WO2023000870A1 - 带宽分配方法、olt、onu、终端和存储介质 - Google Patents

带宽分配方法、olt、onu、终端和存储介质 Download PDF

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WO2023000870A1
WO2023000870A1 PCT/CN2022/098778 CN2022098778W WO2023000870A1 WO 2023000870 A1 WO2023000870 A1 WO 2023000870A1 CN 2022098778 W CN2022098778 W CN 2022098778W WO 2023000870 A1 WO2023000870 A1 WO 2023000870A1
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bandwidth
onu
channel
olt
service data
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PCT/CN2022/098778
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English (en)
French (fr)
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张伟良
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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

Definitions

  • the embodiments of the present application relate to the field of passive optical networks, and in particular to a bandwidth allocation method, an OLT, an ONU, a terminal, and a storage medium.
  • the uplink bandwidth allocation method of the latest generation broadband passive optical integrated access standard (Gigabit-Capable Passive Optical Networks, referred to as GPON) series of the Union Telecom Standard Branch the uplink bandwidth is allocated to the transmission container (Transmission Container, referred to as T-CONT) , the optical line terminal (Optical Line Terminal, OLT for short) sets the bandwidth type in the uplink T-CONT to fixed bandwidth, guaranteed bandwidth, non-guaranteed bandwidth, and best-effort bandwidth, etc. Different types of services are transmitted through different T-CONTs
  • the device obtains the uplink bandwidth and sends the service through the corresponding uplink bandwidth. Among them, the bandwidth is guaranteed.
  • bandwidth allocation method when using the bandwidth allocation method to allocate bandwidth to the ONU, but for the process of re-allocating the guaranteed bandwidth to the T-CONT of the ONU when the service is restarted, because the bandwidth allocation of the OLT has a certain scheduling cycle, in a certain scheduling The bandwidth will be re-allocated after the scheduling period, so that it is possible to allocate part of the bandwidth to the T-CONT of the ONU for the ONU to send services or report service bandwidth requests.
  • the ONU cannot perform service transmission, which will cause the ONU to perform service transmission. Larger delays degrade user experience.
  • the embodiment of the present application provides a bandwidth allocation method, which is applied to an optical line terminal OLT, and the OLT communicates with several optical network units (ONUs). Allocation request and/or service data; if the ONU identity can be identified, allocate corresponding bandwidth to the ONU corresponding to the ONU identity according to the allocation request and/or service data; if the ONU identity cannot be identified, then according to the preset
  • the bandwidth channel allocates corresponding bandwidth for one or several ONUs.
  • the embodiment of the present application also provides a bandwidth allocation method, which is applied to an optical network unit ONU, and the method includes: if the bandwidth required by the service traffic of the ONU is greater than the bandwidth allocated by the optical line terminal OLT to the ONU, Then send the allocation request and/or service data to the OLT through the preset bandwidth channel.
  • the embodiment of the present application also provides an OLT, the OLT is communicatively connected to several optical network units ONU, including: a receiving module, configured to receive the allocation request and/or service data sent by the ONU through a preset bandwidth channel ;
  • the allocation module is used to allocate corresponding bandwidth to the ONU corresponding to the ONU identification according to the allocation request and/or service data if the ONU identification can be identified; if the ONU identification cannot be identified, then according to the preset
  • the bandwidth channel allocates corresponding bandwidth to the one or several ONUs.
  • the embodiment of the present application also provides an ONU, including: a detection module, configured to detect whether the bandwidth required by the service traffic of the ONU is greater than the bandwidth allocated for the ONU by the optical line terminal OLT; After the detection module detects that the bandwidth required by the ONU's service traffic is greater than the bandwidth allocated by the OLT to the ONU, it sends an allocation request and/or service data to the OLT through a preset bandwidth channel.
  • a detection module configured to detect whether the bandwidth required by the service traffic of the ONU is greater than the bandwidth allocated for the ONU by the optical line terminal OLT; After the detection module detects that the bandwidth required by the ONU's service traffic is greater than the bandwidth allocated by the OLT to the ONU, it sends an allocation request and/or service data to the OLT through a preset bandwidth channel.
  • the embodiment of the present application also provides a terminal, including: at least one processor; and a memory connected in communication with the at least one processor; wherein, the memory stores instructions that can be executed by the at least one processor , the instruction is executed by the at least one processor, so that the at least one processor can execute the above-mentioned bandwidth allocation method applied to the OLT, or execute the above-mentioned bandwidth allocation method applied to the ONU.
  • the embodiment of the present application also proposes a computer-readable storage medium, which stores a computer program, and is characterized in that, when the computer program is executed by a processor, the above-mentioned bandwidth allocation method applied to the OLT is realized, or the above-mentioned method applied to the ONU is realized. Bandwidth allocation method.
  • Fig. 1 is a flowchart one of the bandwidth allocation method provided by the embodiment of the present application.
  • FIG. 2 is a second flow chart of the bandwidth allocation method provided by the embodiment of the present application.
  • FIG. 3 is a flowchart three of the bandwidth allocation method provided by the embodiment of the present application.
  • FIG. 4 is a flowchart four of the bandwidth allocation method provided by the embodiment of the present application.
  • FIG. 5 is a flowchart five of the bandwidth allocation method provided by the embodiment of the present application.
  • FIG. 6 is a flowchart six of the bandwidth allocation method provided by the embodiment of the present application.
  • FIG. 7 is a flowchart seven of the bandwidth allocation method provided by the embodiment of the present application.
  • Fig. 8 is a schematic structural diagram of the OLT provided by the embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of an ONU provided in an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • the main purpose of the embodiment of the present application is to propose a bandwidth allocation method, OLT, ONU, terminal, and storage medium, so as to avoid the ONU being unable to perform service transmission within the scheduling period, thereby causing a large time delay when the ONU performs service transmission problem, thereby improving the user experience.
  • Embodiments of the present application relate to a bandwidth allocation method, which is applied to an optical line terminal OLT, and the OLT is connected to several optical network units ONUs in communication, as shown in Figure 1, specifically comprising the following steps:
  • Step 101 receiving the allocation request and/or service data sent by the ONU through a preset bandwidth channel.
  • the optical network unit management control interface ONU Management and Control Interface
  • PLOAM physical layer operation management and maintenance
  • the bandwidth allocation map bandwidth map (BWmap for short)
  • other management channels pre-allocate a bandwidth channel to the ONU.
  • the correspondence between the ONU and the bandwidth channel can be a one-to-one relationship or a one-to-many relationship.
  • Each ONU can have a transmission service When recovering, send allocation requests and/or service data to the OLT on its corresponding bandwidth channel.
  • a bandwidth channel can be pre-assigned to each ONU without bandwidth through the management channel. Specifically, an independent bandwidth channel can be allocated to each ONU without bandwidth. At this time, the bandwidth channel and the ONU One-to-one correspondence; it is also possible to group the ONUs that have not been allocated bandwidth, and assign a bandwidth channel to each ONU group. At this time, the bandwidth channel corresponds to the ONU group one-to-one, and each ONU in the same ONU group shares a bandwidth channel.
  • the OLT When the ONU needs to resume service transmission, if the ONU is dedicated to a bandwidth channel, then in this step, the OLT receives the distribution request and/or service data sent by the ONU through the dedicated bandwidth channel; if the ONU shares a bandwidth channel with other ONUs bandwidth channel, then in this step, the OLT receives the allocation request and/or service data sent by the ONU through the bandwidth channel corresponding to the ONU group to which the ONU belongs.
  • the ONU identifier refers to a related identifier that can uniquely identify the ONU, such as ONU-ID, Alloc-ID, Port-ID, etc., which will not be listed here.
  • the OLT can identify the ONU according to the bandwidth channel that sends the service data through the one-to-one correspondence between the bandwidth channel and the ONU Get the corresponding ONU identifier, or parse the ONU identifier from the service data, and enter step 103.
  • the OLT receives service data through a shared bandwidth channel, since the bandwidth channel corresponds to an ONU group, and there are multiple ONUs in the corresponding ONU group that have not allocated bandwidth, when only one ONU sends service data or multiple
  • the OLT can identify the ONU representation from the corresponding service data, and enter step 103.
  • the OLT may not be able to identify the ONU group. For the service data sent by an ONU, it is determined that the ONU identity cannot be identified, and the step 104 is entered.
  • step 103 In an example of receiving an allocation request through a bandwidth channel, in the allocation request received by the OLT, it is necessary to judge each byte of the allocation request to see whether the allocation request carries an ONU identifier. When identifying and correctly parsing the ONU identification, perform step 103, and when the allocation request does not carry the ONU identification, or the bandwidth channel that transmits the allocation request corresponds to multiple ONUs and cannot identify the ONU identification, perform step 104. In another example, if the bandwidth channel corresponds to an ONU, the OLT may recognize that the received allocation request is an allocation request sent by the ONU corresponding to the bandwidth channel, and step 103 is executed.
  • Step 103 allocate corresponding bandwidth to the ONU corresponding to the ONU ID according to the allocation request and/or service data, for example, allocate corresponding guaranteed bandwidth to the ONU corresponding to the ONU ID.
