WO2011035602A1

WO2011035602A1 - Method and system for implementing registration flow of gigabit-capable passive optical network

Info

Publication number: WO2011035602A1
Application number: PCT/CN2010/073162
Authority: WO
Inventors: 陈晓; 王新余; 王懿
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-09-22
Filing date: 2010-05-24
Publication date: 2011-03-31
Also published as: CN101674501B; CN101674501A

Abstract

A method for implementing the registration flow of a Gigabit-Capable Passive Optical Network is provided in the present invention, wherein the frame format of a registration identity request message and the frame format of a registration identity response message are defined, and the method includes: an optical line terminal (OLT) transmits a serial number (SN) request message; after receiving the serial number request message, a new-logged-on optical network (ONU) transmits to the OLT a serial number response message which carries the SN of the new-logged-on ONU; after receiving the serial number response message, the OLT analysis the SN in the serial number response message and determines whether the correspondence between the SN and an ONU identity has been preconfigured locally, if so, the registration is processed in the serial number way; otherwise, the registration is processed by adopting the defined frame formats of the registration identity request message and the registration identity response message in the registration identity way. In addition, a system for implementing the registration flow of a Gigabit-Capable Passive Optical Network is provided in the present invention.

Description

Method and system for implementing Gigabit passive optical network registration process

The present invention relates to a Gigabit-capable Passive Optical Network (GPON) system, and more particularly to a method and system for implementing a GPON registration process. Background technique

Passive Optical Network (PON) technology is a point-to-multipoint fiber access technology, and the PON consists of the optical line terminal (OLT) on the central side, the optical network unit (ONU) on the user side, and optical distribution. Network (ODN) composition. The ODN is a point-to-multipoint structure, that is, one OLT connects multiple ONUs through an ODN, as shown in Figure 1.

PON can be subdivided into: ATM Passive Optical Network (APON), Ethernet Passive Optical Network (EPON) and GP0N. Among them, APON uses Asynchronous Transfer Mode (ATM) as the data link layer; EPON uses Ethernet as the data link layer, and expands Ethernet to provide point-to-multipoint communication capability; GPON uses ATM/GEM (GPON encapsulation method) As a link layer, it can support multiple services.

As users' demands for bandwidth and quality of service continue to increase, optical access becomes imminent. More and more operators are beginning to deploy optical access networks. However, operators have deployed digital subscriber line (DSL)-based access networks in the early stage. The existing networks will not be replaced immediately due to cost factors. Will continue to retain.

The equipment used in the existing network basically follows the broadband model proposed by TR_101. From the perspectives of cost, evolution, network interoperability and unified management and maintenance, operators hope that even in the case of multiple access networks coexisting, there can be a unified broadband model to manage the network to improve network interworking and reduce Equipment complexity and cost reduction.

Practice has found that the broadband model proposed by the TR-101 standard has good compatibility and scalability. Sex, also applies to other broadband access technologies, such as fiber to the home (FTTH) / xPON.

Therefore, operators planning to deploy GPON are very eager to follow the broadband model in the deployment of GPON, and have conducted a series of explorations and discussions with equipment vendors. The conclusion is that the broadband model is generally suitable for GPON access technology, but There are also areas where additional definitions and standardization are required. Therefore, the Broadband Forum proposed the TR_156 standard based on the TR-101 standard in December 2008. It complements and extends the TR_101 standard and is specifically targeted at GPON access technologies.

At present, in addition to the TR-156 standard, the G.984 standard proposed by the International Telecommunication Union Telecommunication Standardization Group (ITU-T) is another technical standard to be followed by GPON equipment, and the G.984 standard and the TR-101 standard for GPON. The registration process has its own rules.

As shown in Figure 2, the message interaction process of the GPON registration process specified by the G.984 standard includes the following steps:

Step 201: The OLT periodically sends a serial number request (Serial Number Request) message.

The purpose of this step is to discover the ONU by getting a response to the Serial Number Request message. Here, the response to the Serial Number Request message refers to the Serial Number Response message sent by the ONU described below.

Step 202: The ONU is just powered on in the O1 state; immediately after switching to the OLT, it switches to the 02 state; thereafter, the ONU receives the first physical layer operation management and maintenance (ploam) message: that is, the uplink overhead (up_stream) message sent by the OLT After that, according to the up_stream message, the operating parameters such as the transmitted optical power are adjusted, and the self is switched to the 03 state. In the 03 state, after receiving the Serial Number Request message from the OLT, the ONU sends a Serial Number Response message as a response. The Serial Number Response message carries the SN of the ONU.

