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公开(公告)号：US06574224B1
公开(公告)日：2003-06-03
申请号：US09346322
申请日：1999-07-02
IPC分类号： H04L1228
CPC分类号： H04L12/5601 , H04L69/22 , H04L2012/5618 , H04L2012/5619 , H04L2012/5653 , H04L2012/5665 , H04L2012/5672
摘要： An arrangement for interfacing between TDM and ATM networks consists of a family of devices that comprises two groups. The first group comprises devices that perform multiplexing, segregation and routing field translation for the respective traffic type. They may also remove or substitute an outermost layer of encapsulation. These first group devices are bi-directional and output buffered with respect to the network. The second device group comprises devices that perform format conversions between the service payload (voice, video or data) and an adaptation layer control format. These second group devices are also bi-directional and buffering depends on the particular function, e.g. real-time, segmentation.
摘要翻译： TDM和ATM网络之间的接口布置包括一组包含两组的设备。 第一组包括针对相应业务类型执行复用，分离和路由字段转换的设备。 它们也可以去除或替代最外层的封装。 这些第一组设备是双向的，并相对于网络输出缓冲。 第二设备组包括在服务有效载荷（语音，视频或数据）和适配层控制格式之间执行格式转换的设备。 这些第二组设备也是双向的，并且缓冲取决于特定功能，例如， 实时，细分。
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公开(公告)号：US06862295B1
公开(公告)日：2005-03-01
申请号：US09349346
申请日：1999-07-07
CPC分类号： H04L12/5601 , H04J3/0632 , H04L2012/5679
摘要： An interface arrangement provides interfacing between a frame based telecommunications network in which traffic is transported in frames and an asynchronous network in which traffic is transported in cells or packets. Each TDM frame supports a plurality of data structures each comprising one or more channels. Credits corresponding to bandwidth entitlement are issued at a substantially constant rate and are assigned to the data structures according to the size of those structures by a connection control. Each data structure is accorded a threshold number of assigned credits, and when this number has been reached, the data structure is assembled into cells or packets for dispatch into the asynchronous network.
摘要翻译： 接口布置提供了在帧中传输业务的基于帧的电信网络与以小区或分组传输业务的异步网络之间的接口。 每个TDM帧支持多个数据结构，每个数据结构包括一个或多个信道。 以带宽授权对应的信用以基本上恒定的速率发布，并且通过连接控制被分配给这些结构的尺寸的数据结构。 每个数据结构都被赋予了一个阈值数量的分配信用，当达到这个数字时，将数据结构组合成单元格或数据包，以便调度到异步网络中。
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公开(公告)号：US06714543B1
公开(公告)日：2004-03-30
申请号：US09284784
申请日：1999-10-25
IPC分类号： H04L1228
CPC分类号： H04Q11/0478 , H04L2012/5652 , H04L2012/5672
摘要： The invention relates to a method and apparatus for multiplexing traffic from a plurality of fixed bit rate sources over an ATM network. The traffic from the fixed bit rate users is multiplexed to form a TDM trunk group which is assembled into AAL2 minicells prior to being converted to ATM cells for transmission on the ATM network. By combining the fixed rate traffic sources into a TDM trunk group and then mapping the trunk group into AAL2 minicells, it is possible to improve efficiency of fixed bit rate traffic transmission using the ATM protocol.
摘要翻译： 本发明涉及一种用于通过ATM网络复用来自多个固定比特率源的业务的方法和装置。 来自固定比特率用户的业务被多路复用以形成TDM中继组，其在被转换成ATM信元以在ATM网络上传输之前被组装成AAL2小型细胞。 通过将固定速率业务源组合成TDM中继组，然后将中继组映射到AAL2小区，可以提高使用ATM协议的固定比特率业务传输的效率。
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公开(公告)号：US06590909B1
公开(公告)日：2003-07-08
申请号：US09341004
申请日：1999-09-03
IPC分类号： H04J302
CPC分类号： H04Q11/0478 , H04L2012/5616 , H04L2012/5656 , H04L2012/5671
摘要： There is disclosed a method and a system for multiplexing data from a plurality of user data sources across an ATM adaption layer type-2 connection, in which a multiplexed trunk group extends across a plurality of common part sub-layer protocol data unit (CSU-PDU) mini-cells, and across a plurality of ATM cells. Large trunk groups are assembled by use of a single bit continuation indicator in the service specific convergence sub-layer header (SSCS) of successive CPS-PDU mini-cells. A packet payload type field (PPT) of the common part sub-layer (CPS)/service specific convergence sub-layer (SSCS) is used to indicate timing of changes in number of user data sources in a trunk group and provides for robust error recovery on loss of a single CPS-PDU mini-cell.
