WO2018036485A1 - 一种发送和接收业务的方法、装置和网络*** - Google Patents
一种发送和接收业务的方法、装置和网络*** Download PDFInfo
- Publication number
- WO2018036485A1 WO2018036485A1 PCT/CN2017/098490 CN2017098490W WO2018036485A1 WO 2018036485 A1 WO2018036485 A1 WO 2018036485A1 CN 2017098490 W CN2017098490 W CN 2017098490W WO 2018036485 A1 WO2018036485 A1 WO 2018036485A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data stream
- unit
- segment
- data
- idle
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 80
- 230000008569 process Effects 0.000 claims description 30
- 239000003550 marker Substances 0.000 claims description 23
- 238000003780 insertion Methods 0.000 claims description 16
- 230000037431 insertion Effects 0.000 claims description 16
- 238000011084 recovery Methods 0.000 claims description 15
- 230000002829 reductive effect Effects 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 38
- 238000010586 diagram Methods 0.000 description 55
- 238000012545 processing Methods 0.000 description 44
- 238000012217 deletion Methods 0.000 description 22
- 230000037430 deletion Effects 0.000 description 22
- 238000007792 addition Methods 0.000 description 20
- 230000008859 change Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 7
- 239000000284 extract Substances 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000008707 rearrangement Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1605—Fixed allocated frame structures
- H04J3/1652—Optical Transport Network [OTN]
- H04J3/1658—Optical Transport Network [OTN] carrying packets or ATM cells
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0008—Synchronisation information channels, e.g. clock distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1605—Fixed allocated frame structures
- H04J3/1611—Synchronous digital hierarchy [SDH] or SONET
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1605—Fixed allocated frame structures
- H04J3/1652—Optical Transport Network [OTN]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/35—Switches specially adapted for specific applications
- H04L49/351—Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches
- H04L49/352—Gigabit ethernet switching [GBPS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
- H04J2203/0073—Services, e.g. multimedia, GOS, QOS
- H04J2203/0082—Interaction of SDH with non-ATM protocols
- H04J2203/0085—Support of Ethernet
Definitions
- the present invention relates to the field of communications, and in particular, to a method, apparatus, and network system for transmitting and receiving services.
- Flexible Ethernet combines the technical features of Ethernet and transport networks (eg, Optical Transport Network (OTN), Synchronous Digital Hierarchy (SDH), etc.) An important milestone.
- OTN Optical Transport Network
- SDH Synchronous Digital Hierarchy
- the Ethernet physical interface presents the characteristics of virtualization.
- Multiple Ethernet physical interfaces can be cascaded to support several virtual logical ports. For example, four 100 Gigabit Ethernet (100 Gigabit Ethernet) physical interfaces are cascaded into a 400 Gigabit (400 Gigabit, 400 G) flexible Ethernet physical interface group that can support several logical ports.
- the Ethernet physical interface is an asynchronous communication interface that allows a clock frequency difference of plus or minus 100 ppm (one ten thousandth).
- a clock frequency difference of plus or minus 100 ppm (one ten thousandth).
- 10GE two physical interfaces with a nominal bandwidth of 10G, one of which may be one ten thousandth larger than the nominal value, and the other one is one ten thousandth smaller than the nominal value, ie 10G* (1+0.0001 respectively).
- 10G* (1-0.0001
- the clock frequency of the logical port inherits the clock frequency characteristics of the physical interface, and there is also a deviation of 100 ppm.
- a logical port with a nominal bandwidth of 25G on two different physical interfaces or physical interface groups removes the overhead of flexible Ethernet partitioning slots and managing time slots.
- FIG. 1 is a schematic diagram of service transmission of a flexible Ethernet in the prior art. As shown in FIG. 1, when the services between the client devices Ca and Cb are carried by the flexible Ethernet devices Pa, Pb, and Pc, it is necessary to perform idle cell addition and deletion on the Pa, Pb, and Pc.
- the addition and deletion of the idle code block may cause the clock frequency and time phase information of the service itself to be lost. That is, the clock frequency and time phase information of the service cannot be transparently transmitted, and the source and sink network devices of the service cannot maintain the clock frequency and time phase. Synchronization.
- the embodiments of the present invention provide a method, a device, and a network system for transmitting and receiving services, which can solve the problem that the service clock frequency and the time phase information of the flexible Ethernet cannot be transparently transmitted, and the source and sink network devices of the service cannot be obtained. Keep the clock frequency and time phase synchronized.
- an embodiment of the present invention provides a method for sending a service, including: acquiring, by a source device, an original data stream. Then, the sending end device inserts the quantity mark k in the original data stream to generate a first data stream; wherein the quantity mark k is used to identify the number of the first data unit in the original data stream, where the k is greater than Or equal to zero. Finally, the transmitting device sends the first data stream.
- a quantity mark k is inserted in the original data stream for identifying the number of first data units in the original data stream.
- the receiving end device can restore the data stream after the addition and deletion of the idle unit to the original data stream according to the quantity mark k, thereby obtaining the clock frequency and time phase information of the original data stream, and realizing the clock frequency and time phase information of the service. pass.
- the inserting the quantity mark k in the original data stream includes: acquiring a first segment data stream from the original data stream, and determining the first segment data stream The number of first data units; a first position in the first segment data stream is inserted with a quantity mark k, the value of the quantity mark k being equal to the number of first data units in the first segment data stream, the first position being At the location where the data unit carrying the quantity marker k is located.
- the original data stream is segmented so that the number mark k is inserted into the segment.
- the first data unit includes all data units of the first segment data stream, and the k is an integer greater than zero.
- the idle cells may be added or deleted, resulting in a change in the number of data units in the original data stream.
- the number of all data units of the first segment data stream in the original data stream can be identified by the quantity tag k.
- the first data unit is an idle unit of the first segment data stream
- the k is an integer greater than or equal to zero.
- the number of free cells of the first segment data stream in the original data stream can be identified by the quantity flag k.
- the acquiring, by the first data stream, the first segment data stream includes: starting a unit of the original data stream; determining a location where the starting unit is located as the First position.
- the start unit can be a code block unit having a fixed pattern, that is, having redundant information, it can be used to carry the number mark k.
- the location where the start unit is located may also be determined as the boundary of the first segment data stream. That is to say, the start unit can be used to carry the quantity flag k, and can also be used to determine the boundary of two adjacent sector data streams.
- acquiring the first segment data stream from the original data stream includes: setting a threshold of the quantity flag k; when the length of the first segment data stream is greater than or equal to When the threshold is stated, the first idle unit of the first segment data stream is identified; the location where the first idle unit is located is determined as the first location.
- the free unit Since the free unit has redundant information, it can be used to carry the quantity flag k. However, in order to avoid excessive use of the idle cells to carry the number flag k, it is allowed to insert k in the free cells when the length of the segment data stream is greater than a certain threshold.
- the location where the first idle unit is located may also be determined as a boundary of the first segment data stream. That is to say, the first idle unit can be used to carry the quantity flag k, and can also be used to determine the boundary of two adjacent sector data streams.
- the first data unit is subjected to an encoding process, or the first data unit is not subjected to an encoding process.
- the technical solution of the present invention can be implemented before the original data stream is encoded, and can also be implemented after the original data stream is encoded.
- the method further includes: increasing and/or decreasing the number of idle cells in the first data stream.
- the free cells of the first data stream carrying the number of tokens k can be added or deleted.
- an embodiment of the present invention provides a method for receiving a service, including: receiving, by a receiving device, a first data stream; extracting a quantity flag k in the first data stream, and determining a first data in the first data stream a number of units, the k being greater than or equal to zero; restoring the first data stream to the original data stream, the number of first data units in the original data stream being equal to the k.
- the quantity mark k is extracted from the first data stream, the number of the first data unit in the original data stream is determined according to the quantity mark k, and the first data stream is restored to the original data stream.
- the receiving device will go through the empty The data stream after the addition and deletion of the idle unit is restored to the original data stream, thereby obtaining the clock frequency and time phase information of the original data stream, and realizing transparent transmission of the clock frequency and time phase information of the service.
- the extracting the quantity mark k in the first data stream includes: acquiring a first segment data stream from the first data stream, and determining the first segment data A first position in the stream from which the quantity marker k is extracted, the first position being the location of the data unit that can be used to carry the quantity marker k.
- the first data stream is segmented to facilitate the number mark k segment extraction.
- the first data unit includes all data units of the first segment data stream, and the k is an integer greater than zero.
- the idle cells may be added or deleted, resulting in a change in the number of data units in the original data stream. Therefore, the number of all data units that the first segment data stream has after being restored to the original data stream can be identified by the quantity flag k.
- the first data unit is an idle unit of the first segment data stream
- the k is an integer greater than or equal to zero.
- the number of idle cells after the first segment data stream is restored to the original data stream can be identified by the quantity flag k.
- the restoring the first data stream to the original data stream includes: determining a quantity m of the first data unit in the first segment data stream, according to the m The difference from k is adjusted by the number m of first data units in the first segment data stream such that m is equal to k.
- the adjusting the quantity m of the first data unit in the first segment data stream according to the difference between the m and the k includes: when the m is greater than k, The first segment data stream is reduced by mk idle cells; when m is less than k, km idle cells are added to the first segment data stream.
- the first data stream is restored to the original data stream by inverse addition and deletion of the free cells.
- the method further includes: acquiring a clock frequency of the original data stream.
- the clock frequency of the original data stream can be obtained, and the clock frequency of the service is transparently transmitted.
- an embodiment of the present invention provides an apparatus for sending a service, including: an acquiring module, configured to acquire an original data stream; and an inserting module, configured to insert a quantity mark k into the original data stream to generate first data.
