CN106685591A - Data transmission method and data transmission device - Google Patents
Data transmission method and data transmission device Download PDFInfo
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- CN106685591A CN106685591A CN201611130586.9A CN201611130586A CN106685591A CN 106685591 A CN106685591 A CN 106685591A CN 201611130586 A CN201611130586 A CN 201611130586A CN 106685591 A CN106685591 A CN 106685591A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
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Abstract
A data transmission method and a data transmission device are disclosed. The method comprises the following steps: receiving an uplink scheduling grant sent by an optical line terminal OLT, wherein the uplink scheduling grant includes at least two grant channels and the grant start time and grant length of time of each grant channel in the at least two grant channels; building at least two data frames in one-to-one correspondence with the at least two grant channels according to transmission data and the grant start time and grant length of time of each grant channel, wherein each of the at least two data frames includes at least one code word, each data frame caries a serial number, the serial number carried by each data frame is used to indicate the position of the first code word in the code words included in the data frame in the transmission data, and when each data frame includes two or more code words, the code words included in each data frame are continuous in the transmission data; and sending the at least two data frames to the OLT through the corresponding grant channels. According to the embodiments of the invention, the efficiency of data transmission can be improved.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of data transmission method and equipment.
Background technology
With the continuous development of broadband access technology, passive optical-fiber network (Passive Optical Network, PON)
Scale constantly becoming big.However, as user is continuously increased to data flow requirements, the bandwidth in existing PON cannot
Meet the demand of user.In order to solve the above problems, industry proposes passage binding method, i.e., by multiple passage simultaneous transmissions
Data.At present, a kind of conventional data transmission method is：With forward error correction (Forward Error Correction, FEC) code
Word is unit, and transmission data is mapped on different passages.But in the method, in order to ensure optical line terminal (Optical
Line Terminal, OLT) FEC code of different channel transfer relative position in a stream can be correctly identified, need
To increase FEC code serial number in the head of each FEC code, so that the digit that FEC code is used for transmission data is reduced, so as to
Reduce data transmission efficiency.
The content of the invention
The embodiment of the invention discloses a kind of data transmission method and equipment, for improving data transmission efficiency.
First aspect discloses a kind of data transmission method, and the method is applied to optical network unit (Optical Network
Unit, ONU), receive OLT send including each authorised channel at least two authorised channels and at least two authorised channels
Mandate initial time and authorize the uplink scheduling authorization of time span, according to the mandate of transmission data and each authorised channel
Time beginning and mandate time span, build and one-to-one at least two Frame of at least two authorised channels, and will at least
Two Frames are sent to OLT by corresponding authorised channel respectively.Each Frame at least two Frames includes
At least one code word, each Frame carries serial number, and the serial number that each Frame is carried is used to indicate each Frame
Including code word in position of first code word in transmission data, when each Frame includes two or more code words
When, the code word that each Frame includes is continuous in transmission data, therefore, it can first carried by each Frame
So that OLT realizes the restructuring at least two Frames by the serial number of code word, and because each Frame only needs to carry
The serial number of one code word in transmission data, therefore, the quantity of the serial number carried in Frame is reduced, so as to Frame
In can transmit more data, so as to improve data transmission efficiency.Wherein, transmission data is that ONU needs to be transferred to the number of OLT
According to.
In one embodiment, first code word in each Frame can include the first code block and the second code block, the
One code block is used for the synchronization from scrambler, and the second code block is used for the demarcation of reconciliation sublayer (Reconciliation Sublayer, RS)
And synchronization, the serial number that each Frame is carried, during the second code block in each Frame can be carried, can not change
In the case of Frame, the serial number of first code word is carried using the second code block, will not be taken using position extra in Frame
Tape serial number, can improve data transmission efficiency.
In one embodiment, first code word in each Frame can include the first code block, and the first code block is used for
From the synchronization of scrambler, the serial number that each Frame is carried in can carrying the first code block in each Frame, utilizes the
One code block can carry the serial number of first code word, because the data of the second code block itself do not transmit valid data, therefore, can
The second code block in delete Frame, so as in the location transmission data of the second code block, the length of Frame can be shortened
Degree, so as to while data transmission efficiency is improved, can further improve message transmission rate.
In one embodiment, the serial number that each Frame is carried, can carry the polishing in each Frame
Position, because the polishing position in Frame can carry the serial number of first code word, can delete the first code block in Frame
With the second code block, so as in the location transmission data of the first code block and the second code block, the length of Frame can be shortened, from
And while data transmission efficiency is improved, can further improve message transmission rate.
In one embodiment, each Frame can also carry LLID (Logical Link
Identifier, LLID) and including at least one code word number of codewords, LLID be used for identify ONU, so that OLT can be with root
Determine that Frame is sent by that ONU according to the LLID carried in Frame, and according to the Frame carried in Frame
Including the number of codewords of at least one code word realize the restructuring of Frame faster.
In one embodiment, the code word that each Frame includes can be FEC code, or other code words or its
Its code block.
Second aspect discloses a kind of data transmission method, and the method is applied to OLT, receives ONU and authorizes by least two
At least two Frames that passage sends, each Frame at least two Frames includes at least one code word, each
Frame carries serial number, and first code word that serial number is used to indicating in the code word that each Frame includes is in transmission data
In position, obtain the serial number that each Frame is carried, and weight is carried out at least two Frames according to the serial number for obtaining
To obtain transmission data, when the quantity of Frame is 2, and the serial number that the first Frame is carried is carried group less than the second Frame
Serial number when, first in transmission data code word is first code word in the first Frame, when the second Frame carry
Serial number when being the adjacent next serial number of serial number carried with the first Frame, second in transmission data code word
For first code word in the second Frame, when the serial number that the second Frame is carried is not the sequence that carries with the first Frame
During number adjacent next serial number, second in transmission data code word is second code word in the first Frame.Due to
Each Frame only carries at least one code word for including serial number of first code word in transmission data, therefore, subtract
The quantity of the serial number carried in Frame is lacked, so that more data can be transmitted in Frame, has passed so as to improve data
Defeated efficiency.Wherein, transmission data is the data that OLT can be received from ONU.
