公开(公告)号：US20150195169A1

公开(公告)日：2015-07-09

申请号：US14667123

申请日：2015-03-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanjun Liu ,  Zuliang Wang ,  Hongming Liu

IPC: H04L12/26

CPC classification number: H04L43/0835 ,  H04L43/10

Abstract: A method, device, and system for measuring network packet loss. A sender performs data packet counting processing on a service stream sent to a receiver to obtain a first data packet count corresponding to a measurement period identifier. The sender sends an OAM packet including a measurement period identifier to be queried to the receiver. The OAM packet and a data packet of the service stream are transmitted on a same path. The sender receives a second data packet count that is returned by the receiver after the receiver receives the OAM packet. The second data packet count is a count obtained by the receiver by performing data packet counting processing on the received service stream. The sender determines a network packet loss situation according to the first data packet count and the second data packet count.

Abstract translation: 一种用于测量网络分组丢失的方法，设备和系统。 发送方对发送到接收机的服务流执行数据分组计数处理，以获得与测量周期标识符相对应的第一数据分组计数。 发送方向接收者发送包括要查询的测量周期标识符的OAM分组。 OAM分组和服务流的数据分组在相同的路径上传输。 发送方接收到接收方接收到OAM数据包后由接收方返回的第二个数据包计数。 第二数据分组计数是通过对所接收的服务流执行数据分组计数处理而由接收机获得的计数。 发送方根据第一数据包计数和第二数据包计数确定网络丢包情况。

公开(公告)号：US20240045272A1

公开(公告)日：2024-02-08

申请号：US18492400

申请日：2023-10-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  Southern University of Science and Technology

Inventor： Yanjun Liu ,  Rui Guo ,  Tenghao Li ,  Mengjia Cen ,  Jiawei Wang

IPC: G02F1/1337

CPC classification number: G02F1/133723 ,  G02F1/133742 ,  G02F1/133738

Abstract: An electromagnetic wave control apparatus includes an upper electrode layer, a lower electrode layer, a liquid crystal layer, and a first metamaterial layer disposed between the upper electrode layer and the lower electrode layer. The first metamaterial layer includes a first array including alignment unit structures. A first surface of the alignment unit structure is a surface that is of the alignment unit structure and that faces away from the liquid crystal layer. A length-to-width ratio of the first surface of the alignment unit structure is greater than 1. A length of the first surface, a width of the first surface, and a spacing between two adjacent alignment unit structures range from 1 nm to 5000 nm.

公开(公告)号：US20150200828A1

公开(公告)日：2015-07-16

申请号：US14670905

申请日：2015-03-27

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Hongming Liu ,  Wei Fang ,  Yanjun Liu

IPC: H04L12/26 ,  H04L29/12 ,  H04W56/00

CPC classification number: H04L43/0829 ,  H04L43/0876 ,  H04L43/0894 ,  H04L61/2007 ,  H04L61/6063 ,  H04W56/002

Abstract: Provided are a method, apparatus and system for measuring network packet loss, the method includes: acquiring data packet measurement information measured by at least one target logical port to a traffic stream, transmitting the data packet measurement information to a measurement control point, so that the measurement control point determine the condition of network packet loss according to the data packet measurement information. As a data collecting point acquires the data packet measurement information measured by at least one target logical port to the traffic stream, and uniformly transmits the data packet measurement information to the measurement control point, when multiple target logical ports respectively perform measurement to acquire respective data packet measurement information, the measurement control point uniformly determines condition of packet loss of the traffic stream. Therefore, accurate packet loss measurement can be performed on the traffic stream under the scenario of point-to-point, point-to-multipoint or multipoint-to-multipoint networks.

Abstract translation: 提供了一种用于测量网络分组丢失的方法，装置和系统，所述方法包括：将由至少一个目标逻辑端口测量的数据分组测量信息获取到业务流，将数据分组测量信息发送到测量控制点，使得 测量控制点根据数据包测量信息确定网络丢包的状况。 作为数据收集点，通过至少一个目标逻辑端口测量到的业务流的数据分组测量信息，并且当多个目标逻辑端口分别进行测量以获取各自的数据时，将数据分组测量信息均匀地发送到测量控制点 分组测量信息，测量控制点统一确定业务流的丢包状况。 因此，可以在点对点，点对多点或多点到多点网络的场景下对业务流执行准确的分组丢失测量。

公开(公告)号：US09985856B2

公开(公告)日：2018-05-29

申请号：US14670905

申请日：2015-03-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongming Liu ,  Wei Fang ,  Yanjun Liu

IPC: H04L12/26 ,  H04W56/00 ,  H04L29/12

CPC classification number: H04L43/0829 ,  H04L43/0876 ,  H04L43/0894 ,  H04L61/2007 ,  H04L61/6063 ,  H04W56/002

Abstract: Provided are a method, apparatus and system for measuring network packet loss, the method includes: acquiring data packet measurement information measured by at least one target logical port to a traffic stream, transmitting the data packet measurement information to a measurement control point, so that the measurement control point determine the condition of network packet loss according to the data packet measurement information. As a data collecting point acquires the data packet measurement information measured by at least one target logical port to the traffic stream, and uniformly transmits the data packet measurement information to the measurement control point, when multiple target logical ports respectively perform measurement to acquire respective data packet measurement information, the measurement control point uniformly determines condition of packet loss of the traffic stream. Therefore, accurate packet loss measurement can be performed on the traffic stream under the scenario of point-to-point, point-to-multipoint or multipoint-to-multipoint networks.

公开(公告)号：US11677670B2

公开(公告)日：2023-06-13

申请号：US17680535

申请日：2022-02-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yang Liu ,  Yanjun Liu ,  Zongxin Dou

IPC: H04L47/28 ,  H04J3/06 ,  H04J3/16

CPC classification number: H04L47/28 ,  H04J3/0661 ,  H04J3/1605

Abstract: A method for determining a sending period of a packet in a deterministic network and an apparatus are disclosed. The method includes: receiving a first packet; determining a first period, where the first period is a sending period of the first packet; determining timestamp information of the first packet based on the first period, where the timestamp information is used to indicate a time difference between a first time and a second time, the first time is a time at which the first packet starts to be sent in the first period, and the second time is a start time of the first period; encapsulating the timestamp information into the first packet to obtain a second packet; and sending the second packet.

公开(公告)号：US09402224B2

公开(公告)日：2016-07-26

申请号：US14029219

申请日：2013-09-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanjun Liu ,  Biyi Lin ,  Yuping Wang

IPC: H04W4/00 ,  H04W40/24 ,  H04L12/46 ,  H04L12/751

CPC classification number: H04W40/246 ,  H04L12/4641 ,  H04L45/02

Abstract: A method for neighbor discovery including: transmitting a neighbor detection message according to a neighbor VLAN information table, where the neighbor VLAN information table includes neighbor VLAN information; receiving a neighbor response message with which a terminal responds; acquiring a MAC address of the terminal according to the neighbor response message. With the method, numerous invalid detections, heavy apparatus load and large CPU resource consumption caused by traversing a public network VLAN and a private network VLAN to conduct neighbor detection decease.

Abstract translation: 一种邻居发现方法，包括：根据邻居VLAN信息表发送邻居检测消息，邻居VLAN信息表中包含邻居VLAN信息; 接收终端响应的邻居响应消息; 根据邻居响应消息获取终端的MAC地址。 通过这种方法，通过遍历公网VLAN和私网VLAN导致邻居检测死亡，导致无数次无效检测，重装置负载和大量CPU资源消耗。