公开(公告)号：US20200099981A1

公开(公告)日：2020-03-26

申请号：US16695652

申请日：2019-11-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanfang Zhang ,  Jian Cheng ,  Yan Bai ,  Liang Zhang

IPC: H04N21/442 ,  H04N21/44 ,  H04N21/643 ,  H04L1/00 ,  H04L12/26 ,  H04L1/08

Abstract: A fault detection method, a monitoring device, and a network device for accurately performing fault detection on a video service are provided. The method includes: obtaining a video quality parameter of a monitored video stream, where the video quality parameter is determined according to a packet loss recovery method of the monitored video stream, the video quality parameter includes an effective packet loss factor, and the effective packet loss factor is used to indicate effectiveness of network packet loss recovery performed by using the packet loss recovery method of the monitored video stream; and performing fault detection based on the video quality parameter of the monitored video stream.

公开(公告)号：US12101238B2

公开(公告)日：2024-09-24

申请号：US16730465

申请日：2019-12-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Cheng ,  Yanfang Zhang ,  Yan Bai ,  Liang Zhang

IPC: H04L43/08 ,  H04L1/08 ,  H04L5/00 ,  H04L69/22 ,  H04L69/326

CPC classification number: H04L43/08 ,  H04L1/08 ,  H04L5/0055 ,  H04L69/22 ,  H04L69/326

Abstract: A method for implementing transmission performance detection includes: after successively receiving data packets whose sequence numbers are N1 and N2, determining, by a detection apparatus, that N2 is greater than N1 and that N1 and N2 are inconsecutive; after receiving the data packet whose sequence number is N2, receiving a data packet whose sequence number is M1; and when determining N1 =RTT, determining that the data packet whose sequence number is M1 is a retransmitted packet corresponding to an upstream packet loss, where T1 is a time for receiving the data packet whose sequence number is N2, T2 is a time for receiving the data packet whose sequence number is M1.

公开(公告)号：US11968422B2

公开(公告)日：2024-04-23

申请号：US16695652

申请日：2019-11-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanfang Zhang ,  Jian Cheng ,  Yan Bai ,  Liang Zhang

IPC: H04N21/234 ,  H04L1/00 ,  H04L1/08 ,  H04L43/0829 ,  H04N21/2343 ,  H04N21/236 ,  H04N21/2365 ,  H04N21/238 ,  H04N21/24 ,  H04N21/434 ,  H04N21/438 ,  H04N21/44 ,  H04N21/442 ,  H04N21/4425 ,  H04N21/6375 ,  H04N21/643 ,  H04N21/647

CPC classification number: H04N21/44209 ,  H04L1/0045 ,  H04L1/08 ,  H04L43/0829 ,  H04N21/44 ,  H04N21/64322

Abstract: A fault detection method includes: obtaining a video quality parameter of a monitored video stream, where the video quality parameter is determined according to a packet loss recovery method of the monitored video stream, the video quality parameter includes an effective packet loss factor, and the effective packet loss factor is used to indicate effectiveness of network packet loss recovery performed by using the packet loss recovery method of the monitored video stream; and performing fault detection based on the video quality parameter of the monitored video stream.