CN101674501A - Realization method and system of gigabit passive optical network registration process - Google Patents

Realization method and system of gigabit passive optical network registration process Download PDF

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Publication number
CN101674501A
CN101674501A CN200910093860A CN200910093860A CN101674501A CN 101674501 A CN101674501 A CN 101674501A CN 200910093860 A CN200910093860 A CN 200910093860A CN 200910093860 A CN200910093860 A CN 200910093860A CN 101674501 A CN101674501 A CN 101674501A
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optical network
network unit
sign
request message
standard grade
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CN101674501B (en
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陈晓
王新余
王懿
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2010/073162 priority patent/WO2011035602A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0088—Signalling aspects

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Small-Scale Networks (AREA)

Abstract

The invention discloses a realization method of gigabit passive optical network registration process, wherein the frame formats of a registration identification request message and a registration identification response message are defined. The method includes the following steps: an optical line terminal sends a serial number request message; after receiving the serial number request message, a newly on line optical network unit sends a serial number response message to the optical line terminal, and the serial number response message carries the serial number of the newly on line optical network unit; after receiving the serial number response message, the optical line terminal analyzes the serial number in the response message and judges whether the correspondence between the serial number and the identification of the optical network unit is locally configured in advance; and if so, registration is conducted according to the serial number mode, otherwise, the defined frame formatsof the registration identification request message and the registration identification response message are adopted to conduct registration according to the registration identification mode. Additionally, the invention discloses a realization system of gigabit passive optical network registration process.

Description

The implementation method of gigabit passive optical network registration process and system
Technical field
The present invention relates to gigabit passive optical network (GPON, Gigabit-capable Passive OpticalNetwork) system, relate in particular to a kind of implementation method and system of GPON register flow path.
Background technology
EPON (PON) technology is the optical fiber access technology of a kind of point to multiple spot, and PON is made up of the optical line terminal (OLT) of office's side, the optical network unit of user side (ONU, Optical Network Unit) and Optical Distribution Network (ODN).ODN arrives multipoint configuration for point, and promptly an OLT connects a plurality of ONU by ODN, as shown in Figure 1.
PON can be subdivided into: ATM Passive Optical Network (APON), Ethernet passive optical network (EPON) and GPON.Wherein, APON with ATM(Asynchronous Transfer Mode) as data link layer; EPON, and expands Ethernet and makes it to have the communication capacity that a little arrives multiple spot as data link layer with Ethernet; GPON, can provide support to multiple business as link layer with ATM/GEM (GPON method for packing).
Along with the user to the improving constantly of bandwidth and quality of service requirement, light inserts and becomes extremely urgent.Increasing operator takes up to dispose Optical Access Network, and still, operator early stage, scale was disposed access network based on Digital Subscriber Line (DSL), considered cost factor, and existing network can not replaced immediately, also can continue reservation.
The equipment that existing network uses is substantially all followed the wide band model that TR_101 proposes.Consider from aspects such as cost, evolution, network interworking and unified management maintenances, even operator wishes under the situation of multiple access network coexistence, also can there be a unified wide band model to come network is managed, to improve network interworking, reduce equipment complexity, to reduce cost.
Practice finds that the wide band model that the TR_101 standard proposes has good compatibility and extensibility, also is applicable to other broadband access technology, such as Fiber to the home (FTTH)/xPON.
Therefore, the operator that GPON is disposed in plan wishes that very the deployment of GPON also can follow this wide band model, and carried out groping and inquiring into of a series of this respects with equipment vendor, conclusion is that this wide band model is fit to the GPON access technology generally, but also has some places need carry out complementary definition and standardization.Therefore, broadband forum proposes the TR_156 standard on the TR_101 standard base in December, 2008, and it is the additional and expansion to the TR_101 standard, specially at the GPON access technology.
At present, except the TR_156 standard, the G.984 standard that International Telecommunications Union's telecommunication standards group (ITU-T) proposes also is another technical standard that GPON equipment need be followed, and G.984 standard and TR_101 standard all have separately regulation to the GPON register flow path.
As shown in Figure 2, G.984 the message interaction process of the GPON register flow path of standard code may further comprise the steps:
Step 201, OLT regularly constantly issues serial number request (Serial Number Request) message.
The purpose of this step is by obtaining ONU to be found in the response of Serial Number Request message.Here, the response to Serial Number Request message refers to sequence number response (Serial Number Response) message that ONU described below sends.
