CN107682112A - A kind of control method of Ethernet data transmission - Google Patents
A kind of control method of Ethernet data transmission Download PDFInfo
- Publication number
- CN107682112A CN107682112A CN201710736757.0A CN201710736757A CN107682112A CN 107682112 A CN107682112 A CN 107682112A CN 201710736757 A CN201710736757 A CN 201710736757A CN 107682112 A CN107682112 A CN 107682112A
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- Prior art keywords
- packet loss
- receiving terminal
- transmitting terminal
- data
- packets
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
-
- 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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/203—Details of error rate determination, e.g. BER, FER or WER
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Communication Control (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
A kind of control method of Ethernet data transmission, transmitting terminal send data by uplink data channels to receiving terminal, and receiving terminal, to transmitting terminal send feedback information, is specifically comprised the following steps by downlink feedback information channel：Transmitting terminal judges whether to receive the correcting data error control coding requirement of receiving terminal；If transmitting terminal receives the correcting data error control coding requirement of receiving terminal transmission, if then transmitting terminal, which forms IP packets progress forward error correction coding, sends the correcting data error control coding requirement that data transmitting terminal does not receive receiving terminal transmission, transmitting terminal is using IP packets as transmission data；Transmitting terminal sends data with uniform time interval to receiving terminal.Present invention reduces the data redundancy that forward error correction coding mechanism is brought in conventional method, improve the utilization rate of network bandwidth, data and feedback information are transmitted respectively by two path channels simultaneously, are reduced delay and shake in data transfer, are improved the quality of network data real-time Transmission.
Description
Technical field
The invention belongs to field of data transmission, and in particular to a kind of control method of Ethernet data transmission.
Background technology
Network Development makes rapid progress, with the emergence of new opplication on IP network, service quality of the people to IP network
It it is also proposed new requirement.The service quality of network（QOS）It is mainly reflected in the parameters such as network bandwidth, delay, shake and packet loss
On, in order to be avoided as much as the loss of data of burst and undue delay, effective means need to be used to check error in data simultaneously
Mistake can be corrected, and then recovers the quality that data ensure network data transmission.
Prior art is all the technology for using controlling transmission mistake in simplex system mostly, smaller in channel bit error rate
When, transmitting terminal sends the coding that can correct mistake, and receiving terminal can be corrected in transmission automatically according to the code word and coding rule that receive
Mistake, but such a mode adds the redundancy of packet, reduces the efficiency of transmission, wastes a part of bandwidth, and
With the raising of error correcting capability, expense is increased, adds the complexity of compiling decoding apparatus；Other are also derived in the prior art
Technology, just continue to send data after receiving receiving terminal feedback information adjustment redundancy such as transmitting terminal, but propagation delay time can be increased, trembled
Dynamic and data redundancy.
This is the deficiencies in the prior art, therefore, for drawbacks described above of the prior art, there is provided a kind of Ethernet data passes
Defeated control method, is necessary.
The content of the invention
It is an object of the present invention to it is directed to above-mentioned traditional simplex system data packet redundant or transmission delay, shake
The defects of, there is provided a kind of control method of Ethernet data transmission, to solve above-mentioned technical problem.
To achieve the above object, the present invention provides following technical scheme：
A kind of control method of Ethernet data transmission, transmitting terminal send data to receiving terminal by uplink data channels, received
End, to transmitting terminal send feedback information, is specifically comprised the following steps by downlink feedback information channel：
Transmitting terminal judges whether to receive the correcting data error control coding requirement of receiving terminal；Transmitting terminal is according to receiving terminal from downstream feedback
The feedback information that information channel is sent judges whether to receive correcting data error control coding requirement；
If transmitting terminal receives the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal IP packets are carried out before to entangling
Miscoding, which is formed, sends data；
If transmitting terminal does not receive the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is using IP packets as transmission
Data；
Transmitting terminal sends data with uniform time interval to receiving terminal；Transmitting terminal is sent by uplink data channels to receiving terminal
Data.
Further, if transmitting terminal does not receive the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is by IP
Packet, which is used as, sends data,
Now, receiving terminal parses to the IP packets received, determines whether packet loss and calculates packet loss；
If having packet loss and packet loss exceeding setting packet loss threshold value, receiving terminal sends correcting data error control coding to transmitting terminal will
Ask.Data are sent among receiving terminal from transmitting terminal will pass through gateway, and gateway can carry out CRC to the data received
To judge whether wrong generation, gateway directly loses the packet comprising the error code without being transmitted to when finding and having error code
Receiving terminal, the data that receiving terminal receives just only occur the situation of whole packet loss without some bit in a bag
The situation of error, so receiving terminal packet loss is exactly the bit error rate in indirect reflection data transfer.
