公开(公告)号：US5452297A

公开(公告)日：1995-09-19

申请号：US169909

申请日：1993-12-20

申请人： Thomas L. Hiller ,  Ronald A. Spanke ,  John J. Stanaway, Jr. ,  Alex L. Wierzbicki ,  Meyer J. Zola

发明人： Thomas L. Hiller ,  Ronald A. Spanke ,  John J. Stanaway, Jr. ,  Alex L. Wierzbicki ,  Meyer J. Zola

IPC分类号： H04L12/56 ,  H04L12/64 ,  H04Q11/04

CPC分类号： H04L49/1576 ,  H04L12/64 ,  H04L12/6418 ,  H04Q11/0478 ,  H04J2203/0012 ,  H04J2203/0066 ,  H04L2012/5619 ,  H04L2012/563 ,  H04L2012/5652 ,  H04L2012/5671 ,  H04L2012/6459 ,  H04L2012/6481

摘要： Pulse Code Modulation (PCM) signal streams are converted into Asynchronous Transfer Mode (ATM) cells for switching and transmission across a telecommunications network. Each cell carries one PCM sample of up to 48 different voice connections, the voice connections being selected from the PCM data streams because they have a common destination. The cells are transmitted over ATM virtual paths, each path transmitting one cell every 125 .mu.s. The ATM signals are switched by units for switching cells (cell switching), while keeping their payload contents intact, and by units for switching the signals for individual voice connections between cells of an ATM signal (cell remapping). Advantageously, ATM transmission systems interface with PCM systems without adding appreciable delay and without requiring additional buffering. Advantageously, new voice paths can be established most of the time by using available slots in the cells of existing virtual paths. Advantageously, large telecommunication networks can be implemented using a small number of switching units.Advantageously, an access switch comprising a cell mapping or distribution stage for assembling cells comprising PCM samples headed for a common output of the access switch are switched in a cell switch to a cell remap unit for collecting PCM samples headed for a common destination into individual cells of an ATM output stream, provides output signals that can be readily and efficiently switched by a transit network for distribution to other access switches of a large network.

摘要翻译： 脉冲编码调制（PCM）信号流被转换为异步传输模式（ATM）单元，用于通过电信网络的交换和传输。 每个小区携带多达48个不同语音连接的PCM样本，因为它们具有共同的目的地，所以从PCM数据流中选择语音连接。 这些小区通过ATM虚拟路径传输，每个路径每125个发送一个小区。 ATM信号由开关单元（单元切换）的单元切换，同时保持它们的有效载荷内容不变，以及用于切换ATM信号（单元重映射）的单元之间的各个语音连接的信号的单位。 有利地，ATM传输系统与PCM系统接口，而不增加明显的延迟并且不需要额外的缓冲。 有利的是，通过使用现有虚拟路径的小区中的可用时隙，大多数时间可以建立新的语音路径。 有利地，可以使用少量的交换单元来实现大型电信网络。 有利地，包括用于组装小区映射或分配阶段的接入交换机，其包括以用于接入交换机的公共输出端口的PCM采样的小区切换到小区重新映射单元，用于收集朝向共同目的地的PCM样本到单个小区 提供ATM输出流的输出信号，其可以由转接网络容易地和有效地切换以分发给大型网络的其他接入交换机。

公开(公告)号：US5426636A

公开(公告)日：1995-06-20

申请号：US169913

申请日：1993-12-20

申请人： Thomas L. Hiller ,  Ronald A. Spanke ,  John J. Stanaway, Jr. ,  Alex L. Wierzbicki ,  Meyer J. Zola

发明人： Thomas L. Hiller ,  Ronald A. Spanke ,  John J. Stanaway, Jr. ,  Alex L. Wierzbicki ,  Meyer J. Zola

IPC分类号： H04L12/56 ,  H04L12/64 ,  H04Q11/04 ,  H04L12/66

CPC分类号： H04L49/1576 ,  H04L12/64 ,  H04L12/6418 ,  H04Q11/0478 ,  H04J2203/0012 ,  H04J2203/0066 ,  H04L2012/5619 ,  H04L2012/563 ,  H04L2012/5652 ,  H04L2012/5671 ,  H04L2012/6459 ,  H04L2012/6481

摘要： Pulse Code Modulation (PCM) signal streams are converted into Asynchronous Transfer Mode (ATM) cells for switching and transmission across a telecommunications network. Each cell carries one PCM sample of up to 48 different voice connections, the voice connections being selected from the PCM data streams because they have a common destination. The cells are transmitted over ATM virtual paths, each path transmitting one cell every 125 .mu.s. The ATM signals are switched by units for switching cells (cell switching), while keeping their payload contents intact, and by units for switching the signals for individual voice connections between cells of an ATM signal (cell remapping). Advantageously, ATM transmission systems interface with PCM systems without adding appreciable delay and without requiring additional buffering. Advantageously, new voice paths can be established most of the time by using available slots in the cells of existing virtual paths. Advantageously, large telecommunication networks can be implemented using a small number of switching units.Advantageously, a central communications network comprising stages of cell remapping interconnected by one or more stages of cell switching provides flexibility for interconnecting large access switches; the cell remapping stage may be made part of the access switch.