In one embodiment, first code word in each Frame can include the first code block and the second code block, the
One code block is used for from the synchronization of scrambler, and the second code block is used for the demarcation and synchronization of RS, the serial number that each Frame is carried, can be with
In carrying the second code block in each Frame, the can be carried using the second code block in the case of not change data frame
The serial number of one code word, will not use position extra in Frame to carry serial number, can improve data transmission efficiency.
In one embodiment, first code word in each Frame can include the first code block, and the first code block is used for
From the synchronization of scrambler, the serial number that each Frame is carried in can carrying the first code block in each Frame, utilizes the
One code block can carry the serial number of first code word, because the data of the second code block itself do not transmit valid data, therefore, can
The second code block in delete Frame, so as in the location transmission data of the second code block, the length of Frame can be shortened
Degree, so as to while data transmission efficiency is improved, can further improve message transmission rate.
In one embodiment, the serial number that each Frame is carried, can carry the polishing position in each Frame
In, because the polishing position in Frame can carry the serial number of first code word, the first code block in Frame can be deleted
With the second code block, so as in the location transmission data of the first code block and the second code block, the length of Frame can be shortened, from
And while data transmission efficiency is improved, can further improve message transmission rate.
In one embodiment, each Frame can also carry LLID and including at least one code word code word number
Amount, LLID is used to identify ONU, carries out restructuring at least two Frames and obtains transmission data according to the serial number for obtaining, can be with
It is that at least two Frames are recombinated according to the serial number, LLID and number of codewords for obtaining, to obtain the transmission of ONU transmission
Data.OLT can determine which Frame is sent by that ONU according to the LLID carried in Frame, and according to number
The number of codewords of at least one code word included according to the Frame carried in frame realizes faster the restructuring of Frame.
In one embodiment, the code word that each Frame includes can be FEC code, it is also possible to other code words or other
Code block.
The third aspect discloses a kind of ONU, and the ONU includes real for performing any one possibility of first aspect or first aspect
The unit of the data transmission method that existing mode is provided.
Fourth aspect discloses a kind of ONU, and the ONU includes processor, memorizer and transceiver, and memorizer is used for storage program
Code, processor is used for configuration processor code, and transceiver is used to be communicated with OLT.When computing device memory storage
During program code so that the data disclosed in any one possible implementation of computing device first aspect or first aspect are passed
Transmission method.
5th aspect discloses a kind of readable storage medium storing program for executing, and the readable storage medium storing program for executing stores ONU for performing first aspect
Or the program code of the data transmission method disclosed in any one possible implementation of first aspect.
6th aspect discloses a kind of OLT, and the OLT includes real for performing any one possibility of second aspect or second aspect
The unit of the data transmission method that existing mode is provided.
7th aspect discloses a kind of OLT, and the OLT includes processor, memorizer and transceiver, and memorizer is used for storage program
Code, processor is used for configuration processor code, and transceiver is used to be communicated with OLT.When computing device memory storage
During program code so that the data disclosed in any one possible implementation of computing device second aspect or second aspect are passed
Transmission method.
Eighth aspect discloses a kind of readable storage medium storing program for executing, and the readable storage medium storing program for executing stores OLT for performing second aspect
Or the program code of the data transmission method disclosed in any one possible implementation of second aspect.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below by to be used needed for embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this area
For those of ordinary skill, without having to pay creative labor, can be attached to obtain others according to these accompanying drawings
Figure.
Fig. 1 is a kind of network architecture schematic diagram disclosed in the embodiment of the present invention；
Fig. 2 is the schematic diagram of uplink burst data frame structure in a kind of EPON system disclosed in the embodiment of the present invention
Fig. 3 is a kind of schematic flow sheet of data transmission method disclosed in the embodiment of the present invention；
Fig. 4 is a kind of structural representation of ONU disclosed in the embodiment of the present invention；
Fig. 5 is the structural representation of another kind ONU disclosed in the embodiment of the present invention；
Fig. 6 is a kind of structural representation of OLT disclosed in the embodiment of the present invention；
Fig. 7 is the structural representation of another kind OLT disclosed in the embodiment of the present invention；
Fig. 8 is a kind of schematic diagram of authorised channel disclosed in the embodiment of the present invention；
Fig. 9 is the schematic diagram of the second code block after a kind of extension disclosed in the embodiment of the present invention；
Figure 10 is the schematic diagram of another kind of Frame disclosed in the embodiment of the present invention；
Figure 11 is a kind of schematic diagram of amended first code block disclosed in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
The embodiment of the invention discloses a kind of data transmission method and equipment, for improving data transmission efficiency.Hereinafter divide
It is not described in detail.
A kind of data transmission method and equipment disclosed in embodiment for a better understanding of the present invention, below first to the present invention
The network architecture that embodiment is used is described.Fig. 1 is referred to, Fig. 1 is that a kind of network architecture is shown disclosed in the embodiment of the present invention
It is intended to.As shown in figure 1, the network architecture can include OLT101 and at least two ONU102.OLT101 and at least two
Can be communicated by optical-fibre channel between ONU102, the wavelength of the light that can be transmitted on the optical fiber in each light channel is not
Together, an ONU102 can be simultaneously by multiple optical-fibre channels to OLT101 transmission datas.Wherein, OLT101 is to ONU102 directions
Signal be downstream signal, signal from ONU102 to OLT101 directions be upward signal.In PON system, uplink and downlink signals are equal
Wavelength-division multiplex can be adopted, but up-downgoing multiplex mode can be with difference.Such as, downstream signal is continuous mode, and data flow will not
Interrupt；And upward signal is burst mode, specific time period, OLT101 can only receive the number that an ONU102 sends
According to.Fig. 2 is referred to, Fig. 2 is a kind of Ethernet passive optical network (Ethernet PON, EPON) system disclosed in the embodiment of the present invention
The schematic diagram of uplink burst data frame structure in system.As shown in Fig. 2 the Frame can include successively synchronous code (Sync
Pattern), burst delimiter (Burst Delimiter, BD), FEC code and burst terminates (End Of Burst, EOB).
