CN106488346B - A kind of passive optical network compatible apparatus and its implementation and optical line terminal - Google Patents
A kind of passive optical network compatible apparatus and its implementation and optical line terminal Download PDFInfo
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Abstract
The invention discloses a kind of passive optical network compatible apparatus, the upstream data received is restored by two kinds of standards respectively by two uplink burst clocks and data recovery unit, and the upstream data of recovery is separately sent to corresponding uplink demarcation, descrambling and forward error correction (FEC) decoding unit；It is delimited again by two uplinks, descrambling and FEC decoding unit respectively delimit the upstream data for the recovery being respectively received by two kinds of standards, after delimiting successfully, the GTC frame that processing is completed is sent to Gigabit Passive Optical Network Transmission Convergence (GTC) solution frame unit；Finally different processing units is sent to by the data that GTC solution frame unit obtains frame decoding to handle.The present invention further simultaneously discloses a kind of implementation method of passive optical network compatibility, optical line terminal.
Description
Technical field
The present invention relates to passive optical network (Passive Optical Network, PON) system transmission technologys, especially relate to
And a kind of passive optical network compatible apparatus and its implementation and optical line terminal (Optical Line Terminal, OLT)
Background technique
XGPON (X Gigabit-Capable Passive Optical Network, XGPON) is from 1000 M passive light
The PON network standard of new generation of network (Gigabit-Capable Passive Optical Network, GPON) evolution,
XGPON is divided into million passive optical network of asymmetric ten thousand and symmetrical 10,000,000,000 passive optical network again, wherein million passive optical network of asymmetric ten thousand
It can be described as XGPON1, symmetrical 10,000,000,000 passive optical network can be described as XGPON2.The rate that XGPON1 is supported are as follows: uplink
2.48832Gbps, downlink 9.95328Gbps；The rate that XGPON2 is supported are as follows: uplink 9.95328Gbps, downlink
9.95328Gbps。
Protocol suite ITU-T 987.x about XGPON1 is passed through in June, 2010, the OLT device and light of XGPON1
Network unit (Optical Network Unit, ONU) equipment is introduced to the market extensively therewith, such as: voice calling service, view
Frequency talk business, VOD service, IPTV etc., requirement of the user to network speed is higher and higher, especially fiber entering household
(Fiber To The Home's, FTTH) is universal, has more pushed the development of XGPON network.Broadband broadcast from 1985 with
Come, average 5~6 years time, network bandwidth just requires double.
It is referred to as within 2013 the XGPON first year, the whole world has operator's release to the market demand of XGPON equipment, China successively
Telecommunications is even more to determine to carry out XGPON equipment scheme opening of bid in current year.Major telecommunication apparatus supplier release successively OLT device and
ONU equipment, chip solution etc..With being widely popularized of mobile network's 3G, 4G network, from the arrival of Media Era, user
Requirement to broadband is growing, and the especially data volume of the uplink service growth that will will appear explosion type, this will will push
XGPON1 is to XGPON2 transition.Within significant period of time from now on, two kinds of ONU equipments of XGPON1 and XGPON2 will be coexisted,
And existing OLT can not be compatible with two kinds of equipment simultaneously, how adapt to both ONU equipments, compatible XGPON1 and XGPON2 makes into
This is lower, and e-learning quality is smoother, this will be operator and equipment production firm problem to be solved.
Summary of the invention
In view of this, an embodiment of the present invention is intended to provide a kind of passive optical network compatible apparatus and its implementation and light
Road terminal can be compatible with two kinds of passive optical network of XGPON1 and XGPON2, to enable passive optical network smooth evolution.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
The embodiment of the invention provides a kind of passive optical network compatible apparatus, comprising: the first uplink burst clock and data
Recovery unit, the second uplink burst clock and data recovery unit, the first uplink delimits, descrambling and FEC decoding unit, on second
Row is delimited, descrambling and FEC decoding unit, upload control unit and GTC solve frame unit；Wherein,
The first uplink burst clock and data recovery unit and the second uplink burst clock and data recovery unit are used
Restore optical network unit ONU upstream data in various criterion is respectively adopted, and the upstream data of recovery is separately sent to first
Uplink demarcation, descrambling and FEC decoding unit and the demarcation of the second uplink, descrambling and FEC decoding unit；
The first uplink demarcation, descrambling and FEC decoding unit and second uplink are delimited, descrambling and FEC decode list
Member, for the upstream data for the recovery that various criterion processing receives to be respectively adopted, and after delimiting successfully, Xiang Suoshu uplink control
Unit processed, which is sent, delimits successful information, sends GTC frame to GTC solution frame unit；
The upload control unit controls the first uplink demarcation, descrambling for delimiting successful information based on the received
It is delimited with FEC decoding unit or second uplink, descrambling and FEC decoding unit carry out data processing；
The GTC solves frame unit, for carrying out frame decoding to received GTC frame, the data after frame decoding is sent to different
Processing unit is handled.
