WO2022188579A1 - 带宽分配方法、光线路终端及计算机可读存储介质 - Google Patents

带宽分配方法、光线路终端及计算机可读存储介质 Download PDF

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WO2022188579A1
WO2022188579A1 PCT/CN2022/074702 CN2022074702W WO2022188579A1 WO 2022188579 A1 WO2022188579 A1 WO 2022188579A1 CN 2022074702 W CN2022074702 W CN 2022074702W WO 2022188579 A1 WO2022188579 A1 WO 2022188579A1
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bandwidth
attribute
onu
dba
burst
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PCT/CN2022/074702
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English (en)
French (fr)
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卢金树
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中兴通讯股份有限公司
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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
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • 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
    • H04Q2011/0086—Network resource allocation, dimensioning or optimisation

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  • the embodiments of the present application relate to, but are not limited to, the field of communications, and in particular, relate to a bandwidth allocation method, an optical line terminal, and a computer-readable storage medium.
  • the embodiments of the present application provide a bandwidth allocation method, an optical line terminal, and a computer-readable storage medium.
  • an embodiment of the present application provides a bandwidth allocation method, including: monitoring a service attribute of an ONU; and in the case that the service attribute is a low-latency attribute, adopting a first dynamic bandwidth allocation DBA mode for the ONU Allocating a bandwidth grant amount, wherein the first DBA mode is a DBA mode in which multiple burst bandwidth entries are allocated in a single frame signal.
  • an embodiment of the present application further provides an optical line terminal, including a memory, a processor, and a computer program stored in the memory and running on the processor, the computer program being processed by the processor.
  • the bandwidth allocation method of the foregoing first aspect is implemented when the processor is executed.
  • embodiments of the present application further provide a computer-readable storage medium, where an information processing program is stored on the computer-readable storage medium, and when the information processing program is executed by a processor, the bandwidth of the foregoing first aspect is achieved allocation method.
  • FIG. 1 is a schematic diagram of a system architecture for performing a bandwidth allocation method provided by an embodiment of the present application
  • Fig. 3 is the flow chart that adopts the first DBA mode to allocate bandwidth authorization amount to described ONU in the bandwidth allocation method provided by an embodiment of the present application;
  • FIG. 4 is a flowchart of allocating a burst bandwidth grant amount for each burst bandwidth entry according to a bandwidth requirement parameter in a bandwidth allocation method provided by an embodiment of the present application;
  • Fig. 5 is the flow chart that utilizes the average bandwidth authorization amount allocated by each burst bandwidth entry to allocate for ONU in the bandwidth allocation method provided by an embodiment of the present application;
  • Fig. 6 is the flow chart of monitoring the service attribute of ONU in the bandwidth allocation method provided by an embodiment of the present application
  • FIG. 7 is a flowchart of judging an attribute type of an attribute parameter in a bandwidth allocation method provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a bandwidth allocation method provided by another embodiment of the present application.
  • FIG. 9 is a schematic diagram of an optical line terminal provided by an embodiment of the present application.
  • Embodiments of the present application provide a bandwidth allocation method, an optical line terminal, and a computer-readable storage medium, wherein the bandwidth allocation method includes: monitoring a service attribute of an ONU; A dynamic bandwidth allocation DBA mode allocates a bandwidth grant amount to the ONU, wherein the first DBA mode is a DBA mode in which multiple burst bandwidth entries are allocated in a single frame signal.
  • the OLT monitors the service attributes of the ONU, and when the service attributes of the ONU are low-latency attributes, the first DBA mode is used to allocate the bandwidth authorization amount to the ONU, that is, by allocating multiple burst bandwidth entries in a single frame signal
  • the DBA mode allocates bandwidth authorization to the ONU, which can dynamically allocate bandwidth authorization for low-latency services without changing the ONU, and effectively improve bandwidth utilization.
  • FIG. 1 is a schematic diagram of a system architecture for executing a bandwidth allocation method provided by an embodiment of the present application.
  • the system architecture includes an OLT 110 , an optical splitter 120 and an ONU 130 , the OLT 110 is optically connected to the ONU 130 through the optical splitter 120 , and the OLT 110 includes a DBA module 111 .
  • Bandwidth allocation For example, in the process of GPON upstream transmission, upstream data of different ONUs 130 are transmitted upward on their respective branch fibers, and the data is merged after passing through the optical splitter 120 .
  • Uplink transmission can use time division multiplexing to transmit data, that is, uplink can be divided into different time slots, each ONU130 sends data in different time slots, wherein, OLT110 unified scheduling and authorization, ONU130 passive response.
  • the OLT 110 can monitor the ONU 130 in real time through the DBA module 111, and the OLT 110 performs dynamic bandwidth allocation for the ONU 130 according to congestion, current bandwidth utilization, and configuration.
  • the number of the OLT 110 and the ONU 130 set in the system architecture may be set according to the actual situation, which is not specifically limited in this embodiment.
  • one OLT 110 may be connected to one ONU 130, two ONU 130s, or three ONU 130s, and the number of ONUs 130 is not specifically limited in this embodiment.
  • the maximum bandwidth that can be allocated by the ONU 130 may be set according to actual conditions, which is not specifically limited in this embodiment.
  • the parameters are dynamically allocated by the DBA module 111 for the ONU 130, which is not specifically limited in this embodiment.
  • FIG. 2 is a flowchart of a bandwidth allocation method provided by an embodiment of the present application.
  • the bandwidth allocation method is applied to a terminal.
