生恢复的10Gb / s以太网数据流。 可以通过检查紧接在前的MAC帧的长度字段来识别每个连续的MAC帧的起始位。

    Bypass control system based upon NMS control in ATM exchanger
    99.
    发明授权
    Bypass control system based upon NMS control in ATM exchanger 失效
    基于ATM交换机中的NMS控制的旁路控制系统

    公开(公告)号:US06944124B2

    公开(公告)日:2005-09-13

    申请号:US09789742

    申请日:2001-02-22

    申请人: Hidetaka Ito

    发明人: Hidetaka Ito

    摘要: When a malfunction of a master connection 100 is detected by an ATM exchanger, etc., a notice thereof is transmitted to an NMS 40. The NMS 40 is at all times kept monitoring the state within the network. When receiving the notice of the malfunction from the ATM exchanger, the NMS 40 operates on respective cell header translators (HT) 1B, 1C, 3B, and 3C that are associated with the master connection 100 that has malfunctioned. And, the NMS 40 changes the set values of the cell header translators according to the notice of the malfunction. As a result, the ATM cell is bypassed to a bypass connection 200.

    摘要翻译: 当ATM交换机等检测到主连接100的故障时,其通知被发送到NMS40。 NMS 40始终监控网络中的状态。 当从ATM交换机接收到故障通知时,NMS40对与已经发生故障的主连接100相关联的各个信元头转换器(HT)1B,1C,3B和3C进行操作。 而且,NMS40根据故障通知改变单元头翻译器的设定值。 结果,ATM信元被旁路到旁路连接200。

    Protection switching of virtual connections at the data link layer
    100.
    发明授权
    Protection switching of virtual connections at the data link layer 有权
    保护数据链路层虚拟连接的切换

    公开(公告)号:US06940810B1

    公开(公告)日:2005-09-06

    申请号:US09696462

    申请日:2000-10-25

    IPC分类号: H04L12/56 H04Q11/04 H04L1/00

    摘要: A ring network is provided. The ring network includes a number of network elements, each including first and second switch fabrics. At least two uni-directional busses are coupled between the first and second switch fabrics. A number of ring segments are coupled between adjacent network elements to form first and second routes for transporting cells using virtual connections wherein, for each virtual connection, one route is the working route and the other route is the protection route. The first and second switch fabrics of each network element are associated with one of the first and second routes. The first and second switch fabrics of each network element separately track the status of a number of virtual connections such that when an error is detected by one of the switch fabrics associated with a working route for a virtual connection, the switch fabric detecting the error communicates the change in state for the virtual connection to the other switch fabric over one of the first and second uni-directional busses to be used in a switching decision.

    摘要翻译: 提供环网。 环形网络包括多个网络元件,每个网络元件包括第一和第二交换结构。 至少两个单向总线耦合在第一和第二交换结构之间。 多个环段耦合在相邻的网络元件之间以形成用于使用虚拟连接传送单元的第一和第二路由,其中​​对于每个虚拟连接,一个路由是工作路由,而另一个路由是保护路由。 每个网络元件的第一和第二交换结构与第一和第二路由之一相关联。 每个网络单元的第一和第二交换结构分别跟踪多个虚拟连接的状态,使得当与用于虚拟连接的工作路由相关联的交换结构之一检测到错误时,检测错误的交换结构通信 用于在切换决定中使用的第一和第二单向总线之一上的虚拟连接到另一交换机结构的状态改变。