In above scheme, the first uplink demarcation, descrambling and FEC decoding unit and the demarcation of the second uplink, descrambling and FEC
Decoding unit is specifically used for:
According to the control of the upload control unit, descrambling and FEC are carried out to the upstream data of the recovery received respectively
Decoding processing, and the GTC frame that processing is completed is sent to GTC solution frame unit.
In above scheme, the upload control unit is specifically used for:
According to the demarcation successful information received, determines and delimit successful uplink demarcation, descrambling and FEC decoding unit
And ONU rate information；
It controls the successful uplink demarcation of the demarcation, descrambling and FEC decoding unit is descrambled, FEC decoding is handled；
If receiving two demarcation successful informations simultaneously, one of delimit is handled according to pre-set priority and is successfully believed
Breath is abandoned handling another demarcation successful information；
The ONU rate information is sent to GTC solution frame unit.
In above scheme, the GTC solves frame unit, is specifically used for:
Indicate that content to GTC frame frame decoding, is distinguished physical layer operations and managed and maintained according to the frame head of the GTC frame received
PLOAM message, Dynamic Bandwidth Allocation cells D BRu message, business container TCONT content；
The ONU rate information received is added in PLOAM information；
PLOAM message, DBRu message, TCONT content are sent to different processing units and handled.
In above scheme, described device further includes that application management software unit is specifically used for:
Receive the PLOAM information that the GTC solution frame unit is sent；
According to the sequence number SN for the sequence number response SN-Response for including in the PLOAM information and the ONU rate
Information sends corresponding optical network unit identity number ONUID to ONU.
In above scheme, the first uplink burst clock and data recovery unit and the first uplink delimited, descrambling and FEC
Decoding unit handles data using the first standard；
The second uplink burst clock and data recovery unit and the second uplink bounding elements, descrambling and FEC decoding are single
Member handles data using the second standard；
First standard is million passive optical network XGPON1 standard of asymmetric ten thousand；
Second standard is symmetrical 10,000,000,000 passive optical network XGPON2 standard.
The embodiment of the invention also provides a kind of compatible implementation methods of passive optical network, comprising:
Various criterion is respectively adopted and restores ONU upstream data；
The upstream data of recovery that various criterion processing receives is respectively adopted, and after delimiting successfully, using demarcation at
Standard used by function carries out descrambling and FEC decoding, sends the GTC frame that processing is completed；
Frame decoding is carried out to received GTC frame, the data after frame decoding are sent to different processing units and are handled.
It is described that frame decoding is carried out to received GTC frame in above scheme, the data after frame decoding are sent to different processing lists
Member carries out processing
Indicate content to GTC frame frame decoding according to the frame head of the GTC frame received, distinguish PLOAM message, DBRu message,
TCONT content；
The PLOAM message is added in the corresponding ONU rate information of standard used by delimiting successfully；
PLOAM message, DBRu message, TCONT content are sent to different processing units and handled.
In above scheme, the method also includes:
According to the sequence number SN for the sequence number response SN-Response for including in the PLOAM information and the ONU rate
Information sends corresponding optical network unit identity number ONUID to ONU.
The embodiment of the invention also provides a kind of optical line terminal OLTs, comprising: optical module, GPON packaged type GEM frame decoding
Unit, Bandwidth Dynamic Allocation DBA unit, uplink recombination and scheduling processing unit, downlink data part；The OLT further include: on
Passive optical network compatible apparatus described in face described in any one.
