公开(公告)号：US20240048407A1

公开(公告)日：2024-02-08

申请号：US18488216

申请日：2023-10-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Li

IPC: H04L12/437 ,  H04L67/12

CPC classification number: H04L12/437 ,  H04L67/12

Abstract: This application provides a network establishing method, an Ethernet system, and a vehicle. A network includes M backbone nodes. Each of the M backbone nodes includes a first backbone port and a second backbone port. The M backbone nodes form a ring network by using the first backbone ports and the second backbone ports. M is an integer greater than 2. The M backbone nodes include a first backbone node. The first backbone port of the first backbone node is in a forwarding state, and the second backbone port of the first backbone node is in a blocked state. Both the first backbone port and the second backbone port of another backbone node are in a forwarding state.

公开(公告)号：US20230396464A1

公开(公告)日：2023-12-07

申请号：US18455111

申请日：2023-08-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qichang Chen ,  Min Zha ,  Dongdong He

IPC: H04L12/437 ,  H04L67/12

CPC classification number: H04L12/437 ,  H04L67/12

Abstract: In a data transmission method, each ring network interface is associated with a ring identifier, and a ring-incoming packet carries a ring identifier of a ring network interface through which the packet is first forwarded. When a node in a ring network detects a link fault in a process of transmitting a packet, the node determines, with reference to a ring identifier and a wrapping identifier carried in the packet, to perform wrapping or discard the packet. According to the method, two sub-ring networks of a dual-ring coupled ring network can be allowed to separately implement one time of wrapping.

公开(公告)号：US11805065B2

公开(公告)日：2023-10-31

申请号：US16287339

申请日：2019-02-27

Applicant: Intel Corporation

Inventor： Jasvinder Singh ,  John J. Browne ,  Tomasz Kantecki ,  Chris Macnamara

IPC: H04W72/12 ,  H04L47/50 ,  H04L47/60 ,  H04L47/52 ,  H04L47/62 ,  H04L47/80 ,  H04L49/90 ,  H04L47/74 ,  H04L47/525 ,  H04L1/1867 ,  H04W72/1263 ,  H04L1/1829 ,  H04W52/02 ,  H04J3/08 ,  H04L12/437 ,  H04W52/26 ,  H04L41/5009 ,  H04L12/40

CPC classification number: H04L47/58 ,  H04L1/1854 ,  H04L1/1887 ,  H04L47/522 ,  H04L47/525 ,  H04L47/60 ,  H04L47/6215 ,  H04L47/74 ,  H04L47/805 ,  H04L47/808 ,  H04L49/9031 ,  H04W52/0216 ,  H04W72/12 ,  H04W72/1263 ,  H04J3/085 ,  H04L12/4015 ,  H04L12/437 ,  H04L41/5012 ,  H04W52/265

Abstract: Packets are differentiated based on their traffic class. A traffic class is allocated bandwidth for transmission. One or more core or thread can be allocated to process packets of a traffic class for transmission based on allocated bandwidth for that traffic class. If multiple traffic classes are allocated bandwidth, and a traffic class underutilizes allocated bandwidth or a traffic class is allocated insufficient bandwidth, then allocated bandwidth can be adjusted for a future transmission time slot. For example, a higher priority traffic class with excess bandwidth can share the excess bandwidth with a next highest priority traffic class for use to allocate packets for transmission for the same time slot. In the same or another example, bandwidth allocated to a traffic class depends on an extent of insufficient allocation or underutilization of allocated bandwidth such that a traffic class with insufficient allocated bandwidth in one or more prior time slot can be provided more bandwidth in a current time slot and a traffic class with underutilization of allocated bandwidth can be provided with less allocated bandwidth for a current time slot.

公开(公告)号：US11777869B2

公开(公告)日：2023-10-03

申请号：US16170366

申请日：2018-10-25

Applicant: Arm Limited

Inventor： Fergus Wilson MacGarry ,  Alex James Waugh ,  Andrew John Turner

IPC: H04B10/275 ,  H04L47/783 ,  H04L41/0896 ,  H04L47/30 ,  H04L41/0806 ,  H04J3/16 ,  H04J3/08 ,  H04B10/2575 ,  H04L12/437 ,  H04L49/102 ,  H04J3/14 ,  H04L47/10

CPC classification number: H04L47/783 ,  H04B10/25755 ,  H04B10/275 ,  H04J3/085 ,  H04J3/167 ,  H04L12/437 ,  H04L41/0806 ,  H04L41/0896 ,  H04L47/30 ,  H04L49/102 ,  H04J3/14 ,  H04L47/13

Abstract: A ring interconnect system comprises a plurality of nodes. Each node is connected to two other nodes to form a ring interconnect. Every pair of nodes is connected by an inter-node path for that pair of nodes distinct from the ring interconnect. Each of the nodes comprises a message buffer to buffer messages received from at least one device associated with the node. Each of the nodes also comprises activity level circuitry to transmit an activity indication, when a number of the messages in the message buffer is equal to or above a threshold, to each other node of the plurality of nodes via the respective inter-node paths. Each of the nodes also comprises arbitrator circuitry to receive the activity indications from each other node and from the activity level circuitry, and to allow ingress of a message from the message buffer onto the ring interconnect in dependence on the activity indications. Also provided is a method of operating a node of a ring interconnect system.

