CN104243092B - Optical network unit ONU, optical line terminal OLT and information transferring method - Google Patents
Optical network unit ONU, optical line terminal OLT and information transferring method Download PDFInfo
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- CN104243092B CN104243092B CN201310254374.1A CN201310254374A CN104243092B CN 104243092 B CN104243092 B CN 104243092B CN 201310254374 A CN201310254374 A CN 201310254374A CN 104243092 B CN104243092 B CN 104243092B
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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
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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
- H04Q2011/0086—Network resource allocation, dimensioning or optimisation
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Abstract
The invention discloses a kind of optical network unit ONU, optical line terminal OLT and information transferring method, belong to network communication field.The optical network unit ONU includes：User side interface unit and passive optical network PON interface unit.PON interface units, for receiving the first PON physical layer frames from optical line terminal OLT, remove the first PON physical layer frames frame head and the first PON media access control MAC frame frame heads in the first PON physical layer frames, obtain the first frame；First user side interface unit, the second frame for being got for the first user side interface unit encapsulates the first non-PON physical layer frames frame head, the first non-PON physical layer frames are obtained, and the first non-PON physical layer frames are sent to user equipment, wherein the second frame is the first frame or the frame obtained based on the first frame.The present invention is in data transmission procedure, it is not necessary to does QoS scheduling, avoids the queue scheduling memory of costliness, reduce cost.
Description
Technical field
The present invention relates to network communication technology field, more particularly to a kind of optical network unit ONU, optical line terminal OLT with
And information transferring method.
Background technology
Please refer to Fig.1, Fig. 1 shows existing Optical Access Network（It is referred to as FTTx）Major networks configuration diagram and association
Discuss stack schematic diagram.Optical Access Network is by optical line terminal（Optical Line Termination, OLT）, optical network unit/light
The network terminal（Optical Network Unit/Optical Network Terminal, ONU/ONT）Deng composition.Optical fiber connects
Generally use optical fiber is attached between the optical network unit ONU and optical line terminal OLT of networking, with optical network unit ONU institute
Position it is different, Optical Access Network is divided into fiber-to-the-home（Fibre To The Home, FTTH）, optical fiber to distributing point
（Fibre to Drop/Distribution Point, FTTDp）, fiber to the floor（Fibre To The Building, FTTB）
With Fiber To The Curb（Fibre To The Curb, FTTC）Etc. several situations.Optical Access Network mainly uses passive optical network
（Passive Optical Network, PON）Technology is realized.Passive optical network includes ethernet passive optical network
（Ethernet Passive Optical Network, EPON）And gigabit passive optical network（Gigabit Passive
Optical Network, GPON）.
Optical network unit ONU can also pass through Digital Subscriber Line（Digital Subscriber Line, DSL）, You Xian electricity
Mode and the user equipment such as television cable, ethernet line, power line, wireless（Customer Premises Equipment, CPE）
It is attached.Specifically, if being connected between ONU and user equipment using Digital Subscriber Line, optical network unit embedded digital is used
Family line access multiplexer（DSL Access Multiplexer, DSLAM）, user equipment pass through Digital Subscriber Line Modem (modulation
Demodulator) interconnected with Digital Subscriber Line Access Multiplexer, Digital Subscriber Line Modem can also be built in user equipment.For ONU
It is connected between user equipment according to cable of cable TV, then cable modem end system built in ONU（Cable
Modem Termination System, CMTS）, user equipment passes through cable modem（Cable Modem, CM）With electricity
Cable modem end equipment interconnects, and Cable Modem can also be built in user equipment.For between ONU and user equipment
Connected according to ethernet line, then interchanger built in ONU（Switch）, user equipment passes through ethernet user's equipment（Or it is
Ethernet terminal）Interconnected with interchanger, ethernet user's equipment can also be built in user equipment.For ONU and user equipment
Between according to power line connect, then interchanger power line network side modem, user equipment pass through power line built in ONU
User side modem（Or it is power line terminal）Interconnected with power line network side modem, power line user side tune
Modulator-demodulator can also be built in user equipment.For being connected between ONU and user equipment according to wireless technology, then in ONU
Put base station/access point（Base Station/Access Point, BS/AP）, user equipment passes through wireless user equipment（Or
For wireless terminal）Interconnected with base station/access point, wireless user equipment can also be built in user equipment.
Optical Access Network using fiber-to-the-home is following developing direction, but needs other to each household to be laid with light again
Fibre, cost are very high.Therefore, operator can be by the way of optical fiber to distributing point within very long a period of time, i.e. fiber-to-the-home
Front yard residence outer wall, the final stage registered one's residence still utilize the copper cable registered one's residence（Such as twisted pair telephone, cable of cable TV, electric power
Line, ethernet line etc.）Or wave point connection.Using the optical network unit ONU number in the Optical Access Network of optical fiber to distributing point
Amount is relatively more, and optical line terminal OLT usually does Dynamic Bandwidth Allocation according to optical network unit ONU（Dynamic Bandwidth
Allocation, DBA）, receive data for the distribution of each optical network unit ONU or send the timeslice of data, thus it is existing
Optical Access Network needs to be QoS to substantial amounts of ONU（Quality of Service, service quality）Scheduling, it is inevitable just to need
Expensive queue scheduling memory is wanted, so that the maintenance cost, scheduling cost to optical network unit ONU can be very high.
The content of the invention
The present invention provides a kind of optical network unit ONU, optical line terminal OLT and information transferring method, existing to solve
Optical Access Network build and message transmitting procedure in, the problems such as cost is higher.
An embodiment of the present invention provides a kind of optical network unit ONU, the optical network unit ONU, including：User side interface
Unit and passive optical network PON interface unit, wherein,
PON interface units, for receiving the first PON physical layer frames from optical line terminal OLT, remove the first PON physical layers
The first PON physical layer frames frame head and the first PON media access control MAC frame frame heads in frame, obtain the first frame；
First user side interface unit, the second frame encapsulation first for being got for the first user side interface unit are non-
PON physical layer frame frame heads, obtain the first non-PON physical layer frames, and the first non-PON physical layer frames are sent to user equipment, its
In the second frame be the first frame or the frame that is obtained based on the first frame.
The embodiment of the present invention additionally provides a kind of information transferring method, the described method includes：
PON interface units receive the first PON physical layer frames from optical line terminal OLT, remove the first PON physical layer frames
In the first PON physical layer frames frame head and the first PON media access control MAC frame frame heads, obtain the first frame；
First user side interface unit encapsulates the first non-PON physics for the second frame that the first user side interface unit is got
Layer frame frame head, obtains the first non-PON physical layer frames, and the described first non-PON physical layer frames are sent to user equipment, wherein institute
The second frame is stated as first frame or the frame obtained based on first frame.
The embodiment of the present invention additionally provides a kind of optical line terminal OLT, the optical network unit OLT, including：
Encapsulation unit, for for the first frame encapsulate successively the first passive optical network PON media access control MAC frame frame head and
First PON physical layer frame frame heads, obtain the first PON physical layer frames, wherein the first frame is the 2nd PON mac frame or is packaged with second
The ethernet frame of PON mac frames；
Transmitting element, for sending the first PON physical layer frames to optical network unit ONU.
The embodiment of the present invention additionally provides a kind of information transferring method, the described method includes：
Encapsulation unit encapsulates the first passive optical network PON media access control MAC frame frame head and first successively for the first frame
PON physical layer frame frame heads, obtain the first PON physical layer frames, wherein first frame is the 2nd PON mac frame or is packaged with second
The ethernet frame of PON mac frames；
Transmitting element sends the first PON physical layer frames to optical network unit ONU.