Passive optical network compatible apparatus and its implementation and optical line terminal provided by the embodiment of the present invention, by two
Uplink burst clock and data recovery unit restore the upstream data received by two kinds of standards respectively, and by the upper line number of recovery
According to being separately sent to, corresponding uplink is delimited, descrambling and forward error correction (Forward Error Correction, FEC) are translated
Code unit；It is delimited again by two uplinks, descrambling and FEC decoding unit are respectively by two kinds of standards to the upper of the recovery being respectively received
Row data are delimited, after delimiting successfully, to Gigabit Passive Optical Network Transmission Convergence (GPON Transmission
Convergence, GTC) solve the GTC frame that frame unit sends processing completion；The data for finally being obtained frame decoding by GTC solution frame unit
Different processing units is sent to be handled；It can make a device as a result, while meet two kinds of rates of XGPON1 and XGPON2
The transmission requirement of data can achieve the purpose that two kinds of passive optical network of compatible XGPON1 and XGPON2, to make passive optical network
Evolution is smoother, keeps cost lower.
Detailed description of the invention
Fig. 1 is a kind of composed structure schematic diagram of passive optical network compatible apparatus of the embodiment of the present invention；
Fig. 2 is a kind of flow diagram of the compatible implementation method of passive optical network of the embodiment of the present invention.
Specific embodiment
In the embodiment of the present invention, by the first uplink burst clock and data recovery unit and the second uplink burst clock and number
Restore the upstream data received by two kinds of standards respectively according to recovery unit, and the upstream data of recovery is separately sent to first
Uplink demarcation, descrambling and FEC decoding unit and the demarcation of the second uplink, descrambling and FEC decoding unit；First uplink is delimited, is descrambled
With FEC decoding unit and second uplink demarcation, descrambling and the recovery by two kinds of standards to receiving respectively of FEC decoding unit
Upstream data delimited, after delimiting successfully, to GTC solution frame unit send GTC frame；Frame decoding is obtained by GTC solution frame unit
Data be sent to different processing units and handled.
Below with reference to embodiment, the present invention is further described in more detail.
Passive optical network compatible apparatus provided in an embodiment of the present invention, as shown in Figure 1, comprising:
First uplink burst clock and data recovery unit 11, the second uplink burst clock and data recovery unit 12, the
The demarcation of one uplink, descrambling and FEC decoding unit 13, the demarcation of the second uplink, descrambling and FEC decoding unit 14, upload control unit
15 and GTC solves frame unit 16；Wherein,
The first uplink burst clock and data recovery unit 11 and the second uplink burst clock and data recovery unit
12, restore ONU upstream data for various criterion to be respectively adopted, and the upstream data of recovery is separately sent to the first uplink and is determined
Boundary, descrambling and FEC decoding unit 13 and the demarcation of the second uplink, descrambling and FEC decoding unit 14；
Specifically, the first uplink burst clock and data recovery unit 11 restore ONU upstream data using the first standard, and
The demarcation of the first uplink, descrambling and FEC decoding unit 13 are sent by the upstream data of recovery；Second uplink burst clock and data
Recovery unit 12 restores ONU upstream data using the second standard, and sends the demarcation of the second uplink, solution for the upstream data of recovery
Disturb with FEC decoding unit 14, first standard be XGPON1 standard, second standard be XGPON2 standard.
The first uplink demarcation, descrambling and FEC decoding unit 13 and second uplink are delimited, descrambling and FEC decode
Unit 14 carries out data processing to the upstream data of the recovery received for various criterion to be respectively adopted；And it is delimiting successfully
Afterwards, Xiang Suoshu upload control unit 15, which is sent, delimits successful information, sends GTC frame to GTC solution frame unit 16；
Specifically, first uplink is delimited, the recovery of descrambling and FEC decoding unit 13 using the first standard to receiving
Upstream data delimited, if delimit successfully, to the upload control unit 15 send delimit successful information；Described
Two uplinks are delimited, descrambling and FEC decoding unit 14 delimit the upstream data of the recovery received using the second standard, such as
Fruit is delimited successfully, then sends to the upload control unit 15 and delimit successful information；Wherein, first standard is XGPON1 mark
Standard, second standard are XGPON2 standard.
