公开(公告)号：US20230163958A1

公开(公告)日：2023-05-25

申请号：US18158890

申请日：2023-01-24

Applicant: Huawei Technologies Co., Ltd

Inventor： De Sheng ,  Zhonghua Hu ,  Shu Zhang ,  Jingyi Wang ,  Hao Zhang

IPC: H04L9/08

CPC classification number: H04L9/0838 ,  H04L9/085 ,  H04L9/0861 ,  H04L9/0891

Abstract: A pre-shared key (PSK) updating method is disclosed. A first communication apparatus stores a first PSK for processing, within an aging periodicity of the first PSK, a packet exchanged between the first communication apparatus and a second communication apparatus. The first communication apparatus may receive, within the aging periodicity of the first PSK, a first protocol packet that is sent by the second communication apparatus and includes a first PSK key material for generating a second PSK. The second PSK is for processing, within an aging periodicity of the second PSK, a packet exchanged between the first communication apparatus and the second communication apparatus.

公开(公告)号：US20170105138A1

公开(公告)日：2017-04-13

申请号：US15389234

申请日：2016-12-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Huang ,  Shu Zhang

IPC: H04W28/04 ,  H04L12/807 ,  H04L12/801

CPC classification number: H04W28/04 ,  H04L1/18 ,  H04L47/14 ,  H04L47/27 ,  H04L47/323 ,  H04L69/163 ,  H04W80/06

Abstract: Embodiments of the present invention relate to the field of communications technologies, and disclose a data transmission method and a device, to reduce a quantity of TCP-layer ACK packets transmitted on a radio air interface link between a first device and a second device, thereby reducing consumption of radio air interface link resources and improving transmission efficiency of radio service data. A specific solution is as follows: obtaining, by a first device, a TCP-layer ACK; and intercepting the TCP-layer ACK if a TCP-layer data packet corresponding to the TCP-layer ACK is a TCP-layer data packet that is obtained by the first device after the first device parses a link layer data packet received through a radio air interface link by the first device, and the TCP-layer ACK satisfies a preset condition. The present invention is applied to a data packet transmission process based on a TCP connection.

公开(公告)号：US10104578B2

公开(公告)日：2018-10-16

申请号：US15389234

申请日：2016-12-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Huang ,  Shu Zhang

IPC: H04L12/56 ,  H04W28/04 ,  H04L12/807 ,  H04W80/06 ,  H04L12/823 ,  H04L29/06 ,  H04L1/18 ,  H04L12/801

Abstract: Embodiments of the present invention relate to the field of communications technologies, and disclose a data transmission method and a device, to reduce a quantity of TCP-layer ACK packets transmitted on a radio air interface link between a first device and a second device, thereby reducing consumption of radio air interface link resources and improving transmission efficiency of radio service data. A specific solution is as follows: obtaining, by a first device, a TCP-layer ACK; and intercepting the TCP-layer ACK if a TCP-layer data packet corresponding to the TCP-layer ACK is a TCP-layer data packet that is obtained by the first device after the first device parses a link layer data packet received through a radio air interface link by the first device, and the TCP-layer ACK satisfies a preset condition. The present invention is applied to a data packet transmission process based on a TCP connection.

公开(公告)号：US10511535B2

公开(公告)日：2019-12-17

申请号：US15345022

申请日：2016-11-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Huang ,  Shu Zhang

IPC: H04L12/26 ,  H04L29/06 ,  H04L12/707 ,  H04L12/801 ,  H04L12/803 ,  H04L12/823 ,  H04W28/08

Abstract: Embodiments of the present invention provide a data transmission control node, a system, and a data transmission management method. A TCP subflow on which data offloading needs to be performed is selected according to a requirement for running the system. By changing an input item of an MPTCP congestion control algorithm, data on the selected TCP subflow can be migrated to another expected TCP subflow that belongs to a same MPTCP connection as the selected TCP subflow. By taking an additional measure to manage and control MPTCP data transmission on an access network side, a result of the data offloading on the TCP subflow can satisfy the expected requirement for running the system, so as to optimize system performance, and improve practicability of the MPTCP congestion control algorithm.

公开(公告)号：US10405246B2

公开(公告)日：2019-09-03

申请号：US15332820

申请日：2016-10-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Huang ,  Shu Zhang

IPC: H04W36/00 ,  H04L12/24 ,  H04W36/08 ,  H04L29/06 ,  H04W64/00 ,  H04W80/06

Abstract: The present disclosure provides a method and an apparatus for managing mobility of an MPTCP connection. The method includes: receiving a message that is sent by the source MPTCP agent and that carries an MPTCP context of UE; and saving the MPTCP context, and performing an MPTCP data transmission operation or an MPTCP management and control operation for the UE according to the saved MPTCP context. Embodiments of the present disclosure implement that, in a scenario in which both a source MPTCP agent and a destination MPTCP agent are deployed at a RAN side, when UE moves from a radio access device on which the source MPTCP agent is deployed to a radio access device on which the destination MPTCP agent is deployed, an MPTCP connection is maintained or the destination MPTCP agent can continue to perform a management and control operation.

公开(公告)号：US20170078206A1

公开(公告)日：2017-03-16

申请号：US15345022

申请日：2016-11-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Huang ,  Shu Zhang

IPC: H04L12/801 ,  H04L12/823 ,  H04L12/841 ,  H04L12/26 ,  H04L12/707 ,  H04L12/803

CPC classification number: H04L47/193 ,  H04L43/0841 ,  H04L45/24 ,  H04L47/122 ,  H04L47/32 ,  H04L69/14 ,  H04W28/08

Abstract: Embodiments of the present invention provide a data transmission control node, a system, and a data transmission management method. A TCP subflow on which data offloading needs to be performed is selected according to a requirement for running the system. By changing an input item of an MPTCP congestion control algorithm, data on the selected TCP subflow can be migrated to another expected TCP subflow that belongs to a same MPTCP connection as the selected TCP subflow. By taking an additional measure to manage and control MPTCP data transmission on an access network side, a result of the data offloading on the TCP subflow can satisfy the expected requirement for running the system, so as to optimize system performance, and improve practicability of the MPTCP congestion control algorithm.

Abstract translation: 本发明的实施例提供一种数据传输控制节点，系统和数据传输管理方法。 根据运行系统的要求，选择需要执行数据卸载的TCP子流。 通过改变MPTCP拥塞控制算法的输入项，所选择的TCP子流上的数据可以迁移到属于与所选TCP子流相同的MPTCP连接的另一预期TCP子流。 通过在接入网侧采取额外措施来管理和控制MPTCP数据传输，TCP子流上的数据卸载的结果可以满足运行系统的预期要求，从而优化系统性能，提高系统性能的实用性 MPTCP拥塞控制算法。