- the quantity indicator k is used to identify the number of the first data unit in the original data stream, the k is greater than or equal to zero; and the sending module is configured to send the first data stream.
- a quantity mark k is inserted in the original data stream for identifying the number of first data units in the original data stream.
- the device for receiving the service can restore the data stream after the addition and deletion of the idle unit to the original data stream according to the quantity mark k, thereby obtaining the clock frequency and time phase information of the original data stream, and realizing the clock frequency and time phase information of the service. Penetrate.
- the inserting module is configured to: obtain a first segment data stream from the original data stream, and determine a quantity of the first data unit in the first segment data stream; The first in the first segment data stream a position insertion quantity mark k, the value of the quantity mark k being equal to the number of first data units in the first segment data stream, the first position being a data unit capable of carrying the quantity marker k s position.
- the original data stream is segmented so that the number mark k is inserted into the segment.
- the first data unit includes all data units of the first segment data stream, and the k is an integer greater than zero.
- the idle cells may be added or deleted, resulting in a change in the number of data units in the original data stream.
- the number of all data units of the first segment data stream in the original data stream can be identified by the quantity tag k.
- the first data unit is an idle unit of the first segment data stream
- the k is an integer greater than or equal to zero.
- the number of free cells of the first segment data stream in the original data stream can be identified by the quantity flag k.
- the inserting module is configured to: identify a starting unit of the original data stream; and determine a location where the starting unit is located as the first location.
- the start unit can be a code block unit having a fixed pattern, that is, having redundant information, it can be used to carry the number mark k.
- the location where the start unit is located may also be determined as the boundary of the first segment data stream. That is to say, the start unit can be used to carry the quantity flag k, and can also be used to determine the boundary of two adjacent sector data streams.
- the inserting module is configured to: set a threshold of the quantity mark k; when the length of the first section data stream is greater than or equal to the threshold, identify the first a first idle unit of the segment data stream; determining a location at which the first idle cell is located as the first location.
- the free unit Since the free unit has redundant information, it can be used to carry the quantity flag k. However, in order to avoid excessive use of the idle cells to carry the number flag k, it is allowed to insert k in the free cells when the length of the segment data stream is greater than a certain threshold.
- the location where the first idle unit is located may also be determined as a boundary of the first segment data stream. That is to say, the first idle unit can be used to carry the quantity flag k, and can also be used to determine the boundary of two adjacent sector data streams.
- the first data unit is subjected to an encoding process, or the first data unit is not subjected to an encoding process.
- the technical solution of the present invention can be implemented before the original data stream is encoded, and can also be implemented after the original data stream is encoded.
- the apparatus further includes: an addition and deletion module, configured to increase and/or decrease the number of idle units in the first data stream.
- the free cells of the first data stream carrying the number of tokens k can be added or deleted.
- an embodiment of the present invention provides an apparatus for receiving a service, including: a receiving module, configured to receive a first data stream; and an extracting module, configured to extract a quantity mark k in the first data stream, determine a number of first data units in a data stream, the k being greater than or equal to zero; a recovery module, configured to restore the first data stream to the original data stream, the number of first data units in the original data stream Equal to the k.
- the quantity mark k is extracted from the first data stream, the number of the first data unit in the original data stream is determined according to the quantity mark k, and the first data stream is restored to the original data stream.
- the device receiving the service restores the data stream after the addition and deletion of the idle unit to the original data stream, thereby obtaining the clock frequency and time phase information of the original data stream, and realizing transparent transmission of the clock frequency and time phase information of the service.
- the extracting module is configured to: acquire the first data from the first data stream
- a segment data stream determining a first location in the first segment data stream, extracting a quantity marker k from the first location, the first location being a data unit capable of carrying the quantity marker k Where it is.
- the first data stream is segmented to facilitate the number mark k segment extraction.
- the first data unit includes all data units of the first segment data stream, and the k is an integer greater than zero.
- the idle cells may be added or deleted, resulting in a change in the number of data units in the original data stream. Therefore, the number of all data units that the first segment data stream has after being restored to the original data stream can be identified by the quantity flag k.
- the first data unit is an idle unit of the first segment data stream
- the k is an integer greater than or equal to zero.
- the number of idle cells after the first segment data stream is restored to the original data stream can be identified by the quantity flag k.
- the recovery module is configured to: determine a quantity m of the first data unit in the first segment data stream, and adjust the first according to the difference between the m and the k The number m of first data units in the segment data stream such that m is equal to k.
- the recovery module is configured to: when the m is greater than k, reduce mk idle units in the first segment data stream; when m is less than k, in the first Adding km free cells to a sector data stream.
- the first data stream is restored to the original data stream by inverse addition and deletion of the free cells.
- the apparatus further includes: a clock module, configured to acquire a clock frequency of the original data stream.
- the clock frequency of the original data stream can be obtained, and the clock frequency of the service is transparently transmitted.
- the fifth aspect provides a network system, including the apparatus according to any one of the third aspect and the third aspect, and any one of the fourth aspect and the fourth aspect. Possible implementations of the device described.
- an embodiment of the present invention provides a network device, including: a processor, a memory, and at least one network interface; the memory is configured to store a computer execution instruction, and when the network device is running, the processor executes a memory execution computer execution instruction. To cause the network device to perform the method as described in the first aspect and any one of the possible implementations of the first aspect.
- an embodiment of the present invention provides a network device, including: a processor, a memory, and at least one network interface; the memory is configured to store a computer execution instruction, and when the network device is running, the processor executes a memory execution computer execution instruction. To cause the network device to perform the method as described in any one of the second aspect and the second aspect.
- FIG. 1 is a schematic diagram of service transmission of a flexible Ethernet in the prior art
- 2a is a schematic diagram of service transmission of a flexible Ethernet according to an embodiment of the present invention.
- 2b is a schematic diagram of service transmission of a flexible Ethernet according to an embodiment of the present invention.
- FIG. 3 is a schematic diagram of another flexible Ethernet service transmission according to an embodiment of the present disclosure.
- FIG. 4 is a schematic diagram of a format of a data flow according to an embodiment of the present disclosure.
- FIG. 5 is a schematic diagram of another format of a data stream according to an embodiment of the present disclosure.
- FIG. 6 is a schematic diagram of a format of a start code block according to an embodiment of the present invention.
- FIG. 7 is a schematic diagram of a format of six code blocks according to an embodiment of the present invention.
- FIG. 8 is a schematic diagram of a format of three code blocks according to an embodiment of the present invention.
- FIG. 9 is a schematic diagram of a format of a data stream according to an embodiment of the present invention.
- FIG. 10 is a schematic diagram of a format of a code block according to an embodiment of the present disclosure.
- FIG. 11 is a schematic diagram of a format of a data stream according to an embodiment of the present invention.
- FIG. 12 is a schematic diagram of a format of a data stream according to an embodiment of the present invention.
- FIG. 13 is a schematic diagram of another format of a data stream according to an embodiment of the present invention.
- FIG. 14 is a schematic diagram of a format of five code blocks according to an embodiment of the present invention.
- FIG. 15 is an exemplary flowchart of a method for sending a service according to an embodiment of the present invention.
- FIG. 16 is a schematic flowchart of data processing of a 40GE physical interface according to an embodiment of the present disclosure
- FIG. 17 is a schematic diagram of an AM format conversion according to an embodiment of the present invention.
- FIG. 18 is a schematic diagram of a format of four code blocks according to an embodiment of the present disclosure.
- FIG. 19 is a schematic structural diagram of a device at a transmitting end according to an embodiment of the present disclosure.
- FIG. 20 is a schematic diagram of a data processing process of a 10GE physical interface according to an embodiment of the present disclosure
- FIG. 21 is a schematic structural diagram of another device at a transmitting end according to an embodiment of the present disclosure.
- FIG. 22 is a flowchart of a method for inserting a quantity mark according to an embodiment of the present invention.
- FIG. 23 is an exemplary flowchart of a method for receiving a service according to an embodiment of the present invention.
- FIG. 24 is a schematic structural diagram of a receiving end device according to an embodiment of the present disclosure.
- FIG. 25 is a schematic structural diagram of another receiving end device according to an embodiment of the present disclosure.
- FIG. 26 is a flowchart of a method for extracting quantity marks according to an embodiment of the present invention.
- FIG. 27 is a schematic structural diagram of a system for clock frequency recovery according to an embodiment of the present invention.
- FIG. 28 is a schematic structural diagram of a client device according to an embodiment of the present invention.
- FIG. 29 is a schematic structural diagram of a client device according to an embodiment of the present disclosure.
- FIG. 30 is a schematic structural diagram of an apparatus for sending a service according to an embodiment of the present disclosure.
- FIG. 31 is a schematic structural diagram of an apparatus for receiving a service according to an embodiment of the present disclosure.
- FIG. 32 is a schematic structural diagram of a network system according to an embodiment of the present disclosure.
- FIG. 33 is a schematic structural diagram of a network device according to an embodiment of the present invention.
- the technical solution provided by the embodiment of the present invention can be applied to a flexible Ethernet, and can also be applied to other types of networks, such as an Ethernet, an Optical Transport Network (OTN) network, and a Synchronous Digital Hierarchy (Synchronous Digital Hierarchy, SDH) network, etc.
- the embodiment of the present invention mainly uses flexible Ethernet as an example for description.
- FIG. 2 is a schematic diagram of a service transmission of a flexible Ethernet according to an embodiment of the present invention.
- the client device Ca needs to send one-way service to the client device Cb, and the service can be transmitted between the Ca and the Cb through a bearer network.
- a flexible Ethernet consisting of multiple flexible Ethernet devices (eg, Pa, Pb, and Pc) acts as a bearer network.
