WO2023005313A1 - 链路监控方法及装置 - Google Patents
链路监控方法及装置 Download PDFInfo
- Publication number
- WO2023005313A1 WO2023005313A1 PCT/CN2022/090977 CN2022090977W WO2023005313A1 WO 2023005313 A1 WO2023005313 A1 WO 2023005313A1 CN 2022090977 W CN2022090977 W CN 2022090977W WO 2023005313 A1 WO2023005313 A1 WO 2023005313A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- code
- processing
- outer code
- decoding
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 410
- 238000012544 monitoring process Methods 0.000 title claims abstract description 106
- 238000012545 processing Methods 0.000 claims description 936
- 230000008569 process Effects 0.000 claims description 257
- 238000012937 correction Methods 0.000 claims description 256
- 238000013075 data extraction Methods 0.000 claims description 83
- 238000012806 monitoring device Methods 0.000 claims description 16
- 238000004590 computer program Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 abstract description 125
- 238000010586 diagram Methods 0.000 description 42
- 230000003287 optical effect Effects 0.000 description 21
- 230000001427 coherent effect Effects 0.000 description 13
- 238000004891 communication Methods 0.000 description 12
- 208000011580 syndromic disease Diseases 0.000 description 11
- 238000001514 detection method Methods 0.000 description 9
- 230000002441 reversible effect Effects 0.000 description 9
- 239000013307 optical fiber Substances 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000013473 artificial intelligence Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
- H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
- H03M13/1105—Decoding
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/63—Joint error correction and other techniques
-
- 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
- H04L1/0042—Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape
-
- 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
- H04L1/0045—Arrangements at the receiver 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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0057—Block codes
-
- 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
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0064—Concatenated codes
- H04L1/0065—Serial concatenated codes
-
- 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
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/14—Channel dividing arrangements, i.e. in which a single bit stream is divided between several baseband channels and reassembled at the receiver
Definitions
- the present application relates to the technical field of data transmission, in particular to a link monitoring method and device.
- optical communication systems and optical transport networks are developing towards high-capacity and ultra-high speed.
- the optical signal transmitted in the optical communication system and the optical transmission network will be distorted due to some reasons during the transmission process, and with the increase of the Ethernet transmission rate, the transmission bit error rate will increase accordingly.
- Forward error correction coding (forward error correction, FEC) is used to correct the transmitted data, which can solve the transmission error and restore the original data sent by the sender from the received data.
- FEC decoding can also assist in link monitoring.
- link monitoring refers to monitoring the quality of a link used for data transmission.
- the present application provides a link monitoring method and device.
- the application can effectively monitor the link quality.
- the technical scheme that this application provides is as follows:
- the present application provides a link monitoring method, the method includes: receiving the data encoded by the outer code; performing inner code encoding on the data encoded by the outer code, and outputting the data encoded by the inner code; The data encoded by the outer code is decoded by the outer code; according to the situation of decoding the data encoded by the outer code, the quality of the link used to transmit the data encoded by the outer code is determined.
- the data encoded by the outer code by receiving the data encoded by the outer code, the data encoded by the outer code is encoded by the inner code and output, and at the same time, the data encoded by the outer code is decoded by the outer code, and according to the When the data encoded by the external code is decoded by the external code, the quality of the link used to transmit the data encoded by the external code can be determined, and the quality of the link can be effectively monitored.
- the link monitoring method since the data encoded by the outer code needs to be encoded by the inner code and output, the data encoded by the outer code also needs to be decoded by the outer code, and it is determined according to the situation of the outer code decoding Link quality, and these two processes will be executed in two ways, so that the process of decoding the data with the outer code and determining the link quality will not affect the process of encoding the data with the inner code and outputting it, so it will not be affected by The process of performing external code decoding and determining the link quality additionally increases the overall transmission delay of data, so that the link monitoring method can be applied to more transmission scenarios, especially for transmission scenarios with lower requirements on transmission delay .
- the processing module at the originating end can determine the quality of the link according to the number of symbol errors in the codeword sequence. Then, according to the situation of performing external code decoding on the data encoded by the external code, the quality of the link used to transmit the data encoded by the external code is determined, including: according to the sequence of P1 codewords in the data encoded by the external code In the case of outer code decoding, determine the number of symbol errors in each of the P1 codeword sequences, where P1 is a positive integer; determine the quality of the link according to the number of symbol errors in the P1 codeword sequences.
- the processing module at the originating end may determine the quality of the link used to transmit the data encoded by the outer code according to the number of symbol errors in one or more (namely, P1) codeword sequences in the data encoded by the outer code. At this time, the processing module at the originating end needs to determine the number of symbol errors for each codeword sequence in the P1 codeword sequences respectively. And when the quality of the link is determined according to the number of error symbols of multiple codeword sequences in the data encoded by the outer code, because the number of error symbols of multiple codeword sequences can more comprehensively reflect the impact of the codeword sequence on the link. influence, and can monitor the link quality more accurately.
- the quality of the link used to transmit the data encoded by the outer code is determined according to the outer code decoding of the data encoded by the outer code, including: according to the data encoded by the outer code In the case where the middle codeword sequence is decoded by the outer code, determine the indication parameter corresponding to the codeword sequence; determine the quality of the link according to the indication parameters corresponding to the P2 codeword sequences in the data encoded by the outer code, where P2 is a positive integer.
- the number of error symbols of multiple codeword sequences can more comprehensively reflect the impact of the codeword sequence on the link , which can monitor the link quality more accurately.
- the specific implementation manners of the data decoded by the external code are different.
- the following situations are illustrated as examples:
- the data decoded by the outer code is data subjected to processing including encoding by the outer code and deskewing.
- the processing module at the sending end may first perform deviation correction processing on the data encoded by the outer code, and then perform outer code decoding on the data subjected to the deviation correction processing.
- the quality of the link used to transmit the data encoded by the outer code is determined.
- the data used to determine the quality of the link is data that has undergone deviation correction processing, the accuracy of the quality of the link determined according to the data can be effectively guaranteed.
- the data decoded by the outer code is data subjected to processing including outer code encoding, channel reordering processing, and first deinterleaving.
- the sending end processing module receives the data encoded by the outer code, it can first perform deviation correction processing and channel reordering processing on the data encoded by the outer code, and then perform the first deinterleaving process on the data after channel reordering, and then The data subjected to the first deinterleaving process is subjected to outer code decoding.
- the data to be decoded by the outer code is data that has undergone encoding including outer code and data extraction.
- the processing module at the originating end may first perform data extraction on the data coded by the external code, and then perform external code decoding on the data extracted by the data.
- the data rate obtained after data extraction can be lower than the data rate of the inner code encoding performed by the transmitting processing module, and the speed reduction of the signal after deviation correction processing can be realized , enabling low power monitoring.
- the specific implementation manners of the data encoded by the inner code are different.
- the following situations are used as examples to illustrate:
- the data encoded by the inner code is data encoded by the outer code.
- the processing module at the sending end may directly encode the data encoded by the outer code with the inner code.
- the data encoded by the inner code is data subjected to processing including encoding by the outer code and deskewing.
- the data encoded by the inner code is the data including the outer code encoding and skew correction processing
- the data decoded by the outer code is the data including the outer code encoding and skew correction processing
- the skew correction processing can be received at the sending end processing module
- the data that has undergone the deviation correction process can be processed in two ways, one way is encoded by the sending end processing module and output, and the other way is outer coded by the sending end processing module decoding.
- the data encoded by the inner code is data that has undergone processing including outer code encoding, deskew processing and channel reordering.
- the output process of the originating processing module The data encoded by the internal code is sorted according to the order specified by the channel reordering, which can make the performance test of the sending end processing module, different sending end processing modules of the same type have the same output data under the same input data, which is beneficial to the sending end processing module. Performance testing of processing modules.
- the first interleaving process needs to be performed on the data before the inner code encoding is performed on the data, since the data after the channel reordering can be sorted according to the order specified by the channel reordering, the order of the data in the first interleaving process is fixed, The design of the first interleaving processing unit can be facilitated.
- the data encoded by the inner code is data that has undergone a process including outer code encoding, skew correction processing, channel reordering processing, and first deinterleaving processing.
- the data processed by deviation correction, channel reordering and first deinterleaving can be divided into two paths, one path is used for inner code encoding, and the other path is used for outer code decoding.
- the data encoded by the inner code is data including outer code encoding and data processing
- the data processing includes: first interleaving processing.
- the processing module at the sending end may first perform deviation correction processing on the data encoded by the outer code, then perform the first interleaving process on the data after the deviation correction processing, and then perform the first interleaving process on the data that has undergone the first interleaving process Perform inner code encoding.
- the processing module at the sending end can perform deviation correction processing on the data encoded by the outer code on the one hand; An inner code encoding is performed on the interleaved data.
- the present application provides a link monitoring method, the method comprising: receiving data encoded by an outer code and an inner code; performing inner code decoding on the data encoded by an outer code and an inner code, and outputting The data decoded by the inner code; the data decoded by the inner code is decoded by the outer code; according to the situation of the data decoded by the inner code, it is determined to be used for the transmission of the data encoded by the outer code and the inner code The quality of the link for the encoded data.
- the link monitoring method by receiving the data encoded by the outer code and the inner code, the data encoded by the outer code and the inner code are decoded by the inner code and output, and the data decoded by the inner code are simultaneously Outer code decoding, and according to the situation of outer code decoding on the data decoded by the inner code, determine the quality of the link used to transmit the data encoded by the outer code and the inner code, and the quality of the link can be determined effective monitoring.
- the link monitoring method since the data decoded by the inner code needs to be output, the data decoded by the inner code also needs to be decoded by the outer code, and the link quality is determined according to the decoding of the outer code. And these two processes will be executed in two ways, so that the process of decoding the data with the outer code and determining the link quality will not affect the process of outputting the decoded data with the inner code, so it will not be affected by the decoding of the outer code.
- the process of coding and determining the link quality additionally increases the overall transmission delay of data, so that the link monitoring method can be applied to more transmission scenarios, especially for transmission scenarios with lower requirements on transmission delay.
- the receiving end processing module can determine the quality of the link according to the number of symbol errors in the codeword sequence. Then, according to the situation of performing outer code decoding on the data decoded by the inner code, determine the quality of the link used to transmit the data encoded by the outer code and the inner code, including: according to the data decoded by the inner code In the case of P3 codeword sequences performing outer code decoding, determine the number of symbol errors in each codeword sequence in the P3 codeword sequences, and P3 is a positive integer; according to the number of symbol errors in the P3 codeword sequences, determine the chain quality of the road.
- the receiving end processing module can determine the link used to transmit the data encoded by the outer code and the inner code according to the number of symbol errors in one or more (i.e. P3) codeword sequences in the data decoded by the inner code quality. At this time, the receiving end processing module needs to determine the number of symbol errors for each codeword sequence in the P3 codeword sequences respectively. And when the quality of the link is determined according to the number of error symbols of multiple codeword sequences in the data decoded by the inner code, since the number of error symbols of multiple codeword sequences can more comprehensively reflect the influence of the codeword sequence on the link The impact of the link quality can be monitored more accurately.
- the quality of the link used to transmit the data encoded by the outer code and the inner code is determined according to the outer code decoding of the data decoded by the inner code, including: according to the When the codeword sequence in the data decoded by the inner code is decoded by the outer code, determine the indication parameter corresponding to the codeword sequence; according to the indication parameters corresponding to the P4 codeword sequences in the data decoded by the inner code, determine the link
- the quality of , P4 is a positive integer.
- the number of error symbols of multiple codeword sequences can more comprehensively reflect the influence of the codeword sequence on the link. influence, and can monitor the link quality more accurately.
- the specific implementation manners of the data decoded by the external code are different.
- the following situations are used as examples to illustrate:
- the data decoded by the outer code is data subjected to processing including decoding by the inner code and deskewing.
- the processing module at the receiving end may first perform deviation correction processing on the data decoded by the inner code, and then perform outer code decoding on the data subjected to the deviation correction processing.
- the data decoded by the outer code is data that has undergone processing including inner code decoding, channel reordering processing, and first deinterleaving.
- the receiving end processing module receives the data decoded by the inner code, it can first perform channel reordering processing on the data decoded by the inner code, and then perform the first deinterleaving process on the data after the channel reordering processing, and then Perform outer code decoding on the data that has undergone the first deinterleaving process.
- the data decoded by the outer code is data that has been processed by including inner code decoding and first deinterleaving .
- the data to be decoded by the outer code is data that has undergone decoding including inner code and data extraction.
- the processing module at the receiving end may first perform data extraction on the data decoded by the inner code, and then perform decoding on the data extracted by the outer code.
- the amount of data after data extraction is reduced compared to the data before data extraction, the data rate obtained after data extraction can be lower than the data rate of the inner code encoding performed by the transmitting processing module, and the speed reduction of the signal after deviation correction processing can be realized , enabling low power monitoring.
- the data decoded by the inner code is data processed
- the data decoded by the outer code is data processed inversely including inner code decoding and data processing.
- the data processing includes: first In the interleaving process, the inverse process includes: second deinterleaving process.
- the processing module at the receiving end may perform the second deinterleaving process on the data decoded by the inner code first, and then perform the outer code decoding on the data decoded by the second deinterleave.
- the inverse processing can be executed after the receiving end processing module receives the data decoded by the inner code, and after performing the inverse processing, the inversely processed data can be divided into two paths, and one path is output by the receiving end processing module , and the other channel is decoded by the receiving end processing module.
- the outputted data is inner code decoded data.
- the receiving-end processing module performs inner code decoding on the data encoded by the outer code and the inner code, it can directly output the data decoded by the inner code.
- the data decoded by the inner code is the data processed by the data
- the output data is the data that has undergone inverse processing including inner code decoding and data processing
- the data processing includes: first interleaving processing
- the reverse processing includes: second deinterleaving processing.
- the receiving end processing module receives the data encoded by the outer code and the inner code, it can first decode the data encoded by the outer code and the inner code, and then perform the second decoding on the data decoded by the inner code.
- the second deinterleaving process and then output the data that has undergone the second deinterleaving process.