  • the OLT can recognize the ONU ID, it means that the OLT can know which ONU the allocation request is sent from. According to the size of the allocated bandwidth in the allocation request, the corresponding bandwidth will be allocated to the ONU sending the allocation request directly. If the allocated bandwidth size is not carried in the allocation request, a default bandwidth can be allocated to the ONU sending the allocation request , such as allocating the guaranteed bandwidth of the ONU to the ONU.
  • the OLT can identify the ONU identity, then according to the amount of received service data, the corresponding bandwidth is allocated to the ONU sending service data through the bandwidth channel .
  • the ONU sends service data to the OLT through a preset bandwidth channel, it can also send an allocation request as required.
  • the ONU when the ONU needs to resume service transmission, it sends an allocation request to the OLT through its corresponding bandwidth channel, so as to instruct the OLT to allocate guaranteed bandwidth for the ONU.
  • the allocation request may also carry information about the allocated bandwidth size, that is, the ONU notifies the OLT of the bandwidth size required by the ONU through a bandwidth signaling.
  • the ONU when the transmission service resumes, the ONU may directly send service data through the preset bandwidth channel, so as to instruct the OLT to allocate guaranteed bandwidth for the ONU. That is, if the OLT detects burst traffic in the preset bandwidth channel, it will allocate guaranteed bandwidth to the ONU.
  • the OLT can also calculate the bandwidth required by the ONU according to the burst traffic.
  • the bandwidth allocated by the corresponding ONU is too large, and the bandwidth allocated by the corresponding ONU can be adjusted down to improve bandwidth utilization Rate.
  • Step 104 allocate corresponding bandwidth to one or several ONUs according to the preset bandwidth channel, for example, allocate bandwidth with a guaranteed bandwidth size to the ONUs related to the preset bandwidth channel.
  • the bandwidth channel corresponds to multiple ONUs in an ONU group
  • the OLT does not know which ONU the allocation request is sent from
  • multiple ONUs allocate corresponding bandwidth to ensure that ONUs that need to perform service transmission can obtain corresponding bandwidth for service transmission.
  • the bandwidth channel corresponds to an ONU group
  • the corresponding guaranteed bandwidth will be allocated to the remaining ONUs that have not been allocated the corresponding bandwidth.
  • bandwidth status information and service flow information returned by several ONUs may also be received.
  • the bandwidth status information is whether there is idle state bandwidth in the bandwidth used by the ONU, if it exists, which part of the bandwidth is idle, and the service flow information is how much bandwidth the ONU still needs to transmit the remaining service flow.
  • the bandwidth ranges corresponding to several optical network units ONU are adjusted according to the bandwidth state information and service flow information.
  • the OLT after receiving the bandwidth status information and service flow information returned by the ONU, the OLT will automatically adjust the bandwidth range corresponding to the ONU according to the idleness and required bandwidth of each ONU.
  • the bandwidth range includes location and size information, so as to further improve the utilization rate of bandwidth resources
  • the OLT before receiving the allocation request and/or service data sent by the ONU through the preset bandwidth channel, it also includes: sending the bandwidth range corresponding to the bandwidth channel to the ONU; channel response message, continue to send the bandwidth range corresponding to the bandwidth channel to the ONU. That is to say, after the OLT sends the bandwidth range of the bandwidth channel corresponding to each ONU to the corresponding ONU, if the ONU has service data to transmit, it will send the allocation request and/or service data through the allocated bandwidth channel.
  • the request and/or service data is equivalent to a channel response message. After receiving the channel response message returned by the ONU, the OLT will determine that the ONU corresponding to the bandwidth channel needs to allocate bandwidth, and trigger step 102 .
  • the OLT cannot receive the channel response message returned by the ONU, and will continue to send the bandwidth range corresponding to the bandwidth channel to the ONU to ensure that subsequent ONUs can send allocations through the bandwidth channel when they need to restore business data Request and/or Business Data.
  • the allocation request and/or service data sent by the ONU is received through the preset bandwidth channel; And/or business data allocates the corresponding bandwidth for the ONU corresponding to the ONU identification; if the ONU identification cannot be identified, then allocate the corresponding bandwidth for the one or several ONUs according to the preset bandwidth channel, so that the ONU
  • the bandwidth can be requested from the OLT through the bandwidth channel, and the OLT responds quickly after receiving the allocation request and/or service data, and allocates the corresponding bandwidth for the ONU; so that the embodiment of the present application can improve the bandwidth allocation of the ONU efficiency, reduce the delay of ONU business transmission, and solve the problem of re-allocating bandwidth to the ONU after a certain scheduling cycle, so that the ONU cannot perform business transmission during the scheduling cycle, and thus generate a large amount of traffic during business transmission. Latency technical issues.
  • the embodiment of the present application relates to a bandwidth allocation method, which is applied on the optical line terminal OLT, and the OLT communicates with several optical network units ONUs.
  • the ONUs correspond to bandwidth channels one by one, as shown in Figure 2 , including the following steps:
  • Step 201 select a part of the guaranteed bandwidth from the guaranteed bandwidth range corresponding to the ONU as the bandwidth channel corresponding to the ONU.
  • the corresponding guaranteed bandwidth, non-guaranteed bandwidth or best-effort bandwidth has been allocated for each ONU.
  • the configured bandwidth channel can be called the reserved bandwidth.
  • the bandwidth channel selected in this way has a one-to-one relationship with the ONU.
  • the bandwidth channel can be allocated to the ONU at a fixed location and duration, or it can be flexibly configured according to the internal bandwidth scheduling of the OLT.
  • the format of the channel is shown in Table 1:
  • Table 1 The format of the bandwidth channel when the correspondence between the bandwidth channel and the ONU is one-to-one
  • Alloc-ID refers to the T-CONT identifier corresponding to the ONU
  • Flags refers to configuration parameters
  • StartTime refers to the starting position of the bandwidth channel
  • GrantTime refers to the size of the bandwidth channel
  • FWI refers to Forced Wakeup Indication
  • forced wakeup prompt Burst Profile refers to the uplink burst configuration
  • HEC refers to the verification of the message.
  • Step 202 receiving the allocation request and/or service data sent by the ONU through the bandwidth channel.
  • this step is substantially the same as step 101 in the embodiment of the present application, and details are not repeated here.
  • Step 203 judging whether the ONU identity can be identified.
  • this step is substantially the same as step 102 in the embodiment of the present application, and details are not repeated here.
  • Step 204 allocate corresponding bandwidth to the ONU corresponding to the ONU identifier.
  • this step is substantially the same as step 103 in the embodiment of the present application, and details are not repeated here. .
  • Step 205 allocate corresponding bandwidth to one or several ONUs.
  • this step is substantially the same as step 104 in the embodiment of the present application, and details are not repeated here.
  • a corresponding bandwidth channel can also be set for each ONU connected to the OLT in communication, which can ensure that any ONU can quickly send the allocation request or Service data is sent to the OLT.
  • the embodiment of the present application relates to a bandwidth allocation method, which is applied on the optical line terminal OLT, and the OLT communicates with several optical network units ONU.
  • the ONU group corresponds to the bandwidth channel one by one, as shown in FIG. 3 Specifically, the following steps are included:
  • step 301 a plurality of ONUs are grouped according to preset grouping rules, and ONU groups are obtained.
  • the ONUs that have not been allocated bandwidth can be grouped according to the preset grouping rules, and the unallocated The ONUs with bandwidth are divided into different groups, and then the bandwidth channels are configured in units of groups.
  • the preset grouping rules can be classified according to the service traffic corresponding to each ONU, or can be classified according to the service category corresponding to each ONU. Classification can also be performed according to the priority corresponding to each ONU.
  • Step 302 select a part of the guaranteed bandwidth from the guaranteed bandwidth range corresponding to the ONU group as the bandwidth channel corresponding to the ONU group.
  • the guaranteed bandwidth range corresponding to an ONU group is the sum of the guaranteed bandwidth ranges corresponding to all ONUs in the ONU group. Select a part of bandwidth as the bandwidth channel of this ONU grouping, the corresponding relationship of the bandwidth channel and ONU at this moment is one-to-many, a plurality of ONUs share a bandwidth channel, wherein, the format of the bandwidth channel of the present embodiment is as described in table 2,
  • the T-CONT value corresponding to field 5-6 will be allocated to multiple ONUs, that is, one T-CONT value corresponds to multiple ONUs, so as to achieve the purpose of ONU group sharing bandwidth channel:
  • Table 2 The format of the bandwidth channel when the corresponding relationship between the bandwidth channel and the ONU is a pair
  • Step 303 receiving the allocation request and/or service data sent by the ONU through the bandwidth channel.
  • this step is substantially the same as step 101 in the embodiment of the present application, and details are not repeated here.
  • Step 304 judging whether the ONU identity can be identified.
  • this step is substantially the same as step 102 in the embodiment of the present application, and details are not repeated here.
  • Step 305 allocate corresponding bandwidth to the ONU corresponding to the ONU identifier.
  • this step is substantially the same as step 103 in the embodiment of the present application, and details are not repeated here.
  • Step 306 allocate corresponding bandwidth to one or several ONUs.
  • this step is substantially the same as step 104 in the embodiment of the present application, and details are not repeated here.
  • bandwidth channels and ONUs when the corresponding relationship between bandwidth channels and ONUs can be set as one-to-many, the waste of bandwidth resources caused by setting reserved bandwidth for each ONU can be avoided, and the utilization rate of bandwidth resources in this application can be improved.