Wherein, synchronous code is used to realize data and clock synchronization of the OLT to ONU that BD to be used to identify the original position of burst packets, FEC code
Word is used for transmission data, and EOB is used to identify the end of burst packets.Data structure shown in Fig. 2 includes N number of FEC code, its
In, coming and include in after BD first FEC code the first code block and the second code block, the first code block is used for from the same of scrambler
Step, the second code block is used for the demarcation and synchronization of RS.First code block and the second code block are the code block of 66 bits.Wherein, code block
Length is less than code word, and a code word can include at least one code block.
Based on the network architecture shown in Fig. 1, Fig. 3 is referred to, Fig. 3 is a kind of transmission side data disclosed in the embodiment of the present invention
The schematic flow sheet of method.Wherein, the data transmission method is the angle from OLT101 and ONU102 describing.As shown in figure 3,
The data transmission method may comprise steps of.
301st, when presence needs the transmission data for being transferred to OLT, ONU sends the bandwidth for carrying desire bandwidth to OLT
Request.
In the present embodiment, when presence needs the transmission data for being transferred to OLT in ONU, ONU is by according to the appearance of transmission data
Amount is determined for transmitting the transmission data desire bandwidth, and the bandwidth request for carrying desire bandwidth is sent to OLT.Wherein, band
Width request can be sent to OLT in the way of report (report) message by the arbitrary passage between ONU and OLT, it is also possible to
Otherwise by the arbitrary passage between ONU and OLT to be sent to OLT.
302nd, each authorizes logical during OLT sends to ONU and includes at least two authorised channels and at least two authorised channels
The mandate initial time in road and the uplink scheduling authorization of mandate time span.
In the present embodiment, OLT receives the carrying after the bandwidth request of desire bandwidth of ONU transmissions, will according to ONU with
The occupancy situation of each passage, the bandwidth of each passage and desire bandwidth are defined as at least two awarding for ONU mandates between OLT
The mandate initial time of each authorised channel and mandate time span in power passage and this at least two authorised channel, and will bag
Include the mandate initial time of each authorised channel and mandate in this at least two authorised channel and this at least two authorised channel
The uplink scheduling authorization of time span is sent to ONU.When the bandwidth of each passage is identical, can first according to the band of each passage
Wide and desire bandwidth determines the number of channels for needing to authorize for ONU, afterwards according to number of channels and the occupancy feelings of each passage
Condition is defined as the authorised channel of ONU mandates, and determines the mandate initial time of authorised channel and authorize time span, can be by elder generation
Idle channel grant is to ONU.Fig. 8 is referred to, Fig. 8 is a kind of schematic diagram of authorised channel disclosed in the embodiment of the present invention.Such as
Shown in Fig. 8, in order to improve uplink bandwidth by passage binding, should there is lap between authorised channel, so as to
In the part that authorised channel is overlapped, uplink bandwidth reaches maximum.
Illustrate, when it is 100G that the bandwidth of each passage is 25G, desire bandwidth, can first according to 100G and 25G
It is determined that needing 4 authorised channels, 4 idle at first passages awarding for OUN is chosen in the passage between OLT and ONU afterwards
Power passage.It is idle at first in the passage between OLT and ONU to lead to when the bandwidth of each passage is different, desire bandwidth is 100G
Road is passage 1, a width of 50G of band of passage 1, and the passage of second free time is passage 2, a width of 25G of band of passage 2, the 3rd sky
Not busy passage is passage 3, and passage 1, passage 2 and passage 3 can be licensed to ONU by a width of 25G of band of passage 3.
303rd, ONU is according to the mandate initial time of transmission data and each authorised channel and authorizes time span, build with
One-to-one at least two Frame of at least two authorised channels.
In the present embodiment, ONU receive OLT transmission including at least two authorised channels and at least two authorised channels
In each authorised channel mandate initial time and after authorizing the uplink scheduling authorization of time span, will according to transmission data and
The mandate initial time and mandate time span of each authorised channel, will build Frame to obtain at least for each authorised channel
Two Frames, each Frame includes at least one code word at least two Frames, and each Frame carries sequence
Number, serial number is used to indicate the position of first code word in the code word that each Frame includes in transmission data, when each
When Frame carries two or more code words, the code word that each Frame includes is continuous in transmission data, i.e., at least
The code word that two Frames include is continuous in transmission frame, for example：When the quantity of Frame is 2, what the first Frame included
Serial number of the code word in transmission data is followed successively by 1,3,5, serial number of the code word that the second Frame includes in transmission data
It is followed successively by 2,4,6,7, although serial number of the code word that each Frame includes in transmission data may be discontinuous, but the first number
Serial No. 1-7 of the serial number of all of code word included according to frame and the second Frame in transmitting data frame, is continuous.
Wherein, the code word that at least two Frames include can be FEC code, or other code words or other code blocks, such as 66b codes
Block or 64b code blocks.Additionally, the length of code word that at least two Frames include must be identical.
In the present embodiment, when the quantity of authorised channel is 2, first in corresponding first Frame of the first authorised channel
Individual code word can be first code word in transmission data, when the length of code word is more than the mandate initial time of the first authorised channel
Can carry and the mandate initial time of the second authorised channel between when being the length of data, the second authorised channel corresponding second
First code word in Frame is second code word in transmission data, when the length of code word authorizes logical less than or equal to first
Can carry between the mandate initial time in road and the mandate initial time of the second authorised channel when being the length of data, the first number
Second code word according to frame is second code word in transmission data.Wherein, the mandate initial time morning of the first authorised channel
In the mandate initial time of the second authorised channel.