Step 202, ONU has just powered on and has been in the O1 state; Be connected the O2 state that switches to immediately afterwards with OLT; After this, ONU receives first physical layer operations management maintenance (ploam) message: promptly after up expense (up_stream) message that OLT sends, adjust self running parameter such as transmitting optical power etc. according to this up_stream message, and will self switch to the O3 state; Under the O3 state, ONU receives after the Serial Number Request message from OLT, sends Serial Number Response message in response, carries the SN of ONU in this Serial NumberResponse message.
Step 203, OLT receives after the Serial Number Response message, defining new ONU by the SN that carries in the Serial NumberResponse message reaches the standard grade, therefore go up this pre-configured SN and the corresponding relation of ONU ID according to OLT, be this ONU that newly reaches the standard grade distribution ONU ID, and distribute ONU ID (Assign ONU ID) message that ONU ID is carried to the ONU side by issuing.
The ONU that newly reaches the standard grade receives after the Assign ONU ID message of issuing self, is self configuration ONUID, and will self switches to the O4 state.
Step 204, OLT issues distance measurement request (Ranging Request) message.
The purpose of this step is to measure the balanced time delay of this ONU that newly reaches the standard grade, and the balanced time delay that will measure sends to the ONU that this is newly reached the standard grade.
Step 205, the balanced time delay of this ONU that newly reaches the standard grade configuration self is adjusted the transmission starting point of uplink frame, and to OLT transmission ranging response (Ranging Response) message, is carried the SN of this ONU that newly reaches the standard grade in this Ranging Response message.
So far, ONU succeeds in registration.
After step 205, alternatively, this GPON register flow path further may further comprise the steps:
Step 206～207, OLT sends password request (Password Request) message to this ONU that newly reaches the standard grade; This ONU that newly reaches the standard grade sends password response (Password Response) message to OLT, carries the password of ONU in this Password Response message.
Wherein, be filled with ONU ID in the Password Request message, in order to show to specifying ONU to obtain password; Equally, also be filled with ONU ID in the Password Response message.
This process is used for OLT asks password to ONU, to confirm the legitimacy of ONU.
TR_156 standard code OLT can set up with the management of ONU by SN mode or sign-on ID (Registration ID) mode and be connected, but general the mixing uses this dual mode in real process.
Wherein, the GPON register flow path of the SN mode of TR_156 standard code and standard code G.984 is consistent.
As shown in Figure 3, the message interaction process of the GPON register flow path of TR_156 standard code may further comprise the steps:
Step 301, OLT regularly constantly issues Serial Number Request message.
Step 302, ONU has just powered on and has been in the O1 state; Be connected the O2 state that switches to immediately afterwards with OLT; After this, ONU receives first ploam message: promptly after the up_stream message, adjust self running parameter such as transmitting optical power etc. according to this up_stream message, and will self switch to the O3 state; Under the O3 state, ONU receives after the Serial Number Request message from OLT, sends Serial NumberResponse message in response, carries the SN of ONU in this Serial Number Response message.
OLT receives and defines new ONU by the SN that carries in the Serial Number Response message and reach the standard grade after the Serial Number Response message.If be provided with the corresponding relation of this SN and ONUID on the OLT in advance, then this ONU presses the renewal of registration of SN mode, and step backward is with step 203～205, so do not repeat them here; Otherwise, press the renewal of registration of Registration ID mode, and may further comprise the steps:
Step 303, OLT continues issuing message and obtains its Registration ID to the ONU that newly reaches the standard grade.This message is used the frame format of Password Request message.
Step 304, ONU receives after the Password Request message, replys message to OLT, carries the Registration ID of ONU in this message.This message is used the frame format of Password Response message.
Step 305, OLT receives after the Password Response message, parse RegistrationID wherein, if the corresponding relation of last pre-configured this Registration ID of OLT and ONU ID, then issue Assign ONU ID message, carry the ONU ID that OLT distributes for this ONU that newly reaches the standard grade in this Assign ONU ID message; Otherwise, registration failure, flow process finishes.
The ONU that newly reaches the standard grade receives after the Assign ONU ID message of issuing self, is self configuration ONUID, and will self switches to the O4 state.
Step 306, OLT issues Ranging Request message, in order to measure the balanced time delay of this ONU that newly reaches the standard grade; And the balanced time delay that will measure sends to the ONU that this is newly reached the standard grade.
Step 307, the balanced time delay of this ONU that newly reaches the standard grade configuration self is adjusted the transmission starting point of uplink frame, and to OLT transmission Ranging Response message, is carried the SN of ONU in this Ranging Response message.
So far, ONU succeeds in registration.
