公开(公告)号：US20200259748A1

公开(公告)日：2020-08-13

申请号：US16858920

申请日：2020-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tong LI ,  Ke XU ,  Jing ZUO ,  Fanzhao WANG ,  Kai ZHENG

IPC: H04L12/803 ,  H04L12/911 ,  H04L12/707 ,  H04L12/721

Abstract: A link detection technology. In a link detection method, when a target event occurs on paths, in a plurality of paths, whose quantity exceeds a preset quantity, whether the paths on which the target event occurs share a bottleneck link is detected, and congestion control is performed. It can be learned that in the technical solution provided in the embodiments of this application, the target event is a trigger, and shared bottleneck detection is performed after the quantity of the paths on which the target event occurs exceeds the preset quantity. This implements purposeful link detection, reduces system overheads, and brings a fast convergence speed.

公开(公告)号：US20190159064A1

公开(公告)日：2019-05-23

申请号：US16251979

申请日：2019-01-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fanzhao WANG ,  Rujie Chen ,  Kai Zheng

IPC: H04W28/06 ,  H04W28/02 ,  H04L12/841 ,  H04L1/18 ,  H04L12/801 ,  H04L5/00

Abstract: The present invention provides a data transmission method. In the method, according to a pre-obtained network status variable and a pre-obtained transmission success rate, a transmit end obtains a quantity of redundant data packets that need to be transmitted for a data packet. The transmit end also obtains a redundant data packet scheduling method according to the quantity of redundant data packets. Then the transmit end send a redundant data packet according to the redundant data packet scheduling method.

公开(公告)号：US20240236196A1

公开(公告)日：2024-07-11

申请号：US18616541

申请日：2024-03-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian HE ,  Fanzhao WANG ,  Jiao KANG ,  Lingling TANG ,  Kai ZHENG

IPC: H04L67/147 ,  H04L69/164

CPC classification number: H04L67/147 ,  H04L69/164

Abstract: This application discloses a data transmission method and a device. The method includes: A sender endpiont constructes n streams through an interface provided by a QUIC protocol, and sets attribute information of the streams (or sets different attribute information for different data blocks in a same stream). The sender endpiont transfers the attribute information of the streams to a first network node by using a first extended frame (or transfers the attribute information of the different data blocks in the same stream by using a second extended frame). The first or second extended frame is a frame obtained by performing protocol extension on the QUIC protocol. After receiving the first or second extended frame, the first network node determines, according to a sending policy of the first network node, routing, caching, and distribution of a target data stream, and continues to deliver the attribute information.

公开(公告)号：US20210067457A1

公开(公告)日：2021-03-04

申请号：US17097794

申请日：2020-11-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fanzhao WANG ,  Kai ZHENG ,  Jian HE ,  Hao WANG

IPC: H04L12/801 ,  H04L12/26 ,  H04L1/00

Abstract: This application describes transmission control methods and devices. One method comprises: sending, by a first device to a second device, first control signaling that instructs the second communications device to send a first group of data packets, the first control signaling comprises a first packet sequence number, a first packet sequence number range, and a first transmission time interval, the first group of data packets correspond to sequence numbers within the first packet sequence number range starting from the first packet sequence number, and the first transmission time interval indicates a time interval for sending data packets of the first group of data packets; and receiving, by the first device from the second device, at least one data packet in the first group of data packets.

公开(公告)号：US20220094748A1

公开(公告)日：2022-03-24

申请号：US17418689

申请日：2019-11-30

Applicant: Huawei Technologies Co., Ltd. ,  Peking University

Inventor： Hao WANG ,  Songping YAO ,  Chenren XU ,  Fanzhao WANG ,  Xingmin GUO ,  Xiangli LI ,  Zhiyu CHEN

IPC: H04L67/141 ,  H04L43/0852 ,  H04L69/14 ,  H04W76/11 ,  H04W76/16

Abstract: A connection establishment method includes a terminal device obtaining historical data of a multipath transmission control protocol (MPTCP) connection established between the terminal device and an application server. The historical data includes a data transmission delay of a transmission control protocol (TCP) connection corresponding to a Wi-Fi network and a data transmission delay of a TCP connection corresponding to a cellular network. The terminal device determines, based on the historical data, that the data transmission delay of the TCP connection corresponding to the cellular network is less than or equal to the data transmission delay of the TCP connection corresponding to the Wi-Fi network, and establishes a first TCP connection to the application server through an interface of the cellular network; and after the first TCP connection is successfully established, the terminal device establishes a second TCP connection to the application server through an interface of the Wi-Fi network.

公开(公告)号：US20210274420A1

公开(公告)日：2021-09-02

申请号：US17262638

申请日：2018-10-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hao WANG ,  Fanzhao WANG ,  Jianfeng QI ,  Shuo CHEN ,  Xingmin GUO

IPC: H04W40/12 ,  H04L12/707 ,  H04L29/06

Abstract: This application provides a data transmission method and an electronic device. The method includes: establishing, by an electronic device, a multipath transmission control protocol MPTCP connection to a first application server, where the MPTCP connection includes a first TCP connection and a second TCP connection, and a data transmission delay of the first TCP connection is less than a data transmission delay of the second TCP connection; and receiving, by the electronic device, indication information from the first application server, where the indication information includes a type identifier used to indicate a type of a data stream sent by the first application server; receiving, by the electronic device preferentially by using the first TCP connection or the second TCP connection, the data stream from the first application server according to the indication information.

公开(公告)号：US20200259738A1

公开(公告)日：2020-08-13

申请号：US16859534

申请日：2020-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fanzhao WANG ,  Wei LIU ,  Kai ZHENG ,  Weihua LI ,  Jun YANG

IPC: H04L12/709 ,  H04L29/06 ,  H04L12/761

Abstract: Based on this application, one or more parameters for a multipath connection in a redundant transmission mode that are used to represent path characteristics are measured in the redundant transmission mode, and the one or more parameters are compared with a parameter that is measured in a multipath transmission mode and that is used to represent a path characteristic of an aggregated path of the connection at this time.