Further, receiving terminal parses to the IP packets received, determines whether packet loss and calculates packet loss；
If without packet loss, or, there is packet loss and packet loss is no more than setting packet loss threshold value, then receiving terminal is not sent to transmitting terminal
Correcting data error controls coding requirement.
Further, if transmitting terminal receives the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is by IP numbers
Forward error correction coding is carried out according to bag and forms transmission data, while decoding of the transmitting terminal to receiving terminal transmission forward error correction coding is led to
Know.
Further, if transmitting terminal receives the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is by IP numbers
Forward error correction coding is carried out according to bag and forms transmission data, while decoding of the transmitting terminal to receiving terminal transmission forward error correction coding is led to
Know,
Now, receiving terminal decodes to the data received, obtains IP packets, receiving terminal IP packets to receiving again
Parsed, determine whether packet loss and calculate packet loss；
If having packet loss and packet loss exceeding setting packet loss threshold value, receiving terminal sends correcting data error control coding to transmitting terminal will
Ask.
Further, receiving terminal decodes to the data received, obtain IP packets, and receiving terminal is again to receiving
IP packets are parsed, and are determined whether packet loss and are calculated packet loss；
If without packet loss, or, there is packet loss and packet loss is no more than setting packet loss threshold value, then receiving terminal is not sent to transmitting terminal
Correcting data error controls coding requirement.
Further, receiving terminal parses to the IP packets received, obtains message label, receiving terminal is according to message
The value of label determines whether packet loss and calculates packet loss.
Further, each IP packets include a message label, and receiving terminal is by the message label sequence of reception and about
Fixed message label sequence compares, the difference of the number and the number of the message label sequence of reception of the message label sequence of agreement
Value is number of dropped packets, and the ratio of number of dropped packets and the number of the message label sequence of agreement is packet loss.
Further, if transmitting terminal receives the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is by IP numbers
Forward error correction coding is carried out according to bag and forms transmission data, is specifically comprised the following steps：
If transmitting terminal receives the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is according to the correcting data error control received
Coding requirement grade processed, IP packets are subjected to corresponding forward error correction coding and form transmission data.
Further, receiving terminal is decoded to obtain IP packets to the data received, and receiving terminal is again to IP packets
Parsed, determine whether packet loss and calculate packet loss；
If there is packet loss, receiving terminal packet loss threshold range grade according to corresponding to packet loss judges whether before needing to send to entangling
Miscoding and corresponding forward error correction coding grade, receiving terminal sends corresponding correcting data error control coding to transmitting terminal will
Ask；
If without packet loss, receiving terminal does not send correcting data error control coding requirement to transmitting terminal.
Packet loss is higher, then needs more high level forward error correction coding, the rank of forward error correction coding and forward error correction
The check bit number of coding is relevant, and the check bit number of forward error correction coding is more, then the error correcting capability of forward error correction coding is got over
By force, corresponding packet loss will reduce.
The beneficial effects of the present invention are：
Present invention reduces the data redundancy that forward error correction coding mechanism is brought in conventional method, improves the utilization of network bandwidth
Rate, while data and feedback information are transmitted respectively by two path channels, delay and shake in data transfer are reduced, is improved
The quality of network data real-time Transmission.
In addition, design principle of the present invention is reliable, and it is simple in construction, there is very extensive application prospect.
As can be seen here, the present invention is compared with prior art, with prominent substantive distinguishing features and significantly progressive, its implementation
Beneficial effect be also obvious.
Brief description of the drawings
The data that Fig. 1 is the present invention send schematic diagram；
Fig. 2 is the method flow diagram of embodiments of the invention；
Fig. 3 is the packet loss schematic diagram of the embodiment of the present invention；
Fig. 4 is packet loss schematic diagram corresponding with correcting data error control coding requirement grade.
Embodiment：
To enable the purpose of the present invention, feature, advantage more obvious and understandable, it is embodied below in conjunction with the present invention
Accompanying drawing in example, the technical scheme in the present invention is clearly and completely described.