In the present embodiment, based on the data frame structure shown in Fig. 2, each Frame carry for indicating each Frame
Including code word in position of first code word in transmission data serial number, can carry in the second code block, additionally,
Second code block can also carry the number of codewords of at least one code word that LLID and each Frame include, LLID is used to identify
ONU, i.e. mark data frame be generated by that ONU or transmission.Fig. 9 is referred to, Fig. 9 is one disclosed in the embodiment of the present invention
Plant the schematic diagram of the second code block after extension.As shown in figure 9, the 0th and the 7th byte carries respectively starting and ending character, the 1st He
2nd byte is used to carry number of codewords of the bytes of LLID, the 3rd and the 4th for carrying FEC code, and the 5th and the 6th byte is used to hold
Carry the serial number of first FEC code in Frame.
In the present embodiment, based on the data frame structure shown in Fig. 2, each Frame carry for indicating each Frame
Including code word in position of first code word in transmission data serial number, can carry in the first code block, due to
The effect of the first code block and the second code block is respectively the synchronization for completing synchronization and RS from scrambler, and the second code block is in actual applications
It is also nonsensical, therefore, it can delete the second code block in Frame, and according to existing standard from scrambler multinomial,
Complete scrambling code synchronization and only need to 58 bits, remaining 8 bits are also unnecessary, therefore, it is possible to use 8 ratios in the first code block
Spy carries the serial number of first code word in Frame.Figure 10 is referred to, Figure 10 is another kind of number disclosed in the embodiment of the present invention
According to the schematic diagram of frame.As shown in Figure 10, the first code block is only included in amended Frame, and does not include the second code block, 1 represents
The serial number of first code word in transmission data in the corresponding Frame of first authorised channel, 3 represent the second authorised channels pair
The serial number of first code word in transmission data in the Frame answered, 4 represent in the corresponding Frame of the first authorised channels the
The serial number of one code word in transmission data.Figure 11 is referred to, Figure 11 is a kind of amended disclosed in the embodiment of the present invention
The schematic diagram of the first code block.As shown in figure 11, amended first code block carries at least one yard that each Frame includes
The serial number SN of first code word in transmission data in word.It can be seen that, because first code word only needs to include the first code block, no
Need to include the second code block, it is thus possible to increase the digit of first code word carrying data, such that it is able to improve data transfer speed
Rate.Additionally, the first code block can also carry the number of codewords of at least one code word that LLID and each Frame include,
In the present embodiment, the first code block and the second code block are the implementations of existing 10G EPON standards, are subsequently being marked
In accurate implementation, if it is possible to have other modes to replace the function of the first code block and the second code block, then can be with
Dispense the two code blocks.The FEC code type that at present standard is adopted for RS (255,223), the 66b64b's adopted in 10G EPON
Line coding mode, FEC encoder is entered every time is all integer 66b code blocks, and the first two bit of each 66b code block is
Synchronous head, only 01 and 10 two kind of value, therefore only need to protect 1 bit, each 66b code block is into FEC encoder
All it is 65 bits.When each FEC code coding is carried out, 27 65 bit code blocks still reach to the payload needed less than code word, also
0 of the bit of polishing 29 before each code word is needed, 223 bytes then can be just gathered enough, FEC codings are carried out.FEC codings are completed
Afterwards, the 0 of 29 bits of polishing can't be sent by physical layer, but directly be deleted, and receiving terminal is when row decoding is entered
The 0 of the bit of first polishing 29 is required for, complete FEC code is gathered enough and is entered row decoding again.Therefore, each Frame carry for referring to
Show the serial number of position of first code word in the code word that each Frame includes in transmission data, can carry at each
Polishing position in Frame.For example, when the code word that each Frame includes is FEC code, can be in 29 bit polishing positions
Take out a part to use as first FEC code serial number, ONU is by the serial number of first FEC code filling (padding)
Mode be placed in the polishing position of 29 bits, FEC encoded after again 29 bit polishing positions deletion after be sent to by physical layer
OLT.When OLT is decoded, the 0 of the bit of first polishing 29 enters row decoding, and polishing position is with first code word when sending data due to ONU
Serial number, it is wrong pattern that decoder will detect polishing position, and carry out error correction to the pattern.As long as it is in FEC
Within the scope of the error correction of pattern, OLT can just recover first code word sequence row number of ONU, and can utilize the serial number
Carry out the restructuring of binding business.ONU in addition to it can carry the serial number of first code word, can also be carried in polishing position
The information such as the number of codewords of at least one code word that LLID, each Frame include.In due to deleting first code word
One code block and the second code block, therefore, the digit that first code word carries data is increased, such that it is able to improve data transfer speed
Rate.
304th, at least two Frames are sent to OLT by ONU by corresponding authorised channel respectively.
305th, OLT obtains the serial number carried in each Frame, and according to the serial number for obtaining at least two data
Frame is recombinated to obtain transmission data.
In the present embodiment, OLT is received after at least two Frames of ONU transmissions, will be obtained each Frame and be carried
Serial number, afterwards according to obtain serial number at least two Frames are recombinated, to obtain transmission data.Work as Frame
Quantity be 2, and the serial number that carries of the first Frame less than the serial number that the second Frame is carried when, the in transmission data
One code word is first code word in the first Frame, when the serial number that the second Frame is carried is and the first Frame is carried
Serial number adjacent next serial number when, second in transmission data code word is first code in the second Frame
Word, when the next serial number that the serial number that the serial number that the second Frame is carried is not with the first Frame is carried is adjacent,
Second code word in transmission data is second code word in the first Frame.
In the present embodiment, when each Frame also carry LLID and including at least one code word number of codewords when,
At least two Frames can be recombinated according to the serial number, LLID and number of codewords that obtain, to obtain the biography of ONU transmission
Transmission of data.Wherein, the serial number of at least one of each Frame code word is not necessarily continuous, for example：Transmission data
Include 8 code words altogether, first Frame includes that 1,6 code words, second Frame include 2,5 code words, the 3rd Frame
Including 3,8 code words, fourth data frame includes 4,7 code words.
