WO2020038424A1 - 数据包的传输方法、装置、存储介质及电子装置 - Google Patents

数据包的传输方法、装置、存储介质及电子装置 Download PDF

Info

Publication number
WO2020038424A1
WO2020038424A1 PCT/CN2019/101875 CN2019101875W WO2020038424A1 WO 2020038424 A1 WO2020038424 A1 WO 2020038424A1 CN 2019101875 W CN2019101875 W CN 2019101875W WO 2020038424 A1 WO2020038424 A1 WO 2020038424A1
Authority
WO
WIPO (PCT)
Prior art keywords
data packet
code block
predetermined data
information
feature code
Prior art date
Application number
PCT/CN2019/101875
Other languages
English (en)
French (fr)
Inventor
王�华
张思栋
赵福川
王强
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to BR112021003214-2A priority Critical patent/BR112021003214A2/pt
Publication of WO2020038424A1 publication Critical patent/WO2020038424A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • 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
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • 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
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0084—Formats for payload data

Definitions

  • the present disclosure relates to the field of communications, for example, to a method, device, storage medium, and electronic device for transmitting data packets.
  • the network is divided into an access layer, an aggregation layer, a backbone aggregation layer, and a core layer.
  • a new wireless access network Centralized-Radio Access Network, C-RAN
  • C-RAN Centralized-Radio Access Network
  • 5G baseband processing unit Building Baseband Unit, BBU
  • CU centralized unit
  • DU distributed unit
  • 5G C-RAN will include The first-stage fronthaul radio remote unit-distributed unit (RRU-DU) and the two-stage fronthaul DU-CU have a two-stage architecture.
  • the division of CU and DU functions is distinguished by the real-time nature of the processing content.
  • CU equipment includes non-real-time wireless high-level protocol stack functions, and also supports some core network function user plane (UP) sinking and edge application services. Deployment, while the DU equipment handles physical layer functions and L2 functions for real-time requirements.
  • UP core network function user plane
  • the fronthaul technical solution includes a direct fiber optic connection solution and a fronthaul equipment bearing solution.
  • the fronthaul bearing equipment solution needs to achieve the equivalent optical fiber direct connection performance, which poses a huge challenge to the delay jitter and symmetry of the equipment;
  • idle characters are used to add and delete in response to changes in the physical coding sublayer (PCS) clock rate
  • start characters start
  • Terminate T
  • Control Character Orderered_set, O
  • Flexible Ethernet (FlexE) technology was launched by the Optical Internetworking Forum (OIF) of the International Organization for Standardization in March 2015 and formally voted to pass related technical documents in March 2016.
  • Flexible Ethernet technology provides a universal mechanism to transmit a series of services with different Media Access Control (MAC) rates, which can be services with a single MAC rate or multiple services with relatively low MAC rates. The set is no longer limited to services with a single MAC rate.
  • MAC Media Access Control
  • flexible Ethernet has a cushion layer (FlexEShim) at the MAC layer and the physical coding sublayer (full name: Physical Coding Sublayer (PCS)).
  • the function is to build a calendar (Calendar) with a size of 20 * n 66b blocks, n is the number of bound physical layer (Physical, PHY) of Ethernet, each 66b block represents a 5G time slot.
  • services with different MAC rates are packed into 66b blocks corresponding to multiples of 5G. Every 20 66b blocks form a sub-Calendar, and Calendars with a size of 20 * n are distributed into n sub-Calendars.
  • each sub-Calendar For each sub-Calendar, an overhead of 66b blocks is added every 20 * 1023 66b blocks to store the related mapping relationship. Each sub-Calendar is transmitted in a single 100G Ethernet PHY. On the demultiplexing side, n sub-Calendars form a Calendar with a size of 20 * n, and the corresponding customer service is extracted from the corresponding number of 66b blocks according to the mapping relationship stored in the overhead.
  • the overhead is defined by O code extension.
  • jitter occurs due to the insertion of overhead and addition or deletion of IDLE when transmitting a data packet, which affects data transmission performance or clock time performance.
  • the embodiments of the present disclosure provide a method, a device, a storage medium, and an electronic device for transmitting a data packet, so as to at least solve a problem that jitters easily occur when transmitting a data packet in the related art and affect data transmission performance or clock time performance.
  • a data packet transmission method including: inserting time stamp information into a feature code block of a predetermined data packet to be processed in a first device to obtain a target data packet, wherein
  • the characteristic code block is a code block including characteristic information in the predetermined data packet, and the time stamp information is used to identify a sending time or phase of the characteristic code block; and sending the target data packet to a second device.
  • a data packet transmission method including: receiving a target data packet from a first device on a second device, wherein the target data packet is a characteristic of a predetermined data packet A data packet obtained by inserting time stamp information into a code block, where the characteristic code block is a code block including characteristic information in the predetermined data packet, and the time stamp information is used to identify a sending time of the characteristic code block or Phase; performing a restoration process on the target data packet to obtain the predetermined data packet.
  • a data packet transmission device including: an inserting module configured to insert time stamp information into a feature code block of a predetermined data packet to be processed in a first device to obtain a target A data packet, wherein the characteristic code block is a code block including characteristic information in the predetermined data packet, and the time stamp information is used to identify a sending time or phase of the characteristic code block; the sending module is configured to The target data packet is sent to the second device.
  • a data packet transmission apparatus including: a receiving module configured to receive a target data packet from a first device on a second device, wherein the target data packet is at A data packet obtained by inserting time stamp information into a characteristic code block of a predetermined data packet, where the characteristic code block is a code block including characteristic information in the predetermined data packet, and the time stamp information is used to identify the characteristic code Sending time or phase of a block; a restoration module, configured to perform restoration processing on the target data packet to obtain the predetermined data packet.
  • a storage medium having a computer program stored therein, wherein the computer program is configured to execute the method of any one of the foregoing when run.
  • an electronic device including a memory and a processor, the memory stores a computer program, and the processor is configured to run the computer program to execute any one of the above. Methods.
  • FIG. 1 is a block diagram of a hardware structure of a terminal of a data packet transmission method according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a data packet transmission method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a feature code block format according to an embodiment of the present disclosure.
  • FIG. 5 is a networking diagram of user service transmission according to the first embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram according to the first embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram according to the first embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram according to a second embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram according to a third embodiment of the present disclosure.
  • FIG. 10 is a structural block diagram of a data packet transmission device according to an embodiment of the present disclosure.
  • FIG. 11 is a structural block diagram of another data packet transmission apparatus according to an embodiment of the present disclosure.
  • FIG. 12 is a structural block diagram of a source end and a sink end according to an embodiment of the present disclosure.
  • FIG. 1 is a block diagram of a hardware structure of a terminal in a data packet transmission method according to an embodiment of the present disclosure.
  • the terminal 10 may include one or more (only one shown in FIG. 1) a processor 102 (the processor 102 may include a microprocessor (Microprogrammed Control Unit, MCU) or a programmable logic device (Field Programmable A processing device such as a gate array (FPGA) and a memory 104 for storing data.
  • the terminal may further include a transmission device 106 and an input / output device 108 for communication functions.
  • the structure shown in FIG. 1 is only schematic, and does not limit the structure of the foregoing terminal.
  • the terminal 10 may further include more or fewer components than those shown in FIG. 1, or have a different configuration from that shown in FIG. 1.
  • the memory 104 may be configured to store a computer program, for example, a software program and module of application software, such as a computer program corresponding to a data packet transmission method in the embodiment of the present disclosure.
  • the processor 102 runs the computer program stored in the memory 104. Thus, one or more functional applications and data processing are executed, that is, the above method is implemented.
  • the memory 104 may include a high-speed random access memory, and may further include a non-volatile memory, such as one or more magnetic storage devices, a flash memory, or other non-volatile solid-state memory.
  • the memory 104 may include memory remotely set with respect to the processor 102, and these remote memories may be connected to the terminal 10 through a network. Examples of the above network include the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the transmission device 106 is configured to receive or transmit data via a network.
  • the above-mentioned specific examples of the network may include a wireless network provided by a communication provider of the terminal 10.
  • the transmission device 106 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network equipment through a base station so as to communicate with the Internet.
  • the transmission device 106 may be a radio frequency (RF) module, which is configured to communicate with the Internet in a wireless manner.
  • RF radio frequency
  • An embodiment of the present application provides a method for transmitting a data packet that can run on the foregoing terminal, and relates to a method for carrying bandwidth compression to carry low-jitter services, for example, to a transparent transmission service bearer solution.
  • This embodiment describes this embodiment:
  • FIG. 2 is a flowchart of a data packet transmission method according to an embodiment of the present disclosure. As shown in FIG. 2, the solution is described from a first device side (that is, a source side), and the process includes S202 and S204.
  • S202 Insert time stamp information into a characteristic code block of a predetermined data packet to be processed in the first device to obtain a target data packet, where the characteristic code block is a code block including characteristic information in the predetermined data packet, The time stamp information is used to identify a sending time or phase of the signature block.
  • the execution subject of the above steps may be a first device (also referred to as a source device, which may be a base station or a terminal, etc.), but is not limited thereto.
  • the above-mentioned predetermined data packet may be a data packet in the PCS layer original code stream defined by the user side 802.3, including data packets in 8B / 10B, 64 / 66B code blocks, and the predetermined data packets in the subsequent embodiments are the same.
  • a source time stamp counter T may be started at the source end, and then the above time stamp information is inserted.
  • inserting timestamp information into the feature code block of the predetermined data packet can make the data receiving side accurately know the sending time of the feature code block in the predetermined data packet, and based on the sending of the feature code block, The original predetermined data packet is restored, thereby achieving the transparent transmission of end-to-end zero jitter services, which effectively solves the problems in related technologies that are prone to jitter when transmitting data packets and affects data transmission performance or clock time performance.
  • the method before sending the target data packet to the second device, the method further includes: detecting idle characters in the predetermined data packet (also referred to as IDLE information, or IDLE is performed for short.
