公开(公告)号：US12068952B2

公开(公告)日：2024-08-20

申请号：US17870678

申请日：2022-07-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianlong Luo ,  Yu Zheng ,  Wei Chen

IPC: H04L45/655 ,  H04L45/036 ,  H04W40/02

CPC classification number: H04L45/655 ,  H04L45/036 ,  H04W40/02

Abstract: Embodiments of this application relate to the field of communication technologies, and provide a routing information publishing method. The method includes: An edge transport device connected to a first edge device in a first network domain receives, based on a control plane protocol message, first routing information that is from a controller and that includes an address of a second edge device in a second network domain and a destination address of the second network domain, and sends the first routing information to the first edge device, so that the first edge device generates, based on the first routing information, a forwarding table that is of the first edge device and that is used to indicate a forwarding relationship between the first network domain and the second network domain.

公开(公告)号：US20230232139A1

公开(公告)日：2023-07-20

申请号：US18189283

申请日：2023-03-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xianlong Luo ,  Gang Xie ,  Hao Li

IPC: H04Q11/00

CPC classification number: H04Q11/0066 ,  H04Q2011/0075 ,  H04Q2011/0043 ,  H04Q2011/0009

Abstract: Embodiments of this application provide a service protection method, including: A first node determines that a fault occurs on a first working path; the first node generates a bandwidth activation message based on the fault, where the bandwidth activation message indicates a third node to adjust a bandwidth of a service from a protection bandwidth to a target bandwidth, the protection bandwidth represents a pre-occupied bandwidth of a first protection path before transmission of the service, and the target bandwidth represents an actual occupied bandwidth for transmission of the service; and the first node sends the bandwidth activation message on the first protection path.

公开(公告)号：US20230013049A1

公开(公告)日：2023-01-19

申请号：US17950703

申请日：2022-09-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xianlong Luo ,  Chunhui Chen ,  Minghui Fan

IPC: H04B10/071 ,  G06F17/18

Abstract: This application discloses a same-cable probability detection method. The method includes: obtaining a first characteristic parameter of a first optical signal and a second characteristic parameter of a second optical signal, where the first optical signal is a signal transmitted in a first optical fiber, the second optical signal is a signal transmitted in a second optical fiber, the first characteristic parameter is generated after the first optical signal is affected by a vibration of the first optical fiber, and the second characteristic parameter is generated after the second optical signal is affected by a vibration of the second optical fiber; and obtaining, based on the first characteristic parameter and the second characteristic parameter, a probability that at least one optical cable segment of the first optical fiber and at least one optical cable segment of the second optical fiber include a same-cable segment.

公开(公告)号：US12244338B2

公开(公告)日：2025-03-04

申请号：US17950703

申请日：2022-09-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xianlong Luo ,  Chunhui Chen ,  Minghui Fan

IPC: H04B10/07 ,  G06F17/18 ,  H04B10/071

Abstract: This application discloses a same-cable probability detection method. The method includes: obtaining a first characteristic parameter of a first optical signal and a second characteristic parameter of a second optical signal, where the first optical signal is a signal transmitted in a first optical fiber, the second optical signal is a signal transmitted in a second optical fiber, the first characteristic parameter is generated after the first optical signal is affected by a vibration of the first optical fiber, and the second characteristic parameter is generated after the second optical signal is affected by a vibration of the second optical fiber; and obtaining, based on the first characteristic parameter and the second characteristic parameter, a probability that at least one optical cable segment of the first optical fiber and at least one optical cable segment of the second optical fiber include a same-cable segment.

公开(公告)号：US12028450B2

公开(公告)日：2024-07-02

申请号：US16402525

申请日：2019-05-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changzheng Su ,  Liangliang Lu ,  Su Hu ,  Xianlong Luo

IPC: H04L9/08

CPC classification number: H04L9/0855 ,  H04L9/08 ,  H04L9/0838

Abstract: Embodiments of this application relate to the field of communications technologies. The embodiments of this application are applicable to a centralized management and control network. A centralized controller obtains Z service requests, globally determines, based on an identifier of a source service node and an identifier of a destination service node that are corresponding to each of the Z service requests, a quantum key consumption parameter, and topology information of key nodes in the centralized management and control network, globally optimal key relay instructions corresponding to G service requests, and further delivers the key relay instructions corresponding to the G service requests to key nodes corresponding to the key relay instructions, so that the key nodes perform quantum key relay based on the key relay instructions, to generate a shared quantum key between the source key node and the destination key node.

公开(公告)号：US11848698B2

公开(公告)日：2023-12-19

申请号：US17733199

申请日：2022-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Gang Xie ,  Hao Li ,  Xianlong Luo ,  Min Zhao ,  Haomian Zheng

IPC: H04B10/032 ,  H04B10/038 ,  H04J14/02

CPC classification number: H04B10/032 ,  H04B10/038 ,  H04J14/0287

Abstract: A path protection method includes receiving, by a source node of a first path, a path event notify message from a first node on the first path. The path event notify message includes indication information that the first path is predicted to fail. The path protection method further includes obtaining, by the source node, information about a predicted protection path. The information about the predicted protection path includes resource information of a second path useable to protect a service on the first path. The first path and the second path include the source node and a same sink node. The path protection method further includes storing, by the source node, the resource information of the second path.

公开(公告)号：US20190260581A1

公开(公告)日：2019-08-22

申请号：US16402525

申请日：2019-05-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changzheng Su ,  Liangliang Lu ,  Su Hu ,  Xianlong Luo

IPC: H04L9/08

Abstract: Embodiments of this application relate to the field of communications technologies. The embodiments of this application are applicable to a centralized management and control network. A centralized controller obtains Z service requests, globally determines, based on an identifier of a source service node and an identifier of a destination service node that are corresponding to each of the Z service requests, a quantum key consumption parameter, and topology information of key nodes in the centralized management and control network, globally optimal key relay instructions corresponding to G service requests, and further delivers the key relay instructions corresponding to the G service requests to key nodes corresponding to the key relay instructions, so that the key nodes perform quantum key relay based on the key relay instructions, to generate a shared quantum key between the source key node and the destination key node.