Step 203: After receiving the Serial Number Response message, the OLT determines that a new ONU is online through the SN carried in the Serial Number Response message, so according to the OLT The pre-configured relationship between the SN and the ONU ID is used to assign an ONU ID to the ONU that is newly uploaded, and the ONU ID is carried to the ONU by sending an ONU ID (Assignment ONU ID) message.

After receiving the Assign ONU ID message sent to itself, the newly-online ONU configures the ONU ID for itself and switches itself to the 04 state.

Step 204: The OLT sends a Ranging Request message.

The purpose of this step is to measure the equalization delay of the ONU of the new uplink and send the measured equalization delay to the ONU of the new uplink.

Step 205: The newly-online ONU configures its own equalization delay, adjusts the sending start point of the uplink frame, and sends a Ranging Response message to the OLT, where the Ranging Response message carries the SN of the newly-online ONU. .

At this point, the ONU registration is successful.

After the step 205, the GPON registration process further includes the following steps: Steps 206-207, the OLT sends a password request (Password Request) message to the newly-online ONU; the newly-online ONU sends a password response to the OLT ( Password Response ) The message, the Password Response message carries the password of the ONU.

The Password Request message is filled with an ONU ID to indicate that the password is obtained from the specified ONU. Similarly, the Password Response message is also filled with the ONU ID.

This process is used by the OLT to request a password from the ONU to verify the legitimacy of the ONU.

The TR-156 standard stipulates that the OLT can establish a management connection with the ONU through the SN method or the registration ID (registration ID), but these two methods are generally mixed in the actual process.

Among them, the GPON registration process of the SN mode specified by the TR-156 standard is consistent with the G.984 standard.

As shown in FIG. 3, the message interaction process of the GPON registration process specified by the TR_156 standard includes the following steps: Step 301: The OLT periodically sends a Serial Number Request message periodically.

Step 302: The ONU is just powered on in the Ol state; immediately after the connection with the OLT, it switches to the 02 state; thereafter, the ONU receives the first ploam message: after the up_stream message, adjusts its working parameters according to the up_stream message. For example, if the optical power is transmitted, the user switches to the 03 state. In the 03 state, after receiving the Serial Number Request message from the OLT, the ONU sends a Serial Number Response message, and the Serial Number Response message carries the SN of the ONU. .

After receiving the Serial Number Response message, the OLT determines that a new ONU is online through the SN carried in the Serial Number Response message. If the corresponding relationship between the SN and the ONU ID is pre-configured on the OLT, the ONU continues to register in the SN mode. The subsequent steps are the same as the steps 203 to 205, and therefore will not be described here; otherwise, the registration is continued according to the Registration ID mode. And includes the following steps:

Step 303: The OLT continues to send a message to obtain the registration ID of the newly uploaded ONU. This message uses the frame format of the Password Request message.

Step 304: After receiving the Password Request message, the ONU returns a message to the OLT, where the message carries the registration ID of the ONU. This message uses the frame format of the Password Response message.

Step 305: After receiving the password response message, the OLT parses the registration ID. If the correspondence between the registration ID and the ONU ID is pre-configured, the POS sends an Assign ONU ID message, where the Assign ONU ID message carries The ONU ID assigned by the OLT to the newly-online ONU; otherwise, the registration fails and the process ends.

After the newly-online ONU receives the Assign ONU ID message sent to itself, it configures the ONU ID for itself and switches itself to the 04 state.

Step 306: The OLT sends a Ranging Request message to measure the equalization delay of the newly-online ONU, and sends the measured equalization delay to the newly-online ONU. Step 307: The newly-online ONU configures its own equalization delay, adjusts the sending start point of the uplink frame, and sends a Ranging Response message to the OLT, where the Ranging Response message carries the SN of the ONU.

At this point, the ONU registration is successful.

