WO2021103344A1 - Procédé et système de commande d'économie d'énergie pour système mrl-pon - Google Patents

Procédé et système de commande d'économie d'énergie pour système mrl-pon Download PDF

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Publication number
WO2021103344A1
WO2021103344A1 PCT/CN2020/079134 CN2020079134W WO2021103344A1 WO 2021103344 A1 WO2021103344 A1 WO 2021103344A1 CN 2020079134 W CN2020079134 W CN 2020079134W WO 2021103344 A1 WO2021103344 A1 WO 2021103344A1
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WO
WIPO (PCT)
Prior art keywords
olt
dormant
olt port
wdm
port
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Application number
PCT/CN2020/079134
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English (en)
Chinese (zh)
Inventor
周兰颖
蔡文杰
胡紫阳
汤溢
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通鼎互联信息股份有限公司
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Application filed by 通鼎互联信息股份有限公司 filed Critical 通鼎互联信息股份有限公司
Publication of WO2021103344A1 publication Critical patent/WO2021103344A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application belongs to the field of optical fiber network technology, and in particular relates to an energy-saving control method and system for a WDM-PON system.
  • WDM-PON Wivelength Division Multiplexing Passive Optical Network
  • WDM-PON Passive Optical Network
  • a passive optical network includes an optical line terminal (OLT, optical line terminal) installed in a central control station, and a group of supporting optical network units (Optical Network Unit, ONU), the PON uses a single optical fiber to connect to the OLT, and the OLT is connected to the ONU.
  • the OLT is used to broadcast Ethernet data to the ONU and allocate bandwidth for the ONU, that is, control the start time of the ONU to send data and the size of the sending window; ONU Selectively receive the broadcast sent by the OLT. If you need to receive data, you need to respond to the OLT; at the same time, the ONU collects and buffers the Ethernet data that the user needs to send, and sends it to the OLT according to the assigned window Cache data.
  • 25G WDM-PON as an important supplementary transmission solution for 5G fronthaul, is expected to achieve large-scale commercial testing from 2019 to 2020.
  • energy consumption is a topic of common concern for domestic and foreign operators.
  • 25G WDM-PON In the system, there are multiple ONUs connected to multiple OLT ports, and the OLT ports are always active, which consumes a lot of energy.
  • the technical problem to be solved by the present invention is to solve the problems of huge scale of WDM-PON system access network, numerous equipment and high energy consumption in the prior art.
  • the present invention provides a WDM-PON system energy-saving control method and system.
  • the present invention starts from the actual situation of network load operation, and controls OLT port sleep by comparing the load situation of OLT ports, which greatly reduces OLT Energy consumption of the port.
  • the first aspect of the present invention provides an energy-saving control method for a WDM-PON system, including:
  • step (2) According to the number of ONUs under the OLT port, judge whether the WDM-PON system meets the conditions of OLT port sleep, if it is satisfied, go to step (2)
  • the condition for the OLT port to sleep is:
  • N O is the number of the ONU in the WDM-PON system; N is the number of ports of the WDM-PON OLT system; N is the maximum number of the OMAX ONU can be accommodated per OLT port.
  • the step of counting the service load of each OLT port includes:
  • the step of selecting the OLT port with the smallest service load as the dormant OLT port includes:
  • the OLT ports are randomly selected to enter the dormant state.
  • the step of migrating the ONU under the selected dormant OLT port to other OLT ports includes:
  • the second aspect of the present invention provides an energy-saving control system for a WDM-PON system, including:
  • Sleep judgment module used to judge whether the OLT port sleep conditions are met according to the number of ONUs in the WDM-PON system
  • Sleep selection module used to count the business load of each OLT port, and select the OLT port with the smallest business load as the dormant OLT port;
  • the dormancy control module is used to migrate the ONU under the selected dormant OLT port to other OLT ports, and control the selected dormant OLT port to enter the dormant state.
  • the sleep selection module includes:
  • ONU quantity statistics unit used to count the number of active ONUs and the number of dormant ONUs of each OLT port;
  • the port selection unit is used to first select the OLT port with the least number of active ONUs as the dormant OLT port; if there are OLT ports with the same number of active ONUs, select the OLT port with the smallest number of dormant ONUs to enter the dormant state; if there are active ONUs and dormant ONUs If the number of OLT ports is the same, the OLT port is randomly selected to enter the dormant state.
  • the sleep control module includes a migration unit for migrating the active ONU under the sleep OLT port to other OLT ports, and The dormant ONU under the dormant OLT port wakes up and migrates to the other OLT port.
  • condition for the OLT port to sleep is:
  • N O is the number of the ONU in the WDM-PON system; N is the number of ports of the WDM-PON OLT system; N is the maximum number of the OMAX ONU can be accommodated per OLT port.
  • the beneficial effects of the present invention are: starting from the actual situation of network load operation, this application controls the dormancy of the OLT port by comparing the load situation of the OLT port in the system, and reduces the number of ONU port migration under the premise of reducing the energy consumption of the OLT port, especially It can minimize the number of ONUs in the active state that interrupt normal services for service migration.
  • this application also considers the dormant ONUs. By waking up the ONUs in advance and migrating, the service recovery time is reduced and the impact on the existing network services is reduced.
  • Figure 1 is a topological structure diagram of a passive optical network.
  • Fig. 2 is a schematic flowchart of a control method according to an embodiment of the present application.
  • This application starts from the actual situation of network load operation, and controls the corresponding OLT port sleep by comparing the load situation of the OLT port in the WDM-PON system, thereby reducing the energy consumption of the OLT port. Specifically:
  • the business load of each OLT port is counted, and the OLT port with the smallest business load is selected as the OLT port that needs to sleep;
  • Migrate ONUs (including active ONUs and dormant ONUs) attached to the OLT port that needs to sleep to other OLT ports, and then control the OLT port that needs to sleep to enter the sleep state.
  • This embodiment provides an energy-saving control method for a WDM-PON system, as shown in FIG. 2, including:
  • Step 1 Determine whether the OLT port sleep condition is met
  • N O is the number of the WDM-PON system ONU access network
  • N is the number of OLT ports in the WDM-PON system access network
  • NOMAX is the maximum number of ONUs that each OLT port can accommodate.
  • the WDM-PON system meets the OLT port dormancy condition and can select an OLT port to enter the dormant state; otherwise, repeat step 1 periodically, and the specific period can be determined according to the actual situation.
  • Step 2 Select the OLT port with the smallest service load as the dormant OLT port
  • the OLT port is randomly selected from the multiple OLT ports to enter the dormant state.
  • Step 3 Migrate the ONU under the dormant OLT port to other OLT ports
  • the dormant ONUs are also considered. By waking up the ONUs in advance and migrating, the service recovery time is reduced and the impact on existing network services is reduced.
  • Step 4 Control the selected dormant OLT port to enter the dormant state.
  • This embodiment provides an energy-saving control system for a WDM-PON system, including:
  • the sleep judging module of this embodiment is used to judge whether the WDM-PON satisfies the sleep condition of the OLT port according to the number of ONUs in the WDM-PON system. If it is satisfied, it indicates that an OLT port can be selected to enter the dormant state.
  • the conditions for the OLT port to sleep are the same as in the first embodiment above.
  • the sleep selection module of this embodiment includes an ONU quantity statistics unit and a port selection unit, where:
  • ONU quantity statistics unit used to count the number of active ONUs and sleep ONUs of each OLT port in the WDM-PON system
  • the port selection unit is used to count the service load of each OLT port, select the OLT port with the smallest service load as the dormant OLT port, and further:
  • the port selection unit is used to preferentially select the OLT port with the least number of active ONUs to enter the dormant state; if the number of active ONUs under multiple OLT ports is the same, select the OLT port with the least number of dormant ONUs to enter the dormant state; The number of active ONUs and dormant ONUs are the same, and the OLT port is randomly selected from multiple OLT ports to enter the dormant state.
  • the sleep control module of this embodiment includes a migration unit and a control unit, wherein:
  • the migration unit is configured to migrate the active ONU under the dormant OLT port to another OLT port, wake up the dormant ONU under the dormant OLT port, and migrate to the other OLT port.
  • the control unit is used to control the sleeping OLT port to enter the sleeping state.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

