WO2021103344A1 - Power-saving control method and system for wdm-pon system - Google Patents

Power-saving control method and system for wdm-pon system Download PDF

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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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olt
dormant
olt port
wdm
port
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PCT/CN2020/079134
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French (fr)
Chinese (zh)
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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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    • 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

The present application relates to a power-saving control method and system for a WDM-PON system. The method comprises: determining according to the total traffic load conditions of a WDM-PON system whether an OLT port can be selected from among the WDM-PON system to enter a sleeping state; when the determination result displays that an OLT port can be selected to enter a sleeping state, counting the load conditions of each OLT port, and selecting the OLT port having the smallest load to serve as an OLT port that must sleep; and migrating an ONU linked under the OLT port to another OLT port, then controlling the OLT port to enter a sleeping state. The present application reduces power consumption, and solves the problems in the prior art in which the scale of an access network of a WDM-PON system is enormous, there are many devices, and power consumption is high.

Description

一种WDM-PON系统的节能控制方法和系统An energy-saving control method and system for WDM-PON system 技术领域Technical field
本申请属于光纤网络技术领域，尤其是涉及一种WDM-PON系统的节能控制方法和系统。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.
背景技术Background technique
WDM-PON(波分复用型无源光网络)技术结合了WDM(Wavelength Division Multiplexing，波分复用)技术和PON(Passive Optical Network，无源光网络)拓扑结构的特点，具有高带宽、低时延、节省光纤、运维简单、成本低等优点，在5G前传应用方面具备独特的优势，近年来广受关注。WDM-PON (Wavelength Division Multiplexing Passive Optical Network) technology combines the characteristics of WDM (Wavelength Division Multiplexing) technology and PON (Passive Optical Network) topology, with high bandwidth, It has the advantages of low latency, fiber saving, simple operation and maintenance, and low cost. It has unique advantages in 5G fronthaul applications and has attracted wide attention in recent years.
如图1所示，无源光网络(PON)包括一个安装于中心控制站的光线路终端(OLT，optical line terminal)，以及一批配套的安装于用户场所的光网络单元(Optical Network Unit，ONU)，PON使用单光纤连接到OLT，OLT连接到ONU，OLT用于向ONU以广播方式发送以太网数据，并为ONU分配带宽，即控制ONU发送数据的起始时间和发送窗口大小；ONU对OLT发送的广播进行选择性的接收，若需要接收数据，则需要对OLT进行接收响应；同时，ONU对用户的需要发送的以太网数据进行收集和缓存，并按照被分配的窗口向OLT发送缓存数 据。As shown in Figure 1, a passive optical network (PON) 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.
随着5G时代的来临，25G WDM-PON作为5G前传的一个重要的补充传输方案，预计在2019到2020年实现规模商用测试。5G时代，能耗是当今国内外运营商共同关注的话题，据统计，由于WDM-PON系统接入网规模巨大、设备众多，占据了网络能耗的70％以上，在现有25G WDM-PON系统中，存在多个OLT端口下挂多个ONU，且OLT端口一直处于活跃状态，能耗较大。With the advent of the 5G era, 25G WDM-PON, as an important supplementary transmission solution for 5G fronthaul, is expected to achieve large-scale commercial testing from 2019 to 2020. In the 5G era, energy consumption is a topic of common concern for domestic and foreign operators. According to statistics, due to the huge scale of the WDM-PON system access network and numerous equipment, it accounts for more than 70% of the network energy consumption. In the existing 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.
发明内容Summary of the invention
本发明要解决的技术问题是：解决现有技术中WDM-PON系统接入网规模巨大、设备众多、能耗较大的问题。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.
为解决上述技术问题，本发明提供了一种WDM-PON系统的节能控制方法和系统，本发明从网络负载运行的实际情况出发，通过比较OLT端口的负载情况，控制OLT端口休眠，大大降低OLT端口的能耗。In order to solve the above technical problems, 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.