  • the embodiment of the present application relates to a bandwidth allocation method, which is applied on the optical line terminal OLT, and the OLT is connected to several optical network units ONUs in communication, as shown in Figure 4, specifically comprising the following steps:
  • Step 401 assigning a corresponding bandwidth channel to an ONU that has no bandwidth allocated, can be implemented through step 201, or can be implemented through steps 301 and 302, which will not be repeated here.
  • Step 402 receiving the allocation request and/or service data sent by the ONU through the bandwidth channel.
  • this step is substantially the same as step 101 in the embodiment of the present application, and details are not repeated here.
  • Step 403 judging whether the ONU identity can be identified.
  • this step is substantially the same as step 102 in the embodiment of the present application, and details are not repeated here.
  • Step 404 allocate corresponding bandwidth to the ONU corresponding to the ONU identifier.
  • this step is roughly the same as step 103 in the embodiment of the present application, and will not be described here one by one, but after the bandwidth is allocated for each ONU, the ONU may perform step 406 when performing service transmission.
  • Step 405 allocate corresponding bandwidth for one or several ONUs.
  • this step is substantially the same as step 104 in the embodiment of the present application, and will not be described here one by one, but after the bandwidth is allocated for each ONU, the ONU may perform step 406 when performing service transmission.
  • Step 406 acquiring the usage frequency of the bandwidth channel or the service flow of the ONU or the ONU group corresponding to the bandwidth channel.
  • the OLT can obtain the usage frequency of the bandwidth channels by counting the number of times the ONUs send allocation requests and/or service data or occupying bandwidth; When the ONU or the ONU is performing service transmission, the service flow when the ONU or ONU group is performing service transmission is obtained.
  • Step 407 adjust the corresponding range of the bandwidth channel according to the usage frequency or service flow.
  • the bandwidth range of the bandwidth channel can be appropriately reduced to release a part of the bandwidth range of the bandwidth channel so that It is used by other ONUs.
  • the usage frequency of the bandwidth channel is higher than the preset frequency threshold, it means that the usage frequency of the bandwidth channel is high, and there is no need to adjust the bandwidth range of the bandwidth channel; or, when the bandwidth channel
  • the bandwidth channel When the service flow of the corresponding ONU or ONU group is lower than the preset service threshold, it means that the bandwidth of the ONU or ONU group is sufficient, and there is no need to adjust the bandwidth channel, and when the service flow of the ONU or ONU group corresponding to the bandwidth channel
  • it is higher than the preset threshold it means that the transmission pressure of the bandwidth corresponding to the ONU or ONU group is relatively high, and the bandwidth range of the bandwidth channel can be appropriately reduced to release a part of the bandwidth range of the bandwidth channel so that it can be used by the ONU or ONU group. in the transmission business.
  • step 405 and step 406 can be placed at any position after step 401, and can also be applied to execute steps 301 to 306 in the embodiment of the present application.
  • the size of the bandwidth channel can be dynamically adjusted according to the usage frequency of the bandwidth channel and the corresponding ONU or ONU grouping traffic situation of the reserved bandwidth, so as to avoid the excessive bandwidth channel. Bandwidth resources are wasted, and the utilization rate of bandwidth resources is improved.
  • the embodiment of the present application relates to a bandwidth allocation method, which is applied on the optical line terminal OLT, and the OLT communicates with several optical network units (ONUs).
  • a bandwidth channel wherein the bandwidth channel is also used for other ONUs connected to the OLT to transmit services. As shown in Figure 5, it specifically includes the following steps:
  • Step 501 designate a time slot including location and size as a bandwidth channel corresponding to the ONU, wherein the bandwidth channel is also used for other ONUs to transmit services.
  • a periodic bandwidth is selected as the bandwidth channel corresponding to the ONU, and the periodic bandwidth can be allocated once and then need not be allocated repeatedly.
  • the aperiodic bandwidth may also be selected as the bandwidth channel corresponding to the ONU, and the aperiodic bandwidth needs to be pre-allocated before each use.
  • the specified bandwidth as the periodic bandwidth
  • you can specify a periodic bandwidth within the bandwidth range corresponding to the ONU such as specifying a time slot in the upstream 125 ⁇ s superframe
  • the ONU and the bandwidth channel are in a one-to-one relationship.
  • You can also specify a periodic bandwidth (such as specifying a certain time slot in the upstream 125 ⁇ s superframe) as the bandwidth channel of all ONUs in an ONU group.
  • bandwidth channel is still a one-to-many relationship, but the bandwidth channel is not only used to make the ONU send an allocation request, but also enables other ONUs connected to the OLT to perform service transmission, wherein the bandwidth channel of this embodiment
  • Table 3 The format of is shown in Table 3:
  • Step 502 receiving service data transmitted by other ONUs through the bandwidth channel.
  • Step 503 performing forward error correction on the service data transmitted by other ONUs in the bandwidth channel.
  • Step 504 if the forward error correction check is wrong, error correction is performed on the service data sent by other ONUs. If the error is related to the bandwidth channel, it is determined that the ONU corresponding to the bandwidth channel has sent an allocation request.
  • the allocation request will not be sent in the bandwidth channel, and the OLT will pre-process the transmitted service data.
  • the result of the error correction verification is that the verification is successful, and it can be known that the bandwidth channel does not include the bandwidth allocation request sent by the ONU. If the ONU corresponding to the bandwidth channel needs to resume the transmission of service data, and sends an allocation request on the bandwidth channel, the service data sent on the bandwidth channel will be disturbed because it is sent to the allocation request at the same time.
  • the result of the forward error correction check of the service data is when the check is wrong, and since the allocation request is sent in a certain time slot in the uplink 125 ⁇ s superframe, the location of the interference is determined, so the OLT can determine The error is related to the bandwidth channel, and it is determined that the ONU corresponding to the bandwidth channel has sent an allocation request.
  • Step 505 judging whether the ONU identity is recognized.
  • this step is substantially the same as step 102 in the embodiment of the present application, and details are not repeated here.
  • Step 506 allocate corresponding bandwidth to the ONU corresponding to the ONU identifier.
  • this step is substantially the same as step 103 in the embodiment of the present application, and details are not repeated here.
  • Step 507 allocate corresponding bandwidth to one or several ONUs.
  • this step is substantially the same as step 104 in the embodiment of the present application, and details are not repeated here.
  • the bandwidth channel in addition to receiving allocation requests, can also be used for the ONU to transmit services, which can improve the utilization rate of bandwidth resources.
  • forward error correction can be performed on the signal transmitted in the bandwidth channel to reduce the interference encountered during signal transmission, and to confirm whether there is an allocation request to be sent.
  • the embodiment of the present application relates to a bandwidth allocation method, which is applied to an optical line terminal OLT, and the OLT communicates with several optical network units ONU, as shown in Figure 6, specifically including the following steps:
  • Step 601 receiving the allocation request and/or service data sent by the ONU through a preset bandwidth channel.
  • this step is substantially the same as step 101 in the embodiment of the present application, and details are not repeated here.
  • Step 602 judging whether the ONU identity can be identified.
  • this step is substantially the same as step 102 in the embodiment of the present application, and details are not repeated here.
  • Step 603 calculate the bandwidth required by the ONU, and obtain the guaranteed bandwidth range of the ONU corresponding to the ONU identifier according to the ONU identifier.
  • the ONU ID can be identified, it is necessary to calculate the bandwidth required by the ONU according to the allocation request and/or service data, and obtain the guaranteed bandwidth range of the ONU corresponding to the ONU ID.
  • Step 604 judging whether the guaranteed bandwidth range is greater than or equal to the required bandwidth.
  • step 605 is performed. If the guaranteed bandwidth range If it is smaller than the required bandwidth size, go to step 606.
  • Step 605 select a part of the guaranteed bandwidth from the guaranteed bandwidth range and allocate it to the ONU corresponding to the ONU identifier.
  • the guaranteed bandwidth range is greater than or equal to the required bandwidth size, it means that the guaranteed bandwidth range corresponding to the ONU itself is sufficient for bandwidth allocation, and the required bandwidth size is directly selected from the guaranteed bandwidth range corresponding to the ONU itself to the ONU .
  • Step 606 allocate all guaranteed bandwidth within the guaranteed bandwidth range to the ONU corresponding to the ONU ID, and select a part of the bandwidth from the bandwidth range corresponding to other ONUs in the ONUs to allocate to the ONU corresponding to the ONU ID.
  • the guaranteed bandwidth range is less than the required bandwidth size, it means that the guaranteed bandwidth range corresponding to the ONU itself is not enough for bandwidth allocation, and it is necessary to allocate all the bandwidth within the guaranteed range corresponding to the ONU itself to the ONU first, and then Scheduling part of the bandwidth from the idle bandwidth of other ONUs to this ONU.
  • Step 607 allocate corresponding bandwidth to one or several ONUs.
  • this step is substantially the same as step 104 in the embodiment of the present application, and details are not repeated here.
  • the allocation strategy when allocating bandwidth to the ONU, it is determined in conjunction with the size of the required allocated bandwidth and the size of the guaranteed bandwidth of the ONU.
