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公开(公告)号：US11245491B2
公开(公告)日：2022-02-08
申请号：US17231504
申请日：2021-04-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Su , Maarten Petrus Joseph Vissers , Qiuyou Wu
Abstract: A first optical network device groups a plurality of FlexO instance frames into one group, where each of the plurality of FlexO instance frames carries one OTU signal; then, performs multiplexing on the plurality of FlexO instance frames grouped into one group, to generate one first FlexO frame; next, performing scrambling and FEC processing on the first FlexO frame to generate one second FlexO frame and send it to a second optical network device. If a rate of the FlexO instance frame is 100 Gbps and two FlexO instance frames are grouped into one group, the 200 G optical module can be used in the transmission method.
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公开(公告)号：US11082199B2
公开(公告)日：2021-08-03
申请号：US16843520
申请日：2020-04-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Su , Qiuyou Wu , Junling Xiang
Abstract: This application provides a data transmission method in an optical network and an optical network device. The method includes: obtaining, by a first device, first synchronization information from a first service data stream, and determining a to-be-transmitted service data stream; generating second synchronization information based on the first synchronization information; mapping the second synchronization information and the to-be-transmitted service data stream to an optical carrier container; and sending the optical carrier container. A second device receives the optical carrier container; obtains a second service data stream and third synchronization information from the optical carrier container through demapping; generates fourth synchronization information based on the third synchronization information; and inserts the fourth synchronization information into the second service data stream, to obtain a third service data stream. In this way, time synchronization precision is improved.
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公开(公告)号：US11063686B2
公开(公告)日：2021-07-13
申请号：US16691273
申请日：2019-11-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Maarten Vissers , Qiuyou Wu , Xin Xiao , Wei Su
Abstract: Methods and apparatuses for mapping processing and de-mapping processing in an optical transport network are provided. A Low Order Optical Channel Data Unit (LO ODU) signal is mapped into a payload area of an Optical Channel Data Tributary (ODTU) signal in units of M bytes. M is equal to the number of time slots of a High Order Optical Channel Payload Unit (HO OPU) that are to be occupied by the ODTU signal, and M is an integer larger than 1. Overhead information is encapsulated to an overhead area of the ODTU signal. Thereafter, the ODTU signal is multiplexed into the HO OPU. According to the application, an efficient and universal mode for mapping the LO ODU to the HO OPU is provided.
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34.发明授权公开(公告)号：US10887020B2
公开(公告)日：2021-01-05
申请号：US16280444
申请日：2019-02-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Su , Qiuyou Wu , Limin Dong
IPC: H04B10/516 , H04B10/27 , H04J3/16 , H04J14/02
Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting and receiving a client signal in an optical transport network. In the transmission method, a received client signal is mapped into a variable-rate container OTU-N, wherein a rate of the OTU-N is N times as high as a preset reference rate; and then, the variable-rate container OTU-N is split into N optical sub-channel transport units OTUsubs by column, where a rate of each OTUsub equals to the reference rate; next, the N optical sub-channel transport units OTUsubs are modulated onto one or more optical carriers; at last, the one or more optical carriers is transmitted through a fiber.
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公开(公告)号：US10374738B2
公开(公告)日：2019-08-06
申请号：US15723991
申请日：2017-10-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Limin Dong , Qiuyou Wu
Abstract: Method and apparatus for transporting client signals in an OTN are illustrated. In one embodiment, the method includes: mapping a client signal into a first Optical Channel Data Tributary Unit (ODTU) frame including an ODTU payload area and an ODTU overhead area, such that a plurality of n-bit data units of the client signal are inserted into the ODTU payload area and number information is inserted into the ODTU overhead area; mapping the first ODTU frame into the OPUk frame, such that the plurality of n-bit data units are mapped into an OPUk payload part occupying at least one Tributary Slot (TS) of the OPUk payload area and the number information of the ODTU overhead area is mapped into a first OPUk overhead part of the OPUk frame; forming an Optical Channel Transport Unit-k (OTUk) frame including the OPUk frame for transmission.
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Patent Agency Ranking
公开(公告)号：US09705818B2
公开(公告)日：2017-07-11
申请号：US14676425
申请日：2015-04-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yi Lin , Qiuyou Wu , Fatai Zhang , Jianrui Han , Xiaobing Zi
IPC: H04J14/08 , H04J3/16 , H04L12/913 , H04Q11/00
CPC classification number: H04L47/724 , H04J3/1652 , H04J14/08 , H04J2203/0067 , H04Q11/0066 , H04Q2011/0086
Abstract: Embodiments of the present invention relate a method, an apparatus, and a system for assigning a tributary port number. The method includes: receiving a service path request message including a service type for establishing a service path used to bear a Lower Order ODU service; determining an OTU link; determining a free tributary slot resource in the OTU link; if a MSI bytes in the OTU link indicates a service type, assigning a tributary port number other than tributary port numbers used by Lower Order ODU services having the same type as the Lower Order ODU service in the OTU link; or if the MSI bytes in the OTU link does not indicate a service type, assigning a tributary port number other than tributary port numbers used by all types of Lower Order ODU services in the OTU link; and sending a service path acknowledgment message to the neighboring node.
