WO2018103740A1 - 复帧发送、接收方法、装置、设备、系统和存储介质 - Google Patents

复帧发送、接收方法、装置、设备、系统和存储介质 Download PDF

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Publication number
WO2018103740A1
WO2018103740A1 PCT/CN2017/115285 CN2017115285W WO2018103740A1 WO 2018103740 A1 WO2018103740 A1 WO 2018103740A1 CN 2017115285 W CN2017115285 W CN 2017115285W WO 2018103740 A1 WO2018103740 A1 WO 2018103740A1
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Prior art keywords
frame
identifier
multiframe
frames
extracted
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PCT/CN2017/115285
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English (en)
French (fr)
Inventor
刘峰
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中兴通讯股份有限公司
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Priority to US16/466,706 priority Critical patent/US11569923B2/en
Priority to EP17878351.0A priority patent/EP3553977A4/en
Publication of WO2018103740A1 publication Critical patent/WO2018103740A1/zh
Priority to US18/086,398 priority patent/US20230118809A1/en

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    • 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]
    • H04J3/1664—Optical Transport Network [OTN] carrying hybrid payloads, e.g. different types of packets or carrying frames and packets in the paylaod
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H04J3/0605—Special codes used as synchronising signal
    • H04J3/0608—Detectors therefor, e.g. correlators, state machines
    • 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
    • H04J3/1623—Plesiochronous digital hierarchy [PDH]
    • H04J3/1647—Subrate or multislot multiplexing
    • 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
    • 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 multiframe transmission and reception method, apparatus, communication device, and communication network system.
  • the rapid increase of user network information traffic has promoted the rapid development of communication network information transmission bandwidth.
  • the interface bandwidth speed of communication equipment has been increased from 10M (unit: bit/second, later) to 100M, and 1G and 10G have been improved.
  • 100G bandwidth speed a large number of commercial 100G optical modules have been launched on the market.
  • 400G optical modules have been developed, but the 400G optical modules are expensive, exceeding the price of four 100G optical modules, resulting in the lack of commercial economic value of 400G optical modules.
  • the International Standards Organization defines the Flexible Ethernet (FlexE) protocol.
  • the FlexE protocol bundles multiple 100G optical modules to form a high-speed transmission channel. As shown in Figure 1, four 100G optical modules are bundled together by the FLEXE protocol to form a 400G transmission channel, equivalent to one 400G light.
  • the transmission speed of the module solves the transmission requirements of the 400G service without increasing the cost.
  • the physical layer defined by the FlexE protocol is 100G
  • 20 slots are defined on the physical layer of 100G.
  • the FLEXE multiframe structure is defined.
  • the multiframe structure consists of 32 frames. In the first frame of the multiframe structure, the configuration information of each time slot can be transmitted, and the corresponding position of the last 12 frames is temporarily retained. For physical layers such as 25G, 200G, and 400G, the original multiframe structure cannot be used. Handing configuration information for each time slot.
  • the multiframe structure has a single limitation, and the multiframe composed of 32 frames cannot be applied to the physical layer of different bandwidths, thereby causing a problem of poor bandwidth compatibility between the multiframe and the different bandwidth interfaces.
  • a multiframe transmission and reception method a device, a communication device, a communication network system, and a computer storage medium are provided to solve at least the problem that the multiframe structure of the FlexE protocol in the related art has poor compatibility with bandwidth of different interfaces. .
  • a method for transmitting a multi-frame including: determining, according to a number of time slots of a physical layer, a multi-frame identifier for identifying a multi-frame number, wherein the multi-frame number is a complex The number of frames of the frame; the multi-frame is sent to the receiving end, where the multi-frame carries the multi-frame identifier.
  • a predetermined number of “0” preset number “1” is provided, and a multiframe receiving method is provided, including: extracting, on the received frame, identifying the number of multiframes The multi-frame identifier, wherein the number of multi-frames is the number of frames constituting one multi-frame; and the multi-frame data is received according to the extracted multi-frame identifier.
  • a multi-frame transmitting apparatus including: a first determining module, configured to determine a multi-frame identifier for identifying a multi-frame number according to a number of time slots of a physical layer, where The number of the multiframes is the number of frames constituting a multiframe.
  • the sending module is configured to send the multiframe to the receiving end, where the multiframe carries the multiframe identifier.