The beneficial effect that technical solution provided in an embodiment of the present invention is brought is：
In the embodiment of the present invention, the first PON physical layers received from optical line terminal OLT are removed by PON interface units
The first PON physical layer frames frame head and the first PON media access control MAC frame frame heads in frame, obtain the first frame, the first user side
Interface unit encapsulates the first non-PON physical layer frames frame head for the second frame, obtains the first non-PON physical layer frames, and by the first non-PON
Physical layer frame is sent to user equipment.So as to ensure that user equipment has the function of the 2nd PON MAC chains of command and PON controls
Face function, it is ensured that OLT ensure that the data of different virtual ONU exist to TDMA networks, TDMA networks is formed between user equipment
ONU will not be collided, so that ONU can be with it goes without doing QoS（Quality of Service, service quality）Scheduling, avoids costliness
Queue scheduling memory, reduce cost.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
Become apparent, below especially exemplified by preferred embodiment, and coordinate attached drawing, describe in detail as follows.
Brief description of the drawings
Fig. 1 is the major networks configuration diagram and protocol stack schematic diagram of existing Optical Access Network；
Fig. 2 is major networks configuration diagram and the protocol stack signal of Optical Access Network provided by one embodiment of the present invention
Figure；
Fig. 3 is the main frame block diagram of optical network unit ONU provided by one embodiment of the present invention；
Fig. 4 is the main frame block diagram for the optical network unit ONU that another embodiment of the present invention provides；
Fig. 5 to Fig. 9 is the method flow diagram of information transferring method provided in an embodiment of the present invention；Figure 10 is the present invention one
The main frame block diagram for the optical line terminal OLT that embodiment provides；
Figure 11 is the main frame block diagram for the optical line terminal OLT that another embodiment of the present invention provides；
Figure 12 is the method flow diagram for the information transferring method that further embodiment of the present invention provides；
Figure 13 is the major networks configuration diagram and protocol stack for the Optical Access Network that another embodiment of the present invention provides
Schematic diagram；
Figure 14 is the major networks configuration diagram for the Optical Access Network that another embodiment of the invention provides；
Figure 15 is the major networks configuration diagram for the Optical Access Network that further embodiment of the present invention provides.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Attached drawing and preferred embodiment, to according to optical network unit ONU proposed by the present invention, optical line terminal OLT and information transmission side
Method its embodiment, structure, feature and effect, describe in detail as after.
For the present invention foregoing and other technology contents, feature and effect, in the following preferable reality coordinated with reference to schema
Applying during example describes in detail to be clearly presented.By the explanation of embodiment, when predetermined mesh can be reached to the present invention
The technological means taken and effect be able to more deeply and it is specific understand, but institute's accompanying drawings are only to provide with reference to saying
It is bright to be used, not it is used for being any limitation as the present invention.
Please refer to Fig.2, it illustrates Optical Access Network provided by one embodiment of the present invention（It is referred to as FTTx）Main net
Network configuration diagram and protocol stack schematic diagram.The Optical Access Network, including：Optical network unit ONU 201 and optical line terminal
OLT203.Optical line terminal OLT 203 passes through optical network unit ONU 201 and user equipment（CPE）205 are connected.
More specifically, user equipment 205, can be DSL（Digital Subscriber Line, Digital Subscriber Line）
Modem（Modem）User equipment, Cable Modem（Cable modem）User equipment, ethernet user's equipment,
Power line modem user equipment, wireless user equipment etc..Can be that home gateway, enterprise network gateway or honeycomb are small
Area's gateway（Cell Site Gateway）Deng.
Here, the present invention sets the 2nd PON using user equipment 205 as a virtual ONU in user equipment 205
MAC chains of command function and PON chain of command functions.At this time, OLT203 develops into time division multiple acess to user equipment 205（Time
Division Multiple Access, TDMA）Network.OLT203 is used to managing and controlling virtual ONU, for each virtual ONU
Different receptions or sending time piece are distributed, i.e. OLT203 does Dynamic Bandwidth Allocation by virtual ONU（DBA）.Since TDMA ensures
The data of different virtual ONU will not be collided in ONU201, and ONU201 can be with it goes without doing QoS（Quality of Service, clothes
Business quality）Scheduling, avoids the queue scheduling memory of costliness, so as to reduce cost.
In addition, user equipment 205 supports PON management agreements to configure and manage virtual ONU.For example, for GPON or under
Generation GPON, user equipment 205 will support OMCI agreements to configure and manage virtual ONU；For EPON or next generation EPON, use
Family equipment 205 will support Ethernet OAM agreement to configure and manage virtual ONU.
Virtual ONU（That is user equipment 205）Using the 2nd PON MAC and its chain of command function, and ONU uses the first PON
MAC and its chain of command function.The reason for so setting is in order to which virtual ONU unifications are arrived the mould based on EPON or next generation EPON
Formula, rather than the virtual ONU based on GPON or next generation's GPON patterns and the pattern based on EPON or next generation EPON are virtual
ONU coexists.In this way, a kind of PON patterns transceiving data is arrived into the unification of user equipment 205, so as to facilitate transceiving data, reduce into
This.
In conclusion Optical Access Network provided in this embodiment, by setting the 2nd PONMAC chains of command in user equipment
Function and PON chain of command functions, are virtually a special ONU by user equipment.At this time, OLT develops into user equipment
TDMA networks, TDMA networks ensure that the data of different virtual ONU will not be collided in ONU, so that ONU can be with it goes without doing QoS
（Quality of Service, service quality）Scheduling, avoids the queue scheduling memory of costliness, reduces cost.In addition,
Also by the way that user equipment is unified to a kind of PON patterns transceiving data, so as to facilitate transceiving data, reduce further cost.
Second embodiment
Please refer to Fig.3, it illustrates the main frame block diagram of optical network unit ONU provided by one embodiment of the present invention.
The optical network unit ONU, including：First user side interface unit 301 and passive optical network PON interface unit 303.
Specifically, PON interface units 303, for receiving the first PON physical layer frames from optical line terminal OLT, remove first
The first PON physical layer frames frame head and the first PON media access control MAC frame frame heads in PON physical layer frames, obtain the first frame.
Wherein, the first PON physical layer frames frame head can be Gigabit Passive Optical Network GPON physical layer frames frame head and first
PON mac frames frame head can be GPON mac frame frame heads；
Alternatively,
First PON physical layer frames frame head can be next generation's GPON physical layer frames frame head and the first PONMAC frame frame heads can
Think GPON mac frames frame head of future generation；
Alternatively,
First PON physical layer frames frame head can be Ethernet passive optical network EPON physical layer frames frame head and the first PON
Mac frame frame head can be EPON mac frame frame heads；
Alternatively,
First PON physical layer frames frame head can be next generation's EPON physical layer frames frame head and the first PONMAC frame frame heads can
Think EPON mac frames frame head of future generation.
First frame can be the second PON mac frames, or be packaged with the ethernet frame of the 2nd PON mac frames.
First user side interface unit 301, for the second frame encapsulation the got for the first user side interface unit 301
One non-PON physical layer frames frame head, obtains the first non-PON physical layer frames, and the first non-PON physical layer frames are sent out to user equipment
Send.
