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41. 发明申请

US20180375800A1 Time transfer systems and methods over Flexible Ethernet 审中-公开
公开(公告)号：US20180375800A1
公开(公告)日：2018-12-27
申请号：US16118805
申请日：2018-08-31
申请人： Ciena Corporation
发明人： Sebastien Gareau , Marc Leclair
IPC分类号： H04L12/931 , H04L12/26
CPC分类号： H04L49/35 , H04L43/0858 , H04L43/0864 , H04L43/106
摘要： Time transfer systems and methods in Flexible Ethernet (FlexE) include, in a node supporting Flexible Ethernet (FlexE), communicating a FlexE group with an adjacent node via a FlexE shim; providing a synchronization message channel to the adjacent node via overhead of the FlexE shim for the FlexE group; and exchanging synchronization messages via the synchronization message channel with the adjacent node. The synchronization messages can be Precision Time Protocol (PTP) messages. A timestamp point for a synchronization message can be a start of a FlexE frame or multi-frame boundary.

42. 发明授权

US10135760B2 Flexible Ethernet chip-to-chip inteface systems and methods 有权
公开(公告)号：US10135760B2
公开(公告)日：2018-11-20
申请号：US14824715
申请日：2015-08-12
申请人： Ciena Corporation
发明人： Sebastien Gareau
IPC分类号： H04L12/931 , H04L12/801 , H04L12/891 , H04L12/933
摘要： A Chip-to-Chip (C2C) interface utilizing Flexible Ethernet (FlexE) includes circuitry configured to provide a packet interface on a single card or over backplane/fabric links between two devices, wherein the circuitry comprises flow control and channelization for the FlexE. Each of the two devices can include any of a Network Processor (NPU), a Fabric Interface Card (FIC), a framer, and a mapper. A rate of the FlexE can be increased to support additional information for the flow control and the channelization.

43. 发明授权

US09838290B2 Flexible ethernet operations, administration, and maintenance systems and methods 有权
公开(公告)号：US09838290B2
公开(公告)日：2017-12-05
申请号：US14824667
申请日：2015-08-12
申请人： Ciena Corporation
发明人： Sebastien Gareau
IPC分类号： H04L12/26 , H04L12/931
CPC分类号： H04L43/10 , H04L43/0811 , H04L49/20
摘要： A node configured to support a Flexible Ethernet (FlexE) client service in a network includes circuitry configured to receive a FlexE client; and circuitry configured to at least one of monitor and update one or more Operations, Administration, and Maintenance (OAM) fields in FlexE overhead, wherein the OAM fields cover a single client path along many network segments (sections) for the FlexE client. A method, implemented in a node, for supporting a Flexible Ethernet (FlexE) client service in a network includes receiving a FlexE client; and at least one of monitoring and updating one or more Operations, Administration, and Maintenance (OAM) fields in FlexE overhead, wherein the OAM fields cover a single client path along many network segments (sections) for the FlexE client.

44. 发明授权

US09800361B2 Flexible ethernet switching systems and methods 有权
公开(公告)号：US09800361B2
公开(公告)日：2017-10-24
申请号：US14855857
申请日：2015-09-16
申请人： Ciena Corporation
发明人： Sebastien Gareau , James Tierney , David Stuart
IPC分类号： H04J3/16 , H04L12/931
CPC分类号： H04J3/1611 , H04J3/1658 , H04J2203/0003 , H04J2203/0089 , H04L25/49 , H04L49/20 , H04L49/351 , H04Q11/04 , H04Q2213/13389
摘要： A Flexible Ethernet (FlexE) switch system configured to switch a FlexE client service includes interface circuitry configured to ingress and egress a plurality of FlexE clients; and switch circuitry configured to switch portions of the FlexE clients based on 64 b/66 b block boundaries between the interface circuitry. A node configured to switch a Flexible Ethernet (FlexE) client service in a network includes one or more line cards configured to ingress and egress a plurality of FlexE clients; and one or more switch fabrics configured to switch portions of the FlexE clients based on 64 b/66 b block boundaries between the one or more line cards.

45. 发明授权

US08867913B2 Optical transport network high order mapping systems and methods 有权
标题翻译：光传输网络高阶映射系统和方法
公开(公告)号：US08867913B2
公开(公告)日：2014-10-21
申请号：US13633173
申请日：2012-10-02
申请人： Ciena Corporation
发明人： Sebastien Gareau , Tim Norman , Richard Wyatt , Michael Hubbard
IPC分类号： H04J3/16
CPC分类号： H04J3/1652 , H04J3/1664
摘要： Optical Transport Network (OTN) High Order (HO) mapping systems and methods utilize pointer processing to map one HO signal into another similarly sized HO signal. An OTN HO mapping method and circuit include receiving a first HO signal at a first rate, asynchronously mapping the first HO signal into a second HO signal at a second rate, wherein the first rate and the second rate are substantially similar, translating a portion of overhead from the first HO signal to overhead of the second HO signal, utilizing pointers in the overhead of the second HO signal for frame alignment of the first HO signal, and transmitting the second HO signal containing the first HO signal.
摘要翻译：光传输网络（OTN）高阶（HO）映射系统和方法利用指针处理将一个HO信号映射到另一个类似大小的HO信号。 OTN HO映射方法和电路包括以第一速率接收第一HO信号，以第二速率异步地将第一HO信号映射成第二HO信号，其中第一速率和第二速率基本相似，将一部分从第一HO信号到第二HO信号的开销的开销，利用第二HO信号的开销中的指针用于第一HO信号的帧对准，以及发送包含第一HO信号的第二HO信号。