By above two kinds of GPON register flow paths more as can be known: G.984 standard code, Password Request message is issued by OLT after range finding is finished; In addition, before range finding, ONU has distributed ONU ID by OLT, and switches to the O4 state, that is to say, Password Request message should issue when ONU is in the O4 state.The TR_156 standard code, OLT obtains to Registration ID's that the Password Request message of prescribed by standard realizes by using G.984, and ONU fills ONU in the Password of PasswordResponse message field Registration ID reports the detail no standard.According to the TR_156 standard, OLT issues Password Request message when obtaining RegistrationID, and ONU reality only is in the O3 state, and this receives Password Request message generation contradiction with standard code ONU G.984 under the O4 state.And, need to fill ONUID in the Password Request message, in order to show to specifying ONU to obtain Registration ID; Yet this moment, ONU was in the O3 state, also was not assigned with ONU ID, so ONU ID has no way of having filled out so actual existing problems that implement of GPON register flow path of the Registration ID mode of TR_156 standard code.
The problems referred to above make GPON equipment support at the same time G.984 to have great difficulty on the standard and TR_156 standard.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of implementation method and system of GPON register flow path, can compatible SN and the registration of Registration ID mode, thus make GPON equipment can support G.984 standard and TR_156 standard simultaneously.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of implementation method of GPON register flow path, the frame format of definition sign-on ID request message and sign-on ID response message, this method comprises:
Optical line terminal issues serial number request message;
The optical network unit of newly reaching the standard grade receives after the serial number request message, to the optical line terminal response message that transmits Sequence Number, carries the sequence number of this optical network unit of newly reaching the standard grade in this sequence number response message;
Optical line terminal is received after the sequence number response message, parses sequence number wherein, and judges the local corresponding relation that whether is provided with this sequence number and optical network unit marks in advance, if then register by the sequence number mode; Otherwise, adopt the frame format of defined sign-on ID request message and sign-on ID response message to register by the sign-on ID mode.
Wherein, in the frame format of described sign-on ID request message, it is the interim optical network unit marks that optical network unit distributes that the 1st byte is used for fill light road terminal;
In the frame format of described sign-on ID response message, the 4th byte to the 11 bytes are used to fill the sign-on ID of optical network unit.
Wherein, the optical network unit of newly reaching the standard grade is before the response message that transmits Sequence Number, and described method further comprises:
Described optical network unit of newly reaching the standard grade powers on, and is in the O1 state; After optical line terminal is connected, the O2 state will self be switched to; Receive after the up Overhead Message that optical line terminal sends, adjust the running parameter of self, and will self switch to the O3 state.
Wherein, the described process of registering by the sign-on ID mode comprises:
Optical line terminal issues the sign-on ID request message, carries optical line terminal in this sign-on ID request message and is the interim optical network unit marks of this optical network unit of newly reaching the standard grade configuration and the sequence number of this optical network unit of newly reaching the standard grade;
This optical network unit of newly reaching the standard grade is received after the sign-on ID request message of issuing self, send the sign-on ID response message to optical line terminal, carry the sign-on ID and the described interim optical network unit marks of this optical network unit of newly reaching the standard grade in this sign-on ID response message;
Optical line terminal is received after the sign-on ID response message, parse sign-on ID wherein, and according to this pre-configured sign-on ID and the corresponding relation of optical network unit marks, optical line terminal issues and distributes optical network unit marks message, carries the legal optical network unit marks that optical line terminal distributes for this optical network unit of newly reaching the standard grade in this distribution optical network unit marks message;
This optical network unit of newly reaching the standard grade is received after the distribution optical network unit marks message of issuing self, is self configuration optical network unit marks, and will self switches to the O4 state;
Optical line terminal issues distance measurement request message, measures the balanced time delay of this optical network unit of newly reaching the standard grade, and the balanced time delay that will measure sends to the optical network unit that this is newly reached the standard grade;
The balanced time delay of this optical network unit of newly reaching the standard grade configuration self, the transmission starting point of adjustment uplink frame, and to optical line terminal transmission ranging response message.
Wherein, the optical network unit marks that disposed of described interim optical network unit marks and optical line terminal does not repeat.
Wherein, after issuing the sign-on ID request message, described method further comprises:
Optical line terminal is set up the described interim optical network unit marks interim list item corresponding with the sequence number of described optical network unit of newly reaching the standard grade in this locality.
Wherein, described method further comprises:
The optical network unit that is in the O2 state is received after the described sign-on ID request message, ignores described sign-on ID request message;
Be in the inconsistent optical network unit of sequence number that carries in O3 state and sequence number and the described sign-on ID request message and receive after the described sign-on ID request message, ignore described sign-on ID request message;
The network element that is in O4 or O5 state is received after the described sign-on ID request message, ignores described sign-on ID request message.
