公开(公告)号：US20220365895A1

公开(公告)日：2022-11-17

申请号：US17870703

申请日：2022-07-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei WAN ,  Pengxin BAO

IPC: G06F13/40

Abstract: A PCIe-based data transmission method and an apparatus are provided. The method includes the following: A first node obtains and sends a first TLP; and a switch receives the first TLP, and sends a second TLP to a second node. The first TLP includes a first TLP header and a first data payload, the second TLP includes a second TLP header and the first data payload, the first TLP header and the second TLP header are used to indicate a data type of the first data payload, and the data type of the first data payload includes at least one of audio, an image, control, data stream write, or security. The second node obtains the first data payload based on the data type of the first data payload. This helps reduce communication complexity in a high-speed communication scenario.

公开(公告)号：US20220358070A1

公开(公告)日：2022-11-10

申请号：US17870524

申请日：2022-07-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei WAN ,  Pengxin BAO

IPC: G06F13/40 ,  H04L69/22

Abstract: A PCIe-based data transmission method and an apparatus are provided. The method includes the following: A first node obtains and sends a first TLP; and a switch receives the first TLP, and sends a second TLP to a second node. The first TLP includes a first TLP header and a first data payload, the second TLP includes a second TLP header and the first data payload, the first TLP header and the second TLP header are used to indicate a data type of the first data payload, and the data type of the first data payload includes at least one of audio, an image, control, data stream write, or security. The second node parses the first data payload based on the data type of the first data payload. This helps reduce communication complexity in a high-speed communication scenario.

公开(公告)号：US20230224349A1

公开(公告)日：2023-07-13

申请号：US18175166

申请日：2023-02-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Pengxin BAO ,  Xuehuan WANG ,  Xingxin ZHANG

IPC: H04L65/75 ,  H04N7/18

CPC classification number: H04L65/762 ,  H04N7/183

Abstract: This disclosure discloses image transmission methods and apparatuses. In an implementation, a method performed by an apparatus includes generating a first data packet, wherein the first data packet comprises a portion of content of a frame of an image and first information indicating frame synchronization and line synchronization and sending the first data packet to a second communications apparatus.

公开(公告)号：US20230021703A1

公开(公告)日：2023-01-26

申请号：US17959541

申请日：2022-10-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Pengxin BAO ,  Xingxin ZHANG ,  Chao LI ,  Xuehuan WANG

IPC: G06F13/42

Abstract: A data transmission method according to an I2C protocol and a transmission apparatus includes: a first transmission chip obtains I2C data from a first device, wherein the I2C data is data sent by the first device to a second device. The first transmission chip sends first feedback information to the first device, wherein the first feedback information is used to indicate whether the I2C data is successfully received. The first transmission chip forwards the I2C data to a second transmission chip corresponding to the second device. The first transmission chip receives second feedback information from the second transmission chip, and the second feedback information is used to indicate whether the I2C data is successfully received. The first transmission chip stores the second feedback information in a first storage space that is storage space of the first transmission chip.

公开(公告)号：US20220405229A1

公开(公告)日：2022-12-22

申请号：US17895769

申请日：2022-08-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei WAN ,  Jiezuo ZHU ,  Xuehuan WANG ,  Pengxin BAO

IPC: G06F13/42 ,  G06F13/40 ,  G06F13/16 ,  G06F12/02

Abstract: A PCIe-based communications method includes: a root complex writes identity information of a second node into a first node and writes routing table information into a third node, where the first node is a source node of first data, the second node is a destination node of the first data, and the third node is a node through which the first data arrives at the second node.

公开(公告)号：US20220358075A1

公开(公告)日：2022-11-10

申请号：US17870535

申请日：2022-07-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei WAN ,  Pengxin BAO

IPC: G06F13/42 ,  H04L45/74

Abstract: This application discloses a peripheral component interconnect express (PCIe)-based data transmission method and apparatus. The method includes: A first node encapsulates data into a transaction layer packet (TLP) and then sends the TLP to a second node. The TLP includes a packet header and an extension header. The packet header includes a first field and a second field. The first field, the second field, and the extension header are used to indicate first encapsulation information. The first encapsulation information includes a data type of the data and at least one encapsulation parameter corresponding to the data type. In some embodiments, the first field, the second field, and the extension header are used to indicate the information required for transmitting the data.

公开(公告)号：US20230030135A1

公开(公告)日：2023-02-02

申请号：US17955173

申请日：2022-09-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chao LI ,  Xingxin ZHANG ,  Pengxin BAO ,  Xuehuan WANG

IPC: H04L7/04 ,  H04L7/00

Abstract: Embodiments of this application disclose a data processing method, which can be applied to a clock synchronization network system. The system can correct, based on a clock frequency error or a time error, a data timestamp of a data packet collected by the system in a time period in which there is no reference clock, so that a corrected system time of the data packet is consistent with a reference time. This improves accuracy of data record.

公开(公告)号：US20220334930A1

公开(公告)日：2022-10-20

申请号：US17857661

申请日：2022-07-05

Applicant: Huawei Technologies Co., LTD.

Inventor： CHAO LI ,  Xingxin ZHANG ,  Xuehuan WANG ,  Pengxin BAO

IPC: G06F11/16 ,  G06F1/12 ,  H04L7/00

Abstract: The present disclosure relates to clock switching methods, devices, and storage medium. In one example method, a slave clock device may monitor a working status of a master clock device, and sends first indication information when discovering that the master clock device is in a faulty state, so that a communications device synchronizes with a system clock of the communications device based on time information of the slave clock device.