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A queue report method, a device and a passive optical network

A reporting and queuing technology, applied in the field of passive optical network and queuing reporting, can solve the problems affecting EPON bandwidth utilization, time bandwidth waste, etc., and achieve the effect of improving upstream bandwidth utilization, improving utilization, and simple logical structure

Active Publication Date: 2009-09-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Since the Grant allocated by the OLT is a fixed value, when sending some packets (such as figure 1 In Frame4), the bandwidth length of the message will exceed the time bandwidth of starting to turn off the laser. In this case, in order to turn off the laser on time, the logical link channel will not send these messages. In this way, the figure 1 The time bandwidth between the message Frame3 in the message and the time when the laser is turned off is wasted, which affects the EPON upstream bandwidth utilization

Method used

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  • A queue report method, a device and a passive optical network
  • A queue report method, a device and a passive optical network
  • A queue report method, a device and a passive optical network

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Embodiment 1, queue reporting method.

[0044] In order to make full use of the EPON upstream bandwidth, when the logical link channel sends a data message to the OLT, it can first send a queue message (or a REPORT message) to the OLT, and the REPORT message contains the data message to be sent According to the information in the REPORT message, the OLT allocates an appropriate bandwidth for the logical link channel, thereby improving the utilization rate of the EPON upstream bandwidth.

[0045] In order to enable the information in the REPORT message to reflect in real time the bandwidth required to send the data message currently, the embodiment of the present invention sets multiple thresholds for the entity queue, and each threshold corresponds to a virtual queue. By entering and exiting the virtual queue Team operation to generate a REPORT message.

[0046] In this embodiment, the entity queue is the real carrier of the data message, and the entry of the entity qu...

Embodiment 2

[0081] Embodiment 2, the enqueue and dequeue process of the virtual queue in the queue report method. The process of entering and exiting the team is attached Figure 4 shown.

[0082] Figure 4 , S400, the process of enqueueing and dequeueing the virtual queue in the queue reporting method of this embodiment starts to execute, and proceeds to S410.

[0083] S410. Determine whether there is a data message to be sent to the optical fiber, if there is a data message to be sent to the optical fiber, go to S430, otherwise, go to S420.

[0084] S420. Determine whether there is a data message in the entity queue, if there is a data message in the queue, go to S440, otherwise, go to S470.

[0085] S430. Execute the dequeue operation of the virtual queue, and then go to S440.

[0086] In EPON, when sending a data message to an optical fiber, the data message must be completely sent to the optical fiber. Based on this feature in EPON, this embodiment can execute the data message wh...

Embodiment 3

[0091] Embodiment 3, queue reporting device

[0092] The embodiment of the present invention also provides a queue reporting device 500, the device can be located in the ONU / ONT, the specific implementation form can be a single board, the device has an entity queue, and the entity queue corresponds to at least one threshold value, a The threshold corresponds to a virtual queue, the threshold represents the maximum depth of the virtual queue, and the device also includes:

[0093] The first judging unit 501 is used to judge whether there is a data packet to be sent to the optical fiber; wherein, the data packet exists in the entity queue, including the data packet existing in the queue form and another part of the data packet in the FIFO.

[0094] The virtual queue dequeuing management unit 502, when the message sending judging unit judges that the data message is sent to the optical fiber, performs a dequeue operation on the virtual queue according to the threshold;

[0095] ...

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Abstract

The invention discloses a queue report method, a device and a passive optical network; wherein the queue report method comprises: at least a threshold value is set corresponding to an entity queue; wherein each threshold value is corresponding to a virtual queue, and the threshold value represents the maximum depth of the virtual queue. The method comprises the following steps: when the data message is judged and sent to an optical fiber, the virtual queue is dequeued based on the threshold value; when data message is enqueued to the entity queue or the dequeue operation of the virtual queue is executed, and the enqueue operation is allowed to execute to the virtual queue, the virtual queue is enqueued based on the threshold value; a queue report is generated directing at the virtual queue and the queue report is reported. The technical proposal improves the accuracy of the queue report; therefore, the local side can distributes appropriate bandwidth based on the reported queue report, thereby avoiding uplink bandwidth waste and ensuring simple logic realization.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a queue reporting method, a queue reporting device and a passive optical network. Background technique [0002] Ethernet Passive Optical Network (EPON) is an optical fiber access network that closely combines Ethernet technology and passive optical network. [0003] EPON consists of Optical Line Terminal (Optical Line Terminal, OLT), Optical Distribution Network (Optical Distribution Network, ODN) and Optical Network Unit / Optical Network Terminal (Optical Network Unit / Optical Network Terminal, ONU / ONT). [0004] The OLT is located at the central office and is responsible for managing, monitoring and maintaining the entire EPON. OLT is connected with one or more ONU / ONT through ODN. The ONU / ONT is located on the user side, that is, the remote end, and is responsible for the access of users and services. [0005] One or more logical link channels can be designed in the log...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04Q11/00H04L47/6275
Inventor 李中华聂世玮宋奇刚谭亚中董恩升黄久松游泳
Owner HUAWEI TECH CO LTD
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