Time domain ingress noise detection and cancellation

A time-domain, narrow-band noise technology, applied in optical fiber transmission, adaptive network, transmission system, etc., can solve problems such as data signal processing damage

Active Publication Date: 2018-05-11
上海朋熙半导体有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Impairment of Receiver Processing of Data Signals in Communication Systems Without Compensation for Narrowband Ingress Noise

Method used

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  • Time domain ingress noise detection and cancellation
  • Time domain ingress noise detection and cancellation
  • Time domain ingress noise detection and cancellation

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[0034] It should be understood at the outset that, although an illustrative implementation of one or more embodiments is provided below, the disclosed systems and / or methods may be implemented using any number of techniques, whether currently known or in existence. The invention should in no way be limited to the illustrative implementations, drawings, and techniques illustrated below, including the exemplary designs and implementations illustrated and described herein, but rather be within the scope of the appended claims and their equivalents Modified within the full range of .

[0035]Some hybrid access networks may combine optical networks with coaxial (coaxial cable) networks. Ethernet over Coax (EoC for short) is a basic name used to describe all technologies for transmitting Ethernet frames over a coaxial network. For example, EoC technologies may include EPoC, DOCSIS, Multimedia over Coax Alliance (MoCA for short), G.hn (a home network technology family developed by t...

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Abstract

An apparatus, comprising a receiver configured to receive a primary signal that comprises a narrowband noise component and a broadband noise component, a processor coupled to the receiver and configured to determine, in a time domain, an estimate of the narrowband noise component in real-time, determine a cancelled output signal in real-time that comprises an estimate of the broadband noise component, and determine an estimate of a power level of the narrowband noise component in real-time.

Description

[0001] Related Applications Cross Application [0002] This application claims the benefit of and prior application to U.S. Nonprovisional Patent Application No. 14 / 966,244, filed December 11, 2015, entitled "Temporal Ingress Noise Detection and Cancellation," which The contents are incorporated herein by reference. Background technique [0003] In some signal processing schemes or communication systems, such as data overcable service interface specification (DOCSIS) and coaxial distribution based on Ethernet passive optical network (EPON) protocol Network (EPON protocolover Coaxial, EPOC for short), the upstream band-limited data signal is damaged by narrow-band ingress noise and broadband additive white Gaussian noise (AWGN for short). Without compensation for narrowband ingress noise, receiver processing of data signals in communication systems is compromised. Therefore, there is a need for effective and efficient compensation of corrupted data signals. Contents of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/10H03H21/00
CPCH04L25/0228H04B10/616H04B10/697H04B1/1036H04B10/2575H04B10/60H04L12/2885H04L25/03019
Inventor 赛义德·哈比·拉赫曼王凡司小书欧阳涛牛川
Owner 上海朋熙半导体有限公司
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