- the client device can be a router, a switch, etc., and the flexible Ethernet device can also be an Ethernet device, an OTN device, an SDH device, or the like.
- the quantity tag may be inserted into the original data stream.
- k identifies the number of data units of the original data stream.
- the data unit includes an idle unit and a non-idle unit.
- the free unit has a fixed data format.
- a non-idle unit is a data unit other than an idle unit, including a variety of data formats. In the embodiment of the present invention, only the number of idle units may be marked, or the number of all data units may be marked.
- the source device Pa can also perform the same idle cell addition and deletion as the prior art.
- the intermediate device Pb of the flexible Ethernet the same free cell addition and deletion as the prior art can be performed.
- the intermediate device may also include multiple devices, that is, the original data stream may be added or deleted by multiple idle units.
- the receiving device Pc of the flexible Ethernet the quantity flag k is extracted, and the idle unit is added and deleted according to the quantity flag k, that is, the original data stream is restored.
- the idle unit is added or deleted, that is, the original data stream is increased by n idle units, and the receiving end device Pc deletes n idle units, or the original data stream deletes n idle units, and the receiving end device Pc adds n idle units.
- the recovered original data stream has the same number of data units or free units as the original data stream before the idle unit addition and deletion. Therefore, the receiving end device Pc can obtain the clock frequency and time phase information of the original data stream according to the restored original data stream, and realize transparent transmission of the clock frequency and time phase information of the service.
- FIG. 2b is a schematic diagram of service transmission of a flexible Ethernet according to an embodiment of the present invention.
- the service is sent from the client device Cb to the client device Ca, and the flow of execution is opposite to that of FIG. 2a.
- the steps performed by Pc in FIG. 2b are the same as those in Pa in FIG. 2a, and the steps performed by Pa in FIG. 2b. The steps are the same as those performed by Pc in Figure 2a.
- FIG. 3 is a schematic diagram of another flexible Ethernet service transmission according to an embodiment of the present invention.
- a service is transmitted from the client device Ca to the client device Cb will be described.
- the quantity mark k can be inserted on the client device Ca, the quantity mark k is extracted at the client device Cb, and the reverse addition and deletion of the free unit is performed, and the original data is restored.
- the flexible Ethernet devices Pa, Pb, Pc, etc. can perform the same idle cell addition and deletion as the prior art, without any improvement, so that the technical solution of the present invention is well compatible with the existing flexible Ethernet.
- the data format of the original data stream may include an encoded data format, and may also include an unencoded data format.
- the format of the free unit may include an idle code block, an idle byte unit, and the like.
- 64B/66B encoding is taken as an example:
- FIG. 4 is a schematic diagram of a format of a data stream according to an embodiment of the present invention.
- the start code block S, the end code block T, and the plurality of code blocks D are regarded as one packet.
- packet 401 and packet 403 are shown in the figure.
- the original data stream may also be delayed.
- the original data stream is delayed by one code block.
- the sender device Or the intermediate device can perform addition and deletion operations on the idle code block.
- an Idle 407 is deleted based on the original data stream
- an Idle 409 is added to the original data stream.
- the receiving end device restores the data stream added and deleted by the idle code block to the original data stream.
- FIG. 5 is a schematic diagram of another format of a data stream according to an embodiment of the present invention.
- the number flag k may be inserted in the start code block (eg, start code block 505) of the original data stream.
- the quantity mark k always exists in the data stream until it is extracted by the receiving end device for restoring the original data.
- a packet 501 and a packet 503 are included. Packet 501 and packet 503 may be adjacent packets, or other packets may exist between packet 501 and packet 503.
- one quantity mark k can be inserted for one group, and one quantity mark k can also be inserted for a plurality of groups.
- the code block between the start code block of packet 501 and the start code block of packet 503 is treated as a segment data stream of length k (containing the start code block of packet 501, without the start code block of packet 503).
- a quantity flag k can be inserted in the start code block 505, which can identify the total number of code blocks of the segment data stream of length k.
- k does not include the start code block 505 of the packet 503.
- the start code block of the packet 503 may also be included, which is not limited by the present invention.
- the idle code block may exist between the packets or may exist within the packet. Also shown in the figure is a start code block 507 in which the number mark k0 is inserted in the packet 501, which acts similarly to the start code block 505 carrying the number mark k, and will not be described again here.
- the start code block S in the data frame of the Ethernet is a fixed code block of the bit pattern, and does not change during the transmission, and therefore contains redundant information, which can be used to carry information such as the quantity mark k.
- the preamble symbol includes 8 bytes of Transmit (character Data, TXD) / Receive (character) data (Received (character) ) Data, RXD), and through 8-bit transmit (character) control (signal) (Transmit (character) Control (s ignals), TXC) / receive (character) control (signal) (Received (character) Control (s Ignams), RXC) instructions.
- the ⁇ TXC, TXD> of the preamble symbol is: ⁇ 1, 0xFB> ⁇ 0, 0x55> ⁇ 0,0x55> ⁇ 0,0x55> ⁇ 0,0x55> ⁇ 0,0x55> ⁇ 0, 0xD5>.
- 0xFB is the frame start control character "/S/”
- 0xD5 is the Start of Frame Delimiter (SFD).
- the preamble encoded data format is called the start code block, and the 8-byte preamble symbol boundary is aligned with the boundary of the 64B/66B code block, for example, "/S/" is aligned with the boundary of the start code block.
- FIG. 6 is a 64B/66B encoding format of a start code block according to an embodiment of the present invention, including a synchronization header “10” and a control code block type “0x78”.
- FIG. 7 is a schematic diagram of a format of six code blocks according to an embodiment of the present invention.
- the code block 701 changes "0x55" of D1 to "0x00" and "0xD5" of D7 to "0xFF" on the basis of the start code block shown in FIG. 6.
- Block 703 changes D1 to "0xA”.
- Block 707 changes D7 to "0xA”.
- Block 711 changes D1 to "0xA” and D7 to "0xA”.
- FIG. 8 is a schematic diagram of a format of three code blocks according to an embodiment of the present invention.
- the code blocks 801 and 803 are identified by the preset pattern as "0x4B+0xA”.
- the code block 805 changes the control code block type "0x78" to "0xFF".
- the specific implementation manner is not limited to the code block format shown in FIG. 7 and FIG. 8, as long as the start code block carrying k can be identified.
- FIG. 9 is a schematic diagram of a format of a data stream according to an embodiment of the present invention.
- the data stream of length k is divided into two sections.
- the lengths are k1 and k2, respectively.
- the number of symbols k1 may be inserted in the first code block 901 (idle code block) after the segment k1 for identifying the number of all code blocks or the number of idle code blocks in the segment k1.
- the first code block 903 (start code block) after the section k2 inserts a quantity flag k2 for identifying the number of all code blocks in the section k2 or the number of idle code blocks.
- the idle code block and the start code block may be changed into code blocks identified by a preset pattern. Referring to the embodiment shown in FIG. 7 and FIG. I will not repeat them here.
- the idle code block 901 carrying the k1 and the start code block 903 carrying the k2 may be identified by using different preset patterns, so that the receiving end device can quickly recover the original code block. Since the start code block and the end code block are usually present in pairs, the pairing relationship of the character "/S/" in the start code block and the character "/T/" in the end code block is satisfied.
- the idle code block for inserting the number flag k1 can be regarded as the start code block of one packet. Alternatively, any one of the idle code blocks following the code block carrying k1 can also be set as the end code block. Also shown is a start code block 905 in which the quantity flag k0 is inserted, which functions similarly to the carried k1 start code block 901 and the carried start code block 903 of k2, and will not be described again here.
- FIG. 10 is a schematic diagram of a code block format according to an embodiment of the present invention.
- a Cyclic Redundancy Check (CRC) check bit such as CRC8, is set for the quantity flag k so that the receiving device can verify the transmission reliability.
- a quantity tag can be inserted in all of the starting code blocks or partial starting code blocks in the original data stream. Inserting a quantity marker in a start code block or an idle code block actually replaces a start code block or an idle code block with a code block carrying a quantity flag.
- the start code block or the idle code block may be first changed to a code block identified by a preset pattern, and then the quantity mark is inserted in the code block identified by the preset pattern. Or first insert a quantity mark in the start code block or the idle code block, and then change the start code block or the idle code block after the insertion quantity mark to the code block of the preset pattern identifier.
- the preset pattern identification code block carrying the quantity tag may also be directly inserted into the position of the start code block or the idle code block, which is not limited in the present invention.
- an idle unit may include multiple idle bytes, for example, idle byte additions and deletions may be performed based on a 4-byte granularity of free cells or an 8-byte granularity of free cells.
- the 8 bytes can correspond to a 64B/66B code block, so it is similar to the post-encoding processing.
- FIG. 11 is a schematic diagram of a format of a data stream according to an embodiment of the present invention. As shown in FIG. 11, the MII byte data stream ⁇ TXC/RXC, TXD/RXD> has a one-to-one correspondence with the 64B/66B code block.
- FIG. 12 is a schematic diagram of a format of a data stream according to an embodiment of the present invention.
- the quantity marker k is inserted in the original data stream.
- the quantity mark k may identify the quantity in units of bytes, may also identify the quantity in units of four bytes, and may also identify the quantity in units of eight bytes.
- the eight-byte unit 1201, 1202 (referred to as a preamble byte unit) in which the control character "/S/" is located at the beginning of the frame of the original data stream is inserted with the number mark k. That is, the quantity flag k can identify the number of data bytes or the number of free bytes of the sector data stream preceding the preamble symbol byte unit.
