公开(公告)号：US20240333411A1

公开(公告)日：2024-10-03

申请号：US18127103

申请日：2023-03-28

申请人： Google LLC

发明人： Benoit Lefebvre ,  Zuowei Shen ,  Hong Liu ,  Arjun Singh

IPC分类号： H04J3/06 ,  H04Q11/00

CPC分类号： H04J3/0682 ,  H04Q11/0066 ,  H04Q2011/0079

摘要： The technology is generally directed to programming delays in hardware already existing within fiber networks to reduce the unfairness in transmitting and receiving data. The delays may be programmed in the optics hardware after the deployment of the network. The delays may be determined based on the time it takes the networking switch to replicate data to be transmitted and/or the length of the cables. According to some examples, the delays may be programmed at either or both the egress and ingress optics hardware of a cable. The programmable delay reduces the unfairness of one destination, or end user, receiving data before another destination when the information is intended to be received synchronously.

公开(公告)号：US20240323117A1

公开(公告)日：2024-09-26

申请号：US18287146

申请日：2022-08-29

申请人： Ciena Corporation

发明人： Cengiz Alaettinoglu ,  Gerard Leo Swinkels ,  Ian Hamish Duncan

IPC分类号： H04L45/50 ,  H04B10/27

CPC分类号： H04L45/50 ,  H04B10/27 ,  H04L41/082 ,  H04L45/306 ,  H04L47/125 ,  H04L47/225 ,  H04Q11/0066 ,  H04Q2011/0081 ,  H04Q2011/0084 ,  H04Q2011/0086

摘要： Systems and methods for coordinating an optical layer and a packet layer in a network, include a Software Defined Networking (SDN) Internet Protocol (IP) application configured to implement a closed loop for analytics, recommendations, provisioning, and monitoring, of a plurality of routers in the packet layer; and a variable capacity application configured to determine optical path viability, compute excess optical margin, and recommend and cause capacity upgrades and downgrades, by communicating with a plurality of network elements in the optical layer, wherein the SDN IP application and the variable capacity application coordinate activity therebetween based on conditions in the network. The activity is coordinated based on underlying capacity changes in the optical layer and workload changes in the packet layer.

公开(公告)号：US20240314475A1

公开(公告)日：2024-09-19

申请号：US18670609

申请日：2024-05-21

申请人： ZTE Corporation

发明人： Weiliang ZHANG ,  Liquan YUAN ,  Zheng LIU ,  Dan GENG ,  Yong GUO ,  Yongjia YIN

IPC分类号： H04Q11/00 ,  H04L1/00

CPC分类号： H04Q11/0067 ,  H04L1/0083 ,  H04Q11/0066 ,  H04Q2011/0064 ,  H04Q2011/0081

摘要： Provided are a data processing method and apparatus for a Passive Optical Network (PON) system and a PON system. The method includes: a first partial bandwidth is allocated to a first Optical Network Unit (ONU) within a first time window, the first ONU having completed registration and being in a working state; and a first data frame from the first ONU is received within a time corresponding to the first partial bandwidth, and a second data frame from a second ONU is detected within the first time window, the second ONU having not completed registration.

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.

公开(公告)号：US20240120993A1

公开(公告)日：2024-04-11

申请号：US18545430

申请日：2023-12-19

申请人： ORCKIT IP, LLC

发明人： Daniel Cohn ,  Rafi Ram

IPC分类号： H04B10/032 ,  H04L45/00 ,  H04L45/28 ,  H04L49/55 ,  H04Q11/00

CPC分类号： H04B10/032 ,  H04L45/28 ,  H04L45/68 ,  H04L49/557 ,  H04Q11/0066 ,  H04Q2011/0081

摘要： A method is presented for supporting SNCP over a packet network connecting to two SDH sub-networks and transporting one or more SDH paths that are SNCP-protected in both SDH sub-networks. The packet network connects to each of two sub-network interconnection points by a working path and a protection path. The packet sub-network may provide the same type of path protection as an SDH sub-network using SNCP, while avoiding bandwidth duplication.

公开(公告)号：US11902718B2

公开(公告)日：2024-02-13

申请号：US17715315

申请日：2022-04-07

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： Junling Xiang ,  Wei Su

IPC分类号： H04B10/00 ,  H04Q11/00 ,  H04J14/00

CPC分类号： H04Q11/0003 ,  H04Q11/0066

摘要： A service data transmission method, a related device, and a digital processing chip, to reduce a transmission latency of service data. The method in the embodiments includes the following steps: a first device encapsulates a channel frame in a transmission frame, where the channel frame is used to carry service data. Next, the first device sends the transmission frame to a second device. A transmission manner of the channel frame is a non-decapsulation manner between an optical transport network and an access network.