46. 发明授权

US12107629B2 Optical delay calibration of optical modules 有权
公开(公告)号：US12107629B2
公开(公告)日：2024-10-01
申请号：US18087004
申请日：2022-12-22
申请人： Ciena Corporation
发明人： Eric S. Maniloff , Sebastien Gareau , Benard J. Rhody
IPC分类号： H04B10/43 , H04B10/524
CPC分类号： H04B10/43 , H04B10/524
摘要： An optical module includes a transmitter assembly; a receiver assembly; and circuitry connected to the transmitter assembly and the receiver assembly, wherein the circuity is configured to, responsive to a test of delay in one or more of the transmitter assembly and the receiver assembly, store a delay value for one or more of the transmitter assembly and the receiver assembly, and, responsive to a query of the delay, provide the stored delay value for each of the transmitter assembly and the receiver assembly. The circuitry can be further configured to perform the test of delay via inserting an event that is used for timing detection at a corresponding receiver assembly.

47. 发明授权

US11974079B2 Subrating and multiplexing non-standard rates in ZR and ZR+ optical interfaces 有权
公开(公告)号：US11974079B2
公开(公告)日：2024-04-30
申请号：US17630735
申请日：2020-07-20
申请人： Ciena Corporation
发明人： Sebastien Gareau
IPC分类号： H04Q11/00 , H04J14/02
CPC分类号： H04Q11/0071 , H04J14/0261 , H04Q11/0066 , H04Q2011/0086
摘要： A ZR or ZR+ interface includes circuitry configured to receive one or more client signals; and circuitry configured to transmit the one or more client signals as an aggregate signal in a Flexible Ethernet (FlexE) format in one of a ZR format and a ZR+ format, including a mapping indicative of how the one or more client signals are one of multiplexed and subrated into the aggregate signal. The aggregate signal can have a rate that does not correspond to a standard Ethernet Physical Medium Dependent (PMD). The FlexE format can include a plurality of FlexE instances with at least one of the FlexE instances having calendar slots removed for a subrating application.

48. 发明公开

US20240048234A1 FlexO/ZR subrating and partial survivability 审中-公开
公开(公告)号：US20240048234A1
公开(公告)日：2024-02-08
申请号：US18492024
申请日：2023-10-23
申请人： Ciena Corporation
发明人： Sebastien Gareau
IPC分类号： H04B10/03 , H04J3/16 , H04J3/14 , H04B10/079
CPC分类号： H04B10/03 , H04J3/1652 , H04J3/14 , H04B10/0793
摘要： An optical interface includes circuitry configured to operate the optical interface at a first rate, subsequent to a requirement to subrate the optical interface to a second rate, determine which services are affected, signal a partial failure for the one or more affected services, and operate the optical interface at a second rate that is less than the first rate. The optical interface can be a Flexible Optical (FlexO) or ZR interface.

49. 发明授权

US11658737B2 Messaging channel in a coherent optical DSP frame 有权
公开(公告)号：US11658737B2
公开(公告)日：2023-05-23
申请号：US17383897
申请日：2021-07-23
申请人： Ciena Corporation
发明人： Sebastien Gareau , Timothy James Creasy
IPC分类号： H04B10/61 , H04B10/07 , H04J3/14 , H04L49/9057 , H04L25/49 , H04B10/40
CPC分类号： H04B10/07 , H04B10/40 , H04B10/616 , H04J3/14 , H04L25/4908 , H04L49/9057 , H04J2203/006
摘要： Systems and methods include receiving a plurality of symbols that are part of a defined Digital Signal Processing (DSP) frame for coherent optical communication, wherein the DSP frame structure has a messaging channel incorporated therein that includes a subset of the plurality of symbols; capturing multiple samples of the messaging channel; and determining a message in the messaging channel based on analysis of the multiple samples. The method can further include transmitting, in the messaging channel, a reply to the message with the reply being repeated multiple times. The analysis is performed prior to Forward Error Correction (FEC) decoding on the data path.

50. 发明授权

US11646864B2 Systems and methods for precise time synchronization with optical modules 有权
公开(公告)号：US11646864B2
公开(公告)日：2023-05-09
申请号：US16955272
申请日：2019-01-18
申请人： Ciena Corporation
发明人： Daniel Claude Perras , Sebastien Gareau
IPC分类号： H04B10/40 , H04B10/61 , H04L7/00 , H04J3/06
CPC分类号： H04L7/0075 , H04B10/40 , H04J3/0638 , H04J3/0697 , H04J3/0667
摘要： An optical module for use in an optical system is disclosed, the optical module implementing Precision Time Protocol (PTP) clock functionality therein. The optical module includes an electrical interface with the optical system; circuitry connected to the electrical interface and configured to implement a plurality of functions of functionality; an optical interface connected to the circuitry; and timing circuitry connected to the electrical interface and one or more of the plurality of functions, wherein the timing circuitry is configured to implement the PTP clock functionality.

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