公开(公告)号：US20190245762A1

公开(公告)日：2019-08-08

申请号：US16387981

申请日：2019-04-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haiqing LAN ,  Dongyu CHU

IPC: H04L12/26 ,  H04W24/08

CPC classification number: H04L43/067 ,  H04L25/0262 ,  H04L43/0894 ,  H04L47/10 ,  H04W24/08

Abstract: The present invention provides a detection method used for transmission bandwidth detection in multi-level transmission bandwidth issuance it detecting, by at least two transmission bandwidth detection units, a transmission bandwidth of a transmission link; where each transmission bandwidth assurance level in the multi-level transmission bandwidth assurance is corresponding to only one of the at least two transmission bandwidth detection units, and when the transmission link operates at a first transmission bandwidth assurance level a first transmission bandwidth detection unit corresponding to the first transmission bandwidth assurance level detects the transmission bandwidth of the transmission link.

公开(公告)号：US20170104654A1

公开(公告)日：2017-04-13

申请号：US15387289

申请日：2016-12-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haiqing LAN ,  Jinli YANG

IPC: H04L12/26

CPC classification number: H04L43/0835 ,  H04L27/2646 ,  H04L27/2666 ,  H04L43/0858 ,  H04L47/11 ,  H04L47/12 ,  H04L47/283

Abstract: A variation of a packet gap between packets sent from a source node and a packet gap between packets received by a destination node is determined; then an intensity of the packet gap variation is determined; and finally whether transmission congestion occurs between the source node and the destination node is determined according to the intensity of the packet gap variation. Therefore, accuracy of identifying a cause of a packet loss is improved, thereby avoiding impact of a transmission bit error.