  • the bandwidth allocation method includes, but is not limited to, steps S210 and step S220.
  • Step S210 monitoring the service attributes of the ONU.
  • Step S220 in the case that the service attribute is the low-latency attribute, adopt the first dynamic bandwidth allocation DBA mode to allocate the bandwidth authorization amount for the ONU, wherein the first DBA mode is to allocate multiple burst bandwidth entries in a single frame signal. DBA mode.
  • the OLT can monitor the service attribute of the ONU, and in the case that the service attribute of the ONU is a low-latency attribute, the first DBA mode can be used to allocate the bandwidth authorization amount for the ONU, that is, the bandwidth authorization amount can be allocated to the ONU by using a single frame.
  • the DBA mode that allocates multiple burst bandwidth entries in the signal allocates the bandwidth authorization amount to the ONU, which can realize the work of dynamically allocating the bandwidth authorization amount for low-latency services without changing the ONU, and effectively improve the bandwidth utilization rate.
  • the ONU monitored by the OLT may be an ONU confirmed to be used for low-latency services, or may be all ONUs, and the ONU monitored by the OLT is not specifically limited in this embodiment.
  • the OLT monitors the service attributes of an ONU that can be used for low-latency services, and in the case that the service attributes of the ONU are low-latency attributes, the first DBA mode can be used to allocate bandwidth authorization to the ONU. , that is, the bandwidth authorization amount can be allocated to the ONU through the DBA mode that allocates multiple burst bandwidth entries in a single frame signal, and the work of dynamically allocating the bandwidth authorization amount for low-latency services can be realized without modifying the ONU. And effectively improve broadband utilization.
  • the OLT can monitor all ONUs, and when the monitoring determines that there is an ONU that can be used for low-latency services, the OLT can start monitoring the service attributes of the ONU that can be used for low-latency services, and When the service attribute of the ONU is monitored as a low-latency attribute, the first DBA mode can be used to allocate the bandwidth authorization amount to the ONU, that is, the ONU can be allocated a DBA mode for the ONU by allocating multiple burst bandwidth entries in a single frame signal. Allocating the authorized amount of bandwidth can realize the work of dynamically allocating authorized amount of bandwidth for low-latency services without changing the ONU, and effectively improve the utilization rate of bandwidth.
  • the number of burst broadband entries in the multiple burst broadband entries allocated to a single data frame may be 5, may be 6, or may be other numbers, and the number of burst broadband entries is not specified in this embodiment. limited.
  • the DBA mode that allocates multiple burst bandwidth entries in a single frame signal is a dynamic bandwidth allocation mode that is different from the common DBA mode, which is usually a fixed-bandwidth DBA mode (for The ONU allocates a fixed bandwidth), it can be DBA mode with guaranteed bandwidth (guarantee the bandwidth available when the ONU needs to use the bandwidth), it can be the DBA mode with the maximum bandwidth (the upper limit of the bandwidth available when the ONU uses the bandwidth), or It is a DBA mode with a combination of guaranteed bandwidth and maximum bandwidth, or a DBA mode with a combination of fixed bandwidth + guaranteed bandwidth + maximum bandwidth.
  • step S230 using the first DBA mode to perform bandwidth allocation on the ONU, including but not limited to step S310, step S320 and step S330:
  • Step S310 Allocate a burst bandwidth grant corresponding to the maximum bandwidth for each burst bandwidth entry within a preset DBA period.
  • the OLT may allocate a burst bandwidth grant corresponding to the maximum bandwidth for each burst bandwidth entry in the DBA mode in which a single data frame allocates multiple burst bandwidth entries. and continuously allocate the maximum burst bandwidth authorization amount to the ONU within the preset DBA period, which can meet the bandwidth requirements of the low-latency service of the ONU to the greatest extent.
  • Step S320 Obtain the DBRu reported by the ONU, wherein the DBRu carries the bandwidth requirement parameter.
  • the OLT may acquire the uplink DBRu reported by the ONU, and the OLT may acquire the bandwidth requirement parameter from the acquired DBRu, thereby confirming the bandwidth requirement of the low-latency service of the ONU.
  • Step S330 after the preset DBA period ends, allocate a burst bandwidth grant amount to each burst bandwidth entry according to the bandwidth requirement parameter.
  • the OLT may allocate a bandwidth grant amount to each burst bandwidth entry according to the bandwidth requirement parameter in the DBRu, so as to meet the bandwidth requirement of the low-latency service of the ONU.
  • the OLT can allocate multiple burst bandwidth entries in a single data frame for each burst bandwidth in the DBA mode.
  • the entry allocates the burst bandwidth authorization amount corresponding to the maximum bandwidth, and continuously allocates the maximum burst bandwidth authorization amount to the ONU within the preset DBA period.
  • the OLT can obtain the DBRu reported by the ONU, and the OLT can obtain the bandwidth requirement from the obtained DBRu.
  • the OLT can allocate the bandwidth authorization amount to the ONU according to the bandwidth requirement parameters in the DBRu, and can dynamically realize the bandwidth authorization amount allocation for low-latency services without modifying the ONU. And effectively improve broadband utilization.
  • the DBA module may be notified to adjust the DBA mode, that is, switch the DBA mode to the first DBA mode (distribute multiple bursts in a single frame signal).
  • DBA mode of bandwidth entries for example the number of burst bandwidth entries allocated for a single data frame may be 6.
  • the DBA module of the OLT can allocate a burst bandwidth authorization amount corresponding to the maximum bandwidth for the low-latency service of the ONU.