  • the predetermined data packet includes more than two data packets, and the idle character is located between the two or more data packets.
  • adding or deleting idle characters is an optional processing manner, and idle characters may not be processed, that is, the original idle characters are retained.
  • adding and deleting the idle characters in the predetermined data packet includes one of the following modes: Method 1: performing the adding and deleting processing on the idle characters in the predetermined data packet according to the frequency offset; Manner 2: On the premise of ensuring that the predetermined data packet meets the predetermined frame gap requirements and idle characters required for rate adaptation, the redundant idle characters in the predetermined data packet are deleted.
  • Method 1 performing the adding and deleting processing on the idle characters in the predetermined data packet according to the frequency offset
  • Manner 2 On the premise of ensuring that the predetermined data packet meets the predetermined frame gap requirements and idle characters required for rate adaptation, the redundant idle characters in the predetermined data packet are deleted.
  • the first method of this embodiment most of the IDLEs can be retained, and only a small number of IDLEs are added or deleted according to the frequency offset.
  • redundant IDLEs are deleted in a large amount, and only a small amount can meet the minimum frame gap requirements and rate of 802.3. Adapt the required IDLE; in order to achieve the purpose of compressing service bandwidth without
  • the method before the time stamp information is inserted into the feature code block of the predetermined data packet to be processed in the first device, the method further includes at least one of the following: A first target feature code block to be inserted with the timestamp information is selected from the feature code blocks; a second target feature code block is set in the predetermined data packet, and the second target feature code block is used as the The feature code block of the time stamp information is described.
  • selecting the first target feature code block to be inserted with the timestamp information from the original feature code blocks in the predetermined data packet includes: setting a first time threshold; In the case where a start character (that is, a start character may be abbreviated as S) exists in the first time threshold, selecting a start character within the first time threshold as the first target feature code block; in an optional In an embodiment, setting a second target feature code block in the predetermined data packet includes: setting a second time threshold; and in a case where it is determined that a start character does not exist within the second time threshold, in the first A control character (ordered_set character, may be abbreviated as O) is set within the two time thresholds, and the set control character is used as the second target feature code block.
  • a start character that is, a start character may be abbreviated as S
  • setting a second target feature code block in the predetermined data packet includes: setting a second time threshold; and in a case where it is determined that a start character does not exist within the second
  • setting the control character within the second time threshold includes one of the following: inserting the control character within the second time threshold; and inserting the original character within the second time threshold Is replaced with the control character.
  • the first target feature code block carries at least low-order timestamp information and a carry flag; the second target feature code block carries at least high-order timestamp information or Carry flag.
  • the S block since the S block has characteristic information, it can be used as a type of characteristic code block; however, the redundant bits are limited, and the absence of S for a long time (that is, exceeding the above-mentioned time threshold) may cause the timestamp information carried to cyclically exceed the boundary; Therefore, a time threshold can be set to carry only the low-order timestamp information and the carry flag corresponding to the time threshold; if no S block appears within the time threshold, one of the IDLEs can be replaced with a carry feature code and carried. Current timestamp high-level information or carry flag; the above-mentioned carry feature code may use a special information block that conforms to the 802.3 standard, such as an O-code block, to appropriately extend the O-code block.
  • the IDLE may be replaced, or the O code block may be directly inserted.
  • the above characteristic code block carries at least one of the following information: time phase information, carry flag, customer flag, sequence number, and Cyclic Redundancy Check (CRC) value.
  • the customer logo can be used to distinguish different sub-customer numbers, each feature code of the serial number is increased by 1, and is used for the continuity check or error correction of the sink (that is, the above-mentioned second device); protection.
  • the format of the feature code block is shown in FIG. 3.
  • FIG. 3 is a schematic diagram of the format of the feature code block according to an embodiment of the present disclosure.
  • the carry flag in the above embodiment is used to indicate the number of times that the counter cycle crosses the boundary.
  • the receiving side that is, the second device
  • sending the target data packet to the second device includes: performing rate adaptation on the target data packet; and retransmitting the target data packet into a transmission pipe according to the adapted rate, And sending the target data packet to the second device through the transmission pipe.
  • the user code block that is, the above-mentioned target data packet
  • the timestamp information can be used as service data for rate adaptation and loaded into the transmission pipeline, allowing subsequent processes to adapt to the rate and frequency. Partial addition and deletion of IDLE.
  • the appropriate addition or deletion of IDLE can meet the performance requirements of some business transmissions; meanwhile, the IDLE can be fully utilized Purpose of the remaining IDLE bandwidth.
  • FIG. 4 is a flowchart of another method for transmitting a data packet according to an embodiment of the present disclosure. As shown in FIG. 4, the solution is described from a second device side (that is, a sink end), and the process includes S402 to S404.
  • S402. Receive a target data packet from the first device on the second device, where the target data packet is a data packet obtained by inserting time stamp information into a characteristic code block of a predetermined data packet, where the characteristic code block Is a code block including characteristic information in the predetermined data packet, and the time stamp information is used to identify a sending time or phase of the characteristic code block.
  • S404 Perform a restoration process on the target data packet to obtain the predetermined data packet.
  • the sink device (which may be a base station, a terminal, etc.) performs the foregoing operations.
  • inserting timestamp information into the characteristic code block of the predetermined data packet can enable the second device and the data receiving side to accurately know the transmission of the characteristic code block in the predetermined data packet. Time, and restore the original scheduled data packet based on the transmission of the feature code block, thereby achieving the transparent transmission of end-to-end zero jitter services, effectively solving the problem that jitters are easy to occur when transmitting data packets in related technologies, which affects data transmission performance Or clock time performance issues.
  • receiving the target data packet from the first device on the second device includes: extracting (or separating) the target data packet (ie, a service data block) from a transmission pipeline.
  • performing a restoration process on the target data packet to obtain the predetermined data packet includes: identifying a characteristic code block in the target data packet; and calibrating the identified characteristic code block. To obtain a legal feature code block; extract time stamp information from the legal feature code block; and recover the predetermined data packet at a time corresponding to the time stamp information.
  • recovering the predetermined data packet at a time corresponding to the timestamp information includes: generating an idle character of an interface rate with a timestamp counter according to an interface rate at which data is sent to a user in a downlink direction. A pipeline; determining the second device and the first device according to the receiving time of receiving the first feature code block in the legal feature code block and the time stamp information carried in the first feature code block A difference between the two, wherein the difference includes a time difference or a phase difference; and the predetermined data packet is restored in the idle character pipe according to the time stamp information carried in the legal feature code block and the difference.
  • an IDLE pipe with a user interface rate with a timestamp counter T ' can be generated according to the user rate; wherein the sink timestamp T' can be time synchronized with the source T It can also be unsynchronized. Whether it is synchronized depends on the implementation scheme.
  • the type of the feature code block into which the timestamp information is inserted includes at least one of the following: a start character type, wherein the feature code block of the start character type carries at least low time stamp information and a carry flag; control A character type, wherein the feature code block of the control character type carries at least high-order information of the timestamp and a carry flag.
  • the S feature code block may only carry the low-order information of the timestamp, and the high-order bits may be generated according to whether the carry flag or the high-order timestamp information is carried; the information may be derived from the carry feature code block, such as an extended O block.
  • the feature code block in which the time stamp information is inserted carries at least one of the following information: time phase information, carry flag, customer flag, sequence number, and cyclic redundancy check CRC value.
  • the source user side accesses the user service (corresponding to the aforementioned predetermined data packet) through the 25G ecpri port (that is, the interface rate between the RRU and the fronthaul device 1), and the packet length and traffic are random values. ; Between fronthaul device 1 and fronthaul device 2 is 100G FlexE.
  • the steps for transparently transmitting user services to the sink are as follows:
  • Step 1 Process user services, including steps 1.1-1.2.
  • Step 1.1 Start a time timer T, consisting of high Th and low T1; low Tl represents the number of user clocks by 32bits; high Th represents the units of seconds by 24bit; for 25G ecpri interface, the user clock is usually 390.625M, pcs
  • the interface is xgmii 64 / 66B as defined by 802.3; that is, the low-order timestamp is carried for 1s every 390625000 user clock cycles.
  • Step 1.2 The time stamp corresponding to S1 is t1; the time stamp corresponding to S2 is t2; and so on, and the time stamp corresponding to Si is ti.
  • t1 0.1s
  • t2 0.7s
  • t3 2.1s.
  • Step 2 In the rate adaptation and service mapping module, the service data code and the specific identification code block are loaded into the flexe slot as customer data, and IDLE can be added or deleted according to the rate adaptation and frequency offset.
  • each time slot is 5G particles IDLE can be added or deleted according to the rate or frequency offset, and a Flexe overhead is inserted every 1023 * 20 blocks, and 20 alignment (am) blocks are inserted every 16,383 blocks; the impact on business jitter is shown in Figure 6 Shown
  • Step 3 In the service extraction module at the receiving end, extract service code blocks from the FlexE time slot and parse out the characteristic code blocks.
  • customer data is recovered from the corresponding 5 time slots; the effective blocks such as S, D, T, and O are buffered into the rate adaptation first-in-first-out (FIFO), and all are deleted. Redundant IDLE blocks.
  • Step 4 According to the timestamp information extracted from the feature code block, restore the user data stream at the corresponding time, including steps 4.1-4.4.
  • Step 4.1 Generate a wire-speed IDLE pipeline with a timestamp timer T ′ according to the user rate; the format of the timestamp counter is the same as the source.
  • Step 4.3 Each subsequent reading of an S signature code with a timestamp ti starts inserting the data of this frame at ti + dt of the IDLE pipeline, and the data starts from S and ends at T.
  • Step 4.4 After restoring the data, finally restore the S signature to 802.3 standard S blocks.
  • FIG. 7 A schematic diagram of this embodiment is shown in FIG. 7.
  • S only carries the low-order information of the timestamp, and the high-order is identified by the O code
