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    SYSTEM AND METHOD FOR SHORT-CELL MULTIPLEX ATM TRANSMISSION
    52.
    发明公开
    SYSTEM AND METHOD FOR SHORT-CELL MULTIPLEX ATM TRANSMISSION 失效
    系统和方法短信元MULTIPLEX ATM传输

    公开(公告)号：EP0827305A4

    公开(公告)日：2001-01-31

    申请号：EP96933623

    申请日：1996-10-11

    申请人： NIPPON TELEGRAPH & TELEPHONE

    发明人： TAMURA MOTOSHI ,  OKAGAWA TAKATOSHI ,  NAKAMURA HIROSHI ,  KAIYAMA AKIRA ,  ONUKI MASAFUMI ,  NAKAJIMA AKIHISA

    IPC分类号： H04L12/951 ,  H04Q11/04 ,  H04L12/28

    CPC分类号： H04L12/5601 ,  H04L2012/5649 ,  H04L2012/5652 ,  H04L2012/5656 ,  H04L2012/5672

    摘要： Short-cell multiplex for transmitting short data (basically, data of 48 bytes, but data of 48 bytes are also transmittable) generally shorter than the payload of a standard ATM cell through an ATM network. A standard ATM cell generating device (1) converts various forms of input information into short cells, efficiently transfers the short cells to a standard ATM cell in view of the length of the information into consideration, and outputs the standard ATM cell to a B-ISDN network (7). A standard ATM cell disintegrating device (2) disintegrates the standard ATM cell generated by the device (1) and inputted through the network (7) into short cells, converts the short cells into the original various forms of input information, and outputs the information through transmission lines. The short-cell ATM multiplex causes less delay, enhances the efficiency of transmission lines, and has a high compatibility with the standard ATM system.

    DIGITAL COMMUNICATIONS SYSTEM
    53.
    发明授权
    DIGITAL COMMUNICATIONS SYSTEM 失效
    数字通信系统

    公开(公告)号：EP0815702B1

    公开(公告)日：2001-01-17

    申请号：EP96907603.3

    申请日：1996-03-21

    申请人： Nortel Networks Limited

    发明人： MAUGER, Roy, Harold

    IPC分类号： H04Q11/04 ,  H04L12/56

    CPC分类号： H04L49/253 ,  H04L49/205 ,  H04L49/255 ,  H04L49/3081 ,  H04L49/505 ,  H04L2012/5619 ,  H04L2012/5626 ,  H04L2012/563 ,  H04L2012/5672 ,  H04Q11/0478

    摘要： In an ATM network a flexible AAL1 processor is connected to a similar AAL1 processor by a virtual circuit. This virtual circuit has nx64kb/s capacity wherein each 64kb/s channel or a Px64kb/s subset of the capacity can be used for a separate call. The virtual circuit behaves similarly to trunk groups within present day digital networks and it is therefore termed a Virtual Trunk Group. Many Virtual Trunk Groups can be connected between the same two endpoints and contained within a virtual path thus forming a Virtual Route. The network is provided with a mechanism which allows the nx64kb/s capacity to be changed by a managed process which ensures that established calls are not affected by the change of capacity. This change of capacity is performed in such a way that the clock systems of the two AAL1 processors are able to behave in the normal manner for synchronised or plesiochronous switching networks without incurring additional frame slips in the AAL1 data stream. Frame slips due to the behaviour of the clock systems are still processed in the normal manner.