Wherein, the second frame can be the first frame or the frame obtained based on the first frame.The side of second frame is obtained based on the first frame
Method will be described in detail in the following embodiments.
Non- PON physical layer frames can be DSL physical layer frames, cable physical layer frame, ethernet physical layer frame, power line physical
Layer frame or radio physical layer frame etc..User equipment can be home gateway, enterprise network gateway or cellular cell gateway（Cell
Site Gateway）Deng.
In conclusion optical network unit ONU provided in this embodiment, is removed whole from optical link by PON interface units 303
Hold the first PON physical layer frames frame head and the first PON media access control MAC frame frames in the first PON physical layer frames of OLT receptions
Head, obtains the first frame, and the first user side interface unit 301 encapsulates the first non-PON physical layer frames frame head for the second frame, obtains first
Non- PON physical layer frames, and the first non-PON physical layer frames are sent to user equipment.So as to ensure that user equipment 205 has
2nd PONMAC chains of command function and PON chain of command functions, it is ensured that OLT to formation TDMA networks, TDMA between user equipment
Network ensure that the data of different virtual ONU will not be collided in ONU, so that ONU can be with it goes without doing QoS（Quality of
Service, service quality）Scheduling, avoids the queue scheduling memory of costliness, reduces cost.
3rd embodiment
Please refer to Fig.4, the main frame frame of the optical network unit ONU provided it illustrates another embodiment of the present invention
Figure.It is similar to the optical network unit ONU shown in Fig. 3, its difference is, further includes：Retransmission unit 405.
First user side interface unit 401 and passive optical network PON interface unit 403 respectively with Fig. 3 embodiments
One user side interface unit 301 and passive optical network PON interface unit 303 correspond to identical, specifically refer to above-mentioned Fig. 3 embodiments
Corresponding description.
Preferably, when the first frame is the 2nd PON mac frames, when the second frame is the first frame,
Then retransmission unit 405, are specifically used for：
The lead code of the 2nd PON mac frames is removed, obtains the PON mac frames of no lead code；
According to the destination address of the 2nd PON mac frames or VLAN ID VLAN ID inquiry media access control MACs
Forwarding table, obtains forwarding information；
Lead code is added for the PON mac frames of no lead code, obtains the 2nd PON mac frames；
2nd PON mac frames are forwarded to by the first user side interface unit 401 according to forwarding information；
Wherein, the 2nd PON mac frames are Ethernet passive optical network EPON mac frames or next generation's EPON mac frames.
Here, using user equipment as virtual ONU, and each virtual ONU is assigned with an ONU ID.
Lead code can include the first ONU ID for user equipment distribution.In this way, ONU is transmitted to user equipment mac frame
When, user equipment can identify OUN ID from the lead code of mac frame, therefore only need ONU to band ONU ID in lead code
Mac frame do normal forwarding can.The forwarding process of normal forwarding process, that is, above-mentioned retransmission unit 405.
Forwarding information can include address information of user equipment etc..
In addition, the first domain in the PON mac frames without lead code can also include the first ONU ID, the first domain is by user
Equipment is identified as the domain for carrying the first ONU ID.In this way, if ONU is transmitted to user equipment mac frame, user equipment can be from
OUN ID are identified in special domain, therefore only need ONU to do normal forwarding to the mac frame for having ONU ID in special domain just
Can be with.The forwarding process of normal forwarding process, that is, above-mentioned retransmission unit 405.
If user equipment cannot identify the ONU ID in lead code, but it can identify the ONU ID in some special domain
When, then ONU needs ONU ID to move to this special domain, such as " the first domain " as described below from lead code transfer.Such a feelings
Retransmission unit 405 uses following forwarding process under condition：
Preferably, when the first frame is the 2nd PON mac frames, when the second frame is the frame obtained based on the first frame,
Retransmission unit 405, is specifically additionally operable to：
The first ONU ID of user equipment distribution are retrieved as from the first lead code of the 2nd PON mac frames, wherein second
First lead code of PON mac frames carries the first ONU ID；
The first lead code of the 2nd PON mac frames is removed, obtains the PON mac frames of no lead code；
Media access control MAC forwarding table is inquired about according to the PON mac frames of no lead code, obtains forwarding information；
By the first ONU ID added to the first domain in the PON mac frames of no lead code, the first domain is for carrying first
The domain of ONU ID；
The second lead code is added to carry the PON mac frames without lead code of the first ONU ID, obtains the second frame；
Second frame is forwarded to by the first user side interface unit 401 according to forwarding information；
Wherein, the 2nd PON mac frames are Ethernet passive optical network EPON mac frames or next generation's EPON mac frames.
Forwarding information can include the address information of user equipment.
The information of first lead code and the second lead code can be the same or different.First lead code and the second lead code
Information depending on the form of frame, to ensure the integrality of frame and normal send.
If there is ethernet frame frame head between the 2nd PON mac frames and the first PON mac frames, the mesh in ethernet frame frame head
Address it is identical with the destination address of the 2nd PON mac frames, then ONU according to the destination address of ethernet frame be forwarded to equivalent to
Forwarding to the 2nd PON mac frames.Retransmission unit 405 uses following forwarding process in such cases：
Preferably, when the first frame is the ethernet frame that is packaged with the 2nd PON mac frames, the destination address of ethernet frame and
The destination address of two PON mac frames is identical, when the second frame is the first frame,
Retransmission unit 405, is specifically additionally operable to：
Media access control MAC forwarding table is inquired about according to the destination address of ethernet frame, obtains forwarding information；
Ethernet frame is forwarded to by the first user side interface unit 401 according to forwarding information；
Wherein, the 2nd PON mac frames are EPON mac frames or next generation's EPON mac frames.
Preferably, retransmission unit 405, are specifically additionally operable to：
First frame is broadcasted to multiple user side interface units including the first user side interface unit 401, wherein,
First frame is the 2nd PON mac frames, and the second frame is the first frame, and the 2nd PON mac frames are Gigabit Passive Optical Network GPON mac frames
Or next generation's GPON mac frames.
Preferably, when the first frame is the 2nd PON mac frames, the second frame is the first frame, and the 2nd PON mac frames are 1000 M passive
When optical-fiber network GPON mac frames or next generation's GPON mac frames,
Retransmission unit 405, is specifically additionally operable to：
Obtain the first ONU ID for user equipment distribution of the first frame carrying；
The correspondence of the first ONU ID and the first user side interface unit is inquired about using the first ONU ID, determines the first use
Family side interface unit；
First frame is forwarded to the first user side interface unit 401.
The correspondence of the first ONU ID and the first user side interface unit is inquired about using the first ONU ID to be found
Which the first user side interface unit is specifically issued, the first frame is then forwarded to identified first user side interface unit again
401。
In conclusion optical network unit ONU provided in this embodiment, also passes through the different forwarding process of retransmission unit.From
And it is able to ensure that user equipment 205 has the function of the 2nd PON MAC chains of command and PON chain of command functions, it is ensured that OLT to user
TDMA networks are formed between equipment, TDMA networks ensure that the data of different virtual ONU will not be collided in ONU, so that ONU can be with
It goes without doing QoS（Quality of Service, service quality）Scheduling, avoids the queue scheduling memory of costliness, reduces
Cost.User equipment can also be made unified to a kind of PON patterns transceiving data, so as to facilitate transceiving data, reduce further
Cost.
It is below the embodiment of the method for the present invention, the details of not detailed description, may be referred to above-mentioned in embodiment of the method
Corresponding device embodiment.