According to the comparison of the above two GPON registration processes: The G.984 standard stipulates that the Password Request message is sent by the OLT after the ranging is completed. In addition, before the ranging, the ONU has been assigned an ONU ID by the OLT, and Switch to the O4 state, that is, the Password Request message should be sent when the ONU is in the 04 state. The TR_156 standard stipulates that the OLT obtains the Registration ID by borrowing the Password Request message specified by the G.984 standard, and the ONU fills the ONU's Registration ID in the Password field of the Password Response message for reporting. The specific details are not specified. According to the TR-156 standard, when the OLT sends a Password Request message to obtain the Registration ID, the ONU is actually only in the 03 state, which conflicts with the G.984 standard that the ONU receives the Password Request message in the 04 state. In addition, the Password Request message needs to be filled with the ONU ID to indicate that the Registration ID is obtained from the specified ONU. However, the ONU is in the 03 state and the ONU ID has not been assigned yet, so the ONU ID is not filled, so the TR-156 standard provides The GPON registration process of the Registration ID method is actually implemented.

The above problems make it difficult for GPON equipment to support both the G.984 standard and the TR-156 standard. Summary of the invention

In view of this, the main object of the present invention is to provide a method and system for implementing a GPON registration process, which is compatible with the registration of the SN and the Registration ID mode, so that the GPON device can simultaneously support the G.984 standard and the TR_156 standard.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A method for implementing a GPON registration process, defining a frame format of a registration identifier request message and Register the frame format of the identity response message, the method includes:

The optical line terminal sends a serial number request message;

After receiving the sequence number request message, the newly-online optical network unit sends a sequence number response message to the optical line terminal, where the sequence number response message carries the sequence number of the newly-online optical network unit;

After receiving the serial number response message, the optical line terminal parses out the serial number therein, and determines whether the corresponding relationship between the serial number and the optical network unit identifier is pre-configured locally, and if yes, the serial number is used to register; otherwise, The frame format of the defined registration identifier request message and the frame format of the registration identifier response message are registered according to the registration identifier.

The first byte of the frame format of the registration identifier request message is used to fill the temporary optical network unit identifier allocated by the optical line terminal for the optical network unit;

In the frame format of the registration identifier response message, the 4th byte to the 11th byte are used to fill the registration identifier of the optical network unit.

The method further includes: before the new uplink optical network unit sends the sequence number response message, the method further includes:

The newly-online optical network unit is powered on and is in the 01 state; after being connected to the optical line terminal, it switches itself to the 02 state; after receiving the uplink overhead message sent by the optical line terminal, adjusts its working parameters, and Switch itself to the 03 state.

The process of registering by the registration identifier includes:

The optical line terminal sends a registration identifier request message, where the registration identifier request message carries the temporary optical network unit identifier configured by the optical line terminal for the newly uplink optical network unit, and the sequence number of the newly uplink optical network unit;

After receiving the registration identifier request message sent to itself, the newly-received optical network unit sends a registration identifier response message to the optical line terminal, where the registration identifier response message carries the registration identifier of the newly-online optical network unit and the Temporary optical network unit identification; After receiving the registration identifier response message, the optical line terminal parses out the registration identifier, and sends an optical network unit identifier message, the assigned optical network unit identifier, according to the pre-configured correspondence between the registration identifier and the optical network unit identifier. The message carries the legal optical network unit identifier allocated by the optical line terminal for the newly uplink optical network unit;

After receiving the distributed optical network unit identification message sent to itself, the newly-online optical network unit configures the optical network unit identifier for itself and switches itself to the 04 state;

The optical line terminal sends a ranging request message to measure the equalization delay of the newly-online optical network unit, and sends the measured equalization delay to the newly-launched optical network unit;

The newly-online optical network unit configures its own equalization delay, adjusts the transmission start point of the uplink frame, and sends a ranging response message to the optical line terminal.

The temporary optical network unit identifier does not overlap with the optical network unit identifier that the optical line terminal has configured.

After the sending of the registration identifier request message, the method further includes: the optical line terminal locally establishing the temporary entry corresponding to the sequence number of the newly-online optical network unit.

The method further includes:

After receiving the registration identifier request message, the optical network unit in the 02 state ignores the registration identifier request message;

After receiving the registration identifier request message, the optical network unit that is in the 03 state and the sequence number is inconsistent with the sequence number carried in the registration identifier request message ignores the registration identifier request message;

After receiving the registration identification request message, the network unit in the 04 or 05 state ignores the registration identification request message.

After the sending the optical network unit identity message, the method further includes: deleting, by the optical line terminal, the established temporary optical network unit identifier and the newly launched light The temporary entry corresponding to the serial number of the network unit.