    A method for generating ATM cells for low bit rate applications
    54.
    发明公开
    A method for generating ATM cells for low bit rate applications 有权
    一种为低比特率应用生成ATM信元的方法

    公开(公告)号：EP1065908A1

    公开(公告)日：2001-01-03

    申请号：EP99401630.1

    申请日：1999-06-30

    申请人： ALCATEL

    发明人： Besset-Bathias, Claire

    IPC分类号： H04Q11/04

    CPC分类号： H04Q11/0478 ,  H04L2012/5656 ,  H04L2012/5672 ,  H04L2012/5679

    摘要： A method for generating ATM cells for low bit rate applications, said method including :

    a segmentation and packetization step (1), for converting a plurality of incoming data unit streams into a plurality of incoming short packet streams, said step including a segmentation of long data units prior to the - packetization of data units into short packets,
    a multiplexing and scheduling step (3, SCH, GLL), for multiplexing said plurality of incoming short packet streams into a single outgoing short packet stream to be packed into a same ATM connection, and for scheduling the different incoming short packet streams into said single outgoing short packet stream, in a way that short packets corresponding to long data units of different incoming data unit streams can be interleaved in said single outgoing short packet stream.

    摘要翻译： 一种用于为低比特率应用产生ATM信元的方法，所述方法包括：分段和打包步骤（1），用于将多个输入数据单元流转换成多个输入短分组流，所述步骤包括长分段 在将数据单元打包成短分组之前将数据单元，多路复用和调度步骤（3，SCH，GLL），用于将所述多个输入短分组流多路复用成单个输出短分组流，以打包成相同的ATM 连接，并且用于以不同的输入数据单元流的长数据单元对应的短分组在所述单个输出短分组流中交错的方式将不同的输入短分组流安排到所述单个输出短分组流中。

    XDSL-BASED INTERNET ACCESS ROUTER
    55.
    发明公开
    XDSL-BASED INTERNET ACCESS ROUTER 审中-公开
    XDSL基于互联网的接入路由器

    公开(公告)号：EP1049980A1

    公开(公告)日：2000-11-08

    申请号：EP98960666.0

    申请日：1998-12-03

    申请人： Telcordia Technologies, Inc.

    发明人： GELMAN, Alexander ,  KHANDELWAL, Rajesh, B.

    IPC分类号： G06F13/00

    CPC分类号： H04Q11/0478 ,  H04L12/2856 ,  H04L12/2883 ,  H04L12/2889 ,  H04L2012/561 ,  H04L2012/5615 ,  H04L2012/5618 ,  H04L2012/562 ,  H04L2012/5665 ,  H04L2012/5667 ,  H04L2012/5672 ,  H04M11/062

    摘要： An Internet Protocol based system (100) and method facilitate communication and improve the network performance between remote user terminals (15) and Web servers (28), that are configured by a communication network, including an asynchronous transfer mode (ATM) network (22). The system includes Local Area Networks (LANs) (12), each comprising a plurality of user terminals (15). The system further comprises at least one network switch (22), and at least one digital subscriber line (xDSL) multiplexor and access router (120), each connected between a corresponding LAN and the network switch. Thus, each user communicates directly with its default router obviating the requirement of communicating via the network switch to the default IP edge routers (126). Further, where Quality of Service is required, the xDSL access router serves as the default router for the Web server. XDSL access router helps to reduce the processing load on the Internet edge routers.

    VORRICHTUNG ZUM SENDEN UND/ODER EMPFANGEN VON DATEN IN EINEM SDH- BZW. PDH-ÜBERTRAGUNGSSYSTEM
    56.
    发明公开
    VORRICHTUNG ZUM SENDEN UND/ODER EMPFANGEN VON DATEN IN EINEM SDH- BZW. PDH-ÜBERTRAGUNGSSYSTEM 有权
    设备，用于一个SDH发送和/或接收数据或 PDH传输系统