摘要翻译： 公开了一种用于在跨越ATM适配层类型2连接的多个用户数据源中复用数据的方法和系统，其中多路复用中继线群跨越多个公共部分子层协议数据单元（CSU- PDU）小型小区，并且跨越多个ATM小区。 通过使用连续的CPS-PDU微型小区的服务特定的汇聚子层报头（SSCS）中的单个比特连续指示符来组装大型中继线组。 公共部分子层（CPS）/服务特定融合子层（SSCS）的分组有效载荷类型字段（PPT）用于指示中继线群组中用户数据源数量变化的定时，并提供鲁棒的错误 在单个CPS-PDU迷你电池丢失时恢复。
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公开(公告)号：US5923680A
公开(公告)日：1999-07-13
申请号：US869352
申请日：1997-06-05
CPC分类号： H04L1/0057 , H04L25/03866 , H04L2012/5673
摘要： Random bit errors in a digital transmission system in which data is scrambled and subsequently descrambled are detected by parsing the descrambled data into words, determining a syndrome error word for each data word, and determining a parity error word for each data word. A data word is left uncorrected when its corresponding syndrome error and parity error words are both zero. Single bit error correction of a data word is effected when its corresponding syndrome error and parity error words are both non-zero. Double or multiple bit error correction of a data word is effected when its corresponding parity error word is zero and its corresponding syndrome error word is non-zero.
摘要翻译： 通过将解扰数据解析为字来检测数据被加密并随后被解扰的数字传输系统中的随机位错误，确定每个数据字的校正子错误字，以及确定每个数据字的奇偶校验错误字。 当其对应的校正错误和奇偶校验错误字都为零时，数据字将保持未校正。 数据字的单位错误校正在其对应的校验错误和奇偶校验错误字都为非零时进行。 当数据字对应的奇偶校验错误字为零并且其相应的校验错误字不为零时，数据字的双位或多位纠错得以实现。
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6.再颁专利公开(公告)号：USRE40398E1
公开(公告)日：2008-06-24
申请号：US11055787
申请日：1997-07-03
CPC分类号： H04L12/5601 , H04J2203/0066 , H04J2203/0067 , H04L49/255 , H04L49/3081 , H04L2012/5619 , H04L2012/563 , H04L2012/5663 , H04Q11/0478
摘要： A telecommunications system comprises an asynchronous transfer mode (ATM) network having uncommitted bandwidth, and a plurality of adaptive grooming routers (AGR) coupled to the network. The AGRs comprise a group adapted to function as a virtual transit exchange whose fabric and control are distributed over the group. The virtual comprising the AGRs incorporates independent connection control and call routing functions and has means for determining the current system status whereby to set up narrow band connections across the ATM network based on that status determination.
摘要翻译： 电信系统包括具有未提交带宽的异步传输模式（ATM）网络和耦合到网络的多个自适应梳理路由器（AGR）。 AGR包括适用于虚拟中转交换机的组，其组合和控制分布在组中。 包括AGR的虚拟机包括独立的连接控制和呼叫路由功能，并且具有用于基于该状态确定来确定跨越ATM网络建立窄带连接的当前系统状态的装置。
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公开(公告)号：US06954461B1
公开(公告)日：2005-10-11
申请号：US09470629
申请日：1999-12-22
申请人： Andrew Geoffrey Tomlins , Simon Daniel Brueckheimer , David John Stacey , John A Shotton , Osama Bhagat , Greg Bernstein
发明人： Andrew Geoffrey Tomlins , Simon Daniel Brueckheimer , David John Stacey , John A Shotton , Osama Bhagat , Greg Bernstein
CPC分类号： H04L12/5601
摘要： A method of adapting synchronous time division multiplexed (TDM) traffic at an interface between a synchronous network in which the traffic is transported in frames identified by corresponding pointers and labels and an asynchronous network in which the adapted traffic is transported in cells, the method comprising mapping said synchronous frames into primary multiplexed groups, mapping each said primary multiplexed group into traffic cells in a respective asynchronous virtual channel, and providing that virtual circuit with a corresponding virtual channel indicator, and wherein said pointers and labels are mapped into one or more separate asynchronous cells for transport ahead or said traffic cells.
