CN102710999A - Method for transmitting and processing OMCI (ont management and control interface) messages in GPON (gigabit passive optical network) - Google Patents

Abstract

The invention discloses a method for transmitting and processing OMCI (ont management and control interface) messages in a GPON (gigabit passive optical network). The GPON comprises an optical line terminal (OLT) and at least one optical network unit (ONU) connected with the OLT through optical fibers. The method comprises the following steps: an initial OMCI channel communicated with the ONU is established by the OLT firstly, then a plurality of expansion OMCI channels are established according to the types of OMCI messages, and the OMCI messages are simultaneously sent to the ONU by the OLT by utilizing the plurality of OMCI channels, so that under the condition that more OMCI messages are needed to be sent to the ONU, the efficiency of configuring and managing the ONU by the OLT is effectively improved, and the integral working efficiency of the system is improved. Moreover, only one register is needed to be arranged in the ONU, so that the method has the advantages of simple hardware implementation mode, low cost and wider application range. The invention also discloses the GPON using the method.

Description

The method of transmission and processing OMCI message among a kind of GPON

Technical field

The present invention relates to EPON (Passive Optical Network; Be called for short PON); Relate in particular to a kind of GPON (Gigabit Passive Optical Network; Gigabit Passive Optical Network) method of transmission and processing OMCI (ONT Management and Control Interface, optical network unit management and control interface) message in.

Background technology

According to expectation to broadband application future development; Optical fiber is considered to best up to now transmission medium; Gigabit passive optical network (GPON) system is owing to the defeated distance of its teletransmission that has, high bandwidth, better dichroism; Perfect characteristics such as standard receive an acclaim in present optical-fiber network is used, and have bright development prospect.

In the GPON system, optical line terminal (OLT) is configured management through ONT management and control interface (OMCI) agreement to ONT Optical Network Terminal (ONT), and the carrier of management is an OMCI message.Regulation according to agreement; The process of OLT and ONU transmission OMCI message is; OLT issues OMCI message to ONU; After ONU receives OMCI message, make corresponding reaction and send corresponding OMCI to OLT and receive the response, have only OLT to receive receiveing the response of ONU or wait timeout, OLT just can send next bar OMCI message.Undeniable, a lot of business can be carried preferably in present GPON system, for the user provides higher bandwidth access level.But the rapid growth and the user that use along with diverse network improve constantly what professional skill required; OLT can get more and more to the OMCI message that ONT is configured management, and the OMCI transmission of messages pattern that traditional form is single can influence the OMCI allocative efficiency greatly.

Summary of the invention

Technical problem to be solved by this invention is to overcome the deficiency of prior art; The method of transmitting and handle OMCI message among a kind of GPON is provided; Utilize many channel transfer OMCI message, thereby effectively improve the efficient of OLT, and and then improve the whole work efficiency of system the ONU configuration management.

The present invention is concrete to adopt following technical scheme to solve the problems of the technologies described above.

The method of transmission and processing OMCI message among a kind of GPON, said GPON comprises optical line terminal, and passes through at least one optical network unit that optical fiber is connected with optical line terminal, this method may further comprise the steps:

Step 1, optical line terminal are set up an initial OMCI passage respectively for each optical network unit;

Step 2, to each optical network unit, optical line terminal judges that whether the species number N of the OMCI message will mail to this optical network unit is greater than 1; In this way; Then optical line terminal is set up the N-1 bar and is expanded the OMCI passage between self and this NE; Utilize described initial OMCI passage then and expand the OMCI passage simultaneously to this optical network unit transmission OMCI message, the OMCI message of same kind is sent via same OMCI passage successively; As not, then utilize initial OMCI passage to send OMCI message successively to this optical network unit;

Step 3, optical network unit deposit the OMCI message that receives in the one preset register in, from this register, extract OMCI message successively according to the time sequencing that receives then and carry out.

In order rationally to utilize system resources consumption further, this method also comprises:

Step 4, optical line terminal are monitored the OMCI message that needs send to each optical network unit in real time, if the OMCI message of new kind is then transmitted such message for its newly-built expansion OMCI passage;

Step 5, optical line terminal are monitored the operating position that each bar expands the OMCI passage in real time, as have the expansion OMCI passage that is not used in one section Preset Time, and then optical line terminal discharges the expansion OMCI passage that is not used.

According to thinking of the present invention, can also obtain a kind of GPON that uses above-mentioned arbitrary method, said optical network unit comprises a register that is used to store OMCI message.