Later, according to the control of the upload control unit 15, the first uplink demarcation, descrambling and FEC decoding unit
13 and second uplink delimit, descrambling and FEC decoding unit 14 respectively to the upstream data of the recovery received carry out descrambling and FEC
Decoding processing, and the GTC frame that processing is completed is sent to GTC solution frame unit 16；
The upload control unit 15 controls the first uplink demarcation, solution for delimiting successful information based on the received
It disturbs and carries out data processing with FEC decoding unit 13 or second uplink demarcation, descrambling and FEC decoding unit 14；
Specifically, the upload control unit 15 receive the first uplink delimit, descrambling and FEC decoding unit 13 and/or
After the demarcation successful information that second uplink is delimited, descrambling and FEC decoding unit 14 are sent, it is which that first successful information is delimited in judgement
What uplink demarcation, descrambling and FEC decoding unit were sent, if receiving two demarcation successful informations simultaneously, basis is default preferentially
Grade processing is one of to delimit successful information, abandons handling another demarcation successful information, determines to send and delimit successful information
Uplink delimit, after descrambling and FEC decoding unit, control delimits that successful uplink is delimited, descrambling and FEC decoding unit are solved
It disturbs, FEC decoding processing；
Further, delimited according to first uplink, descrambling and FEC decoding unit 13 use the first standard, described the
Two uplinks are delimited, descrambling and FEC decoding unit 14 are using the principle of the second standard, and the upload control unit 15 is by determining hair
It send the uplink for delimiting successful information to delimit, descramble and FEC decoding unit, can learn uplink demarcation, descrambling and FEC decoding unit
Accepted standard and the corresponding ONU uplink data rate information, that is, ONU rate information of the standard, will acquire ONU rate information
It is sent to GTC solution frame unit 16.
The GTC solves frame unit 16, and for carrying out frame decoding to received GTC frame, the data after frame decoding are sent to difference
Processing unit handled；
Specifically, the GTC solution frame unit 16 indicates content to GTC frame frame decoding, area according to the frame head of the GTC frame received
It separates physical layer operations and manages and maintains (Physical Layer Operations And Maintenance, PLOAM) and disappear
Breath, Dynamic Bandwidth Allocation cells D BRu (Dynamic Bandwidth AllocationUnit, DBRu) message, business container
(Transmission Containers, TCONT) content, and the ONU rate information received is added to PLOAM letter
In breath, TCONT content, PLOAM message, DBRu message are sent to different processing units and handled.
Passive optical network compatible apparatus provided in an embodiment of the present invention further include: application management software unit 17, for connecing
The PLOAM information that the GTC solution frame unit 16 is sent is received, is responded according to the sequence number for including in the PLOAM information
The sequence number SN and the ONU rate information of (Serial Number-Response, SN-Response), pass through downlink data
Send corresponding optical network unit identity number ONUID to ONU to distinguish different types of ONU, to realize to XGPON1 and
The management of XGPON2 two types ONU.
Specifically, ONU receives serial number request (Serial Number-Request, SN- in ONU register flow path
Request SN-Response can be sent after), SN-Response data pass through the first uplink burst clock and data recovery unit
11 and second uplink burst clock and data recovery unit 12 carry out data recovery, it is fixed that the data of recovery are output to the first uplink
Boundary, descrambling and FEC decoding unit 13 and the demarcation of the second uplink, descrambling and FEC decoding unit 14；First uplink delimit, descrambling and
FEC decoding unit 13 and the second uplink are delimited, descrambling and FEC decoding unit 14 are delimited first, are such as delimited successfully, then upwards
Row control unit 15, which is sent, delimits successful information, since the demarcation of the first uplink, descrambling and FEC decoding unit 13 and the second uplink are fixed
Boundary, descrambling and FEC decoding unit 14 use different standards, so the demarcation of only one uplink, descrambling and FEC decoding unit energy
It is enough successfully to delimit；Upload control unit 15 is learnt according to demarcation successful information delimits successfully used standard, and controls and determine
The successful uplink in boundary is delimited, descrambling and FEC decoding unit carry out descrambling and FEC decoding processing, is formed GTC frame and is sent to GTC solution
Frame unit 16；Accepted standard and the corresponding ONU uplink data rate information, that is, ONU rate of the standard will be successfully delimited simultaneously
Information is sent to GTC solution frame unit 16, and GTC solves frame unit 16 and indicates content to data flow according to the frame head of the GTC frame received
Frame decoding distinguishes PLOAM message, DBRu message, TCONT content, and the ONU rate information received is added to PLOAM
In information, and PLOAM information is sent to application management software unit 17；Application management software unit 17 is according to PLOAM information
In SN-Response SN and ONU rate information, awarded by downstream data flow to send the ONU of the SN-Response and its
The corresponding ONUID of rate can be managed subsequent according to the different types of ONU of ONUID differentiation.
