Method and device for transmitting operation management maintenance message in physical layer

A management maintenance and message transmission technology, applied in the field of communication, can solve problems such as wasting bandwidth, increasing message interaction time, reducing message interaction reliability, etc., to achieve the goal of reducing bandwidth occupation, increasing message interaction time, and reducing message interaction time Effect

Inactive Publication Date: 2015-01-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Aiming at the problems in the prior art of wasting bandwidth, increasing message interaction time, and reducing the reliability of message interaction caused by the inflexible PLOAM message format, the present invention aims to provide a PLOAM message transmission method and device to solve the above problems at least one

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  • Method and device for transmitting operation management maintenance message in physical layer
  • Method and device for transmitting operation management maintenance message in physical layer
  • Method and device for transmitting operation management maintenance message in physical layer

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Experimental program
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Embodiment 1

[0034] In this embodiment, for the problems caused by the transmission of the above-mentioned first and second types of PLOAM messages in the prior art, a transmission method of PLOAM messages is proposed: a plurality of messages whose sum of message content length is less than a predetermined length is passed through The predetermined method is spliced ​​into a message group, and the message group is sent in a GPON transmission and convergence layer frame.

[0035] The predetermined length here is the length of the message content DATA in the PLOAM message format set in the prior art, which is 10 bytes.

[0036] It should be noted that the present invention is not only applicable to the GPON system, but also applicable to the next generation PON developed on the basis of GPON. In addition, the PLOAM message format in the GPON system is 13 bytes, wherein the message content length is 10 bytes, the present invention has no limit to the PLOAM message format length and the length...

Embodiment 2

[0064] In this embodiment, for the problems caused by the transmission of the above-mentioned third type of PLOAM message, a PLOAM message transmission method is proposed: a message whose content length is greater than a predetermined length is divided into multiple message segments, and the multiple message segments are divided into The segments are spliced ​​into a message group in a predetermined way, and the message group is sent in a GPON transmission convergence layer frame.

[0065] That is to say, for multiple PLOAM messages generated due to long message content (more than 10 bytes), the multiple PLOAM messages generated are spliced ​​into a PLOAM message group and sent in a GTC frame.

[0066] For example, in the existing GPON system, the length of the message content of the new key sent by the ONU to the OLT is 16 bytes. In the prior art, the message needs to be divided into two PLOAM messages, and each PLOAM message is sent in one GTC , which needs to be sent twice....

Embodiment 3

[0073] In this embodiment, an extended PLOAM message is provided, which is applied in the second embodiment above. A plurality of related PLOAM messages of a predetermined format may be spliced ​​into the extended PLOAM message, wherein the predetermined format may be the format of a PLOAM message in the prior art, that is, including ONU ID, Message ID, Data and CRC.

[0074] As described in Embodiment 2, a PLOAM message with a longer message content (more than 10 bytes) needs to be divided into multiple PLOAM messages in the prior art, and since only one PLOAM message can be sent in one frame, therefore In the prior art, the PLOAM message with long message content needs to be sent multiple times to send the PLOAM message to the opposite end.

[0075] In this embodiment, since the length of the PLOAM message is extended, the above-mentioned multiple PLOAM messages can be spliced ​​into one extended PLOAM message, so that the extended PLOAM message only needs to be sent in one ...

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Abstract

The present invention provides a method and an apparatus for transmitting a physical layer operations administration and maintenance message, wherein the method comprises: splicing multiple messages with a sum of the length of message contents less than a predetermined length into a message group by a predetermined manner, and transmitting the message group in a gigabit passive optical network transmission convergence frame. By the invention, the problems of wasting the bandwidth, prolonging the time of message interaction and reducing the reliability of the message interaction in the prior art are solved, thereby effectively reducing the occupation of the bandwidth and the time of the message interaction, and improving the reliability of the message interaction.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for transmitting a physical layer operation, management and maintenance (PLOAM) message of a passive optical network. Background technique [0002] Gigabit Passive Optical Network (GPON for short) system usually consists of Optical Line Terminal (OLT for short), Optical Network Unit (ONU for short) and Optical Distribution Network (Optical Distribution Network for short). Network, referred to as ODN). The ODN is usually a point-to-multipoint structure, and an OLT is connected to multiple ONUs through the ODN. [0003] The GPON system can perform management operations between the OLT and the ONU at the transmission and convergence layer through Physical Layer Operations Administration and Maintenance (PLOAM for short) messages. figure 1 A schematic diagram showing the format of a PLOAM message, such as figure 1 As shown, the fixed length of the message ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L29/06
CPCH04L12/24H04Q2011/0079H04Q11/0067H04L41/00H04J3/1694H04Q2011/0088H04L41/34
Inventor 张伟良
Owner ZTE CORP
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