摘要翻译： 脉冲编码调制（PCM）信号流被转换为异步传输模式（ATM）单元，用于通过电信网络的交换和传输。 每个小区携带多达48个不同语音连接的PCM样本，因为它们具有共同的目的地，所以从PCM数据流中选择语音连接。 这些小区通过ATM虚拟路径传输，每个路径每125个发送一个小区。 ATM信号由开关单元（单元切换）的单元切换，同时保持它们的有效载荷内容不变，以及用于切换ATM信号（单元重映射）的单元之间的各个语音连接的信号的单位。 有利地，ATM传输系统与PCM系统接口，而不增加明显的延迟并且不需要额外的缓冲。 有利地，通过使用现有虚拟路径的小区中的可用时隙，大多数时间可以建立新的语音路径。 有利地，可以使用少量的交换单元来实现大型电信网络。 有利地，包括通过小区切换的一个或多个阶段互连的小区重映射阶段的中央通信网络提供了用于互连大接入交换机的灵活性; 小区重映射阶段可以被制成接入交换机的一部分。

公开(公告)号：US5390175A

公开(公告)日：1995-02-14

申请号：US170550

申请日：1993-12-20

申请人： Thomas L. Hiller ,  Ronald A. Spanke ,  John J. Stanaway, Jr. ,  Alex L. Wierzbicki ,  Meyer J. Zola

发明人： Thomas L. Hiller ,  Ronald A. Spanke ,  John J. Stanaway, Jr. ,  Alex L. Wierzbicki ,  Meyer J. Zola

IPC分类号： H04L12/56 ,  H04L12/64 ,  H04Q11/04 ,  H04J3/26

CPC分类号： H04L49/1576 ,  H04L12/64 ,  H04L12/6418 ,  H04Q11/0478 ,  H04J2203/0012 ,  H04J2203/0066 ,  H04L2012/5619 ,  H04L2012/563 ,  H04L2012/5652 ,  H04L2012/5671 ,  H04L2012/6459 ,  H04L2012/6481

摘要： Pulse Code Modulation (PCM) signal streams are converted into Asynchronous Transfer Mode (ATM) cells for switching and transmission across a telecommunications network. Each cell carries one PCM sample of up to 48 different voice connections, the voice connections being selected from the PCM data streams because they have a common destination. The cells are transmitted over ATM virtual paths, each path transmitting one cell every 125 .mu.s. The ATM signals are switched by units for switching cells (cell switching), while keeping their payload contents intact, and by units for switching the signals for individual voice connections between cells of an ATM signal (cell remapping). Advantageously, ATM transmission systems interface with PCM systems without adding appreciable delay and without requiring additional buffering. Advantageously, new voice paths can be established most of the time by using available slots in the cells of existing virtual paths. Advantageously, large telecommunication networks can be implemented using a small number of switching units.Advantageously, such a cell remap unit provides a key element to the implementation of an efficient large ATM voice network.

摘要翻译： 脉冲编码调制（PCM）信号流被转换为异步传输模式（ATM）单元，用于通过电信网络的交换和传输。 每个小区携带多达48个不同语音连接的PCM样本，因为它们具有共同的目的地，所以从PCM数据流中选择语音连接。 这些小区通过ATM虚拟路径传输，每个路径每125个发送一个小区。 ATM信号由开关单元（单元切换）的单元切换，同时保持它们的有效载荷内容不变，以及用于切换ATM信号（单元重映射）的单元之间的各个语音连接的信号的单位。 有利地，ATM传输系统与PCM系统接口，而不增加明显的延迟并且不需要额外的缓冲。 有利地，通过使用现有虚拟路径的小区中的可用时隙，大多数时间可以建立新的语音路径。 有利地，可以使用少量的交换单元来实现大型电信网络。 有利地，这样的小区重映射单元为实现有效的大型ATM语音网络提供了关键要素。

公开(公告)号：US5428607A

公开(公告)日：1995-06-27

申请号：US169915

申请日：1993-12-20

申请人： Thomas L. Hiller ,  Ronald A. Spanke ,  John J. Stanaway, Jr. ,  Alex L. Wierzbicki ,  Meyer J. Zola

发明人： Thomas L. Hiller ,  Ronald A. Spanke ,  John J. Stanaway, Jr. ,  Alex L. Wierzbicki ,  Meyer J. Zola