  • the required allocated bandwidth is small, the guaranteed bandwidth of the ONU It is enough to obtain it within; and when the required allocation bandwidth is large, it is necessary to allocate the bandwidth of other ONUs to this ONU, and the allocation strategy can be flexibly adjusted according to the ONU's own situation and the required bandwidth size to improve the utilization of bandwidth resources.
  • the embodiment of the present application also relates to a bandwidth allocation method, which is applied to an optical network unit (ONU), and the specific process is shown in FIG. 7 .
  • ONU optical network unit
  • step 701 it is detected whether the bandwidth required by the service flow of the ONU is greater than the bandwidth allocated by the OLT for the ONU. If the required bandwidth is greater than the bandwidth allocated by the OLT for the ONU, then enter step 702; if not greater than the bandwidth allocated by the OLT for the ONU, then return to step 701.
  • the ONU is an ONU that is currently not allocated bandwidth, that is, the bandwidth allocated to the ONU by the OLT is 0. If this ONU has business data to need to send, because the allocated bandwidth is 0, then the required bandwidth of the business flow of ONU must be greater than the bandwidth that OLT distributes for this ONU, trigger step 702, if this ONU does not have business data to need to send, then When the bandwidth required by the service flow of the ONU is not greater than the bandwidth allocated by the OLT to the ONU, continue to return to step 701.
  • the ONU when the ONU has no data to send, no data will be sent in the preset bandwidth channel, and no allocation request will be sent; when the ONU has data to send, if the preset bandwidth can send data, the data will be sent and sent as needed Allocation request; if the ONU has data to send but the corresponding bandwidth channel is for other ONUs to send service data, or the corresponding bandwidth channel is not enough to send service data, send an allocation request to instruct the OLT to allocate guaranteed bandwidth.
  • step 702 an allocation request and/or service data are sent to the OLT through a preset bandwidth channel, so that the OLT allocates corresponding bandwidth to the ONU according to the allocation request and/or service data.
  • a bandwidth channel can be pre-allocated to the ONU through management channels such as network management unit, OMCI, PLOAM, BWmap, etc., and the corresponding relationship between ONU and bandwidth channel can be a one-to-one relationship or a one-to-many relationship .
  • management channels such as network management unit, OMCI, PLOAM, BWmap, etc.
  • the ONU detects that the bandwidth required for the service traffic to be sent is greater than the bandwidth allocated by the OLT to the ONU, it can send an allocation request to the OLT through the pre-allocated bandwidth channel.
  • the allocation request can carry the allocated bandwidth size, that is, , the ONU notifies the OLT of the bandwidth required by the ONU through a bandwidth signaling.
  • the ONU when the transmission service resumes, the ONU can directly send service data through the preset bandwidth channel, that is, there is burst traffic in the preset bandwidth channel, and the OLT needs to transmit the service data according to the burst traffic after receiving it. Traffic calculates the bandwidth required by the ONU.
  • step 703 the ONU transmits service data in the corresponding bandwidth allocated by the OLT.
  • step 704 may also be included, if the bandwidth required by the service flow of the ONU is less than the corresponding bandwidth, then transmit an idle frame in the preset bandwidth channel, indicating The OLT adjusts the bandwidth corresponding to the ONU. If the service data received through the preset bandwidth channel are all idle frames, it means that the bandwidth allocated by the corresponding ONU is too large, and the bandwidth allocated by the corresponding ONU can be adjusted down to improve bandwidth utilization.
  • This embodiment can improve the efficiency of bandwidth allocation by the ONU, reduce the time delay of ONU service transmission, and solve the problem that the bandwidth allocation of the prior art is to re-allocate the bandwidth to the ONU after a certain scheduling period, so that the ONU cannot be allocated within the scheduling period. Carry out business transmission, and then produce the technical problem of relatively large time delay during business transmission.
  • Embodiments of the present application also relate to an OLT, which is connected to several ONUs in communication, as shown in Figure 8, including:
  • the receiving module 801 is configured to receive the allocation request and/or service data sent by the ONU through a preset bandwidth channel.
  • the allocation module 802 is used to allocate corresponding bandwidth to the ONU corresponding to the ONU identification according to the allocation request and/or service data if the ONU identification can be identified; if the ONU identification cannot be identified, then according to the preset
  • the bandwidth channel allocates corresponding bandwidth for the one or several ONUs.
  • this embodiment is an apparatus embodiment corresponding to the method embodiment in which the above method is applied to the OLT, and this embodiment can be implemented in cooperation with the above method embodiment.
  • the relevant technical details and technical effects mentioned in the foregoing method embodiments are still valid in this implementation manner, and correspondingly, the relevant technologies mentioned in this implementation manner can also be applied in the foregoing method embodiments.
  • Embodiments of the present application also relate to an ONU, as shown in FIG. 9 , including:
  • the detection module 901 is configured to detect whether the bandwidth required by the service flow of the ONU is greater than the bandwidth allocated to the ONU by the OLT.
  • a sending module 902 configured to send an allocation request and/or to the OLT through a preset bandwidth channel after the detection module detects that the bandwidth required by the ONU's service traffic is greater than the bandwidth allocated by the OLT to the ONU Service data, for the OLT to allocate corresponding bandwidth to the ONU according to the allocation request and/or service data.
  • the ONU further includes a transmission module, configured to transmit service data in the corresponding bandwidth allocated by the OLT.
  • this implementation mode is an apparatus embodiment corresponding to the method embodiment in which the above-mentioned method is applied to an ONU, and this implementation mode can be implemented in cooperation with the above-mentioned method embodiment.
  • the relevant technical details and technical effects mentioned in the foregoing method embodiments are still valid in this implementation manner, and correspondingly, the relevant technologies mentioned in this implementation manner can also be applied in the foregoing method embodiments.
  • the embodiment of this application relates to a terminal as shown in Figure 10, including:
  • At least one processor 1001 and, a memory 1002 connected in communication with the at least one processor 1001; wherein, the memory 1002 stores instructions executable by the at least one processor 1001, and the instructions are executed by the at least one processor 1001, so that at least one The processor 1001 can execute the bandwidth allocation method described in any one of the foregoing method embodiments.
  • the memory and the processor are connected by a bus
  • the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors and various circuits of the memory.
  • the bus may also connect together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and therefore will not be further described herein.
  • the bus interface provides an interface between the bus and the transceivers.
  • a transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing means for communicating with various other devices over a transmission medium.
  • the service data processed by the processor is transmitted on the wireless medium through the antenna, and further, the antenna also receives the service data and transmits the service data to the processor.
  • the processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions.
  • the memory can be used to store business data used by the processor when performing operations.
  • the embodiment of the present application relates to a computer-readable storage medium storing a computer program.
  • the above method embodiments are implemented when the computer program is executed by the processor.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disk or optical disk and other media that can store program codes.