  • steps 1.2 and 4 The difference between the second embodiment and the first embodiment lies in steps 1.2 and 4, and steps 1.2 and 4 in this embodiment are described below:
  • Step 1.2 Set the threshold value to 1s, carry the first carry block in the user's 66 / 64B code stream per second with the high-level carry flag, and add the current low-order timestamp information T1 in each S block to generate a special S block .
  • Step 4 Restore the user data stream at the corresponding time according to the timestamp information extracted from the specific identification code block.
  • Step 4.1 Generate a wire-speed IDLE pipe with a timestamp timer T ′ according to the user rate.
  • Step 4.2 Record the time t0 'at which the feature code S1 arrives at the sink at the first moment, the high bit is th0', the low bit is t10 ', and the difference between the time stamp and the low bit t0 carried by the signature is recorded as dt;
  • Step 4.3 For each subsequent time stamped feature code, perform the following operations:
  • FIG. 8 for a schematic diagram of this embodiment.
  • Step 2 in this embodiment includes the following operations:
  • the user service in this embodiment deletes most of the redundant IDLE after inserting the timestamp identifier, and only retains the minimum frame gap requirement of the 802.3 protocol, and IDLE that meets the needs of positive and negative 100ppm frequency offset adjustment; then adapt to the 10G flexe pipeline;
  • FIG. 9 for a schematic diagram of this embodiment.
  • the transmission pipeline is not limited to FlexE, and the feature code block may have multiple formats in implementation.
  • the technical solution of the present disclosure is essentially in the form of a software product that contributes to the related technology.
  • the computer software product is stored in a storage medium (such as Read-Only Memory (ROM) / random).
  • Random-Access Memory (RAM), magnetic disks, and optical disks include multiple instructions to enable a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to perform multiple implementations of the present disclosure.
  • a data packet transmission device is also provided.
  • the device is configured to implement the foregoing embodiments and optional implementation manners, and the descriptions will not be repeated.
  • the term "module” may implement a combination of software and / or hardware for a predetermined function.
  • the devices described in the following embodiments may be implemented in software, hardware, or a combination of software and hardware, is also possible and conceived.
  • FIG. 10 is a structural block diagram of a data packet transmission device according to an embodiment of the present disclosure. As shown in FIG. 10, the device includes the following modules:
  • the inserting module 1002 is configured to insert time stamp information into a characteristic code block of a predetermined data packet to be processed in the first device to obtain a target data packet, wherein the characteristic code block includes characteristic information in the predetermined data packet.
  • the time stamp information is used to identify the sending time or phase of the characteristic code block; the sending module 1004 is configured to send the target data packet to a second device.
  • the above device further includes: a processing module configured to add or delete idle characters in the predetermined data packet before sending the target data packet to the second device, where
  • the predetermined data packet includes more than two data packets, and the idle character is located between the two or more data packets.
  • the processing module may add or delete idle characters in the predetermined data packet in one of the following ways: perform the addition or deletion of idle characters in the predetermined data packet according to a frequency offset. Deleting the redundant idle characters in the predetermined data packet on the premise that the predetermined data packet meets the predetermined frame gap requirements and idle characters required for rate adaptation.
  • the foregoing apparatus is further configured to perform at least one of the following operations before inserting time stamp information into a feature code block of a predetermined data packet to be processed in the first device: from the predetermined data packet A first target feature code block to be inserted with the timestamp information is selected from the original feature code blocks in the original; a second target feature code block is set in the predetermined data packet, and the second target feature code block is used as a standby Insert a feature code block of the timestamp information.
  • the above device may select a first target feature code block to be inserted with the timestamp information from the original feature code blocks in the predetermined data packet in the following manner: setting a first time threshold In the case of determining that a startup character exists within the first time threshold, selecting a startup character within the first time threshold as the first target feature code block.
  • the foregoing device may set a second target feature code block in the predetermined data packet in the following manner: setting a second time threshold; and determining that no start character exists within the second time threshold In the case of setting, a control character is set within the second time threshold, and the set control character is used as the second target feature code block.
  • the above device may set a control character within the second time threshold in one of the following ways: insert the control character within the second time threshold; and set the second time threshold The original free characters within are replaced with the control characters.
  • the first target feature code block carries at least low time stamp information and a carry flag; the second target feature code block carries at least high time stamp information or a carry flag.
  • the characteristic code block carries at least one of the following information: time phase information, carry flag, customer flag, sequence number, and cyclic redundancy check CRC value.
  • the sending module 1004 may send the target data packet to the second device by: performing rate adaptation on the target data packet; and sending the target data according to the adapted rate.
  • the packet is reproduced into a transmission pipeline, and the target data packet is sent to the second device through the transmission pipeline.
  • the foregoing predetermined data packet is a data packet in a physical coding sublayer PCS original code stream.
  • FIG. 11 is a structural block diagram of another data packet transmission apparatus according to an embodiment of the present disclosure. As shown in FIG. 11, the apparatus includes the following module receiving module 1102 and a restoration module 1104.
  • the receiving module 1102 is configured to receive a target data packet from a first device on a second device, where the target data packet is a data packet obtained by inserting timestamp information into a characteristic code block of a predetermined data packet, so that The characteristic code block is a code block including characteristic information in the predetermined data packet, and the timestamp information is used to identify a sending time or phase of the characteristic code block;
  • the restoration module 1104 is configured to perform a process on the target data packet. The restoration process obtains the predetermined data packet.
  • the receiving module 1102 may receive a target data packet from the first device in the following manner: extracting the target data packet from a transmission pipeline.
  • the restoration module 1104 includes the following units: an identification unit configured to identify a feature code block in the target data packet; and a verification module configured to perform an operation on the identified feature code block. Check to obtain a legal feature code block; an extraction module configured to extract time stamp information from the legal feature code block; a recovery module configured to recover the predetermined data packet at a time corresponding to the time stamp information .
  • the recovery unit is configured to recover the predetermined data packet by: generating an idle character pipe with an interface rate of a timestamp counter according to an interface rate at which data is sent to a user in a downstream direction. Determining between the second device and the first device according to a receiving time of receiving the first feature code block in the legal feature code block and time stamp information carried in the first feature code block; A difference value, wherein the difference value includes a time difference and a phase difference; and the predetermined data packet is restored in the idle character pipe according to the time stamp information carried in the legal feature code block and the difference value.
  • the type of the feature code block into which the timestamp information is inserted includes at least one of the following: a start character type, wherein the feature code block of the start character type carries at least low time stamp information and a carry A flag; a control character type, wherein the feature code block of the control character type carries at least high-time stamp information or a carry flag.
  • the feature code block in which the time stamp information is inserted carries at least one of the following information: time phase information, carry flag, customer flag, sequence number, and cyclic redundancy check CRC value.
  • the foregoing predetermined data packet is a data packet in a physical coding sublayer PCS original code stream.
  • the source end may include a sending processing module.
  • the sending processing module includes the following modules:
  • the timestamp insertion module 1202 (corresponding to the aforementioned insertion module 1002) is set to insert time stamp information in the PCS layer original code stream defined by the user side 802.3 to identify the time or phase of the original code stream at the source end;
  • the rate adaptation and service mapping module 1204 (corresponding to the aforementioned sending module 1004) is configured to use the customer data code block and the specific identification code block as service data to perform rate adaptation and load it into the transmission pipeline;
  • the sink may include a receiving processing module, and the receiving processing module may include the following modules:
  • the service extraction module 1206 (corresponding to the aforementioned receiving module 1102) is configured to extract a service code block from a transmission pipeline and parse out a characteristic code block;
  • the data recovery module 1208 (corresponding to the aforementioned restoration module 1104) is configured to restore the user data code stream according to the time scale in the IDLE pipeline according to the time stamp information extracted from the specific identification code block;
  • multiple cross-connect modules are allowed to access, and the cross-connect module is configured to perform physical layer crossover on the transmission pipe service data.
  • the multiple modules can be implemented by software or hardware.
  • the following methods can be implemented, but not limited to the above: the above modules are all located in the same processor; or the multiple modules In any combination, they are located in different processors.
  • An embodiment of the present disclosure further provides a storage medium that stores a computer program therein, wherein the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.
  • the foregoing storage medium may include: a universal serial bus flash disk (Universal Serial Bus flash disk (U disk)), a read-only memory (Read-Only Memory (ROM), and a random access memory (ROM) Random (Access, Memory, RAM), mobile hard disk, magnetic disk or compact disc and other media that can store computer programs.
  • a universal serial bus flash disk Universal Serial Bus flash disk (U disk)
  • ROM Read-Only Memory
  • ROM random access memory
  • RAM Random
  • mobile hard disk magnetic disk or compact disc and other media that can store computer programs.
  • An embodiment of the present disclosure further provides an electronic device including a memory and a processor.
  • the memory stores a computer program
  • the processor is configured to run the computer program to perform the method of any one of the above.
  • the electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the processor, and the input-output device is connected to the processor.
  • the above-mentioned multiple modules or multiple steps of the present disclosure may be implemented by a general-purpose computing device. They may be centralized on a single computing device or distributed on a network composed of multiple computing devices. Alternatively, they may Implemented with program code executable by a computing device so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be performed in a different order than here , Or they are made into one or more integrated circuit modules, or multiple modules or steps in them are made into a single integrated circuit module. As such, the present disclosure is not limited to a specific combination of hardware and software.