In the data transmission method described by Fig. 3, ONU receive that OLT sends including at least two authorised channels and
The uplink scheduling authorization of the mandate initial time of each authorised channel and mandate time span at least two authorised channels, according to
The mandate initial time and mandate time span of transmission data and each authorised channel, corresponds with least two authorised channels
At least two Frames, and at least two Frames are sent to into OLT by corresponding authorised channel respectively.At least two numbers
Include at least one code word according to each Frame in frame, each Frame carries serial number, what each Frame was carried
Serial number is used to indicate the position of first code word in the code word that each Frame includes in transmission data, when each data
When frame includes two or more code words, the code word that each Frame includes is continuous in transmission data, therefore, it can lead to
So that OLT realizes the restructuring at least two Frames by crossing the serial number of first code word that each Frame is carried, and
Because each Frame only needs to carry serial number of the code word in transmission data, therefore, reduce in Frame and carry
Serial number quantity, so that more data can be transmitted in Frame, so as to improve data transmission efficiency.Wherein, transmit
Data are that ONU needs to be transferred to the data of OLT.
Based on the network architecture shown in Fig. 1, Fig. 4 is referred to, Fig. 4 is a kind of structure of ONU disclosed in the embodiment of the present invention
Schematic diagram.As shown in figure 4, the ONU can include：
Receiving unit 401, for receiving the uplink scheduling authorization of OLT transmissions, the uplink scheduling authorization includes at least two
The mandate initial time of each authorised channel and mandate time span in authorised channel and at least two authorised channels；
Construction unit 402, the uplink scheduling authorization for being received according to transmission data and receiving unit 401 include each
The mandate initial time and mandate time span of authorised channel, builds and at least two authorised channels one-to-one at least two
Frame, each Frame at least two Frames includes at least one code word, and each Frame carries serial number,
First code word that the serial number that each Frame is carried is used to indicating in the code word that each Frame includes is in transmission data
Position, when each Frame includes two or more code words, the code word that each Frame includes is in transmission data
In it is continuous；
Transmitting element 403, at least two Frames for construction unit 402 to be built authorize logical by corresponding respectively
Road is sent to OLT.
Used as a kind of possible embodiment, first in each Frame code word includes the first code block and second code
Block, the first code block is used for the synchronization from scrambler, and the second code block is used for the demarcation and synchronization of RS；
Each Frame carries serial number to be included：
The second code block in each Frame carries serial number.
Used as a kind of possible embodiment, first in each Frame code word includes the first code block, the first code block
For from the synchronization of scrambler；
Each Frame carries serial number to be included：
The first code block in each Frame carries serial number.
Used as a kind of possible embodiment, each Frame carries serial number to be included：
Polishing position in each Frame carries serial number.
As a kind of possible embodiment, each Frame also carry LLID and including at least one code word code
Number of words, LLID is used to identify ONU.
Used as a kind of possible embodiment, the code word that each Frame includes can be FEC code.
In the ONU described by Fig. 4, ONU receives awarding including at least two authorised channels and at least two for OLT transmissions
Power passage in each authorised channel mandates initial time and authorize time span uplink scheduling authorization, according to transmission data with
The mandate initial time and mandate time span of each authorised channel, one-to-one with least two authorised channels at least two
Frame, and at least two Frames are sent to into OLT by corresponding authorised channel respectively.It is every at least two Frames
Individual Frame includes at least one code word, and each Frame carries serial number, and the serial number that each Frame is carried is used for
Position of first code word in the code word that each Frame includes in transmission data is indicated, when each Frame includes two
During individual or more code word, the code word that each Frame includes is continuous in transmission data, therefore, it can by each data
So that OLT realizes the restructuring at least two Frames by the serial number of first code word that frame is carried, and due to every number
Only need to carry serial number of the code word in transmission data according to frame, therefore, reduce the serial number of carrying in Frame
Quantity, so that more data can be transmitted in Frame, so as to improve data transmission efficiency.Wherein, transmission data is that ONU is needed
It is transferred to the data of OLT.
Based on the network architecture shown in Fig. 1, Fig. 5 is referred to, Fig. 5 is the knot of another kind ONU disclosed in the embodiment of the present invention
Structure schematic diagram.As shown in figure 5, the ONU can include：Processor 501, memorizer 502, transceiver 503 and bus 504.Wherein：
Bus 504, for realizing the connection between these components；
Transceiver 503, for receiving the uplink scheduling authorization of OLT transmissions, the uplink scheduling authorization can include at least two
The mandate initial time of each authorised channel and mandate time span in individual authorised channel and at least two authorised channels；
Be stored with batch processing code in memorizer 502, and processor 501 is used to call the program stored in memorizer 502
Code performs following operation：
According to transmission data and the mandate initial time and mandate time span of each authorised channel, build and at least two
One-to-one at least two Frame of authorised channel, each Frame at least two Frames includes at least one yard
Word, each Frame carries serial number, and the serial number that each Frame is carried is used to indicate the code word that each Frame includes
In position of first code word in transmission data, when each Frame includes two or more code words, per number
The code word included according to frame is continuous in transmission data；
Transceiver 503, is additionally operable to at least two Frames to be sent to OLT by corresponding authorised channel respectively.
Used as a kind of possible embodiment, first in each Frame code word includes the first code block and second code
Block, the first code block is used for the synchronization from scrambler, and the second code block is used for the demarcation and synchronization of RS；
Each Frame carries serial number to be included：
The second code block in each Frame carries serial number.
Used as a kind of possible embodiment, first in each Frame code word includes the first code block, the first code block
For from the synchronization of scrambler；
Each Frame carries serial number to be included：
The first code block in each Frame carries serial number.
Used as a kind of possible embodiment, each Frame carries serial number to be included：
Polishing position in each Frame carries serial number.
As a kind of possible embodiment, each Frame also carry LLID and including at least one code word code
Number of words, LLID is used to identify ONU.
Used as a kind of possible embodiment, the code word that each Frame includes can be FEC code.