  • a communication device including: a processor and a transmission device, wherein the processor is configured to determine a complex for identifying a multi-frame number according to a number of time slots of a physical layer. a frame identifier, where the number of multiframes is a number of frames constituting a multiframe; the transmitting device is configured to send a multiframe to the receiving end, where the multiframe carries the complex Frame ID.
  • a communication network system includes: a first communication device and a second communication device, wherein the first communication device is configured to determine the number of time slots according to the physical layer. a multi-frame identifier for identifying a multi-frame number, wherein the multi-frame number is a number of frames constituting a multi-frame; the determined multi-frame identifier is sent to the second communication device, where The multiframe carries the multiframe identifier; the second communications device is configured to extract the multiframe identifier on the received frame; and perform the multiframe data receiving according to the extracted multiframe identifier .
  • a computer storage medium is also provided.
  • the storage medium is configured to store computer executable code that, when executed, is capable of implementing the methods provided by one or more of the foregoing.
  • a multiframe structure for example, a frame included in a multiframe structure (where a frame may be a basic frame, which is a basic unit constituting a multiframe)
  • the number of slots is determined, so it is not limited to the multiframe structure consisting of only 32 frames in the prior art, and the flexible setting of the frame is realized.
  • the number of time slots of the physical layer is corresponding to the bandwidth that the interface can provide, and is compatible with the bandwidth that the physical layer of different interfaces can provide.
  • the multi-frame structure can be flexibly set.
  • the multi-frame identifier indicating the number of frames of the current multi-frame is determined according to the determined number of multi-frames included in the multi-frame, and The multi-frame identifier is carried in the multi-frame and sent to the receiving end.
  • the receiving end receives the multi-frame
  • the receiving end receives the multi-frame identifier of the multi-frame.
  • the receiving end can know the boundary between the multi-frames, for example, The number of frames included in the current multiframe, the start frame and the end frame of the current multiframe are determined, thereby extracting information carried in the multiframe, and realizing the information transmission and reception of the flexible multiframe before the transmitting end and the receiving end.
  • the technical solution provided by the embodiment of the present invention can flexibly set the number of frames included in a multi-frame, and can be flexibly set according to the bandwidth of different interfaces. Therefore, the complex of the FlexE protocol in the related art can be solved.
  • the frame structure has the problem of poor bandwidth compatibility for different interfaces, and the effect of improving the bandwidth compatibility of the multiframe structure of the FlexE protocol on different interfaces is achieved.
  • FIG. 1 is a schematic diagram of a FLEXE protocol application in the related art
  • FIG. 2 is a block diagram showing the hardware structure of a communication device of a multiframe transmission method according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for transmitting a multiframe according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a multiframe receiving method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a FlexE protocol overhead block and a data block arrangement position according to an alternative embodiment of the present invention
  • FIG. 6 is a schematic diagram of allocation of a FlexE protocol service over multiple physical channels in an alternative embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a FlexE protocol frame according to an alternative embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a FlexE protocol multiframe according to an alternative embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a physical layer being modified from 100G to 25G when the FlexE protocol is expanded in an alternative embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a physical layer being modified from 100G to 200G when the FlexE protocol is expanded in an alternative embodiment of the present invention
  • FIG. 11 is a schematic diagram of a physical layer being modified from 100G to 400G when the FlexE protocol is expanded in an alternative embodiment of the present invention
  • FIG. 12 is a schematic diagram of a multiframe structure when the physical layer is 25G when the FlexE protocol is expanded according to an alternative embodiment of the present invention.
  • FIG. 13 is a schematic diagram of a multiframe structure when the physical layer is 200G when the FlexE protocol is expanded according to an alternative embodiment of the present invention
  • FIG. 14 is a schematic diagram of a multiframe structure when a physical layer is 400 G when the FlexE protocol is expanded according to an alternative embodiment of the present invention
  • FIG. 15 is a structural block diagram 1 of a multiframe transmitting apparatus according to an embodiment of the present invention.
  • 16 is a structural block diagram 2 of a multiframe transmitting apparatus according to an embodiment of the present invention.
  • FIG. 17 is a structural block diagram 1 of a multiframe receiving apparatus according to an embodiment of the present invention.
  • FIG. 18 is a structural block diagram 2 of a multiframe receiving apparatus according to an embodiment of the present invention.
  • 19 is a structural block diagram 1 of a communication device according to an embodiment of the present invention.