本发明解决其技术问题所采用的技术方案是：The technical solutions adopted by the present invention to solve its technical problems are:
本发明第一方面提供了一种WDM-PON系统的节能控制方法，包括：The first aspect of the present invention provides an energy-saving control method for a WDM-PON system, including:
(1)根据OLT端口下的ONU数量，判断WDM-PON系统是否满足OLT端口休眠的条件，若满足，进入步骤(2)(1) 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)
(2)统计每个OLT端口的业务负载情况，选择业务负载最小的OLT端口作为休眠OLT端口；(2) Count the service load of each OLT port, and select the OLT port with the smallest service load as the dormant OLT port;
(3)将选择的所述休眠OLT端口下的ONU迁移至其他OLT端口；(3) Migrate the ONU under the selected dormant OLT port to other OLT ports;
(4)控制选择的所述休眠OLT端口进入休眠状态。(4) Control the selected dormant OLT port to enter the dormant state.
进一步地，根据本发明第一方面提供的WDM-PON系统的节能控制方法，所述OLT端口休眠的条件为：Further, according to the energy-saving control method of the WDM-PON system provided by the first aspect of the present invention, the condition for the OLT port to sleep is:
N O≤(N-1)●N OMAX N O ≤(N-1)N OMAX
其中，N O为所述WDM-PON系统中的ONU数量；N为所述WDM-PON系统中的OLT端口数量；N OMAX为每个OLT端口可容纳的最大ONU数量。 Wherein, 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.
进一步地，根据本发明第一方面提供的WDM-PON系统的节能控制方法，统计每个OLT端口的业务负载情况的步骤包括：Further, according to the energy-saving control method of the WDM-PON system provided in the first aspect of the present invention, the step of counting the service load of each OLT port includes:
统计每个OLT端口的活跃ONU数量和休眠ONU数量。Count the number of active ONUs and the number of dormant ONUs for each OLT port.
进一步地，根据本发明第一方面提供的WDM-PON系统的节能控制方法，选择业务负载最小的OLT端口作为休眠OLT端口的步骤包括：Further, according to the energy-saving control method of the WDM-PON system provided in the first aspect of the present invention, the step of selecting the OLT port with the smallest service load as the dormant OLT port includes:
首先选择活跃ONU数量最少的OLT端口作为休眠OLT端口，若存在活跃ONU数量相同的OLT端口，则选择休眠ONU数量最小的OLT端口进入休眠状态；First select the OLT port with the smallest 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;
若存在活跃ONU与休眠ONU数量均相同的OLT端口，则在其中随机选择OLT端口进入休眠状态。If there are OLT ports with the same number of active ONUs and dormant ONUs, the OLT ports are randomly selected to enter the dormant state.
进一步地，根据本发明第一方面提供的WDM-PON系统的节能控制方法，将选择的所述休眠OLT端口下的ONU迁移至其他OLT端口的步骤包括：Further, according to the energy-saving control method of the WDM-PON system provided by the first aspect of the present invention, the step of migrating the ONU under the selected dormant OLT port to other OLT ports includes:
将所述休眠OLT端口下的活跃ONU迁移至其他OLT端口，并将所述休眠OLT端口下的休眠ONU唤醒后迁移至所述其他OLT端口。Migrate the active ONUs under the dormant OLT port to other OLT ports, and wake the dormant ONUs under the dormant OLT port to migrate to the other OLT ports.
本发明第二方面提供了一种WDM-PON系统的节能控制系统，包括：The second aspect of the present invention provides an energy-saving control system for a WDM-PON system, including:
休眠判断模块，用于根据WDM-PON系统中的ONU数量，判断是否满足OLT端口休眠的条件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
休眠选择模块，用于统计每个OLT端口的业务负载情况，选择业务负载最小的OLT端口作为休眠OLT端口；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;
休眠控制模块，用于将选择的所述休眠OLT端口下的ONU迁移至其他OLT端口，控制选择的所述休眠OLT端口进入休眠状态。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.