Wherein, after issuing distribution optical network unit marks message, described method further comprises:
The described interim optical network unit marks interim list item corresponding that the optical line terminal deletion has been set up with the sequence number of described optical network unit of newly reaching the standard grade.
A kind of realization system of GPON register flow path, this system comprises: frame format definition unit, optical line terminal and the optical network unit of newly reaching the standard grade; Wherein,
The frame format definition unit is used to define the frame format of sign-on ID request message and sign-on ID response message;
Optical line terminal is used to issue serial number request message;
The optical network unit of newly reaching the standard grade is used to receive after the serial number request message, to the optical line terminal response message that transmits Sequence Number, carries the sequence number of this optical network unit of newly reaching the standard grade in this sequence number response message;
Optical line terminal also is used for: receive after the sequence number response message, parse sequence number wherein, and judge the local corresponding relation that whether is provided with this sequence number and optical network unit marks in advance, if then register by the sequence number mode; Otherwise, adopt the sign-on ID request message of frame format definition unit definition and the frame format of sign-on ID response message to register by the sign-on ID mode.
Wherein, in the process of registering by the sign-on ID mode,
Described optical line terminal is used to issue the sign-on ID request message, carries optical line terminal in this sign-on ID request message and is the interim optical network unit marks of this optical network unit of newly reaching the standard grade configuration and the sequence number of this optical network unit of newly reaching the standard grade;
Described optical network unit of newly reaching the standard grade, be used to receive after the sign-on ID request message of issuing self, send the sign-on ID response message to optical line terminal, carry the sign-on ID and the described interim optical network unit marks of this optical network unit of newly reaching the standard grade in this sign-on ID response message;
Described optical line terminal, be used to receive after the sign-on ID response message, parse sign-on ID wherein, and according to this pre-configured sign-on ID and the corresponding relation of optical network unit marks, optical line terminal issues and distributes optical network unit marks message, carries the legal optical network unit marks that optical line terminal distributes for this optical network unit of newly reaching the standard grade in this distribution optical network unit marks message;
Described optical network unit of newly reaching the standard grade is used to receive after the distribution optical network unit marks message of issuing self, is self configuration optical network unit marks, and will self switches to the O4 state;
Described optical line terminal is used to issue distance measurement request message, measures the balanced time delay of this optical network unit of newly reaching the standard grade, and the balanced time delay that will measure sends to the optical network unit that this is newly reached the standard grade;
Described optical network unit of newly reaching the standard grade is used to dispose the balanced time delay of self, adjusts the transmission starting point of uplink frame, and sends ranging response message to optical line terminal.
As can be seen from the above technical solutions, the present invention redefines by the frame format to Password Request message and Password Response message, and the Password Request message after will redefining and Password Response message are called Registration ID Request message and Registration ID Response message, make that OLT can be by the Registration ID that gets access to ONU alternately of Registration ID Request message and Registration ID Response message, and then finish registration in Registration ID mode; In addition, the present invention continues to use the register flow path of existing SN mode; Therefore, the present invention can compatible SN and the registration of Registration ID mode, thereby makes GPON equipment can support G.984 standard and TR_156 standard simultaneously.
Description of drawings
Fig. 1 is the schematic network structure of PON in the prior art;
Fig. 2 is the message interaction process schematic diagram of the GPON register flow path of standard code G.984 in the prior art;
Fig. 3 is the message interaction process schematic diagram of the GPON register flow path of TR_156 standard code in the prior art;
Fig. 4 is a GPON register flow path schematic diagram of the present invention;
Fig. 5 is the message interaction process schematic diagram of GPON register flow path of the present invention;
Fig. 6 is the GPON schematic network structure that compatible SN of the present invention and Registration ID mode are registered;
Fig. 7 is the structural representation of the realization system of GPON register flow path of the present invention.
Embodiment
Core concept of the present invention is: the frame format of definition sign-on ID request (Registration ID Request) message and sign-on ID response (Registration ID Response) message is used to make the implementation method of GPON register flow path of the present invention can compatible SN and the registration of Registration ID mode.In addition, the present invention both can be used for 1G GPON, also can be used for 10G GPON.
The technical scheme that the present invention proposes does not change the register flow path of standard code, that is: in full accord with the register flow path of G.984 standard code based on the register flow path of SN mode; Register flow path based on Registration ID mode still adopts the frame format of Password Request message and Password Response message to obtain the Registration ID of ONU.
But, for register flow path based on Registration ID mode, the present invention carries out standard compliant redefining to wherein the PasswordRequest message and the frame format of Password Response message, for convenience of description, Password Request message and the Password Response message after will redefining here is called Registration ID Request message and Registration ID Response message.
