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1. 发明公开

EP4398665A1 COMMUNICATION METHOD, APPARATUS AND SYSTEM 审中-公开
公开(公告)号：EP4398665A1
公开(公告)日：2024-07-10
申请号：EP22882435.5
申请日：2022-08-25
申请人： Huawei Technologies Co., Ltd.
发明人： LYU, Rui , ZHENG, Bofang , XIAO, Xinhua
IPC分类号： H04W72/12
CPC分类号： H04W72/563 , H04W72/12
摘要： A communication method, apparatus, and system are provided, and belong to the field of communication technologies. The method includes: After receiving a first electromagnetic wave signal sent by a first adjacent node, a target third node performs target processing on the first electromagnetic wave signal to obtain a second electromagnetic wave signal, and sends the second electromagnetic wave signal to a second adjacent node. A first node, at least one third node, and a second node are sequentially disposed on a cable, and among these nodes, the target third node is adjacent to the first adjacent node and the second adjacent node. The target processing includes processing used to cause conjugate reversal of a spectrum of the electromagnetic wave signal. This application can resolve a problem that nodes cannot effectively communicate with each other. This application is used to process the electromagnetic wave signal transmitted over the cable.

2. 发明公开

EP3852286A1 OPTICAL TRANSCEIVER AND COHERENT OPTICAL RECEIVING SYSTEM 审中-公开
公开(公告)号：EP3852286A1
公开(公告)日：2021-07-21
申请号：EP19871564.1
申请日：2019-10-10
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： ZHAO, Ping , LI, Liangchuan , XIAO, Xinhua
IPC分类号： H04B10/63 , H04B10/40
摘要： Embodiments of the present invention provide an optical transceiver and an optical coherent receiving system. The optical transceiver includes an optical interface, an optical receiver, and a polarization-maintaining optical waveguide, where the optical receiver includes a mixer, an optical-to-electrical converter, and a digital signal processor. The optical interface is configured to receive first local oscillator light from a first laser outside the transceiver; the mixer is configured to receive the first local oscillator light from the optical interface and receive first signal light modulated on laser light emitted by the laser outside the transceiver; the polarization-maintaining optical waveguide is configured to connect the optical interface and the optical receiver, where a polarization state of the first local oscillator light remains unchanged when being transmitted in the polarization-maintaining optical waveguide; the optical-to-electrical converter and an analog-to-digital converter are configured to perform optical-to-electrical conversion and analog-to-digital conversion on the mixed light to obtain a digital signal that carries data; and the digital signal processor is configured to process the digital signal to obtain the data. The solution in the embodiments of the present invention can reduce costs and phase noise.

3. 发明公开

EP3468071A1 DATA CENTER 有权
公开(公告)号：EP3468071A1
公开(公告)日：2019-04-10
申请号：EP17842602.9
申请日：2017-04-18
申请人： Huawei Technologies Co., Ltd.
发明人： XIAO, Xinhua , SHEN, Xiao Andy , WANG, Yan
IPC分类号： H04B10/27
摘要： Embodiments of the present invention disclose a data center. The data center includes a wavelength source, a first optical component, a first communications device, and a second communications device. The first optical component includes a first port, a second port, and a third port. The first communications device includes at least one of a server and a switch. The second communications device includes at least one of a server and a switch. The wavelength source is configured to generate an N-wavelength laser beam, where N is an integer greater than or equal to 1. The first port of the first optical component is configured to receive an M-wavelength laser beam from the wavelength source, where M is an integer greater than or equal to 1 and less than or equal to N. The second port of the first optical component is configured to send the M-wavelength laser beam to the first communications device, where the M-wavelength laser beam includes at least a first-wavelength laser beam. The second port of the first optical component is further configured to receive a modulated first optical signal from the first communications device, where the modulated first optical signal is a modulated optical signal obtained after the first communications device modulates a service signal onto the first-wavelength laser beam. The third port of the first optical component is configured to send the modulated first optical signal to the second communications device.

4. 发明授权

EP3247078B1 SERVICE EXCHANGE SYSTEM AND SERVICE EXCHANGE METHOD 有权
公开(公告)号：EP3247078B1
公开(公告)日：2019-03-27
申请号：EP15880943.4
申请日：2015-10-13
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Buyun , XIAO, Xinhua , CHANG, Tianhai
IPC分类号： H04L12/801 , H04Q11/00