进一步地，根据本发明第二方面提供的WDM-PON系统的节能控制系统，所述休眠选择模块包括：Further, according to the energy-saving control system of the WDM-PON system provided by the second aspect of the present invention, the sleep selection module includes:
ONU数量统计单元，用于统计每个OLT端口的活跃ONU数量和休眠ONU数量；ONU quantity statistics unit, used to count the number of active ONUs and the number of dormant ONUs of each OLT port;
端口选择单元，用于首先选择活跃ONU数量最少的OLT端口作为休眠OLT端口；若存在活跃ONU数量相同的OLT端口，则选择休眠ONU数量最小的OLT端口进入休眠状态；若存在活跃ONU与休眠ONU数量均相同的OLT端口，则在其中随机选择OLT端口进入休眠状态。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.
进一步地，根据本发明第二方面提供的WDM-PON系统的节能控制系统，所述休眠控制模块包括迁移单元，用于将所述休眠OLT端口下的活跃ONU迁移至其他OLT端口，并将所述休眠OLT端口下的休眠ONU唤醒，并迁移至所述其他OLT端口。Further, according to the energy-saving control system of the WDM-PON system provided by the second aspect of the present invention, 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.
进一步地，根据本发明第二方面提供的WDM-PON系统的节能控制系统，所述OLT端口休眠的条件为：Further, according to the energy-saving control system of the WDM-PON system provided by the second aspect of the present invention, the condition for the OLT port to sleep is:
Figure PCTCN2020079134-appb-000001
Figure PCTCN2020079134-appb-000001
其中，N O为所述WDM-PON系统中的ONU数量；N为所述WDM-PON 系统中的OLT端口数量；N OMAX为每个OLT端口可容纳的最大ONU数量。 Wherein, 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.
本发明的有益效果是：本申请从网络负载运行的实际情况出发，通过比较系统中OLT端口的负载情况，控制OLT端口休眠，在降低OLT端口能耗的前提下，减少ONU端口迁移数量，尤其是可以最大程度减小活跃状态下的ONU中断正常业务进行业务迁移的数量。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.
本申请在迁移活跃ONU的过程中，同时考虑了处于休眠状态的ONU，通过提前唤醒ONU并进行迁移的方式，减少其业务恢复时间，降低对现网业务的影响。In the process of migrating active ONUs, 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.
附图说明Description of the drawings
下面结合附图和实施例对本申请的技术方案进一步说明。The technical solution of the present application will be further described below with reference to the drawings and embodiments.
图1是无源光网络的拓扑结构图。Figure 1 is a topological structure diagram of a passive optical network.
图2是本申请实施例的控制方法流程示意图。Fig. 2 is a schematic flowchart of a control method according to an embodiment of the present application.
具体实施方式Detailed ways
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict.
下面将参考附图并结合实施例来详细说明本申请的技术方案。The technical solutions of the present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.
本申请是从网络负载运行的实际情况出发，通过比较WDM-PON系统中OLT端口的负载情况，控制相应的OLT端口休眠，从而降低OLT端口的能耗。具体包括：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:
根据WDM-PON系统的总业务负载情况，判断是否可以从WDM-PON系统中选择OLT端口进入休眠状态；According to the total service load of the WDM-PON system, judge whether the OLT port can be selected from the WDM-PON system to enter the dormant state;
当判断结果显示可以选择OLT端口进入休眠状态时，则统计每个OLT端口的业务负载情况，选择业务负载最小的OLT端口作为需要休眠的OLT端口；When the judgment result shows that the OLT port can be selected to enter the dormant state, 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;
将该需要休眠的OLT端口下挂的ONU(包括活跃ONU和休眠ONU)迁移至其他OLT端口，然后控制该需要休眠的OLT端口进入休眠状态。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.