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公开(公告)号：US09634813B2
公开(公告)日：2017-04-25
申请号：US14919280
申请日：2015-10-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Su , Qiuyou Wu , Yongheng Dai
CPC classification number: H04L5/0053 , H04J3/1652 , H04J14/00 , H04J14/0257 , H04J14/0267 , H04J14/0298 , H04J14/08 , H04L5/0098 , H04L27/2697 , H04Q11/0066 , H04Q2011/0086
Abstract: A hitless multi-carrier spectrum migration method and apparatus are disclosed. The method includes: obtaining a spectrum of a secondary carrier and a to-be-migrated carrier in a target carrier group from a network management system, and generating the secondary carrier according to the spectrum of the secondary carrier; sending a migration notification to a peer network device, and performing answer response to the migration notification from the peer network device, where the answer response is used to determine that network devices at both ends can perform spectrum migration; sending migration signaling to the peer network device; and receiving the migration signaling sent by the peer network device, and migrating, according to the migration signaling, overhead information and a service that are borne on the to-be-migrated carrier in the target carrier group to the secondary carrier.
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公开(公告)号：US20160037242A1
公开(公告)日：2016-02-04
申请号：US14880044
申请日：2015-10-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Su , Qiuyou Wu , Limin Dong
IPC: H04Q11/00
CPC classification number: H04Q11/0071 , H04J3/14 , H04J3/1652 , H04J14/025 , H04J2203/006 , H04J2203/0066 , H04J2203/0094 , H04L41/00 , H04Q2011/0086
Abstract: The present invention provides a method, which including: determining, by a first node, an adjustment requirement for a line interface rate; and according to the adjustment requirement for the line interface rate, adjusting, by the first node, a transport bandwidth of an optical channel (OCh) link, adjusting the number of optical channel transport lanes (OTLs) in an optical channel transport unit (OTUCn) link, and adjusting the number of optical channel data lanes (ODLs) in an optical channel data unit (ODUCn) link, where the OTL is in one-to-one correspondence with the ODL. In embodiments of the present invention, according to an adjustment requirement for a line interface rate, a transport bandwidth of an OCh link is adjusted, the number of OTLs in an OTUCn link is adjusted, and the number of ODLs in an ODUCn link is adjusted, so that the line interface rate can be dynamically adjusted.
Abstract translation: 本发明提供一种方法，其包括：由第一节点确定线路接口速率的调整要求; 根据线路接口速率的调整要求，通过第一节点调整光信道（OCh）链路的传输带宽，调整光信道传输单元（OTUCn）中的光信道传输通道数（OTL） ）链路，并且调整光信道数据单元（ODUCn）链路中的光信道数据通路（ODL）的数量，其中OTL与ODL一一对应。 在本发明的实施例中，根据对线路接口速率的调整要求，调整OCh链路的传输带宽，调整OTUCn链路中的OTL的数量，并调整ODUCn链路中的ODL的数目 ，使线路接口速率可以动态调整。
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公开(公告)号：US11962349B2
公开(公告)日：2024-04-16
申请号：US17650873
申请日：2022-02-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Su , Maarten Petrus Joseph Vissers , Qiuyou Wu
IPC: H04B10/516 , H04B10/60 , H04J3/16 , H04L12/28 , H04L47/34
CPC classification number: H04B10/516 , H04B10/60 , H04J3/1652 , H04J3/1658 , H04L47/34 , H04L12/2885
Abstract: An embodiment method includes: mapping a to-be-transmitted optical channel unit signal of n times a benchmark rate to X first optical channel physical link signals; adding a link sequence indicator overhead to each of the X first optical channel physical link signals, to generate X second optical channel physical link signals; and modulating and sending the X second optical channel physical link signals by using X preset optical modules in a one-to-one manner. A rate of the first optical channel physical link signal is mi times the benchmark rate, n≥2, X≥2, mi≥1, and
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公开(公告)号：US11949501B2
公开(公告)日：2024-04-02
申请号：US17951937
申请日：2022-09-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei Su , Maarten Petrus Joseph Vissers , Qiuyou Wu
CPC classification number: H04J3/1652 , H04B10/27 , H04J3/16 , H04L12/4633
Abstract: A service mapping processing method for an optical transport network, an apparatus, and a system are provided, where the method includes: generating mapping adaptation indication information according to a mapping granularity of a to-be-carried LO ODU, where the mapping granularity is M×g bytes, M is a quantity of timeslots occupied by the to-be-carried LO ODU in an OPUCn, g is a size of a mapping granularity corresponding to each timeslot of the timeslots occupied by the LO ODU, and g is a positive integer greater than 1; mapping, according to the mapping adaptation indication information, the to-be-carried LO ODU to an ODTUCn.M payload area; encapsulating the mapping adaptation indication information into the ODTUCn.M overhead area; encapsulating the ODTUCn.M into an OTUCn; and sending the OTUCn to a receive end device. The method avoids that OTUCns that use different mapping granularities cannot interwork between a receive end and a transmit end.
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