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A method and system for uplink framing of ONU end in xgspon

A framing and row grouping technology, which is applied in the field of ONU upstream framing in XGSPON, can solve the problems of increased ONU power consumption, unfavorable promotion and popularization of XGSPON equipment, expensive ONU equipment, etc., and achieve the effect of reducing scale

Active Publication Date: 2021-04-27
FENGHUO COMM SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] ONU is based on TCONT to complete the upstream XGEM framing. The general practice is one TCONT and one set of XGEM framing circuits. If the ONU supports 32 TCONTs, then 32 sets of XGEM framing circuits are required. The circuit scale will be relatively large. Due to the circuit scale The large size leads to an increase in the power consumption of the ONU, which will lead to the problems of expensive ONU equipment and high power consumption, which is not conducive to the promotion and popularization of XGSPON equipment

Method used

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  • A method and system for uplink framing of ONU end in xgspon
  • A method and system for uplink framing of ONU end in xgspon
  • A method and system for uplink framing of ONU end in xgspon

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Embodiment 1

[0073] see figure 1 As shown, the embodiment of the present invention provides a method for ONU end upstream framing in XGSPON, comprising the following steps:

[0074] S1, allocate TCONT data cache according to the number of TCONT, respectively store the uplink data frame data corresponding to each TCONT; allocate TCONT description cache according to the number of TCONT, store the frame description of the uplink data frame corresponding to each TCONT;

[0075] S2, when receiving the uplink data frame and the TCONT number, write the uplink data frame data into the TCONT data cache corresponding to the TCONT number, and write the uplink data frame frame length and the gemport information of the data frame into the TCONT description cache corresponding to the TCONT number;

[0076] S3, when receiving the TCONT upstream bandwidth allocated to the ONU by the OLT and the involved TCONT number, obtain the XGEM framing intermediate information corresponding to the TCONT number, read ...

Embodiment 2

[0091] see figure 2 As shown, on the basis of Embodiment 1, step S3 specifically includes the following steps:

[0092] S301. When receiving the TCONT upstream bandwidth allocated to the ONU by the OLT and the involved TCONT number, read the XGEM framing intermediate information of the TCONT, and jump to S302;

[0093] S302, judging whether the remaining length of the data frame of the XGEM framing intermediate information is 0, if not, then go to S303; if so, go to S307;

[0094] S303. Determine the payload length of the XGEM frame according to the smaller value of the remaining length of the data frame and the remaining bandwidth of TCONT, and turn to S304;

[0095] S304, judging whether the remaining length of the read data of the XGEM framing intermediate information is 0, if not, then go to S305; if so, go to S310;

[0096] S305, judging whether the remaining length of the read data of the XGEM framing intermediate information is greater than or equal to the payload le...

Embodiment 3

[0108] On the basis of Embodiment 1, the working principle of a method for upstream framing at the ONU end in XGSPON is as follows:

[0109] When the TCONT XGEM framing circuit receives the TCONT upstream bandwidth allocation issued by the OLT, the trigger process starts, assigning the TCONT upstream bandwidth allocation value to the TCONT upstream remaining bandwidth, and reading the XGEM framing intermediate information of the TCONT at the same time.

[0110] Judging whether the remaining length of the data frame of the TCONT XGEM framing intermediate information is equal to 0, if it is equal to 0, check whether there is data in the TCONT data frame description buffer, if there is no data, send XGEM idle frame framing. If there is data in the TCONT data frame description cache, read a data frame description, and get the payload length of the XGEM frame according to the smaller value of the data frame length in the data frame description and the length of the TCONT upstream ba...

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Abstract

The invention discloses a method and system for uplink framing at the ONU end in XGSPON, and relates to the technical field of computer communication. The invention allocates TCONT data buffers and TCONT description buffers according to the number of TCONTs; when receiving uplink data frames and TCONT numbers, the Write the data of the upstream data frame into the TCONT data cache corresponding to the TCONT number, write the frame length of the upstream data frame and the gemport information of the data frame into the TCONT description cache corresponding to the TCONT number; receive the TCONT upstream bandwidth allocated to the ONU by the OLT and the involved TCONT number, obtain the XGEM framing intermediate information corresponding to the TCONT number, read the data frame description from the TCONT description buffer, read the data frame content from the TCONT data buffer corresponding to the TCONT number, and perform XGEM framing to realize multiple TCONT sharing A set of XGEM framing circuit can effectively reduce the scale of ONU framing circuit.

Description

technical field [0001] The invention relates to the technical field of computer communication, in particular to a method and system for ONU uplink framing in XGSPON. Background technique [0002] 10-Gigabit-Capable Symmetric Passive Optical Network (XGSPON, 10-Gigabit-Capable Symmetric Passive Optical Network), as an access network technology, has good forward compatibility and backward continuity. -Gigabit-Capable Passive Optical Network, XGPON corresponds to an asymmetric system with a downlink rate of 10Gbps and an uplink rate of 2.5Gbps) technology supports higher uplink bandwidth, can support uplink bandwidth of 10Gbps and 2.5Gbps, can Complete the smooth evolution from XGPON1 technology to XGSPON technology, XGPON1 and XGSPON equipment can coexist harmoniously, providing users with more choices. The XGSPON access system consists of central office optical line terminal equipment (OLT) and remote optical network unit (ONU) equipment. [0003] The XGSPON protocol G.9807...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00H04L12/951H04L12/861H04L1/00H04L47/43
CPCH04L1/0008H04L49/90H04L49/9057H04Q11/0067
Inventor 刘登强
Owner FENGHUO COMM SCI & TECH CO LTD
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