- the present application provides a link monitoring device, which includes: an input unit for receiving data encoded by an outer code; an encoding unit for encoding the data encoded by an outer code; The unit is used to output the data encoded by the inner code; the decoding unit is used to decode the data encoded by the outer code; the decoding unit is also used to decode the data encoded by the outer code according to the outer code In the case of an outer code, determines the quality of the link used to transmit the data encoded by the outer code.
- the decoding unit is specifically configured to: determine the number of error symbols of each codeword sequence in the P1 codeword sequences according to the situation of performing outer code decoding on the P1 codeword sequences in the data encoded by the outer code
- the number, P1 is a positive integer; according to the number of symbol errors in the P1 codeword sequence, the quality of the link is determined.
- the decoding unit is specifically used to: determine the indication parameter corresponding to the codeword sequence according to the situation of performing outer code decoding on the codeword sequence in the data encoded by the outer code; according to the P2 in the data encoded by the outer code
- the indication parameters corresponding to the codeword sequences determine the quality of the link, and P2 is a positive integer.
- the data decoded by the outer code is data that has undergone encoding and skew correction processing.
- the data decoded by the outer code is the data that has undergone the processing including outer code encoding, channel reordering processing and first deinterleaving processing.
- the data decoded by the outer code is the data including outer code encoding and data extraction.
- the data encoded by the inner code is data encoded by the outer code.
- the data encoded by the inner code is data that has been processed by including outer code encoding and skew correction.
- the data encoded by the inner code is data that has undergone processes including outer code encoding, skew correction processing, and channel reordering.
- the data encoded by the inner code is data that has undergone outer code encoding, skew correction processing, channel reordering processing, and first deinterleaving processing.
- the data encoded by the inner code includes outer code encoding and data processing, and the data processing includes: first interleaving processing.
- the present application provides a link monitoring device, which includes: an input unit for receiving data encoded by an outer code and an inner code; a first decoding unit for receiving data encoded by an outer code and an inner code The data encoded by the inner code is decoded by the inner code; the output unit is used to output the data decoded by the inner code; the second decoding unit is used to decode the data decoded by the inner code; the second decoding The code unit is further configured to determine the quality of the link used to transmit the data encoded by the outer code and the coded by the inner code according to the situation of decoding the data decoded by the inner code by the outer code.
- the second decoding unit is specifically configured to: determine the value of each codeword sequence in the P3 codeword sequences according to the outer code decoding of the P3 codeword sequences in the data decoded by the inner code
- the number of symbol errors, P3 is a positive integer; the quality of the link is determined according to the number of symbol errors in the P3 codeword sequences.
- the second decoding unit is specifically configured to: determine the indication parameter corresponding to the codeword sequence according to the situation of performing outer code decoding on the codeword sequence in the data decoded by the inner code;
- the indication parameters corresponding to the P4 codeword sequences in the data determine the quality of the link, and P4 is a positive integer.
- the data decoded by the outer code is data that has undergone processing including inner code decoding and skew correction.
- the data decoded by the outer code is data that has been processed by including inner code decoding and first deinterleaving.
- the data decoded by the outer code is the data that has undergone processing including inner code decoding, channel reordering processing, and first deinterleaving processing.
- the data decoded by the outer code is the data including decoding by the inner code and data extraction.
- the data decoded by the inner code is data processed
- the data decoded by the outer code is data processed inversely including inner code decoding and data processing.
- the data processing includes: first interleaving processing
- the reverse processing includes: second deinterleaving processing.
- the output data is data decoded by an inner code.
- the data decoded by the inner code is the data processed by the data
- the output data is the data that has undergone inverse processing including inner code decoding and data processing.
- the data processing includes: first interleaving processing, and the inverse processing includes: : the second de-interleaving process.
- the present application provides a computer device, including a memory and a processor, the memory stores program instructions, and the processor executes the program instructions to execute the first aspect, the second aspect of the present application and any possible implementation thereof method provided in .
- the present application provides a computer-readable storage medium.
- the computer-readable storage medium is a non-volatile computer-readable storage medium.
- the computer-readable storage medium includes program instructions. When the program instructions are stored on a computer device During operation, the computer device is made to execute the method provided in the first aspect, the second aspect and any possible implementation manners of the present application.
- the present application provides a computer program product containing instructions.
- the computer program product runs on a computer, the computer executes the computer program provided in the first aspect, the second aspect of the present application, and any possible implementation thereof. Methods.
- FIG. 1 is a schematic diagram of an implementation environment involved in a link monitoring method provided in an embodiment of the present application
- FIG. 2 is a schematic diagram of a data transmission process in the implementation environment shown in FIG. 1 provided in the embodiment of the present application;
- FIG. 3 is a flowchart of a link monitoring method applied to an originating processing module provided by an embodiment of the present application
- FIG. 4 is a schematic structural diagram of an originating processing module provided by an embodiment of the present application.
- FIG. 5 is a schematic structural diagram of another originating processing module provided by an embodiment of the present application.
- FIG. 6 is a schematic structural diagram of another originating processing module provided by an embodiment of the present application.
- FIG. 7 is a schematic structural diagram of another originating processing module provided by an embodiment of the present application.
- FIG. 8 is a schematic structural diagram of another originating processing module provided by an embodiment of the present application.
- FIG. 9 is a schematic structural diagram of another origin processing module provided by the embodiment of the present application.
- FIG. 10 is a schematic structural diagram of another originating processing module provided by an embodiment of the present application.
- Fig. 11 is a schematic structural diagram of another origin processing module provided by the embodiment of the present application.
- Fig. 12 is a schematic structural diagram of another originating processing module provided by an embodiment of the present application.
- FIG. 13 is a schematic structural diagram of another originating processing module provided by the embodiment of the present application.
- FIG. 14 is a schematic structural diagram of another originating processing module provided by an embodiment of the present application.
- FIG. 15 is a schematic structural diagram of another originating processing module provided by the embodiment of the present application.
- Fig. 16 is a schematic diagram of data extraction provided by the embodiment of the present application.
- Fig. 17 is a flow chart of a method for determining the quality of a link by the originating processing module according to the decoding of the outer code provided by the embodiment of the present application;
- Fig. 18 is a flow chart of another method for determining the quality of the link by the originating processing module according to the decoding of the outer code provided by the embodiment of the present application;
- FIG. 19 is a flow chart of a link monitoring method applied to a receiving end processing module provided by an embodiment of the present application.
- FIG. 20 is a schematic structural diagram of a receiving end processing module provided by an embodiment of the present application.
- FIG. 21 is a schematic structural diagram of another receiving end processing module provided by the embodiment of the present application.
- FIG. 22 is a schematic structural diagram of another receiving end processing module provided by an embodiment of the present application.
- Fig. 23 is a schematic structural diagram of another receiving end processing module provided by the embodiment of the present application.
- FIG. 24 is a schematic structural diagram of another receiving end processing module provided by an embodiment of the present application.
- Fig. 25 is a schematic structural diagram of another receiving end processing module provided by the embodiment of the present application.
- FIG. 26 is a schematic structural diagram of another receiving end processing module provided by an embodiment of the present application.
- Fig. 27 is a schematic structural diagram of another receiving end processing module provided by the embodiment of the present application.
- Fig. 28 is a schematic structural diagram of another receiving end processing module provided by the embodiment of the present application.
- Fig. 29 is a schematic structural diagram of another receiving end processing module provided by the embodiment of the present application.
- FIG. 30 is a schematic structural diagram of another receiving end processing module provided by an embodiment of the present application.
- Fig. 31 is a schematic structural diagram of another receiving end processing module provided by the embodiment of the present application.
- FIG. 32 is a schematic structural diagram of another receiving end processing module provided by an embodiment of the present application.
- Fig. 33 is a flow chart of a method for determining the quality of a link by the receiving end processing module according to the decoding of the external code provided by the embodiment of the present application;
- Fig. 34 is a flow chart of another method for determining the quality of a link by the receiving end processing module according to the decoding of the external code provided by the embodiment of the present application;
- Fig. 35 is a flow chart of another link monitoring method applied to the originating processing module provided by the embodiment of the present application.
- Fig. 36 is a flowchart of another link monitoring method applied to the receiving end processing module provided by the embodiment of the present application.
- Fig. 37 is a schematic diagram of an application scenario where the link monitoring method provided by the embodiment of the present application is applicable to an application scenario where the originating optical module has a single-wavelength 800G coherent line interface and the originating device has a 2 ⁇ 400G interface;
- Fig. 38 is another schematic diagram of the link monitoring method provided by the embodiment of the present application, which is applicable to the application scenario where the transmitting optical module has a single-wavelength 800G coherent line interface and the transmitting device has a 2 ⁇ 400G interface;
- Fig. 39 is another schematic diagram of the link monitoring method provided by the embodiment of the present application, which is applicable to the application scenario where the transmitting optical module has a single-wavelength 800G coherent line interface, and the transmitting device has a 2 ⁇ 400G interface;
- Figure 40 is a schematic diagram of the link monitoring method provided by the embodiment of the present application, which is applicable to an application scenario where the receiving end optical module has a single-wavelength 800G coherent line interface, and the receiving end device has a 2 ⁇ 400G interface;
- Figure 41 is another schematic diagram of the link monitoring method provided by the embodiment of the present application, which is applicable to the application scenario where the receiving end optical module has a single-wavelength 800G coherent line interface, and the receiving end device has a 2 ⁇ 400G interface;
- Figure 42 is another schematic diagram of the link monitoring method provided by the embodiment of the present application, which is applicable to the application scenario where the receiving end optical module has a single-wavelength 800G coherent line interface, and the receiving end device has a 2 ⁇ 400G interface;
- Figure 43 is a schematic diagram of an application scenario where the link monitoring method provided by the embodiment of the present application is applicable to an application scenario where the transmitting optical module has a single-wavelength 800G coherent line interface and the transmitting device has a 4 ⁇ 200G interface;
- Fig. 44 is a schematic diagram of an application scenario where the link monitoring method provided by the embodiment of the present application is applicable to the receiving end optical module having a single-wavelength 800G coherent line interface and the receiving end device having a 4 ⁇ 200G interface;
- Fig. 45 is a schematic structural diagram of a link monitoring device provided by an embodiment of the present application.
- Fig. 46 is a schematic structural diagram of another link monitoring device provided by the embodiment of the present application.
- Fig. 47 is a schematic structural diagram of a computer device provided by an embodiment of the present application.
- optical communication systems and optical transport networks are developing towards large capacity and ultra-high speed.
- Optical communication systems typically utilize the amplitude, phase, polarization or frequency of light waves to carry data.
- optical signals are subject to signal distortion due to dispersion, polarization-dependent impairments, noise, nonlinear effects, and other factors.
- wear and aging of components in optical networks can lead to degradation of transmission system performance.
- Forward error correction coding (forward error correction, FEC) is used to correct the transmitted data, which can solve the transmission error and restore the original data sent by the sender from the received data.
- FEC decoding can also assist in link synchronization and link performance monitoring.
- link performance monitoring refers to monitoring the quality of a link used for data transmission.
- An embodiment of the present application provides a link monitoring method.
- the link monitoring method can be applied to the sending end processing module, and the link monitoring method is used to monitor the quality of the link used for data transmission.
- the link monitoring method by receiving the data encoded by the outer code, the data encoded by the outer code is encoded by the inner code and output, and at the same time, the data encoded by the outer code is decoded by the outer code, and according to the When the data encoded by the external code is decoded by the external code, the quality of the link used to transmit the data encoded by the external code can be determined, and the quality of the link can be effectively monitored.
- the link monitoring method since the data encoded by the outer code needs to be encoded by the inner code and output, the data encoded by the outer code also needs to be decoded by the outer code, and it is determined according to the situation of the outer code decoding Link quality, and these two processes will be executed in two ways, so that the process of decoding the data with the outer code and determining the link quality will not affect the process of encoding the data with the inner code and outputting it, so it will not be affected by The process of performing external code decoding and determining the link quality additionally increases the overall transmission delay of data, so that the link monitoring method can be applied to more transmission scenarios, especially for transmission scenarios with lower requirements on transmission delay .
- the embodiment of the present application provides another link monitoring method.
- the link monitoring method can be applied to the receiving end processing module, and the link monitoring method is used for monitoring the quality of the link used for data transmission.
- the link monitoring method by receiving the data encoded by the outer code and the inner code, the data encoded by the outer code and the inner code are decoded by the inner code and output, and the data decoded by the inner code are simultaneously Outer code decoding, and according to the situation of outer code decoding on the data decoded by the inner code, determine the quality of the link used to transmit the data encoded by the outer code and the inner code, and the quality of the link can be determined effective monitoring.
- the link monitoring method since the data decoded by the inner code needs to be output, the data decoded by the inner code also needs to be decoded by the outer code, and the link quality is determined according to the decoding of the outer code. And these two processes will be executed in two ways, so that the process of decoding the data with the outer code and determining the link quality will not affect the process of outputting the data that has been decoded with the inner code, so it will not be affected by the decoding of the outer code.
- the process of coding and determining the link quality additionally increases the overall transmission delay of data, so that the link monitoring method can be applied to more transmission scenarios, especially for transmission scenarios with lower requirements on transmission delay.
- the embodiment of the present application provides yet another link monitoring method.
- the link monitoring method can be applied to the processing module at the sending end, that is, the processing module at the sending end.
- the link monitoring method is used to monitor whether the deviation-corrected data meets the processing standard, and determines the method used for subsequent deviation-correction processing according to the result of monitoring whether the data reaches the processing standard.
- the link monitoring method by receiving the data encoded by the outer code, the data encoded by the outer code is corrected, the data encoded by the outer code is encoded by the inner code and output, and at the same time, it is detected whether the data processed by the deviation correction The processing standard is met, and when the deskewed data does not meet the processing standard, adjust the deskewing method used by the deskewing process.
- the embodiment of the present application provides another link monitoring method.
- the link monitoring method can be applied to a receiving end processing module, that is, a processing module located at the receiving end.
- the link monitoring method is used to monitor whether the deviation-corrected data meets the processing standard, and determines the method used for subsequent deviation-correction processing according to the result of monitoring whether the data reaches the processing standard.
