CN105659505A - 信道传输特性获取方法和装置 - Google Patents

信道传输特性获取方法和装置 Download PDF

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Publication number
CN105659505A
CN105659505A CN201480011328.1A CN201480011328A CN105659505A CN 105659505 A CN105659505 A CN 105659505A CN 201480011328 A CN201480011328 A CN 201480011328A CN 105659505 A CN105659505 A CN 105659505A
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China
Prior art keywords
transmission characteristic
channel
channels
curve
characteristic curve
Prior art date
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Granted
Application number
CN201480011328.1A
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English (en)
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CN105659505B (zh
Inventor
张小龙
吕捷
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
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Publication of CN105659505A publication Critical patent/CN105659505A/zh
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/48—Testing attenuation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/06—Control of transmission; Equalising by the transmitted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/12—Arrangements for observation, testing or troubleshooting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/022—Channel estimation of frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6118—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
    • H04N21/6168—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications

Abstract

本发明实施例提供一种信道传输特性获取方法和装置，其中，方法包括：通过信道扫描的方式获取电缆调制解调器中至少两个信道的传输特性曲线；所述至少两个信道组成一个连续频段，所述至少两个信道的传输特性曲线分别对应的频点的频率值数量级相同，且幅度值数量级也相同；将所述信道的传输特性曲线沿幅度方向进行平移，使各个传输特性曲线的相同频点对应的幅度重合，构成一条连续的曲线；将所述连续的曲线作为所述连续频段的传输特性曲线。本发明提供的信道传输特性获取方法和装置，能够实现在HFC网络处于工作状态时获取信道传输特性，并提高分析结果的准确性。

Description

PCT国内申请，说明书已公开。

Claims (18)

  1. PCT国内申请，权利要求书已公开。
CN201480011328.1A 2014-09-28 2014-09-28 信道传输特性获取方法和装置 Active CN105659505B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/087701 WO2016045131A1 (zh) 2014-09-28 2014-09-28 信道传输特性获取方法和装置

Publications (2)

Publication Number Publication Date
CN105659505A true CN105659505A (zh) 2016-06-08
CN105659505B CN105659505B (zh) 2017-11-17

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Family Applications (1)

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CN201480011328.1A Active CN105659505B (zh) 2014-09-28 2014-09-28 信道传输特性获取方法和装置

Country Status (4)

Country Link
US (1) US10122410B2 (zh)
EP (1) EP3190714B1 (zh)
CN (1) CN105659505B (zh)
WO (1) WO2016045131A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107852343B (zh) * 2015-11-06 2020-11-17 华为技术有限公司 一种hfc网络故障定位的方法及装置、系统
EP3457636B1 (en) * 2016-05-11 2021-12-22 KT Corporation Network management device, customer premises equipment registration method therefor, and method for providing internet service to customer premises equipment
US11277162B2 (en) * 2020-02-28 2022-03-15 Nxp B.V. Adjacent channel suppression based on adjacent channel properties in FM radio broadcast receivers
US20230268956A1 (en) * 2022-02-19 2023-08-24 Charter Communications Operating, Llc Docsis radio frequency (rf) leakage management

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101056219A (zh) * 2006-04-14 2007-10-17 华为技术有限公司 一种实现网络性能测量的方法及系统
CN101755389A (zh) * 2007-07-20 2010-06-23 富士通株式会社 信号传输装置以及方法
CN103001666A (zh) * 2012-11-26 2013-03-27 中国电力科学研究院 低压电力线载波信道衰减特性测试系统及其控制方法
EP2717486A1 (en) * 2012-10-05 2014-04-09 Alcatel-Lucent A device and method for detecting presence of a surge protection on a digital subscriber line
CN104007705A (zh) * 2014-05-05 2014-08-27 上海交通大学 小线段路径压缩平滑的前瞻插补系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8948316B2 (en) * 2011-03-25 2015-02-03 Broadcom Corporation Upstream frequency response measurement and characterization

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101056219A (zh) * 2006-04-14 2007-10-17 华为技术有限公司 一种实现网络性能测量的方法及系统
CN101755389A (zh) * 2007-07-20 2010-06-23 富士通株式会社 信号传输装置以及方法
EP2717486A1 (en) * 2012-10-05 2014-04-09 Alcatel-Lucent A device and method for detecting presence of a surge protection on a digital subscriber line
CN103001666A (zh) * 2012-11-26 2013-03-27 中国电力科学研究院 低压电力线载波信道衰减特性测试系统及其控制方法
CN104007705A (zh) * 2014-05-05 2014-08-27 上海交通大学 小线段路径压缩平滑的前瞻插补系统

Also Published As

Publication number Publication date
EP3190714A1 (en) 2017-07-12
US10122410B2 (en) 2018-11-06
US20170201293A1 (en) 2017-07-13
WO2016045131A1 (zh) 2016-03-31
CN105659505B (zh) 2017-11-17
EP3190714B1 (en) 2018-12-05
EP3190714A4 (en) 2017-09-20

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