实施例1Example 1
本实施例提供一种WDM-PON系统的节能控制方法，如图2所示，包括：This embodiment provides an energy-saving control method for a WDM-PON system, as shown in FIG. 2, including:
步骤1，判定是否满足OLT端口休眠条件Step 1. Determine whether the OLT port sleep condition is met
根据WDM-PON系统的接入网络中所有OLT端口下的ONU数量，判断ONU数量是否满足：According to the number of ONUs under all OLT ports in the access network of the WDM-PON system, determine whether the number of ONUs meets:
N O≤(N-1)●N OMAX N O ≤(N-1)N OMAX
其中，N O为所述WDM-PON系统接入网络中的ONU数量； Wherein, N O is the number of the WDM-PON system ONU access network;
N为所述WDM-PON系统接入网络中的OLT端口数量；N is the number of OLT ports in the WDM-PON system access network;
N OMAX为每个OLT端口可容纳的最大ONU数量。 NOMAX is the maximum number of ONUs that each OLT port can accommodate.
若满足，则表明WDM-PON系统满足OLT端口休眠条件，可以选择一个OLT端口进入休眠状态；否则，周期性重复执行步骤1，具体周期可根据实际情况确定。If it is satisfied, it means that 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.
步骤2，选择业务负载最小的OLT端口为休眠OLT端口 Step 2. Select the OLT port with the smallest service load as the dormant OLT port
统计WDM-PON系统中每个OLT端口下的活跃ONU数量和休眠ONU数量；Count the number of active ONUs and the number of dormant ONUs under each OLT port in the WDM-PON system;
优先选择活跃ONU数量最少的OLT端口进入休眠状态；Preferentially select the OLT port with the least number of active ONUs to enter the dormant state;
若多个OLT端口下的活跃ONU数量相同，则选择休眠ONU数量最少的OLT端口进入休眠状态；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;
若多个OLT端口下的活跃ONU与休眠ONU数量均相同，则在多个OLT端口中随机选择OLT端口进入休眠状态。If the number of active ONUs and dormant ONUs under multiple OLT ports are the same, the OLT port is randomly selected from the multiple OLT ports to enter the dormant state.
步骤3，将休眠OLT端口下的ONU迁移至其他OLT端口 Step 3. Migrate the ONU under the dormant OLT port to other OLT ports
将休眠OLT端口下的活跃ONU迁移至其他活跃OLT端口，并将休眠OLT端口下的休眠ONU唤醒，并迁移至所述其他活跃OLT端口。Migrate the active ONUs under the dormant OLT port to other active OLT ports, wake up the dormant ONUs under the dormant OLT port, and migrate to the other active OLT ports.
本实施例在迁移活跃ONU的过程中，同时考虑了处于休眠状态的ONU，通过提前唤醒ONU并进行迁移的方式，减少业务恢复时间，降低对现网业务的影响。In this embodiment, in the process of migrating active ONUs, 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.
步骤4，控制选择的休眠OLT端口进入休眠状态。Step 4. Control the selected dormant OLT port to enter the dormant state.
实施例2Example 2
本实施例提供了一种WDM-PON系统的节能控制系统，包括：This embodiment provides an energy-saving control system for a WDM-PON system, including:
(1)休眠判断模块(1) Sleep judgment module
本实施例的休眠判断模块，用于根据WDM-PON系统中的ONU数量，判断WDM-PON是否满足OLT端口休眠的条件。若满足，则表明可以选择一个OLT端口进入休眠状态。OLT端口休眠的条件与上述实施例1相同。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.