- the link monitoring method by receiving the data encoded by the outer code and the inner code, the data encoded by the outer code and the inner code are decoded by the inner code and output, and the data decoded by the inner code are simultaneously Deviation correction processing, and detect whether the data after deviation correction processing reaches the processing standard, and adjust the deviation correction method used in the deviation correction processing when the data after deviation correction processing does not meet the processing standard.
- FIG. 1 is a schematic diagram of an implementation environment involved in a link monitoring method provided in an embodiment of the present application.
- the implementation environment includes: an originating device 01 , an originating processing module 02 , a channel transmission medium 03 , a receiving end processing module 04 and a receiving end device 05 .
- the originating device 01 and the receiving device 05 can be devices such as switches or routers, and the originating device 01 is also called a client-side chip (host chip) at the sending end, and the receiving device 05 is also called a host chip at the receiving end.
- the channel transmission medium 03 may be an optical fiber.
- the originating device 01 and the originating processing module 02 may be connected through an attachment unit interface (AUI), and the receiving device 05 and the receiving processing module 04 may be connected through an AUI.
- the processing module may be an optical module, an electrical module, or other modules that process data during data transmission.
- the processing module may be an 800LR module (800LR module, a coherent optical module).
- the originating device 01, the originating processing module 02, the channel transmission medium 03, the receiving end processing module 04, and the receiving device 05 in this application scenario can all support bidirectional transmission or unidirectional transmission. It is not specifically limited.
- FIG. 2 is a schematic diagram of a data transmission process in the implementation environment shown in FIG. 1 provided by the embodiment of the present application.
- the originating device 01 in the process of transmitting data from the originating device 01 to the receiving device 05 , the originating device 01 is used to encode the data with an outer code, and then transmit the outer-coded data to the originating processing module 02 .
- the sending end processing module 02 is used to perform inner code encoding on the data encoded by the outer code, obtain the data encoded by the outer code and the inner code, and transmit the data encoded by the outer code and the inner code to the channel transmission medium 03.
- the channel transmission medium 03 is used to transmit the data encoded by the outer code and the inner code to the receiving end processing module 04 .
- the receiving end processing module 04 is used to perform inner code decoding on the data encoded by the outer code and the inner code, and transmit the data decoded by the inner code (that is, the data to be decoded by the outer code) to the receiving end device 05 .
- the receiving end device 05 is used for performing outer code decoding on the data that has undergone inner code decoding.
- both the sending-end processing module 02 and the receiving-end processing module 04 are also used to monitor the quality of the link used for data transmission.
- both the sending-end processing module 02 and the receiving-end processing module 04 are also used to perform deviation correction processing on the signal, and monitor whether the data after deviation correction processing reaches the processing standard, and determine the follow-up deviation correction processing according to the result of monitoring whether the processing standard is met. method.
- the "inner” in the inner code and the “outer” in the outer code indicate the distance between the execution subject operating on the data and the channel transmission medium 03, and the execution subject operating on the inner code is closer to the channel transmission medium, The execution subject that operates the external code is relatively far away from the channel transmission medium.
- the data is transmitted from the originating device 01 to the channel transmission medium 03 through the originating processing module 02, and then transmitted from the channel transmission medium 03 to the receiving end device 05 through the receiving end processing module 04, through the originating device 01
- the encoded data is farther away from the channel transmission medium 03 than the data encoded by the sending end processing module 02, and the data decoded by the receiving end device 05 is farther away from the channel transmission medium 03 than the data decoded by the receiving end processing module 04.
- the data encoded by the originating device 01 is called the data encoded by the outer code
- the data encoded by the originating processing module 02 is called the data encoded by the inner code
- the data decoded by the receiving device 05 is called the data decoded by the outer code
- the data decoded by the receiving end processing module 04 is called the data decoded by the inner code.
- the above content is an exemplary description of the application scenarios of the link monitoring method provided by the embodiment of the present application, and does not constitute a limitation on the application scenarios of the link monitoring method.
- the application scenarios can be adjusted according to the application requirements, and the embodiments of this application do not list them one by one.
- a link monitoring method applied to the sending end processing module is firstly introduced below.
- the link monitoring method is used to monitor the quality of a link used to transmit data.
- the implementation process of the link monitoring method includes the following steps:
- Step 301 the originating processing module receives the data encoded by the outer code.
- the originating processing module 02 is provided with a physical medium attachment (PMA) sublayer 021.
- the originating processing module receives the data encoded by the outer code, and the essence is that the PMA sublayer receives the data encoded by the outer code of the originating device through the interface (such as AUI) between the originating processing module and the originating device. And, after the PMA sublayer receives the data encoded by the outer code, it can demultiplex the data encoded by the outer code to obtain n physical coding sublayer lanes (physical coding sublayer lane, PCSL) data streams, so that De-skew processing is performed on the n PCSL data streams.
- PCSL physical coding sublayer lanes
- Step 302 the processing module at the sending end performs inner code encoding on the data encoded by the outer code, and outputs the data encoded by the inner code.
- the sending end processing module can perform inner code encoding on the data encoded by the outer code, and output the data encoded by the inner code, so as to facilitate processing to the receiving end through the channel transmission medium (such as optical fiber)
- the module transmits data encoded by an internal code.
- data errors caused by the interface transmission between the originating processing module and the originating device are not decoded and eliminated by the outer code, and then sent to the inner code for encoding.
- an inner code encoding unit 022 is set in the originating processing module 02 , and the inner code encoding unit 022 is used for performing inner code encoding.
- the originating processing module performs internal code encoding on the data encoded by the external code, which essentially uses the internal code encoding method to obtain the internal code check data of the data encoded by the external code, and adds the internal code to the data encoded by the external code.
- Internal code check data The sending end processing module outputs the data encoded by the inner code, which is essentially outputting the data encoded by the outer code added with the verification data, also known as outputting the data encoded by the outer code and the inner code.
- the specific implementation manners of the object that is, the data encoded by the inner code
- the data encoded by the inner code may be processed data including encoding by the outer code and deskewing.
- an identification locking and lane de-skew processing (alignment lock and lane de-skew) unit 023 is set in the originating processing module 02 .
- the identification locking and channel skew correction processing unit 023 is used to perform skew correction processing on the data. For example, as shown in FIG.
- the processing module 02 at the originating end may perform deviation correction processing on the data encoded by the outer code first, and then perform inner code encoding on the data encoded by the deviation correction process.
- the data encoded by the inner code may directly be the data encoded by the outer code.
- the sending-end processing module 02 may directly encode the data encoded by the outer code with the inner code.
- the data encoded by the inner code may be data processed including outer code encoding and data processing. In an implementable manner, the data processing includes: first interleaving processing.
- the sending end processing module 02 after the sending end processing module 02 receives the data encoded by the outer code, it can first perform deviation correction processing on the data encoded by the outer code, then perform the first interleaving process on the data after the deviation correction processing, and then perform the first interleaving process on the data encoded by the outer code.
- the data that has undergone the first interleaving process is encoded with an inner code.
- the processing module 02 at the originating end can perform deviation correction processing on the data encoded by the outer code on the one hand, and perform first processing on the data encoded by the outer code on the other hand.
- a first interleaving processing unit 024 is set in the transmitting end processing module 02 , and the first interleaving processing unit 024 is configured to perform first interleaving processing.
- the data subjected to deskew usually includes data of multiple channels.
- the processing module at the sending end can also perform lane reordering processing on the data. That is, the data encoded by the inner code may be the data that has undergone processes including outer code encoding, deviation correction processing, and channel reordering.
- the channel reordering process refers to reordering the data of the multiple channels according to the alignment marks of the data of the multiple channels, so that the data of the multiple channels can be arranged in a specified order.
- the data that has undergone skew correction processing and channel reordering can be divided into two paths, one path is used for inner code encoding, and the other path is used for outer code decoding.
- a channel reordering unit 025 is set in the originating processing module 02 .
- the channel reordering unit 025 is used for performing channel reordering processing on data.
- the output process of the originating processing module is sorted according to the order specified by the channel reordering, which can make the performance test of the sending end processing module, different sending end processing modules of the same type have the same output data under the same input data, which is beneficial to the sending end processing module. Performance testing of processing modules.
- the first interleaving process needs to be performed on the data before the inner code encoding is performed on the data, since the data after the channel reordering can be sorted according to the order specified by the channel reordering, the order of the data in the first interleaving process is fixed, The design of the first interleaving processing unit can be facilitated.
- the processing module at the sending end may first perform a first de-interleaving (de-interleave) process on the data.
- the data encoded by the inner code is the data including outer code encoding, deviation correction processing, channel reordering processing and first deinterleaving processing.
- the data processed by deviation correction, channel reordering and first deinterleaving can be divided into two paths, one path is used for inner code encoding, and the other path is used for outer code decoding.
- the transmitting device performs the second interleaving process on the data encoded by the outer code, and then outputs the data that has undergone the second interleaving process, and the first deinterleaving process is the result of the second interleaving process.
- inverse processing By performing the first deinterleaving process on the data, a stream of codewords can be obtained according to the data of multiple channels. If the data encoded by the outer code is RS-encoded data, the codeword stream is the RS codeword stream (stream of Reed-solomon codewords).
- the processing module at the transmitting end may first perform channel reordering processing on the data that has undergone the skew correction, then perform the first deinterleaving process on the data that has undergone channel reordering, and then perform the first deinterleaving process on the data that has undergone the first deinterleaving process.
- Internal code encoding may first perform channel reordering processing on the data that has undergone the skew correction, then perform the first deinterleaving process on the data that has undergone channel reordering, and then perform the first deinterleaving process on the data that has undergone the first deinterleaving process.
- the processing module at the sending end may first perform channel reordering processing on the skew-corrected data, then perform first deinterleaving processing on the data that has undergone channel reordering, and then perform first interleaving processing on the data that has undergone the first deinterleaving processing, and then Inner code encoding is performed on the data that has undergone the first interleaving process.
- a first deinterleaving processing unit 026 is set in the transmitting end processing module, and the first deinterleaving processing unit 026 is configured to perform first deinterleaving processing on data.
- the processing module at the originating end may also perform some data processing on the data encoded by the inner code. For example, data processing such as modulation mapping or channel interleaving can be performed on the data encoded by the inner code first, and then the processed data can be transmitted to the channel transmission medium.
- data processing such as modulation mapping or channel interleaving can be performed on the data encoded by the inner code first, and then the processed data can be transmitted to the channel transmission medium.
- the implementation process of performing correction processing on the n PCSL data streams may include: obtaining alignment markers (alignment markers, AM) of the n PCSL data streams, and aligning the n PCSL data streams according to the alignment markers of the n PCSL data streams. Perform identification locking on the n PCSL data streams, and perform deviation correction processing on the n PCSL data streams according to the alignment identifications of the n PCSL data streams after determining that the alignment identifications of the n PCSL data streams are legal.
- alignment markers alignment markers, AM
- the communication standard defines the standard alignment identifiers of n1 PCSL data streams corresponding to the transmission scenario
- the implementation method for determining that the identifiers of n1 PCSL data streams are all legal includes: the n1 PCSL data streams received by the sending end processing module
- the alignment identifiers of the PCSL data streams are matched with the standard alignment identifiers of n1 PCSL data streams defined in the communication standard. When matching, it is determined that the identifiers of the n1 PCSL data streams are legal.
- n n1*p, p is a positive integer, and n1 is a positive integer.
- Each data stream determines that the alignment identifiers of its n1 PCSL data streams are legal according to the above description. Then, skew correction processing is performed on the n PCSL data streams according to the alignment identifiers of all n PCSL data streams, or skew correction processing is performed on p data streams respectively.
- the processing module at the originating end can determine the deviation correction method used for the deviation correction processing of the data according to some strategies. For example, the originating processing module can perform deviation correction processing on the data first, and then detect whether the data after deviation correction processing reaches the processing standard. The deviation-correction-processed data meets the processing standard, and adopts the deviation-correction method corresponding to the processing standard to perform deviation-correction processing on the data.
- the implementation process of this process will not be described in detail here, and the implementation process of this process can refer to the related descriptions of steps 3201 to 3205 in the following content accordingly.
- Step 303 the originating processing module performs outer code decoding on the data encoded by the outer code.
- the processing module at the sending end can perform external code decoding on the data encoded by the external code, and determine the quality of the link used to transmit the data encoded by the external code according to the situation of the external code decoding. Moreover, since the originating processing module needs to encode and output the data encoded by the outer code on the one hand, and to decode the data encoded by the outer code on the other hand, and then determine the link according to the decoding situation of the outer code. road quality. That is to say, the source processing module performs internal code encoding on the data encoded by the external code and outputs it, and the source processing module performs external code decoding on the data encoded by the external code and determines the link quality, respectively on the two processing channels implement.
- an outer code decoding unit 027 is set in the originating processing module 02, and the outer code decoding unit 027 is used to perform outer code decoding on the data encoded by the outer code, according to In the case of outer code decoding of the outer code encoded data, the quality of the link used to transmit the outer code encoded data is determined.
- the specific implementation manners of the data decoded by the external code are different.
- the data decoded by the outer code may be data subjected to processing including encoding by the outer code and deskewing.
- the processing module 02 at the originating end may first perform deviation correction processing on the data encoded by the outer code, and then perform outer code decoding on the data that has undergone the deviation correction processing .
- the skew correction processing can be performed in the processing module at the sending end Execute after receiving the data encoded by the outer code, and after performing the deviation correction processing, the data after the deviation correction processing can be processed in two ways, one way is encoded by the sending end processing module and output, and the other way is processed by the sending end processing module Outer code decoding.
- the data decoded by the outer code may be data subjected to processing including outer code encoding, channel reordering processing, and first deinterleaving.
- the processing module 02 at the originating end may first perform deviation correction processing and channel reordering processing on the data encoded by the outer code, and then The first deinterleaving process is performed on the channel-reordered data, and then the outer code decoding is performed on the data after the first deinterleaving process.
- the data decoded by the outer code may be data that has undergone encoding and data extraction including the outer code.
- the originating processing module 02 can first perform data extraction on the data encoded by the external code, and then perform external data extraction on the data extracted by the external code. code decoding.
- the implementation manners of performing skew correction processing on data, performing channel reordering processing on data, and performing first deinterleaving processing on data can refer to relevant descriptions in the foregoing content accordingly, and details are not repeated here.