Based on above-mentioned passive optical network compatible apparatus, the compatible realization side of also a kind of passive optical network of the embodiment of the present invention
Method, as shown in Fig. 2, the method includes following steps:
Step 201: various criterion is respectively adopted and restores ONU upstream data；
Step 202: the upstream data that various criterion delimits the recovery received is respectively adopted, and after delimiting successfully, adopts
The standard used by delimiting successfully carries out descrambling and FEC decoding, and sends the GTC frame that processing is completed；
The ONU upstream data received is restored specifically, two kinds of standards are respectively adopted, to the data flow point of recovery
Not Cai Yong the identical standard of previous step delimited, if delimited successfully, the data flow of recovery is carried out using same standard
Descrambling and FEC decoding processing, the data for handling completion form GTC frame, wherein two kinds of standards are that XGPON1 standard and XGPON2 are marked
It is quasi-.
Step 203: frame decoding being carried out to received GTC frame, the data after frame decoding are sent to different processing units and are carried out
Processing.
Specifically, indicate content to GTC frame frame decoding according to the frame head of the GTC frame received, distinguish PLOAM message,
DBRu message, TCONT content；Described in the corresponding ONU rate information of standard used by delimiting in step 202 successfully is added
PLOAM message；PLOAM message, DBRu message, TCONT content are sent to different processing units and handled；
Further, the method also includes: according to the SN for the SN-Response for including in the PLOAM information and institute
ONU rate information is stated, sends corresponding optical network unit identity number ONUID to ONU.
Specifically, ONU can send SN-Response after receiving SN-Request, using two in ONU register flow path
Kind standard restores SN-Response data, and the identical standard of previous step is respectively adopted to the data flow of recovery and determines
Boundary still carries out descrambling using same standard to the data flow of recovery and FEC decoding is handled, handled if delimited successfully
At data form GTC frame, determine ONU rate information according to successfully used standard is delimited；According to the GTC frame received
Frame head indicates that content distinguishes PLOAM message, DBRu message, TCONT content to data flow frame decoding, and described in receiving
ONU rate information is added in PLOAM information, according to SN the and ONU rate information of the SN-Response in PLOAM information, leads to
Downstream data flow is crossed to award to send the ONU of SN-Response ONUID corresponding to its rate, it is subsequent can be according to the area ONUID
Different types of ONU is divided to manage, wherein described two standards are XGPON1 standard and XGPON2 standard.
The compatible optical line terminal of also a kind of passive optical network of the embodiment of the present invention, the compatible light of the passive optical network
Line terminal not only includes: optical module, GPON packaged type (G-PON Encapsulation Mode, GEM) solution frame unit, band
Width dynamically distributes (Dynamic Bandwidth Allocation, DBA) unit, uplink recombination and scheduling processing unit, downlink
Data portion further includes passive optical network compatible apparatus, as shown in Figure 1, described device includes:
First uplink burst clock and data recovery unit 11, the second uplink burst clock and data recovery unit 12,
The demarcation of one uplink, descrambling and FEC decoding unit 13, the demarcation of the second uplink, descrambling and FEC decoding unit 14, upload control unit
15 and GTC solves frame unit 16；Wherein,
The first uplink burst clock and data recovery unit 11 and the second uplink burst clock and data recovery unit
12, restore the data of ONU uplink for various criterion to be respectively adopted, and the upstream data of recovery is separately sent to the first uplink
Demarcation, descrambling and FEC decoding unit 13 and the demarcation of the second uplink, descrambling and FEC decoding unit 14；
Specifically, the optical module carries out photoelectric conversion, the uplink optical signal of ONU is converted into electric signal, will convert into
ONU upstream data be sent to the first uplink burst clock and data recovery unit and the second uplink burst clock and data and restore
Unit, the first uplink burst clock and data recovery unit 11 restore ONU upstream data using the first standard, and by the upper of recovery
Row data are sent to the demarcation of the first uplink, descrambling and FEC decoding unit 13；Second uplink burst clock and data recovery unit 12
ONU upstream data is restored using the second standard, and sends the demarcation of the second uplink, descrambling and FEC for the upstream data of recovery and translates
Code unit 14, first standard are XGPON1 standard, and second standard is XGPON2 standard.