IPC分类号： H04L12/56 ,  H04L12/64 ,  H04Q11/04 ,  H04L12/66

CPC分类号： H04L49/1576 ,  H04L12/64 ,  H04L12/6418 ,  H04Q11/0478 ,  H04J2203/0012 ,  H04J2203/0066 ,  H04L2012/5619 ,  H04L2012/563 ,  H04L2012/5652 ,  H04L2012/5671 ,  H04L2012/6459 ,  H04L2012/6481

摘要： Pulse Code Modulation (PCM) signal streams are converted into Asynchronous Transfer Mode (ATM) cells for switching and transmission across a telecommunications network. Each cell carries one PCM sample of up to 48 different voice connections, the voice connections being selected from the PCM data streams because they have a common destination. The cells are transmitted over ATM virtual paths, each path transmitting one cell every 125 .mu.s. The ATM signals are switched by units for switching cells (cell switching), while keeping their payload contents intact, and by units for switching the signals for individual voice connections between cells of an ATM signal (cell remapping). Advantageously, ATM transmission systems interface with PCM systems without adding appreciable delay and without requiring additional buffering. Advantageously, new voice paths can be established most of the time by using available slots in the cells of existing virtual paths. Advantageously, large telecommunication networks can be implemented using a small number of switching units. For use with PCM switches, it is desirable to provide supervisory signals accompanying the PCM data. Advantageously, this arrangement permits supervisory signals to be passed within an access switch thus simplifying compatibility with existing switching systems.

摘要翻译： 脉冲编码调制（PCM）信号流被转换为异步传输模式（ATM）单元，用于通过电信网络的交换和传输。 每个小区携带多达48个不同语音连接的PCM样本，因为它们具有共同的目的地，所以从PCM数据流中选择语音连接。 这些小区通过ATM虚拟路径传输，每个路径每125个发送一个小区。 ATM信号由开关单元（单元切换）的单元切换，同时保持它们的有效载荷内容不变，以及用于切换ATM信号（单元重映射）的单元之间的各个语音连接的信号的单位。 有利地，ATM传输系统与PCM系统接口，而不增加明显的延迟并且不需要额外的缓冲。 有利的是，通过使用现有虚拟路径的小区中的可用时隙，大多数时间可以建立新的语音路径。 有利地，可以使用少量的交换单元来实现大型电信网络。 为了与PCM开关一起使用，需要提供伴随PCM数据的监控信号。 有利地，这种布置允许监视信号在接入交换机内传递，从而简化与现有交换系统的兼容性。

公开(公告)号：US5422882A

公开(公告)日：1995-06-06

申请号：US170549

申请日：1993-12-20

申请人： Thomas L. Hiller ,  Ronald A. Spanke ,  John J. Stanaway, Jr. ,  Alex L. Wierzbicki ,  Meyer J. Zola

发明人： Thomas L. Hiller ,  Ronald A. Spanke ,  John J. Stanaway, Jr. ,  Alex L. Wierzbicki ,  Meyer J. Zola

IPC分类号： H04L12/56 ,  H04L12/64 ,  H04Q11/04 ,  H04L12/66

CPC分类号： H04L49/1576 ,  H04L12/64 ,  H04L12/6418 ,  H04Q11/0478 ,  H04J2203/0012 ,  H04J2203/0066 ,  H04L2012/5619 ,  H04L2012/563 ,  H04L2012/5652 ,  H04L2012/5671 ,  H04L2012/6459 ,  H04L2012/6481

摘要： Pulse Code Modulation (PCM) signal streams are converted into Asynchronous Transfer Mode (ATM) cells for switching and transmission across a telecommunications network. Each cell carries one PCM sample of up to 48 different voice connections, the voice connections being selected from the PCM data streams because they have a common destination. The cells are transmitted over ATM virtual paths, each path transmitting one cell every 125 .mu.s. The ATM signals are switched by units for switching cells (cell switching), while keeping their payload contents intact, and by units for switching the signals for individual voice connections between cells of an ATM signal (cell remapping). Advantageously, ATM transmission systems interface with PCM systems without adding appreciable delay and without requiring additional buffering. Advantageously, new voice paths can be established most of the time by using available slots in the cells of existing virtual paths. Advantageously, large telecommunication networks can be implemented using a small number of switching units.

摘要翻译： 脉冲编码调制（PCM）信号流被转换为异步传输模式（ATM）单元，用于通过电信网络的交换和传输。 每个小区携带多达48个不同语音连接的PCM样本，因为它们具有共同的目的地，所以从PCM数据流中选择语音连接。 这些小区通过ATM虚拟路径传输，每个路径每125个发送一个小区。 ATM信号由开关单元（单元切换）的单元切换，同时保持它们的有效载荷内容不变，以及用于切换ATM信号（单元重映射）的单元之间的各个语音连接的信号的单位。 有利地，ATM传输系统与PCM系统接口，而不增加明显的延迟并且不需要额外的缓冲。 有利地，通过使用现有虚拟路径的小区中的可用时隙，大多数时间可以建立新的语音路径。 有利地，可以使用少量的交换单元来实现大型电信网络。