公开(公告)号：US20040184448A1

公开(公告)日：2004-09-23

申请号：US10780686

申请日：2004-02-19

Applicant: NORTEL NETWORKS LIMITED

Inventor： Maged E. Beshai

IPC: H04L012/50

CPC classification number: H04Q11/0005 ,  H04L49/10 ,  H04L49/1546 ,  H04L49/30 ,  H04Q2011/0035

Abstract: A polyphase circulating switch includes switch modules interconnected through a multiplicity of rotators preferably arranged in complementary groups of opposite rotation directions. A polyphase circulating switch having a low switching delay is derived from a multi-rotator circulating switch by providing programmable rotators having adjustable relative rotator-cycle phases. A low delay high-capacity switch may also be constructed from prior-art medium-capacity rotator space switches with mutually phase-shifted rotation cycles. A network comprising several constellations of switch modules distributed over a wide geographic area, where the switch modules of each constellation are interconnected through a rotator assembly, is also disclosed. A rotator assembly may comprise an array of rotators and a master controller for data-transfer scheduling and time-coordination.

Abstract translation: 多相循环开关包括通过多个旋转器相互连接的开关模块，所述多个转子优选地以相反的旋转方向互补的组布置。 具有低开关延迟的多相循环开关通过提供具有可调节的相对旋转周期相位的可编程旋转器从多旋转循环开关导出。 低延迟大容量开关也可以由具有相互相移的旋转周期的现有技术的中容量旋转器空间开关构成。 还公开了一种网络，其包括分布在广泛地理区域上的交换模块的几个星座，其中每个星座的交换模块通过旋转器组件互连。 旋转器组件可以包括旋转体阵列和用于数据传送调度和时间协调的主控制器。

公开(公告)号：US20040091264A1

公开(公告)日：2004-05-13

申请号：US10290314

申请日：2002-11-08

Applicant: NORTEL NETWORKS LIMITED

Inventor： Maged E. Beshai

IPC: H04J014/00

CPC classification number: H04Q11/0005 ,  H04Q11/0071 ,  H04Q2011/0033

Abstract: An optical shell node is provided with an ability to perform time switching on signals received from subtending edge nodes and channel switching on signals received from other shell nodes and destined for the subtending edge nodes. The signals received from the subtending edge nodes may be aggregated into signals that are channel switched by optical core nodes or by other shell nodes toward destination edge nodes. A resultant network formed of these shell nodes along with channel-switching core nodes and subtending-upon-shell-node edge nodes is capable of expansion beyond a continental scale, can support large numbers of edge nodes and has a higher bit rate capacity than known optical network structures.

Abstract translation: 光学壳体节点具有对对边缘节点接收的信号执行时间切换的能力，并且对从其他壳节点接收的并发往边缘节点的信号进行信道切换。 从对边缘节点接收的信号可以被聚合成由光核心节点或其他壳节点向目的地边缘节点切换的信道。 由这些壳节点形成的结果网络以及信道切换核心节点和对边壳节点边缘节点能够扩展到大陆范围之外，可以支持大量的边缘节点，并且具有比已知的更高的比特率容量 光网络结构。

公开(公告)号：US20040037558A1

公开(公告)日：2004-02-26

申请号：US10223222

申请日：2002-08-20

Applicant: NORTEL NETWORKS LIMITED

Inventor： Maged E. Beshai

IPC: H04J014/02 ,  H04J014/08

CPC classification number: H04Q11/0005 ,  H04J14/08 ,  H04Q11/0071 ,  H04Q2011/0024 ,  H04Q2011/0033 ,  H04Q2011/0039 ,  H04Q2011/005 ,  H04Q2011/0052

Abstract: A modular optical switch includes a set of optical switch modules connected in a mesh, a master controller for the whole optical node and a switch-module controller for each of the optical switch modules. The optical switch modules receive optical signals from, and transmit optical signals to, edge nodes based on connection requests received from the edge nodes. The master controller acts to select a path, using a simple or compound time-slot matching process, through the mesh of switch modules for each optical signal related to a connection request. Advantageously, the optical switch modules are fast switching, enabling the use of time-sharing schemes such as TDM, and the modular optical core node is made practical by efficient path selection at the master controller. A hybrid modular switch may include both optical and electronic switch modules, a master controller, and a switch-module controller for each of the switch modules.

Abstract translation: 模块化光开关包括连接在网格中的一组光开关模块，用于整个光节点的主控制器和用于每个光开关模块的开关模块控制器。 光交换模块基于从边缘节点接收到的连接请求，接收来自边缘节点的光信号，并向其发送光信号。 主控制器通过用于与连接请求相关的每个光信号的开关模块的网格来选择路径，使用简单或复合的时隙匹配过程。 有利地，光开关模块是快速切换，使得能够使用诸如TDM的时间共享方案，并且通过在主控制器处的有效路径选择使得模块化光核心节点变得实用。 混合模块开关可以包括光学和电子开关模块，主控制器和用于每个开关模块的开关模块控制器。

公开(公告)号：US20030174697A1

公开(公告)日：2003-09-18

申请号：US10409197

申请日：2003-04-09

Applicant: NORTEL NETWORKS LIMITED

Inventor： Maged E. Beshai

IPC: H04L012/50

CPC classification number: H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0039

Abstract: A method of interleaving time-critical data packets and delay-tolerant data packets on a shared channel emanating from a control port of a switching node permits a strict time requirement for transmission of time-critical data packets to be met. A control circuit of the switching node stores a local time, an indication of a time required to transfer a delay-tolerant data packet waiting to be transferred, a comparator and a selector to control transfer of the time-critical and delay tolerant data packets.