As shown in figure 1, the present invention provides a kind of control method of Ethernet data transmission, transmitting terminal is believed by upstream data
Road sends data to receiving terminal, receiving terminal by downlink feedback information channel to transmitting terminal send feedback information, specifically include as
Lower step：
Transmitting terminal judges whether to receive the correcting data error control coding requirement of receiving terminal；
If transmitting terminal receives the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is according to the correcting data error control received
Coding requirement grade processed, IP packets carried out into corresponding forward error correction coding formed to send data, at the same transmitting terminal to
Receiving terminal sends the decoded notification of forward error correction coding；Now, receiving terminal is decoded to obtain IP data to the data received
Bag, receiving terminal parse to IP packets again, determine whether packet loss and calculate packet loss；If there is packet loss, receiving terminal root
Judge whether to need to send forward error correction coding and corresponding forward error correction according to packet loss threshold range grade corresponding to packet loss
Encoding levels, receiving terminal send corresponding correcting data error to transmitting terminal and control coding requirement；If without packet loss, receiving terminal
Correcting data error control coding requirement is not sent to transmitting terminal；
If transmitting terminal does not receive the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is using IP packets as transmission
Data, now, receiving terminal parse to the IP packets received, determine whether packet loss and calculate packet loss；Lost if having
Wrap, then receiving terminal packet loss threshold range grade according to corresponding to packet loss judges whether to need to send forward error correction coding and phase
The forward error correction coding grade answered, receiving terminal send corresponding correcting data error to transmitting terminal and control coding requirement；If no
Packet loss, then receiving terminal is not to transmitting terminal transmission correcting data error control coding requirement；
No matter whether transmitting terminal receives the correcting data error control coding requirement of receiving terminal, receiving terminal enters to the IP packets received
Row parsing, obtains message label, and receiving terminal determines whether packet loss according to the value of message label and calculates packet loss；Each IP numbers
According to a message label is included, receiving terminal compares the message label sequence of reception with the message label sequence arranged, about
The difference of the number of fixed message label sequence and the number of the message label sequence received is number of dropped packets, number of dropped packets and agreement
The ratio of number of message label sequence be packet loss.
Embodiment 1 provides a kind of control method of Ethernet data transmission as depicted in figs. 1 and 2,
Transmitting terminal sends IP packets by uplink data channels to receiving terminal；
Transmitting terminal judges whether to receive the correcting data error control coding requirement of receiving terminal；
If transmitting terminal receives the correcting data error control coding requirement of receiving terminal transmission, forward error correction coding is carried out to IP packets
Afterwards as transmission data；
If transmitting terminal does not receive the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is using IP packets as transmission
Data；
Transmitting terminal sends data with uniform time interval to receiving terminal；
After receiving terminal receives data, judge whether to need the decoding of forward error correction data control coding；
If desired forward error correction data controls the decoding of coding, then receiving terminal is decoded to obtain IP data to the data received
Bag；
If not needing the decoding of forward error correction data control coding, receiving terminal receives IP packets；
Receiving terminal parses to IP packets；
Receiving terminal determines whether packet loss according to the analysis result of IP packets and calculates packet loss, is judged whether according to packet loss
Need to send correcting data error control coding requirement to transmitting terminal；
Receiving terminal is by downlink feedback information channel to transmitting terminal send feedback information.
Receiving terminal parses to the IP packets received in above-described embodiment 1, obtains message mark as shown in Figure 3
Label, receiving terminal determine whether packet loss according to the value of message label and calculate packet loss；Each IP packets include a message
Label, receiving terminal by the message label sequence 1,2,3,6,7,8 of reception with agreement message label sequence 1,2,3,4,5,6,7,8
Compare, it is easy to judge two message droppings of No. 4 messages and No. 5 messages, packet loss t=2/8=25%.
If transmitting terminal receives the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal root in above-described embodiment 1
Coding requirement grade is controlled according to the correcting data error received, IP packets are carried out into corresponding forward error correction coding forms transmission
Data；Packet loss is higher, then needs more high level forward error correction coding, the rank and forward error correction coding of forward error correction coding
Check bit number it is relevant, the check bit number of forward error correction coding is more, then the error correcting capability of forward error correction coding is stronger, phase
The packet loss answered will reduce；IP packets include information bit and check bit, and supervision bits number is more, and the forward directions of data is from error correction
Ability is stronger, but the proportion of information bit declines the waste that can cause bandwidth, so in the case where ensureing that packet loss is relatively low,
Sent with less check bit, as shown in figure 4, corresponding 1 check bit of 5% packet loss, 10% corresponding 2 supervision of packet loss
Position, 15% corresponding 3 check bits of packet loss, 20% corresponding 4 check bits of packet loss, 25% corresponding 5 supervision of packet loss
Position, 30% corresponding 6 check bits of packet loss.
Embodiments of the invention are illustrative and not restrictive, and above-described embodiment is only to aid in understanding the present invention, because
This is every by those skilled in the art's technique according to the invention the invention is not restricted to the embodiment described in embodiment
Other embodiments that scheme is drawn, also belong to the scope of protection of the invention.
Claims (10)
- A kind of 1. control method of Ethernet data transmission, it is characterised in thatTransmitting terminal sends data by uplink data channels to receiving terminal, and receiving terminal is by downlink feedback information channel to transmitting terminal Send feedback information, specifically comprise the following steps：Transmitting terminal judges whether to receive the correcting data error control coding requirement of receiving terminal；If transmitting terminal receives the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal IP packets are carried out before to entangling Miscoding, which is formed, sends data；If transmitting terminal does not receive the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is using IP packets as transmission Data；Transmitting terminal sends data with uniform time interval to receiving terminal.
