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1. WO2016020749 - METHOD AND APPARATUS FOR DOWNSTREAM FLOW CONTROL IN (X)GPON SYSTEM

Publication Number WO/2016/020749
Publication Date 11.02.2016
International Application No. PCT/IB2015/001481
International Filing Date 29.07.2015
IPC
H04Q 11/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
11Selecting arrangements for multiplex systems
CPC
H04B 10/07
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
H04J 14/0247
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0227Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
0241Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
0242in WDM-PON
0245for downstream transmission, e.g. optical line terminal [OLT] to ONU
0247Sharing one wavelength for at least a group of ONUs
H04J 14/0249
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0227Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
0241Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
0242in WDM-PON
0249for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
H04J 14/0252
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0227Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
0241Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
0242in WDM-PON
0249for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
0252Sharing one wavelength for at least a group of ONUs, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
H04Q 11/0067
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
11Selecting arrangements for multiplex systems
0001using optical switching
0062Network aspects
0067Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
H04Q 2011/0064
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
11Selecting arrangements for multiplex systems
0001using optical switching
0062Network aspects
0064Arbitration, scheduling or medium access control aspects
Applicants
  • ALCATEL LUCENT [FR]/[FR]
Inventors
  • ZHU, Jianhua
  • ZE, Chao
Agents
  • SCIAUX, Edmond
Priority Data
201410380319.104.08.2014CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR DOWNSTREAM FLOW CONTROL IN (X)GPON SYSTEM
(FR) PROCÉDÉ ET APPAREIL POUR UNE COMMANDE DE FLUX DESCENDANT DANS UN SYSTÈME (X)GPON
Abstract
(EN)
The invention provides a method and apparatus for downstream flow control in an (x)GPON System. First, ONU sends a DS_FlowControl_Request message to OLT, wherein the DS_FlowControl_Request message includes information of transmission inhibiting period and is used for requesting OLT to inhibit downstream transmission for a transmission inhibiting period corresponding to the information of transmission inhibiting period. After receiving the DS_FlowControl_Request message from ONU, OLT inhibits the downstream transmission for the transmission inhibiting period corresponding to the information of transmission inhibiting period based on the information of transmission inhibiting period included in the DS_FlowControl_Request message. After inhibiting the downstream transmission for the transmission inhibiting period corresponding to the information of transmission inhibiting period, OLT résumes the downstream transmission to ONU.
(FR)
L’invention concerne un procédé et un appareil pour une commande de flux descendant dans un système (X)GPON. Tout d’abord, ONU envoie un message de requête de commande de flux descendant à OLT, le message de requête de commande de flux descendant comprenant des informations de période d’inhibition de transmission et étant utilisé pour demander à OLT d’inhiber une transmission descendante pendant une période d’inhibition de transmission correspondant aux informations de la période d’inhibition de transmission. Après la réception du message de requête de commande de flux descendant provenant d’ONU, OLT inhibe la transmission descendante pendant la période d’inhibition de transmission correspondant aux informations de la période d’inhibition de transmission, sur la base des informations de la période d’inhibition de transmission comprises dans le message de requête de commande de flux descendant. Après l'inhibition de la transmission descendante pendant la période d’inhibition de transmission correspondant aux informations de période d’inhibition de transmission, OLT reprend la transmission descendante vers ONU.
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