- FIG. 12 is a schematic diagram of a format of a data stream according to an embodiment of the present invention.
- the quantity marker k is inserted in the original data stream.
- the quantity mark k may identify the quantity in units of bytes, may also identify the quantity in units of four bytes, and
- the frame start control character "/S/" of the eight-byte unit 1201 corresponds to the fifth position of the 64B/66B code block
- the eight-byte unit 1203 frame start control character /S/" corresponds to the 64B/66B code block.
- the first position of the device, and the eight-byte unit carrying k can be identified by a preset byte such as "0x00", "0xFF", etc.
- the field k can also be performed using the C field (CRC). check.
- FIG. 13 is a schematic diagram of another format of a data stream according to an embodiment of the present invention.
- a quantity flag k1 may be inserted in the first eight-byte unit 1303 (idle byte unit) following the section k1 for identifying the number of all data bytes or the number of idle bytes in the section k1.
- the first eight-byte unit 1301 preamble symbol byte unit
- after the section k2 inserts a quantity flag k2 for identifying the number of all data bytes or the number of idle bytes in the section k2. As shown in FIG.
- the start control character "/S/" may correspond to the first position or the fifth position of the 64B/66B code block.
- the eight-byte unit carrying k1 may be identified by a preset byte, for example, "0xFF", "0x00" of the eight-byte unit 1303, “0x9C” of the eight-byte unit 1305, and "octet unit 1307" of the eight-byte unit 1305. 0xF0" and so on.
- the eight-byte unit 1301 carrying k2 can be identified by using preset bytes such as "0x00" and "0xFF".
- the idle byte unit carrying k1 and the preamble byte unit carrying k2 may be identified by using different preset bytes, so that the receiving end device can quickly recover the original eight-byte unit.
- the fields k1, k2 may also be verified using a C field (CRC).
- a quantity marker can be inserted in all preamble symbol byte units or partial preamble symbol byte units in the original data stream. Inserting a quantity flag in a preamble byte unit or an idle byte unit actually replaces a preamble byte unit or an idle byte unit with a unit carrying a quantity flag.
- the preset byte can be inserted first in the preamble byte unit or the idle byte unit, and then the quantity tag is inserted in the unit identified by the preset byte. Alternatively, the quantity tag is inserted in the preamble byte unit or the idle byte unit, and then the preset byte is inserted in the preamble byte unit or the idle byte unit after the number tag is inserted.
- the unit carrying the quantity tag and the preset byte may also be directly inserted into the position of the preamble symbol byte unit or the idle byte unit, which is not limited in the present invention.
- the 8-byte MII byte data stream has a correspondence with the 64B/66B code block. Therefore, the eight-byte unit carrying k, k1, and k2 can correspond to the five coding block formats as shown in FIG.
- the eight-byte units 1201, 1203 of FIG. 12 and the eight-byte unit 1301 of FIG. 13 may correspond to the code block 1401.
- the eight-byte unit 1303 of FIG. 13 may correspond to the code block 1403.
- the eight-byte unit 1305 of FIG. 13 may correspond to the code block 1405.
- the eight-byte unit 1307 of FIG. 13 corresponds to the code block 1407 or the code block 1409.
- the quantity markers k, k1, k2 can be represented by field lengths of 8 bits, 16 bits, 24 bits, 32 bits, and the like. Wherein, when the 8-bit length is used, the expressed range includes 0-255, and when the 16-bit length is used, the expressed range includes 0-65535, and so on, and different bit lengths can be selected according to the length of the segment data stream.
- the original data stream is divided into a plurality of segment data streams, and for each segment data stream, a data unit that can be used for inserting the quantity tag, for example, a start unit, an idle unit, and the like, is searched for.
- the data units used to insert the quantity markers may be located adjacent to the identified segment data stream or may be located at non-adjacent locations.
- the data unit of the inserted quantity tag may be located before the identified segment data stream, or may be located after the identified segment data stream, which is not limited by the present invention.
- the data unit for inserting the quantity tag can identify the starting position of the segment data stream, and can also be used to identify the end position of the segment data stream.
- any one of the start code blocks may identify the start position of the sector data stream in which the start code block is located, and may also identify the end position of the previous sector data stream.
- FIG. 15 is an exemplary flowchart of a method for sending a service according to an embodiment of the present invention. As shown in FIG. 15, the method can be performed by a transmitting device of a flexible Ethernet. Including the following steps:
- S1501 The source device acquires the original data stream.
- the original data stream may be a service including an Interpacket Gap (IPG).
- IPG Interpacket Gap
- Data stream for example, Ethernet packet service data stream.
- the IPG may be an idle unit and has multiple data formats, including, for example, an idle packet of a Media Access Control (MAC) layer or above, an MII idle byte unit, and an idle code block having a physical layer coding format.
- the coding format of the idle code block is, for example, 64B/66B coding, 8B/10B coding, 512B/514B coding, or the like.
- the first data unit can be all data units of the original data stream, and can also be an idle unit of the original data stream.
- the quantity flag k is used to identify the number of all data units in the original data stream, k can be an integer greater than zero.
- the quantity flag k is used to identify the number of free cells in the original data stream, k can be an integer greater than or equal to zero.
- S1505 Send a first data stream carrying the quantity mark k.
- the processing of the 100GE service is similar to that of the 40GE service.
- the 25GE service is similar to the 10GE service process.
- FIG. 16 is a schematic flowchart of data processing of a 40GE physical interface according to an embodiment of the present invention. As shown in FIG.
- the physical layer structure of the 40GE physical interface includes a Physical Coding Sub-layer (PCS) 1601, and also includes a Physical Medium Attachment (PMA) and a Physical Medium Correlation Sublayer ( Any one or more sublayers of Physical Medium Dependent (PMD) and Forward Error Correction (FEC) 1603.
- the physical layer structure of the 40GE physical interface also includes a Reconciliation Sub-layer (RS) (not shown).
- the XLGMII interface is located between the RS and the PCS.
- the sending direction processing 1605 of the PCS may include encoding, scrambling, multi-channel distribution, Alignment Marker (AM) insertion, and the like.
- the receiving direction processing 1607 of the PCS may include multi-channel symbol synchronization, AM locking and channel alignment, bit error rate (BER) monitoring, channel rearrangement, and merging into serial symbols, AM deletion, descrambling codes. , decoding, etc.
- the processing steps shown in Fig. 16 can be referred to the prior art.
- the send direction 1605 after the PCS receives the data stream from the XLGMII interface, it needs to distribute the data stream to multiple channels (multi-channel distribution) and insert AM (AM insertion) on each channel.
- Receive direction 1607 before the PCS sends the data stream to the XLGMII interface, receives the data stream from multiple channels, aligns and reorders the data streams of multiple channels, and restores the serial data stream (multi-channel symbol synchronization, AM) Lock and channel alignment, channel rearrangement and merging into serial symbols), and delete AM (AM delete) for each channel, then descramble and decode.
- serial data stream multi-channel symbol synchronization, AM
- AM Lock and channel alignment, channel rearrangement and merging into serial symbols
- delete AM AM delete
- the original data stream may be received from the 40GE physical interface.
- Step S1503 may be performed after the 40GE physical interface receives the descrambling code of the direction 1607, and may be performed before or after decoding.
- the embodiment of the present invention may be implemented based on the data processing flow shown in FIG. 16, but is not limited to the example shown in FIG. 16.
- the data processing flow may not include an AM deletion step. If the AM is not deleted, when inserting the quantity flag k, it is also necessary to count the AM as a data unit in the original data stream.
- FIG. 17 is a schematic diagram of AM format conversion according to an embodiment of the present invention. As shown in FIG.
- AM code blocks (such as AM0, AM1, AM2, AM3) of data stream A may be replaced with special code blocks in data stream B after AM lock and multi-channel alignment.
- FIG. 18 is a schematic diagram of four code block formats provided by an embodiment of the present invention. As shown in FIG. 18, AM0, AM1, AM2, and AM3 are replaced with code blocks 1801, 1803, 1805, and 1807, respectively. Alternatively, AM0, AM1, AM2, AM3 may also be replaced by four identical code blocks, such as any of the above four code blocks.
- FIG. 19 is a schematic structural diagram of a transmitting end device 1900 according to an embodiment of the present invention.
- the source device 1900 receives the original data stream through the 40GE physical interface PMA/PMD/FEC 1901.
- the 40GE physical interface PCS reception direction process 1903 can refer to the reception direction process 1607 shown in FIG.
- the PCS reception direction processing 1903 can be implemented by a physical circuit or by a logic circuit, and can be implemented by software, hardware, or a combination of software and hardware.
- the insertion quantity flag k 1905 may be implemented in the process of the PCS reception direction process 1903, or may be implemented after the PCS reception direction process 1903.
- the free cells may be added or deleted 1907 to enable rate adaptation. Adding and deleting idle cells such that rate adaptation can be seen in the prior art. Then, the first data stream after the number of tokens k is inserted can be sent out through the 40GE logical port 1911 formed by the flexible Ethernet physical interface (or interface group) 1909.
- FIG. 20 is a schematic flowchart of data processing of a 10GE physical interface according to an embodiment of the present invention.
- the MII of the 10GE physical interface is called XGMII.
- the XGMII uses 32-bit data bit width.
- the frame start control character is aligned with the 4-byte boundary. That is, the frame start control character may be located at the fifth position or the first of the 64B/66B code block. position.
- the physical layer structure of a 10GE physical interface is similar to that of a 40GE physical interface, including any one or more sublayers of PCS 2001 and PMA, PMD, and FEC 2003.
- the transmission direction processing 2005 of the PCS may include encoding and scrambling.