摘要翻译： 一种在同步网络之间的接口处适配同步时分多路复用（TDM）业务的方法，其中业务在由对应的指针和标签识别的帧中被传输，并且异步网络中适配的业务在小区中传输，所述方法包括： 将所述同步帧映射到主复用组中，将每个所述主复用组映射到相应异步虚拟信道中的业务信元中，以及向所述虚拟电路提供对应的虚拟信道指示符，并且其中所述指针和标签被映射到一个或多个单独的 用于传输提前的异步单元或所述流量单元。
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公开(公告)号：US06434154B1
公开(公告)日：2002-08-13
申请号：US09341036
申请日：1999-08-23
IPC分类号： H04Q1104
CPC分类号： H04Q11/0478 , H04L2012/5605 , H04L2012/5606 , H04L2012/561 , H04L2012/5656 , H04L2012/5675
摘要： Communicative services are transported over a TDMA or TDM access network by packetising the services into minicells which minicells are transported within minislots created by subdivision of the TDM time slots. For low bit rate communicative services only, mini-slots are allocated periodically rather than in the blocks that are allocated to high bit rate services. The packetisation delay inherent within the transport layer can be significantly reduced for these low bit rate services.
摘要翻译： 通过将服务分组到小型存储器中，通过TDMA或TDM接入网络传送通信服务，这些小型存储器在通过TDM时隙的细分创建的微时隙内传送小细孔。 对于低比特率的通信服务，小时隙被分配到周期性而不是分配给高比特率服务的块中。 对于这些低比特率服务，传输层内固有的分组化延迟可以显着降低。
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公开(公告)号：US06252876B1
公开(公告)日：2001-06-26
申请号：US08869898
申请日：1997-06-05
IPC分类号： H04L1228
CPC分类号： H04L49/3081 , G06F7/24 , H04L49/203 , H04Q11/0478
摘要： A data structure, such as a telecommunications connection map, comprises at least one list of data elements which are stored in a predetermined sequence of locations of a memory device. The structure is updated by moving a portion of the list through the sequence of memory locations so as to insert a new element into, or delete or change an existing element at, a particular position in the structure while maintaining the order of the list. Elements of the structure are accessed in the sequence in which they are stored and the structure is updated during the accessing of the structure by moving elements through the sequence of memory locations. A particular application of this invention is in maintaining a connection map for a telecommunications switch, the map storing connection instructions defining into which ATM cell payload received narrowband call data is assembled.
摘要翻译： 诸如电信连接图的数据结构包括存储在存储器件的预定位置序列中的数据元素的至少一个列表。 通过将列表的一部分移动通过存储器位置的顺序来更新结构，以便在保持列表的顺序的同时在结构中的特定位置插入新元素或将其删除或更改现有元素。 结构的元素按照它们被存储的顺序进行访问，并且在结构访问期间通过移动元素通过存储器位置序列来更新结构。 本发明的一个具体应用是维护一个电信交换机的连接图，该地图存储了连接哪个ATM信元有效载荷接收窄带呼叫数据的连接指令。
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10.发明授权公开(公告)号：US08547849B2
公开(公告)日：2013-10-01
申请号：US11759494
申请日：2007-06-07
IPC分类号： H04L12/26
CPC分类号： H04L47/10 , H04L12/5601 , H04L12/5602 , H04L45/10 , H04L45/245 , H04L45/38 , H04L47/11 , H04L47/122 , H04L2012/5636 , H04L2012/5651 , H04L2012/5679 , Y02D50/30
摘要： A telecommunications system comprises an asynchronous transfer mode (ATM) network having uncommitted bandwidth, and a plurality of adaptive grooming routers (AGR) coupled to the network. The AGRs comprise a group adapted to function as a virtual transit exchange whose fabric and control are distributed over the group. The visual comprising the AGRs incorporates independent connection control and call routing functions and has means for determining the current system status whereby to set up narrow band connections across the ATM network based on that status determination.
摘要翻译： 电信系统包括具有未提交带宽的异步传输模式（ATM）网络和耦合到网络的多个自适应梳理路由器（AGR）。 AGR包括适用于虚拟中转交换机的组，其组合和控制分布在组中。 包括AGR的可视化包括独立的连接控制和呼叫路由功能，并且具有用于基于该状态确定来确定跨越ATM网络建立窄带连接的当前系统状态的装置。
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