Abstract

本公开提供了一种数据包的传输方法、装置、存储介质及电子装置，该方法包括：在第一设备中的待处理的预定数据包的特征码块中插入时间戳信息，得到目标数据包，其中，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位；将上述目标数据包发送给第二设备。

Description

数据包的传输方法、装置、存储介质及电子装置
本申请要求在2018年08月22日提交中国专利局、申请号为201810961321.6的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及通信领域，例如涉及一种数据包的传输方法、装置、存储介质及电子装置。
背景技术
传统第二代移动通信技术(2-Generation wireless telephone technology，2G)，第三代移动通信技术(3rd-Generation，3G)，第四代移动通信技术(the 4th Generation mobile communication technology，4G)回传网络分为接入层、汇聚层、骨干汇聚层、核心层，4G时代引入了新型无线接入网(Centralized-Radio Access Network，C-RAN)前传网络。第五代移动通信技术(the 5th Generation mobile communication technology，5G)时代，由于无线频谱资源提升及大规模多输入多输出系统(Massive Multiple Input Multiple Output，Massive MIMO)多天线技术的发展，传统无线接入网(Radio Access Network，RAN)架构下的通用公共无线接口(Common Public Radio Interface，CPRI)难以承载巨大的带宽，进行架构重构。重构之后，5G的基带处理单元(Building Base band Unit，BBU)功能将被划分为集中单元(Centralized Unit，CU)和分布单元(Distributed Unite，DU)两个功能实体，5G C-RAN将包含一级前传射频拉远单元-分布单元(Radio Remote Unit-Distributed Unite，RRU-DU)和二级前传DU-CU两级架构。CU与DU功能的切分以处理内容的实时性进行区分，CU设备包括非实时的无线高层协议栈功能，同时也支持部分核心网功能用户面(User Plane，UP)下沉和边缘应用业务的部署，而DU设备则处理物理层功能和实时性需求的L2功能。
另外，5G时代由于载波聚合、多点协同、5G超短帧结构、高精度定位等新技术的应用，要求基站间满足百纳秒级的超高精度，与此同时传输网络需具备更高精度的时间传送能力。
前传技术方案包括光纤直连方案和前传设备承载方案；为减少设备间的耦合，前传承载设备方案需要达到等同光纤直连性能，对设备的时延抖动、对称性提出了巨大的挑战；
802.3定义了几类编码：其中空闲字符(IDLE，I)，用于适应物理编码子层(Physical Coding Sublayer，PCS)时钟速率变化而添加和删除；启动字符(Start，S)用于指示数据包的起始；终止字符(Terminate，T)用于指示一个数据包的 终止；控制字符(Ordered_set，O)用于发送基于链接的控制和状态信息的一种扩展。
灵活以太网(Flexible Ethernet，FlexE)技术由国际标准化组织光互联网论坛(Optical Internetworking Forum，OIF)于2015年3月发起研究并于2016年3月正式表决通过相关的技术文档。灵活以太网技术提供一种通用的机制来传送一系列不同介质访问控制(Media Access Control，MAC)速率的业务，可以是单个MAC速率比较大的业务，也可以是多个MAC速率比较小的业务的集合，不再限定为单一MAC速率的业务。
灵活以太网与相关技术中的以太网结构上的区别在于灵活以太网在MAC层和物理编码子层(全称为Physical Coding Sublayer，PCS)层多了一个垫层(FlexE Shim)，该垫层的功能是构建一个大小为20*n个66b块的日历(Calendar)，n为绑定的以太网物理层(Physical，PHY)个数，每个66b块代表一个5G的时隙。在复用侧，不同MAC速率的业务按照与5G的倍数关系，装进对应个数66b块中。每20个66b块构成一个sub-Calendar，大小为20*n的Calendar分布到n个子日历(sub-Calendar)中。对于每个sub-Calendar，每20*1023个66b块添加一个66b块的开销，用来存储相关的映射关系，每个sub-Calendar在单个100G的以太网PHY中传送。在解复用侧，n个sub-Calendar组成一个大小为20*n的Calendar，根据开销中存储的映射关系从相应个数的66b块中提取出对应的客户业务。其中，开销采用O码扩展定义。但是，相关技术中在传输数据包时由于开销的插入以及IDLE的增删会导致出现抖动，影响数据传输性能或时钟时间性能。
针对相关技术中存在的上述问题，尚未提出有效的解决方案。
发明内容
本公开实施例提供了一种数据包的传输方法、装置、存储介质及电子装置，以至少解决相关技术中传输数据包时容易出现抖动，影响数据传输性能或时钟时间性能的问题。
根据本公开的一个实施例，提供了一种数据包的传输方法，包括：在第一设备中的待处理的预定数据包的特征码块中插入时间戳信息，得到目标数据包，其中，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位；将所述目标数据包发送给第二设备。
根据本公开的一个实施例，还提供了一种数据包的传输方法，包括：在第二设备上接收来自第一设备的目标数据包，其中，所述目标数据包为在预定数 据包的特征码块中插入了时间戳信息后得到的数据包，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位；对所述目标数据包进行还原处理，得到所述预定数据包。
根据本公开的一个实施例，还提供了一种数据包的传输装置，包括：插入模块，设置为在第一设备中的待处理的预定数据包的特征码块中插入时间戳信息，得到目标数据包，其中，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位；发送模块，设置为将所述目标数据包发送给第二设备。
根据本公开的一个实施例，还提供了一种数据包的传输装置，包括：接收模块，设置为在第二设备上接收来自第一设备的目标数据包，其中，所述目标数据包为在预定数据包的特征码块中插入了时间戳信息后得到的数据包，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位；还原模块，设置为对所述目标数据包进行还原处理，得到所述预定数据包。
根据本公开的又一个实施例，还提供了一种存储介质，所述存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行上述任一项的方法。
根据本公开的又一个实施例，还提供了一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行上述任一项的方法。
附图说明
图1是本公开实施例的一种数据包的传输方法的终端的硬件结构框图；
图2是根据本公开实施例的一种数据包的传输方法的流程图；
图3是根据本公开实施例的特征码块格式示意图；
图4是根据本公开实施例的另一种数据包的传输方法的流程图；
图5是根据本公开实施例一的用户业务传输的组网图；
图6是根据本公开实施例一的原理图；
图7是根据本公开实施例一的示意图；
图8是根据本公开实施例二的示意图；
图9是根据本公开实施例三的示意图；
图10是根据本公开实施例的一种数据包的传输装置的结构框图；
图11是根据本公开实施例的另一种数据包的传输装置的结构框图；
图12是根据本公开实施例的源端和宿端的结构框图。
具体实施方式
下文中将参考附图并结合实施例来说明本公开。在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
本公开的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
本申请实施例中所提供的方法实施例可以在移动终端、计算机终端或者类似的运算装置中执行。图1是本公开实施例的一种数据包的传输方法的终端的硬件结构框图。如图1所示，终端10可以包括一个或多个(图1中仅示出一个)处理器102(处理器102可以包括微处理器(Microprogrammed Control Unit，MCU)或可编程逻辑器件(Field Programmable Gate Array，FPGA)等的处理装置)和用于存储数据的存储器104，可选地，上述终端还可以包括用于通信功能的传输设备106以及输入输出设备108。图1所示的结构仅为示意，并不对上述终端的结构造成限定。例如，终端10还可包括比图1中所示更多或者更少的组件，或者具有与图1所示不同的配置。
存储器104可设置为存储计算机程序，例如，应用软件的软件程序以及模块，如本公开实施例中的数据包的传输方法对应的计算机程序，处理器102通过运行存储在存储器104内的计算机程序，从而执行一或多种功能应用以及数据处理，即实现上述的方法。存储器104可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器104可包括相对于处理器102远程设置的存储器，这些远程存储器可以通过网络连接至终端10。上述网络的实例包括互联网、企业内部网、局域网、移动通信网及其组合。
传输装置106设置为经由一个网络接收或者发送数据。上述的网络具体实例可包括终端10的通信供应商提供的无线网络。在一个实例中，传输装置106包括一个网络适配器(Network Interface Controller，NIC)，可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中，传输装置106可以为射频(Radio Frequency，RF)模块，设置为通过无线方式与互联网进行通讯。
在本申请实施例中提供了一种可以运行于上述终端的数据包的传输方法，涉及一种带宽压缩承载低抖动业务的方法，例如涉及透明传输业务承载解决方 案。下面对本实施例进行说明：
图2是根据本公开实施例的一种数据包的传输方法的流程图，如图2所示，该方案是从第一设备端(即源端)描述的，该流程包括S202和S204。
S202，在第一设备中的待处理的预定数据包的特征码块中插入时间戳信息，得到目标数据包，其中，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位。
S204，将上述目标数据包发送给第二设备。