The first uplink demarcation, descrambling and FEC decoding unit 13 and second uplink are delimited, descrambling and FEC decode
Unit 14 carries out data processing to the upstream data of the recovery received for various criterion to be respectively adopted；And it is delimiting successfully
Afterwards, Xiang Suoshu upload control unit 15, which is sent, delimits successful information, sends GTC frame to GTC solution frame unit 16；
Specifically, first uplink is delimited, the recovery of descrambling and FEC decoding unit 13 using the first standard to receiving
Upstream data delimited, if delimit successfully, to the upload control unit 15 send delimit successful information；Described
Two uplinks are delimited, descrambling and FEC decoding unit 14 delimit the upstream data of the recovery received using the second standard, such as
Fruit is delimited successfully, then sends to the upload control unit 15 and delimit successful information；Wherein, first standard is XGPON1 mark
Standard, second standard are XGPON2 standard；
Later, according to the control of the upload control unit 15, the first uplink demarcation, descrambling and FEC decoding unit
13 and second uplink delimit, descrambling and FEC decoding unit 14 respectively to the upstream data of the recovery received carry out descrambling and FEC
Decoding processing, and the GTC frame that processing is completed is sent to GTC solution frame unit 16.
The upload control unit 15 controls the first uplink demarcation, solution for delimiting successful information based on the received
It disturbs and carries out data processing with FEC decoding unit 13 or second uplink demarcation, descrambling and FEC decoding unit 14；
Specifically, the upload control unit 15 receive the first uplink delimit, descrambling and FEC decoding unit 13 and/or
After the demarcation successful information that second uplink is delimited, descrambling and FEC decoding unit 14 are sent, it is which that first successful information is delimited in judgement
What uplink demarcation, descrambling and FEC decoding unit were sent, if receiving two demarcation successful informations simultaneously, basis is default preferentially
Grade processing is one of to delimit successful information, abandons handling another demarcation successful information, determines to send and delimit successful information
Uplink delimit, after descrambling and FEC decoding unit, control delimits that successful uplink is delimited, descrambling and FEC decoding unit are solved
It disturbs, FEC decoding processing；
Further, delimited according to first uplink, descrambling and FEC decoding unit 13 use the first standard, described the
Two uplinks are delimited, descrambling and FEC decoding unit 14 are using the principle of the second standard, and the upload control unit 15 is by determining hair
It send the uplink for delimiting successful information to delimit, descramble and FEC decoding unit, can learn uplink demarcation, descrambling and FEC decoding unit
Accepted standard and the corresponding ONU uplink data rate information, that is, ONU rate information of the standard, will acquire ONU rate information
It is sent to GTC solution frame unit 16.
Upload control unit 15 is responsible for the conversion DBA unit to the processing entry of uplink, carries out control pipe to each unit
Reason；
The GTC solves frame unit 16, and for carrying out frame decoding to received GTC frame, the data after frame decoding are sent to difference
Processing unit handled；
Specifically, the GTC solution frame unit 16 indicates content to GTC frame frame decoding, area according to the frame head of the GTC frame received
PLOAM message, DBRu message, TCONT content are separated, and the ONU rate information received is added to PLOAM information
In, TCONT content, PLOAM message, DBRu message are sent to different processing units and handled by GTC solution frame unit, GTC
It solves frame unit and sends TCONT content to GEM solution frame unit, the GEM solution frame unit will parse user data transmission
To uplink recombination and scheduling processing unit.
Passive optical network compatible apparatus provided in an embodiment of the present invention further include: application management software unit 17, for connecing
The PLOAM information that the GTC solution frame unit 16 is sent is received, according to the SN-Response for including in the PLOAM information
SN and the ONU rate information send corresponding ONUID to distinguish different types of ONU, to realize to ONU by downlink data
Management to XGPON1 and XGPON2 two types ONU.