- the reception direction processing 2007 of the PCS may include symbol synchronization, descrambling, and decoding. Because the flexible Ethernet is based on the 100GE physical interface, the logical port is divided into time division multiplex (TDM) according to the 64B/66B code block. Therefore, the code type conversion of the 10GE service is required. That is to say, in the reception direction 2007 of the PCS, decoding (for example, 64B/66B decoding) is performed first, and then the addition and deletion of the idle bytes are performed based on the decoded MII byte data stream.
- decoding for example, 64B/66B decoding
- the data stream can be moved forward or backward by 4 bytes by means of idle byte addition and deletion, so that the frame starts to control characters and The boundary of the 64B/66B code block is aligned.
- the original data stream may be received from the 10GE physical interface, and step S1503 may be performed after the decoding of the 10GE physical interface receiving direction 2007 or before decoding.
- the embodiment of the present invention may be implemented based on the data processing flow shown in FIG. 20, but is not limited to the example shown in FIG. 20.
- the data processing flow may not include the decoding step, and S1503 may be performed after the descrambling code.
- FIG. 21 is a schematic structural diagram of a transmitting end device 2100 according to an embodiment of the present invention.
- the source device 2100 receives the original data stream through the 10GE physical interface PMA/PMD/FEC 2101.
- the 10GE physical interface PCS reception direction processing 2103 can refer to the reception direction processing 2007 shown in FIG.
- the PCS receive direction processing 2103 can be implemented by a physical circuit or by a logic circuit, and can be implemented by software, hardware, or a combination of software and hardware.
- the insertion quantity flag k 2105 may be implemented in the process of the PCS reception direction process 2103, or may be implemented after the PCS reception direction process 2103.
- the idle cells may be incremented by 2107 to enable rate adaptation. Then, the first data stream after the insertion quantity flag k is encoded 2109, and the first data stream is transmitted through the 10GE logical port 2113 formed by the flexible Ethernet physical interface (or interface group) 2111. Alternatively, the insertion quantity flag k 2105 and the idle unit addition and deletion 2107 may be performed before the encoding 2109, and may also be performed after the encoding 2109. If the PCS reception direction is not decoded, no coding is required here.
- FIG. 22 is a flowchart of a method for inserting a quantity mark according to an embodiment of the present invention.
- a counter is set, and when a data unit is received from the original data stream, the value of the counter is incremented by one.
- the data format of the data unit may include a code block, a byte, and the like.
- the data format of the data unit is a code block
- the data unit of the original data stream may include a start code block S, an end code block T, a code block D, and an idle code block Idle, and may also include an AM code block or the like.
- the start unit for example, starts the code block S, and then executes S2203, and the current value of the current counter k (quantity flag k) can be inserted in the current data unit, that is, the current data unit is replaced with the data unit carrying k. Then, clear the counter.
- S2202 If the current data unit is not the start unit, it is determined whether the current data unit can insert the quantity flag k according to the value of the counter.
- S2204 If the value k of the current counter is greater than or equal to a preset threshold, then S2205 determines whether the current data unit can be used to insert the quantity flag k. For example, if the current data unit is an idle unit, the quantity flag k can be inserted in the current free unit. If the current data unit is not an idle unit, then the current data unit can be unit converted and then the quantity flag k is inserted. For example, when the current data unit carries a command word such as a local fault (LF) or a remote fault (RF), the LF, RF, etc.
- LF local fault
- RF remote fault
- Quantity mark k If the current data unit cannot be used to insert the quantity mark k, then S2206 ends the process, receives the next data unit of the original data stream, and determines whether the next data unit can insert the quantity mark k. S2204: If the value k of the current counter is less than the threshold, then S2206, the process ends, and the next data unit of the original data stream continues to be received.
- the threshold value of the value of the counter can be set with reference to the bit length of the bearer number flag k. The longer the bit length, the larger the threshold value can be set.
- the source device carries the quantity mark k in the original data stream, and is used to identify the number of data units or idle units in the original data stream, so that the receiving end device can recover the original data stream according to the quantity mark k.
- the clock frequency and time phase information of the original data stream are obtained, and the transparent transmission of the clock frequency and time phase information of the service is realized.
- FIG. 23 is an exemplary flowchart of a method for receiving a service according to an embodiment of the present invention. As shown in FIG. 23, the method can be performed by a receiving device of a flexible Ethernet. Including the following steps:
- the receiving end device receives the first data stream.
- the addition and deletion of the idle cells may be performed on other devices, such as the intermediate device, to adapt to the rate difference on the line.
- the data format of the first data stream may be the same as the original data stream, or may be different from the original data stream.
- both the original data stream and the first data stream are encoded data streams.
- the original data stream is an unencoded data stream
- the first data stream is an encoded data stream.
- S2303 Extract a quantity mark k in the first data stream, and determine a quantity of the first data unit in the first data stream, where k is greater than or equal to zero.
- the first data unit can be all data units of the original data stream, and can also be an idle unit of the original data stream.
- the quantity flag k is used to identify the number of all data units in the original data stream, k can be an integer greater than zero.
- the quantity flag k is used to identify the number of free cells in the original data stream, k can be an integer greater than or equal to zero.
- the processing of the 100GE service is similar to that of the 40GE service.
- the 25GE service is similar to the 10GE service process.
- the embodiment of the present invention may be implemented based on the data processing flow shown in FIG. 16, but is not limited to the example shown in FIG. 16.
- the data processing flow may not include the AM insertion step.
- the first data stream may be received from the 40GE logical interface, and steps S2303, S2305 may be performed before the 40GE physical interface sends the direction 1605 scrambling code, and may be performed before or after encoding.
- FIG. 24 is a schematic structural diagram of a receiving end device 2400 according to an embodiment of the present invention.
- the receiving end device 2400 receives the first data stream through the 40GE logical port 2403 formed by the flexible Ethernet physical interface (interface group) 2401, and after restoring the first data stream to the original data stream, the restored data may be restored.
- the original data stream is sent to the client device through the 40GE physical interface PMA/PMD/FEC 2409.
- the 40GE physical interface PCS transmission direction processing 2411 can refer to the transmission direction processing 1605 shown in FIG. 16.
- the PCS transmission direction processing 2411 can be implemented by a physical circuit or by a logic circuit, and can be implemented by software, hardware, or a combination of software and hardware.
- the extracted quantity flag k 2405 and the original data recovery 2407 may be implemented in the process of the PCS transmission direction processing 2411, or may be implemented in the 40GE logical port 2403, or may be implemented independently.
- the embodiment of the present invention may be implemented based on the data processing flow shown in FIG. 20, but is not limited to the example shown in FIG. 20, for example, the data processing flow may not include the encoding step.
- the original data stream can be received from the 10GE logical port, and the steps S2303 and S2305 can be performed after the encoding of the 10GE physical interface sending direction processing 2005 or before encoding.
- FIG. 25 is a schematic structural diagram of a receiving end device 2500 according to an embodiment of the present invention.
- the receiving end device 2500 receives the first data stream through the 10GE logical port 2503 formed by the flexible Ethernet physical interface (interface group) 2501, and after restoring the first data stream to the original data stream, the restored data may be restored.
- the original data stream is sent to the client device via the 10GE physical interface PMA/PMD/FEC 2511.
- the 10GE physical interface PCS transmission direction processing 2513 can be referred to the transmission direction processing 2005 shown in FIG.
- the PCS transmission direction processing 2513 can be implemented by a physical circuit or by a logic circuit, and can be implemented by software, hardware, or a combination of software and hardware.
- the extracted quantity flag k 2507 and the original data recovery 2509 may be implemented in the process of the PCS transmission direction processing 2513, or may be implemented in the 10GE logical port 2503, or may be implemented independently. Alternatively, the extracted quantity flag k 2507 and the original data recovery 2509 may be performed after the decoding 2505, and may also be performed before the decoding 2505.
- FIG. 26 is a flowchart of a method for extracting quantity marks according to an embodiment of the present invention.
- a counter is set, and when a data unit is received from the first data stream, the value of the counter is incremented by one.
- the data format of the data unit may include a code block, a byte, and the like.
- the data format of the data unit is a code block
- the data unit of the first data stream may include a start code block S, an end code block T, a code block D, and an idle code block Idle.
- S2602 if the current data unit carries the quantity flag k, execute S2603 to determine whether the quantity flag k is equal to the value kn of the current counter.
- the restored data stream and the original data stream obtained by the source device have the same number of data units, or have the same number of idle units, thereby realizing the recovery of the original data stream.
- FIG. 27 is a schematic structural diagram of a system for clock frequency recovery according to an embodiment of the present invention.
- the transmitting device 2701 and the intermediate device 2703 may add or delete idle cells to implement rate adaptation, and thus the clock frequency may change during transmission.
- the transmitting device 2701 receives the original data stream having the clock frequency f 0 and transmits the first data stream having the clock frequency f 1 .
- the first data stream may be 2703 through at least one intermediate apparatus, the intermediate apparatus 2703 may also change the clock frequency of the first data stream, for example, from f 1 to f 2.
- the sink device 2705 restores the clock frequency f 2 of the first data stream to the clock frequency f 0' of the original data stream.
- the recovered clock frequency f 0 ' may be slightly different from the original clock frequency f 0 , but when the difference between the two is within the allowable range, it can be considered to restore the original clock frequency.
- the method for how the receiving end device 2705 restores the original clock frequency is mainly described.
- the sender device 2701 inserts the quantity flag k, and the receiver device 2705 can extract the quantity flag k from the received data stream.
- the transmitting device 2701, the intermediate device 2703, and the receiving device 2705 need to set a certain buffer space.