在一实施例中，上述步骤的执行主体可以为第一设备(也可以称为源端设备，可以是基站或终端等)，但不限于此。上述的预定数据包可以是用户侧802.3定义的PCS层原始码流中的数据包，包括8B/10B，64/66B码块中的数据包，后续的实施例中的预定数据包也是一样的。在上述实施例中，在待处理的预定数据包的特征码块中插入时间戳信息之前，可以先在源端启动一个时间戳计数器T，然后再插入上述时间戳信息。
通过上述步骤，在发送数据前，在预定数据包的特征码块中插入时间戳信息，可以使得数据接收侧准确获知预定数据包中的特征码块的发送时间，并且基于特征码块的发送来还原出原始的预定数据包，从而实现了端到端零抖动业务透明传输，有效解决相关技术中存在的在传输数据包时容易出现抖动，影响数据传输性能或时钟时间性能的问题。
在一个可选的实施例中，在将所述目标数据包发送给所述第二设备之前，所述方法还包括：对所述预定数据包中的空闲字符(也可以称为IDLE信息，或直接简称为IDLE)进行增删处理，其中，所述预定数据包中包括两个以上数据包，所述空闲字符位于所述两个以上数据包之间。在一实施例中，对空闲字符进行增加或删除处理是可选的处理方式，也可以不对空闲字符进行处理，即，保留原始的空闲字符。
在一个可选的实施例中，对所述预定数据包中的空闲字符进行增删处理包括以下方式之一：方式一：根据频偏对所述预定数据包中的空闲字符进行所述增删处理；方式二：在保证所述预定数据包满足预定帧间隙要求及速率适配所需的空闲字符的前提下，对所述预定数据包中的冗余空闲字符进行删除。在本实施例的方式一中，可以保留大部分的IDLE，只是根据频偏少量增删IDLE，在方式二中，是对冗余IDLE进行大量删除，只保留少量能满足802.3最小帧间隙要求及速率适配所需IDLE；以达到压缩业务带宽目的，而不影响下游原始数据还原。
在一个可选的实施例中，在第一设备中的待处理的预定数据包的特征码块 中插入时间戳信息之前，所述方法还包括以下至少之一：从所述预定数据包中原有的特征码块中选取待插入所述时间戳信息的第一目标特征码块；在所述预定数据包中设置第二目标特征码块，并将所述第二目标特征码块作为待插入所述时间戳信息的特征码块。
在一个可选的实施例中，从所述预定数据包中原有的特征码块中选取待插入所述时间戳信息的第一目标特征码块，包括：设定第一时间阈值；在确定在所述第一时间阈值内存在启动字符(即，start字符，可以简称为S)的情况下，选取所述第一时间阈值内的启动字符作为所述第一目标特征码块；在一个可选的实施例中，在所述预定数据包中设置第二目标特征码块，包括：设定第二时间阈值；在确定所述第二时间阈值内不存在启动字符的情况下，在所述第二时间阈值内设置控制字符(ordered_set字符，可以简称为O)，并将设置的所述控制字符作为所述第二目标特征码块。
在一个可选的实施例中，在所述第二时间阈值内设置控制字符包括以下之一：在所述第二时间阈值内插入所述控制字符；将所述第二时间阈值内的原有的空闲字符替换成所述控制字符。
在一个可选的实施例中，包括以下至少之一：所述第一目标特征码块中至少携带时间戳低位信息和进位标志；所述第二目标特征码块中至少携带时间戳高位信息或进位标志。
在上述实施例中，由于S块具有特征信息，可作为一种特征码块；但冗余位有限，长时间(即，超过上述时间阈值)未出现S可能导致携带的时间戳信息循环越界；因此，可设定一个时间阈值，只携带时间阈值对应的低位时间戳信息以及进位标志；如果在所述时间阈值范围内都未出现S块，可将其中某个IDLE替换成进位特征码，携带当前时间戳高位信息或进位标志；上述进位特征码可采用符合802.3标准的一种特殊信息块，例如O码块，对O码块进行适当扩展。在上述实施例中，可以是替换IDLE，也可以是直接插入O码块。
在一个可选的实施例中，上述特征码块中携带以下信息至少之一：时间相位信息、进位标志、客户标志、序列号、循环冗余校验(Cycle Redundancy Check，CRC)值。其中，客户标志可用于区分不同子客户号，序列号每个特征码加1，用于宿端(即，上述的第二设备)连续性校验或纠错；CRC可采用CRC4算法对数据进行保护。在一实施例中，特征码块的格式如图3所示，图3是根据本公开实施例的特征码块格式示意图。上述实施例中的进位标志用于指示计数器循环越界的次数，其中，接收侧(即，第二设备)可以根据进位标志，还原出高位时间戳信息。
在一个可选的实施例中，将所述目标数据包发送给第二设备包括：对所述 目标数据包进行速率适配；按照适配的速率将所述目标数据包转载到传输管道中，并通过所述传输管道将所述目标数据包发送给所述第二设备。在本实施例中，插入了时间戳信息的用户码块(即得到的上述目标数据包)可以作为业务数据，进行速率适配，并装载到传输管道中，允许后续流程根据速率适配及频偏增删IDLE。由于有效数据(即，预定数据包中除空闲字符外的客户数据)图案不会受增删IDLE的影响，适当的增删IDLE可以满足某些业务传输的性能要求；同时，删除IDLE后能实现充分利用剩余IDLE带宽的目的。
以上多个实施例是从源端侧进行描述的。下面对宿端侧设备所执行的动作进行说明：
图4是根据本公开实施例的另一种数据包的传输方法的流程图，如图4所示，该方案是从第二设备端(即宿端)描述的，该流程包括S402至S404。
S402，在第二设备上接收来自第一设备的目标数据包，其中，所述目标数据包为在预定数据包的特征码块中插入了时间戳信息后得到的数据包，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位。
S404，对所述目标数据包进行还原处理，得到所述预定数据包。
其中，执行上述操作的是宿端设备(可以是基站，终端等)。
在上述实施例中，在第一设备发送数据前，在预定数据包的特征码块中插入时间戳信息，可以使得第二设备及，数据接收侧准确获知预定数据包中的特征码块的发送时间，并且基于特征码块的发送来还原出原始的预定数据包，从而实现了端到端零抖动业务透明传输，有效解决相关技术中存在的在传输数据包时容易出现抖动，影响数据传输性能或时钟时间性能的问题。
在一个可选的实施例中，在第二设备上接收来自第一设备的目标数据包，包括：从传输管道中提取(或称为分离)所述目标数据包(即，业务数据块)。
在一个可选的实施例中，对所述目标数据包进行还原处理，得到所述预定数据包，包括：在所述目标数据包中识别出特征码块；对识别出的特征码块进行校验，得到合法的特征码块；从所述合法的特征码块中提取时间戳信息；在与所述时间戳信息对应的时刻恢复所述预定数据包。
在一个可选的实施例中，在与所述时间戳信息对应的时刻恢复所述预定数据包包括：根据在下行方向上向用户发送数据的接口速率产生带时间戳的计数器的接口速率的空闲字符管道；根据接收所述合法的特征码块中的第一个特征码块的接收时间以及所述第一个特征码块中携带的时间戳信息确定所述第二设备和所述第一设备之间的差值，其中，该差值包括时间差或相位差；根据所述 合法的特征码块中携带的时间戳信息和所述差值在所述空闲字符管道中恢复出所述预定数据包。
在上述实施例中，在接收到目标数据包之后，可以根据用户速率，产生一个带时间戳计数器T’的用户接口速率的IDLE管道；其中宿端时间戳T’可以和源端T进行时间同步，也可以不同步，是否同步取决于实施方案；在时间同步的情况下，还可按准确的延时进行业务恢复或时延补偿；记录第一时刻特征码块到达宿端的时间t0’，与特征码块中携带的时间戳t0的相对差值记为dt，其中dt＝t0’-t0；后续每接收到一个带时间戳ti的S特征码块，在IDLE管道的ti+dt开始插入本帧数据，所述数据从S开始，到T(终止字符terminate的简称)结束。
在上述实施例中，插入了时间戳信息的特征码块的类型包括以下至少之一：启动字符类型，其中，所述启动字符类型的特征码块中至少携带时间戳低位信息和进位标志；控制字符类型，其中，所述控制字符类型的特征码块中至少携带时间戳高位信息和进位标志。其中，S特征码块可只携带时间戳的低位信息，高位可根据是否带进位标志或高位时间戳信息产生；所述信息可来源于进位特征码块，如扩展O块。
在一个可选的实施例中，插入了时间戳信息的特征码块中携带以下信息至少之一：时间相位信息、进位标志、客户标志、序列号、循环冗余校验CRC值。
下面结合实施例对本公开进行说明：在本公开实施例中给出一种解决方法，可以透明传输客户业务，达到理论零抖动性能；下面针对OIF定义的FlexE传输管道，给出了三种实施方式，但在实现中不局限于FlexE管道，也可以是灵活光传送网(Flex Optical Transport Network，FlexO)等，这些变化都在本公开保护范围。实现方式如下：
实施例一
如图5所示，源端用户侧通过25G ecpri口(即，RRU和前传设备1之间的接口速率)接入用户业务(对应于前述的预定数据包)，包长和流量均为随机值；前传设备1和前传设备2之间是100G FlexE。将用户业务透明传输到宿端的步骤如下：
步骤1：对用户业务进行处理，包括步骤1.1-1.2。
步骤1.1：启动一个时间计时器T，由高位Th和低位Tl组成；低位Tl由32bits表示用户时钟的个数；高位Th由24bits表示秒单位；对于25G ecpri接口，用户时钟通常为390.625M，pcs接口为802.3定义的xgmii 64/66B；即每隔 390625000个用户时钟周期低位时间戳进位为1s。
步骤1.2：将S1对应时刻的时间戳记为t1；将S2对应时刻的时间戳记为t2；依次类推，将Si对应时刻的时间戳记为ti。
在本实施例中，t1＝0.1s，t2＝0.7s；t3＝2.1s。
将时间戳信息带入相应的S码；格式定义如图3所示；
步骤2：在速率适配及业务映射模块中，将业务数据码和特定标识码块作为客户数据装载到flexe时隙中，可根据速率适配及频偏增删IDLE。
按照OIF flexe标准，把上述步骤1.1-1.2处理过的25G 66/64B码流，包括所有的S、D、T、O、I等装载到5个flexe时隙中，每个时隙为5G颗粒度；可根据速率或频偏增删IDLE，并按每隔1023*20个block插入1个Flexe开销、每隔16383个block插入20个对齐(Alignment，am)块；对业务的抖动影响如图6所示；
步骤3：在接收端业务提取模块中，从FlexE时隙中提取业务码块，解析出特征码块。
根据OIF FlexE标准，从对应的5个时隙中恢复出客户数据；并将S、D、T、O等有效block缓存到速率适配先入先出(First In First Out，FIFO)中，删除所有冗余IDLE块。
步骤4：根据特征码块中提取的时间戳信息，在对应时刻恢复用户数据流，包括步骤4.1-4.4。
步骤4.1：根据用户速率，产生一个带时间戳定时器T’的线速IDLE管道；时间戳计数器格式与源端一致。
步骤4.2：第一时刻读出FIFO中S特征码到达宿端的时间t1’，与S特征码携带的时间戳的差值记为dt，其中，dt＝t1’-t1。
步骤4.3：后续每读出一个带时间戳ti的S特征码，在IDLE管道的ti+dt开始插入本帧数据，所述数据从S开始，到T结束。
在一实施例中，t1’＝0.15s；dt＝0.05s；
在第0.75s时刻开始，读出S2开始的数据帧；
在第2.15s时刻开始，读出S3开始的数据帧；