Compare prior art, the present invention has following beneficial effect:

One, optical line terminal is set up the OMCI passage of the connection optical network unit of respective numbers based on the species number of OMCI message; And utilize the OMCI passage simultaneously to the parallel OMCI of transmission of optical network unit message; Thereby when having more OMCI message to send to optical network unit through the OMCI passage; Come parallel convey OMCI message through many passages; Effectively improved the efficient of optical line terminal to the optical network unit configuration management, and and then improved the whole work efficiency of system;

Two, in the inventive method, OLT dynamically adjusts expanding the OMCI passage according to operating position, discharges the expansion OMCI passage that is not used in a period of time, thereby has further reduced system resources consumption;

Three, the present invention only need increase a register that is used to store many OMCI message that ONU receives in ONU, and hardware implementation mode is simple, and is with low cost, and range of application is comparatively extensive.

Description of drawings

Fig. 1 is the schematic flow sheet of the inventive method.

Embodiment

Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated:

Thinking of the present invention is the species number according to OMCI message to be sent, between OLT and ONU, sets up the OMCI message channel of equal number, realizes that the multi-channel parallel of OMCI message sends, and the OMCI message of same kind is sent via same OMCI passage successively; A plurality of OMCI message that ONU will receive deposit in the register, carry out successively according to the reception order then.OLT also monitors the variation of OMCI message kind and the operating state of each passage in real time in the process of transmission OMCI message; If will correspondingly setting up new expansion OMCI passage greater than existing OMCI number of active lanes, OMCI message species number transmits OMCI message; If have passage in the regular hour, not to be used then discharge, but the default channel that produces system initialization the time can keep.

The flow process of the inventive method is as shown in Figure 1, may further comprise the steps:

(1) ONU starts, and carries out initialization, and registers to OLT; After registration was accomplished, OLT set up an initial OMCI passage that is communicated with said ONU;

(2) OLT obtains the OMCI message that need mail to this ONU;

(3) OLT analyzes the kind of said OMCI message, and the kind of OMCI message specifically is meant: the OMCI message with relevance is one type of OMCI message;

(4) whether OLT judges described OMCI message more than a kind, if, then get into step (6), if not, then get into step (5);

(5) OLT utilizes initial OMCI passage to send OMCI message to ONU;

(6) OLT sets up the expansion OMCI passage that several are communicated with said ONU according to the species number of OMCI message, and initial OMCI passage is identical with the species number of OMCI message with the sum that expands the OMCI passage;

(7) OLT utilizes initial OMCI passage and expands the OMCI passage simultaneously to said ONU transmission OMCI message, and the OMCI message of same kind is sent via same OMCI passage successively;

(8) OLT monitors the kind of OMCI message in real time, as the new OMCI message kind that is not assigned with passage occurs, and then OLT sets up new expansion OMCI passage for it;

(9) OLT monitors the operating position that expands the OMCI passage in real time, and judges in the existing expansion OMCI passage whether have the passage that is not used in a period of time, if then discharge the expansion OMCI passage that is not used;

(10) optical network unit deposits the OMCI message that receives in the one preset register in, from this register, extracts OMCI message successively according to the time sequencing that receives then and carries out.

The present invention utilizes many OMCI passages to send OMCI information to ONU simultaneously, thereby there being more OMCI message need send under the situation of ONU, has effectively improved the efficient of OLT to the ONU configuration management, and and then improved the whole work efficiency of system; And the realization of the inventive method only needs a register is set in ONU, and implementation is simple, realizes with low costly, and range of application is comparatively extensive.

Claims (3)

1. transmission and handle the method for OMCI message among the GPON, said GPON comprises optical line terminal, and through at least one optical network unit that optical fiber is connected with optical line terminal, it is characterized in that, may further comprise the steps:

Step 1, optical line terminal are set up an initial OMCI passage respectively for each optical network unit;

Step 2, to each optical network unit, optical line terminal judges that whether the species number N of the OMCI message will mail to this optical network unit is greater than 1; In this way; Then optical line terminal is set up the N-1 bar and is expanded the OMCI passage between self and this NE; Utilize described initial OMCI passage then and expand the OMCI passage simultaneously to this optical network unit transmission OMCI message, the OMCI message of same kind is sent via same OMCI passage successively; As not, then utilize initial OMCI passage to send OMCI message successively to this optical network unit;

Step 3, optical network unit deposit the OMCI message that receives in the one preset register in, from this register, extract OMCI message successively according to the time sequencing that receives then and carry out.

2. transmission and handle the method for OMCI message among the GPON according to claim 1 is characterized in that this method also comprises:

Step 4, optical line terminal are monitored the OMCI message that needs send to each optical network unit in real time, if the OMCI message of new kind is then transmitted such message for its newly-built expansion OMCI passage;

Step 5, optical line terminal are monitored the operating position that each bar expands the OMCI passage in real time, as have the expansion OMCI passage that is not used in one section Preset Time, and then optical line terminal discharges the expansion OMCI passage that is not used.

3. the GPON of the method for OMCI message is transmitted and handles in a use according to claim 1 or claim 2, it is characterized in that said optical network unit comprises a register that is used to store OMCI message.

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