(2)休眠选择模块(2) Sleep selection module
本实施例的休眠选择模块包括ONU数量统计单元和端口选择单元,其中：The sleep selection module of this embodiment includes an ONU quantity statistics unit and a port selection unit, where:
ONU数量统计单元，用于WDM-PON系统中统计每个OLT端口的活 跃ONU数量和休眠ONU数量；ONU quantity statistics unit, used to count the number of active ONUs and sleep ONUs of each OLT port in the WDM-PON system;
端口选择单元，用于统计每个OLT端口的业务负载情况，选择业务负载最小的OLT端口作为休眠OLT端口，进一步地：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:
端口选择单元用于优先选择活跃ONU数量最少的OLT端口进入休眠状态；若多个OLT端口下的活跃ONU数量相同，则选择休眠ONU数量最少的OLT端口进入休眠状态；若多个OLT端口下的活跃ONU与休眠ONU数量均相同，则在多个OLT端口中随机选择OLT端口进入休眠状态。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.
(3)休眠控制模块(3) Sleep control module
本实施例的休眠控制模块包括迁移单元和控制单元，其中：The sleep control module of this embodiment includes a migration unit and a control unit, wherein:
迁移单元，用于将所述休眠OLT端口下的活跃ONU迁移至其他OLT端口，并将所述休眠OLT端口下的休眠ONU唤醒，并迁移至所述其他OLT端口。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.
控制单元，用于控制休眠OLT端口进入休眠状态。The control unit is used to control the sleeping OLT port to enter the sleeping state.
以上述依据本申请的理想实施例为启示，通过上述的说明内容，相关工作人员完全可以在不偏离本项申请技术思想的范围内，进行多样的变更以及修改。本项申请的技术性范围并不局限于说明书上的内容，必须要根据权利要求范围来确定其技术性范围。Taking the above-mentioned ideal embodiment based on this application as enlightenment, through the above description, relevant staff can make various changes and modifications without departing from the scope of the technical idea of this application. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims (9)

  1. 一种WDM-PON系统的节能控制方法，其特征在于，包括：An energy-saving control method for WDM-PON system, which is characterized in that it includes:
    (1)根据WDM-PON系统接入网络中OLT端口下的ONU数量，判断WDM-PON系统是否满足OLT端口休眠的条件，若满足，进入步骤(2)(1) According to the number of ONUs under the OLT port in the WDM-PON system access network, judge whether the WDM-PON system meets the conditions of OLT port sleep, if it is satisfied, go to step (2)
    (2)统计每个OLT端口的业务负载情况，选择业务负载最小的OLT端口作为休眠OLT端口；(2) Count the service load of each OLT port, and select the OLT port with the smallest service load as the dormant OLT port;
    (3)将选择的所述休眠OLT端口下的ONU迁移至其他OLT端口；(3) Migrate the ONU under the selected dormant OLT port to other OLT ports;
    (4)控制选择的所述休眠OLT端口进入休眠状态。(4) Control the selected dormant OLT port to enter the dormant state.
  2. 根据权利要求1所述的WDM-PON系统的节能控制方法，其特征在于，所述OLT端口休眠的条件为：The energy-saving control method of the WDM-PON system according to claim 1, wherein the condition for the OLT port to sleep is:
    N O≤(N-1)·N OMAX N O ≤(N-1)·N OMAX
    其中，N O为所述WDM-PON系统中的ONU数量；N为所述WDM-PON系统中的OLT端口数量；N OMAX为每个OLT端口可容纳的最大ONU数量。 Wherein, 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.
  3. 根据权利要求1所述的WDM-PON系统的节能控制方法，其特征在于，统计每个OLT端口的业务负载情况的步骤包括：The energy-saving control method of the WDM-PON system according to claim 1, wherein the step of counting the service load of each OLT port comprises:
    统计每个OLT端口的活跃ONU数量和休眠ONU数量。Count the number of active ONUs and the number of dormant ONUs for each OLT port.