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Abstract

本申请提出了一种带宽分配方法、OLT、ONU、终端和存储介质，涉及无源光网络领域。带宽分配方法应用在光线路终端OLT上，所述OLT与若干个光网络单元ONU通信连接，所述方法包括：通过预设的带宽通道接收所述ONU发送的分配请求和/或业务数据；若能识别出ONU标识，则根据分配请求和/或业务数据为与所述ONU标识对应的ONU分配相对应的带宽；若不能识别出ONU标识，则根据预设的带宽通道为一个或若干个光网络单元ONU分配相对应的带宽。

Description

带宽分配方法、OLT、ONU、终端和存储介质
相关申请的交叉引用
本申请基于申请号为“202110815096.7”、申请日为2021年7月19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以引入方式并入本申请。
技术领域
本申请实施例涉及无源光网络领域，特别涉及一种带宽分配方法、OLT、ONU、终端和存储介质。
背景技术
在盟电信标准分局的最新一代宽带无源光综合接入标准(Gigabit-Capable Passive Optical Networks，简称GPON)系列的上行带宽分配方法中，上行带宽分配给传输容器(Transmission Container，简称T-CONT)，光线路终端(Optical Line Terminal，简称OLT)把上行T-CONT中的带宽类型设置为固定带宽、保证带宽、非保证带宽和尽力而为带宽等，不同类型的业务通过不同的T-CONT传输器获得上行带宽并通过响应的上行带宽发送业务。其中，保证带宽，当光网络单元(Optical Network Unit，简称ONU)没有对应的业务时，这些带宽会分配给其他ONU的T-CONT，当ONU有对应的业务恢复时，这些带宽会重新分配给该ONU的T-CONT，这种分配方式在一定程度上提高带宽资源的利用率。
然而，使用带宽分配方法给ONU进行带宽分配时，但是对于保证业务重新启动时，保证带宽重新分配给ONU的T-CONT的过程中，由于OLT的带宽分配有一定的调度周期，在一定的调度周期后才会重新分配带宽，才有可能给ONU的T-CONT分配部分带宽用于ONU发送业务或者上报业务带宽请求，而在调度周期内ONU无法进行业务传输，就导致ONU进行业务传输时产生较大的时延，降低用户体验。
发明内容
本申请实施例提供了一种带宽分配方法，应用在光线路终端OLT上，所述OLT与若干个光网络单元ONU通信连接，所述方法包括：通过预设的带宽通道接收所述ONU发送的分配请求和/或业务数据；若能识别出ONU标识，则根据分配请求和/或业务数据为与所述ONU标识对应的ONU分配相对应的带宽；若不能识别出ONU标识，则根据预设的带宽通道为一个或者若干个ONU分配相对应的带宽。
本申请实施例还提供了一种带宽分配方法，应用在光网络单元ONU上，所述方法包括：若所述ONU的业务流量所需的带宽大于光线路终端OLT为所述ONU分配的带宽，则通过预设的带宽通道向所述OLT发送分配请求和/或业务数据。
本申请实施例还提供了一种OLT，所述OLT与若干个光网络单元ONU通信连接，包括：接收模块，用于通过预设的带宽通道接收所述ONU发送的分配请求和/或业务数据；分配模块，用于若能识别出ONU标识，则根据所述分配请求和/或业务数据为与所述ONU标识对应 的ONU分配相对应的带宽；若不能识别出ONU标识，则根据预设的所述带宽通道为所述一个或者若干个光网络单元ONU分配相对应的带宽。
本申请实施例还提供了一种ONU，包括：检测模块，用于检测所述ONU的业务流量所需的带宽是否大于光线路终端OLT为所述ONU分配的带宽；发送模块，用于在所述检测模块检测到所述ONU的业务流量所需的带宽大于OLT为所述ONU分配的带宽后，通过预设的带宽通道向所述OLT发送分配请求和/或业务数据。
本申请实施例还提出了一种终端，包括：至少一个处理器；以及，与所述至少一个处理器通信连接的存储器；其中，所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行上述应用于OLT的带宽分配方法，或执行上述应用于ONU的带宽分配方法。
本申请实施例还提出了一种计算机可读存储介质，存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现上述应用于OLT的带宽分配方法，或实现上述应用于ONU的带宽分配方法。
附图说明
图1是本申请实施例提供的带宽分配方法的流程图一；
图2是本申请实施例提供的带宽分配方法的流程图二；
图3是本申请实施例提供的带宽分配方法的流程图三；
图4是本申请实施例提供的带宽分配方法的流程图四；
图5是本申请实施例提供的带宽分配方法的流程图五；
图6是本申请实施例提供的带宽分配方法的流程图六；
图7是本申请实施例提供的带宽分配方法的流程图七；
图8是本申请实施例提供的OLT的结构示意图；
图9是本申请实施例提供的ONU的结构示意图；
图10是本申请实施例提供的终端的结构示意图。
具体实施方式
本申请实施例的主要目的在于提出一种带宽分配方法、OLT、ONU、终端和存储介质，以避免在调度周期内ONU无法进行业务传输，进而导致ONU进行业务传输时产生较大的时延的问题，从而提高了用户体验。
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请的各实施例进行详细的阐述。然而，本领域的普通技术人员可以理解，在本申请各实施例中，为了使读者更好地理解本申请而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施例的种种变化和修改，也可以实现本申请所要求保护的技术方案。以下各个实施例的划分是为了描述方便，不应对本申请的具体实现方式构成任何限定，各个实施例在不矛盾的前提下可以相互结合相互引用。
本申请的实施例涉及一种带宽分配方法，应用在光线路终端OLT上，OLT与若干个光网络单元ONU通信连接，如图1所示，具体包括以下步骤：
步骤101，通过预设的带宽通道接收ONU发送的分配请求和/或业务数据。
具体地说，可以通过网络管理单元、光网络单元管理控制接口(ONU Management and  Control Interface，简称OMCI)、物理层操作管理维护(physical layer operation,administration and maintenance，简称PLOAM)通道、带宽分配图(bandwidth map，简称BWmap)等管理通道对ONU预先分配一个带宽通道，ONU和带宽通道的对应关系可以是一对一的关系，也可以是一对多的关系，每个ONU都可以在有传输业务恢复时，在其对应的带宽通道上向OLT发送分配请求和/或业务数据。
在一个例子中，可以通过管理通道预先为未分配有带宽的各ONU分配一个带宽通道，具体地，可以为未分配有带宽的各ONU分别分配一个独立的带宽通道，此时带宽通道与ONU一一对应；也可以对未分配有带宽的ONU分组后，为各ONU组分别分配一个带宽通道，此时带宽通道与ONU组一一对应，同一个ONU组中的各ONU共享一个带宽通道。当ONU需要恢复业务传输时，若ONU是专享一个带宽通道的，则在本步骤中OLT通过专享的带宽通道接收ONU发送的分配请求和/或业务数据；若ONU是与其他ONU共享一个带宽通道的，则在本步骤中OLT通过该ONU所属的ONU组对应的带宽通道，接收该ONU发送的分配请求和/或业务数据。
步骤102，判断是否能识别出ONU标识。ONU标识是指可以唯一识别ONU的相关标识，例如ONU-ID，Alloc-ID，Port-ID等，在此不一一列举。
在一个通过带宽通道接收到业务数据的例子中，若OLT是通过专享的带宽通道接收到业务数据的，则OLT可通过带宽通道与ONU一一对应的关系，根据发送业务数据的带宽通道识别出对应的ONU标识，或者从业务数据中解析出ONU标识，进入步骤103。若OLT是通过共享的带宽通道接收到业务数据的，由于带宽通道是与一个ONU组对应的，且对应的ONU组中存在多个ONU均未分配带宽，当只有一个ONU发送业务数据或者多个ONU发送的业务数据彼此不重叠时，OLT能够从相应的业务数据中识别出ONU表示，进入步骤103，但是当多个ONU发送业务数据彼此重叠时，OLT可能无法识别出是该ONU组中哪一个ONU发送的业务数据，则判定不能识别出ONU标识，进入步骤104。
在一个通过带宽通道接收到分配请求的例子中，OLT所接收的分配请求中，需要对分配请求的各个字节进行判断，看该分配请求中是否携带有ONU标识，当分配请求中携带有ONU标识并正确解析出ONU标识时，执行步骤103，当分配请求中不携带ONU标识，或者传输该分配请求的带宽通道对应多个ONU而无法识别出ONU标识，执行步骤104。在另一个例子中，若带宽通道对应一个ONU，则OLT可识别出接收到的分配请求为该带宽通道对应的ONU发送的分配请求，执行步骤103。
步骤103，根据分配请求和/或业务数据为与ONU标识对应的ONU分配相对应的带宽，例如，为与ONU标识对应的ONU分配对应的保证带宽。
在一个例子中，若通过预设的带宽通道接收的是分配请求，且OLT能识别出ONU标识，说明OLT是可以知晓该分配请求是由哪一个ONU发送过来的，若分配请求中携带有分配带宽大小，则直接根据分配请求中的分配带宽大小给发送该分配请求的ONU分配相对应的带宽，若分配请求中未携带有分配带宽大小，则可以给发送该分配请求的ONU分配一个默认带宽，例如将ONU的保证带宽都分配给该ONU。