Specifically, ONU can send SN-Response, SN- after receiving SN-Request in ONU register flow path
Response data are restored by the first uplink burst clock and data recovery unit 11 and the second uplink burst clock and data
Unit 12 carries out data recovery, and the data of recovery are output to the demarcation of the first uplink, descrambling and FEC decoding unit 13 and the second uplink
Demarcation, descrambling and FEC decoding unit 14；The demarcation of first uplink, descrambling and FEC decoding unit 13 and the second uplink are delimited, are descrambled
It is delimited with FEC decoding unit 14, is such as delimited successfully first, then sent to uplink control unit 15 and delimit successful information, by
In the demarcation of the first uplink, descrambling and FEC decoding unit 13 and the second uplink are delimited, descrambling and FEC decoding unit 14 are using difference
Standard, so only one uplink delimit, descrambling and FEC decoding unit can successfully delimit；15 basis of upload control unit
Demarcation successful information, which is learnt, delimits successfully used standard, and controls the successful uplink demarcation of demarcation, descrambling and FEC and decode
Unit carries out descrambling and FEC decoding processing, forms GTC frame and is sent to GTC solution frame unit 16；The mark of use will be successfully delimited simultaneously
The corresponding ONU uplink data rate information, that is, ONU rate information of quasi- and described standard is sent to GTC solution frame unit 16, GTC frame decoding
Unit 16 indicates content to data flow frame decoding according to the frame head of the GTC frame received, distinguish PLOAM message, DBRu message,
The ONU rate information received is added in PLOAM information, and PLOAM information is sent to application by TCONT content
Management software unit 17；Application management software unit 17 is believed according to SN the and ONU rate of the SN-Response in PLOAM information
Breath, is awarded by downstream data flow to send the ONU of SN-Response ONUID corresponding to its rate, it is subsequent can basis
ONUID distinguishes different types of ONU to manage.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention, it is all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention, should be included in protection of the invention
Within the scope of.
Claims (10)
1. a kind of passive optical network compatible apparatus, which is characterized in that described device includes: that the first uplink burst clock and data are extensive
Multiple unit, the second uplink burst clock and data recovery unit, the demarcation of the first uplink, descrambling and FEC decoding unit, the second uplink
It delimits, descrambling and FEC decoding unit, upload control unit and GTC solve frame unit；Wherein,
The first uplink burst clock and data recovery unit and the second uplink burst clock and data recovery unit, for dividing
Not Cai Yong various criterion restore optical network unit ONU upstream data, and the upstream data of recovery is separately sent to the first uplink
Demarcation, descrambling and FEC decoding unit and the demarcation of the second uplink, descrambling and FEC decoding unit；
The first uplink demarcation, descrambling and FEC decoding unit and second uplink demarcation, descrambling and FEC decoding unit, are used
In the upstream data that the recovery that various criterion processing receives is respectively adopted, and after delimiting successfully, Xiang Suoshu upload control list
Member, which is sent, delimits successful information, sends GTC frame to GTC solution frame unit；
The upload control unit controls the first uplink demarcation, descrambling and FEC for delimiting successful information based on the received
Decoding unit or second uplink are delimited, descrambling and FEC decoding unit carry out data processing；
The GTC solves frame unit, and for carrying out frame decoding to received GTC frame, the data after frame decoding are sent to different processing
Unit is handled.
2. the apparatus according to claim 1, which is characterized in that first uplink delimits, descrambling and FEC decoding unit and
The demarcation of second uplink, descrambling and FEC decoding unit, are specifically used for:
According to the control of the upload control unit, descrambling is carried out to the upstream data of the recovery received respectively and FEC is decoded
Processing, and the GTC frame that processing is completed is sent to GTC solution frame unit.
3. the apparatus according to claim 1, which is characterized in that the upload control unit is specifically used for:
According to the demarcation successful information received, determine delimit successful uplink delimit, descrambling and FEC decoding unit and
ONU rate information；
It controls the successful uplink demarcation of the demarcation, descrambling and FEC decoding unit is descrambled, FEC decoding is handled；
If receiving two demarcation successful informations simultaneously, one of demarcation successful information is handled according to pre-set priority,
It abandons handling another demarcation successful information；
The ONU rate information is sent to GTC solution frame unit.
4. the apparatus according to claim 1, which is characterized in that the GTC solves frame unit, is specifically used for:
Indicate that content to GTC frame frame decoding, is distinguished physical layer operations and managed and maintained according to the frame head of the GTC frame received
PLOAM message, Dynamic Bandwidth Allocation cells D BRu message, business container TCONT content；
The ONU rate information received is added in PLOAM message；
PLOAM message, DBRu message, TCONT content are sent to different processing units and handled.