公开(公告)号：US11800264B2

公开(公告)日：2023-10-24

申请号：US16969871

申请日：2019-02-14

申请人： Orange

发明人： Bing Han ,  Paulette Gavignet ,  Erwan Pincemin

IPC分类号： H04J14/00 ,  H04Q11/00 ,  H04J14/02 ,  H04Q11/04

CPC分类号： H04Q11/0066 ,  H04J14/0298 ,  H04Q11/0435 ,  H04Q2011/0033

摘要： A system for sending data in an optical network comprising a plurality of source nodes and destination nodes is disclosed. In one aspect, a source node generates, in a spectral band that is associated with it, a multi-carrier optical data signal obtained by modulation of a source signal at a source wavelength and sends it in the form of single-band data bursts that can be associated with distinct source wavelengths. A single-band data burst comprises, in addition to payload data symbols (PL), a sequence of learning symbols (TS) composed of a plurality of learning symbols. A control unit belonging to the control plane of the optical network determines, for at least one of the source nodes, instants of sending of the single-band data bursts and source wavelengths to be used for sending these single-band data bursts, as a function of a path time of the data bursts between the source node and one of the destination nodes associated with the source wavelength. The control unit also determines the size of the sequence of learning symbols (TS) of the single-band data bursts.

公开(公告)号：US20190158939A1

公开(公告)日：2019-05-23

申请号：US16239917

申请日：2019-01-04

申请人： Ciena Corporation

发明人： Michael Y. Frankel ,  Vladimir Pelekhaty

IPC分类号： H04Q11/00 ,  H04B10/25

CPC分类号： H04Q11/0005 ,  H04B10/25 ,  H04Q11/0003 ,  H04Q11/0062 ,  H04Q11/0066 ,  H04Q2011/0056 ,  H04Q2011/0096

摘要： An optical reshuffler system for implementing a flat, highly connected optical network for data center and High-Performance Computing applications includes a first optical reshuffler having a plurality of ports each configured to optically connect to a corresponding switch and having internal connectivity which optically connect each of the plurality of ports internal to the first optical reshuffler such that each port connects to one other port for switch interconnection, wherein the internal connectivity in the first optical reshuffler and ports follow rules by which subtending switches are added to corresponding ports provide a topology for the flat, highly connected optical network.

公开(公告)号：US20190045282A1

公开(公告)日：2019-02-07

申请号：US16153201

申请日：2018-10-05

申请人： Huawei Technologies Co., Ltd.

发明人： Jian Yin ,  Wei Wang ,  Peng Li ,  Fuxue Liu

IPC分类号： H04Q11/00 ,  H04J3/16 ,  H04J3/14 ,  H04J14/08 ,  H04B10/079

CPC分类号： H04Q11/0066 ,  H04B10/0795 ,  H04J3/14 ,  H04J3/1652 ,  H04J14/08 ,  H04J2203/006 ,  H04J2203/0062 ,  H04L1/0078 ,  H04Q2011/0081 ,  H04Q2011/0083

摘要： A fault detection method and device is disclosed. The method includes obtaining, by an optical transport network (OTN) device, a first OTN frame. The first OTN frame includes a plurality of payload areas. Each payload area includes payload check information and payload data. The method further includes performing fault detection, according to the payload check information, of payload data of a payload area in which the payload check information is located. The first OTN frame is divided into a plurality of payload areas, and corresponding payload check information is carried in each payload area.

公开(公告)号：US20180332375A1

公开(公告)日：2018-11-15

申请号：US16033081

申请日：2018-07-11

申请人： Facebook, Inc.

发明人： Nitin Kumar Goel ,  Satyajeet Singh Ahuja ,  Gayathrinath Nagarajan

IPC分类号： H04Q11/00

CPC分类号： H04Q11/0066 ,  H04B10/27 ,  H04J14/0212 ,  H04Q2011/0016 ,  H04Q2011/0081

摘要： A direction-switchable transponder of a high speed communications network, e.g., an fiber optic data communications network, is capable of dynamically reversing the data traffic flow of its various communications channels in response to a signal. The signal can specify a number of channels, a channel map, or a required bandwidth. The direction-switchable transponder can receive a signal relating to network bandwidth requirements; select, based on the received signal, one or more fiber optic channels for reversing direction of flow of network traffic; and dynamically and automatically reconfigure the selected fiber optic signal to reverse direction of flow of network traffic. By responding to asymmetric bandwidth requirements, the direction-switchable transponder uses high speed communications network lines more efficiently.