A system for implementing a GPON registration process, the system comprising: a frame format defining unit, an optical line terminal, and a newly-online optical network unit;

a frame format definition unit, configured to define a frame format of the registration identifier request message and a frame format of the registration identifier response message;

An optical line terminal, configured to send a serial number request message;

The newly-online optical network unit is configured to send a sequence number response message to the optical line terminal after receiving the sequence number request message, where the serial number response message carries the sequence number of the newly-online optical network unit;

The optical line terminal is further configured to: after receiving the sequence number response message, parse the serial number therein, and determine whether the local version has a corresponding relationship between the serial number and the optical network unit identifier, and if yes, the serial number method Registration is performed; otherwise, the frame format of the registration identification request message defined by the frame format definition unit and the frame format of the registration identification response message are registered in the registration identification manner.

Among them, in the process of registering by registration mark,

The optical line terminal is configured to send a registration identifier request message, where the registration identifier request message carries a temporary optical network unit identifier configured by the optical line terminal for the newly-online optical network unit, and the newly-online optical network unit Serial number;

The newly-online optical network unit is configured to send a registration identifier response message to the optical line terminal after receiving the registration identifier request message sent to itself, where the registration identifier response message carries the registration of the newly-online optical network unit. Identification and the temporary optical network unit identifier;

The optical line terminal is configured to: after receiving the registration identifier response message, parse the registration identifier, and send the optical network unit identifier message according to the pre-configured correspondence between the registration identifier and the optical network unit identifier. The assigned optical network unit identifier message carries the legal optical network unit identifier allocated by the optical line terminal for the newly uplink optical network unit; The newly-online optical network unit is configured to: after receiving the distributed optical network unit identification message sent to itself, configure the optical network unit identifier for itself, and switch itself to the 04 state;

The optical line terminal is configured to send a ranging request message, measure an equalization delay of the newly uplink optical network unit, and send the measured equalization delay to the newly uplink optical network unit; The optical network unit is configured to configure its own equalization delay, adjust the sending start point of the uplink frame, and send a ranging response message to the optical line terminal.

It can be seen from the above technical solution that the present invention re-definitions the frame format of the Password Request message and the frame format of the Password Response message, and divides the redefinition of the Password Request message and the Password Response message into a different procedure, which is called a Registration ID Request. The message and the Registration ID Response message enable the OLT to obtain the Registration ID of the ONU through the interaction between the Registration ID Request message and the Registration ID Response message, thereby completing the registration in the Registration ID mode. In addition, the present invention can also use the existing The registration process of the SN mode; therefore, the present invention is compatible with the registration of the SN and the Registration ID mode, so that the GPON device can simultaneously support the G.984 standard and the TR_156 standard. DRAWINGS

1 is a schematic diagram of a network structure of a PON in the prior art;

2 is a schematic diagram of a message interaction process of a GPON registration process specified by the G.984 standard in the prior art;

3 is a schematic diagram of a message interaction process of a GPON registration process specified by the TR_156 standard in the prior art;

4 is a schematic diagram of a GPON registration process of the present invention;

FIG. 5 is a schematic diagram of a message interaction process of a GPON registration process according to the present invention; FIG.

6 is a schematic structural diagram of a GPON network registered with a SN and a Registration ID method according to the present invention; FIG. 7 is a schematic structural diagram of an implementation system of a GPON registration process according to the present invention. detailed description

The core idea of the present invention is: a frame format for defining a registration ID request message and a registration ID response message, which is used to enable the implementation method of the GPON registration process of the present invention to be compatible with the SN and the Registration ID mode. registered. Furthermore, the present invention can be applied to both 1G GPON and 10G GPON.

The technical solution proposed by the present invention does not change the registration process specified by the standard, that is, the registration process based on the SN method is completely consistent with the registration process specified by the G.984 standard; the registration process based on the Registration ID method still uses the Password Request message and the Password Response. The frame format of the message acquires the Registration ID of the ONU.

However, for the registration process based on the Registration ID method, the present invention re-definitions the frame format of the Password Request message and the Password Response message. For convenience of description, the redempted Password Request message and Password Response are eliminated. The 'interval' is called 'Registration ID Request' and 'Registration ID Response'.

The frame format of the defined Registration ID Request message is shown in Table 1.

Table 1

The frame format of the Registration ID Request message and the frame of the Password Request message The main difference between the format is: In the frame format of the Password Request message, the first byte, that is, the "ONU ID" byte is used to fill the legal ONU ID assigned by the OLT to the ONU; and in the frame format of the Registration ID Request message, The 1 byte or "ONU ID" byte is used to fill the temporary ONU ID assigned by the OLT to the ONU.

