公开(公告)号：US10594568B2

公开(公告)日：2020-03-17

申请号：US16129885

申请日：2018-09-13

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Jian Zhang ,  Jiaoren Wu ,  Hao Jiang ,  Yongxin Cui ,  Ning Liu

IPC: H04L12/24 ,  H04W24/08 ,  H04L29/08 ,  H04L5/00 ,  H04L12/26

Abstract: A method for measuring a data transmission speed, applied to a server side, is provided. The method includes: updating RTTs within a current sliding period upon receiving an ACK message from a client device; calculating a maximum RTT, a minimum RTT and an average RTT within the current sliding period; obtaining an amount of data in the latest RTT; calculating a minimum speed, a maximum speed and an average speed respectively, according to the amount of data in the latest RTT, and the maximum RTT, the minimum RTT and the average RTT within the current sliding period; calculating speed change gradient information according to the minimum speed, the maximum speed and the average speed; and calculating a speed prediction value according to the speed change gradient information. An apparatus for measuring a data transmission speed, a server-side device and a computer readable medium are provided.

公开(公告)号：US20190191014A1

公开(公告)日：2019-06-20

申请号：US16129447

申请日：2018-09-12

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Jian Zhang ,  Jiaoren Wu ,  Hao Jiang ,  Ning Liu ,  Yongxin Cui

IPC: H04L29/06 ,  H04L29/08 ,  H04L12/66

CPC classification number: H04L69/163 ,  H04L12/66 ,  H04L67/1095 ,  H04L67/141 ,  H04L67/28 ,  H04L67/42 ,  H04L69/08

Abstract: A data transmission method includes: establishing, by a server, a connection with a client according to a transmission control protocol (TCP) through a gateway with a synchronous proxy mechanism; acquiring, by the server, sequence number conversion information and converting a first TCP sequence number of a first data packet to be sent to the client according to the sequence number conversion information, so that the first TCP sequence number is matched, by the server, with a first acknowledgment number of the second data packet sent by the client; and sending, by the server, the first data packet, for which the first TCP sequence number has been converted, to the client directly. A server, a gateway, and a computer-readable medium are also disclosed.

公开(公告)号：US20190173763A1

公开(公告)日：2019-06-06

申请号：US16129885

申请日：2018-09-13

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Jian Zhang ,  Jiaoren Wu ,  Hao Jiang ,  Yongxin Cui ,  Ning Liu

IPC: H04L12/24 ,  H04L5/00 ,  H04W24/08

CPC classification number: H04L41/142 ,  H04L5/0055 ,  H04L41/147 ,  H04L43/0847 ,  H04L43/0864 ,  H04L69/326 ,  H04W24/08

Abstract: A method for measuring a data transmission speed, applied to a server side, is provided. The method includes: updating RTTs within a current sliding period upon receiving an ACK message from a client device; calculating a maximum RTT, a minimum RTT and an average RTT within the current sliding period; obtaining an amount of data in the latest RTT; calculating a minimum speed, a maximum speed and an average speed respectively, according to the amount of data in the latest RTT, and the maximum RTT, the minimum RTT and the average RTT within the current sliding period; calculating speed change gradient information according to the minimum speed, the maximum speed and the average speed; and calculating a speed prediction value according to the speed change gradient information. An apparatus for measuring a data transmission speed, a server-side device and a computer readable medium are provided.