公开(公告)号：US12143146B2

公开(公告)日：2024-11-12

申请号：US17987393

申请日：2022-11-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jinshan Wang ,  Liming Fang ,  Yanbo Zhao ,  Yanbin Sun ,  Jianfei Liu ,  Yumeng Yang ,  Chao Wang

IPC: H04B1/525 ,  H04B1/10 ,  H04B7/015

Abstract: An echo cancellation method and a transceiver to reduce dependence of a system on an enob of a DAC, and improve performance of echo cancellation. The transceiver includes an echo cancellation apparatus, a transmit link, a receive link, and a hybrid circuit. The transmit link and the receive link are coupled to a transmission line by using the hybrid circuit. The echo cancellation apparatus includes a first signal converter, a slicer, a first subtractor, a second digital-to-analog converter, a second subtractor, and a third subtractor.

公开(公告)号：US11929856B2

公开(公告)日：2024-03-12

申请号：US17986485

申请日：2022-11-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanbo Zhao ,  Jianfei Liu ,  Jinshan Wang ,  Yanbin Sun ,  Liming Fang

IPC: H04L27/26

CPC classification number: H04L27/26

Abstract: This application provides a narrowband interference isolation method and a communication apparatus. An example method includes: determining a parameter of a narrowband interference signal; determining a coefficient of a first filter based on the parameter of the narrowband interference signal, wherein the first filter is located at a receive end of a master communication device, and the coefficient of the first filter is for filtering out the narrowband interference signal; and sending the parameter of the narrowband interference signal or the coefficient of the first filter to M slave communication devices using an Ethernet operation, administration, and maintenance (OAM) frame, wherein the master communication device is connected to the M slave communication devices, M≥1, and M is an integer.