- the data decoded by the external code can also be the data that has undergone skew correction processing, data extraction, channel reordering processing, and first deinterleaving processing.
- the execution sequence of multiple processes such as deinterleaving process can be adjusted according to application requirements.
- Extracting data from data refers to extracting part of the data flow from the data according to preset rules.
- a data extraction unit 028 is set in the originating processing module 02 .
- the data extraction unit 028 can extract part of the data stream from the data according to preset rules, and output the extracted data stream.
- the preset rule used for data extraction may be: T0 symbols are selected for every interval of T symbols in the data, and in order to ensure that the data stream after data extraction can be decoded, it is necessary to ensure that T0 symbols include at least A complete codeword sequence.
- T ⁇ T0, and both T and T0 are positive integers.
- Values of T and T0 may be determined according to application requirements. For example, as shown in FIG. 16, there are 16 PCSL data streams. Considering that the code length of the outer code is 544 symbols, the symbols A0, A1, A2, etc. in the data stream represent a codeword data stream, and A0, A1, ..., A543 constitute a codeword; the symbols B0, B1, B2 etc.
- T can be 2176
- T0 can be 1088.
- the extracted data includes the symbols in the dotted box 2 in Figure 16.
- the data rate obtained through data extraction can be lower than the data rate of the inner code encoding by the transmitting processing module, which can reduce the speed of the signal after deviation correction processing and realize low power consumption monitoring.
- Step 304 The originating processing module determines the quality of the link used to transmit the data encoded by the outer code according to the situation of decoding the data encoded by the outer code.
- step 304 includes:
- Step 3041a the originating processing module determines the number of symbol errors for each codeword sequence in the P1 codeword sequences according to the outer code decoding of the P1 codeword sequences in the data encoded by the outer code, and P1 is a positive integer .
- the processing module at the sending end can determine the number of symbol errors in the code word sequence according to the decoding of the code word sequence in the data encoded by the outer code. In a practicable manner, if it is determined according to the decoding of the outer code that the codeword sequence can be correctly decoded (i.e. correctable), then the total number of symbols corrected for the codeword sequence in the decoding process can be recorded as is the number of symbol errors in the codeword sequence.
- the number of error symbols in the codeword sequence exceeds the number of error symbols corresponding to the maximum error correction capability of decoding t, at this time, the number of symbol errors in the codeword sequence can be recorded as t+1.
- the number of error symbols corresponding to the maximum error correction capability of its decoding is 15, if the received code word sequence can be corrected, then the code word sequence in the decoding process
- the total number of corrected symbols can be recorded as the number of erroneous symbols of the codeword sequence, and if the received codeword sequence cannot be corrected, the number of erroneous symbols of the codeword sequence can be recorded as 16.
- the processing module at the originating end may determine the quality of the link used to transmit the data encoded by the outer code according to the number of symbol errors in one or more (namely, P1) codeword sequences in the data encoded by the outer code. At this time, the processing module at the originating end needs to determine the number of symbol errors for each codeword sequence in the P1 codeword sequences respectively. And when the quality of the link is determined according to the number of error symbols of multiple codeword sequences in the data encoded by the outer code, because the number of error symbols of multiple codeword sequences can more comprehensively reflect the impact of the codeword sequence on the link. influence, and can monitor the link quality more accurately.
- the "number of error symbols in the codeword sequence" mentioned in the above description refers to the number of error symbols in the codeword sequence detected by the decoder, which may be equal to the number of symbols that actually exist in the codeword sequence.
- the number of erroneous symbols may also not be equal to the number of erroneous symbols actually existing in the codeword sequence.
- Step 3042a the originating processing module determines the quality of the link according to the number of symbol errors in the P1 codeword sequences.
- the processing module at the originating end can determine the quality of the link according to the number of symbol errors in the codeword sequence.
- the processing module at the sending end may calculate the sum of the number of symbol errors of the P1 codeword sequences in the data encoded by the outer code, and then determine the quality of the link according to the sum.
- the sum can be compared with a preset threshold value, and when the sum is greater than the threshold (exceed the threshold), it is determined that the quality of the link has degraded, that is, the link has degraded (link degrade), when the sum is less than or equal to the threshold value, it is determined that the quality of the link does not degrade.
- the threshold value may be determined according to application requirements.
- step 304 includes:
- Step 3041b the originating processing module determines the indication parameter corresponding to the code word sequence according to the outer code decoding of the code word sequence in the outer code coded data.
- the implementation process of this step 3041b includes: the originating processing module determines the number of error symbols of the codeword sequence in the data encoded by the outer code according to the situation of the outer code decoding, and then according to the number of error symbols of the received codeword sequence, An indication parameter of the codeword sequence is determined.
- the processing module at the originating end determines the number of symbol errors in the codeword sequence according to the decoding of the outer code, please refer to the relevant description in step 3041a accordingly.
- the implementation of determining the indication parameter of the codeword sequence includes: comparing the number of symbol errors in the codeword sequence with a preset first threshold value , when the number of symbol errors in the codeword sequence is less than or equal to the first threshold value, set the indication parameter corresponding to the codeword sequence to Q0, and when the number of symbol errors in the codeword sequence is greater than the first threshold value, set The indication parameter corresponding to the codeword sequence is set to Q1.
- the value of Q0 is smaller than the value of Q1, and the first threshold value, the values of Q0 and Q1 can all be determined according to application requirements. For example, the value of Q0 may be 0, and the value of Q1 may be 1.
- step 3042b the processing module at the originating end determines the quality of the link according to the indication parameters corresponding to the P2 codeword sequences in the data encoded by the outer code, where P2 is a positive integer.
- the processing module at the originating end may calculate the sum of the indication parameters corresponding to the P2 codeword sequences in the data encoded by the outer code, and then determine the quality of the link according to the sum. For example, the sum may be compared with a preset second threshold value, and when the sum is greater than the second threshold value, it is determined that the quality of the link has degraded, that is, the link has degraded. When the sum is less than or equal to the second threshold, it is determined that the quality of the link is not degraded.
- the second threshold may be determined according to application requirements.
- the quality of the link is divided into multiple grades, and set corresponding threshold values for the multiple grades, and when the sum is within a range limited by a certain threshold value, it is determined that the quality of the link is the The quality level corresponding to the threshold.
- P2 can be a positive integer greater than 1.
- this link monitoring method by performing external code decoding on the data encoded by the external code, and according to the situation of performing external code decoding on the data encoded by the external code, determine the The link quality of coded data can be effectively monitored.
- the process of link quality increases the transmission delay of data, so that the link monitoring method can be applied to more transmission scenarios, especially for transmission scenarios with lower requirements on transmission delay.
- a link monitoring method applied to the receiving end processing module is introduced below.
- the link monitoring method is used to monitor the quality of a link used to transmit data.
- the implementation process of the link monitoring method includes the following steps:
- Step 1901 the receiving end processing module receives the data encoded by the outer code and the inner code.
- the receiving-end processing module is connected to the sending-end processing module through a channel transmission medium (such as optical fiber). and inner code encoded data. Moreover, after the receiving end processing module receives the data encoded by the outer code and the inner code, it can process the data (such as performing channel deinterleaving and demodulation processing on the data) to obtain a data stream, so as to target the data stream for further processing.
- a channel transmission medium such as optical fiber
- Step 1902 the receiving end processing module performs inner code decoding on the data encoded by the outer code and the inner code, and outputs the decoded data by the inner code.
- the receiving-end processing module After the receiving-end processing module receives the data encoded by the outer code and the inner code, it can decode the data with the inner code to at least partially eliminate the bit errors caused by the transmission in the channel transmission medium in the data, and output the data after the inner code Decoding the decoded data to complete the processing and transmission of the data in the receiving end processing module.
- the receiving end processing module 04 is provided with an inner code decoding unit 041 and a PMA sublayer 042 .
- the inner code decoding unit 041 is used for performing inner code decoding on the data encoded by the outer code and the inner code.
- the receiving end processing module outputs the data decoded by the inner code, and the essence is that the PMA sublayer 042 transmits the data decoded by the inner code to the receiving end device through the interface (such as AUI) between the receiving end processing module and the receiving end device.
- the interface such as AUI
- the specific implementation manners of the data output by the processing module at the receiving end are different.
- the data output by the processing module at the receiving end may be directly decoded data with an inner code.
- the receiving-end processing module 04 may directly output the data decoded by the inner code after performing inner code decoding on the data encoded by the outer code and the inner code.
- the processing module at the sending end can also perform data processing on the data before encoding the data with the inner code, so that the data encoded with the outer code and the inner code can be processed data
- the received end The data output by the processing module may be data that has undergone inverse processing including inner code decoding and data processing.
- the data processing may include: first interleaving processing, and the inverse processing of the data processing may include: second deinterleaving processing.
- the receiving end processing module 04 after the receiving end processing module 04 receives the data encoded by the outer code and the inner code, it can first decode the data encoded by the outer code and the inner code, and then decode the data encoded by the inner code.
- the code-decoded data is subjected to the second deinterleaving process, and then the data subjected to the second deinterleaving process is output.
- the receiving end processing module 04 is provided with a second deinterleaving processing unit 043 .
- the second deinterleaving processing unit 043 is configured to perform deinterleaving processing on the data decoded by the inner code.
- Step 1903 the receiving end processing module performs outer code decoding on the data decoded by the inner code.
- the receiving end processing module can perform outer code decoding on the data decoded by the inner code, and determine the quality of the link used to transmit the data encoded by the outer code and the inner code according to the situation of the outer code decoding. Moreover, since the receiving end processing module needs to output the data decoded by the inner code on the one hand, and decode the data by the outer code on the other hand, and determine the link quality according to the decoding of the outer code. That is, the receiving-end processing module outputs the data decoded by the inner code, performs outer-code decoding with the receiving-end processing module and determines the link quality, and executes on two processing channels respectively.
- the receiving end processing module 04 is provided with an outer code decoding unit 044 for performing outer code decoding on the data.
- the specific implementation manners of the data decoded by the external code are different.
- the data decoded by the outer code may be the data decoded by the inner code.
- the data decoded by the outer code may be processed data including decoding by the inner code and deskewing.
- the receiving end processing module 04 after receiving the data decoded by the inner code, the receiving end processing module 04 can firstly perform deviation correction processing on the data decoded by the inner code, and then perform external processing on the data subjected to the deviation correction processing. code decoding.
- the terminal processing module 04 is provided with an identification locking and channel deviation correction processing unit 045, and the identification locking and channel deviation correction processing unit 045 is used for performing deviation correction processing on the data.
- the data decoded by the outer code may be data that has undergone processing including inner code decoding, channel reordering processing, and first deinterleaving processing.
- the receiving end processing module 04 can first perform channel reordering processing on the data decoded by the inner code, and then reorder the data through the channel The reordered data is subjected to the first deinterleaving process, and then the outer code decoding is performed on the data subjected to the first deinterleaving process.
- the receiving end processing module 04 is provided with a channel reordering unit 046 and a first deinterleaving processing unit 047, the channel reordering unit 046 is used to perform channel reordering processing on the data, and the first deinterleaving processing unit 047 is used to process the data Perform the first deinterleaving process.
- the data decoded by the outer code may be processed by including inner code decoding and first deinterleaving. Data, that is, the receiving end processing module does not need to perform channel reordering processing on the data encoded by the outer code and the inner code.
- the receiving end processing module can first perform the first deinterleaving process on the data decoded by the inner code, and then perform the first deinterleaving process on the data that has undergone the first deinterleaving process.
- the data is decoded with the outer code.
- the data decoded by the outer code may be data that has undergone decoding including inner code and data extraction.
- the receiving end processing module 04 after receiving the data decoded by the inner code, the receiving end processing module 04 can first extract the data decoded by the inner code, and then extract the data extracted by the outer code.
- the receiving end processing module 04 is provided with a data extraction unit 048 , and the data extraction unit 048 is used for data extraction of data.
- the data decoded by the inner code may be data processed
- the data decoded by the outer code may be data subjected to reverse processing including decoding the inner code and the data processing.
- the data processing includes: first interleaving processing
- the inverse processing includes: second deinterleaving processing.
- the receiving end processing module 04 after the receiving end processing module 04 receives the data decoded by the inner code, it can first perform the second deinterleaving process on the data decoded by the inner code, and then deinterleave the data after the second deinterleave The interleaved data is decoded with an outer code.
- the inverse processing can be executed after the receiving end processing module receives the data decoded by the inner code, and after performing the inverse processing, the inversely processed data can be divided into two paths, and one path is output by the receiving end processing module , and the other channel is decoded by the receiving end processing module.
- the implementation of performing deviation correction processing on data, performing channel reordering processing on data, performing first deinterleaving processing on data, performing data extraction on data, and performing second deinterleaving processing on data can be referred to in the preceding content accordingly. Relevant descriptions will not be repeated here.
- the data decoded by the external code can also be the data that has undergone skew correction processing, data extraction, channel reordering processing, and first deinterleaving processing.
- the execution sequence of multiple processes such as deinterleaving process can be adjusted according to application requirements.
- Step 1904 the receiving end processing module determines the quality of the link used to transmit the data encoded by the outer code and the inner code according to the situation of decoding the data decoded by the inner code.
- step 1904 includes:
- Step 19041a the receiving end processing module determines the number of error symbols of each codeword sequence in the P3 codeword sequences according to the outer code decoding of the P3 codeword sequences in the data decoded through the inner code, and P3 is positive integer.
- step 19041a please refer to the implementation process of step 3041a accordingly.
- Step 19042a the receiving end processing module determines the quality of the link according to the number of symbol errors in the P3 codeword sequences.
- step 19042a please refer to the implementation process of step 3042a accordingly.
- step 1904 includes:
- Step 19041b the receiving end processing module determines the indication parameter corresponding to the code word sequence according to the outer code decoding of the code word sequence in the data decoded by the inner code.
- step 19041b please refer to the implementation process of step 3041b accordingly.
- Step 19042b the receiving end processing module determines the quality of the link according to the indication parameters corresponding to the P4 codeword sequences in the data decoded by the inner code, and P4 is a positive integer.
- step 19042b please refer to the implementation process of step 3042b accordingly.