Before the OLT sends a Registration ID Request message to the ONU, the OLT randomly extracts an ONU ID that is not allocated in advance to the "ONU ID" byte. Here, the ONU ID is referred to as a temporary ONU ID. It should be understood by those skilled in the art that the temporary ONU ID should not overlap with the SN+ONU ID table pre-configured by the OLT and the ONU ID included in the Registration ID+ONU ID table. In addition, the OLT sends a frame of Registration ID Request message. A temporary entry corresponding to the temporary ONU ID and the SN is established locally. Similarly, the temporary ONU ID and the existing temporary ONU ID in the established temporary entry are not duplicated.

The "ONU SN" byte is used to fill the SN of an ONU, indicating the registration ID of the ONU in order to obtain the SN.

The frame format of the defined Registration ID Response message is shown in Table 2.

Table 2

The main difference between the format of the Registration ID Response message and the frame format of the Password Response message is: In the frame format of the Password Response message, the third byte. The 12th byte is filled with the password of the ONU; and in the frame format of the Registration ID Response message, the 3rd byte indicates that the 4th byte to the 11th byte are the effective number of bits, the 4th byte to the 11th word The "Registration ID" byte is used to fill the Registration ID of the ONU. The Registration ID is 8 bytes, and the 12th byte is reserved.

After the frame format of the Registration ID Request message and the Registration ID Response message is defined, it can be found that the present invention solves two problems raised in the background art: that is, the ONU is obtained through the redefined Registration ID Request message and the Registration ID Response message. The Registration ID, which does not violate the GPON registration process specified by the TR_156 standard; 2. The present invention fills the temporary ONU ID in both the Registration ID Request and the Registration ID Response message, so the ONU ID proposed in the background art is not filled. The problem.

After defining the Registration ID Request and the Registration ID Response, as shown in Figure 4-5, the GPON registration process of the present invention includes the following steps:

Step 401: The OLT periodically sends a Serial Number Request message periodically.

Step 402: After receiving the Serial Number Request message from the OLT, the newly uploaded ONU sends a Serial Number Response message to the OLT, where the Serial Number Response message carries the SN of the newly uplinked ONU.

The new ONU is the unregistered ONU in the 03 state, and the newly uploaded ONU performs the following operations before sending the Serial Number Response message:

The ONU is powered on in the 01 state; immediately after switching to the OLT, it switches to the 02 state; after that, the ONU receives the first ploam message: after the up_stream message, adjusts its working parameters such as sending light according to the up_stream message. Power, etc., and switch itself to the 03 state. Therefore, the ONU sends a Serial Number Response message in the 03 state.

Step 403: After receiving the Serial Number Response message, the OLT parses out the SN, and determines whether the corresponding relationship between the SN and the ONU ID is pre-configured locally. If yes, Then, the steps 404a to 407a are performed, that is, the registration is completed in the SN mode; otherwise, the steps 404b to 409b are performed, that is, the registration is completed according to the Registration ID mode, and the frame format and the Registration ID of the defined Registration ID Request message are used in the registration process. The frame format of the Response message is used to retrieve the Registration ID.

The correspondence between the pre-configured SN and the ONU ID on the OLT is represented by the SN+ONU ID table.

(SN, ONU ID Table) is presented in the form of Figure 6.

Step 404a: The OLT sends an Assign ONU ID message according to the pre-configured relationship between the SN and the ONU ID, where the Assign ONU ID message carries the legal ONU ID assigned by the OLT to the newly uploaded ONU.

Step 405a, after receiving the Assign ONU ID message sent to itself, the newly uploaded ONU configures the ONU ID for itself and switches itself to the O4 state.

Step 406a: The OLT sends a Ranging Request message to measure the equalization delay of the newly uplinked ONU, and sends the measured equalization delay to the newly uploaded ONU.

Step 407a, the newly-online ONU configures its own equalization delay, adjusts the sending start point of the uplink frame, and sends a Ranging Response message to the OLT.

The Ranging Response message carries the SN of the newly uplinked ONU.

At this point, the ONU is successfully registered according to the SN mode.

Step 404b: The OLT sends a registration ID Request message, where the registration ID Request message carries the temporary ONU ID configured by the OLT for the newly-online ONU and the SN of the newly-online ONU.

After the registration ID Request message is sent, the OLT establishes a temporary entry corresponding to the SN of the newly uploaded ONU, that is, Sn+temp_onu_id, as shown in FIG. 6 .