  • the maximum burst bandwidth authorization amount is within 10ms, the service data accumulated on the current ONU side can be quickly dispatched to the OLT, which can reduce the large delay that may be introduced due to the existence of cached services; then, the DBA module no longer allocates the low-latency service of the ONU corresponding to the maximum bandwidth.
  • Burst bandwidth authorization amount the DBA module can obtain the bandwidth requirement parameters in the DBRu reported by the ONU, and allocate the bandwidth authorization amount for each burst bandwidth entry according to the bandwidth requirement parameters, which can be dynamically implemented without modifying the ONU. Allocate bandwidth authorization for low-latency services, and effectively improve bandwidth utilization.
  • the DBA cycle refers to the allocation cycle of the dynamic bandwidth authorization amount of the ONU by the DBA module of the OLT.
  • step S330 includes, but is not limited to, steps S410 and S420:
  • Step S410 Determine the total bandwidth authorization amount according to the bandwidth requirement parameter.
  • the DBA module of the OLT may determine, according to the bandwidth requirement parameter of the ONU, the total bandwidth authorization amount that needs to be allocated for the low-latency service of the ONU.
  • step S420 the total bandwidth authorization amount is evenly allocated to each burst bandwidth entry.
  • the DBA module of the OLT can evenly distribute the determined total bandwidth authorization amount to each burst bandwidth entry, so as to meet the bandwidth requirements of the low-latency service and effectively improve the bandwidth utilization rate.
  • the DBA module of the OLT can determine the total bandwidth authorization amount that needs to be allocated for the low-latency service of the ONU according to the bandwidth requirement parameter of the ONU, and then use the determined total bandwidth.
  • the authorized amount is evenly allocated to each burst bandwidth entry, and the average bandwidth authorization amount allocated to each burst bandwidth entry can be used to allocate the ONU, which can dynamically realize the low-latency service without modifying the ONU.
  • the bandwidth allocation work, and effectively improve the bandwidth utilization.
  • step S430 includes but is not limited to the following steps:
  • Step S510 in the case that the bandwidth authorization amount allocated by the burst bandwidth entry is less than the threshold bandwidth authorization amount, adjust the bandwidth authorization amount allocated by the burst bandwidth entry to the threshold bandwidth authorization amount.
  • the OLT can The bandwidth authorization amount allocated by the entry is adjusted to the threshold bandwidth authorization amount. For example, the bandwidth authorization amount allocated by the burst bandwidth entry is adjusted to the minimum Ethernet packet length value, and then the adjusted bandwidth authorization amount can be used to allocate the ONU. , which can reduce the large delay that may be introduced due to the existence of cached services.
  • step S210 includes but is not limited to the following steps:
  • Step S610 obtain the service data of the ONU
  • Step S620 acquiring attribute parameters in the service data
  • Step S630 judging the attribute type of the attribute parameter.
  • the OLT can obtain the service data of the ONU, and then determine the attribute type of the attribute parameter according to the attribute parameter of the service obtained from the service data, so as to confirm whether the service is a low-latency service.
  • the OLT can obtain attribute parameters in service data through ACL, and can also obtain attribute parameters in service data through bit stream. This embodiment does not specifically limit the manner in which the OLT obtains attribute parameters in service data.
  • the step S630 includes but is not limited to the following steps:
  • Step S710 compare the attribute parameter with a preset attribute threshold, and determine that the attribute type of the attribute parameter is a low-latency attribute when the attribute parameter is not greater than the preset attribute threshold and lasts for a preset duration.
  • the OLT may compare the attribute parameter of the service obtained from the service data with a preset attribute threshold, and if the attribute parameter is not greater than the preset attribute threshold and lasts for a preset time period, then the attribute parameter can be determined.
  • the attribute type of the attribute parameter is low-latency attribute, that is, it is determined that the ONU has low-latency services.
  • the OLT can allocate bandwidth authorization to the ONU through the DBA mode of allocating multiple bursts for a single data frame, which can be used without modifying the ONU. Under the circumstance, it can dynamically realize the allocation of bandwidth authorization for low-latency services, and effectively improve the bandwidth utilization.
  • the preset attribute threshold may be a numerical value, a numerical value range, or a numerical value corresponding to a list, which is not specifically limited in this embodiment.
  • the preset attribute threshold value is a numerical value, it may be a standard value or a minimum Ethernet packet length value, which is not specifically limited in this embodiment.
  • the bandwidth allocation method includes but is not limited to the following steps:
  • Step S810 the OLT monitors the ONU
  • Step S820 determine whether there is an ONU that enables the low-latency service, if so, go to step S840, if not, go to step S830;
  • Step S830 the DBA module of the OLT performs bandwidth authorization amount allocation to the ONU in the second DBA mode
  • Step S840 the OLT monitors the service attributes of the ONUs that have opened the low-latency service
  • Step S850 judging whether the service attribute of the ONU that has opened the low-latency service is the low-latency attribute, if so, go to step S860, if not, go to step S830;
  • Step S860 switching the DBA mode of the DBA module from the second DBA mode to the first DBA mode
  • Step S870 assigning a burst bandwidth grant corresponding to the maximum bandwidth for each burst bandwidth entry within a preset DBA period
  • Step S880 obtaining the DBRu reported by the ONU, wherein the DBRu carries a bandwidth requirement parameter
  • Step S890 after the preset DBA period ends, allocate a burst bandwidth grant amount for each burst bandwidth entry according to the bandwidth requirement parameter, and perform step S850.