The frame format of the Registration ID Request message after the definition is as shown in table 1.
Byte number Content Describe
??1 ??ONU?ID OLT is the interim ONUID that ONU distributes
??2 ??00001001 Show that type of message is " Registration ID Request "
??3--10 ??ONU?SN Fill the SN of ONU
??11-12 Do not stipulate Reserve
Table 1
The main distinction of the frame format of this Registration ID Request message and the frame format of Password Request message is: in the frame format of Password Request message, the 1st byte i.e. " ONUID " byte is used to fill the legal ONU ID that OLT is the ONU distribution; And in the frame format of Registration ID Request message, the 1st byte i.e. " ONU ID " byte is used to fill the interim ONU ID that OLT is the ONU distribution.
Before ONU sent Registration ID Request message, OLT randomly drawed an ONU ID who does not distribute in advance and is filled into " ONU ID " byte,, this ONU ID is called interim ONU ID here at OLT.It will be appreciated by those skilled in the art that this interim ONU ID should not repeat with the contained ONU ID of the pre-configured SN+ONU ID of OLT table and Registration ID+ONU ID table; In addition, OLT whenever issues a frame Registration ID Request message, just sets up an interim list item that this interim ONU ID is corresponding with SN in this locality, and in like manner, this interim ONU ID and existing interim ONU ID in the interim list item set up do not repeat yet.
" ONU SN " byte is used to fill the SN of certain ONU, and expression is in order to obtain the Registration ID of SN for the ONU of this value.
The frame format of the Registration ID Response message after the definition is as shown in table 2.
Byte number Content Describe
??1 ??ONU?ID Fill the entrained interim ONU ID of Registration ID Request message
??2 ??00000010 Show that type of message is " Registration ID Response "
??3 ??nnnnnnnn The 4th byte to the 11 bytes are the significant bit number
??4--11 ??Registration?ID Fill the Registration ID of ONU
??12 Do not stipulate Reserve
Table 2
The main distinction of the frame format of this Registration ID Response message and the frame format of Password Response message is: in the frame format of Password Response message, that the 3rd byte to the 12 bytes are filled is the Password of ONU; And in the frame format of Registration ID Response message, the 3rd byte representation the 4th byte to the 11 bytes are the significant bit number, the 4th byte to the 11 bytes are the Registration ID that " Registration ID " byte is used to fill ONU, this Registration ID is 8 bytes, and the 12nd byte is reserved.
After the frame format of definition Registration ID Request message and Registration ID Response message, can find, the invention solves two problems that propose in the background technology: promptly obtain the Registration ID of ONU by Registration ID Request message after redefining and Registration ID Response message, this and without prejudice to the GPON register flow path of TR_156 standard code; Two, the present invention has all filled interim ONU ID in Registration ID Request and Registration ID Response message, so solved the problem that the ONU ID that proposes in the background technology has no way of having filled out.
After the frame format of definition Registration ID Request message and Registration ID Response message, shown in Fig. 4-5, GPON register flow path of the present invention may further comprise the steps:
Step 401, OLT regularly constantly issues Serial Number Request message.
Step 402, the ONU that newly reaches the standard grade receives after the Serial Number Request message from OLT, sends Serial Number Response message to OLT, carries the SN of this ONU that newly reaches the standard grade in this Serial Number Response message.
Wherein, the ONU that newly reaches the standard grade is meant unregistered and is in the ONU of O3 state, and the ONU that newly reaches the standard grade also passed through following operation before sending Serial Number Response message:
ONU has just powered on and has been in the O1 state; Be connected the O2 state that switches to immediately afterwards with OLT; After this, ONU receives first ploam message: promptly after the up_stream message, adjust self running parameter such as transmitting optical power etc. according to this up_stream message, and will self switch to the O3 state.Therefore, ONU sends Serial Number Response message under the O3 state.
Step 403, OLT receives after the Serial Number Response message, parses SN wherein, and judges the local corresponding relation that whether is provided with this SN and ONU ID in advance, if then execution in step 404a～407a promptly finishes registration by the SN mode; Otherwise, execution in step 404b～409b, promptly finish registration, in this registration process, use the frame format of defined Registration IDRequest message and Registration ID Response message to obtain Registration ID by Registration ID mode.
Wherein, last pre-configured SN of OLT and the corresponding relation of ONU ID present with the form that SN+ONU ID shows (SN, ONU ID Table), as shown in Figure 6.