依次类推；
步骤4.4：在恢复数据后，最后把S特征码分别还原成802.3标准S块。
本实施例的示意图如图7所示。
实施例二
在本实施例中，S只携带时间戳低位信息，高位由O码标识；
本实施例二与实施例一的差异在于步骤1.2与步骤4，下面对本实施例中的步骤1.2和步骤4进行说明：
步骤1.2：将阈值设为1s，将每秒内的用户66/64B码流中第一个S块携带高位进位标识，并在每个S块中添加当前低位时间戳信息Tl，生成特殊S块。
在第0-1s内，将S1进位标识置1，时间戳位记录当前计时器低位值tl1＝0.1s；将S2进位标识置0，时间戳位记录当前计时器低位值tl2＝0.5s；
在第1-2s内，未出现S块，将最后一个IDLE替换成扩展O码；进位标识置1，携带当前时间戳高位信息th3＝1s；当然，也可以是直接插入；
在第2-3s内，将S3进位标识置1，时间戳位记录当前计时器低位值tl3＝0.1s；
依次类推；
步骤4：根据特定标识码块中提取的时间戳信息，在对应时刻恢复用户数据流。
步骤4.1：根据用户速率，产生一个带时间戳定时器T’的线速IDLE管道。
步骤4.2：记录第一时刻特征码S1到达宿端的时间t0’，高位为th0’，低位为tl0’，与特征码携带的时间戳低位t0的差值记为dt；dt＝t0’-t0。
步骤4.3：后续每接收到一个带时间戳的特征码，执行如下操作：
如果接收到的是带时间戳tli，进位标识置0的S类型特征码，在IDLE管道的tli+dt开始插入本帧数据，所述数据从S开始，到T结束；
如果接收到的是带时间戳tli，进位标识置1的S类型特征码，在IDLE管道的(1+n)s+tli+dt开始插入本帧数据，所述数据从S开始，到T结束；其中n为当前S与上个S之间的O码个数。
本实施例中，S1、S3的高位置为1，其中S1的n为0；S3的n为1；dt＝0.05s；S2的高位置为0。
同样能在准确时刻还原源端业务。
本实施例的示意图可参见图8。
实施例三
源端用户侧通过25G ecpri口接入客户业务，平均流量小于10G。本实施例三与实施例一的差异在于步骤2，本实施例中的步骤2包括如下操作：
由于用户业务有效带宽较小，用25G flexe管道承载造成较大浪费，本实施例的用户业务在插入时间戳标识之后，将大部分冗余IDLE删除，只保留802.3协议的最小帧间隙要求，及满足正负100ppm频偏调整需要的IDLE；再适配到10G的flexe管道中；
在宿端，由于只需将S、D、T、O等有效block缓存到速率适配FIFO中，删除了所有冗余IDLE；在节约管道带宽的同时，仍然能够准确恢复出源端业务图案。
本实施例的示意图可参见图9。
上面的三个实施例以及技术方案，传输管道不限于FlexE、特征码块在实现中可以有多种格式。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加通用硬件平台的方式来实现，当然也可以通过硬件实现。本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如只读存储器(Read-Only Memory，ROM)/随机存取存储器(Random-Access Memory，RAM)、磁碟、光盘)中，包括多个指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本公开多个实施例所述的方法。
在本实施例中还提供了一种数据包的传输装置，该装置设置为实现上述实施例及可选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置可以以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图10是根据本公开实施例的一种数据包的传输装置的结构框图，如图10所示，该装置包括如下模块：
插入模块1002，设置为在第一设备中的待处理的预定数据包的特征码块中插入时间戳信息，得到目标数据包，其中，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位；发送模块1004，设置为将所述目标数据包发送给第二设备。
在一个可选的实施例中，上述装置还包括：处理模块，设置为在将所述目标数据包发送给所述第二设备之前，对所述预定数据包中的空闲字符进行增删处理，其中，所述预定数据包中包括两个以上数据包，所述空闲字符位于所述两个以上数据包之间。
在一个可选的实施例中，上述处理模块可以通过如下方式之一对所述预定数据包中的空闲字符进行增删处理：根据频偏对所述预定数据包中的空闲字符进行所述增删处理；在保证所述预定数据包满足预定帧间隙要求及速率适配所需的空闲字符的前提下，对所述预定数据包中的冗余空闲字符进行删除。
在一个可选的实施例中，上述装置还设置为在第一设备中的待处理的预定数据包的特征码块中插入时间戳信息之前，执行以下操作至少之一：从所述预定数据包中原有的特征码块中选取待插入所述时间戳信息的第一目标特征码块；在所述预定数据包中设置第二目标特征码块，并将所述第二目标特征码块作为待插入所述时间戳信息的特征码块。
在一个可选的实施例中，上述装置可以通过如下方式从所述预定数据包中原有的特征码块中选取待插入所述时间戳信息的第一目标特征码块：设定第一时间阈值；在确定在所述第一时间阈值内存在启动字符的情况下，选取所述第一时间阈值内的启动字符作为所述第一目标特征码块。
在一个可选的实施例中，上述装置可以通过如下方式在所述预定数据包中设置第二目标特征码块：设定第二时间阈值；在确定所述第二时间阈值内不存在启动字符的情况下，在所述第二时间阈值内设置控制字符，并将设置的所述控制字符作为所述第二目标特征码块。
在一个可选的实施例中，上述装置可以通过以下方式之一在所述第二时间阈值内设置控制字符：在所述第二时间阈值内插入所述控制字符；将所述第二时间阈值内的原有的空闲字符替换成所述控制字符。
在一个可选的实施例中，所述第一目标特征码块中至少携带时间戳低位信息和进位标志；所述第二目标特征码块中至少携带时间戳高位信息或进位标志。
在一个可选的实施例中，所述特征码块中携带以下信息至少之一：时间相位信息、进位标志、客户标志、序列号、循环冗余校验CRC值。
在一个可选的实施例中，上述发送模块1004可以通过如下方式将所述目标数据包发送给第二设备：对所述目标数据包进行速率适配；按照适配的速率将所述目标数据包转载到传输管道中，并通过所述传输管道将所述目标数据包发送给所述第二设备。
在一个可选的实施例中，上述预定数据包为物理编码子层PCS原始码流中 的数据包。
图11是根据本公开实施例的另一种数据包的传输装置的结构框图，如图11所示，该装置包括如下模块接收模块1102以及还原模块1104。
接收模块1102，设置为在第二设备上接收来自第一设备的目标数据包，其中，所述目标数据包为在预定数据包的特征码块中插入了时间戳信息后得到的数据包，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位；还原模块1104，设置为对所述目标数据包进行还原处理，得到所述预定数据包。
在一个可选的实施例中，上述接收模块1102可以通过如下方式接收来自第一设备的目标数据包：从传输管道中提取所述目标数据包。
在一个可选的实施例中，所述还原模块1104包括如下单元：识别单元，设置为在所述目标数据包中识别出特征码块；校验模块，设置为对识别出的特征码块进行校验，得到合法的特征码块；提取模块，设置为从所述合法的特征码块中提取时间戳信息；恢复模块，设置为在与所述时间戳信息对应的时刻恢复所述预定数据包。
在一个可选的实施例中，所述恢复单元，设置为通过如下方式恢复所述预定数据包：根据在下行方向上向用户发送数据的接口速率产生带时间戳的计数器的接口速率的空闲字符管道；根据接收所述合法的特征码块中的第一个特征码块的接收时间以及所述第一个特征码块中携带的时间戳信息确定所述第二设备和所述第一设备之间的差值，其中，该差值包括时间差和相位差；根据所述合法的特征码块中携带的时间戳信息和所述差值在所述空闲字符管道中恢复出所述预定数据包。
在一个可选的实施例中，插入了时间戳信息的特征码块的类型包括以下至少之一：启动字符类型，其中，所述启动字符类型的特征码块中至少携带时间戳低位信息和进位标志；控制字符类型，其中，所述控制字符类型的特征码块中至少携带时间戳高位信息或进位标志。
在一个可选的实施例中，插入了时间戳信息的特征码块中携带以下信息至少之一：时间相位信息、进位标志、客户标志、序列号、循环冗余校验CRC值。
在一个可选的实施例中，上述预定数据包为物理编码子层PCS原始码流中的数据包。
下面结合实施例对本公开中的装置进行说明：
在源端可以包括发送处理模块，如图12所示，该发送处理模块包括如下模块：
时戳插入模块1202(对应于前述的插入模块1002)，设置为在用户侧802.3定义的PCS层原始码流中，插入时间戳信息，标识原始码流在源端的时间或相位；
速率适配及业务映射模块1204(对应于前述的发送模块1004)，设置为将客户数据码块和特定标识码块作为业务数据，进行速率适配，装载到传输管道中；
在宿端可以包括接收处理模块，该接收处理模块可以包括如下模块：
业务提取模块1206(对应于前述的接收模块1102)，设置为从传输管道中提取业务码块，解析出特征码块；
数据恢复模块1208(对应于前述的还原模块1104)，设置为根据特定标识码块中提取的时间戳信息，在IDLE管道中按时间刻度还原用户数据码流；
可选地，在发送处理模块和接收处理模块之间，允许接入多个交叉模块，设置为对传输管道业务数据进行物理层交叉。
在一实施例中，上述多个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述多个模块以任意组合的形式分别位于不同的处理器中。
本公开的实施例还提供了一种存储介质，该存储介质中存储有计算机程序，其中，该计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
可选地，在本实施例中，上述存储介质可以包括：通用串行总线闪存盘(Universal Serial Bus flash disk，U盘)、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、移动硬盘、磁碟或者光盘等多种可以存储计算机程序的介质。
本公开的实施例还提供了一种电子装置，包括存储器和处理器，该存储器中存储有计算机程序，该处理器被设置为运行计算机程序以执行上述任一项的方法。
可选地，上述电子装置还可以包括传输设备以及输入输出设备，其中，该传输设备和上述处理器连接，该输入输出设备和上述处理器连接。
上述的本公开的多个模块或多个步骤可以用通用的计算装置来实现，它们 可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成一个或多个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本公开不限制于特定的硬件和软件结合。