Fourth embodiment
Fig. 5 is refer to, it illustrates the method flow diagram of information transferring method provided by one embodiment of the present invention.It is described
Information transferring method, it may include following steps 501-503：
Step 501, PON interface units receive the first PON physical layer frames from optical line terminal OLT, remove the first PON physics
The first PON physical layer frames frame head and the first PON media access control MAC frame frame heads in layer frame, obtain the first frame.
Step 503, the second frame encapsulation first that the first user side interface unit gets for the first user side interface unit
Non- PON physical layer frames frame head, obtains the first non-PON physical layer frames, and the first non-PON physical layer frames are sent to user equipment,
Wherein the second frame is the first frame or the frame obtained based on the first frame.First PON physical layer frames frame head is Gigabit Passive Optical Network
GPON physical layer frames frame head and the first PON mac frames frame head are GPON mac frame frame heads；
Alternatively,
Under first PON physical layer frame frame heads are GPON physical layer frames frame head of future generation and the first PON mac frame frame heads are
Generation GPON mac frame frame heads；
Alternatively,
First PON physical layer frames frame head is Ethernet passive optical network EPON physical layer frames frame head and the first PON MAC
Frame frame head is EPON mac frame frame heads；
Alternatively,
Under first PON physical layer frame frame heads are EPON physical layer frames frame head of future generation and the first PON mac frame frame heads are
Generation EPON mac frame frame heads.
Preferably, after step 501, may also include：
Retransmission unit broadcasts the first frame to multiple user side interface units including the first user side interface unit,
Wherein, the first frame is the 2nd PON mac frames, and the second frame is the first frame, and the 2nd PON mac frames are Gigabit Passive Optical Network GPON
Mac frame or next generation's GPON mac frames.
In conclusion information transferring method provided in this embodiment, is removed from optical line terminal by PON interface units
The first PON physical layer frames frame head and the first PON media access control MAC frame frames in the first PON physical layer frames that OLT is received
Head, obtains the first frame, then encapsulates the first non-PON physical layer frames frame head by the first user side interface unit for the second frame, obtains
First non-PON physical layer frames, and the first non-PON physical layer frames are sent to user equipment.So as to ensure that user equipment has
There are the 2nd PON MAC chains of command functions and PON chain of command functions, it is ensured that OLT to formation TDMA networks between user equipment,
TDMA networks ensure that the data of different virtual ONU will not be collided in ONU, so that ONU can be with it goes without doing QoS（Quality of
Service, service quality）Scheduling, avoids the queue scheduling memory of costliness, reduces cost.
5th embodiment
Fig. 6 is refer to, the method flow diagram of the information transferring method provided it illustrates another embodiment of the present invention.Its
Similar to the information transferring method shown in Fig. 5, its difference is, after the step 501 of Fig. 5, may also include following step
Rapid 601-607：
Step 601, retransmission unit removes the lead code of the 2nd PON mac frames, obtains the PON mac frames of no lead code；
Step 603, retransmission unit is looked into according to the destination address or VLAN ID VLAN ID of the 2nd PON mac frames
Media access control MAC forwarding table is ask, obtains forwarding information；
Step 605, retransmission unit adds lead code for the PON mac frames of no lead code, obtains the 2nd PON mac frames；
Step 607, the 2nd PON mac frames are forwarded to the first user side interface unit by retransmission unit according to forwarding information；
Wherein, the first frame is the 2nd PON mac frames, and the second frame is the first frame, and the 2nd PON mac frames are Ethernet passive light
Network EPON mac frames or next generation's EPON mac frames.
Lead code can include the first ONU ID for user equipment distribution.
The first domain in the PON mac frames of no lead code can also include the first ONU ID, and the first domain is by user equipment
It is identified as the domain for carrying the first ONU ID.
In conclusion information transferring method provided in this embodiment, also by being the 2nd PON mac frames in the first frame, the
When two frames are the first frame, retransmission unit forwards the information to the flow of the first user side interface unit.So as to ensure user
Equipment has the function of the 2nd PON MAC chains of command and PON chain of command functions, it is ensured that OLT is to forming TDMA between user equipment
Network, TDMA networks ensure that the data of different virtual ONU will not be collided in ONU, so that ONU can be with it goes without doing QoS
（Quality of Service, service quality）Scheduling, avoids the queue scheduling memory of costliness, reduces cost.Can also
Enough make user equipment unified to a kind of PON patterns transceiving data, so as to facilitate transceiving data, reduce further cost.
Sixth embodiment
Fig. 7 is refer to, the method flow diagram of the information transferring method provided it illustrates another embodiment of the invention.Its
Similar to the information transferring method shown in Fig. 5, its difference is, after the step 501 of Fig. 5, may also include following step
Rapid 701-711：
Step 701, retransmission unit is retrieved as the first of user equipment distribution from the first lead code of the 2nd PON mac frames
ONU ID, wherein the first lead code of the 2nd PON mac frames carries the first ONU ID；
Step 703, retransmission unit removes the first lead code of the 2nd PON mac frames, obtains the PON MAC of no lead code
Frame；
Step 705, retransmission unit inquires about media access control MAC forwarding table according to the PON mac frames of no lead code, obtains
Forwarding information；
Step 707, retransmission unit by the first ONU ID added to the first domain in the PON mac frames of no lead code, first
Domain is the domain for carrying the first ONU ID；
Step 709, retransmission unit adds the second lead code to carry the PON mac frames without lead code of the first ONU ID,
Obtain the second frame；
Step 711, the second frame is forwarded to the first user side interface unit by retransmission unit according to forwarding information；
Wherein, the first frame is the 2nd PON mac frames, and the second frame is the frame obtained based on the first frame, and the 2nd PON mac frames are
Ethernet passive optical network EPON mac frames or next generation's EPON mac frames.
In conclusion information transferring method provided in this embodiment, also by being the 2nd PON mac frames in the first frame, the
When two frames are the frame obtained based on the first frame, retransmission unit forwards the information to the flow of the first user side interface unit.So as to
It is able to ensure that user equipment has the function of the 2nd PON MAC chains of command and PON chain of command functions, it is ensured that OLT to user equipment
Between form TDMA networks, TDMA networks ensure that the data of different virtual ONU will not be collided in ONU, so that ONU can not have to
It is QoS（Quality of Service, service quality）Scheduling, avoids the queue scheduling memory of costliness, reduces cost.
User equipment can also be made unified to a kind of PON patterns transceiving data, so as to facilitate transceiving data, reduce further cost.
7th embodiment
Fig. 8 is refer to, the method flow diagram of the information transferring method provided it illustrates further embodiment of the present invention.Its
Similar to the information transferring method shown in Fig. 5, its difference is, after the step 501 of Fig. 5, may also include following step
Rapid 801-803：
Step 801, retransmission unit inquires about media access control MAC forwarding table according to the destination address of ethernet frame, obtains
Forwarding information；
Step 803, ethernet frame is forwarded to the first user side interface unit by retransmission unit according to forwarding information；
Wherein, the first frame is the ethernet frame for being packaged with the 2nd PON mac frames, the destination address of ethernet frame and second
The destination address of PON mac frames is identical, and the second frame is the first frame, and the 2nd PON mac frames are EPON mac frames or next generation EPON
Mac frame.