Step 404a, according to this pre-configured SN and the corresponding relation of ONU ID, OLT issues AssignONU ID message, carries the legal ONU ID that OLT distributes for this ONU that newly reaches the standard grade in this Assign ONU ID message.
Step 405a, this ONU that newly reaches the standard grade receive after the Assign ONU ID message of issuing self, are self configuration ONU ID, and will self switch to the O4 state.
Step 406a, OLT issue Ranging Request message, and in order to measuring the balanced time delay of this ONU that newly reaches the standard grade, and the balanced time delay that will measure sends to the ONU that this is newly reached the standard grade.
Step 407a, the balanced time delay of this ONU that newly reaches the standard grade configuration self, the transmission starting point of adjustment uplink frame, and to OLT transmission Ranging Response message.
Carry the SN of this ONU that newly reaches the standard grade in this Ranging Response message.
So far, ONU succeeding in registration according to the SN mode.
Step 404b, OLT issue Registration ID Request message, carry OLT in this Registration ID Request message and are the interim ONU ID of this ONU that newly reaches the standard grade configuration and the SN of this ONU that newly reaches the standard grade.
After issuing Registration ID Request message, OLT sets up this interim ONU ID interim list item corresponding with the SN of this ONU that newly reaches the standard grade in this locality, i.e. Sn+temp_onu_id, as shown in Figure 6.
The ONU ID that this interim ONU ID and OLT disposed does not repeat, wherein, the described ONU ID that has disposed comprises: the existing interim ONU ID in ONU ID that SN+ONU ID shows, Registration ID+ONU ID table is contained that OLT is pre-configured and the interim list item of having set up.
The interim list item that these interim ONU ID are corresponding with SN constitutes the temporary table (Temp Table) of an interim ONU ID of SN+, as shown in Figure 6.
Step 405b, this ONU that newly reaches the standard grade receives after the Registration ID Request message of issuing self, send Registration ID Response message to OLT, carry the Registration ID of this ONU that newly reaches the standard grade and the interim ONU ID that OLT sends in this Registration ID Response message.
In addition, because an OLT is together with hanging a plurality of ONU at present, and the downstream message of OLT all is to issue with broadcast mode, therefore each ONU can receive this Registration ID Request message, and ONU can come this Registration ID Request message is handled it according to self residing state, specifically, comprise following several situation:
The ONU that is in the O2 state receives after the Registration ID Request message, ignores this Registration ID Request message.
Other ONU that are in the O3 state receive after the Registration ID Request message, parse SN wherein, and can judge that this SN and the SN of self are inconsistent, so ignore this Registration IDRequest message.
Here, other ONU that are in the O3 state refer to the inconsistent ONU of SN in its SN and the Registration ID Request message.
The ONU that is in O4 or O5 state receives after the Registration ID Request message, parses interim ONU ID wherein, and can judge that this interim ONU ID and the ONU ID of self are inconsistent, so ignore this Registration ID Request message.
Wherein, ONU can judge this interim ONU ID and the ONU ID of self inconsistent be because: the ONU that is in O4 or O5 state has disposed ONU ID by OLT for it, and above to mention ONU ID pre-configured among interim ONUID and the OLT be different.
Step 406b, OLT receives after the Registration ID Response message, parse Registration ID wherein, and according to this pre-configured Registration ID and the corresponding relation of ONU ID, OLT issues Assign ONU ID message, carries the legal ONU ID that OLT distributes for this ONU that newly reaches the standard grade in this Assign ONU ID message.
Wherein, this legal ONU ID is different with the interim ONU ID of previous configuration.
Wherein, last pre-configured Registration ID of OLT and the corresponding relation of ONU ID present with the form that Registration ID+ONU ID shows (Registration ID, ONU ID Table), as shown in Figure 6.
In addition, if do not dispose the corresponding relation of this Registration ID and ONU ID on the OLT in advance, registration failure then, flow process finishes.
And, after issuing Assign ONU ID message, this interim ONU ID interim list item corresponding that the OLT deletion has been set up with the SN of this ONU that newly reaches the standard grade.
Step 407b, this ONU that newly reaches the standard grade receive after the Assign ONU ID message of issuing self, are self configuration ONU ID, and will self switch to the O4 state.
Step 408b, OLT issue Ranging Request message, in order to measure the balanced time delay of this ONU that newly reaches the standard grade; And the balanced time delay that will measure sends to the ONU that this is newly reached the standard grade.
Step 409b, the balanced time delay of this ONU that newly reaches the standard grade configuration self, the transmission starting point of adjustment uplink frame, and to OLT transmission Ranging Response message.
Carry the SN of this ONU that newly reaches the standard grade in this Ranging Response message.