- the depth of the buffer queue can be adjusted in real time according to the difference between the number mark k and the value kn of the counter. For example, when the difference between k and kn is large, the depth of the queue is high. Referring to the method flow of FIG.
- the data unit of the first data stream is sent to the cache queue and restored to the original data stream.
- the receiving end device 2705 can monitor the average water level change of the queue in real time, and gradually increase the clock frequency of the original data stream output by the queue when the average water level is gradually increased. As the average water level gradually decreases, the clock frequency of the raw data stream output by the queue is gradually reduced.
- the clock processing circuit can be used to smooth filter the clock frequency of the queue output original data stream to keep the average water level of the queue stable, so as to achieve stable generation of the original clock frequency f 0 ' .
- the receiving end device extracts the quantity mark k from the first data stream, and is used to identify the number of data units or idle units in the original data stream. And the original data stream can be recovered according to the quantity mark k, thereby obtaining the clock frequency and time phase information of the original data stream, and transparent transmission of the clock frequency and time phase information of the service is realized.
- FIG. 28 is a schematic structural diagram of a client device according to an embodiment of the present invention. As shown in FIG. 28, the method of the transmitting end may be performed after the encoding of the 100GE physical interface sending direction 2801, before the scrambling code, and the method of the receiving end may be performed after the descrambling code of the direction 2803 is received by the 100GE physical interface before decoding.
- FIG. 29 is a schematic structural diagram of another client device according to an embodiment of the present invention. As shown in FIG. 29, the method of the transmitting end may be performed before the encoding of the 100GE physical interface sending direction 2901, and the receiving end method may be performed after the decoding of the 100GE physical interface receiving direction 2903.
- the technical solution of the embodiment of the present invention is implemented on the client device, and can be effectively compatible with the existing bearer network.
- FIG. 30 is a schematic structural diagram of an apparatus 3000 for transmitting a service according to an embodiment of the present invention.
- the device can be a flexible Ethernet device, an Ethernet device, an OTN device, an SDH device, or the like.
- the apparatus 3000 may include an acquisition module 3001, an insertion module 3003, and a transmission module 3005.
- each functional module is logically divided, and the manner of division is not unique.
- each module can be a separate circuit module or can be integrated into one circuit module.
- Each module can be implemented in the form of an integrated circuit such as a chip.
- the apparatus 3000 for transmitting a service according to an embodiment of the present invention may perform the method steps of the embodiment shown in FIG.
- the obtaining module 3001 is configured to acquire an original data stream.
- the inserting module 3003 is configured to insert a quantity mark k into the original data stream to generate a first data stream; wherein the quantity mark k is used to identify the number of first data units in the original data stream, the k Greater than or equal to zero.
- the sending module 3005 is configured to send the first data stream.
- the inserting module 3003 is configured to: obtain a first segment data stream from the original data stream, determine a quantity of a first data unit in the first segment data stream; and use the first segment data stream in the first segment data stream Insert the quantity marker in the first position k, the value of the quantity marker k being equal to the number of first data units in the first segment data stream, the first location being the location of the data unit that can be used to carry the quantity marker k.
- the first data unit includes all data units of the first segment data stream, and the k is an integer greater than zero.
- the first data unit is an idle unit of the first segment data stream, and the k is an integer greater than or equal to zero.
- the insertion module 3003 is configured to: identify a start unit of the original data stream; and determine a location where the start unit is located as the first location.
- the insertion module 3003 is configured to: set a threshold of the quantity mark k; and identify a first idleness of the first section data stream when a length of the first section data stream is greater than or equal to the threshold a unit; determining a location where the first idle unit is located as a first location.
- the first data unit is subjected to an encoding process, or the first data unit is not subjected to an encoding process.
- the apparatus 3000 further includes an add/drop module for increasing and/or reducing the number of free cells in the first data stream.
- the device that sends the service carries the quantity mark k in the original data stream, and is used to identify the number of data units or idle units in the original data stream, so that the device receiving the service can recover the original data according to the quantity mark k.
- the stream thereby obtaining the clock frequency and time phase information of the original data stream, realizes transparent transmission of the clock frequency and time phase information of the service.
- FIG. 31 is a schematic structural diagram of an apparatus 3100 for receiving a service according to an embodiment of the present invention.
- the device can be a flexible Ethernet device, an Ethernet device, an OTN device, an SDH device, or the like.
- the apparatus may include: a receiving module 3101, an extracting module 3103, and a restoring module 3105.
- each functional module is logically divided, and the manner of division is not unique.
- each module can be a separate circuit module or can be integrated into one circuit module.
- Each module can be implemented in the form of an integrated circuit such as a chip.
- the apparatus 3100 for transmitting a service according to an embodiment of the present invention may perform the method steps of the embodiment shown in FIG.
- the receiving module 3101 is configured to receive the first data stream.
- the extracting module 3103 is configured to extract the quantity mark k in the first data stream, and determine the number of the first data unit in the first data stream, where the k is greater than or equal to zero.
- the recovery module 3105 is configured to restore the first data stream to the original data stream, where the number of first data units in the original data stream is equal to the k.
- the extracting module 3103 is configured to: obtain a first segment data stream from the first data stream, determine a first location in the first segment data stream, and extract a quantity marker from the first location k, the first location is a location where a data unit capable of carrying the quantity marker k is located.
- the first data unit includes all data units of the first segment data stream, and the k is an integer greater than zero.
- the first data unit is an idle unit of the first segment data stream, and the k is an integer greater than or equal to zero.
- the recovery module 3105 is configured to: determine the number m of the first data unit in the first segment data stream, and adjust the first data in the first segment data stream according to the difference between the m and the k The number m of cells, such that m is equal to k.
- the recovery module 3105 is configured to: when the m is greater than k, reduce mk idle units in the first segment data stream; when m is less than k, add km in the first segment data stream Free units.
- the device 3100 further includes: a clock module, configured to acquire a clock frequency of the original data stream.
- the device receiving the service extracts the quantity mark k from the first data stream, and is used to identify the number of data units or idle units in the original data stream. And can recover the original data stream according to the quantity mark k, thereby obtaining The clock frequency and time phase information of the original data stream are obtained, and the clock frequency and time phase information of the service are transparently transmitted.
- FIG. 32 is a schematic structural diagram of a network system according to an embodiment of the present invention.
- the network system can be a flexible Ethernet, Ethernet, OTN, SDH network, and the like.
- the network system may include at least two network devices, such as a network device 3201 and a network device 3203.
- Each network device may be a transmitting network device or a receiving network device, and may have a structure as shown in FIG. 30 and/or FIG.
- FIG. 33 is a schematic structural diagram of a network device according to an embodiment of the present invention.
- the network device can be a flexible Ethernet device, an Ethernet device, an OTN device, an SDH device, or the like.
- the network device 3300 may include a processor 3301, a memory 3302, at least one network interface (eg, a network interface 3303, a network interface 3304), and a processing chip 3305.
- the processor 3301 can be a general-purpose central processing unit (CPU), a microprocessor, a network processing unit (NPU), an application specific integrated circuit (ASIC), or At least one integrated circuit is used to execute the related program to implement the technical solution provided by the embodiment of the present invention.
- CPU central processing unit
- NPU network processing unit
- ASIC application specific integrated circuit
- the memory 3302 may be a read only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM).
- the memory 3302 can store an operating system and other applications.
- the program code for implementing the technical solution provided by the embodiment of the present invention is stored in the memory 3302 and executed by the processor 3301.
- Network interfaces 3303, 3304 implement communication between network device 3300 and other devices or communication networks using transceivers such as, but not limited to, transceivers.
- the network interfaces 3303, 3304 may have a transmitting function or a receiving function, and may also have a transmitting function and a receiving function.
- the network interfaces 3303, 3304 may be logical ports (such as logical ports formed by several time slots), or may be physical interfaces (for example, a flexible Ethernet physical interface of 100G).
- the processing chip 3305 can be implemented by an ASIC, a Field-Programmable Gate Array (FPGA), or the like.
- a dedicated chip that can implement the technical solution of the present invention can also be a general-purpose chip that includes the functions of the technical solution of the present invention.
- network device 3300 obtains the original data stream through network interface 3303 or 3304.
- the network device 3300 executes the code stored in the memory 3302 by the processor 3301 or the code executed by the processing chip 3305 to perform its own storage, by: inserting a quantity mark k into the original data stream to generate a first data stream; wherein the quantity mark k is used to identify the number of first data units in the original data stream, the k being greater than or equal to zero.
- the first data stream is transmitted over network interface 3304 or 3303.
- network device 3300 receives the first data stream through network interface 3303 or 3304.
- the network device 3300 executes the code stored in the memory 3302 by the processor 3301 or the code executed by the processing chip 3305 to perform its own storage, and implements: extracting the quantity mark k in the first data stream, and determining the first data unit in the first data stream. a quantity, the k being greater than or equal to zero; restoring the first data stream to the original data stream, the number of first data units in the original data stream being equal to the k.
- the technical solution of any one embodiment of the present invention can be implemented by using the network device 3300 shown in FIG.
- the device 3000 of FIG. 30 and the device 3100 of FIG. 31 may be implemented using the structure and scheme of the network device 3300.
- the network device 3300 shown in FIG. 33 only shows the processor 3301, the memory 3302, the network interfaces 3303, 3304, and the processing chip 3305, in the specific implementation process, those skilled in the art should White, network device 3300 also contains other devices necessary to achieve normal operation.
- the network device 3300 may also include hardware devices that implement other additional functions, depending on the particular needs.
- the network device 3300 further includes a power source, a fan, a clock unit, a main control unit, and the like.
- network device 3300 may also only include the components necessary to implement embodiments of the present invention, and does not necessarily include all of the devices shown in FIG.