In conclusion information transferring method provided in this embodiment, also by being packaged with the 2nd PON MAC in the first frame
The destination address of the ethernet frame of frame, the destination address of ethernet frame and the 2nd PON mac frames is identical, and the second frame is the first frame
When, retransmission unit forwards the information to the flow of the first user side interface unit.So as to ensure that user equipment has second
PON MAC chains of command functions and PON chain of command functions, it is ensured that OLT to formation TDMA networks, TDMA networks between user equipment
Ensure that the data of different virtual ONU will not collide in ONU, so that ONU can be with it goes without doing QoS（Quality of Service,
Service quality）Scheduling, avoids the queue scheduling memory of costliness, reduces cost.User equipment can also be made unified to one
Kind PON pattern transceiving datas, so as to facilitate transceiving data, reduce further cost.
8th embodiment
Fig. 9 is refer to, the method flow diagram of the information transferring method provided it illustrates further embodiment of the present invention.Its
Similar to the information transferring method shown in Fig. 5, its difference is, after the step 501 of Fig. 5, may also include following step
Rapid 901-905：
Step 901, retransmission unit obtains the first ONU ID for user equipment distribution that the first frame carries；
Step 903, retransmission unit inquires about pair of the first ONU ID and the first user side interface unit using the first ONU ID
It should be related to, determine the first user side interface unit；
Step 905, the first frame is forwarded to the first user side interface unit by retransmission unit；
Wherein, the first frame is the 2nd PON mac frames, and the second frame is the first frame, and the 2nd PON mac frames are 1000 M passive light net
Network GPON mac frames or next generation's GPON mac frames.
In conclusion information transferring method provided in this embodiment, also by being the 2nd PON mac frames in the first frame, the
When two frames are the first frame, retransmission unit forwards the information to the flow of the first user side interface unit.So as to ensure user
Equipment has the function of the 2nd PON MAC chains of command and PON chain of command functions, it is ensured that OLT is to forming TDMA between user equipment
Network, TDMA networks ensure that the data of different virtual ONU will not be collided in ONU, so that ONU can be with it goes without doing QoS
（Quality of Service, service quality）Scheduling, avoids the queue scheduling memory of costliness, reduces cost.Can also
Enough make user equipment unified to a kind of PON patterns transceiving data, so as to facilitate transceiving data, reduce further cost.
9th embodiment
0 is please referred to Fig.1, it illustrates the main frame block diagram of optical line terminal OLT provided by one embodiment of the present invention.
The optical line terminal OLT, including：Encapsulation unit 1001 and transmitting element 1003.
Specifically, encapsulation unit 1001, for encapsulating the first passive optical network PON medium education successively for the first frame
Mac frame frame head and the first PON physical layer frame frame heads, obtain the first PON physical layer frames, wherein the first frame is the 2nd PON mac frames
Or it is packaged with the ethernet frame of the 2nd PON mac frames；
Transmitting element 1003, for sending the first PON physical layer frames to optical network unit ONU.
2nd PON mac frames can include identifying ID for the first ONU of user equipment distribution.
First ONU ID can be included in the lead code of the 2nd PON mac frames；
Or,
First ONU ID can be included in the first domain of the 2nd PON mac frames, and the first domain is to be identified by user equipment
For the domain for carrying the first ONU ID, the lead code of the 2nd PON mac frames is outside the first domain.
2nd PON mac frames can be EPON mac frames or next generation's EPON mac frames.
First PON physical layer frames frame head is Gigabit Passive Optical Network GPON physical layer frames frame head and the first PON mac frames
Frame head is GPON mac frame frame heads；
Alternatively,
Under first PON physical layer frame frame heads are GPON physical layer frames frame head of future generation and the first PON mac frame frame heads are
Generation GPON mac frame frame heads；
First PON physical layer frames frame head is Ethernet passive optical network EPON physical layer frames frame head and the first PON MAC
Frame frame head is EPON mac frame frame heads；
Alternatively,
Under first PON physical layer frame frame heads are EPON physical layer frames frame head of future generation and the first PON mac frame frame heads are
Generation EPON mac frame frame heads.
In conclusion optical line terminal OLT provided in this embodiment, is encapsulated successively by encapsulation unit 1001 for the first frame
First passive optical network PON media access control MAC frame frame head and the first PON physical layer frame frame heads, obtain the first PON physical layers
Frame；The first PON physical layer frames are sent to optical network unit ONU by transmitting element again, are suitable for ONU so as to be converted into
The frame of reception, such a transmission mode ensure that ONU can be with it goes without doing QoS（Quality of Service, service quality）Scheduling,
The queue scheduling memory of costliness is avoided, reduces cost.
Tenth embodiment
1 is please referred to Fig.1, the main frame frame of the optical line terminal OLT provided it illustrates another embodiment of the present invention
Figure.It is similar to the optical line terminal OLT shown in Figure 10, its difference is, further includes：Bandwidth allocation element 1105.
Encapsulation unit 1101 and transmitting element 1103 respectively with the encapsulation unit 1001 and transmitting element in Figure 10 embodiments
1003 correspondences are identical, specifically refer to the corresponding description of above-mentioned Figure 10 embodiments.
Bandwidth allocation element 1105, for being user equipment bandwidth allocation according to the first ONU ID.
Since user equipment is by as virtual ONU, and each virtual ONU is assigned with an ONU ID.Bandwidth allocation list
Member 1105 is that user equipment distributes identical or different bandwidth according to the ONU ID of user equipment, so that different user equipmenies
Identical or different bandwidth transmission can be used and receive data.OLT develops into time division multiple acess to user equipment（Time
Division Multiple Access, TDMA）Network, since TDMA networks ensure that different virtual ONU（User equipment）'s
Data will not be collided in ONU, and ONU can QoS be dispatched so that it goes without doing, is avoided the queue scheduling memory of costliness, is reduced cost.
In conclusion optical line terminal OLT provided in this embodiment, also by bandwidth allocation element 1105 according to first
ONU ID are user equipment bandwidth allocation, so that different user equipmenies can transmit and receive number using defined bandwidth
According to.
It is below the embodiment of the method for the present invention, the details of not detailed description, may be referred to above-mentioned in embodiment of the method
Corresponding device embodiment.
11st embodiment
2 are please referred to Fig.1, the method flow diagram of the information transferring method provided it illustrates further embodiment of the present invention.
Described information transmission method, it may include following steps 1201-1203：
Step 1201, encapsulation unit encapsulates the first passive optical network PON media access control MAC frame frame successively for the first frame
Head and the first PON physical layer frame frame heads, obtain the first PON physical layer frames, wherein the first frame is the 2nd PON mac frame or is packaged with
The ethernet frame of 2nd PON mac frames；
Step 1203, transmitting element sends the first PON physical layer frames to optical network unit ONU.
2nd PON mac frames can include identifying ID for the first ONU of user equipment distribution.
First ONU ID can be included in the lead code of the 2nd PON mac frames；
Or,
First ONU ID can be included in the first domain of the 2nd PON mac frames, and the first domain is to be identified by user equipment
For the domain for carrying the first ONU ID, the lead code of the 2nd PON mac frames is outside the first domain.
2nd PON mac frames are EPON mac frames or next generation's EPON mac frames.
First PON physical layer frames frame head is Gigabit Passive Optical Network GPON physical layer frames frame head and the first PON mac frames
Frame head is GPON mac frame frame heads；
Alternatively,
Under first PON physical layer frame frame heads are GPON physical layer frames frame head of future generation and the first PON mac frame frame heads are
Generation GPON mac frame frame heads；
First PON physical layer frames frame head is Ethernet passive optical network EPON physical layer frames frame head and the first PON MAC
Frame frame head is EPON mac frame frame heads；
Alternatively,
Under first PON physical layer frame frame heads are EPON physical layer frames frame head of future generation and the first PON mac frame frame heads are
Generation EPON mac frame frame heads.