So far, ONU succeeding in registration according to Registration ID mode.
Be the realization said method, the corresponding realization system that a kind of GPON register flow path is provided of the present invention, as shown in Figure 7, this system comprises: frame format definition unit 10, OLT20 and the ONU 30 that newly reaches the standard grade; Wherein,
Frame format definition unit 10 is used to define the frame format of Registration ID Request message and Registration IDResponse message;
OLT 20, are used to issue Serial Number Request message;
The ONU 30 that newly reaches the standard grade is used to receive after the Serial Number Request message, sends Serial Number Response message to OLT 20, carries the SN of this ONU that newly reaches the standard grade 30 in this Serial Number Response message;
OLT 20, also are used for: receive after the Serial Number Response message, parse SN wherein, and judge the local corresponding relation that whether is provided with this SN and ONU ID in advance, if then register by the SN mode; Otherwise, adopt the Registration ID Request message of frame format definition unit 10 definition and the frame format of Registration ID Response message to register by Registration ID mode.
In the process of registering by Registration ID mode,
OLT 20, are used to issue Registration ID Request message, carry OLT 20 in this Registration ID Request message and are the interim ONU ID of these ONU that newly reaches the standard grade 30 configurations and the SN of this ONU that newly reaches the standard grade 30;
The ONU 30 that newly reaches the standard grade, be used to receive after the Registration ID Request message of issuing self, send Registration ID Response message to OLT 20, carry Registration ID and the described interim ONU ID of this ONU that newly reaches the standard grade 30 among this Registration ID Response;
OLT 20, be used to receive after the Registration ID Response message, parse Registration ID wherein, and according to this pre-configured Registration ID and the corresponding relation of ONU ID, OLT 20 issues Assign ONU ID message, carries the legal ONU ID that OLT 20 distributes for this ONU that newly reaches the standard grade 30 in this Assign ONU ID message;
The ONU 30 that newly reaches the standard grade is used to receive after the Assign ONU ID message of issuing self, is self configuration ONU ID, and will self switches to the O4 state;
OLT 20, are used to issue Ranging Request message, measure the balanced time delay of this ONU that newly reaches the standard grade 30, and the balanced time delay that will measure sends to this ONU that newly reaches the standard grade 30;
The ONU 30 that newly reaches the standard grade is used to dispose the balanced time delay of self, adjusts the transmission starting point of uplink frame, and sends Ranging Response message to OLT 20.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims (10)

1, a kind of implementation method of gigabit passive optical network registration process is characterized in that, the frame format of definition sign-on ID request message and sign-on ID response message, and this method comprises:
Optical line terminal issues serial number request message;
The optical network unit of newly reaching the standard grade receives after the serial number request message, to the optical line terminal response message that transmits Sequence Number, carries the sequence number of this optical network unit of newly reaching the standard grade in this sequence number response message;
Optical line terminal is received after the sequence number response message, parses sequence number wherein, and judges the local corresponding relation that whether is provided with this sequence number and optical network unit marks in advance, if then register by the sequence number mode; Otherwise, adopt the frame format of defined sign-on ID request message and sign-on ID response message to register by the sign-on ID mode.
2, the implementation method of gigabit passive optical network registration process according to claim 1 is characterized in that,
In the frame format of described sign-on ID request message, it is the interim optical network unit marks that optical network unit distributes that the 1st byte is used for fill light road terminal;
In the frame format of described sign-on ID response message, the 4th byte to the 11 bytes are used to fill the sign-on ID of optical network unit.
3, the implementation method of gigabit passive optical network registration process according to claim 1 is characterized in that, the optical network unit of newly reaching the standard grade is before the response message that transmits Sequence Number, and described method further comprises:
Described optical network unit of newly reaching the standard grade powers on, and is in the O1 state; After optical line terminal is connected, the O2 state will self be switched to; Receive after the up Overhead Message that optical line terminal sends, adjust the running parameter of self, and will self switch to the O3 state.