The temporary ONU ID is not the same as the ONU ID configured by the OLT. The configured ONU ID includes: OLT pre-configured SN+ONU ID table, Registration ID+ONU ID The ONU ID contained in the table and the existing temporary ONU ID in the established temporary entry.

The temporary entries corresponding to these temporary ONU IDs and SNs form a Temp Table of SN+Temp ONU IDs, as shown in Figure 6.

Step 405b, after receiving the registration ID Request message sent to itself, the newly uploaded ONU sends a Registration ID Response message to the OLT, and the Registration ID

The Response message carries the registration ID of the newly uploaded ONU and the temporary ONU ID sent by the OLT.

In addition, since one OLT will simultaneously hang multiple ONUs, and the downlink messages of the OLT are sent in broadcast mode, each ONU will receive the Registration ID Request message, and the ONU will respond according to its own state. The Registration ID Request message is processed, specifically, the following situations are included:

After receiving the Registration ID Request message, the ONU in the 02 state ignores the Registration ID Request message.

After receiving the Registration ID Request message, the other ONUs in the 03 state resolve the SN and can determine that the SN is inconsistent with its own SN, and then ignore the Registration ID Request message.

Here, the other ONUs in the 03 state are ONUs whose SNs are inconsistent with the SNs in the Registration ID Request message.

After receiving the Registration ID Request message, the 0NU in the 04 or 05 state resolves the temporary ONU ID and can determine that the temporary ONU ID does not match its own ONU ID, and then ignores the Registration ID Request message.

The ONU can determine that the temporary ONU ID is inconsistent with its own ONU ID because: The ONU in the 04 or 05 state has been configured with the ONU ID by the 0LT, and the temporary ONU ID and the pre-configured ONU in the OLT are mentioned above. The ID is different.

Step 406b: After the OLT receives the Registration ID Response message, parse the The registration ID, and the assignment ONU ID message is sent according to the pre-configured correspondence between the registration ID and the ONU ID. The Assign ONU ID message carries the legal ONU ID assigned by the OLT to the newly-online ONU.

The legal ONU ID is different from the previously configured temporary ONU ID.

The correspondence between the pre-configured Registration ID and the ONU ID on the OLT is

The Registration ID+ONU ID table (Registration ID, ONU ID Table) is presented as shown in Figure 6.

In addition, if the correspondence between the Registration ID and the ONU ID is not configured in advance on the OLT, the registration fails, and the process ends.

And after the Assign ONU ID message is sent, the OLT deletes the established temporary ONU.

A temporary entry whose ID corresponds to the SN of the newly uploaded ONU.

Step 407b, after receiving the Assign ONU ID message sent to itself, the newly uploaded ONU configures the ONU ID for itself and switches itself to the 04 state.

Step 408b: The OLT sends a Ranging Request message to measure the equalization delay of the newly uplinked ONU, and sends the measured equalization delay to the newly uploaded ONU.

Step 409b: The newly-online ONU configures its own equalization delay, adjusts the sending start point of the uplink frame, and sends a Ranging Response message to the OLT.

The Ranging Response message carries the SN of the newly uplinked ONU.

At this point, the registration of the ONU in accordance with the Registration ID method is successful.

To achieve the above method, the present invention provides a system for implementing a GPON registration process. As shown in FIG. 7, the system includes: a frame format definition unit 10, an OLT 20, and a newly-online ONU 30;

a frame format definition unit 10, configured to define a frame format of a Registration ID Request message and a Registration ID Response message;

The OLT 20 is configured to send a Serial Number Request message. The newly-online ONU 30, after receiving the Serial Number Request message, sends a Serial Number Response message to the OLT 20, where the Serial Number Response message carries the SN of the newly-online ONU 30;

The OLT 20 is further configured to: after receiving the Serial Number Response message, parse the SN, and determine whether the corresponding relationship between the SN and the ONU ID is pre-configured locally, and if yes, register in the SN mode; otherwise, adopt The frame format of the Registration ID Request message and the Registration ID Response message defined by the frame format definition unit 10 is registered in the Registration ID mode.