- this link monitoring method by performing external code decoding on the data encoded by the external code, and according to the situation of performing external code decoding on the data encoded by the external code, determine the The link quality of coded data can be effectively monitored.
- the data decoded by the inner code needs to be output, the data decoded by the inner code also needs to be decoded by the outer code, and the link quality is determined according to the decoding of the outer code, and the two processes will be divided into two parts: way, so that the process of decoding the data with the outer code and determining the quality of the link will not affect the process of outputting the decoded data with the inner code, so it will not be affected by the process of decoding the data with the outer code and determining the quality of the link.
- An additional increase in the overall transmission delay of data enables the link monitoring method to be applied to more transmission scenarios, especially for transmission scenarios with lower requirements on transmission delay.
- a link monitoring method applied to the sending end processing module is introduced below.
- the link monitoring method is used to monitor whether the deviation-corrected data meets the processing standard, and determines the method used for subsequent deviation-correction processing according to the result of monitoring whether the data reaches the processing standard.
- the implementation process of the link monitoring method includes the following steps:
- Step 3201 the originating processing module receives the data encoded by the outer code.
- step 3201 For the implementation process of step 3201, reference may be made to the implementation process of step 301, which will not be repeated here.
- Step 3202 the processing module at the sending end performs inner code encoding on the data encoded by the outer code, and outputs the data encoded by the inner code.
- step 302 For the implementation process of the inner-code encoding performed by the sending-end processing module on the outer-coded data, reference may be made to the related description of step 302, which will not be repeated here.
- the processing module at the originating end may first perform data processing on the data encoded by the external code, and then perform internal code encoding on the processed data.
- the object of the inner code encoding by the originating processing module (that is, the data encoded by the inner code by the originating processing module, also referred to as the data encoded by the inner code) is the data including outer code encoding and data processing.
- the data processing includes: first interleaving processing.
- the processing module at the originating end may also perform some data processing on the data encoded by the inner code. For example, data processing such as modulation mapping or channel interleaving can be performed on the data encoded by the inner code first, and the processed data can be transmitted to the channel transmission medium.
- data processing such as modulation mapping or channel interleaving can be performed on the data encoded by the inner code first, and the processed data can be transmitted to the channel transmission medium.
- Step 3203 the originating processing module performs deviation correction processing on the data encoded by the outer code.
- the execution timing of the process of correcting the data encoded by the outer code by the originating processing module can be adjusted according to the requirements of the transmission scenario.
- the processing module at the sending end needs to perform inner code encoding on the data encoded by the outer code, and output the data encoded by the inner code.
- the following takes the process of correcting the data encoded by the outer code, and the different execution order of the process of encoding the data encoded by the outer code and outputting the data encoded by the outer code as an example, and explains the timing of its execution:
- the processing module of the sending end performs deviation correction processing on the data encoded by the outer code
- the processing module at the originating end may be executed before the processing module at the originating end performs inner-code encoding on the outer-code-encoded data and outputs it.
- the object of inner code encoding that is, the data encoded by inner code
- the process of the processing module at the originating end performing inner code encoding on the data encoded by the outer code includes: performing inner code encoding on the data that has undergone skew correction processing.
- the processing module at the sending end will also encode the data with an inner code and output the encoded data.
- the originating processing module will first modify some data in the data and mark the data as not meeting the processing standard, then perform internal code encoding, and output the internal code Code-encoded data.
- the data subjected to deskew usually includes data of multiple channels.
- the transmission processing module can also perform channel reordering processing on the data, for example, as shown in Figure 8, Figure 9, and 10 and Figure 15.
- the processing module at the sending end may firstly perform the first deinterleaving process on the data.
- the data encoded by the inner code is the data that includes outer code encoding, skew correction processing, channel reordering processing and first deinterleaving processing, as shown in FIG. 9 and FIG. 15 , for example.
- the processing module at the transmitting end may first perform channel reordering processing on the data that has undergone the skew correction, then perform the first deinterleaving process on the data that has undergone channel reordering, and then perform the first deinterleaving process on the data that has undergone the first deinterleaving process.
- Internal code encoding is the data that includes outer code encoding, skew correction processing, channel reordering processing and first deinterleaving processing, as shown in FIG. 9 and FIG. 15 , for example.
- the processing module at the transmitting end may first perform channel reordering processing on the data that has undergone the skew correction, then perform the first deinter
- the processing module at the sending end may first perform channel reordering processing on the skew-corrected data, then perform first deinterleaving processing on the data that has undergone channel reordering, and then perform first interleaving processing on the data that has undergone the first deinterleaving processing, and then Inner code encoding is performed on the data that has undergone the first interleaving process.
- first perform channel reordering processing on the skew-corrected data may first perform channel reordering processing on the data that has undergone channel reordering, and then perform first interleaving processing on the data that has undergone the first deinterleaving processing, and then Inner code encoding is performed on the data that has undergone the first interleaving process.
- the processing module at the originating end can perform deviation correction processing on the data encoded by the outer code on the one hand, and
- the data is internal code encoded and output. That is to say, the process of correcting the data encoded by the outer code by the originating processing module and the process of encoding the data encoded by the outer code and outputting the inner code and outputting the data by the originating processing module can be performed in two ways.
- the sending end processing module After the sending end processing module receives the data encoded by the outer code, it will perform two-way processing on the data encoded by the outer code, one way of processing is used to correct the data encoded by the outer code, and the other way of processing Perform inner code encoding on the data encoded by the outer code, and output the data encoded by the inner code.
- the object of inner code encoding performed by the processing module at the originating end is not the data subjected to skew correction processing, but the received data encoded by outer code.
- the process of correcting the data encoded by the outer code will not affect the process of encoding the data encoded by the outer code and outputting the inner code, so the overall transmission of data will not be increased due to the deviation correction process Delay can further reduce the overall data transmission delay.
- Step 3204 the processing module at the originating end detects whether the data that has undergone deviation correction processing meets the processing standard.
- the processing module at the sending end needs to perform inner code encoding on the data encoded by the outer code and output it; That is to say, the source processing module performs inner code encoding on the data encoded by the outer code and outputs it, and the source processing module detects whether the data that has undergone deviation correction processing meets the processing standard, and executes them on two processing channels respectively.
- the process of detecting whether the corrected data meets the processing standard will not affect the process of encoding the data encoded by the outer code and outputting the inner code, so the overall transmission time of the data will not be increased due to the detection process. Delay can effectively reduce the overall data transmission delay.
- the processing module at the sending end can assist in confirming whether the data that has undergone deviation correction processing meets the processing standard according to the decoding of the outer code of the data that has undergone deviation correction processing.
- the sending-end processing module detects whether the data that has undergone deviation-correction processing meets the processing standard, including: the sending-end processing module performs external code decoding on the data that has undergone deviation-correction processing, and determines whether the data that has undergone deviation-correction processing reaches Handling standards. As shown in Fig. 4 to Fig.
- an outer code decoding unit 027 is arranged in the sending end processing module 02, and the outer code decoding unit 027 is used for performing outer code decoding on the data that has undergone deviation correction processing, and according to the outer code decoding situation, determine whether the data that has been corrected has reached the processing standard.
- the arrow pointing from the outer code decoding unit 027 to the identification locking and channel skew correction processing unit 023 is used to indicate whether the data that has undergone skew correction processing meets the processing standard.
- the processing module at the sending end may determine that the data subjected to skew correction processing meets a processing standard when determining that the data subjected to skew correction processing can be decoded correctly.
- a processing standard when determining that the data subjected to skew correction processing can be decoded correctly.
- the embodiment of the present application uses the following two implementation manners as examples for description.
- the processing module at the sending end determines that the data subjected to skew correction processing can be correctly decoded. That is, the processing module at the sending end can perform a complete decoding process on the data that has undergone skew correction processing, and after performing a complete decoding process on the data that has undergone skew correction processing, if it is determined that the decoding of the data that has undergone skew correction processing is completed If the coding process is performed, it is determined that the data that has undergone skew correction processing can be decoded correctly.
- the processing module at the originating end can calculate a syndrome (syndrome) for the received codeword sequence in the data that has been subjected to deviation correction processing, and then calculate an error-location polynomial (error-location polynomial) according to the syndrome And solve the key equation (key-equation) to obtain the error position where the bit error occurs, and then determine the error value of the bit error according to the error position to decode the code word, so as to realize the decoding of the data after the deviation correction process.
- a syndrome syndrome
- error-location polynomial error-location polynomial
- N1 is a positive integer greater than 1, and the value of the N1 can be adjusted according to the application scenario. For example, when the outer code is an RS code, and the RS code is a KP4RS(544,514) code, the value of N1 can be 3.
- the codeword data stream received by the decoder can be divided into q codeword data streams and q sub-decoders are used for decoding respectively, the above-mentioned “consecutive N1 codewords appear in the data after deviation correction processing "Word sequence decoding failure" may refer to the occurrence of consecutive N1 codeword sequence decoding failures in any codeword data stream.
- q is a positive integer greater than 1.
- the data that has been corrected includes multiple codeword sequences and can be divided into q codeword data streams and decoded by q sub-decoders respectively, if any channel of data is found in the decoding process When there are consecutive N1 codeword sequences that fail to be decoded, it can be determined that the data that has undergone skew correction processing does not meet the processing standard.
- the skew-corrected data includes one or more sets including M1 codeword sequences
- N2 codeword sequences in any M1 codeword sequences that fail to be decoded
- N2 is a positive integer greater than 1
- M1 is a positive integer greater than N2
- the values of M1 and N2 can be adjusted according to application scenarios.
- a syndrome may be calculated for each codeword sequence in the skew-corrected data, when the syndrome of the codeword sequence in the skew-corrected data indicates that the skew-corrected data can be decoded correctly , the originating processing module determines that the data that has undergone skew correction processing can be correctly decoded.
- the syndrome of the codeword sequence can directly indicate whether the codeword sequence can be decoded correctly.
- the data that is checked to see whether it meets the processing standard may also be data that has undergone some processing and has undergone deviation correction processing. Also, depending on the transmission scenario, the data may be processed differently.
- the embodiment of the present application uses the following situations as examples to describe it.
- the data that is, the data subjected to skew correction processing
- the data that is, the data subjected to skew correction processing
- the data extraction for example, as shown in FIGS. 13 to 15 .
- the data to be detected whether it meets the processing standard may be data that has undergone skew correction processing, channel reordering processing, and first deinterleaving processing, for example, as shown in Figure 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14 and Figure 15.
- the process of skew correction processing is performed before the process of encoding and outputting the inner code
- the channel reordering process and the first deinterleaving process can be performed between the skew correction process and the inner code encoding, for example, as shown in Figure 9 and Figure 15 shown.
- the channel reordering process and the first deinterleaving process can be performed after the skew correction process, for example, as shown in FIG. 12 , FIG. 13 and FIG. 14 .
- the data to be detected whether it meets the processing standard may be data processed by deviation correction, data extraction, channel reordering, first deinterleaving, and so on.
- the execution order of various processes such as deviation correction processing, data extraction, channel reordering processing, and first deinterleaving processing can be adjusted according to application requirements. For example, data extraction may be performed on the data first, then the channel reordering process is performed on the data extracted data, and then the first deinterleaving process is performed on the channel reordered data.
- the channel reordering process may be performed on the data first, and then the first deinterleaving process is performed on the data that has undergone the channel reordering process, and then data extraction is performed on the data that has undergone the first deinterleaving process, which is not done in the embodiment of the present application.
- the execution sequence of the process of data extraction and the process of correcting the data can also be adjusted according to application requirements. For example, according to the foregoing description, the data may be corrected first, and then data extraction may be performed on the data subjected to the deviation correction. Alternatively, data extraction may be performed on the data first, and then deviation correction processing may be performed on the extracted data, which is not specifically limited in this embodiment of the present application.
- Step 3205 When the data that has undergone skew correction processing does not meet the processing standard, the originating processing module adjusts the skew correction method used in the skew correction processing.
- the sending end processing module needs to adjust the deviation correction method used in the deviation correction processing, so as to effectively correct the deviation of the data .
- the deskewed data meets processing standards, there is no need to adjust the deskewing method used by deskewing.
- the deviation correction processing on the data can be realized through a state machine, and the adjustment of the deviation correction method used in the deviation correction processing can be realized by restarting the state machine.
- this link monitoring method because the data encoded by the outer code needs to be encoded and output by the inner code, it is also necessary to detect whether the data that has been corrected has reached the processing standard, and the two processes will be divided into two parts: The process of detecting whether the corrected data meets the processing standard will not affect the process of encoding and outputting the data with the inner code, so the overall transmission delay of the data will not be increased due to the detection process, making the The link monitoring method can be applied to many transmission scenarios, and is especially suitable for transmission scenarios with lower requirements on transmission delay.
- a link monitoring method applied to the receiving end processing module is introduced below.
- the link monitoring method is used to monitor whether the deviation-corrected data meets the processing standard, and determines the method used for subsequent deviation-correction processing according to the result of monitoring whether the data reaches the processing standard.
- the implementation process of the link monitoring method includes the following steps:
- Step 3301 the receiving end processing module receives the data encoded by the outer code and the inner code.
- the implementation process of step 3301 may refer to the implementation process of step 1901 accordingly.
- Step 3302 The receiving end processing module performs inner code decoding on the data encoded by the outer code and the inner code, and outputs the decoded data by the inner code.
- the implementation process of step 3302 may refer to the implementation process of step 1902 accordingly.
- Step 3303 the receiving end processing module performs deviation correction processing on the data decoded by the inner code, and detects whether the data after deviation correction processing meets the processing standard.
- the implementation process of the receiving end processing module detecting whether the skew-corrected data meets the processing standard can also refer to the implementation process of the sending end processing module detecting whether the skew-corrected data meets the processing standard in the foregoing content.
- the receiving-end processing module may perform external code decoding on the data that has undergone deviation correction processing, and determine whether the data that has undergone deviation correction processing meets the processing standard according to the situation of external code decoding.
- the skew-corrected data can be decoded correctly, it may be determined that the skew-corrected data meets the processing standard.
- the receiving end processing module may determine that the data subjected to skew correction processing can be correctly decoded.
- the syndrome of the codeword sequence in the skew-corrected data indicates that the skew-corrected data can be decoded correctly
- the receiving end processing module can determine that the skew-corrected data can be decoded correctly.