在另一个例子中，若通过预设的带宽通道接收的是业务数据，且OLT能识别出ONU标识，则根据接收到的业务数据量为通过该带宽通道发送业务数据的ONU分配相对应的带宽。在ONU通过预设的带宽通道向OLT发送业务数据的情况下，还可以根据需要发送分配请求。
也就是说，ONU在需要恢复业务传输时，通过其对应的带宽通道向OLT发送分配请求，以指示OLT为该ONU分配保证带宽。另外，该分配请求中也可以携带有分配带宽大小的信息，即，ONU通过一个带宽信令向OLT通知该ONU所需要的带宽大小。在另一个例子中，ONU可以在有传输业务恢复时，通过该预设的带宽通道直接发送业务数据，以指示OLT为该ONU分配保证带宽。即，OLT若在该预设的带宽通道中检测到突发流量，则为该ONU分配保证带宽，另外，OLT还可以根据突发流量计算该ONU所需的带宽大小。
在另一个例子中，若通过预设的带宽通道接收的业务数据均为空闲帧，则说明对应的ONU所分配的带宽过大，可以将对应的ONU所分配的带宽调小，以提高带宽利用率。
步骤104，根据预设的带宽通道为一个或者若干个ONU分配相对应的带宽，例如，为预设的带宽通道相关的ONU分配保证带宽大小的带宽。
在一个例子中，当带宽通道对应一个ONU组中的多个ONU时，且OLT并不知晓该分配请求是由哪一个ONU发送过来的，则需要给与该带宽通道对应的ONU组中的一个或多个ONU分配相对应的带宽，以确保需要进行业务传输的ONU可以得到相对应的带宽来进行业务传输。例如，当带宽通道对应一个ONU组时，若在对应的多个ONU中已存在分配过对应带宽的ONU，则为其余未分配过对应带宽的ONU分配相对应的保证带宽。
在一个例子中，在根据预设的带宽通道为一个或者若干个ONU分配相对应的带宽之后，还可以接收若干个ONU返回的带宽状态信息和业务流量信息。
具体地说，由于并不是每一个ONU都需要进行业务传输，就会导致一部分带宽资源的浪费，因此，可以在给所有的ONU分配带宽之后，接收每一个ONU返回的带宽状态信息和业务流量信息，其中，带宽状态信息是在该ONU所使用的带宽中是否存在空余状态的带宽，存在的话，是哪一部分带宽是空闲的，业务流量信息是该ONU传输剩余业务流量还需要多少带宽。根据带宽状态信息和业务流量信息调整若干个光网络单元ONU对应的带宽范围。
具体地说，OLT在接收到ONU返回的带宽状态信息和业务流量信息，会自动根据每一个ONU的空闲程度和所需带宽，对该ONU对应的带宽范围进行调整。通过在分配请求中不携带ONU标识或者识别不出ONU标识场景中，为若干个ONU都分配带宽之后，根据每个ONU返回的带宽状态信息和业务流量信息来动态的调整每个ONU的带宽范围，本申请的实施例中带宽范围均包括位置和大小信息，以此来进一步提高带宽资源的利用率
在另一个例子中，在通过预设的带宽通道接收ONU发送的分配请求和/或业务数据之前还包括：将所述带宽通道对应的带宽范围发送至ONU，若未接收到ONU通过带宽通道返回的通道响应消息，则继续将带宽通道对应的带宽范围发送至ONU。也就是说，OLT在将各个ONU对应的带宽通道的带宽范围发送到对应的ONU之后，若ONU有业务数据要传输，则会通过分配的带宽通道发送分配请求和/或业务数据，发送的分配请求和/或业务数据相当于通道响应消息，OLT接收到ONU返回的通道响应消息后，则会判定该带宽通道对应的ONU需要分配带宽，触发步骤102。若ONU没有业务数据要传输，则OLT无法接收到ONU返回的通道响应消息，则继续将带宽通道对应的带宽范围发送至ONU，以保证后续ONU在需要恢复业务数据时，可以通过带宽通道发送分配请求和/或业务数据。
本实施例，在OLT为与其通信连接的光网络单元ONU分配带宽的过程中，通过预设的带宽通道接收ONU发送的分配请求和/或业务数据；若能识别出ONU标识，则根据分配请求和/或业务数据为与ONU标识对应的ONU分配相对应的带宽；若不能识别出ONU标识，则 根据预设的所述带宽通道为所述一个或者若干个ONU分配相对应的带宽，使得ONU在需要进行业务传输时，可以通过该带宽通道向OLT请求带宽，OLT接收到分配请求和/或业务数据后快速响应，为ONU分配相对应的带宽；使得本申请实施例可以提高ONU进行带宽分配的效率，降低ONU业务传输的时延，解决了带宽分配是在一定的调度周期后才会重新给ONU分配带宽，使得在调度周期内ONU无法进行业务传输，进而在业务传输时产生较大的时延的技术问题。
本申请的实施例涉及一种带宽分配方法，应用在光线路终端OLT上，OLT与若干个光网络单元ONU通信连接，在本实施例中，ONU与带宽通道一一对应，如图2所示，具体包括以下步骤：
步骤201，从ONU对应的保证带宽范围内选取部分保证带宽作为该ONU对应的带宽通道。
具体的说，在为各个ONU配置带宽通道之前，就已经为各个ONU分配好相对应的保证带宽、非保证带宽或尽力而为带宽了，在通过网络管理单元、OMCI、PLOAM、BWmap等管理通道为当前未分配有带宽的各个ONU配置带宽通道时，可以先获取每个ONU对应的保证带宽的带宽范围，从该ONU对应的保证带宽的带宽范围内选择一部分带宽作为该ONU的带宽通道的带宽范围，所选择的这一部分带宽的大小可以是足够让该ONU在这一部分带宽内刚好发送一个物理层操作管理维护消息，也可以是仅仅让该ONU发送若干字节的信号；以这种方式所配置的带宽通道可以称为保留带宽，若无法获取到该ONU对应的保证带宽的带宽范围，可以从该ONU对应的非保证带宽或尽力而为带宽中选取一部分带宽作为该ONU的带宽通道的带宽范围，带宽范围包括位置和大小信息。其中，以这种方式选择的带宽通道与ONU是一对一的关系，该带宽通道可以是固定位置、固定时长且一直配置给ONU的，也可以根据OLT内部带宽的调度情况灵活的配置，带宽通道的格式如表1所示：
表1 当带宽通道与ONU的对应关系为一对一时带宽通道的格式
Figure PCTCN2022098778-appb-000001
其中，Alloc-ID是指ONU对应的T-CONT的标识，Flags是指配置参数，StartTime是指带宽通道的开始位置，GrantTime是指带宽通道的大小，FWI是Forced Wakeup Indication，强制唤醒提示，Burst Profile是指上行突发配置，HEC是指消息的校验。
步骤202，通过带宽通道接收ONU发送的分配请求和/或业务数据。
具体地说，本步骤与本申请实施例中的步骤101大致相同，此处不一一赘述。
步骤203，判断是否能识别出ONU标识。
具体地说，本步骤与本申请实施例中的步骤102大致相同，此处不一一赘述。
步骤204，为与ONU标识对应的ONU分配相对应的带宽。
具体地说，本步骤与本申请实施例中的步骤103大致相同，此处不一一赘述。。
步骤205，为一个或若干个光网络单元ONU分配相对应的带宽。
具体地说，本步骤与本申请实施例中的步骤104大致相同，此处不一一赘述。
本实施例，在其他实施例地基础上，还可以为与OLT通信连接的每一个ONU都设置相 对应的带宽通道，可以保证任意一个ONU在需要进行业务传输时都可以快速的将分配请求或业务数据发送至OLT。
本申请的实施例涉及一种带宽分配方法，应用在光线路终端OLT上，OLT与若干个光网络单元ONU通信连接，在本实施例中，ONU组与带宽通道一一对应，如图3所示，具体包括以下步骤：
步骤301，根据预设的分组规则将多个ONU形成分组，获取ONU分组。
具体的说，当与一个OLT进行通信连接的ONU的数量过多时，还可以在给ONU配置相对应的带宽通道之前，对未分配有带宽的ONU按预设的分组规则进行分组，将未分配有带宽的ONU划分为不同的小组，然后以小组为单位进行带宽通道的配置，其中，预设的分组规则可以是根据各个ONU对应的业务流量进行分类，可以是根据各个ONU对应的业务类别进行分类，也可以根据各个ONU对应的优先级进行分类。
步骤302，从ONU分组对应的保证带宽范围内选取部分保证带宽作为与ONU分组对应的带宽通道。
具体的说，ONU分组对应的保证带宽的范围是该ONU分组里面所有ONU对应的保证带宽范围的总和，确定好ONU分组对应的保证带宽的范围之后，从该ONU分组对应的保证带宽的范围内选择一部分带宽作为该ONU分组的带宽通道，此时的带宽通道和ONU的对应关系是一对多，多个ONU共享一个带宽通道，其中，本实施例的带宽通道的格式如表2所述，当字段9取值为2标识组播时，字段5-6对应的T-CONT值会分配给多个ONU，即一个T-CONT值对应多个ONU，以达到ONU分组共享带宽通道的目的：
表2 当带宽通道与ONU的对应关系为一对所时带宽通道的格式
Figure PCTCN2022098778-appb-000002
步骤303，通过带宽通道接收ONU发送的分配请求和/或业务数据。
具体地说，本步骤与本申请实施例中的步骤101大致相同，此处不一一赘述。
步骤304，判断是否能识别出ONU标识。
具体地说，本步骤与本申请实施例中的步骤102大致相同，此处不一一赘述。
步骤305，为与ONU标识对应的ONU分配相对应的带宽。
具体地说，本步骤与本申请实施例中的步骤103大致相同，此处不一一赘述。
步骤306，为一个或若干个光网络单元ONU分配相对应的带宽。
具体地说，本步骤与本申请实施例中的步骤104大致相同，此处不一一赘述。
本实施例，还可以将带宽通道和ONU的对应关系设置为一对多时，避免为每个ONU都设置保留带宽所带来的带宽资源浪费，提高本申请的带宽资源的利用率。
本申请的实施例涉及一种带宽分配方法，应用在光线路终端OLT上，OLT与若干个光网络单元ONU通信连接，如图4所示，具体包括以下步骤：
步骤401，为未分配有带宽的ONU分配对应的带宽通道，可以通过步骤201实现，也可以通过步骤301和步骤302实现，此处不一一赘述。
步骤402，通过带宽通道接收ONU发送的分配请求和/或业务数据。