La présente demande se rapporte à un procédé et système de commande d'économie d'énergie pour un système MRL-PON. Le procédé consiste : à déterminer, en fonction des conditions de charge de trafic totales d'un système MRL-PON, si un port OLT peut être sélectionné à partir du système MRL-PON pour entrer dans un état de veille ; lorsque le résultat de détermination affiche qu'un port OLT peut être sélectionné pour entrer dans un état de veille, à compter les conditions de charge de chaque port OLT, et à sélectionner le port OLT ayant la plus petite charge pour servir de port OLT qui doit passer en mode veille ; et à migrer une ONU reliée sous le port OLT à un autre port OLT, puis à commander au port OLT d'entrer dans un état de veille. La présente demande réduit la consommation d'énergie, et résout les problèmes de l'état de la technique dans lesquels l'échelle d'un réseau d'accès d'un système MRL-PON est conséquente, il existe de nombreux dispositifs, et la consommation d'énergie est élevée.
PCT/CN2020/079134 2019-11-26 2020-03-13 Procédé et système de commande d'économie d'énergie pour système mrl-pon WO2021103344A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911172049.4 2019-11-26
CN201911172049.4A CN110913286A (zh) 2019-11-26 2019-11-26 一种wdm-pon系统的节能控制方法和系统

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023180012A1 (fr) * 2022-03-24 2023-09-28 British Telecommunications Public Limited Company Amélioration du rendement énergétique de réseaux optiques
US12035084B2 (en) 2019-10-07 2024-07-09 British Telecommunications Public Limited Company Optical communications network and method for continuous service provision thereon

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Publication number Priority date Publication date Assignee Title
CN102158368A (zh) * 2011-02-15 2011-08-17 华为技术有限公司 节能处理方法和装置、局端设备以及网络系统
JP2012095089A (ja) * 2010-10-27 2012-05-17 Sumitomo Electric Ind Ltd 局側装置、宅側装置、光通信システム、および光通信システムの制御方法
CN106160918A (zh) * 2015-04-23 2016-11-23 中国电信股份有限公司 Twdm pon 网络中olt 端口的节能控制方法和装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110446123B (zh) * 2019-08-19 2022-01-11 深圳市双翼科技股份有限公司 无源光网络中olt端口的节能控制方法和系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012095089A (ja) * 2010-10-27 2012-05-17 Sumitomo Electric Ind Ltd 局側装置、宅側装置、光通信システム、および光通信システムの制御方法
CN102158368A (zh) * 2011-02-15 2011-08-17 华为技术有限公司 节能处理方法和装置、局端设备以及网络系统
CN106160918A (zh) * 2015-04-23 2016-11-23 中国电信股份有限公司 Twdm pon 网络中olt 端口的节能控制方法和装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12035084B2 (en) 2019-10-07 2024-07-09 British Telecommunications Public Limited Company Optical communications network and method for continuous service provision thereon
WO2023180012A1 (fr) * 2022-03-24 2023-09-28 British Telecommunications Public Limited Company Amélioration du rendement énergétique de réseaux optiques

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