Claims (23)

  1. 一种数据包的传输方法，包括：
    在第一设备中的待处理的预定数据包的特征码块中插入时间戳信息，得到目标数据包，其中，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位；
    将所述目标数据包发送给第二设备。
  2. 根据权利要求1所述的方法，在所述将所述目标数据包发送给所述第二设备之前，还包括：
    对所述预定数据包中的空闲字符进行增删处理，其中，所述预定数据包中包括两个以上数据包，所述空闲字符位于所述两个以上数据包之间。
  3. 根据权利要求2所述的方法，其中，所述对所述预定数据包中的空闲字符进行增删处理包括以下方式之一：
    根据频偏对所述预定数据包中的空闲字符进行所述增删处理；
    在保证所述预定数据包满足预定帧间隙要求及速率适配所需的空闲字符的前提下，对所述预定数据包中的冗余空闲字符进行删除。
  4. 根据权利要求1所述的方法，在所述在第一设备中的待处理的预定数据包的特征码块中插入时间戳信息之前，还包括以下至少之一：
    从所述预定数据包中原有的特征码块中选取待插入所述时间戳信息的第一目标特征码块；
    在所述预定数据包中设置第二目标特征码块，并将所述第二目标特征码块作为待插入所述时间戳信息的特征码块。
  5. 根据权利要求4所述的方法，其中，所述方法满足以下至少之一：
    所述从所述预定数据包中原有的特征码块中选取待插入所述时间戳信息的第一目标特征码块，包括：设定第一时间阈值；在确定在所述第一时间阈值内存在启动字符的情况下，选取所述第一时间阈值内的启动字符作为所述第一目标特征码块；
    所述在所述预定数据包中设置第二目标特征码块，包括：设定第二时间阈值；在确定所述第二时间阈值内不存在启动字符的情况下，在所述第二时间阈值内设置控制字符，并将设置的所述控制字符作为所述第二目标特征码块。
  6. 根据权利要求5所述的方法，其中，在所述第二时间阈值内设置控制字符包括以下之一：
    在所述第二时间阈值内插入所述控制字符；
    将所述第二时间阈值内的原有的空闲字符替换成所述控制字符。
  7. 根据权利要求5所述的方法，其中，
    所述第一目标特征码块中至少携带时间戳低位信息和进位标志；
    所述第二目标特征码块中至少携带时间戳高位信息或进位标志。
  8. 根据权利要求1至6中任一项所述的方法，其中，所述特征码块中携带以下信息至少之一：
    时间相位信息、进位标志、客户标志、序列号、循环冗余校验CRC值。
  9. 根据权利要求1所述的方法，其中，所述将所述目标数据包发送给第二设备包括：
    对所述目标数据包进行速率适配；
    按照适配的速率将所述目标数据包转载到传输管道中，并通过所述传输管道将所述目标数据包发送给所述第二设备。
  10. 根据权利要求1所述的方法，其中，所述预定数据包为物理编码子层PCS原始码流中的数据包。
  11. 一种数据包的传输方法，包括：
    在第二设备上接收来自第一设备的目标数据包，其中，所述目标数据包为在预定数据包的特征码块中插入了时间戳信息后得到的数据包，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位；
    对所述目标数据包进行还原处理，得到所述预定数据包。
  12. 根据权利要求11所述的方法，其中，所述在第二设备上接收来自第一设备的目标数据包，包括：
    从传输管道中提取所述目标数据包。
  13. 根据权利要求11所述的方法，其中，所述对所述目标数据包进行还原处理，得到所述预定数据包，包括：
    在所述目标数据包中识别出所述特征码块；
    对识别出的特征码块进行校验，得到合法的特征码块；
    从所述合法的特征码块中提取所述时间戳信息；
    在与所述时间戳信息对应的时刻恢复所述预定数据包。
  14. 根据权利要求13所述的方法，其中，所述在与所述时间戳信息对应的时 刻恢复所述预定数据包，包括：
    根据在下行方向上向用户发送数据的接口速率产生带时间戳的计数器的接口速率的空闲字符管道；
    根据接收所述合法的特征码块中的第一个特征码块的接收时间以及所述第一个特征码块中携带的所述时间戳信息确定所述第二设备和所述第一设备之间的差值，其中，所述差值包括时间差或相位差；
    根据所述合法的特征码块中携带的所述时间戳信息和所述差值在所述空闲字符管道中恢复出所述预定数据包。
  15. 根据权利要求11至14中任一项所述的方法，其中，所述插入了时间戳信息的特征码块的类型包括以下至少之一：
    启动字符类型，其中，所述启动字符类型的特征码块中至少携带时间戳低位信息和进位标志；
    控制字符类型，其中，所述控制字符类型的特征码块中至少携带时间戳高位信息或进位标志。
  16. 根据权利要求11至14中任一项所述的方法，其中，所述插入了时间戳信息的特征码块中携带以下信息至少之一：
    时间相位信息、进位标志、客户标志、序列号、循环冗余校验CRC值。
  17. 根据权利要求11所述的方法，其中，所述预定数据包为物理编码子层PCS原始码流中的数据包。
  18. 一种数据包的传输装置，包括：
    插入模块，设置为在第一设备中的待处理的预定数据包的特征码块中插入时间戳信息，得到目标数据包，其中，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位；
    发送模块，设置为将所述目标数据包发送给第二设备。
  19. 根据权利要求18所述的装置，还包括：
    处理模块，设置为在将所述目标数据包发送给所述第二设备之前，对所述预定数据包中的空闲字符进行增删处理，其中，所述预定数据包中包括两个以上数据包，所述空闲字符位于所述两个以上数据包之间。
  20. 一种数据包的传输装置，包括：
    接收模块，设置为在第二设备上接收来自第一设备的目标数据包，其中，所述目标数据包为在预定数据包的特征码块中插入了时间戳信息后得到的数据 包，所述特征码块为所述预定数据包中包括特征信息的码块，所述时间戳信息用于标识所述特征码块的发送时间或相位；
    还原模块，设置为对所述目标数据包进行还原处理，得到所述预定数据包。
  21. 根据权利要求20所述的装置，其中，所述还原模块包括：
    识别单元，设置为在所述目标数据包中识别出所述特征码块；
    校验单元，设置为对识别出的特征码块进行校验，得到合法的特征码块；
    提取单元，设置为从所述合法的特征码块中提取所述时间戳信息；
    恢复单元，设置为在与所述时间戳信息对应的时刻恢复所述预定数据包。
  22. 一种存储介质，所述存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行所述权利要求1至10任一项中所述的方法，或者执行所述权利要求11至17任一项中所述的方法。
  23. 一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行所述权利要求1至10任一项中所述的方法，或者执行所述权利要求11至17任一项中所述的方法。
PCT/CN2019/101875 2018-08-22 2019-08-22 数据包的传输方法、装置、存储介质及电子装置 WO2020038424A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR112021003214-2A BR112021003214A2 (pt) 2018-08-22 2019-08-22 método de transmissão de pacote de dados e aparelho de transmissão de pacote de dados