具体地说，本步骤与本申请实施例中的步骤101大致相同，此处不一一赘述。
步骤403，判断是否能识别出ONU标识。
具体地说，本步骤与本申请实施例中的步骤102大致相同，此处不一一赘述。
步骤404，为与ONU标识对应的ONU分配相对应的带宽。
具体地说，本步骤与本申请实施例中的步骤103大致相同，此处不一一赘述，但在为各个ONU分配好带宽之后，ONU在进行业务传输时，可以执行步骤406。
步骤405，为一个或若干个ONU分配相对应的带宽。
具体地说，本步骤与本申请实施例中的步骤104大致相同，此处不一一赘述，但在为各个ONU分配好带宽之后，ONU在进行业务传输时，可以执行步骤406。
步骤406，获取带宽通道的使用频率或带宽通道对应的ONU或ONU分组的业务流量。
具体地说，在为各个ONU分配好带宽通道之后，OLT可以通过统计ONU发送分配请求和/或业务数据的次数或者占用带宽情况来获取到带宽通道的使用频率；或者，也可以在带宽通道对应的ONU或ONU进行业务传输时，获取到该ONU或ONU分组进行业务传输时的业务流量。
步骤407，根据使用频率或业务流量调整带宽通道的对应范围。
具体地说，当带宽通道的使用频率低于预设频率阈值时，则说明该带宽通道的使用频率较低，可以适当的缩小该带宽通道的带宽范围，释放一部分带宽通道的带宽范围，使其被其他ONU所使用，相反的，当带宽通道的使用频率高于预设频率阈值时，则说明该带宽通道的使用频率较高，不需要对带宽通道的带宽范围进行调整；或者，当带宽通道对应的ONU或ONU分组的业务流量低于与预设业务阈值时，说明该ONU或ONU分组的带宽足够用，不需要对带宽通道进行调整，而当带宽通道对应的ONU或ONU分组的业务流量高于预设阈值，说明该ONU或ONU分组所对应的带宽的传输压力较大，可以适当的缩小该带宽通道的带宽范围，释放一部分带宽通道的带宽范围，使其可以被ONU或ONU分组用于传输业务。
此处需要注意的是：步骤405和步骤406可以放在步骤401之后的任意一个位置，也可以将其应用在本申请的实施例步骤301至步骤306中执行。
本实施例，还可以在将保证带宽作为带宽通道时，根据带宽通道的使用频率和保留带宽所对应的ONU或ONU分组的业务量情况动态调整带宽通道的大小，避免带宽通道过大而导致的带宽资源浪费，提高带宽资源的利用率。
本申请的实施例涉及一种带宽分配方法，应用在光线路终端OLT上，OLT与若干个光网络单元ONU通信连接，在本实施例中，为ONU指定包括位置和大小的时隙作为对应的带宽 通道，其中，带宽通道还用于供与OLT连接的其他ONU传输业务。如图5所示，具体包括以下步骤：
步骤501，指定包括位置和大小的时隙作为ONU对应的带宽通道，其中，带宽通道还用于供其他ONU传输业务。在一个例子中，选取一个周期带宽作为ONU对应的带宽通道，周期带宽可以一次分配以后不用反复分配。在其他例子中，也可以选取非周期带宽作为ONU对应的带宽通道，非周期带宽需要在每次使用之前预先分配。
以指定的带宽为周期带宽为例，在为ONU设置带宽通道时，可以在ONU所对应的带宽范围内指定一个周期带宽(如指定上行125μs超帧内的某个时隙)作为该ONU的带宽通道，此时ONU和带宽通道是一对一的关系，还可以指定一个周期带宽(如指定上行125μs超帧内的某个时隙)作为一个ONU组内的所有ONU的带宽通道，此时的带宽通道与ONU的对应关系还是一对多的关系，但该带宽通道除了用于使ONU发送分配请求之外，还可以使与OLT连接的其他ONU进行业务传输，其中，本实施例的带宽通道的格式如表3所示：
表3 当带宽通道为125μs超帧周期内的带宽通道的格式
Figure PCTCN2022098778-appb-000003
步骤502，通过带宽通道接收其他ONU传输的业务数据。
步骤503，对带宽通道内的其他ONU传输的业务数据进行前向纠错校验。
步骤504，若前向纠错校验出错，则对其他ONU发送的业务数据进行纠错。如果错误与所述带宽通道相关，则判定带宽通道对应的ONU发送了分配请求。
在一个例子中，当带宽通道内的其他ONU在传输业务数据时，若该带宽通道对应的ONU没有数据需要发送，则不会在该带宽通道内发送分配请求，OLT对传输的业务数据进行前向纠错校验的结果为校验成功，可获知带宽通道内并不包含有ONU发送的带宽分配请求。若该带宽通道对应的ONU因为需要恢复业务数据的传输，而在该带宽通道发送了分配请求，则在该带宽通道发送的业务数据会因为同时发送到分配请求而受到干扰，进而OLT对传输的业务数据进行前向纠错校验的结果为校验出错时，而由于分配请求是在上行125μs超帧内的某个时隙中发送的，因此干扰的位置是确定的，从而OLT可确定出错误与带宽通道相关，判定带宽通道对应的ONU发送了分配请求。
步骤505，判断是否识别出ONU标识。
具体地说，本步骤与本申请实施例中的步骤102大致相同，此处不一一赘述。
步骤506，为与ONU标识对应的ONU分配相对应的带宽。
具体地说，本步骤与本申请实施例中的步骤103大致相同，此处不一一赘述。
步骤507，为一个或若干个光网络单元ONU分配相对应的带宽。
具体地说，本步骤与本申请实施例中的步骤104大致相同，此处不一一赘述。
本实施例，该带宽通道除了用于接收分配请求之外，还可以供ONU传输业务，可以提高带宽资源的利用率。另外，可以对在该带宽通道内所传输的信号进行前向纠错，来降低信号传输时所受到的干扰，并确认出是否存在分配请求的发送。
本申请的实施例涉及一种带宽分配方法，应用在光线路终端OLT上，OLT与若干个光网络单元ONU通信连接，如图6所示，具体包括以下步骤：
步骤601，通过预设的带宽通道接收ONU发送的分配请求和/或业务数据。
具体地说，本步骤与本申请实施例中的步骤101大致相同，此处不一一赘述。
步骤602，判断是否能识别出ONU标识。
具体地说，本步骤与本申请实施例中的步骤102大致相同，此处不一一赘述。
步骤603，计算ONU所需的带宽大小，并根据ONU标识获取与ONU标识对应的ONU的保证带宽范围。
具体地说，若可以识别出ONU标识，则需要根据分配请求和/或业务数据，计算ONU所需的带宽大小，并获取到与ONU标识对应的ONU的保证带宽范围。
步骤604，判断保证带宽范围是否大于或等于所需带宽大小。
具体地说，在获取到需要分配的ONU的保证带宽范围之后，需要将其与所需带宽的大小进行比较，若保证带宽范围大于或等于所需带宽大小，则执行步骤605，若保证带宽范围小于所需带宽大小，则执行步骤606。
步骤605，从保证带宽范围内选取部分保证带宽分配给与ONU标识对应的ONU。
具体地说，当保证带宽范围大于或等于所需带宽大小时，说明该ONU自身对应的保证带宽范围足够进行带宽分配，直接从该ONU自身对应的保证带宽范围内选取所需带宽大小给该ONU。
步骤606，将保证带宽范围内的所有保证带宽分配给与ONU标识对应的ONU，并从若干光网络单元ONU中的其他ONU对应的带宽范围内选取部分带宽分配给与ONU标识对应的ONU。
具体地说，当保证带宽范围小于所需带宽大小时，说明该ONU自身对应的保证带宽范围不足以进行带宽分配，需要先将该ONU自身对应的保证范围内的全部带宽分配给该ONU，并从其他ONU的空闲带宽中调度部分带宽给该ONU。
步骤607，为一个或若干个光网络单元ONU分配相对应的带宽。
具体地说，本步骤与本申请实施例中的步骤104大致相同，此处不一一赘述。
本实施例，在其他实施例地基础上，还可以在给ONU分配带宽时，是结合所需分配带宽大小和ONU的保证带宽大小决定的，在所需分配带宽较小时，从ONU的保证带宽内获取即可；而在所需分配带宽较大时，需要将其他ONU的带宽分配至该ONU，可以结合ONU的自身情况和所需的带宽大小灵活调整分配策略，提高带宽资源的利用率。
本申请的实施例还涉及一种带宽分配方法，应用在光网络单元ONU上，具体流程如图7 所示。
步骤701，检测ONU的业务流量所需的带宽，是否大于OLT为该ONU分配的带宽。若所需的带宽大于OLT为该ONU分配的带宽，则进入步骤702，若未大于OLT为该ONU分配的带宽，则回到步骤701。
在一个例子中，ONU为当前未分配有带宽的ONU，即，OLT为该ONU分配的带宽为0。若该ONU有业务数据需要发送，由于分配的带宽为0，则ONU的业务流量所需的带宽，必然大于OLT为该ONU分配的带宽，触发步骤702，若该ONU没有业务数据需要发送，此时ONU的业务流量所需的带宽，不大于OLT为该ONU分配的带宽，继续回到步骤701。也就是说，当ONU没有数据发送时，在预设带宽通道内不发送数据，也不发送分配请求；当ONU有数据发送时，如果预设带宽可以发送数据，则发送数据，并根据需要发送分配请求；若ONU有数据发送但对应的带宽通道供其他ONU发送业务数据，或者对应的带宽通道不足以发送业务数据时，通过发送分配请求指示OLT分配保证带宽。
在步骤702中，通过预设的带宽通道向OLT发送分配请求和/或业务数据，供OLT根据所述分配请求和/或业务数据为ONU分配相对应的带宽。
在一个例子中，可以通过网络管理单元、OMCI、PLOAM、BWmap等管理通道对ONU预先分配一个带宽通道，ONU和带宽通道的对应关系可以是一对一的关系，也可以是一对多的关系。当ONU检测到需要发送的业务流量所需的带宽，大于OLT为该ONU分配的带宽后，可以通过该预先分配的带宽通道向OLT发送分配请求，该分配请求中可以携带有分配带宽大小，即，ONU通过一个带宽信令向OLT通知该ONU所需要的带宽大小。在另一个例子中，ONU可以在有传输业务恢复时，通过该预设的带宽通道直接发送业务数据，即在该预设的带宽通道中存在突发流量，OLT在接收到之后需要根据突发流量计算该ONU所需的带宽大小。
在步骤703中，ONU在OLT分配的相对应的带宽中传输业务数据。
