公开(公告)号：WO2013006271A3

公开(公告)日：2013-01-10

申请号：PCT/US2012/043269

申请日：2012-06-20

Applicant: ALCATEL-LUCENT USA INC. ,  HAO, Fang ,  KODIALAM, Muralidharam, S. ,  LAKSHMAN, Tirunell, V. ,  SONG, Haoyu ,  ZIRNGIBL, Martin

Inventor： HAO, Fang ,  KODIALAM, Muralidharam, S. ,  LAKSHMAN, Tirunell, V. ,  SONG, Haoyu ,  ZIRNGIBL, Martin

IPC: H04Q11/00

Abstract: A manner of providing redundancy protection for a data center network that is both reliable and low-cost, hi a data center network where the data traffic between numerous access nodes and a network core layer via primary aggregation nodes, an optical network device such as and OLT (optical line terminal) is provided as a backup aggregation node for one or more of the primary aggregation nodes. When a communication path through a primary aggregation node fails, traffic is routed through the optical network device. In a preferred embodiment, a communication link is formed from a plurality of access nodes to a single port of the OLT or other optical network device via an optical splitter that combines upstream transmissions and distributes downstream transmissions. The upstream transmissions from the plurality of access nodes may occur according to an allocation schedule generated when the backup aggregation node is needed.

公开(公告)号：WO2013006271A2

公开(公告)日：2013-01-10

申请号：PCT/US2012043269

申请日：2012-06-20

Applicant: ALCATEL LUCENT USA INC ,  HAO FANG ,  KODIALAM MURALIDHARAM S ,  LAKSHMAN TIRUNELL V ,  SONG HAOYU ,  ZIRNGIBL MARTIN

Inventor： HAO FANG ,  KODIALAM MURALIDHARAM S ,  LAKSHMAN TIRUNELL V ,  SONG HAOYU ,  ZIRNGIBL MARTIN

IPC: H04Q11/00

CPC classification number: H04B10/032 ,  H04B10/038 ,  H04B10/27 ,  H04L1/22 ,  H04Q11/00

Abstract: A manner of providing redundancy protection for a data center network that is both reliable and low-cost, hi a data center network where the data traffic between numerous access nodes and a network core layer via primary aggregation nodes, an optical network device such as and OLT (optical line terminal) is provided as a backup aggregation node for one or more of the primary aggregation nodes. When a communication path through a primary aggregation node fails, traffic is routed through the optical network device. In a preferred embodiment, a communication link is formed from a plurality of access nodes to a single port of the OLT or other optical network device via an optical splitter that combines upstream transmissions and distributes downstream transmissions. The upstream transmissions from the plurality of access nodes may occur according to an allocation schedule generated when the backup aggregation node is needed.

Abstract translation: 一种为数据中心网络提供既可靠又低成本的冗余保护的方式。在数据中心网络中，多个接入节点和网络核心层之间的数据通信经由主要汇聚节点，光网络设备 提供OLT（光线路终端）作为一个或多个主聚合节点的备用汇聚节点。 当通过主聚合节点的通信路径出现故障时，流量将通过光网络设备进行路由。 在优选实施例中，通信链路由多个接入节点经由组合上游传输并分配下游传输的光分路器形成到OLT或其他光网络设备的单个端口。 来自多个接入节点的上行传输可以根据需要备份汇聚节点时生成的分配调度来进行。

公开(公告)号：WO2011119321A1

公开(公告)日：2011-09-29

申请号：PCT/US2011/027514

申请日：2011-03-08

Applicant: ALCATEL-LUCENT USA INC. ,  GRIPP, Jurgen ,  SIMSARIAN, John, Edward ,  ZIRNGIBL, Martin

Inventor： GRIPP, Jurgen ,  SIMSARIAN, John, Edward ,  ZIRNGIBL, Martin

IPC: H04B10/148 ,  H04J14/00

CPC classification number: H04B10/613 ,  H04B10/61 ,  H04B10/611 ,  H04B10/6161 ,  H04J14/0204 ,  H04J14/021 ,  H04J14/0227 ,  H04J14/0257 ,  H04J14/0283 ,  H04J14/06

Abstract: Embodiments for optical communication are provided in which tunable receiver selects and demodulates a first channel of a WDM signal. An example receiver includes a tunable local oscillator for generating a local oscillator signal approximately centered at a first channel wavelength. An optical hybrid of the receiver receives at a first input a wavelength-division-multiplexed (WDM) signal with a M-ary modulation scheme, wherein M is an integer greater than 2, and at a second input the local oscillator signal. A plurality of detectors detect in-phase and quadrature components of the first channel wavelength output of the optical hybrid, which are digitizing by a plurality of analog-to- digital converters. A digital signal processor processes the digitized in-phase and quadrature components in order to recover data carried by the first channel of the WDM signal.

Abstract translation: 提供了光通信的实施例，其中可调谐接收机选择和解调WDM信号的第一信道。 示例性接收器包括用于产生大致居中在第一信道波长的本地振荡器信号的可调本地振荡器。 接收机的光混合器在第一输入处接收具有M进制调制方案的波分复用（WDM）信号，其中M是大于2的整数，在第二输入处接收本地振荡器信号。 多个检测器检测由多个模数转换器数字化的光混合器的第一通道波长输出的同相和正交分量。 数字信号处理器处理数字化的同相和正交分量，以便恢复由WDM信号的第一通道承载的数据。