CA2829056C - Correction temporelle pour un edge-qam a protocole docsis - Google Patents

Correction temporelle pour un edge-qam a protocole docsis Download PDF

Info

Publication number
CA2829056C
CA2829056C CA2829056A CA2829056A CA2829056C CA 2829056 C CA2829056 C CA 2829056C CA 2829056 A CA2829056 A CA 2829056A CA 2829056 A CA2829056 A CA 2829056A CA 2829056 C CA2829056 C CA 2829056C
Authority
CA
Canada
Prior art keywords
qam
messages
headend
local clock
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA2829056A
Other languages
English (en)
Other versions
CA2829056A1 (fr
Inventor
Dean A. Stoneback
Nagesh S. Nandiraju
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commscope UK Ltd
Original Assignee
Arris Enterprises LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/017,388 external-priority patent/US9742495B2/en
Application filed by Arris Enterprises LLC filed Critical Arris Enterprises LLC
Publication of CA2829056A1 publication Critical patent/CA2829056A1/fr
Application granted granted Critical
Publication of CA2829056C publication Critical patent/CA2829056C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Optical Communication System (AREA)

Abstract

Des techniques de correction de synchronisation pour un edge-QAM à protocole DOCSIS. Contrairement à linterface de synchronisation DOCSIS à la tête de réseau dans les solutions existantes aux fins de la synchronisation pour un edge-QAM à protocole DOCSIS, les techniques décrites peuvent utiliser une synchronisation pour un edge-QAM plus profondément dans le réseau. Le N-QAM, faisant référence à un Edge-QAM qui est plus profond dans le réseau, peut se situer dans le nud optique configuré pour convertir les signaux dune tête ou dun concentrateur de réseau pour distribution à un élément de réseau dabonné. Le dispositif N-QAM situé dans le nud peut comprendre une horloge locale afin de dériver un temps dhorloge locale pour des flux de transport entrants, la modulation des flux de transport en une porteuse de liaison descendante pour distribution à des éléments de réseau dabonnés en utilisant le temps dhorloge locale, et le réglage du temps dhorloge locale en fonction dune valeur moyenne des estampilles temporelles dans les flux de transport entrants.
CA2829056A 2012-10-25 2013-10-02 Correction temporelle pour un edge-qam a protocole docsis Active CA2829056C (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201261718703P 2012-10-25 2012-10-25
US61/718,703 2012-10-25
US14/017,388 US9742495B2 (en) 2012-10-25 2013-09-04 Timing correction for a DOCSIS Edge-Qam
US14/017,388 2013-09-04

Publications (2)

Publication Number Publication Date
CA2829056A1 CA2829056A1 (fr) 2014-04-25
CA2829056C true CA2829056C (fr) 2019-02-05

Family

ID=50543736

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2829056A Active CA2829056C (fr) 2012-10-25 2013-10-02 Correction temporelle pour un edge-qam a protocole docsis

Country Status (1)

Country Link
CA (1) CA2829056C (fr)

Also Published As

Publication number Publication date
CA2829056A1 (fr) 2014-04-25

Similar Documents

Publication Publication Date Title
US20130125194A1 (en) Converged Cable Access Platform for Provision of Video and Data Services
US20080285597A1 (en) Synchronizing separated edge qam devices located remotely from a cmts
US9742495B2 (en) Timing correction for a DOCSIS Edge-Qam
KR20220130670A (ko) R-phy 네트워크 아키텍처에서 큰 위상 보정을 위한 시스템 및 방법
US20220263677A1 (en) Systems and methods for supporting phase adjustments over docsis
US11528521B2 (en) Partial video async support using R-MACPHY device
US6208665B1 (en) Data synchronization unit for a headend
JP2024505547A (ja) ビデオ配信のための適応型ビデオスルーレート
US8873647B2 (en) Multi-reference clock synchronization techniques
US9088390B1 (en) Re-synchronization of timing between communication devices
CN113169806A (zh) 改善r-phy网络架构中保持性能的系统和方法
US20230354227A1 (en) Edge communication networks with edge-located clocks and associated methods
CA2829056C (fr) Correction temporelle pour un edge-qam a protocole docsis
US11546072B2 (en) Systems and methods to improve holdover performance in R-PHY network architectures
US20230283390A1 (en) Method of measuring timing holdover performance in an r-phy system
US20230327970A1 (en) Integrated network evaluation troubleshooting tool
US20240291582A1 (en) Systems and methods for automatic correction for ptp delay asymmetry
US20230275822A1 (en) Geolocation of cable modems
KR101843843B1 (ko) 케이블 네트워크에서 ｏｎｕ 장치 및 동기화 방법
US20250350787A1 (en) Common implementation of sync and async video processing
US9787768B1 (en) M-CMTS, Edge-QAM and upstream receiver core timing synchronization
WO2024006571A1 (fr) Procédé de mesure de gigue de réseau
WO2025235950A2 (fr) Auto-rétablissement après des événements de saut de phase négative
US20140185630A1 (en) Systems And Methods For Performing Fiber Node Splits Using Remote QAM Modulation And Demodulation

Legal Events

Date Code Title Description
MPN Maintenance fee for patent paid

Free format text: FEE DESCRIPTION TEXT: MF (PATENT, 11TH ANNIV.) - STANDARD

Year of fee payment: 11

U00 Fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U00-U101 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE REQUEST RECEIVED

Effective date: 20240927

U11 Full renewal or maintenance fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT DETERMINED COMPLIANT

Effective date: 20240927

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT PAID IN FULL

Effective date: 20240927

MPN Maintenance fee for patent paid

Free format text: FEE DESCRIPTION TEXT: MF (PATENT, 12TH ANNIV.) - STANDARD

Year of fee payment: 12

U00 Fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U00-U101 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE REQUEST RECEIVED

Effective date: 20250926

U11 Full renewal or maintenance fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT PAID IN FULL

Effective date: 20250926