在一个例子中，在步骤703后，还可以包括步骤704，若所述ONU的业务流量所需的带宽小于所述相对应的带宽，则在所述预设的带宽通道中传输空闲帧，指示所述OLT调整所述ONU对应的带宽。若通过预设的带宽通道接收的业务数据均为空闲帧，则说明对应的ONU所分配的带宽过大，可以将对应的ONU所分配的带宽调小，以提高带宽利用率。
本实施例可以提高ONU进行带宽分配的效率，降低ONU业务传输的时延，解决了现有技术的带宽分配是在一定的调度周期后才会重新给ONU分配带宽，使得在调度周期内ONU无法进行业务传输，进而在业务传输时产生较大的时延的技术问题。
本申请的实施例还涉及一种OLT，该OLT与若干个ONU通信连接，如图8所示，包括：
接收模块801，用于通过预设的带宽通道接收ONU发送的分配请求和/或业务数据。
分配模块802，用于若能识别出ONU标识，则根据所述分配请求和/或业务数据为与所述ONU标识对应的ONU分配相对应的带宽；若不能识别出ONU标识，则根据预设的所述带宽通道为所述一个或者若干个ONU分配相对应的带宽。
不难发现，本实施方式为与上述方法应用于OLT的方法实施例相对应的装置实施例，本实施方式可与上述方法实施例互相配合实施。上述方法实施例中提到的相关技术细节和技术效果在本实施方式中依然有效，相应地，本实施方式中提到的相关技术也可应用在上述方法实施例中。
本申请的实施例还涉及一种ONU，如图9所示，包括：
检测模块901，用于检测ONU的业务流量所需的带宽是否大于光线路终端OLT为ONU分配的带宽。
发送模块902，用于在所述检测模块检测到所述ONU的业务流量所需的带宽大于OLT为所述ONU分配的带宽后，通过预设的带宽通道向所述OLT发送分配请求和/或业务数据，供所述OLT根据所述分配请求和/或业务数据为所述ONU分配相对应的带宽。
在一个例子中，ONU还包括传输模块，用于在所述OLT分配的所述相对应的带宽中传输业务数据。
不难发现，本实施方式为与上述方法应用于ONU的方法实施例相对应的装置实施例，本实施方式可与上述方法实施例互相配合实施。上述方法实施例中提到的相关技术细节和技术效果在本实施方式中依然有效，相应地，本实施方式中提到的相关技术也可应用在上述方法实施例中。
本申请的实施例涉及一种终端如图10所示，包括：
至少一个处理器1001；以及，与至少一个处理器1001通信连接的存储器1002；其中，存储器1002存储有可被至少一个处理器1001执行的指令，指令被至少一个处理器1001执行，以使至少一个处理器1001能够执行上述任一方法实施例所描述的带宽分配方法。
其中，在本申请实施例中，存储器和处理器采用总线方式连接，总线可以包括任意数量的互联的总线和桥，总线将一个或多个处理器和存储器的各种电路连接在一起。总线还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路连接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口在总线和收发机之间提供接口。收发机可以是一个元件，也可以是多个元件，比如多个接收器和发送器，提供用于在传输介质上与各种其他装置通信的单元。经处理器处理的业务数据通过天线在无线介质上进行传输，进一步，天线还接收业务数据并将业务数据传输给处理器。
处理器负责管理总线和通常的处理，还可以提供各种功能，包括定时，外围接口，电压调节、电源管理以及其他控制功能。而存储器可以被用于存储处理器在执行操作时所使用的业务数据。
本申请实施例涉及一种计算机可读存储介质，存储有计算机程序。计算机程序被处理器执行时实现上述方法实施例。
即，本领域技术人员可以理解，实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-OnlyMemory)、随机存取存储器(RAM，RandomAccessMemory)、磁碟或者光盘等各种可以存储程序代码的介质。
本领域的普通技术人员可以理解，上述各实施例是实现本申请的具体实施例，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本申请的精神和范围。

Claims (14)

  1. 一种带宽分配方法，应用在光线路终端OLT上，所述OLT与若干个光网络单元ONU通信连接，所述方法包括：
    通过预设的带宽通道接收所述ONU发送的分配请求和/或业务数据；
    若能识别出ONU标识，则根据所述分配请求和/或业务数据为与所述ONU标识对应的ONU分配相对应的带宽；
    若不能识别出所述ONU标识，则根据预设的所述带宽通道为一个或者若干个所述光网络单元ONU分配相对应的带宽。
  2. 根据权利要求1所述的带宽分配方法，其中，所述通过预设的带宽通道接收所述ONU发送的分配请求和/或业务数据之前还包括：
    从所述ONU对应的保证带宽范围内选取部分保证带宽作为所述ONU对应的所述带宽通道；
    或者，
    根据预设的分组规则将多个ONU形成分组，获取ONU分组；
    从所述ONU分组对应的保证带宽范围内选取部分保证带宽作为与所述ONU分组对应的所述带宽通道。
  3. 根据权利要求1至2中任一项所述的带宽分配方法，其中，所述通过预设的带宽通道接收所述ONU发送的分配请求和/或业务数据之前还包括：
    为所述ONU指定包括位置和大小的时隙作为对应的所述带宽通道，其中，所述带宽通道还用于供与所述OLT连接的其他ONU传输业务数据。
  4. 根据权利要求3所述的带宽分配方法，其中，所述通过预设的带宽通道接收所述ONU发送的分配请求和/或业务数据，包括：
    对所述其他ONU传输的业务数据进行校验；
    若所述校验出错，则对其他ONU发送的业务数据进行纠错，如果错误与所述带宽通道相关，则判定所述带宽通道对应的ONU发送了分配请求。
  5. 根据权利要求1至4中任一项所述的带宽分配方法，其中，所述若能识别出ONU标识，则根据所述分配请求和/或业务数据为与所述ONU标识对应的ONU分配相对应的带宽，包括：
    根据分配请求和/或业务数据，计算ONU所需的带宽大小；
    根据所述ONU标识获取所述与所述ONU标识对应的ONU的保证带宽范围；
    若所述保证带宽范围大于或等于所需带宽大小，则从所述保证带宽范围内选取部分保证带宽分配给所述与所述ONU标识对应的ONU；
    若所述保证带宽范围小于所述所需带宽大小，则将所述保证带宽范围内的所有保证带宽分配给所述与所述ONU标识对应的ONU，并从所述若干光网络单元ONU中的其他ONU对应的带宽范围内选取部分带宽分配给所述与所述ONU标识对应的ONU。
  6. 根据权利要求1至5中任一项所述的带宽分配方法，其中，所述若不能识别出所述ONU标识，则根据预设的所述带宽通道为一个或者若干个所述光网络单元ONU分配相对应的带宽，包括：
    为所述预设的带宽通道相关的ONU分配保证带宽大小的带宽。
  7. 根据权利要求1至6中任一项所述的带宽分配方法，其中，所述根据预设的所述带宽通道为所述一个或者若干个所述光网络单元ONU分配相对应的带宽之后，还包括：
    接收所述若干个光网络单元ONU返回的带宽状态信息和业务流量信息；
    根据所述带宽状态信息和所述业务流量信息调整所述若干个光网络单元ONU对应的带宽范围。
  8. 根据权利要求1至7中任一项所述的带宽分配方法，其中，所述通过预设的带宽通道接收所述ONU发送的分配请求和/或业务数据之前还包括：
    将所述带宽通道对应的带宽范围发送至所述ONU；
    若未接收到所述ONU通过所述带宽通道返回的通道响应消息，则继续将所述带宽通道对应的带宽范围发送至所述ONU。
  9. 一种带宽分配方法，应用在光网络单元ONU上，所述方法包括：
    若所述ONU的业务流量所需的带宽大于光线路终端OLT为所述ONU分配的带宽，则通过预设的带宽通道向所述OLT发送分配请求和/或业务数据。
  10. 根据权利要求9所述的带宽分配方法，其中，在所述通过预设的带宽通道向所述OLT发送分配请求和/或业务数据后，还包括：
    若所述ONU的业务流量所需的带宽小于所述相对应的带宽，则在所述预设的带宽通道中传输空闲帧。
  11. 一种OLT，所述OLT与若干个光网络单元ONU通信连接，包括：
    接收模块，用于通过预设的带宽通道接收所述ONU发送的分配请求和/或业务数据；
    分配模块，用于若能识别出ONU标识，则根据所述分配请求和/或业务数据为与所述ONU标识对应的ONU分配相对应的带宽；若不能识别出所述ONU标识，则根据预设的所述带宽通道为一个或者若干个所述光网络单元ONU分配相对应的带宽。
  12. 一种ONU，包括：
    检测模块，用于检测所述ONU的业务流量所需的带宽是否大于光线路终端OLT为所述ONU分配的带宽；
    发送模块，用于在所述检测模块检测到所述ONU的业务流量所需的带宽大于OLT为所述ONU分配的带宽后，通过预设的带宽通道向所述OLT发送分配请求和/或业务数据。
  13. 一种终端，包括：至少一个处理器；以及，
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行如权利要求1至8中任一项所述的带宽分配方法，或者，执行如权利要求9或10所述的带宽分配方法。
  14. 一种计算机可读存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至8中任一项所述的带宽分配方法，或实现权利要求9或10所述的带宽分配方法。
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