- A kind of 2. control method of Ethernet data transmission as described in right 1, it is characterised in thatIf transmitting terminal does not receive the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is using IP packets as transmission Data,Now, receiving terminal parses to the IP packets received, determines whether packet loss and calculates packet loss；If having packet loss and packet loss exceeding setting packet loss threshold value, receiving terminal sends correcting data error control coding to transmitting terminal will Ask.
- A kind of 3. control method of Ethernet data transmission as claimed in claim 2, it is characterised in thatReceiving terminal parses to the IP packets received, determines whether packet loss and calculates packet loss；If without packet loss, or, there is packet loss and packet loss is no more than setting packet loss threshold value, then receiving terminal is not sent to transmitting terminal Correcting data error controls coding requirement.
- 4. the control method of a kind of Ethernet data transmission as claimed in claim 1, it is characterised in that connect if transmitting terminal receives The correcting data error that receiving end is sent controls coding requirement, then IP packets are carried out forward error correction coding and form transmission number by transmitting terminal According to, while transmitting terminal sends the decoded notification of forward error correction coding to receiving terminal.
- 5. the control method of a kind of Ethernet data transmission as claimed in claim 4, it is characterised in that connect if transmitting terminal receives The correcting data error that receiving end is sent controls coding requirement, then IP packets are carried out forward error correction coding and form transmission number by transmitting terminal According to, while transmitting terminal sends the decoded notification of forward error correction coding to receiving terminal,Now, receiving terminal decodes to the data received, obtains IP packets, receiving terminal IP packets to receiving again Parsed, determine whether packet loss and calculate packet loss；If having packet loss and packet loss exceeding setting packet loss threshold value, receiving terminal sends correcting data error control coding to transmitting terminal will Ask.
- 6. the control method of a kind of Ethernet data transmission as claimed in claim 5, it is characterised in that receiving terminal is to receiving Data decoded, obtain IP packets, receiving terminal parses to the IP packets received again, determines whether packet loss And calculate packet loss；If without packet loss, or, there is packet loss and packet loss is no more than setting packet loss threshold value, then receiving terminal is not sent to transmitting terminal Correcting data error controls coding requirement.
- 7. the control method of a kind of Ethernet data transmission as described in claim 2 or 5, it is characterised in that receiving terminal docks The IP packets received are parsed, and obtain message label, and receiving terminal determines whether packet loss and meter according to the value of message label Calculate packet loss.
- A kind of 8. control method of Ethernet data transmission as claimed in claim 7, it is characterised in that each IP packet bags A message label is included, receiving terminal compares the message label sequence of reception with the message label sequence arranged, the report of agreement The difference of the number of literary sequence label and the number of the message label sequence received is number of dropped packets, number of dropped packets and the message arranged The ratio of the number of sequence label is packet loss.
- 9. the control method of a kind of Ethernet data transmission as claimed in claim 1, it is characterised in that connect if transmitting terminal receives The correcting data error that receiving end is sent controls coding requirement, then IP packets are carried out forward error correction coding and form transmission number by transmitting terminal According to specifically comprising the following steps：If transmitting terminal receives the correcting data error control coding requirement of receiving terminal transmission, transmitting terminal is according to the correcting data error control received Coding requirement grade processed, IP packets are subjected to corresponding forward error correction coding and form transmission data.
- 10. the control method of a kind of Ethernet data transmission as claimed in claim 9, it is characterised in that receiving terminal is to receiving To data decoded to obtain IP packets, receiving terminal parses to IP packets again, determines whether packet loss and calculating Packet loss；If there is packet loss, receiving terminal packet loss threshold range grade according to corresponding to packet loss judges whether before needing to send to entangling Miscoding and corresponding forward error correction coding grade, receiving terminal sends corresponding correcting data error control coding to transmitting terminal will Ask；If without packet loss, receiving terminal does not send correcting data error control coding requirement to transmitting terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710736757.0A CN107682112A (en) | 2017-08-24 | 2017-08-24 | A kind of control method of Ethernet data transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710736757.0A CN107682112A (en) | 2017-08-24 | 2017-08-24 | A kind of control method of Ethernet data transmission |
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| CN107682112A true CN107682112A (en) | 2018-02-09 |
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| CN201710736757.0A Pending CN107682112A (en) | 2017-08-24 | 2017-08-24 | A kind of control method of Ethernet data transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108684050A (en) * | 2018-04-12 | 2018-10-19 | 京信通信系统（中国）有限公司 | Adjusting method, device, computer equipment and the storage medium of forward error correction function |
| CN112235209A (en) * | 2019-07-25 | 2021-01-15 | 北京天德科技有限公司 | Intra-network control of virtual circuits |
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| EP1152602A3 (en) * | 2000-05-05 | 2004-03-24 | Thomson Licensing S.A. | Adaptative channel equalizer |
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Application publication date: 20180209 |