- N3 is a positive integer greater than 1.
- the skew-corrected data includes M2 codeword sequences, and N4 codeword sequences among the M2 codeword sequences fail to be decoded, the skew-corrected data does not meet the processing standard.
- N4 is a positive integer greater than 1
- M2 is a positive integer greater than N4.
- the receiving end processing module 04 is provided with an outer code decoding unit 044 and an identification locking and channel correction processing unit 045 .
- the identification locking and channel deviation correction processing unit 045 is used to perform deviation correction processing on the signal.
- the outer code decoding unit 044 is used to perform outer code decoding on the data that has undergone the deviation correction processing, and determine whether the data that has undergone the deviation correction processing meets the processing standard according to the situation of the outer code decoding.
- the arrow pointing from the outer code decoding unit 044 to the identification locking and channel skew correction processing unit 045 is used to indicate whether the data that has undergone skew correction processing meets the processing standard.
- the receiving-end processing module needs to output the data decoded by the inner code, and on the other hand, it needs to perform deviation correction processing on the data decoded by the inner code, and then detect whether the data after the deviation correction process meets the processing standard. That is, the receiving-end processing module outputs the data decoded by the inner code, and the receiving-end processing module detects whether the deviation-corrected data meets the processing standard, and is respectively executed on two processing channels. In this way, the process of detecting whether the corrected data meets the processing standard will not affect the process of outputting the data decoded by the inner code, so the overall transmission delay of the data will not be increased due to the detection process, which can effectively Reduce the overall data transmission delay.
- the data encoded by the outer code and the inner code may be data processed.
- the data decoded by the inner code may be data processed.
- the data subjected to skew correction processing may be data subjected to inverse processing including inner code decoding and data processing.
- the data processing includes: first interleaving processing, and the inverse processing includes: second deinterleaving processing.
- the receiving-end processing module performs deviation correction processing on the data decoded by the inner code, including: the receiving-end processing module performs inverse processing on the data decoded by the inner code, and the receiving-end processing module performs reverse processing on the data that has been reversely
- a deskew process is performed, for example, as shown in FIGS.
- the receiving end processing module needs to inversely process the data before outputting the data decoded by the inner code, and the receiving end processing module needs to perform inverse processing on the data before correcting the data, the inverse processing process can be performed in the receiving end processing module
- the data encoded by the outer code and the inner code are decoded by the inner code before execution, and after the inverse processing is performed, the data after the inverse processing can be divided into two paths, one path is output by the receiving end processing module, and the other path is output by the receiving end processing module.
- the receiving end processing module performs deviation correction processing.
- the process of the deviation correction processing and checking whether the processing standard is met will not affect the process of outputting the data decoded by the inner code.
- the overall data transmission delay will not be additionally increased due to the detection process, and the overall data transmission delay can be effectively reduced.
- the data that is detected to meet the processing standard may also be data that has undergone some processing and deviation correction processing.
- deskewed data may be data that includes deskewing and data extraction.
- the receiving end processing module detects whether the data that has undergone deviation correction processing meets the processing standard, including: the receiving end processing module performs data extraction on the data that has undergone deviation correction processing, and then detects whether the data that has undergone data extraction meets the processing standard.
- the receiving end processing module 04 is provided with a data extraction unit 048 , and the data can be extracted by the data extraction unit 048 .
- the implementation process of data extraction please refer to the relevant descriptions in the foregoing content accordingly.
- the data subjected to skew correction processing may be data that has undergone processing including skew correction processing, channel reordering processing, and first deinterleaving processing.
- the receiving end processing module detects whether the data that has undergone deviation correction processing meets the processing standard, including: the receiving end processing module performs channel reordering processing on the data of multiple channels that have undergone deviation correction processing, and performs channel reordering processing on the data that has undergone channel reordering processing.
- a deinterleaving process and then detect whether the data that has undergone the first deinterleaving process meets the processing standard, for example, as shown in FIG. 24 , FIG. 25 and FIG. 29 .
- the channel reordering processing and the first deinterleaving processing please refer to the related descriptions in the foregoing content accordingly.
- the data that has undergone skew correction processing may also be data that has undergone skew correction processing, data extraction, channel reordering processing, and first deinterleaving processing.
- the execution order of various processes such as deviation correction processing, data extraction, channel reordering processing, and first deinterleaving processing can be adjusted according to application requirements. For example, data extraction may be performed on the data first, and then channel reordering processing and first deinterleaving processing are performed on the data after data extraction. Alternatively, channel reordering processing and first deinterleaving processing may be performed on data first, and then data extraction is performed on data that has undergone channel reordering processing and first deinterleaving processing, which is not specifically limited in this embodiment of the present application.
- the execution sequence of the process of data extraction and the process of correcting the data can also be adjusted according to application requirements.
- the data may be corrected first, and then data extraction may be performed on the data subjected to the deviation correction.
- data extraction may be performed on the data first, and then deviation correction processing may be performed on the extracted data, which is not specifically limited in this embodiment of the present application.
- Step 3304 when the data that has undergone deviation correction processing does not meet the processing standard, the receiving end processing module adjusts the deviation correction method used in the deviation correction processing.
- this link monitoring method due to the need to output the data decoded by the inner code, it is also necessary to detect whether the data that has been corrected has reached the processing standard, and these two processes will be executed in two ways, so that the detection
- the process of whether the corrected data reaches the processing standard will not affect the process of outputting the data decoded by the inner code, so the transmission delay of the data will not be increased due to the detection process, so that the link monitoring method can be applied It is suitable for more transmission scenarios, especially for transmission scenarios with lower requirements on transmission delay.
- the link monitoring method provided in the embodiment of the present application can be applied to various data center interconnect (data center interconnect, DCI) application scenarios.
- data center interconnect data center interconnect, DCI
- the link monitoring method provided by the embodiment of the present application can be applied to an application scenario where the originating processing module has a single-wavelength 800G coherent line interface and the originating device has a 2 ⁇ 400G interface.
- the originating device can transmit data to the originating processing module through 8 synchronous physical channels of the AUI (every 4 physical channels belong to a 400GAUI-4 interface).
- 32 PCSL data streams can be obtained.
- the 32 PCSL data streams can be divided into 2 data streams. Each data stream includes 16 PCSL data streams.
- the processing module at the sending end can perform deviation correction processing on the 2 data streams and detect whether the data after deviation correction processing meets the processing standard.
- the deviation correction method used by the transmission processing module to perform deviation correction processing is determined according to the result of whether the deviation-corrected data meets the processing standard, and the transmission processing module can perform the first interleaving process on the 2-way data streams that have undergone deviation correction processing.
- the interleaved data is encoded with an inner code and output.
- the sending end processing module divides 32 PCSL data streams into two data streams, and each data stream identifies and locks the 16 PCSL data streams according to the alignment identifiers of the 16 PCSL data streams, and Determine whether the alignment identifiers of the 16 PCSL data streams are legal. Then, after confirming that the alignment marks of the 32 PCSL data streams in the 2 data streams are legal, the 32 PCSL data streams are corrected according to the alignment marks of the 32 PCSL data streams. Then continue to detect whether the data after deviation correction processing reaches the processing standard for the two data streams respectively.
- the originating processing module detects whether the data that has undergone deviation correction processing reaches the processing standard can be realized by performing external code decoding on the data that has undergone deviation correction processing, and after the deviation correction processing is performed on the data by the originating processing module, the data that has undergone deviation correction processing can also be sequentially Perform data extraction, channel reordering processing and first deinterleaving processing, and then perform outer code decoding on the data after the first deinterleaving processing.
- the originating processing module can also determine the quality of the link that transmits data to the originating processing module, that is, the quality of the AUI, according to the external code decoding of the data. As shown in FIG. 37 , each dotted box in FIG.
- the originating processing module divides 32 PCSL data streams into 2 data streams for processing, if the processing includes data extraction of data streams, and the data extraction uses T>T0, the throughput of processing each data stream The rate may be T0/(2 ⁇ T) of the throughput rate before the inner code encoding is performed on the data subjected to the first interleaving process.
- the processing module at the originating end may not perform data extraction on the data.
- the process of performing channel reordering processing on data can be performed between performing skew correction processing on data and performing inner code encoding on data. Among them, Fig.
- the deviation correction process is performed on the data first, and then the channel reordering process is performed on the data. Then, the data that has undergone the channel reordering process will be divided into two paths, and the first path is sequentially performed on the data that has undergone the channel reordering process.
- the interleaving process and inner code encoding are output, and the other channel sequentially performs data extraction, first deinterleaving process and outer code decoding on the data processed by channel reordering. And in this process, it is also possible to choose whether to perform data extraction on the data according to application requirements.
- the receiving end processing module after receiving the data, performs second deinterleaving processing on the data to obtain 32 PCSL data streams.
- the receiving end processing module will output the 32 PCSL data streams through the PMA sublayer; on the other hand, the receiving end processing module will also divide the 32 PCSL data streams into two data streams, and each data stream includes 16 PCSL data stream, and perform external code decoding on each data stream, and determine the quality of the link according to the external code decoding, that is, the quality of the optical fiber link.
- the processing module at the sending end may also sequentially perform data extraction, channel reordering processing, and first deinterleaving processing on the data stream.
- the receiving end processing module may not perform data extraction on the data.
- the processing module at the sending end performs channel reordering processing on the data
- the processing module at the receiving end does not need to perform channel reordering on the data stream. Reorder processing. And in this process, it is also possible to choose whether to perform data extraction on the data according to application requirements.
- the link monitoring method provided by the embodiment of the present application can be applied to an application scenario where the originating processing module has a single-wavelength 800G coherent line interface and the originating device has a 4 ⁇ 200G interface.
- the originating device can transmit data to the originating processing module through 8 synchronous physical channels of the AUI (every 2 physical channels belong to a 200GAUI-2 interface).
- 8 synchronous physical channels of the AUI every 2 physical channels belong to a 200GAUI-2 interface.
- the 32 PCSL data streams can be divided into 4 data streams, each data stream includes 8 PCSL data streams, and the processing module at the sending end can respectively perform deviation correction processing on the 4 data streams and detect whether the data after deviation correction processing reaches the processing standard,
- the deviation correction method used by the transmission processing module to perform deviation correction processing is determined according to the result of whether the deviation-corrected data meets the processing standard, and the transmission processing module can perform the first interleaving process on the 4-way data streams that have undergone deviation correction processing, and perform the first interleaving process on the first
- the interleaved data is encoded with an inner code and output.
- the sending end processing module divides 32 PCSL data streams into 4 data streams, and each data stream identifies and locks 8 PCSL data streams according to the alignment identifiers of the 8 PCSL data streams, and Determine whether the alignment identifiers of the eight PCSL data streams are legal. Then, after confirming that the alignment marks of the 32 PCSL data streams among the 4 data streams are legal, the 32 PCSL data streams are corrected according to the alignment marks of the 32 PCSL data streams. Then continue to detect whether the data after deviation correction processing reaches the processing standard for the four data streams respectively.
- the originating processing module detects whether the data that has undergone deviation correction processing reaches the processing standard can be realized by performing external code decoding on the data that has undergone deviation correction processing, and after the deviation correction processing is performed on the data by the originating processing module, the data that has undergone deviation correction processing can also be sequentially Perform data extraction, channel reordering processing and first deinterleaving processing, and then perform outer code decoding on the data after the first deinterleaving processing.
- the originating processing module can also determine the quality of the link that transmits data to the originating processing module, that is, the quality of the AUI, according to the external code decoding of the data. As shown in FIG. 43 , each dotted box in FIG.
- the originating processing module divides 32 PCSL data streams into 4 data streams for processing, if the processing includes data extraction of data streams, and the data extraction uses T>T0, the throughput of processing each data stream The rate may be T0/(4 ⁇ T) of the throughput rate before the inner code encoding is performed on the data subjected to the first interleaving process.
- the receiving end processing module after receiving the data, performs the second deinterleaving process on the data to obtain 32 PCSL data streams.
- the receiving end processing module will output the 32 PCSL data streams through the PMA sublayer; on the other hand, the receiving end processing module will also divide the 32 PCSL data streams into 4 data streams, each data stream includes 8 PCSL data stream, and perform external code decoding on each data stream, and determine the quality of the link according to the external code decoding, that is, the quality of the optical fiber link.
- the processing module at the sending end performs external code decoding on the data stream, it may also sequentially perform data extraction, channel reordering processing, and first deinterleaving processing on the data stream.
- the link monitoring method provided by the embodiment of the present application can be applied to an application scenario where the originating processing module has a single-wavelength 800G coherent line interface and the originating device has a 1 ⁇ 800G interface.
- the originating device can transmit data to the originating processing module through 8 synchronous physical channels of the AUI, which belong to one 800GAUI-8 interface.
- PCSL data streams can be obtained.
- the 32 PCSL data streams are used as 1 data stream (including 32 PCSL data streams), and the processing module at the originating end can perform deviation correction processing on the 1 data stream and detect whether the data that has undergone deviation correction processing meets the processing standard.
- the result of whether the data meets the processing standard determines the deviation correction method used by the transmission processing module to perform deviation correction processing, and the transmission processing module can perform the first interleaving process on the 1-way data stream that has undergone deviation correction processing, and perform the first interleaving process on the data that has undergone the first interleaving process Internal code encoding and output.
- the originating processing module detects whether the data that has undergone deviation correction processing reaches the processing standard can be realized by performing external code decoding on the data that has undergone deviation correction processing, and after the deviation correction processing is performed on the data by the originating processing module, the data that has undergone deviation correction processing can also be sequentially Perform data extraction, channel reordering processing and first deinterleaving processing, and then perform outer code decoding on the data after the first deinterleaving processing.
- the originating processing module can also determine the quality of the link that transmits data to the originating processing module, that is, the quality of the AUI, according to the external code decoding of the data. As shown in FIG. 13 , the dotted box in FIG.
- the originating processing module processes 32 PCSL data streams as one data stream, if the processing includes data extraction of the data streams, and the data extraction uses T>T0, the throughput of processing each data stream The rate may be T0/T of the throughput rate before the inner code encoding is performed on the data that has undergone the first interleaving process.