In the ONU described by Fig. 5, ONU receives awarding including at least two authorised channels and at least two for OLT transmissions
Power passage in each authorised channel mandates initial time and authorize time span uplink scheduling authorization, according to transmission data with
The mandate initial time and mandate time span of each authorised channel, one-to-one with least two authorised channels at least two
Frame, and at least two Frames are sent to into OLT by corresponding authorised channel respectively.It is every at least two Frames
Individual Frame includes at least one code word, and each Frame carries serial number, and the serial number that each Frame is carried is used for
Position of first code word in the code word that each Frame includes in transmission data is indicated, when each Frame includes two
During individual or more code word, the code word that each Frame includes is continuous in transmission data, therefore, it can by each data
So that OLT realizes the restructuring at least two Frames by the serial number of first code word that frame is carried, and due to every number
Only need to carry serial number of the code word in transmission data according to frame, therefore, reduce the serial number of carrying in Frame
Quantity, so that more data can be transmitted in Frame, so as to improve data transmission efficiency.Wherein, transmission data is that ONU is needed
It is transferred to the data of OLT.
Based on the network architecture shown in Fig. 1, Fig. 6 is referred to, Fig. 6 is a kind of structure of OLT disclosed in the embodiment of the present invention
Schematic diagram.As shown in fig. 6, the OLT can include：
Receiving unit 601, for receiving at least two Frames that ONU is sent by least two authorised channels, at least
Each Frame in two Frames includes at least one code word, and each Frame carries serial number, and serial number is used for
Indicate position of first code word in the code word that each Frame includes in transmission data；
Acquiring unit 602, for the serial number carried in each Frame for obtaining the reception of receiving unit 601；
Recomposition unit 603, the serial number for being obtained according to acquiring unit 602 receiving unit 601 is received at least two
Individual Frame is recombinated, and to obtain transmission data, when the quantity of Frame is 2, and the serial number that the first Frame is carried is little
When the serial number that the second Frame is carried, first in transmission data code word is first code word in the first Frame,
When the next serial number that the serial number that the serial number that the second Frame is carried is with the first Frame is carried is adjacent, number is transmitted
Second code word according in is first code word in the second Frame, when the serial number that the second Frame is carried is not and first
During the adjacent next serial number of serial number that Frame is carried, second in transmission data code word is in the first Frame
Second code word.
Used as a kind of possible embodiment, first in each Frame code word includes the first code block and second code
Block, the first code block is used for the synchronization from scrambler, and the second code block is used for the demarcation and synchronization of RS；
Each Frame carries serial number to be included：
The second code block in each Frame carries serial number.
Used as a kind of possible embodiment, first in each Frame code word includes the first code block, the first code block
For from the synchronization of scrambler；
Each Frame carries serial number to be included：
The first code block in each Frame carries serial number.
Used as a kind of possible embodiment, each Frame carries serial number to be included：
Polishing position in each Frame carries serial number.
As a kind of possible embodiment, each Frame also carry LLID and including at least one code word code
Number of words, LLID is used to identify ONU；
Recomposition unit 603, specifically for being entered at least two Frames according to the serial number, LLID and number of codewords that obtain
Row restructuring, to obtain the transmission data of ONU transmission.
Used as a kind of possible embodiment, the code word that each Frame includes can be FEC code.
In the OLT described by Fig. 6, OLT receives at least two data that ONU is sent by least two authorised channels
Frame, each Frame at least two Frames includes at least one code word, and each Frame carries serial number, sequence
Number for indicating the position of first code word in the code word that each Frame includes in transmission data, each Frame is obtained
The serial number of carrying, and according to the serial number for obtaining at least two Frames are recombinated to obtain transmission data, work as data
The quantity of frame be 2, and the first Frame carry serial number less than the second Frame carry serial number when, in transmission data
First code word is first code word in the first Frame, when the serial number that the second Frame is carried is taken with the first Frame
During the adjacent next serial number of the serial number of band, second in transmission data code word is first code in the second Frame
Word, when the next serial number that the serial number that the serial number that the second Frame is carried is not with the first Frame is carried is adjacent,
Second code word in transmission data is second code word in the first Frame.Because each Frame only carries what is included
The serial number of first code word in transmission data at least one code word, therefore, reduce the serial number carried in Frame
Quantity, so that more data can be transmitted in Frame, so as to improve data transmission efficiency.Wherein, transmission data OLT energy
Enough data received from ONU.
Based on the network architecture shown in Fig. 1, Fig. 7 is referred to, Fig. 7 is the knot of another kind OLT disclosed in the embodiment of the present invention
Structure schematic diagram.As shown in fig. 7, the OLT can include：Processor 701, memorizer 702, transceiver 703 and bus 704.Wherein：
Bus 704, for realizing the connection between these components；
Transceiver 703, for receiving at least two data that optical network unit ONU is sent by least two authorised channels
Frame, each Frame at least two Frames includes at least one code word, and each Frame carries serial number, sequence
Number for indicating the position of first code word in the code word that each Frame includes in transmission data；
Be stored with batch processing code in memorizer 702, and processor 701 is used to call the program stored in memorizer 702
Code performs following operation：
Obtain the serial number carried in each Frame；
Serial number according to obtaining is recombinated at least two Frames, to obtain transmission data, when the number of Frame
When measuring the serial number carried for the 2, and first Frame less than the serial number that the second Frame is carried, first in transmission data
Code word is first code word in the first Frame, when the serial number that the second Frame is carried is the sequence with the carrying of the first Frame
During the adjacent next serial number of row number, second in transmission data code word is first code word in the second Frame, when
When the serial number that second Frame is carried is not the next serial number adjacent with the serial number of the first Frame carrying, number is transmitted
Second code word according in is second code word in the first Frame.
Used as a kind of possible embodiment, first in each Frame code word includes the first code block and second code
Block, the first code block is used for the synchronization from scrambler, and the second code block is used for the demarcation and synchronization of RS；
Each Frame carries serial number to be included：
The second code block in each Frame carries serial number.
Used as a kind of possible embodiment, first in each Frame code word includes the first code block, the first code block
For from the synchronization of scrambler；
Each Frame carries serial number to be included：
The first code block in each Frame carries serial number.
Used as a kind of possible embodiment, each Frame carries serial number to be included：
Polishing position in each Frame carries serial number.