- the network device at the transmitting end carries the quantity mark k in the original data stream, and is used to identify the number of data units or idle units in the original data stream. Therefore, the receiving end network device can determine the number of data units or idle units in the original data stream according to the quantity flag k, thereby recovering the original data stream, obtaining the clock frequency and time phase information of the original data stream, and realizing the clock frequency of the service and Transparent transmission of time phase information.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
Description
Claims (31)
- 一种发送业务的方法,其特征在于,所述方法包括:发送端设备获取原始数据流;在所述原始数据流中***数量标记k,生成第一数据流;其中,所述数量标记k用于标识所述原始数据流中第一数据单元的数量,所述k大于或等于零;发送所述第一数据流。
- 如权利要求1所述的方法,其特征在于,所述在所述原始数据流中***数量标记k,包括:从所述原始数据流中获取第一区段数据流,确定所述第一区段数据流中第一数据单元的数量;在所述第一区段数据流中的第一位置***数量标记k,所述数量标记k的值等于所述第一区段数据流中第一数据单元的数量,所述第一位置为能够用于承载所述数量标记k的数据单元所在的位置。
- 如权利要求2所述的方法,其特征在于,所述第一数据单元包括所述第一区段数据流的全部数据单元,所述k为大于零的整数。
- 如权利要求2所述的方法,其特征在于,第一数据单元为所述第一区段数据流的空闲单元,所述k为大于或等于零的整数。
- 如权利要求2-4任一所述的方法,其特征在于,所述从所述原始数据流中获取第一区段数据流,包括:识别所述原始数据流的开始单元;将所述开始单元所在的位置确定为所述第一位置。
- 如权利要求2-4任一所述的方法,其特征在于,从所述原始数据流中获取第一区段数据流,包括:设置所述数量标记k的阈值;当所述第一区段数据流的长度大于或等于所述阈值时,识别所述第一区段数据流的第一空闲单元;将所述第一空闲单元所在的位置确定为第一位置。
- 如权利要求1-6任一所述的方法,其特征在于,所述第一数据单元经过编码处理,或者,所述第一数据单元未经过编码处理。
- 如权利要求1-7任一所述的方法,其特征在于,所述生成第一数据流之后,还包括:增加和/或减少所述第一数据流中空闲单元的数量。
- 一种接收业务的方法,其特征在于,所述方法包括:接收端设备接收第一数据流;在所述第一数据流中提取数量标记k,确定所述第一数据流中第一数据单元的数量,所述k大于或等于零;将所述第一数据流恢复为所述原始数据流,所述原始数据流中第一数据单元的数量等于所述k。
- 如权利要求9所述的方法,其特征在于,所述在所述第一数据流中提取数量标记k,包括:从所述第一数据流中获取第一区段数据流,确定所述第一区段数据流中的第一位置,从所述第一位置中提取数量标记k,所述第一位置为能够用于承载所述数量标记k的数据单元所在的位置。
- 如权利要求10所述的方法,其特征在于,所述第一数据单元包括所述第一区段数据流的全部数据单元,所述k为大于零的整数。
- 如权利要求10所述的方法,其特征在于,第一数据单元为所述第一区段数据流的空闲单元,所述k为大于或等于零的整数。
- 如权利要求10-12任一所述的方法,其特征在于,所述将所述第一数据流恢复为所述原始数据流,包括:确定所述第一区段数据流中第一数据单元的数量m,根据所述m与k的差值,调整所述第一区段数据流中第一数据单元的数量m,使得m等于k。
- 如权利要求13所述的方法,其特征在于,所述根据所述m与k的差值,调整所述第一区段数据流中第一数据单元的数量m,包括:当所述m大于k时,在所述第一区段数据流减少m-k个空闲单元;当m小于k时,在所述第一区段数据流中增加k-m个空闲单元。
- 如权利要求9-14任一所述的方法,其特征在于,所述方法还包括:获取所述原始数据流的时钟频率。
- 一种发送业务的装置,其特征在于,所述装置包括:获取模块,用于获取原始数据流;***模块,用于在所述原始数据流中***数量标记k,生成第一数据流;其中,所述数量标记k用于标识所述原始数据流中第一数据单元的数量,所述k大于或等于零;发送模块,用于发送所述第一数据流。
- 如权利要求16所述的装置,其特征在于,所述***模块,用于:从所述原始数据流中获取第一区段数据流,确定所述第一区段数据流中第一数据单元的数量;在所述第一区段数据流中的第一位置***数量标记k,所述数量标记k的值等于所述第一区段数据流中第一数据单元的数量,所述第一位置为能够用于承载所述数量标记k的数据单元所在的位置。
- 如权利要求17所述的装置,其特征在于,所述第一数据单元包括所述第一区段数据流的全部数据单元,所述k为大于零的整数。
- 如权利要求17所述的装置,其特征在于,第一数据单元为所述第一区段数据流的空闲单元,所述k为大于或等于零的整数。
- 如权利要求17-19任一所述的装置,其特征在于,所述***模块,用于:识别所述原始数据流的开始单元;将所述开始单元所在的位置确定为所述第一位置。
- 如权利要求17-19任一所述的装置,其特征在于,所述***模块,用于:设置所述数量标记k的阈值;当所述第一区段数据流的长度大于或等于所述阈值时,识别所述第一区段数据流的第一空闲单元;将所述第一空闲单元所在的位置确定为第一位置。
- 如权利要求16-21任一所述的装置,其特征在于,所述第一数据单元经过编码处理,或者,所述第一数据单元未经过编码处理。
- 如权利要求16-22任一所述的装置,其特征在于,所述装置还包括:增删模块,用于增加和/或减少所述第一数据流中空闲单元的数量。
- 一种接收业务的装置,其特征在于,所述装置包括:接收模块,用于接收第一数据流;提取模块,用于在所述第一数据流中提取数量标记k,确定所述第一数据流中第一数据单元的数量,所述k大于或等于零;恢复模块,用于将所述第一数据流恢复为所述原始数据流,所述原始数据流中第一数据单元的数量等于所述k。
- 如权利要求24所述的装置,其特征在于,所述提取模块,用于:从所述第一数据流中获取第一区段数据流,确定所述第一区段数据流中的第一位置,从所述第一位置中提取数量标记k,所述第一位置为能够用于承载所述数量标记k的数据单元所在的位置。
- 如权利要求25所述的装置,其特征在于,所述第一数据单元包括所述第一区段数据流的全部数据单元,所述k为大于零的整数。
- 如权利要求25所述的装置,其特征在于,第一数据单元为所述第一区段数据流的空闲单元,所述k为大于或等于零的整数。
- 如权利要求25-27任一所述的装置,其特征在于,所述恢复模块,用于:确定所述第一区段数据流中第一数据单元的数量m,根据所述m与k的差值,调整所述第一区段数据流中第一数据单元的数量m,使得m等于k。
- 如权利要求28所述的装置,其特征在于,所述恢复模块,用于:当所述m大于k时,在所述第一区段数据流减少m-k个空闲单元;当m小于k时,在所述第一区段数据流中增加k-m个空闲单元。
- 如权利要求24-29任一所述的装置,其特征在于,所述装置还包括:时钟模块,用于获取所述原始数据流的时钟频率。
- 一种网络***,其特征在于,所述***包括如权利要求16-23任一所述的装置,以及如权利要求24-30任一所述的装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019511366A JP6867473B2 (ja) | 2016-08-25 | 2017-08-22 | サービスを送信するための方法および装置、サービスを受信するための方法および装置、ならびにネットワークシステム |
EP17842907.2A EP3496344B1 (en) | 2016-08-25 | 2017-08-22 | Methods and apparatuses for sending and receiving service, and network system |
KR1020197008011A KR102209296B1 (ko) | 2016-08-25 | 2017-08-22 | 서비스를 전송 및 수신하기 위한 방법들 및 장치들, 및 네트워크 시스템 |
US16/282,690 US10715306B2 (en) | 2016-08-25 | 2019-02-22 | Method and apparatus for sending service, method and apparatus for receiving service, and network system |
US16/922,568 US11038664B2 (en) | 2016-08-25 | 2020-07-07 | Method and apparatus for sending service, method and apparatus for receiving service, and network system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610723799.6A CN107786320B (zh) | 2016-08-25 | 2016-08-25 | 一种发送和接收业务的方法、装置和网络*** |
CN201610723799.6 | 2016-08-25 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/282,690 Continuation US10715306B2 (en) | 2016-08-25 | 2019-02-22 | Method and apparatus for sending service, method and apparatus for receiving service, and network system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018036485A1 true WO2018036485A1 (zh) | 2018-03-01 |
Family
ID=61246435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2017/098490 WO2018036485A1 (zh) | 2016-08-25 | 2017-08-22 | 一种发送和接收业务的方法、装置和网络*** |
Country Status (6)
Country | Link |
---|---|
US (2) | US10715306B2 (zh) |
EP (1) | EP3496344B1 (zh) |
JP (1) | JP6867473B2 (zh) |
KR (1) | KR102209296B1 (zh) |
CN (1) | CN107786320B (zh) |
WO (1) | WO2018036485A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3678672A4 (en) * | 2017-09-06 | 2021-06-02 | Nantcell, Inc. | ALDOXORUBICIN-BASED METHODS AND POLYTHERAPIES |
JP2021533656A (ja) * | 2018-08-07 | 2021-12-02 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | コードブロックストリームの受信方法、コードブロックストリームの送信方法、および通信装置 |
EP4012993A4 (en) * | 2019-08-13 | 2022-11-02 | Huawei Technologies Co., Ltd. | METHOD AND DEVICE FOR TRANSMISSION OF SERVICE DATA |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109962762B (zh) * | 2017-12-25 | 2020-06-16 | 华为技术有限公司 | 一种数据传输方法、发送装置及接收装置 |
CN110417542B (zh) * | 2018-04-26 | 2022-03-18 | 中兴通讯股份有限公司 | 一种传输客户业务的方法、装置和*** |
CN111147181B (zh) * | 2018-11-02 | 2022-12-09 | 中兴通讯股份有限公司 | 业务发送方法、接收方法、装置及***、存储介质 |
CN112751645A (zh) * | 2019-10-29 | 2021-05-04 | 华为技术有限公司 | 一种通信方法、设备及存储介质 |
CN113078980A (zh) * | 2019-12-18 | 2021-07-06 | 华为技术有限公司 | 一种数据传输的方法以及装置 |
CN113972989B (zh) * | 2020-07-06 | 2023-09-15 | 宇龙计算机通信科技(深圳)有限公司 | 数据校验方法及存储介质、电子设备 |
US11483087B2 (en) * | 2020-08-07 | 2022-10-25 | Hyannis Port Research, Inc. | Systems and methods for clock synchronization using special physical layer clock sync symbols |