- the receiving end processing module will output the 32 PCSL data streams through the PMA sublayer; on the other hand, the receiving end processing module will also treat the 32 PCSL data streams as one data stream, and The stream is decoded by the outer code, and the quality of the link is determined according to the decoding of the outer code, that is, the quality of the optical fiber link.
- the processing module at the sending end may also sequentially perform data extraction, channel reordering processing, and first deinterleaving processing on the data stream.
- the link monitoring method provided by the embodiment of the present application can be applied to an application scenario where the originating processing module has a single-wavelength 400G coherent line interface and the originating device has a 1 ⁇ 400G interface.
- the originating device can transmit data to the originating processing module through 8 synchronous physical channels of the AUI, which belong to a 400GAUI-8 interface.
- PCSL data streams can be obtained.
- the 16 PCSL data streams can be divided into 1 data stream, and the sending end processing module can perform deviation correction processing on the 1 data stream and detect whether the data after deviation correction processing reaches the processing standard, so as to determine whether the data after deviation correction processing reaches the processing standard. As a result, determine the deviation correction method used by the transmission processing module to perform deviation correction processing, and then perform the first interleaving process on the 1-way data stream that has undergone the deviation correction process, and perform inner code encoding on the data that has undergone the first interleaving process and output it.
- the originating processing module detects whether the data that has undergone deviation correction processing reaches the processing standard can be realized by performing external code decoding on the data that has undergone deviation correction processing, and after the deviation correction processing is performed on the data by the originating processing module, the data that has undergone deviation correction processing can also be sequentially Perform data extraction, channel reordering processing and first deinterleaving processing, and then perform external code decoding on the data after data extraction.
- the originating processing module can also determine the quality of the link that transmits data to the originating processing module, that is, the quality of the AUI, according to the external code decoding of the data. As shown in FIG. 13 , the dotted box in FIG. 13 is used to indicate the processing of one data stream.
- the originating processing module processes 16 PCSL data streams as one data stream, if the processing includes data extraction of the data streams, and the T>T0 used for data extraction, the throughput of processing each data stream The rate may be T0/T of the throughput rate before the inner code encoding is performed on the data that has undergone the first interleaving process.
- the receiving end processing module will output the 16 PCSL data streams through the PMA sublayer; on the other hand, the receiving end processing module will also treat the 16 PCSL data streams as one data stream, and The stream is decoded by the outer code, and the quality of the link is determined according to the decoding of the outer code, that is, the quality of the optical fiber link.
- the processing module at the sending end may also sequentially perform data extraction, channel reordering processing, and first deinterleaving processing on the data stream.
- the link monitoring method provided by the embodiment of the present application can also be applied to other application scenarios, such as other 400G, 600G, 800G or even higher-speed transmission scenarios such as 1.6T and 3.2T.
- this link monitoring method can also be applied to other originating processing modules provided in the embodiment of this application.
- the originating device can use the 800GAUI-m/1600GAUI-
- the m interface transmits data to the processing module at the sending end. After the PMA sublayer of the sending end processing module demultiplexes the data, n pieces of PCSL data streams can be obtained.
- n pieces of PCSL data streams subjected to skew correction processing are subjected to first interleaving processing, and the data having undergone first interleaving processing are subjected to inner code encoding and output.
- the originating processing module can also determine the quality of the link for transmitting data to the originating processing module according to the external code decoding of the data.
- the value of n may be 8, 16, 32, or 64, etc.
- the value of m may be 4, 8, 16, or 32, etc.
- the link monitoring method can also be applied to other receiving-end processing modules provided in the embodiment of the present application.
- the receiving-end processing module After receiving the data, the receiving-end processing module will obtain n PCSL data streams by performing deinterleaving processing on the data. On the one hand, the receiving end processing module will output the n PCSL data streams through the PMA sublayer; on the other hand, the receiving end processing module will also perform external code decoding on the n PCSL data streams, and determine link quality.
- the link monitoring device 450 includes:
- the input unit 4501 is used for receiving the data encoded by the outer code.
- the encoding unit 4502 is configured to perform inner code encoding on the data encoded by the outer code.
- An output unit 4503 configured to output the data encoded by the inner code.
- the decoding unit 4504 is configured to perform outer code decoding on the data encoded by the outer code.
- the decoding unit 4504 is further configured to determine the quality of the link used to transmit the data encoded by the outer code according to the outer code decoding of the data encoded by the outer code.
- the decoding unit 4504 is specifically configured to: determine the symbol error of each codeword sequence in the P1 codeword sequences according to the situation of performing outer code decoding on the P1 codeword sequences in the data encoded by the outer code number, P1 is a positive integer; the quality of the link is determined according to the number of symbol errors in the P1 codeword sequences.
- the decoding unit 4504 is specifically configured to: determine the indication parameter corresponding to the codeword sequence according to the situation of performing outer code decoding on the codeword sequence in the data encoded by the outer code;
- the indication parameters corresponding to the P2 codeword sequences determine the quality of the link, and P2 is a positive integer.
- the data decoded by the outer code is data that has undergone encoding and skew correction processing.
- the data decoded by the outer code is the data that has undergone the processing including outer code encoding, channel reordering processing and first deinterleaving processing.
- the data decoded by the outer code is the data including outer code encoding and data extraction.
- the data encoded by the inner code is data encoded by the outer code.
- the data encoded by the inner code is data that has been processed by including outer code encoding and skew correction.
- the data encoded by the inner code is data that has undergone processes including outer code encoding, skew correction processing, and channel reordering.
- the data encoded by the inner code is data that has undergone outer code encoding, skew correction processing, channel reordering processing, and first deinterleaving processing.
- the data encoded by the inner code includes outer code encoding and data processing, and the data processing includes: first interleaving processing.
- the link monitoring device by receiving the data encoded by the outer code, the data encoded by the outer code is encoded by the inner code and output, and at the same time, the data encoded by the outer code is decoded by the outer code.
- the quality of the link used to transmit the data encoded by the outer code is determined according to the outer code decoding of the data encoded by the outer code, so that the quality of the link can be effectively monitored.
- the link monitoring device since the data encoded by the outer code needs to be encoded by the inner code and output, the data encoded by the outer code also needs to be decoded by the outer code, and it is determined according to the situation of the outer code decoding Link quality, and these two processes will be executed in two ways, so that the process of decoding the data with the outer code and determining the link quality will not affect the process of encoding the data with the inner code and outputting it, so it will not be affected by The process of performing external code decoding and determining the link quality additionally increases the overall transmission delay of data, so that the link monitoring device can be applied to more transmission scenarios, especially for transmission scenarios with lower requirements on transmission delay .
- the link monitoring device 460 includes:
- the input unit 4601 is configured to receive data encoded by an outer code and an inner code.
- the first decoding unit 4602 is configured to perform inner code decoding on the data encoded by the outer code and the inner code.
- the output unit 4603 is configured to output the data decoded by the inner code.
- the second decoding unit 4604 is configured to perform outer code decoding on the data that has undergone inner code decoding.
- the second decoding unit 4604 is further configured to determine the quality of the link used to transmit the data encoded by the outer code and the inner code according to the situation of decoding the data decoded by the inner code by the outer code.
- the second decoding unit 4604 is specifically configured to: determine each of the P3 codeword sequences according to the outer code decoding of the P3 codeword sequences in the data decoded by the inner code
- the number of erroneous symbols, P3 is a positive integer; according to the number of erroneous symbols of P3 codeword sequences, the quality of the link is determined.
- the second decoding unit 4604 is specifically configured to: determine the indication parameter corresponding to the codeword sequence according to the outer code decoding of the codeword sequence in the data decoded by the inner code;
- the indication parameters corresponding to the P4 codeword sequences in the code data determine the quality of the link, and P4 is a positive integer.
- the data decoded by the outer code is data that has undergone processing including inner code decoding and skew correction.
- the data decoded by the outer code is data that has been processed by including inner code decoding and first deinterleaving.
- the data decoded by the outer code is the data that has undergone processing including inner code decoding, channel reordering processing, and first deinterleaving processing.
- the data decoded by the outer code is the data including decoding by the inner code and data extraction.
- the data decoded by the inner code is data processed
- the data decoded by the outer code is data processed inversely including inner code decoding and data processing.
- the data processing includes: first interleaving processing
- the reverse processing includes: second deinterleaving processing.
- the output data is data decoded by an inner code.
- the data decoded by the inner code is the data processed by the data
- the output data is the data that has undergone inverse processing including inner code decoding and data processing.
- the data processing includes: first interleaving processing, and the inverse processing includes: : the second de-interleaving process.
- the link monitoring device by receiving the data encoded by the outer code and the inner code, the data encoded by the outer code and the inner code are decoded by the inner code and output.
- the outer code decoding is performed on the data decoded by the inner code, and the link for transmitting the data encoded by the outer code and the inner code is determined according to the situation of the outer code decoding on the data decoded by the inner code. The quality of the link can be effectively monitored.
- the link monitoring device since the data decoded by the inner code needs to be output, the data decoded by the inner code also needs to be decoded by the outer code, and the link quality is determined according to the decoding of the outer code, And these two processes will be executed in two ways, so that the process of decoding the data with the outer code and determining the link quality will not affect the process of outputting the decoded data with the inner code, so it will not be affected by the decoding of the outer code.
- the process of coding and determining the link quality additionally increases the overall transmission delay of data, so that the link monitoring device can be applied to more transmission scenarios, especially for transmission scenarios with lower requirements on transmission delay.
- FIG. 47 exemplarily provides a possible architectural diagram of a computer device.
- the computer device 470 may include a processor 4701 , a memory 4702 , a communication interface 4703 and a bus 4704 .
- the processor 4701 may be a central processing unit (central processing unit, CPU). If the computer device has multiple processors 4701, the types of the multiple processors 4701 may be different, or may be the same.
- multiple processors of the computer device may also be integrated into a multi-core processor.
- the memory 4702 stores computer instructions and data, and the memory 4702 may store computer instructions and data required to implement the methods provided in this application.
- the memory 4702 can be any one or any combination of the following storage media: non-volatile memory (such as read-only memory (read-only memory, ROM), solid state disk (solid state disk, SSD), hard disk (hard disk) drive, HDD), CD, etc., volatile memory.
- non-volatile memory such as read-only memory (read-only memory, ROM), solid state disk (solid state disk, SSD), hard disk (hard disk) drive, HDD), CD, etc., volatile memory.
- the communication interface 4703 may be any one or any combination of the following devices: a network interface (such as an Ethernet interface), a wireless network card and other devices with network access functions.
- the communication interface 4703 is used for data communication between the computer equipment and other nodes or other computer equipment.
- FIG. 47 also schematically depicts a bus 4704 .
- the bus 4704 can connect the processor 4701 with the memory 4702 and the communication interface 4703 .
- the processor 4701 can access the memory 4702, and also use the communication interface 4703 to perform data interaction with other nodes or other computer devices.
- the computer device executes the computer instructions in the memory 4702 to realize the method provided in the present application. For example, receive the data encoded by the outer code; perform inner code encoding on the data encoded by the outer code, and output the data encoded by the inner code; perform outer code decoding on the data encoded by the outer code; In the case of outer-coded data, determine the quality of the link used to transmit the outer-coded data.
- the computer device to execute the computer instructions in the memory 4702 to execute the steps of the method provided in this application, reference may be made to the corresponding descriptions in the foregoing method embodiments.
- the embodiment of the present application also provides a computer-readable storage medium.
- the computer-readable storage medium is a non-volatile computer-readable storage medium.
- the computer-readable storage medium includes program instructions. When the program instructions are run on the computer device When, the computer device is made to execute the method provided by the embodiment of the present application.
- the embodiment of the present application also provides a computer program product containing instructions, and when the computer program product is run on a computer, the computer is made to execute the method provided in the embodiment of the present application.
- the program can be stored in a computer-readable storage medium.
- the above-mentioned The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, and the like.
- the terms “first”, “second” and “third” are used for description purposes only, and cannot be understood as indicating or implying relative importance.