In the process of registering by Registration ID,

The OLT 20 is configured to send a Registration ID Request message, the Registration ID

The request message carries the temporary ONU ID configured by the OLT 20 for the newly-online ONU 30, and the SN of the newly-online ONU 30;

The new ONU 30, after receiving the registration ID Request message sent to itself, sends a Registration ID Response message to the OLT 20, where the Registration ID Response carries the Registration ID of the newly uploaded ONU 30 and the Temporary ONU ID;

The OLT 20 is configured to: after receiving the Registration ID Response message, parse the Registration ID, and send the Assign ONU ID message to the Assign ONU ID message according to the pre-configured correspondence between the Registration ID and the ONU ID. Carrying a legal ONU ID assigned by the OLT 20 to the newly uploaded ONU 30;

The newly-online ONU 30 is configured to configure an ONU ID for itself after receiving the Assign ONU ID message sent to itself, and switch itself to the O4 state;

The OLT 20 is configured to send a Ranging Request message, measure the equalization delay of the ONU 30, and send the measured equalization delay to the ONU 30 of the new uplink;

The newly-online ONU 30 is configured to configure its own equalization delay, adjust the transmission start point of the uplink frame, and send a Ranging Response message to the OLT 20. The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

Claim

A method for implementing a gigabit passive optical network registration process, characterized in that: a frame format of a registration identifier request message and a frame format of a registration identifier response message are defined, the method comprising: sending, by the optical line terminal, a sequence number request message ;

2. The method for implementing a gigabit passive optical network registration process according to claim 1, wherein:

In the frame format of the registration identifier request message, the first byte is used to fill the temporary optical network unit identifier allocated by the optical line terminal for the optical network unit;

The method for implementing the gigabit passive optical network registration process according to claim 1, wherein the new online optical network unit sends the serial number response message, the method further comprising:

The method for implementing the registration process of the gigabit passive optical network according to claim 1, or 2, or 3, wherein the process of registering by the registration identifier includes: The optical line terminal sends a registration identifier request message, where the registration identifier request message carries the temporary optical network unit identifier configured by the optical line terminal for the newly uplink optical network unit, and the sequence number of the newly uplink optical network unit;

After receiving the registration identifier request message sent to itself, the newly-received optical network unit sends a registration identifier response message to the optical line terminal, where the registration identifier response message carries the registration identifier of the newly-online optical network unit and the Temporary optical network unit identification;

After receiving the registration identifier response message, the optical line terminal parses out the registration identifier, and sends an optical network unit identifier message, the assigned optical network unit identifier, according to the pre-configured correspondence between the registration identifier and the optical network unit identifier. The message carries the legal optical network unit identifier allocated by the optical line terminal for the newly uplink optical network unit;

The method for implementing the registration process of the bit-passive optical network according to claim 4, wherein the temporary optical network unit identifier is not overlapped with the optical network unit identifier that has been configured by the optical line terminal.

The method for implementing the gigabit passive optical network registration process according to claim 5, wherein after the sending the registration identifier request message, the method further includes:

The optical line terminal locally establishes a temporary entry corresponding to the serial number of the optical network unit of the new uplink.

The method for implementing the gigabit passive optical network registration process according to claim 5, wherein the method further comprises: After receiving the registration identifier request message, the optical network unit in the 02 state ignores the registration identifier request message;

The method for implementing the gigabit passive optical network registration process according to claim 6, wherein after the allocating the optical network unit identity message, the method further comprises: deleting, by the optical line terminal, the established The temporary optical network unit identifies a temporary entry corresponding to the serial number of the newly-online optical network unit.

A system for implementing a gigabit passive optical network registration process, the system comprising: a frame format defining unit, an optical line terminal, and a newly-online optical network unit;

An optical line terminal, configured to send a serial number request message;

10. The system for implementing a Gigabit passive optical network registration process according to claim 9, It is characterized in that, in the process of registering by registration mark,

The optical line terminal is configured to: after receiving the registration identifier response message, parse the registration identifier, and send the optical network unit identifier message according to the pre-configured correspondence between the registration identifier and the optical network unit identifier. The assigned optical network unit identifier message carries the legal optical network unit identifier allocated by the optical line terminal for the newly uplink optical network unit;

The newly-online optical network unit is configured to: after receiving the distributed optical network unit identification message sent to itself, configure the optical network unit identifier for itself, and switch itself to the 04 state;

The optical line terminal is configured to send a ranging request message to measure an equalization delay of the newly uplink optical network unit, and send the measured equalization delay to the newly uplink optical network unit; The uplink optical network unit is configured to configure its own equalization delay, adjust the sending start point of the uplink frame, and send a ranging response message to the optical line terminal.