5. the apparatus according to claim 1, which is characterized in that described device further includes application management software unit, specifically
For:
Receive the PLOAM message that the GTC solution frame unit is sent；
Sequence number SN and the ONU rate information that SN-Response is responded according to the sequence number for including in the PLOAM message, to
ONU sends corresponding optical network unit identity number ONUID.
6. the apparatus according to claim 1, which is characterized in that
The first uplink burst clock and data recovery unit and the first uplink delimit, descrambling and FEC decoding unit are using the
One standard handles data；
The second uplink burst clock and data recovery unit and the second uplink bounding elements, descrambling and FEC decoding unit are adopted
Data are handled with the second standard；
First standard is million passive optical network XGPON1 standard of asymmetric ten thousand；
Second standard is symmetrical 10,000,000,000 passive optical network XGPON2 standard.
7. a kind of compatible implementation method of passive optical network, which is characterized in that the described method includes:
Various criterion is respectively adopted and restores ONU upstream data；
The upstream data of recovery that various criterion processing receives is respectively adopted, and after delimiting successfully, using delimiting successfully institute
Accepted standard carries out descrambling and FEC decoding, sends the GTC frame that processing is completed；
Frame decoding is carried out to received GTC frame, the data after frame decoding are sent to different processing units and are handled.
8. the method according to the description of claim 7 is characterized in that described carry out frame decoding to received GTC frame, after frame decoding
Data are sent to different processing units and handle
Indicate that content to GTC frame frame decoding, distinguishes PLOAM message, DBRu message, TCONT according to the frame head of the GTC frame received
Content；
The PLOAM message is added in the corresponding ONU rate information of standard used by delimiting successfully；
PLOAM message, DBRu message, TCONT content are sent to different processing units and handled.
9. method according to claim 7 or 8, which is characterized in that the method also includes:
According to sequence number SN and the ONU rate information for the sequence number response SN-Response for including in PLOAM message, sent out to ONU
Send corresponding optical network unit identity number ONUID.
10. a kind of optical line terminal OLT, comprising: optical module, GPON packaged type GEM solve frame unit, Bandwidth Dynamic Allocation DBA
Unit, uplink recombination and scheduling processing unit, downlink data part；It is characterized in that, the OLT further include: claim 1 to
6 described in any item passive optical network compatible apparatus.
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| CN201510535317.XA CN106488346B (en) | 2015-08-27 | 2015-08-27 | A kind of passive optical network compatible apparatus and its implementation and optical line terminal |
| PCT/CN2016/082187 WO2017032077A1 (en) | 2015-08-27 | 2016-05-16 | Device and method for providing compatibility with passive optical networks, optical line terminal, and storage medium |
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| CN101552772A (en) * | 2008-04-02 | 2009-10-07 | 华为技术有限公司 | Method, devices and system for optical network data processing |
| CN101552932A (en) * | 2008-04-01 | 2009-10-07 | 华为技术有限公司 | Method, devices and system for transmitting and processing optical-fiber network |
| CN101783710A (en) * | 2009-01-15 | 2010-07-21 | 中兴通讯股份有限公司 | Wavelength division multiplexer compatible with two passive optical networks |
| CN102595258A (en) * | 2012-02-15 | 2012-07-18 | 中兴通讯股份有限公司 | Method and optical network unit equipment compatible with different passive optical network protocols |
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| US8245095B2 (en) * | 2008-04-30 | 2012-08-14 | Futurewei Technologies, Inc. | Upgraded codeword lock state machine |
| CN103051984B (en) * | 2011-10-14 | 2017-09-12 | 中兴通讯股份有限公司 | Optical signal transmission method and device |
| KR20130093788A (en) * | 2011-12-30 | 2013-08-23 | 한국전자통신연구원 | Converged pon for tdma-pon service based on ofdma-pon |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552932A (en) * | 2008-04-01 | 2009-10-07 | 华为技术有限公司 | Method, devices and system for transmitting and processing optical-fiber network |
| CN101552772A (en) * | 2008-04-02 | 2009-10-07 | 华为技术有限公司 | Method, devices and system for optical network data processing |
| CN101783710A (en) * | 2009-01-15 | 2010-07-21 | 中兴通讯股份有限公司 | Wavelength division multiplexer compatible with two passive optical networks |
| CN102595258A (en) * | 2012-02-15 | 2012-07-18 | 中兴通讯股份有限公司 | Method and optical network unit equipment compatible with different passive optical network protocols |
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