  • the OLT continuously monitors the ONU to determine whether there is an ONU that enables low-latency services, and if there is no ONU for low-latency services, the DBA module can use the second DBA mode to allocate bandwidth authorization to the ONU. , if there are ONUs with low-latency services, the OLT can monitor the service attributes of the ONUs with low-latency services to determine whether the service attributes of the ONUs are low-latency attributes. If not, the DBA module can keep the second The DBA mode allocates bandwidth authorization to the ONU.
  • the DBA mode of the DBA module can be switched from the second DBA mode to the first DBA mode, that is, the DBA module can allocate multiple burst DBA modes in a single data frame as ONUs Allocate the maximum bandwidth, and continuously allocate the maximum bandwidth to the ONU within the preset DBA period.
  • the OLT can obtain the DBRu reported by the ONU, and the OLT can obtain the bandwidth requirement parameters from the obtained DBRu, and then the OLT can The bandwidth requirement parameter in DBRu allocates the bandwidth authorization amount to the ONU.
  • the OLT monitors that the ONU does not have low-latency services and lasts for a certain period of time, for example, after 100ms, it can determine that the ONU has no low-latency services. It can realize the allocation of bandwidth authorization for common services and low-latency services without changing the ONU, and effectively improve the bandwidth utilization.
  • the second DBA mode may be a DBA mode with a fixed bandwidth (allocating a fixed bandwidth to the ONU), a DBA mode with guaranteed bandwidth (guaranteing the bandwidth available when the ONU needs to use the bandwidth), or a maximum bandwidth
  • the DBA mode (the upper limit of the bandwidth available when the ONU uses the bandwidth) can be a DBA mode combining guaranteed bandwidth and maximum bandwidth, or a DBA mode combining fixed bandwidth + guaranteed bandwidth + maximum bandwidth. There is no specific limitation.
  • this embodiment does not specifically limit when the OLT monitors that the ONU does not have low-latency services and lasts for a certain period of time, which can be set according to actual conditions.
  • the optical line terminal 900 includes a memory 920 , a processor 910 and a computer program stored in the memory 920 and running on the processor 910 .
  • the processor and memory may be connected by a bus or otherwise.
  • the memory can be used to store non-transitory software programs and non-transitory computer-executable programs.
  • the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device.
  • the memory may include memory located remotely from the processor, which may be connected to the processor through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the non-transitory software programs and instructions required to implement the information processing method of the above embodiment are stored in the memory, and when executed by the processor, the bandwidth allocation method in the above embodiment is executed, for example, the above-described method in FIG. 2 is executed.
  • an embodiment of the present application also provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by a processor or controller, for example, by the above-mentioned Executed by a processor in the optical line terminal in the embodiment, the processor can execute the bandwidth allocation method in the above-mentioned embodiment, for example, the above-described method steps S210 to S220 in FIG. 2 and method step S310 in FIG. 3 are executed to S330 , method steps S410 to S420 in FIG. 4 , method steps S510 in FIG. 5 , method steps S610 to S630 in FIG. 6 , method steps S710 in FIG. 7 , method steps S810 to S890 in FIG. 8 .
  • the embodiment of the present application includes: monitoring the service attribute of the ONU; in the case that the service attribute is a low-latency attribute, using a first dynamic bandwidth allocation DBA mode to allocate a bandwidth authorization amount to the ONU, wherein the first DBA Mode is DBA mode that allocates multiple burst bandwidth entries in a single frame signal.
  • the OLT monitors the service attributes of the ONU, and when the service attributes of the ONU are low-latency attributes, the first DBA mode is used to allocate the bandwidth authorization amount to the ONU, that is, by allocating multiple burst bandwidth entries in a single frame signal
  • the DBA mode of DBA allocates the authorized amount of bandwidth to the ONU, which can realize the work of dynamically allocating authorized amount of bandwidth for low-latency services without changing the ONU, and effectively improve the bandwidth utilization rate.
  • Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium used to store desired information and which can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

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Abstract

一种带宽分配方法、光线路终端及计算机可读存储介质，其中带宽分配方法包括：监控ONU的业务属性（S210）；在所述业务属性为低时延属性的情况下，采用第一动态带宽分配DBA模式为所述ONU分配带宽授权量，其中，所述第一DBA模式为在单个帧信号中分配多个突发带宽条目的DBA模式（S220）。

Description

带宽分配方法、光线路终端及计算机可读存储介质
相关申请的交叉引用
本申请基于申请号为202110255320.1、申请日为2021年03月09日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请实施例涉及但不限于通信领域，尤其涉及一种带宽分配方法、光线路终端及计算机可读存储介质。
背景技术
当前无源光网络技术经过多年发展，千兆无源光网络(GPON，Gigabit-Capable Passive Optical Networks)已经在市场上超大规模应用，相关技术应用早已经成熟。随着无源光网络(10G PON，Passive Optical Network)规模部署，新业务对于带宽和时延需求越来越高，对于PON网络的业务中上行方向的突发，可以对突发周期性分配带宽，而其时延和带宽分配周期以及分配频率具有相关性，即周期越小，分配带宽频率越快，则时延就越小，但是在无源光网络的报文帧结构中，每个突发带宽均有其固定开销，如果分配周期越小，分配频率越快，每个带宽映射(BWMap)信息中分配多次带宽授权，虽然时延降低了，但影响整个带宽利用率。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本申请实施例提出一种带宽分配方法、光线路终端及计算机可读存储介质。
第一方面，本申请实施例提供了一种带宽分配方法，包括：监控ONU的业务属性；在所述业务属性为低时延属性的情况下，采用第一动态带宽分配DBA模式为所述ONU分配带宽授权量，其中，所述第一DBA模式为在单个帧信号中分配多个突发带宽条目的DBA模式。
第二方面，本申请实施例还提供了一种光线路终端，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现前述第一方面的带宽分配方法。
第三方面，本申请实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有信息处理程序，所述信息处理程序被处理器执行时实现前述第一方面的带宽分配方法。
附图说明
图1是本申请一个实施例提供的用于执行带宽分配方法的系统架构的示意图；
图2是本申请一个实施例提供的带宽分配方法的流程图；
图3是本申请一个实施例提供的带宽分配方法中采用第一DBA模式对所述ONU分配带宽授权量的流程图；
图4是本申请一个实施例提供的带宽分配方法中根据带宽要求参数为每一个突发带宽条目分配突发带宽授权量的流程图；
图5是本申请一个实施例提供的带宽分配方法中利用每个突发带宽条目所分配到的平均带宽授权量为ONU进行分配的流程图；
图6是本申请一个实施例提供的带宽分配方法中监控ONU的业务属性的流程图；
图7是本申请一个实施例提供的带宽分配方法中判断属性参数的属性类型的流程图；
图8是本申请另一个实施例提供的带宽分配方法的示意图；
图9是本申请一个实施例提供的光线路终端的示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
需要说明的是，虽然在装置示意图中进行了功能模块划分，在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于装置中的模块划分，或流程图中的顺序执行所示出或描述的步骤。说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
本申请实施例提供了一种带宽分配方法、光线路终端及计算机可读存储介质，其中带宽分配方法包括：监控ONU的业务属性；在所述业务属性为低时延属性的情况下，采用第一动态带宽分配DBA模式为所述ONU分配带宽授权量，其中，所述第一DBA模式为在单个帧信号中分配多个突发带宽条目的DBA模式。OLT对ONU的业务属性进行监控，在ONU的业务属性为低时延属性的情况下，采用第一DBA模式为该ONU分配带宽授权量，即通过在单个帧信号中分配多个突发带宽条目的DBA模式为该ONU分配带宽授权量，能够在无需改造ONU的情况下，实现为低时延业务动态分配带宽授权量的工作，并有效提高宽带利用率
下面结合附图，对本申请实施例作进一步阐述。
如图1所示，图1是本申请一个实施例提供的用于执行带宽分配方法的系统架构的示意图。在图1的示例中，该系统架构包括OLT110、光分路器120和ONU130，OLT110通过光分路器120与ONU130进行光连接，OLT110包括DBA模块111，OLT110可以通过DBA模块111为ONU130进行动态带宽分配。例如，在GPON上行传输过程中，不同ONU130的上行数据在各自支路光纤向上传输，经过光分路器120后数据汇合。上行传输可以采用时分复用方式传输数据，即上行链路可以被分成不同的时隙，每个ONU130在不同的时隙发送数据，其中，OLT110统一调度和授权，ONU130被动响应。OLT110可以通过DBA模块111对ONU130进行实时监控，OLT110根据拥塞和当前带宽利用情况，以及配置情况为ONU130进行动态的带宽分配。
需要说明的是，系统架构中设置的OLT110和ONU130的数量可以根据实际设置，本实施例对其不作具体限定。