CN117294579A (zh) * | 2022-06-17 | 2023-12-26 | 华为技术有限公司 | 数据处理装置、主备切换方法以及*** |
WO2024067959A1 (en) * | 2022-09-28 | 2024-04-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatus of communicating in a physical coding sublayer |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1747474A (zh) * | 2005-10-18 | 2006-03-15 | 中兴通讯股份有限公司 | 支持多载波高速下行分组接入的数据并行调度***及方法 |
CN101061466A (zh) * | 2004-11-19 | 2007-10-24 | 三星电子株式会社 | 用于处理闪速存储器的数据的装置和方法 |
CN101123584A (zh) * | 2007-05-21 | 2008-02-13 | 华为技术有限公司 | 一种测量ip链路丢包情况的方法及设备 |
WO2008149448A1 (ja) * | 2007-06-07 | 2008-12-11 | Fujitsu Limited | 動画像類似判定装置、符号化装置、および特徴量算出方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5384774A (en) * | 1993-01-11 | 1995-01-24 | At&T Corp. | Asynchronous transfer mode (ATM) payload synchronizer |
JP3169335B2 (ja) | 1996-03-06 | 2001-05-21 | 三菱電機株式会社 | 回線接続装置 |
JPH11298488A (ja) * | 1998-04-13 | 1999-10-29 | Oki Electric Ind Co Ltd | パケット伝送方法及び装置、並びにネットワーク |
DE10241718B4 (de) * | 2002-09-09 | 2011-03-31 | Texas Instruments Deutschland Gmbh | Vorrichtung und Verfahren zum Aufbereiten von Datenzellen |
JP3875948B2 (ja) | 2002-11-29 | 2007-01-31 | 日本電信電話株式会社 | フレーム信号処理方法及び中継装置 |
JP4110964B2 (ja) * | 2002-12-25 | 2008-07-02 | 日本電気株式会社 | 伝送システムおよびデータ転送方法 |
US7512150B2 (en) | 2003-03-24 | 2009-03-31 | Applied Micro Circuits Corporation | 10 GbE LAN signal mapping to OTU2 signal |
US7809017B2 (en) * | 2006-09-21 | 2010-10-05 | Nortel Networks Limited | Multi-rate transparent MUX for optical communications networks |
CN101335751A (zh) * | 2007-06-29 | 2008-12-31 | 华为技术有限公司 | 将以太网编码块映射到光传输网络传输的方法及装置 |
CN101335750B (zh) * | 2007-06-29 | 2012-08-08 | 华为技术有限公司 | 将以太网编码块映射到光传输网络传输的方法及装置 |
JP4885820B2 (ja) | 2007-10-24 | 2012-02-29 | 日本電信電話株式会社 | ディジタル伝送装置およびディジタル伝送プログラム |
EP2073459A1 (en) | 2007-12-17 | 2009-06-24 | Alcatel-Lucent Deutschland AG | Transmission via a burst or frame switched network with timing preservation of the transmitted client packets |
WO2009115481A1 (en) | 2008-03-20 | 2009-09-24 | Nokia Siemens Networks Oy | Method and device for data processing via a gigabit ethernet optical transmission link |
JP4878648B2 (ja) | 2010-03-12 | 2012-02-15 | 日本電信電話株式会社 | クライアント信号収容多重装置及び方法 |
CN102761489B (zh) * | 2012-07-17 | 2015-07-22 | 中国科学技术大学苏州研究院 | 基于流水线模式的数据包零拷贝的核间通信方法 |
CN105122763B (zh) * | 2014-01-14 | 2018-08-14 | 华为技术有限公司 | 以太网信号传送方法、调度方法及其装置和*** |
CN103916217B (zh) * | 2014-03-25 | 2017-06-13 | 烽火通信科技股份有限公司 | Xlgmii接口多通道降频dic机制的实现方法及装置 |
CN111147185A (zh) * | 2015-01-22 | 2020-05-12 | 华为技术有限公司 | 一种利用以太网信道传输业务信号的方法及通信设备 |
-
2016
- 2016-08-25 CN CN201610723799.6A patent/CN107786320B/zh active Active
-
2017
- 2017-08-22 EP EP17842907.2A patent/EP3496344B1/en active Active
- 2017-08-22 WO PCT/CN2017/098490 patent/WO2018036485A1/zh unknown
- 2017-08-22 JP JP2019511366A patent/JP6867473B2/ja active Active
- 2017-08-22 KR KR1020197008011A patent/KR102209296B1/ko active IP Right Grant
-
2019
- 2019-02-22 US US16/282,690 patent/US10715306B2/en active Active
-
2020
- 2020-07-07 US US16/922,568 patent/US11038664B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101061466A (zh) * | 2004-11-19 | 2007-10-24 | 三星电子株式会社 | 用于处理闪速存储器的数据的装置和方法 |
CN1747474A (zh) * | 2005-10-18 | 2006-03-15 | 中兴通讯股份有限公司 | 支持多载波高速下行分组接入的数据并行调度***及方法 |
CN101123584A (zh) * | 2007-05-21 | 2008-02-13 | 华为技术有限公司 | 一种测量ip链路丢包情况的方法及设备 |
WO2008149448A1 (ja) * | 2007-06-07 | 2008-12-11 | Fujitsu Limited | 動画像類似判定装置、符号化装置、および特徴量算出方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3496344A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3678672A4 (en) * | 2017-09-06 | 2021-06-02 | Nantcell, Inc. | ALDOXORUBICIN-BASED METHODS AND POLYTHERAPIES |
JP2021533656A (ja) * | 2018-08-07 | 2021-12-02 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | コードブロックストリームの受信方法、コードブロックストリームの送信方法、および通信装置 |
JP7192195B2 (ja) | 2018-08-07 | 2022-12-20 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | コードブロックストリームの受信方法、コードブロックストリームの送信方法、および通信装置 |
US11902403B2 (en) | 2018-08-07 | 2024-02-13 | Huawei Technologies Co., Ltd. | Method for receiving code block stream, method for sending code block stream, and communications apparatus |
EP4012993A4 (en) * | 2019-08-13 | 2022-11-02 | Huawei Technologies Co., Ltd. | METHOD AND DEVICE FOR TRANSMISSION OF SERVICE DATA |
Also Published As
Publication number | Publication date |
---|---|
US20190190690A1 (en) | 2019-06-20 |
EP3496344A1 (en) | 2019-06-12 |
US11038664B2 (en) | 2021-06-15 |
US20200336283A1 (en) | 2020-10-22 |
EP3496344A4 (en) | 2019-07-03 |
KR102209296B1 (ko) | 2021-01-29 |
EP3496344B1 (en) | 2023-06-21 |
JP2019531642A (ja) | 2019-10-31 |
JP6867473B2 (ja) | 2021-04-28 |
CN107786320B (zh) | 2021-06-22 |
CN107786320A (zh) | 2018-03-09 |
KR20190039300A (ko) | 2019-04-10 |
US10715306B2 (en) | 2020-07-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018036485A1 (zh) | 一种发送和接收业务的方法、装置和网络*** | |
US9954644B2 (en) | Ethernet data processing method, physical layer chip and Ethernet equipment | |
WO2017202158A1 (zh) | 转发数据的方法和设备 | |
US20220416895A1 (en) | Data transmission method and apparatus, terminal device and storage medium | |
US7986622B2 (en) | Method and system for physical layer aggregation | |
US20180159785A1 (en) | Data Transmission Method, Transmitter, and Receiver | |
JP6736701B2 (ja) | サービス送信方法及び装置、サービス受信方法及び装置、並びにネットワーク・システム | |
WO2018036482A1 (zh) | 一种发送和接收业务的方法、装置和网络*** | |
CN110768742B (zh) | Oam消息的传输方法、发送设备、接收设备及可读存储介质 | |
WO2015035618A1 (zh) | 传输数据的方法和装置 | |
US9544237B1 (en) | Method and apparatus for inserting idle bytes in a data stream | |
US20230164624A1 (en) | Service data processing, exchange and extraction methods, devices, and computer-readable medium | |
WO2019128665A1 (zh) | 一种数据传输方法、通信设备及存储介质 | |
WO2021082468A1 (zh) | 一种通信方法、设备及存储介质 | |
CN117938738A (zh) | 一种通信方法及装置 |
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: 17842907 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2019511366 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2017842907 Country of ref document: EP Effective date: 20190308 |
|
ENP | Entry into the national phase |
Ref document number: 20197008011 Country of ref document: KR Kind code of ref document: A |