5. 发明公开

EP2388964A1 METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING SERVICE DATA 审中-公开
标题翻译： VERFAHREN UND VORRICHTUNG ZUMÜBERTRAGENUND EMPFANGEN VON SERVICE-DATEN
公开(公告)号：EP2388964A1
公开(公告)日：2011-11-23
申请号：EP10758060.7
申请日：2010-04-01
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Kun , ZHOU, Jianlin , CAO, Yang , HU, Xing , CAI, Jun , XIAO, Xinhua
IPC分类号： H04L12/56
CPC分类号： H04J3/1652 , H04L49/25
摘要： In the field of communications technologies, a method and device for sending and receiving service data provided by embodiments of the present invention may be capable of solving the problem that a network system cannot bear a service of arbitrary rate. The method for sending service data includes: receiving at least one flexible data channel to which service data is adapted; searching for an address of a destination port corresponding to a source port of the at least one flexible data channel; scheduling the at least one flexible data channel to an Optical Channel Data Unit-k (ODUk) frame in the corresponding destination port respectively according to channel indication information corresponding to the at least one flexible data channel; and forwarding the ODUk frame to the destination address through an Optical Transport Network (OTN) line after completing construction of the ODUk frame. The embodiments of the present invention are applicable to optical network communications.
摘要翻译：在通信技术领域中，本发明实施例提供的用于发送和接收业务数据的方法和装置可以解决网络系统不能承受任意速率业务的问题。用于发送服务数据的方法包括：接收适于服务数据的至少一个灵活数据信道; 搜索与所述至少一个灵活数据信道的源端口相对应的目的地端口的地址; 根据对应于所述至少一个灵活数据信道的信道指示信息，分别将所述至少一个灵活数据信道调度到对应目的端口中的光信道数据单元k（ODUk）帧; 并在完成ODUk帧的构建之后，通过光传送网（OTN）线路将ODUk帧转发到目的地址。本发明的实施例可应用于光网络通信。

6. 发明授权

EP3370430B1 OPTICAL SIGNAL PROCESSING METHOD AND OPTICAL CROSS-CONNECT DEVICE 有权
公开(公告)号：EP3370430B1
公开(公告)日：2020-06-03
申请号：EP16867947.0
申请日：2016-11-22
申请人： Huawei Technologies Co., Ltd.
发明人： JIANG, Chendi , XIAO, Xinhua
IPC分类号： H04Q11/00 , H04B10/032 , H01Q3/36

7. 发明公开

EP3531614A1 ENCRYPTION AND DECRYPTION METHOD AND DEVICE 审中-公开
公开(公告)号：EP3531614A1
公开(公告)日：2019-08-28
申请号：EP17870453.2
申请日：2017-05-24
申请人： Huawei Technologies Co., Ltd.
发明人： SU, Changzheng , LU, Jiansong , XIAO, Xinhua
IPC分类号： H04L9/08
摘要： An encryption method and device and a decryption method and device are provided, to resolve a problem that unconditional security of encrypted service data cannot be ensured in an existing service data encryption process and encryption processing of highly confidential service data cannot be implemented. The encryption device in the present invention obtains a quantum key and to-be-encrypted service data; encrypts the to-be-encrypted service data by using the quantum key, to generate a ciphertext; inserts the ciphertext into a specified byte in an OTN overhead byte, and performs encapsulation to obtain an OTN frame including the ciphertext; and converts the OTN frame from an electrical signal to an optical signal, and transmits the optical signal to a second OTN device. The service data is encrypted by using the quantum key, and therefore unconditional security of service data transmission can be ensured. In addition, the ciphertext is inserted into the specified byte in the OTN overhead byte, and therefore encryption processing of a highly confidential service can be implemented.

8. 发明公开

EP3247078A1 SERVICE EXCHANGE SYSTEM AND SERVICE EXCHANGE METHOD 有权
标题翻译：服务交换系统和服务交换方法
公开(公告)号：EP3247078A1
公开(公告)日：2017-11-22
申请号：EP15880943.4
申请日：2015-10-13
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Buyun , XIAO, Xinhua , CHANG, Tianhai
IPC分类号： H04L12/801
CPC分类号： H04Q11/0067 , H04L41/0896 , H04L41/50 , H04L47/805 , H04L49/15 , H04Q11/0005 , H04Q11/0071 , H04Q2011/0039 , H04Q2011/005 , H04Q2011/0084 , H04Q2011/0088
摘要： Embodiments of the present invention disclose a service switching system and a service switching method. The system includes at least two service processing subracks and at least one optical cross-connect subrack. Each service processing subrack is connected to each optical cross-connect subrack by using an optical fiber. Each service processing subrack is configured to: perform service switching for an externally inputted service data electrical signal , convert the service-switched service data electrical signal into an optical signal, and send the optical signal to one or more optical cross-connect subracks; and/or receive a service data optical signal that comes from one or more optical cross-connect subracks, convert the optical signal into an electrical signal, perform service switching, and output the service-switched service data electrical signal. Each optical cross-connect subrack is configured to: receive a service data optical signal that comes from one or more service processing subracks, perform optical cross-connection for the received optical signal, and output the cross-connected optical signal to the one or more service processing subracks. Applying the embodiments of the present invention can reduce interconnection costs of a service switching system.
摘要翻译：本发明实施例公开了一种业务交换系统和业务切换方法。该系统包括至少两个业务处理子架和至少一个光交叉子架。每个业务处理框通过光纤连接到每个光交叉框。每个业务处理子架，用于对外部输入的业务数据电信号进行业务切换，将业务交换业务数据电信号转换为光信号，并发送给一个或多个光交叉子架; 和/或接收来自一个或多个光交叉子架的业务数据光信号，将光信号转换为电信号，进行业务切换，输出业务交换业务数据电信号。每个光交叉连接子架，用于接收来自一个或多个业务处理子架的业务数据光信号，对接收到的光信号进行光交叉连接，并将交叉连接的光信号输出到一个或多个服务处理子架。应用本发明的实施例可以减少业务交换系统的互连成本。