需要说明的是，一个OLT110可以与1个ONU130连接，可以与2个ONU130连接，也可以与3个ONU130连接，本实施例对ONU130的数量不作具体限定。
需要说明的是，ONU130能够分配的最大带宽可以根据实际设置，本实施例对其不作具体限定。
需要说明的是，OLT110通过DBA模块111为ONU130进行动态带宽分配的方式可以是OLT110根据对ONU130的监控结果通过DBA模块111为ONU130进行动态带宽分配，也可以是OLT110根据ONU130上报的DBRu的带宽要求参数通过DBA模块111为ONU130进行动态带宽分配，本实施例对其不作具体限定。
本申请实施例描述的系统架构以及应用场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域技术人员可知，随着系统架构的演变和新应用场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
基于上述系统架构的结构，提出本申请的信息处理方法的各个实施例。
在一个实施例中，参照图2，图2为本申请实施例提供的带宽分配方法的流程图，该带宽分配方法应用于终端，在一实施例中，该带宽分配方法包括但不限于有步骤S210和步骤S220。
步骤S210，监控ONU的业务属性。
步骤S220，在业务属性为低时延属性的情况下，采用第一动态带宽分配DBA模式为ONU分配带宽授权量，其中，第一DBA模式为在单个帧信号中分配多个突发带宽条目的DBA模式。
在一实施例中，OLT可以对ONU的业务属性进行监控，在ONU的业务属性为低时延属性的情况下，可以采用第一DBA模式为该ONU分配带宽授权量，即可以通过在单个帧信号中分配多个突发带宽条目的DBA模式为该ONU分配带宽授权量，能够在无需改造ONU的情况下，实现为低时延业务动态分配带宽授权量的工作，并有效提高宽带利用率。
需要说明的是，OLT监控的ONU可以是确认为可以用于低时延业务的ONU，也可以是所有的ONU，本实施例对OLT监控的ONU不作具体限定。
在一实施例中，OLT对可以用于低时延业务的ONU的业务属性进行监控，在ONU的业务属性为低时延属性的情况下，可以采用第一DBA模式为该ONU分配带宽授权量，即可以通过在单个帧信号中分配多个突发带宽条目的DBA模式为该ONU分配带宽授权量，能够在无需改造ONU的情况下，实现为低时延业务动态分配带宽授权量的工作，并有效提高宽带利用率。
在一实施例中，OLT可以对所有ONU进行监控，当监控确定存在可以用于低时延业务的ONU时，OLT可以启动对该可以用于低时延业务的ONU的业务属性进行监控，在监控到ONU的业务属性为低时延属性的情况下，可以采用第一DBA模式为该ONU分配带宽授权量，即可以通过在单个帧信号中分配多个突发带宽条目的DBA模式为该ONU分配带宽授权量，能够在无需改造ONU的情况下，实现为低时延业务动态分配带宽授权量的工作，并有效提高宽带利用率。
需要说明的是，单数据帧分配多个突发宽带条目中突发宽带条目的数量可以是5个，可以是6个，也可以是其他数量，本实施例对突发宽带条目的数量不作具体限定。
需要说明的是，在单个帧信号中分配多个突发带宽条目的DBA模式是一种区别于普通的DBA模式的动态分配带宽的模式，而普通的DBA模式通常为固定带宽的DBA模式(对ONU分配固定带宽)，可以是保证带宽的DBA模式(保证在ONU需要使用带宽时可获得的带宽)，可以是最大带宽的DBA模式(在ONU使用带宽时可获得的带宽上限值)，可以是保证带宽和 最大带宽组合的DBA模式，也可以是固定带宽+保证带宽+最大带宽组合的DBA模式。
参照图3，步骤S230中的采用第一DBA模式对ONU进行带宽分配，包括但不限于有步骤S310、步骤S320和步骤S330：
步骤S310，在预设DBA周期内为每一个突发带宽条目分配对应于最大带宽的突发带宽授权量。
在一实施例中，当确定业务属性为低时延属性，OLT可以在单数据帧分配多个突发带宽条目的DBA模式下为每一个突发带宽条目分配对应于最大带宽的突发带宽授权量，并在预设DBA周期内持续为ONU分配最大突发带宽授权量，能够最大满足ONU的低时延业务的带宽需要。
步骤S320，获取由ONU上报的DBRu，其中，DBRu携带有带宽要求参数。
在一实施例中，在预设DBA周期之后，OLT可以获取由ONU上报的上行DBRu，OLT可以从获取的DBRu中获取带宽要求参数，从而确认ONU的低时延业务的带宽需求。
步骤S330，在预设DBA周期结束后，根据带宽要求参数为每一个突发带宽条目分配突发带宽授权量。
在一实施例中，OLT可以根据DBRu中的带宽要求参数为每一个突发带宽条目分配带宽授权量，以满足ONU的低时延业务的带宽需求。
在一实施例中，通过采用上述步骤S310至步骤S330，在业务属性为低时延属性的情况下，OLT可以通过在单数据帧分配多个突发带宽条目的DBA模式为每一个突发带宽条目分配对应于最大带宽的突发带宽授权量，并在预设DBA周期内持续为ONU分配最大突发带宽授权量，OLT可以获取由ONU上报的DBRu，OLT可以从获取的DBRu中获取带宽要求参数，然后在预设DBA周期之后，OLT可以根据DBRu中的带宽要求参数为ONU分配带宽授权量，可以在无需改造ONU的情况下，能够动态实现对低时延业务的带宽授权量分配工作，并有效提高宽带利用率。
在一实施例中，当通过OLT的监控确定ONU的业务属性为低时延属性，则可以通知DBA模块调整DBA模式，即将DBA模式切换为第一DBA模式(在单个帧信号分配多个突发带宽条目的DBA模式)，例如单数据帧分配的突发带宽条目的数量可以是6个。在第一DBA模式下，在预设的DBA周期内，OLT的DBA模块的可以为该ONU的低时延业务分配对应于最大带宽的突发带宽授权量，例如，最大突发带宽授权量为10ms，能够将当前ONU侧累积的业务数据快速调度至OLT，能够降低可能由于存在缓存业务而引入的较大时延；然后，DBA模块不再为ONU的低时延业务分配对应于最大带宽的突发带宽授权量，DBA模块可以获取由ONU上报的DBRu中的带宽要求参数，并根据带宽要求参数为每一个突发带宽条目分配带宽授权量，可以在无需改造ONU的情况下，能够动态实现对低时延业务的带宽授权量分配工作，并有效提高宽带利用率。