As a kind of possible embodiment, each Frame also carry LLID and including at least one code word code
Number of words, LLID is used to identify ONU；
Processor 701 is recombinated according to the serial number for obtaining at least two Frames, is included with obtaining transmission data：
Serial number, LLID and number of codewords according to obtaining is recombinated at least two Frames, to obtain ONU transmission
Transmission data.
Used as a kind of possible embodiment, the code word that each Frame includes can be FEC code.
In the OLT described by Fig. 7, OLT receives at least two data that ONU is sent by least two authorised channels
Frame, each Frame at least two Frames includes at least one code word, and each Frame carries serial number, sequence
Number for indicating the position of first code word in the code word that each Frame includes in transmission data, each Frame is obtained
The serial number of carrying, and according to the serial number for obtaining at least two Frames are recombinated to obtain transmission data, work as data
The quantity of frame be 2, and the first Frame carry serial number less than the second Frame carry serial number when, in transmission data
First code word is first code word in the first Frame, when the serial number that the second Frame is carried is taken with the first Frame
During the adjacent next serial number of the serial number of band, second in transmission data code word is first code in the second Frame
Word, when the next serial number that the serial number that the serial number that the second Frame is carried is not with the first Frame is carried is adjacent,
Second code word in transmission data is second code word in the first Frame.Because each Frame only carries what is included
The serial number of first code word in transmission data at least one code word, therefore, reduce the serial number carried in Frame
Quantity, so that more data can be transmitted in Frame, so as to improve data transmission efficiency.Wherein, transmission data OLT energy
Enough data received from ONU.
The embodiment of the invention also discloses a kind of readable storage medium storing program for executing, the readable storage medium storing program for executing stores ONU or OLT to be used for
Perform the program code of the data transmission method shown in Fig. 3.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Completed with instructing the hardware of correlation by program, the program can be stored in a computer-readable recording medium, storage
Medium can include：Flash disk, read only memory (read-only memory, ROM), random access device (random access
Memory, RAM), disk or CD etc..
Although here combines each embodiment, and invention has been described, however, implementing the present invention for required protection
During, those skilled in the art are by checking the accompanying drawing, disclosure and appended claims, it will be appreciated that and it is real
Other changes of the existing open embodiment.In the claims, " including " (comprising) word be not excluded for other composition
Part or step, "a" or "an" is not excluded for multiple situations.Single processor or other units can realize claim
In some functions enumerating.Mutually different has been recited in mutually different dependent some measures, it is not intended that these are arranged
Apply to combine and produce good effect.
Data transmission method disclosed in the embodiment of the present invention and equipment are described in detail above, it is used herein
Specific case is set forth to the principle and embodiment of the present invention, and the explanation of above example is only intended to help and understands this
The method and its core concept of invention；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, concrete
Will change in embodiment and range of application, in sum, this specification content should not be construed as to the present invention's
Limit.
Claims (24)
1. a kind of data transmission method, it is characterised in that methods described is applied to optical network unit ONU, including：
The uplink scheduling authorization that optical line terminal OLT sends is received, the uplink scheduling authorization includes at least two authorised channels
And at least two authorised channel mandate initial time of each authorised channel and authorize time span；
According to the mandate initial time of transmission data and each authorised channel and authorize time span, build with it is described at least
One-to-one at least two Frame of two authorised channels, each Frame at least two Frame include to
A few code word, described each Frame carries serial number, and the serial number is used to indicate what described each Frame included
Position of first code word in code word in the transmission data, when described each Frame includes two or more codes
During word, the code word that described each Frame includes is continuous in the transmission data；
At least two Frame is sent to into the OLT by corresponding authorised channel respectively.
2. method according to claim 1, it is characterised in that first code word in described each Frame includes first
Code block and the second code block, first code block is used for the synchronization from scrambler, and second code block is used for the demarcation of reconciliation sublayer RS
And synchronization；
Described each Frame carries serial number to be included：
Second code block in described each Frame carries serial number.
3. method according to claim 1, it is characterised in that first code word in described each Frame includes first
Code block, first code block is used for the synchronization from scrambler；
Described each Frame carries serial number to be included：
First code block in described each Frame carries serial number.
4. method according to claim 1, it is characterised in that described each Frame carries serial number to be included：
Polishing position in described each Frame carries serial number.
5. the method according to any one of claim 1-4, it is characterised in that described each Frame also carries logic chain
Line LLID and including at least one code word number of codewords, the LLID be used for identify the ONU.
6. the method according to any one of claim 1-4, it is characterised in that the code word that described each Frame includes is front
To error correction FEC code.
7. a kind of data transmission method, it is characterised in that methods described is applied to optical line terminal OLT, including：
Receive at least two Frames that optical network unit ONU is sent by least two authorised channels, at least two number
Include at least one code word according to each Frame in frame, described each Frame carries serial number, and the serial number is used
Position of first code word in the code word that each Frame described in indicating includes in transmission data；
Obtain the serial number carried in described each Frame；
Serial number according to obtaining is recombinated at least two Frame, to obtain the transmission data, works as Frame
Quantity be 2, and the first Frame carry serial number less than the second Frame carry serial number when, in the transmission data
First code word be first code word in first Frame, when the serial number that second Frame is carried is and institute
When stating the adjacent next serial number of serial number of the first Frame carrying, second in the transmission data code word is described
First code word in second Frame, when the serial number that second Frame is carried is carried with first Frame
Serial number adjacent next serial number when, second in the transmission data code word is in first Frame
Two code words.
8. method according to claim 7, it is characterised in that first code word in described each Frame includes first
Code block and the second code block, first code block is used for the synchronization from scrambler, and second code block is used for the demarcation of reconciliation sublayer RS
And synchronization；
Described each Frame carries serial number to be included：
Second code block in described each Frame carries serial number.
9. method according to claim 7, it is characterised in that first code word in described each Frame includes first
Code block, first code block is used for the synchronization from scrambler；
Described each Frame carries serial number to be included：
First code block in described each Frame carries serial number.