9. 发明公开

EP2916496A1 DATA PROCESSING METHOD, COMMUNICATION SINGLE BOARD AND DEVICE 有权
标题翻译： DORNVERARBEITUNGSVERFAHREN，KOMMUNIKATIONSEINZELPLATINE UND VORRICHTUNG
公开(公告)号：EP2916496A1
公开(公告)日：2015-09-09
申请号：EP12889701.4
申请日：2012-12-05
申请人： Huawei Technologies Co., Ltd.
发明人： XIAO, Xinhua , CHEN, Yujie , TAN, Jingxin
IPC分类号： H04L12/64 , H04L12/939 , H04Q11/04
CPC分类号： H04Q11/0062 , H04J3/1658 , H04J2203/0085 , H04Q11/0003 , H04Q2011/0033 , H04Q2011/0073 , H04Q2213/1301
摘要： Embodiments of the present invention provide a data processing method, a communications board and a device, which relate to the field of communications technologies and can reduce a transmission delay of a TDM service. The method includes: acquiring, by a first communications board, an optical channel data unit ODU data flow; performing, by the first communications board, slicing processing on the ODU data flow according to a fixed frame frequency, so as to obtain various slices, where each slice includes a section of continuous ODU data in the ODU data flow; separately encapsulating, by the first communications board, each slice into an Ethernet frame; and sending, by the first communications board, each Ethernet frame to a time division multiplexing TDM service switching module in an Ethernet switching chip, so that the TDM service switching module sends each Ethernet frame to a second communications board to which a destination MAC address carried in the Ethernet frame directs.
摘要翻译：本发明的实施例提供了一种与通信技术领域相关的数据处理方法，通信板和设备，并且可以减少TDM业务的传输延迟。该方法包括：由第一通信板获取光信道数据单元ODU数据流; 通过第一通信板根据固定帧频执行ODU数据流的分片处理，以获得各个切片，其中每个切片在ODU数据流中包括一段连续的ODU数据; 由第一通信板将每个片单独地封装成以太网帧; 并且由第一通信板将每个以太网帧发送到以太网交换芯片中的时分复用TDM业务交换模块，使得TDM业务交换模块将每个以太网帧发送到携带目的MAC地址的第二通信板在以太网帧中指示。

10. 发明公开

EP4319186A1 ELECTRICAL SWITCHING CLUSTER SYSTEM 审中-实审
公开(公告)号：EP4319186A1
公开(公告)日：2024-02-07
申请号：EP22794586.2
申请日：2022-04-12
申请人： Huawei Technologies Co., Ltd.
发明人： XIANG, Hui , XIAO, Xinhua , ZHANG, Chunhui
IPC分类号： H04Q11/00
摘要： This application discloses an electrical switching cluster system, and relates to the communication field, to reduce a transmission delay of the electrical switching cluster system. The electrical switching cluster system includes a plurality of input nodes, a plurality of intermediate nodes, and a plurality of output nodes. The input node includes a first electrical switching module and a plurality of colored optics sending modules, the first electrical switching module performs electrical switching on a plurality of electrical signals to obtain a plurality of groups of first electrical signals, and the colored optics sending module converts one group of first electrical signals into a multi-wavelength first optical signal. The intermediate node demultiplexes a plurality of first optical signals to obtain a plurality of groups of second optical signals, and multiplexes optical signals of different wavelengths in the plurality of groups of second optical signals to obtain a plurality of multi-wavelength third optical signals. The output node includes a second electrical switching module and a plurality of colored optics receiving modules, the colored optics receiving module converts one third optical signal into one group of second electrical signals, and the second electrical switching module performs electrical switching on a plurality of groups of second electrical signals to output the plurality of groups of second electrical signals through any output port.

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