  4. 根据权利要求3所述的WDM-PON系统的节能控制方法，其特征在于，选择业务负载最小的OLT端口作为休眠OLT端口的步骤包括：The energy-saving control method of the WDM-PON system according to claim 3, wherein the step of selecting the OLT port with the smallest service load as the dormant OLT port comprises:
    首先选择活跃ONU数量最少的OLT端口作为休眠OLT端口，若存在活跃ONU数量相同的OLT端口，则选择休眠ONU数量最小的OLT端口进入休眠状态；First select the OLT port with the smallest 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;
    若存在活跃ONU与休眠ONU数量均相同的OLT端口，则在其中随 机选择OLT端口进入休眠状态。If there are OLT ports with the same number of active ONUs and dormant ONUs, the OLT ports are randomly selected to enter the dormant state.
  5. 根据权利要求4所述的WDM-PON系统的节能控制方法，其特征在于，将选择的所述休眠OLT端口下的ONU迁移至其他OLT端口的步骤包括：The energy-saving control method of the WDM-PON system according to claim 4, wherein the step of migrating the ONU under the selected dormant OLT port to another OLT port comprises:
    将所述休眠OLT端口下的活跃ONU迁移至其他OLT端口，并将所述休眠OLT端口下的休眠ONU唤醒后迁移至所述其他OLT端口。Migrate the active ONUs under the dormant OLT port to other OLT ports, and wake the dormant ONUs under the dormant OLT port to migrate to the other OLT ports.
  6. 一种WDM-PON系统的节能控制系统，其特征在于，包括：An energy-saving control system for WDM-PON system, which is characterized in that it includes:
    休眠判断模块，用于根据WDM-PON系统中的ONU数量，判断是否满足OLT端口休眠的条件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
    休眠选择模块，用于统计每个OLT端口的业务负载情况，选择业务负载最小的OLT端口作为休眠OLT端口；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;
    休眠控制模块，用于将选择的所述休眠OLT端口下的ONU迁移至其他OLT端口，控制选择的所述休眠OLT端口进入休眠状态。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.
  7. 根据权利要求6所述的WDM-PON系统的节能控制系统，其特征在于，所述休眠选择模块包括：The energy-saving control system of the WDM-PON system according to claim 6, wherein the sleep selection module comprises:
    ONU数量统计单元，用于统计每个OLT端口的活跃ONU数量和休眠ONU数量；ONU quantity statistics unit, used to count the number of active ONUs and the number of dormant ONUs of each OLT port;
    端口选择单元，用于首先选择活跃ONU数量最少的OLT端口作为休眠OLT端口；若存在活跃ONU数量相同的OLT端口，则选择休眠ONU数量最小的OLT端口进入休眠状态；若存在活跃ONU与休眠ONU数量均相同的OLT端口，则在其中随机选择OLT端口进入休眠状态。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.
  8. 根据权利要求6所述的WDM-PON系统的节能控制系统，其特 征在于，所述休眠控制模块包括迁移单元，用于将所述休眠OLT端口下的活跃ONU迁移至其他OLT端口，并将所述休眠OLT端口下的休眠ONU唤醒，并迁移至所述其他OLT端口。The energy-saving control system of the WDM-PON system according to claim 6, wherein the sleep control module includes a migration unit, configured to migrate the active ONUs under the sleep OLT port to other OLT ports, and transfer all the active ONUs under the dormant OLT port to other OLT ports. The dormant ONU under the dormant OLT port wakes up and migrates to the other OLT port.
  9. 根据权利要求6所述的WDM-PON系统的节能控制系统，其特征在于，所述OLT端口休眠的条件为：The energy-saving control system of the WDM-PON system according to claim 6, wherein the condition for the OLT port to sleep is:
    N O≤(N-1)·N OMAX N O ≤(N-1)·N OMAX
    其中，N O为所述WDM-PON系统中的ONU数量；N为所述WDM-PON系统中的OLT端口数量；N OMAX为每个OLT端口可容纳的最大ONU数量。 Wherein, 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.
PCT/CN2020/079134 2019-11-26 2020-03-13 Power-saving control method and system for wdm-pon system WO2021103344A1 (en)

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