需要说明的是，DBA周期是指OLT的DBA模块对ONU的动态带宽授权量的分配周期。
参照图4，在一实施例中，步骤S330包括但不限于有步骤S410和步骤S420：
步骤S410，根据带宽要求参数确定总带宽授权量。
在一实施例中，OLT的DBA模块可以根据ONU的带宽要求参数确定为该ONU的低时延业务需要分配的总带宽授权量。
步骤S420，将总带宽授权量平均分配到每一个突发带宽条目。
在一实施例中，OLT的DBA模块可以将已确定的总带宽授权量平均分配到每一个突发带宽条目，满足低时延业务的带宽需求的同时有效提高宽带利用率。
在一实施例中，通过采用上述步骤S410至步骤S420，OLT的DBA模块可以根据ONU的带宽要求参数确定该ONU的低时延业务所需要分配的总带宽授权量，然后将已确定的总带宽授权量平均分配到每一个突发带宽条目，可以利用每个突发带宽条目所分配到的平均带宽授权量为ONU进行分配，可以在无需改造ONU的情况下，能够动态实现对低时延业务的带宽分配工作，并有效提高宽带利用率。
参照图5，在一实施例中，步骤S430包括但不限于如下步骤：
步骤S510，在突发带宽条目所分配到的带宽授权量小于阈值带宽授权量情况下，将突发带宽条目所分配到的带宽授权量调整为阈值带宽授权量。
在一实施例中，当突发带宽条目所分配到的带宽授权量小于阈值带宽授权量，例如突发带宽条目所分配到的带宽授权量小于最小以太网包长值，OLT可以将突发带宽条目所分配到的带宽授权量调整为阈值带宽授权量，例如将突发带宽条目所分配到的带宽授权量调整为最小以太网包长值，然后可以利用调整后的带宽授权量为ONU进行分配，能够降低可能由于存在缓存业务而引入的较大时延。
参照图6，在一实施例中，步骤S210包括但不限于如下步骤：
步骤S610，获取ONU的业务数据；
步骤S620，获取业务数据中的属性参数；
步骤S630，判断属性参数的属性类型。
在一实施例中，OLT可以获取ONU的业务数据，根据从业务数据中获取的该业务的属性参数，然后判断该属性参数的属性类型，从而能够确认该业务是否为低时延业务。
需要说明的是，OLT可以通过ACL获取业务数据中的属性参数，也可以通过比特码流获取业务数据中的属性参数，本实施例对OLT获取业务数据中的属性参数的方式不作具体限定。
参照图7，在一实施例中，该步骤S630包括但不限于如下步骤：
步骤S710，将属性参数与预设属性阈值进行比较，在属性参数不大于预设属性阈值并持续预设时长的情况下，确定属性参数的属性类型为低时延属性。
在一实施例中，OLT可以将从业务数据中获取的该业务的属性参数与预设属性阈值进行比较，在属性参数不大于预设属性阈值并持续预设时长的情况下，那么可以确定该属性参数的属性类型为低时延属性，即确定该ONU存在低时延业务，OLT可以对该ONU通过针对单数据帧分配多个突发的DBA模式进行带宽授权量分配，可以在无需改造ONU的情况下，能够动态实现对低时延业务的带宽授权量分配工作，并有效提高宽带利用率。
需要说明的是，预设属性阈值可以是数值，可以是数值范围，也可以是列表对应数值，本实施例对其不作具体限定。
需要说明的是，当预设属性阈值为数值时，可以是标准值，也可以是最小以太网包长值，本实施例对其不作具体限定。
参照图8，在一实施例中，带宽分配方法包括但不限于如下步骤：
步骤S810，OLT监控ONU；
步骤S820，判断是否存在开启低时延业务的ONU，若是，执行步骤S840，若否，执行步骤S830；
步骤S830，OLT的DBA模块以第二DBA模式对ONU进行带宽授权量分配；
步骤S840，OLT监控已开启低时延业务的ONU的业务属性；
步骤S850，判断已开启低时延业务的ONU的业务属性是否为低时延属性，若是，执行步骤S860，若否，执行步骤S830；
步骤S860，将DBA模块的DBA模式从第二DBA模式切换为第一DBA模式；
步骤S870，在预设DBA周期内为每一个突发带宽条目分配对应于最大带宽的突发带宽授权量；
步骤S880，获取由ONU上报的DBRu，其中，DBRu携带有带宽要求参数；
步骤S890，在预设DBA周期结束后，根据带宽要求参数为每一个突发带宽条目分配突发带宽授权量，执行步骤S850。
在一实施例中，OLT对ONU进行持续监控，判断是否存在开启低时延业务的ONU，如果不存在低时延业务的ONU，那么DBA模块可以以第二DBA模式对ONU进行带宽授权量分配，如果存在低时延业务的ONU，那么OLT可以对存在低时延业务的ONU的业务属性进行监控，判断ONU的业务属性是否为低时延属性，如果不是，那么DBA模块可以保持以第二DBA模式对ONU进行带宽授权量分配，如果是，那么DBA模块的DBA模式可以从第二DBA模式切换为第一DBA模式，即DBA模块可以在单数据帧分配多个突发的DBA模式为ONU分配最大带宽，并在预设DBA周期内持续为ONU分配最大带宽，在预设DBA周期之后，OLT可以获取由ONU上报的DBRu，OLT可以从获取的DBRu中获取带宽要求参数，然后OLT可以根据DBRu中的带宽要求参数为ONU分配带宽授权量，当OLT监控到该ONU不存在低时延业务，并且持续一定时间后，例如持续100ms后，可以判断该ONU没有低时延业务。可以在无需改造ONU的情况下，能够实现对普通业务和低时延业务进行带宽授权量分配工作，并有效提高宽带利用率。
需要说明的是，第二DBA模式可以是固定带宽的DBA模式(对ONU分配固定带宽)，可以是保证带宽的DBA模式(保证在ONU需要使用带宽时可获得的带宽)，可以是最大带宽的DBA模式(在ONU使用带宽时可获得的带宽上限值)，可以是保证带宽和最大带宽组合的DBA模式，也可以是固定带宽+保证带宽+最大带宽组合的DBA模式，本实施例对其不作具体限定。
需要说明的是，本实施例不对当OLT监控到该ONU不存在低时延业务，并且持续一定时间中的一定时间进行具体限定，可以根据实际情况进行设置。
另外，本申请的一个实施例还提供了一种光线路终端，参照图9，光线路终端900包括存储器920、处理器910及存储在存储器920上并可在处理器910上运行的计算机程序。