10. method according to claim 7, it is characterised in that described each Frame carries serial number to be included：
Polishing position in described each Frame carries serial number.
11. methods according to any one of claim 7-10, it is characterised in that described each Frame also carries logic
Link identification LLID and including at least one code word number of codewords, the LLID be used for identify the ONU；
It is described at least two Frame is recombinated according to the serial number for obtaining, included with obtaining the transmission data：
Serial number, the LLID and the number of codewords according to obtaining is recombinated at least two Frame, to obtain
Obtain the transmission data of the ONU transmission.
12. methods according to any one of claim 7-10, it is characterised in that the code word that described each Frame includes is
Forward error correction FEC code.
13. a kind of optical network unit ONUs, it is characterised in that include：
Receiving unit, for receiving the uplink scheduling authorization of optical line terminal OLT transmission, the uplink scheduling authorization is included at least
The mandate initial time of each authorised channel and mandate time are long in two authorised channels and at least two authorised channel
Degree；
Construction unit, each mandate that the uplink scheduling authorization for being received according to transmission data and the receiving unit includes is logical
The mandate initial time and mandate time span in road, builds at least two number one-to-one with least two authorised channel
According to frame, each Frame at least two Frame includes at least one code word, and described each Frame is carried
Serial number, first code word that the serial number is used to indicating in the code word that described each Frame includes is in the transmission data
In position, when described each Frame includes two or more code words, the code word that described each Frame includes
It is continuous in the transmission data；
Transmitting element, at least two Frames for the construction unit to be built are sent respectively by corresponding authorised channel
To the OLT.
14. ONU according to claim 13, it is characterised in that first code word in described each Frame includes the
One code block and the second code block, first code block is used for the synchronization from scrambler, and second code block is used for determining for reconciliation sublayer RS
Boundary and synchronization；
Described each Frame carries serial number to be included：
Second code block in described each Frame carries serial number.
15. ONU according to claim 13, it is characterised in that first code word in described each Frame includes the
One code block, first code block is used for the synchronization from scrambler；
Described each Frame carries serial number to be included：
First code block in described each Frame carries serial number.
16. ONU according to claim 13, it is characterised in that described each Frame carries serial number to be included：
Polishing position in described each Frame carries serial number.
17. ONU according to any one of claim 13-16, it is characterised in that described each Frame also carries logic
Link identification LLID and including at least one code word number of codewords, the LLID be used for identify the ONU.
18. ONU according to any one of claim 13-16, it is characterised in that the code word that described each Frame includes is
Forward error correction FEC code.
19. a kind of optical line terminal OLTs, it is characterised in that include：
Receiving unit, for receiving at least two Frames that optical network unit ONU is sent by least two authorised channels, institute
Stating each Frame at least two Frames includes at least one code word, and described each Frame carries serial number,
Position of first code word that the serial number is used to indicating in the code word that described each Frame includes in transmission data；
Acquiring unit, for obtain the receiving unit receive described in the serial number that carries in each Frame；
Recomposition unit, the serial number for being obtained according to the acquiring unit receiving unit is received described at least two
Frame is recombinated, to obtain the transmission data, when the quantity of Frame is 2, and the serial number that the first Frame is carried
During the serial number carried less than the second Frame, first in the transmission data code word is the in first Frame
One code word, when the serial number that second Frame is carried is adjacent next of serial number that carries with first Frame
During individual serial number, second code word in the transmission data is first code word in second Frame, when described
It is described when the serial number that two Frames are carried is not the next serial number adjacent with the serial number of first Frame carrying
Second code word in transmission data is second code word in first Frame.
20. OLT according to claim 19, it is characterised in that first code word in described each Frame includes the
One code block and the second code block, first code block is used for the synchronization from scrambler, and second code block is used for determining for reconciliation sublayer RS
Boundary and synchronization；
Described each Frame carries serial number to be included：
Second code block in described each Frame carries serial number.
21. OLT according to claim 19, it is characterised in that first code word in described each Frame includes the
One code block, first code block is used for the synchronization from scrambler；
Described each Frame carries serial number to be included：
First code block in described each Frame carries serial number.
22. OLT according to claim 19, it is characterised in that described each Frame carries serial number to be included：
Polishing position in described each Frame carries serial number.
23. OLT according to any one of claim 19-22, it is characterised in that described each Frame also carries logic
Link identification LLID and including at least one code word number of codewords, the LLID be used for identify the ONU；
The recomposition unit, specifically for the serial number according to acquisition, the LLID and the number of codewords to described at least two
Individual Frame is recombinated, to obtain the transmission data of the ONU transmission.
24. OLT according to any one of claim 19-22, it is characterised in that the code word that described each Frame includes is
Forward error correction FEC code.
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| US11546088B2 (en) | 2017-09-21 | 2023-01-03 | China Mobile Communication Co., Ltd Research Institute | Check code processing method, electronic device and storage medium |
| CN108650561A (en) * | 2018-04-13 | 2018-10-12 | 烽火通信科技股份有限公司 | The system and method that Codeword is managed in 100G EPON |
| CN108650561B (en) * | 2018-04-13 | 2020-10-09 | 烽火通信科技股份有限公司 | System and method for managing code in 100G EPON |
| CN112313890A (en) * | 2018-09-24 | 2021-02-02 | 华为技术有限公司 | Multi-rate Optical Network Unit (ONU) activation |
| US11356755B2 (en) | 2018-09-24 | 2022-06-07 | Huawei Technologies Co., Ltd. | Multiple-rate optical network unit (ONU) activation |
| CN112313890B (en) * | 2018-09-24 | 2022-10-04 | 华为技术有限公司 | Multi-rate Optical Network Unit (ONU) activation |
| WO2021093464A1 (en) * | 2019-11-12 | 2021-05-20 | 华为技术有限公司 | Data recombination method and apparatus |
| US12034654B2 (en) | 2019-11-12 | 2024-07-09 | Huawei Technologies Co., Ltd. | Data reassembly method and apparatus |
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| CN106685591B (en) | 2020-06-02 |
| CN111800225A (en) | 2020-10-20 |
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