According to the implementation method of claim 1 or 2 or 3 described gigabit passive optical network registration process, it is characterized in that 4, the described process of registering by the sign-on ID mode comprises:
Optical line terminal issues the sign-on ID request message, carries optical line terminal in this sign-on ID request message and is the interim optical network unit marks of this optical network unit of newly reaching the standard grade configuration and the sequence number of this optical network unit of newly reaching the standard grade;
This optical network unit of newly reaching the standard grade is received after the sign-on ID request message of issuing self, send the sign-on ID response message to optical line terminal, carry the sign-on ID and the described interim optical network unit marks of this optical network unit of newly reaching the standard grade in this sign-on ID response message;
Optical line terminal is received after the sign-on ID response message, parse sign-on ID wherein, and according to this pre-configured sign-on ID and the corresponding relation of optical network unit marks, optical line terminal issues and distributes optical network unit marks message, carries the legal optical network unit marks that optical line terminal distributes for this optical network unit of newly reaching the standard grade in this distribution optical network unit marks message;
This optical network unit of newly reaching the standard grade is received after the distribution optical network unit marks message of issuing self, is self configuration optical network unit marks, and will self switches to the O4 state;
Optical line terminal issues distance measurement request message, measures the balanced time delay of this optical network unit of newly reaching the standard grade, and the balanced time delay that will measure sends to the optical network unit that this is newly reached the standard grade;
The balanced time delay of this optical network unit of newly reaching the standard grade configuration self, the transmission starting point of adjustment uplink frame, and to optical line terminal transmission ranging response message.
5, the implementation method of bit passive optical network register flow path according to claim 4 is characterized in that, the optical network unit marks that described interim optical network unit marks and optical line terminal have disposed does not repeat.
6, the implementation method of gigabit passive optical network registration process according to claim 5 is characterized in that, after issuing the sign-on ID request message, described method further comprises:
Optical line terminal is set up the described interim optical network unit marks interim list item corresponding with the sequence number of described optical network unit of newly reaching the standard grade in this locality.
7, the implementation method of gigabit passive optical network registration process according to claim 5 is characterized in that, described method further comprises:
The optical network unit that is in the O2 state is received after the described sign-on ID request message, ignores described sign-on ID request message;
Be in the inconsistent optical network unit of sequence number that carries in O3 state and sequence number and the described sign-on ID request message and receive after the described sign-on ID request message, ignore described sign-on ID request message;
The network element that is in O4 or O5 state is received after the described sign-on ID request message, ignores described sign-on ID request message.
8, the implementation method of gigabit passive optical network registration process according to claim 6 is characterized in that, after issuing distribution optical network unit marks message, described method further comprises:
The described interim optical network unit marks interim list item corresponding that the optical line terminal deletion has been set up with the sequence number of described optical network unit of newly reaching the standard grade.
9, a kind of realization system of gigabit passive optical network registration process is characterized in that, this system comprises: frame format definition unit, optical line terminal and the optical network unit of newly reaching the standard grade; Wherein,
The frame format definition unit is used to define the frame format of sign-on ID request message and sign-on ID response message;
Optical line terminal is used to issue serial number request message;
The optical network unit of newly reaching the standard grade is used to receive after the serial number request message, to the optical line terminal response message that transmits Sequence Number, carries the sequence number of this optical network unit of newly reaching the standard grade in this sequence number response message;
Optical line terminal also is used for: receive after the sequence number response message, parse sequence number wherein, and judge the local corresponding relation that whether is provided with this sequence number and optical network unit marks in advance, if then register by the sequence number mode; Otherwise, adopt the sign-on ID request message of frame format definition unit definition and the frame format of sign-on ID response message to register by the sign-on ID mode.
10, the realization system of gigabit passive optical network registration process according to claim 9 is characterized in that, in the process of registering by the sign-on ID mode,
Described optical line terminal is used to issue the sign-on ID request message, carries optical line terminal in this sign-on ID request message and is the interim optical network unit marks of this optical network unit of newly reaching the standard grade configuration and the sequence number of this optical network unit of newly reaching the standard grade;
Described optical network unit of newly reaching the standard grade, be used to receive after the sign-on ID request message of issuing self, send the sign-on ID response message to optical line terminal, carry the sign-on ID and the described interim optical network unit marks of this optical network unit of newly reaching the standard grade in this sign-on ID response message;
Described optical line terminal, be used to receive after the sign-on ID response message, parse sign-on ID wherein, and according to this pre-configured sign-on ID and the corresponding relation of optical network unit marks, optical line terminal issues and distributes optical network unit marks message, carries the legal optical network unit marks that optical line terminal distributes for this optical network unit of newly reaching the standard grade in this distribution optical network unit marks message;
Described optical network unit of newly reaching the standard grade is used to receive after the distribution optical network unit marks message of issuing self, is self configuration optical network unit marks, and will self switches to the O4 state;
Described optical line terminal is used to issue distance measurement request message, measures the balanced time delay of this optical network unit of newly reaching the standard grade, and the balanced time delay that will measure sends to the optical network unit that this is newly reached the standard grade;
Described optical network unit of newly reaching the standard grade is used to dispose the balanced time delay of self, adjusts the transmission starting point of uplink frame, and sends ranging response message to optical line terminal.
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