Preferably, information transferring method, may also include step：
Bandwidth allocation element is user equipment bandwidth allocation according to the first ONU ID.
In conclusion information transferring method provided in this embodiment, first is encapsulated by encapsulation unit successively for the first frame
Passive optical network PON media access control MAC frame frame head and the first PON physical layer frame frame heads, obtain the first PON physical layer frames；
The first PON physical layer frames are sent to optical network unit ONU by transmitting element again, are connect so as to be converted into suitable for ONU
The frame of receipts, such a transmission mode ensure that ONU can be with it goes without doing QoS（Quality of Service, service quality）Scheduling, keeps away
Exempt from the queue scheduling memory of costliness, reduce cost.Also set by bandwidth allocation element according to the first ONU ID for user
Standby bandwidth allocation, so that different user equipmenies can transmit and receive data using defined bandwidth.
12nd embodiment
3 are please referred to Fig.1, the major networks framework of the Optical Access Network provided it illustrates another embodiment of the present invention shows
It is intended to and protocol stack schematic diagram.It is similar to the Optical Access Network shown in Fig. 2, its difference is, optical line terminal OLT
Bandwidth allocation element 1301 is placed on optical line terminal OLT, and bandwidth allocation element 1301 is individually formed virtual OLT device or void
Intend OLT device pond.
At this time, virtual OLT device or virtual OLT device pond to user equipment develop into TDMA networks, since TDMA ensures
Different virtual ONU（That is user equipment）Data will not only be collided in ONU, but also will not be touched in optical line terminal OLT
Hit, thus optical network unit ONU and optical line terminal OLT can it goes without doing QoS scheduling, the queue scheduling for avoiding costliness deposits
Reservoir so that the cost of optical network unit ONU and optical line terminal OLT substantially reduces.
13rd embodiment
4 are please referred to Fig.1, the major networks framework of the Optical Access Network provided it illustrates another embodiment of the invention shows
It is intended to.It is similar to the Optical Access Network shown in Figure 13, its difference is, virtual ONU（That is user equipment）With bandwidth point
With using multistage PON to interconnect between unit, such bandwidth allocation element to user equipment can develop into TDMA networks.Due to
TDMA ensure that different virtual ONU（That is user equipment）Data will not only be collided in ONU, but also in optical line terminal OLT
Will not collide, thus optical network unit ONU and optical line terminal OLT can it goes without doing QoS scheduling, avoid the team of costliness
Row schedule memory so that the cost of optical network unit ONU and optical line terminal OLT substantially reduces.
14th embodiment
5 are please referred to Fig.1, the major networks framework of the Optical Access Network provided it illustrates further embodiment of the present invention shows
It is intended to.It is similar to the Optical Access Network shown in Figure 13, its difference is, virtual ONU（That is user equipment）With bandwidth point
With using PON and TDM between unit（Time Division Multiplexer/Multiplexing, time division multiplexing/multichannel are multiple
With）Looped network（Such as optical transfer network optical transport network, OTN）N is interconnected, such bandwidth allocation element to user
Equipment can develop into TDMA networks.Since TDMA ensure that different virtual ONU（That is user equipment）Data not only in ONU not
It can collide, and will not be collided in optical line terminal OLT, so that optical network unit ONU and optical line terminal OLT can not
It is used as QoS scheduling, avoids the queue scheduling memory of costliness so that the cost of optical network unit ONU and optical line terminal OLT
Substantially reduce.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the technical spirit pair according to the present invention without departing from technical solution of the present invention content
Any simple modification, equivalent change and modification that above example is made, in the range of still falling within technical solution of the present invention.
Claims (31)
1. a kind of optical network unit ONU, it is characterised in that the ONU includes the first user side interface unit and passive optical network
PON interface units, wherein,
The PON interface units, for receiving the first PON physical layer frames from optical line terminal OLT, remove the first PON things
The first PON physical layer frames frame head and the first PON media access control MAC frame frame heads in layer frame are managed, obtains the first frame, described the
One frame is the 2nd PON mac frames；
The first user side interface unit, for the second frame encapsulation first got for the first user side interface unit
Non- PON physical layer frames frame head, obtains the first non-PON physical layer frames, and the described first non-PON physical layer frames are sent out to user equipment
Send, wherein second frame is first frame or the frame obtained based on first frame.
2. ONU according to claim 1, it is characterised in that the ONU further includes retransmission unit.
3. ONU according to claim 2, it is characterised in that
Second frame is first frame；
The retransmission unit is specifically used for：
The lead code of the 2nd PON mac frames is removed, obtains the PON mac frames of no lead code；
According to the destination address of the 2nd PON mac frames or VLAN ID VLAN ID inquiry media access control MACs
Forwarding table, obtains forwarding information；
The lead code is added for the PON mac frames of the no lead code, obtains the 2nd PONMAC frames；
The 2nd PON mac frames are forwarded to by the first user side interface unit according to the forwarding information；
Wherein, the 2nd PON mac frames are Ethernet passive optical network EPON mac frames or next generation's EPON mac frames.
4. ONU according to claim 3, it is characterised in that the lead code includes for user equipment distribution
One ONU ID.
5. ONU according to claim 3, it is characterised in that the first domain in the PONMAC frames of the no lead code includes
First ONU ID, first domain are the domain being identified as by the user equipment for carrying the first ONU ID.
6. ONU according to claim 2, it is characterised in that
Second frame is the frame obtained based on first frame,
The retransmission unit is specifically used for：
The first ONU ID of the user equipment distribution are retrieved as from the first lead code of the 2nd PON mac frames, wherein
First lead code of the 2nd PON mac frames carries the first ONUID；
The first lead code of the 2nd PON mac frames is removed, obtains the PON mac frames of no lead code；
Media access control MAC forwarding table is inquired about according to the PON mac frames of no lead code, obtains forwarding information；
By the first ONU ID added to the no lead code PON mac frames in the first domain, first domain be for
Carry the domain of the first ONU ID；
The second lead code is added for the PON mac frames without lead code for carrying the first ONU ID, obtains described second
Frame；
Second frame is forwarded to by the first user side interface unit according to the forwarding information；
Wherein, the 2nd PON mac frames are Ethernet passive optical network EPON mac frames or next generation's EPON mac frames.
7. the ONU according to any one of claim 3 to 6, it is characterised in that
The first PON physical layer frames frame head is Gigabit Passive Optical Network GPON physical layer frames frame head and the first PON
Mac frame frame head is GPON mac frame frame heads；
Alternatively,
The first PON physical layer frames frame head is next generation's GPON physical layer frames frame head and the first PON mac frame frame heads
For GPON mac frames frame head of future generation；
Alternatively,
The first PON physical layer frames frame head is Ethernet passive optical network EPON physical layer frames frame head and the first PON
Mac frame frame head is EPON mac frame frame heads；
Alternatively,
The first PON physical layer frames frame head is next generation's EPON physical layer frames frame head and the first PON mac frame frame heads
For EPON mac frames frame head of future generation.
8. ONU according to claim 2, it is characterised in that the retransmission unit is specifically used for：
First frame is broadcasted to multiple user side interface units including the first user side interface unit, its
In, second frame is first frame, and the 2nd PON mac frames are Gigabit Passive Optical Network GPON mac frames or the next generation
GPON mac frames.