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810961321.6 2018-08-22
CN201810961321.6A CN110858790B (zh) 2018-08-22 2018-08-22 一种数据包的传输方法、装置、存储介质及电子装置

Publications (1)

Publication Number Publication Date
WO2020038424A1 true WO2020038424A1 (zh) 2020-02-27

Family

ID=69592851

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/101875 WO2020038424A1 (zh) 2018-08-22 2019-08-22 数据包的传输方法、装置、存储介质及电子装置

Country Status (3)

Country Link
CN (1) CN110858790B (zh)
BR (1) BR112021003214A2 (zh)
WO (1) WO2020038424A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111791232B (zh) * 2020-06-03 2021-02-05 中南民族大学 一种基于时间硬同步的机器人底盘控制系统及方法
CN115021818B (zh) * 2022-04-22 2024-05-07 三维通信股份有限公司 基于分布式基站的以太网组网系统及组网方法
CN114567927B (zh) * 2022-04-28 2022-08-05 广州世炬网络科技有限公司 基于cpri的数据传输方法、装置、设备以及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103796079A (zh) * 2013-12-26 2014-05-14 国家广播电影电视总局广播科学研究院 地面数字电视传输分配网信道损伤模拟方法
CN108075903A (zh) * 2016-11-15 2018-05-25 华为技术有限公司 用于建立灵活以太网群组的方法和设备
CN108092924A (zh) * 2017-12-25 2018-05-29 烽火通信科技股份有限公司 基于FlexE业务的信元交换方法及系统
CN108347317A (zh) * 2017-01-22 2018-07-31 华为技术有限公司 一种业务的传输方法、网络设备及网络系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100525172C (zh) * 2005-07-27 2009-08-05 杭州华三通信技术有限公司 多路物理层接口复用传输装置
CN103229469B (zh) * 2011-07-28 2015-08-26 华为技术有限公司 一种以太网设备处理方法和装置
CN106301678B (zh) * 2015-06-08 2020-02-14 华为技术有限公司 一种数据处理的方法、通信设备及通信系统
US10097480B2 (en) * 2015-09-29 2018-10-09 Ciena Corporation Time transfer systems and methods over flexible ethernet
CN110719143A (zh) * 2015-07-30 2020-01-21 华为技术有限公司 用于数据传输的方法、发送机和接收机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103796079A (zh) * 2013-12-26 2014-05-14 国家广播电影电视总局广播科学研究院 地面数字电视传输分配网信道损伤模拟方法
CN108075903A (zh) * 2016-11-15 2018-05-25 华为技术有限公司 用于建立灵活以太网群组的方法和设备
CN108347317A (zh) * 2017-01-22 2018-07-31 华为技术有限公司 一种业务的传输方法、网络设备及网络系统
CN108092924A (zh) * 2017-12-25 2018-05-29 烽火通信科技股份有限公司 基于FlexE业务的信元交换方法及系统

Also Published As

Publication number Publication date
BR112021003214A2 (pt) 2021-05-11
CN110858790A (zh) 2020-03-03
CN110858790B (zh) 2022-08-02

Similar Documents

Publication Publication Date Title
US11824636B2 (en) Method and apparatus for sending and receiving clock synchronization packet
WO2020038424A1 (zh) 数据包的传输方法、装置、存储介质及电子装置
CN101171806B (zh) 在移动通信系统中使用预定义长度指示符传送/接收分组数据的方法和设备
US20130051407A1 (en) Inter-Packet Gap Network Clock Synchronization
WO2019084732A1 (zh) 时钟同步的方法和装置
US10292154B2 (en) Communication establishment method, mobile station and transfer device based on transfer mode
CN107528667B (zh) 在近端设备和远端设备之间进行帧数据传输的方法和装置
WO2020063593A1 (zh) 一种时延对称性测量方法、装置和系统
WO2017035724A1 (zh) 接收cpri数据流和接收以太网帧的方法、装置及系统
CN101548510A (zh) 用于发送传输流包的方法和设备
WO2021238724A1 (zh) 一种时间戳信息传输方法、装置、设备和存储介质
WO2021063303A1 (zh) 获取数据流的时间戳的方法、装置、存储介质和电子装置
CN102348203B (zh) 加密同步实现方法
WO2017118019A1 (zh) 一种e1结构化时隙压缩模式分组传送的方法及装置
WO2023098430A1 (zh) 一种数据包的处理方法、通信装置及通信系统
US10574424B2 (en) Transmission bandwidth improvements for DVB-S2X channel bonding
WO2021082468A1 (zh) 一种通信方法、设备及存储介质
US8665912B2 (en) Method and system for transmitting a clock rate on an Ethernet network link and applications thereof
CN106911545B (zh) 一种通过以太网传输st_bus数据的方法及装置
CN112312476A (zh) 一种业务传输方法、装置及计算机可读存储介质
WO2022174672A1 (zh) 时延测量方法、装置、设备和计算机可读存储介质
WO2023065757A1 (zh) 帧转换方法、节点、存储介质和电子装置
WO2023165222A1 (zh) 待映射内容的映射方法、装置、存储介质及电子装置
CN109150350A (zh) 设备延时补偿方法、系统及存储介质
CN102217241B (zh) 一种数据处理的方法及接入节点

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: 19852655

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2101000955

Country of ref document: TH

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112021003214

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112021003214

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20210222

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 25.06.2021)

122 Ep: pct application non-entry in european phase

Ref document number: 19852655

Country of ref document: EP

Kind code of ref document: A1