公开(公告)号：US11652664B2

公开(公告)日：2023-05-16

申请号：US17221807

申请日：2021-04-04

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Sivasankaran Nagarajan ,  Yasser Salim Sait ,  Venkatavaradhan Devarajan

IPC: H04L12/423 ,  H04L12/46 ,  H04L12/437 ,  H04L45/74 ,  H04L41/0604 ,  H04L12/42 ,  H04L101/622

CPC classification number: H04L12/423 ,  H04L12/437 ,  H04L12/4625 ,  H04L41/0627 ,  H04L45/74 ,  H04L2012/421 ,  H04L2101/622

Abstract: Examples disclosed herein relate to managing a second ring link failure in a multi-ring Ethernet network. In an example, an inter-connection network node in a multi-ring Ethernet network comprising a major ring and a sub-ring may propagate a signal failure (SF) event, received in response to a second ring link failure in the major ring, to one or more nodes in the sub-ring. In response to receiving the SF event, a Ring Protection Link (RPL) on the sub-ring may be unlocked to allow network traffic through the RPL and avoid loop formation on the multi-ring Ethernet network. The sub-ring may be moved to the ring protection switching state, including performing a filtering database (FDB) flush at every node on the multi-ring Ethernet network whereby all MAC addresses and related port associations for traffic forwarding are cleared from the FDB.

公开(公告)号：US11563642B2

公开(公告)日：2023-01-24

申请号：US17067463

申请日：2020-10-09

Applicant: Rockwell Collins, Inc.

Inventor： Patrick Gomez ,  Abdul A. Khan ,  Brian S. Rach ,  Charles Adams ,  Mitchell A. Riley ,  Max G. Taylor

IPC: H04L12/28 ,  H04L41/12 ,  H04W84/18 ,  H04L12/46 ,  H04L12/437 ,  H04L12/40

Abstract: A high availability aircraft network architecture incorporating smart points of presence (SPoP) is disclosed. In embodiments, the network architecture divides the aircraft into districts, or physical subdivisions. Each district includes one or more mission systems (MS) smart network access point (SNAP) devices for connecting MS components and devices located within its district to the MS network. Similarly, each district includes one or more air vehicle systems (AVS) SNAP devices for connecting AVS components and devices within the district to the AVS network. The AVS network may remain in a star or hub-and-spoke topology, while the MS network may be configured in a ring or mesh topology. Selected MS and AVS SNAP devices may be connected to each other via guarded network bridges to securely interconnect the MS and AVS networks.

公开(公告)号：US11563599B2

公开(公告)日：2023-01-24

申请号：US16621248

申请日：2018-07-03

Applicant: OMRON Corporation

Inventor： Shigenori Sawada

IPC: G05B9/03 ,  G05B19/05 ,  G05B19/418 ,  H04L12/40 ,  H04L12/437 ,  H04L41/0659 ,  H04L41/0663 ,  H04L43/045 ,  H04L43/12 ,  H04L67/12 ,  H04L69/00

Abstract: This control system is provided with a controller, a controller which is a loopback communication device, a first communication route, and a second communication route. The controller generates and transmits control frames to slave devices. The controller performs loopback communication of the control frames. In the first communication route, multiple slave devices are connected between the controller and the controller using communication cables. In the second communication route, the first controller and the second controller are connected over a communication cable.

公开(公告)号：US20220357477A1

公开(公告)日：2022-11-10

申请号：US17873244

申请日：2022-07-26

Applicant: SERCEL

Inventor： Nicolas FRADIN ,  Xavier BRUN

IPC: G01V1/38 ,  G01V1/20 ,  G01V1/22 ,  H04L12/437

Abstract: A method for automatically propagating a voltage along a marine seismic streamer, the method including detecting, at an ith concentrator of the streamer, a first voltage applied at a first high-voltage rail HV1; detecting, at the ith concentrator of the streamer, a second voltage applied at a second high-voltage rail HV2, the first and second high-voltage rails extend over the entire streamer; checking a predetermined condition at a first local controller of the ith concentrator; and closing a first switch SW1, which propagates the first high-voltage rail HV1, when the predetermined condition is satisfied.

公开(公告)号：US11479189B2

公开(公告)日：2022-10-25

申请号：US16271302

申请日：2019-02-08

Applicant: Tesla, Inc.

Inventor： Adnan Esmail ,  In Jae Chung ,  Lakshya Jain ,  Brijesh Tripathi

IPC: H04L12/437 ,  B60R16/023 ,  H04L12/42 ,  H04L45/00 ,  H04L12/40

Abstract: A wiring system for an automobile connecting a processor and a plurality of devices, using one or more backbone sections. The processor and devices are connected to one another to form a first loop and a second loop, such that data may be transmitted along the first loop and data may be transmitted along the second loop.

公开(公告)号：US20220274543A1

公开(公告)日：2022-09-01

申请号：US17746764

申请日：2022-05-17

Applicant: NEUTRON AUTOMOTIVE CONTROLS INC.

Inventor： Alexandre GOURARI ,  John Joseph WOJTKOWICZ

IPC: B60R16/023 ,  G06K9/62 ,  G08B21/18 ,  H04L12/437 ,  G06V20/56

Abstract: Reliability and responsiveness in vehicles are becoming more important as semi-automation and automation are becoming more prevalent. A redundant data network system is provided within a vehicle and includes a first node connected to a first sensor and a second node connected to a second sensor. A first data cable is connected between the first node and the second node, a second data cable is connected between the first node and an electronic control unit (ECU), and a third data cable connected between the second node and the ECU. Data from the first sensor and the second sensor is transmitted across the Ethernet network to reach the ECU. Data from these sensors is also compared and processed locally to improve reliability and to reduce processing load on the ECU.