9. ONU according to claim 2, it is characterised in that second frame is first frame, the 2nd PON
Mac frame is Gigabit Passive Optical Network GPON mac frames or next generation's GPON mac frames；
The retransmission unit is specifically used for：
Obtain the first ONU ID for user equipment distribution that first frame carries；
The correspondence of the first ONU ID and the first user side interface unit is inquired about using the first ONU ID, really
The fixed first user side interface unit；
First frame is forwarded to the first user side interface unit.
10. a kind of optical network unit ONU, it is characterised in that the ONU includes the first user side interface unit and passive optical network
PON interface units, wherein,
The PON interface units, for receiving the first PON physical layer frames from optical line terminal OLT, remove the first PON things
The first PON physical layer frames frame head and the first PON media access control MAC frame frame heads in layer frame are managed, obtains the first frame；
The first user side interface unit, for the second frame encapsulation first got for the first user side interface unit
Non- PON physical layer frames frame head, obtains the first non-PON physical layer frames, and the described first non-PON physical layer frames are sent out to user equipment
Send, wherein second frame is first frame or the frame obtained based on first frame；
The ONU further includes retransmission unit；
First frame is the ethernet frame for being packaged with the 2nd PON mac frames, the destination address of the ethernet frame and described
The destination address of two PON mac frames is identical, and second frame is first frame；
The retransmission unit is specifically used for：
Media access control MAC forwarding table is inquired about according to the destination address of the ethernet frame, obtains forwarding information；
The ethernet frame is forwarded to by the first user side interface unit according to the forwarding information；
Wherein, the 2nd PON mac frames are EPON mac frames or next generation's EPON mac frames.
A kind of 11. information transferring method, it is characterised in that the described method includes：
PON interface units receive the first PON physical layer frames from optical line terminal OLT, remove in the first PON physical layer frames
First PON physical layer frames frame head and the first PON media access control MAC frame frame heads, obtain the first frame, and first frame is second
PON mac frames；
First user side interface unit encapsulates the first non-PON physics for the second frame that the first user side interface unit is got
Layer frame frame head, obtains the first non-PON physical layer frames, and the described first non-PON physical layer frames are sent to user equipment, wherein institute
The second frame is stated as first frame or the frame obtained based on first frame.
12. information transferring method according to claim 11, it is characterised in that PON interface units are from optical line terminal OLT
The first PON physical layer frames are received, remove the first PON physical layer frames frame head in the first PON physical layer frames and the first PON matchmaker
Body access control MAC frame frame head, after obtaining the first frame, further includes：
Retransmission unit removes the lead code of the 2nd PON mac frames, obtains the PON mac frames of no lead code；
The retransmission unit inquires about matchmaker according to the destination address or VLAN ID VLAN ID of the 2nd PON mac frames
Body access control MAC forwarding table, obtains forwarding information；
The retransmission unit adds the lead code for the PON mac frames of the no lead code, obtains the 2nd PON MAC
Frame；
The 2nd PON mac frames are forwarded to the first user side interface list by the retransmission unit according to the forwarding information
Member；
Wherein, second frame is first frame, and the 2nd PON mac frames are Ethernet passive optical network EPON mac frames
Or next generation's EPON mac frames.
13. information transferring method according to claim 12, it is characterised in that the lead code includes setting for the user
The first ONU ID that back-up is matched somebody with somebody.
14. information transferring method according to claim 12, it is characterised in that in the PON mac frames of the no lead code
The first domain include the first ONU ID, first domain is to be identified as being used to carry the first ONU ID by the user equipment
Domain.
15. information transferring method according to claim 11, it is characterised in that PON interface units are from optical line terminal OLT
The first PON physical layer frames are received, remove the first PON physical layer frames frame head in the first PON physical layer frames and the first PON matchmaker
Body access control MAC frame frame head, after obtaining the first frame, further includes：
Retransmission unit is retrieved as the first ONU ID of the user equipment distribution from the first lead code of the 2nd PON mac frames,
First lead code of wherein described second PON mac frames carries the first ONU ID；
The retransmission unit removes the first lead code of the 2nd PON mac frames, obtains the PON mac frames of no lead code；
The retransmission unit inquires about media access control MAC forwarding table according to the PON mac frames of no lead code, obtains forwarding letter
Breath；
The first ONU ID are added to the first domain in the PON mac frames of the no lead code by the retransmission unit, described
First domain is the domain for carrying the first ONU ID；
The retransmission unit adds the second lead code for the PON mac frames without lead code for carrying the first ONU ID,
Obtain second frame；
Second frame is forwarded to by the first user side interface unit according to the forwarding information；
Wherein, second frame is the frame obtained based on first frame, and the 2nd PON mac frames are Ethernet passive optical network
Network EPON mac frames or next generation's EPON mac frames.
16. the information transferring method according to any one of claim 11 to 15, it is characterised in that
The first PON physical layer frames frame head is Gigabit Passive Optical Network GPON physical layer frames frame head and the first PON
Mac frame frame head is GPON mac frame frame heads；
Alternatively,
The first PON physical layer frames frame head is next generation's GPON physical layer frames frame head and the first PON mac frame frame heads
For GPON mac frames frame head of future generation；
Alternatively,
The first PON physical layer frames frame head is Ethernet passive optical network EPON physical layer frames frame head and the first PON
Mac frame frame head is EPON mac frame frame heads；
Alternatively,
The first PON physical layer frames frame head is next generation's EPON physical layer frames frame head and the first PON mac frame frame heads
For EPON mac frames frame head of future generation.
17. information transferring method according to claim 11, it is characterised in that PON interface units are from optical line terminal OLT
The first PON physical layer frames are received, remove the first PON physical layer frames frame head in the first PON physical layer frames and the first PON matchmaker
Body access control MAC frame frame head, after obtaining the first frame, further includes：
Retransmission unit broadcasts first frame to multiple user side interfaces including the first user side interface unit
Unit, wherein, second frame is first frame, and the 2nd PON mac frames are Gigabit Passive Optical Network GPON mac frames
Or next generation's GPON mac frames.
18. information transferring method according to claim 11, it is characterised in that PON interface units are from optical line terminal OLT
The first PON physical layer frames are received, remove the first PON physical layer frames frame head in the first PON physical layer frames and the first PON matchmaker
Body access control MAC frame frame head, after obtaining the first frame, further includes：
Retransmission unit obtains the first ONU ID for user equipment distribution that first frame carries；
The retransmission unit inquires about the first ONU ID and the first user side interface unit using the first ONU ID
Correspondence, determine the first user side interface unit；
First frame is forwarded to the first user side interface unit by the retransmission unit；
Wherein, second frame is first frame, the 2nd PON mac frames for Gigabit Passive Optical Network GPON mac frames or
GPON mac frames of future generation.
