公开(公告)号：US11997736B2

公开(公告)日：2024-05-28

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: H04L69/14 ,  H04L43/0852 ,  H04W76/16 ,  H04W88/06 ,  H04W80/06 ,  H04W84/12

CPC classification number: H04W76/16 ,  H04L43/0852 ,  H04L69/14 ,  H04W80/06 ,  H04W84/12 ,  H04W88/06

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：US11477130B2

公开(公告)日：2022-10-18

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: H04L47/34 ,  H04L1/00 ,  H04L43/106

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：US11425785B2

公开(公告)日：2022-08-23

申请号：US16847175

申请日：2020-04-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianjian Zhu ,  Rahul Arvind Jadhav ,  Neng Yang ,  Zhen Cao ,  Fanzhao Wang

IPC: H04W84/12 ,  H04W36/14 ,  H04W36/30 ,  H04W48/18 ,  H04W88/06 ,  H04W92/02

Abstract: A network switching method includes transmitting, by an electronic device, data using a wireless local area network, when a data transmission delay of the wireless local area network is greater than a first threshold, switching, by the electronic device, to transmitting data using both the wireless local area network and a mobile network, and when the electronic device transmits data using both the wireless local area network and the mobile network, if the data transmission delay of the wireless local area network is greater than a second threshold, switching, by the electronic device, to transmitting data using the mobile network, where the first threshold is less than the second threshold.

公开(公告)号：US20210203578A1

公开(公告)日：2021-07-01

申请号：US17199773

申请日：2021-03-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tong Li ,  Kai Zheng ,  Shengjun Chen ,  Junsen Chen ,  Fanzhao Wang

IPC: H04L12/26 ,  H04L1/18

Abstract: A round-trip time (RTT) evaluation system includes sending, by a first device, a plurality of packets to a second device on a path, where each of the packets carries a timestamp indicating a sending time of a corresponding packet, determining, by the second device based on a statistical value of one-way delays (OWDs) of the packets, timestamps carried in the packets, sending, by the second device, an acknowledgements (ACKs) to the first device, where the ACKs include the timestamps and ACK time information, and determining, by the first device, measurement values of an RTT of the path based on the timestamps, the ACK time information, and times when the ACKs are received.