- the term “at least one” means one or more, and the term “plurality” means two or more, unless otherwise clearly defined.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Power Engineering (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
Description
Claims (45)
- 一种链路监控方法,其特征在于,所述方法包括:接收经过外码编码的数据;对所述经过外码编码的数据进行内码编码,并输出经过内码编码的数据;对所述经过外码编码的数据进行外码译码;根据对所述经过外码编码的数据进行外码译码的情况,确定用于传输所述经过外码编码的数据的链路的质量。
- 根据权利要求1所述的方法,其特征在于,所述根据对所述经过外码编码的数据进行外码译码的情况,确定用于传输所述经过外码编码的数据的链路的质量,包括:根据对所述经过外码编码的数据中P1个码字序列进行外码译码的情况,确定所述P1个码字序列中每个码字序列的误符号个数,所述P1为正整数;根据所述P1个码字序列的误符号个数,确定所述链路的质量。
- 根据权利要求1所述的方法,其特征在于,所述根据对所述经过外码编码的数据进行外码译码的情况,确定用于传输所述经过外码编码的数据的链路的质量,包括:根据对所述经过外码编码的数据中码字序列进行外码译码的情况,确定所述码字序列对应的指示参数;根据所述经过外码编码的数据中P2个码字序列对应的指示参数,确定所述链路的质量,所述P2为正整数。
- 根据权利要求1至3任一所述的方法,其特征在于,被外码译码的数据是经过包括外码编码和纠偏处理的数据。
- 根据权利要求1至4任一所述的方法,其特征在于,被外码译码的数据是经过包括外码编码、通道重排序处理和第一解交织处理的数据。
- 根据权利要求1至5任一所述的方法,其特征在于,被外码译码的数据是经过包括外码编码和数据提取的数据。
- 根据权利要求1至6任一所述的方法,其特征在于,被内码编码的数据是所述经过外码编码的数据。
- 根据权利要求1至6任一所述的方法,其特征在于,被内码编码的数据是经过包括外码编码和纠偏处理的数据。
- 根据权利要求1至6任一所述的方法,其特征在于,被内码编码的数据是经过包括外码编码、纠偏处理和通道重排序处理的数据。
- 根据权利要求1至6任一所述的方法,其特征在于,被内码编码的数据是经过包括外码编码、纠偏处理、通道重排序处理和第一解交织处理的数据。
- 根据权利要求1至10任一所述的方法,其特征在于,被内码编码的数据是经过包括外码编码和数据处理的数据,所述数据处理包括:第一交织处理。
- 一种链路监控方法,其特征在于,所述方法包括:接收经过外码编码和内码编码的数据;对所述经过外码编码和内码编码的数据进行内码译码,并输出经过内码译码的数据;对经过内码译码的数据进行外码译码;根据对所述经过内码译码的数据进行外码译码的情况,确定用于传输所述经过外码编码和内码编码的数据的链路的质量。
- 根据权利要求12所述的方法,其特征在于,所述根据对所述经过内码译码的数据进行外码译码的情况,确定用于传输所述经过外码编码和内码编码的数据的链路的质量,包括:根据对所述经过内码译码的数据中P3个码字序列进行外码译码的情况,确定所述P3个码字序列中每个码字序列的误符号个数,所述P3为正整数;根据所述P3个码字序列的误符号个数,确定所述链路的质量。
- 根据权利要求12所述的方法,其特征在于,所述根据对所述经过内码译码的数据进行外码译码的情况,确定用于传输所述经过外码编码和内码编码的数据的链路的质量,包括:根据对所述经过内码译码的数据中码字序列进行外码译码的情况,确定所述码字序列对应的指示参数;根据所述经过内码译码的数据中P4个码字序列对应的指示参数,确定所述链路的质量,所述P4为正整数。
- 根据权利要求12至14任一所述的方法,其特征在于,被外码译码的数据是经过包括内码译码和纠偏处理的数据。
- 根据权利要求12至15任一所述的方法,其特征在于,被外码译码的数据是经过包括内码译码和第一解交织处理的数据。
- 根据权利要求12至16任一所述的方法,其特征在于,被外码译码的数据是经过包括内码译码、通道重排序处理和第一解交织处理的数据。
- 根据权利要求12至17任一所述的方法,其特征在于,被外码译码的数据是经过包括内码译码和数据提取的数据。
- 根据权利要求12至18任一所述的方法,其特征在于,所述经过内码译码的数据为经过数据处理的数据,被外码译码的数据是经过包括内码译码和所述数据处理的逆处理的数据,所述数据处理包括:第一交织处理,所述逆处理包括:第二解交织处理。
- 根据权利要求12至19任一所述的方法,其特征在于,被输出的数据是所述经过内码译码的数据。
- 根据权利要求12至19任一所述的方法,其特征在于,所述经过内码译码的数据为经过数据处理的数据,被输出的数据是经过包括内码译码和所述数据处理的逆处理的数据,所述数据处理包括:第一交织处理,所述逆处理包括:第二解交织处理。
- 一种链路监控装置,其特征在于,所述装置包括:输入单元,用于接收经过外码编码的数据;编码单元,用于对所述经过外码编码的数据进行内码编码;输出单元,用于输出经过内码编码的数据;译码单元,用于对所述经过外码编码的数据进行外码译码;所述译码单元,还用于根据对所述经过外码编码的数据进行外码译码的情况,确定用于传输所述经过外码编码的数据的链路的质量。
- 根据权利要求22所述的装置,其特征在于,所述译码单元,具体用于:根据对所述经过外码编码的数据中P1个码字序列进行外码译码的情况,确定所述P1个 码字序列中每个码字序列的误符号个数,所述P1为正整数;根据所述P1个码字序列的误符号个数,确定所述链路的质量。
- 根据权利要求22所述的装置,其特征在于,所述译码单元,具体用于:根据对所述经过外码编码的数据中码字序列进行外码译码的情况,确定所述码字序列对应的指示参数;根据所述经过外码编码的数据中P2个码字序列对应的指示参数,确定所述链路的质量,所述P2为正整数。
- 根据权利要求22至24任一所述的装置,其特征在于,被外码译码的数据是经过包括外码编码和纠偏处理的数据。
- 根据权利要求22至25任一所述的装置,其特征在于,被外码译码的数据是经过包括外码编码、通道重排序处理和第一解交织处理的数据。
- 根据权利要求22至26任一所述的装置,其特征在于,被外码译码的数据是经过包括外码编码和数据提取的数据。
- 根据权利要求22至27任一所述的装置,其特征在于,被内码编码的数据是所述经过外码编码的数据。
- 根据权利要求22至27任一所述的装置,其特征在于,被内码编码的数据是经过包括外码编码和纠偏处理的数据。
- 根据权利要求22至27任一所述的装置,其特征在于,被内码编码的数据是经过包括外码编码、纠偏处理和通道重排序处理的数据。
- 根据权利要求22至27任一所述的装置,其特征在于,被内码编码的数据是经过包括外码编码、纠偏处理、通道重排序处理和第一解交织处理的数据。
- 根据权利要求22至31任一所述的装置,其特征在于,被内码编码的数据是经过包括外码编码和数据处理的数据,所述数据处理包括:第一交织处理。
- 一种链路监控装置,其特征在于,所述装置包括:输入单元,用于接收经过外码编码和内码编码的数据;第一译码单元,用于对所述经过外码编码和内码编码的数据进行内码译码;输出单元,用于输出经过内码译码的数据;第二译码单元,用于对经过内码译码的数据进行外码译码;所述第二译码单元,还用于根据对所述经过内码译码的数据进行外码译码的情况,确定用于传输所述经过外码编码和内码编码的数据的链路的质量。
- 根据权利要求33所述的装置,其特征在于,所述第二译码单元,具体用于:根据对所述经过内码译码的数据中P3个码字序列进行外码译码的情况,确定所述P3个码字序列中每个码字序列的误符号个数,所述P3为正整数;根据所述P3个码字序列的误符号个数,确定所述链路的质量。
- 根据权利要求33所述的装置,其特征在于,所述第二译码单元,具体用于:根据对所述经过内码译码的数据中码字序列进行外码译码的情况,确定所述码字序列对应的指示参数;根据所述经过内码译码的数据中P4个码字序列对应的指示参数,确定所述链路的质量,所述P4为正整数。
- 根据权利要求33至35任一所述的装置,其特征在于,被外码译码的数据是经过包括内码译码和纠偏处理的数据。
- 根据权利要求33至36任一所述的装置,其特征在于,被外码译码的数据是经过包括内码译码和第一解交织处理的数据。
- 根据权利要求33至37任一所述的装置,其特征在于,被外码译码的数据是经过包括内码译码、通道重排序处理和第一解交织处理的数据。
- 根据权利要求33至38任一所述的装置,其特征在于,被外码译码的数据是经过包括内码译码和数据提取的数据。
- 根据权利要求33至39任一所述的装置,其特征在于,所述经过内码译码的数据为经过数据处理的数据,被外码译码的数据是经过包括内码译码和所述数据处理的逆处理的数据,所述数据处理包括:第一交织处理,所述逆处理包括:第二解交织处理。
- 根据权利要求33至40任一所述的装置,其特征在于,被输出的数据是所述经过内码译码的数据。
- 根据权利要求33至40任一所述的装置,其特征在于,所述经过内码译码的数据为经过数据处理的数据,被输出的数据是经过包括内码译码和所述数据处理的逆处理的数据,所述数据处理包括:第一交织处理,所述逆处理包括:第二解交织处理。
- 一种计算机设备,其特征在于,包括存储器和处理器,所述存储器存储有程序指令,所述处理器运行所述程序指令以执行权利要求1至21任一所述的方法。
- 一种计算机可读存储介质,其特征在于,包括程序指令,当所述程序指令在计算机设备上运行时,使得所述计算机设备执行如权利要求1至21任一所述的方法。
- 一种计算机程序产品,其特征在于,当所述计算机程序产品在计算机上运行时,使得所述计算机执行如权利要求1至21任一所述的方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2024504837A JP2024527436A (ja) | 2021-07-26 | 2022-05-05 | リンクモニタリング方法及び装置 |
EP22847928.3A EP4369610A1 (en) | 2021-07-26 | 2022-05-05 | Link monitoring method and device |
US18/422,467 US20240204927A1 (en) | 2021-07-26 | 2024-01-25 | Link monitoring method and apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110846541.6 | 2021-07-26 | ||
CN202110846541.6A CN115694718A (zh) | 2021-07-26 | 2021-07-26 | 链路监控方法及装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/422,467 Continuation US20240204927A1 (en) | 2021-07-26 | 2024-01-25 | Link monitoring method and apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023005313A1 true WO2023005313A1 (zh) | 2023-02-02 |
Family
ID=85044648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2022/090977 WO2023005313A1 (zh) | 2021-07-26 | 2022-05-05 | 链路监控方法及装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240204927A1 (zh) |
EP (1) | EP4369610A1 (zh) |
JP (1) | JP2024527436A (zh) |
CN (1) | CN115694718A (zh) |
WO (1) | WO2023005313A1 (zh) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1284822A (zh) * | 1999-06-29 | 2001-02-21 | 深圳市华为技术有限公司 | 数字移动通信系统中无线信道误码率的估算方法 |
CN101494774A (zh) * | 2008-01-23 | 2009-07-29 | 厦门华侨电子股份有限公司 | 一种基于小波变换特性的非压缩高清视频信号无线传输方法 |
WO2011051629A2 (fr) * | 2009-10-30 | 2011-05-05 | Centre National D'etudes Spatiales (C.N.E.S.) | Procede de reception et recepteur pour transmission numerique serie codee sur un canal non stationnaire |
CN105871506A (zh) * | 2016-03-23 | 2016-08-17 | 中国电子科技集团公司第十研究所 | 无线通信自适应传输方法 |
CN106257852A (zh) * | 2015-06-22 | 2016-12-28 | 阿尔特拉公司 | 用于可变前向纠错的技术 |
CN109510687A (zh) * | 2018-11-28 | 2019-03-22 | 南通先进通信技术研究院有限公司 | 一种基于卫星通信的喷泉码编码方法 |
-
2021
- 2021-07-26 CN CN202110846541.6A patent/CN115694718A/zh active Pending
-
2022
- 2022-05-05 EP EP22847928.3A patent/EP4369610A1/en active Pending
- 2022-05-05 JP JP2024504837A patent/JP2024527436A/ja active Pending
- 2022-05-05 WO PCT/CN2022/090977 patent/WO2023005313A1/zh active Application Filing
-
2024
- 2024-01-25 US US18/422,467 patent/US20240204927A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1284822A (zh) * | 1999-06-29 | 2001-02-21 | 深圳市华为技术有限公司 | 数字移动通信系统中无线信道误码率的估算方法 |
CN101494774A (zh) * | 2008-01-23 | 2009-07-29 | 厦门华侨电子股份有限公司 | 一种基于小波变换特性的非压缩高清视频信号无线传输方法 |
WO2011051629A2 (fr) * | 2009-10-30 | 2011-05-05 | Centre National D'etudes Spatiales (C.N.E.S.) | Procede de reception et recepteur pour transmission numerique serie codee sur un canal non stationnaire |
CN106257852A (zh) * | 2015-06-22 | 2016-12-28 | 阿尔特拉公司 | 用于可变前向纠错的技术 |
CN105871506A (zh) * | 2016-03-23 | 2016-08-17 | 中国电子科技集团公司第十研究所 | 无线通信自适应传输方法 |
CN109510687A (zh) * | 2018-11-28 | 2019-03-22 | 南通先进通信技术研究院有限公司 | 一种基于卫星通信的喷泉码编码方法 |
Also Published As
Publication number | Publication date |
---|---|
US20240204927A1 (en) | 2024-06-20 |
CN115694718A (zh) | 2023-02-03 |
JP2024527436A (ja) | 2024-07-24 |
EP4369610A1 (en) | 2024-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA3021667C (en) | Encoding and decoding of control signaling with sectional redundancy check | |
US8745469B2 (en) | Signal segmentation method and CRC attachment method for reducing undetected error | |
US9081677B2 (en) | Method and device for estimating input bit error ratio | |
US7073117B1 (en) | Method and apparatus for generating bit errors in a forward error correction (FEC) system to estimate power dissipation characteristics of the system | |
US9094163B2 (en) | Assessment and correction of transmitted data | |
CN111669250B (zh) | 数据传输方法、装置及系统 | |
US20100262887A1 (en) | High Integrity Data Network System and Method | |
CN1738230A (zh) | 在纠错中解决兆比特编码链路上的差错延续 | |
US20230023776A1 (en) | Codeword Synchronization Method, Receiver, Network Device, and Network System | |
US11968039B2 (en) | Systems and methods for executing forward error correction coding | |
EP2784965A2 (en) | Data communication method and apparatus using forward error correction | |
US20240056218A1 (en) | Codeword synchronization method, receiver, network device, and network system | |
WO2023005313A1 (zh) | 链路监控方法及装置 | |
EP3737013B1 (en) | Encoding method, decoding method and device | |
WO2022199529A1 (zh) | 一种数据编码处理方法、装置、存储介质及电子装置 | |
US8745465B1 (en) | Detecting a burst error in the frames of a block of data bits | |
JP6595218B2 (ja) | 連接符号を用いた受信装置及びチップ | |
KR102197751B1 (ko) | 블록 터보 부호의 저 복잡도 오류정정을 위한 신드롬 기반의 혼합 복호 장치 및 그 방법 | |
US20240187130A1 (en) | Data transmission method, apparatus, device, system, and readable storage medium | |
US20070011588A1 (en) | Architecture and method for error detection and correction for data transmission in a network | |
WO2022001892A1 (zh) | 重传方法及通信装置 | |
JP5394949B2 (ja) | 伝送品質評価装置及び伝送品質評価方法 | |
JP6527089B2 (ja) | 伝送品質評価装置、伝送品質評価方法、およびプログラム | |
WO2020115874A1 (ja) | 誤り訂正復号装置および誤り訂正復号方法 | |
WO2016054968A1 (zh) | 一种链路状态控制方法、装置及计算机存储介质 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22847928 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: MX/A/2024/001171 Country of ref document: MX |
|
ENP | Entry into the national phase |
Ref document number: 2024504837 Country of ref document: JP Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112024001369 Country of ref document: BR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2022847928 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2022847928 Country of ref document: EP Effective date: 20240209 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 112024001369 Country of ref document: BR Kind code of ref document: A2 Effective date: 20240123 |