A kind of 19. information transferring method, it is characterised in that the described method includes：
PON interface units receive the first PON physical layer frames from optical line terminal OLT, remove in the first PON physical layer frames
First PON physical layer frames frame head and the first PON media access control MAC frame frame heads, obtain the first frame；
First user side interface unit encapsulates the first non-PON physics for the second frame that the first user side interface unit is got
Layer frame frame head, obtains the first non-PON physical layer frames, and the described first non-PON physical layer frames are sent to user equipment, wherein institute
The second frame is stated as first frame or the frame obtained based on first frame；
The PON interface units receive the first PON physical layer frames from optical line terminal OLT, remove the first PON physical layer frames
In the first PON physical layer frames frame head and the first PON media access control MAC frame frame heads, after obtaining the first frame, further include：
Retransmission unit inquires about media access control MAC forwarding table according to the destination address of ethernet frame, obtains forwarding information；
The ethernet frame is forwarded to the first user side interface unit by the retransmission unit according to the forwarding information；
Wherein, first frame is the ethernet frame for being packaged with the 2nd PON mac frames, the destination address of the ethernet frame and institute
It is identical to state the destination address of the 2nd PON mac frames, second frame is first frame, and the 2nd PON mac frames are EPON
Mac frame or next generation's EPON mac frames.
20. a kind of optical line terminal OLT, it is characterised in that the OLT includes：
Encapsulation unit, for encapsulating the first passive optical network PON media access control MAC frame frame head and first successively for the first frame
PON physical layer frame frame heads, obtain the first PON physical layer frames, wherein first frame is the 2nd PON mac frame or is packaged with second
The ethernet frame of PON mac frames；
Transmitting element, for sending the first PON physical layer frames to optical network unit ONU；
First frame is used to enable the ONU to generate the first non-PON physical layer frames that can be identified by user equipment, described
First non-PON physical layer frames include the first non-PON physical layer frames frame head and first frame.
21. OLT according to claim 20, it is characterised in that the 2nd PON mac frames include distributing for user equipment
The first ONU mark ID.
22. OLT according to claim 21, it is characterised in that
The first ONU ID are included in the lead code of the 2nd PON mac frames；
Or,
The first ONU ID are included in the first domain of the 2nd PON mac frames, and first domain is by the user
Equipment is identified as the domain for carrying the first ONU ID, the lead codes of the 2nd PON mac frames first domain it
Outside.
23. the OLT according to claim 21 or 22, it is characterised in that the OLT is further included：
Bandwidth allocation element, for being the user equipment bandwidth allocation according to the first ONU ID.
24. the OLT according to any one of claim 20 to 22, it is characterised in that
The 2nd PON mac frames are EPON mac frames or next generation's EPON mac frames.
25. OLT according to claim 24, it is characterised in that
The first PON physical layer frames frame head is Gigabit Passive Optical Network GPON physical layer frames frame head and the first PON
Mac frame frame head is GPON mac frame frame heads；
Alternatively,
The first PON physical layer frames frame head is next generation's GPON physical layer frames frame head and the first PON mac frame frame heads
For GPON mac frames frame head of future generation；
The first PON physical layer frames frame head is Ethernet passive optical network EPON physical layer frames frame head and the first PON
Mac frame frame head is EPON mac frame frame heads；
Alternatively,
The first PON physical layer frames frame head is next generation's EPON physical layer frames frame head and the first PON mac frame frame heads
For EPON mac frames frame head of future generation.
A kind of 26. information transferring method, it is characterised in that the described method includes：
Encapsulation unit encapsulates the first passive optical network PON media access control MAC frame frame head and the first PON things successively for the first frame
Layer frame frame head is managed, obtains the first PON physical layer frames, wherein first frame is the 2nd PON mac frame or is packaged with the 2nd PON
The ethernet frame of mac frame；
Transmitting element sends the first PON physical layer frames to optical network unit ONU；
First frame is used to enable the ONU to generate the first non-PON physical layer frames that can be identified by user equipment, described
First non-PON physical layer frames include the first non-PON physical layer frames frame head and first frame.
27. information transferring method according to claim 26, it is characterised in that it is user that the 2nd PONMAC frames, which include,
The first ONU marks ID of equipment distribution.
28. information transferring method according to claim 27, it is characterised in that the first ONUID is included in described
In the lead code of 2nd PON mac frames；
Or,
The first ONU ID are included in the first domain of the 2nd PON mac frames, and first domain is by the user
Equipment is identified as the domain for carrying the first ONU ID, the lead codes of the 2nd PON mac frames first domain it
Outside.
29. the information transferring method according to claim 27 or 28, it is characterised in that further include：
Bandwidth allocation element is the user equipment bandwidth allocation according to the first ONU ID.
30. the information transferring method according to any one of claim 26 to 28, it is characterised in that
The 2nd PON mac frames are EPON mac frames or next generation's EPON mac frames.
31. information transferring method according to claim 30, it is characterised in that
The first PON physical layer frames frame head is Gigabit Passive Optical Network GPON physical layer frames frame head and the first PON
Mac frame frame head is GPON mac frame frame heads；
Alternatively,
The first PON physical layer frames frame head is next generation's GPON physical layer frames frame head and the first PON mac frame frame heads
For GPON mac frames frame head of future generation；
The first PON physical layer frames frame head is Ethernet passive optical network EPON physical layer frames frame head and the first PON
Mac frame frame head is EPON mac frame frame heads；
Alternatively,
The first PON physical layer frames frame head is next generation's EPON physical layer frames frame head and the first PON mac frame frame heads
For EPON mac frames frame head of future generation.
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| CN201310254374.1A CN104243092B (en) | 2013-06-24 | 2013-06-24 | Optical network unit ONU, optical line terminal OLT and information transferring method |
| PCT/CN2014/080292 WO2014206238A1 (en) | 2013-06-24 | 2014-06-19 | Optical network unit (onu), optical line terminal (olt), and information transmission method |
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| CN105516387B (en) * | 2015-12-09 | 2019-07-05 | 上海斐讯数据通信技术有限公司 | A kind of MAC address entries search method and system based on skip list |
| CN110301104B (en) | 2017-02-28 | 2021-01-05 | 华为技术有限公司 | Optical line terminal OLT equipment virtualization method and related equipment |
| US10382136B2 (en) | 2017-04-26 | 2019-08-13 | Futurewei Technologies, Inc. | Envelope header design in passive optical networks |
| CN109121026B (en) * | 2018-06-28 | 2021-03-02 | 烽火通信科技股份有限公司 | Method and system for realizing VOLT (Voice over Internet protocol) based on logic port |
| CN113163277B (en) * | 2021-06-23 | 2021-09-10 | 武汉长光科技有限公司 | Optical network unit bandwidth management method and device, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101188502A (en) * | 2007-12-06 | 2008-05-28 | 上海大学 | Ethernet passive optical network transfer unit with telecom E1 interface |
| CN101959091A (en) * | 2009-07-15 | 2011-01-26 | 华为技术有限公司 | Data transmission method, system and operator fringe node |
| CN102045130A (en) * | 2009-10-20 | 2011-05-04 | 华为技术有限公司 | Downlink framing method, optical line terminal and passive optical network system |
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| JP5402556B2 (en) * | 2009-11-19 | 2014-01-29 | 富士通株式会社 | Data transmission system, terminal station apparatus, and data transmission method |
| US9615153B2 (en) * | 2012-05-25 | 2017-04-04 | Avago Technologies General Ip (Singapore) Pte. Ltd. | System and method for applying an extended multipoint protocol to wireless access systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101188502A (en) * | 2007-12-06 | 2008-05-28 | 上海大学 | Ethernet passive optical network transfer unit with telecom E1 interface |
| CN101959091A (en) * | 2009-07-15 | 2011-01-26 | 华为技术有限公司 | Data transmission method, system and operator fringe node |
| CN102045130A (en) * | 2009-10-20 | 2011-05-04 | 华为技术有限公司 | Downlink framing method, optical line terminal and passive optical network system |
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