处理器和存储器可以通过总线或者其他方式连接。
存储器作为一种非暂态计算机可读存储介质，可用于存储非暂态软件程序以及非暂态性计算机可执行程序。此外，存储器可以包括高速随机存取存储器，还可以包括非暂态存储器，例如至少一个磁盘存储器件、闪存器件、或其他非暂态固态存储器件。在一些实施方式中，存储器可以包括相对于处理器远程设置的存储器，这些远程存储器可以通过网络连接至该处理器。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
实现上述实施例的信息处理方法所需的非暂态软件程序以及指令存储在存储器中，当被处理器执行时，执行上述实施例中的带宽分配方法，例如，执行以上描述的图2中的方法步骤S210至S220、图3中的方法步骤S310至S330、图4中的方法步骤S410至S420、图5中的方法步骤S510、图6中的方法步骤S610至S630，图7中的方法步骤S710，图8中的方法 步骤S810至S890。
此外，本申请的一个实施例还提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机可执行指令，该计算机可执行指令被一个处理器或控制器执行，例如，被上述实施例中光线路终端中的一个处理器执行，可使得处理器执行上述实施例中的带宽分配方法，例如，执行以上描述的图2中的方法步骤S210至S220、图3中的方法步骤S310至S330、图4中的方法步骤S410至S420、图5中的方法步骤S510、图6中的方法步骤S610至S630，图7中的方法步骤S710，图8中的方法步骤S810至S890。
本申请实施例包括：监控ONU的业务属性；在所述业务属性为低时延属性的情况下，采用第一动态带宽分配DBA模式为所述ONU分配带宽授权量，其中，所述第一DBA模式为在单个帧信号中分配多个突发带宽条目的DBA模式。OLT对ONU的业务属性进行监控，在ONU的业务属性为低时延属性的情况下，采用第一DBA模式为该ONU分配带宽授权量，即通过在单个帧信号中分配多个突发带宽条目的DBA模式为该ONU分配带宽授权量，能够在无需改造ONU的情况下，实现为低时延业务动态分配带宽授权量的工作，并有效提高宽带利用率。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统可以被实施为软件、固件、硬件及其适当的组合。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。
以上是对本申请的若干实施进行了具体说明，但本申请并不局限于上述实施方式，熟悉本领域的技术人员在不违背本申请精神的前提下还可作出种种的等同变形或替换，这些等同的变形或替换均包含在本申请权利要求所限定的范围内。

Claims (10)

  1. 一种带宽分配方法，应用于光线路终端，包括：
    监控光网络单元ONU的业务属性；
    在所述业务属性为低时延属性的情况下，采用第一动态带宽分配DBA模式为所述ONU分配带宽授权量，其中，所述第一DBA模式为在单个帧信号中分配多个突发带宽条目的DBA模式。
  2. 根据权利要求1所述的带宽分配方法，其中，所述采用第一DBA模式为所述ONU分配带宽授权量，包括：
    在预设DBA周期内为每一个所述突发带宽条目分配对应于最大带宽的突发带宽授权量；
    获取由所述ONU上报的上行动态带宽报告DBRu，其中，所述DBRu携带有带宽要求参数；
    在预设DBA周期结束后，根据所述带宽要求参数为每一个所述突发带宽条目分配突发带宽授权量。
  3. 根据权利要求2所述的带宽分配方法，其中，所述根据所述带宽要求参数为每一个所述突发带宽条目分配突发带宽授权量，包括：
    根据所述带宽要求参数确定总带宽授权量；
    将所述总带宽授权量平均分配到每一个所述突发带宽条目。
  4. 根据权利要求3所述的带宽分配方法，其中，在将所述总带宽授权量平均分配到每一个所述突发带宽条目之后，还包括：
    在所述突发带宽条目所分配到的带宽授权量小于阈值带宽授权量情况下，将所述突发带宽条目所分配到的带宽授权量调整为所述阈值带宽授权量。
  5. 根据权利要求1所述的带宽分配方法，其中，所述监控所述ONU的业务属性，包括：
    获取所述ONU的业务数据；
    获取所述业务数据中的属性参数；
    判断所述属性参数的属性类型。
  6. 根据权利要求5所述的带宽分配方法，其中，所述判断所述属性参数的属性类型，包括：
    将所述属性参数与预设属性阈值进行比较，在所述属性参数不大于所述预设属性阈值并持续预设时长的情况下，确定所述属性参数的属性类型为低时延属性。
  7. 根据权利要求5所述的带宽分配方法，其中，所述获取所述业务数据中的属性参数，包括：
    通过访问控制列表ACL获取所述业务数据中的属性参数；
    或者，
    通过比特码流获取所述业务数据中的属性参数。
  8. 根据权利要求1至7任意一项所述的带宽分配方法，其中，在采用第一动态带宽分配DBA模式为所述ONU分配带宽授权量之后，所述方法还包括：
    在确定所述业务属性为非低时延属性的情况下，将所述第一DBA模式切换为第二DBA模式，其中，所述第二DBA模式与所述第一DBA模式不同。
  9. 一种光线路终端，包括：存储器、处理器及存储在存储器上并可在处理器上运行的计 算机程序，其中，所述处理器执行所述计算机程序时实现如权利要求1至8中任意一项所述的带宽分配方法。
  10. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1至8中任意一项所述的带宽分配方法。
PCT/CN2022/074702 2021-03-09 2022-01-28 带宽分配方法、光线路终端及计算机可读存储介质 WO2022188579A1 (zh)

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