    公开(公告)号：EP1040711A1

    公开(公告)日：2000-10-04

    申请号：EP98963375.5

    申请日：1998-11-23

    申请人： SIEMENS AKTIENGESELLSCHAFT

    发明人： SINGER, Josef

    IPC分类号： H04Q11/04 ,  H04J3/16

    CPC分类号： H04J3/1617 ,  H04J2203/0089 ,  H04L2012/5656 ,  H04L2012/5672 ,  H04Q11/0478

    摘要： Disclosed is a device for transmitting data in an SDH or a PDH transmission system, comprising a device (2) for arranging data coming in through several data channels in flexible length minicells (7) and a device (3) for generating a single data on the basis of said the minicells (7). The inventive device is characterized by a device (6) that directly generates transmission for the SDH or the PDH transmission system on the basis of the data flow. The invention also includes a method for sending data in an SDH or a PDH transmission system, comprising the following steps: arranging the data coming in through several data channels in flexible length minicells; generating a single data flow on the basis of the minicells and directly generating transmission frames for the SDH or PDH transmission system on the basis of the data flow. The present invention further comprises a corresponding device and a corresponding method for receiving such data in an SDH or PDH transmission system. The invention enables the use of existing and pending AAL2 standards by avoiding transmission band width losses associated with the use of ATM cells.

    METHOD AND APPARATUS COMPRISING SYNCHRONIZING MEANS FOR PACKETISING AT LEAST TWO DATA STREAMS
    58.
    发明公开
    METHOD AND APPARATUS COMPRISING SYNCHRONIZING MEANS FOR PACKETISING AT LEAST TWO DATA STREAMS 有权
    过程，装置和系统，用于打包的至少两个数据流

    公开(公告)号：EP1013134A2

    公开(公告)日：2000-06-28

    申请号：EP98943160.6

    申请日：1998-09-08

    申请人： TELEFONAKTIEBOLAGET LM ERICSSON

    发明人： HÖLLER, Jan

    IPC分类号： H04Q11/04 ,  H04L12/56

    CPC分类号： H04Q11/0478 ,  H04L2012/5656 ,  H04L2012/5671 ,  H04L2012/5672

    摘要： There are voice signals from at least two voice sources which are multiplexed by an ATM Adaptation Layer 2 multiplexer (AAL2 MUX) into the same ATM connection after having been processed by a packetizing means such that the AAL2 MUX is presented with assembled AAL2 packets of a suitable periodicity. If the voice data signals are to be compressed, the packetizing means comprises an encoder of a suitable voice codec, e.g. ADPCM, GSM, LD-CELP or CS-ACELP. The voice encoders may also include means for silence removal. The packetizing means further comprises a packetizer, either separated from the voice encoder, or as a part thereof. The packet releases from the packetizing means are synchronized to occur virtually simultaneously. In this way, the released packets from the packetizing means arrive almost simultaneously at the AAL2 MUX, with the result that an ATM cell may be filled with AAL2 packets well before the expiration of the timer Timer-CU of the AAL2 MUX.

    SYSTEME ET PROCEDE DE COMMUTATION ASYNCHRONE DE CELLULES COMPOSITES, ET MODULES DE PORT D'ENTREE ET DE PORT DE SORTIE CORRESPONDANTS
    60.
    发明公开
    SYSTEME ET PROCEDE DE COMMUTATION ASYNCHRONE DE CELLULES COMPOSITES, ET MODULES DE PORT D'ENTREE ET DE PORT DE SORTIE CORRESPONDANTS 审中-公开
    系统和方法异步调解化合物的细胞，以及输入和输出端上体育

    公开(公告)号：EP0993723A2

    公开(公告)日：2000-04-19

    申请号：EP99901625.6

    申请日：1999-01-25

    申请人： ALCATEL

    发明人： HENRION, Michel

    IPC分类号： H04L12/56

    CPC分类号： H04L49/3009 ,  H04L49/25 ,  H04L49/30 ,  H04L49/3081 ,  H04L2012/5649 ,  H04L2012/566 ,  H04L2012/5672

    摘要： The invention concerns an asynchronous cell switching system comprising each a header field and a data field. At least some of the input modules comprise means for forming composite cells, for constructing channel data blocks, each comprising a channel data to be transmitted retrieved from the received channel data and at least an synchronous channel identity associated with said channel data to be transmitted, and means for selective multiplexing of channel data blocks intended for a common destination, in the data field of at least one composite cell. At least some of said output modules comprise means for processing said composite cells, including means for retrieving and identifying said received channel data blocks, using said associated synchronous channel identity means and means for transmitting to at least an output connection channel data pertaining to the different channels.