  • 20 is a structural block diagram 2 of a communication device according to an embodiment of the present invention.
  • 21 is a block diagram showing the structure of a communication network system according to an embodiment of the present invention.
  • FIG. 2 is a hardware block diagram of a communication device of a multiframe transmission method according to an embodiment of the present invention.
  • communication device 20 may include one or more (only one of which is shown) processor 22 (processor 22 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA)
  • processor 22 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA)
  • a memory 24 for storing data
  • a transmission device 26 for communication functions.
  • communication device 20 may also include more or fewer components than shown in FIG. 2, or have a different configuration than that shown in FIG. 2.
  • the memory 24 can be configured as a software program and a module for storing application software, such as a program instruction/module corresponding to the multiframe transmission method in the embodiment of the present invention, and the processor 22 executes by executing a software program and a module stored in the memory 24.
  • application software such as a program instruction/module corresponding to the multiframe transmission method in the embodiment of the present invention
  • the processor 22 executes by executing a software program and a module stored in the memory 24.
  • Various functional applications and data processing, that is, the above methods are implemented.
  • Memory 24 may include high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state storage. Device.
  • memory 24 may further include memory remotely located relative to processor 22, which may be connected to communication device 20 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 26 is configured to receive or transmit data via a network.
  • the network specific examples described above may include a wireless network provided by a communication provider of the communication device 20.
  • the transmission device 26 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet.
  • the transmission device 26 can be a Radio Frequency (RF) module for communicating with the Internet wirelessly.
  • NIC Network Interface Controller
  • RF Radio Frequency
  • FIG. 3 is a flowchart of a method for transmitting a multi-frame according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps:
  • Step S302 determining, according to the number of time slots of the physical layer, a multi-frame identifier for identifying the number of multi-frames, where the number of multi-frames is the number of frames constituting one multi-frame;
  • Step S304 the multi-frame is sent to the receiving end, where the multi-frame carries the multi-frame identifier.
  • the number of the multiple frames may be the nth power of 2, where n is the smallest positive integer such that the number of multiframes is greater than or equal to the number of slots.
  • the number of multiframes may also be other positive integers greater than or equal to the number of slots, and the number of multiframes is limited to the above form, which may make the subframe structure of the multiframe symmetry and design convenient.
  • the multi-frame identifier may be carried in the multi-frame, where the identifier values of the multi-frame identifiers are sequentially carried in preset positions of the cost blocks of the frames constituting the multi-frame, where The number of the identification values is the same as the number of the multiple frames.
  • the multi-frame identifier may be a string of "0" and "1".
  • each identifier value of the multi-frame identifier may be a consecutive preset number of "0"s and consecutive preset numbers. "1", wherein the number of multiframes is even, and the preset number is half of the number of multiframes. That is, the determined multiframe identity is identified by consecutive m zeros and consecutive A string of m 1s, the value of m is half of the number of multiframes.
  • the multiframe identifier corresponds to two or more adjacent characters in the string, and is carried by different frames in the multiframe.
  • the multiframe of a multiframe is identified by the string "00001111”
  • the multiframe identifier is carried by 8 frames in the multiframe, and one frame carries the character string by one character, for example, the first 4 consecutive in the multiframe.
  • the frame carries the character “0”.
  • the last four consecutive frames in the multiframe carry the character “1”.
  • the preset position of different frames is carried, and the separate transmission of the same character “0” or “1” is realized.
  • the receiving end after receiving the multiframe, extracts the characters constituting the multiframe identifier from the preset position, and then combines the extracted characters to form the multiframe identifier. Since the multi-frame identifier has a set consisting of a preset number of "0"s or a preset number "1", after receiving the preset number "0" and a "1", the receiving end can According to the number of "0" in the multi-frame identifier, the number of frames included in the current multi-frame is determined in advance, thereby determining the multi-frame boundary, and the determination of the multi-frame structure and the boundary is accelerated.
  • the number of frames included in one multi-frame may be accurately determined.
  • the foregoing preset location for sending the identifier value may be an Overhead Multi-frame Indicator (OMF) field of the overhead block.
  • OMF Overhead Multi-frame Indicator
  • the number of time slots may also be determined according to an interface bandwidth speed of the physical layer.
  • the relationship between the interface bandwidth speed and the number of time slots may be that the number of time slots is equal to the interface bandwidth speed divided by 5G, and the interface here may be in various forms, such as an optical interface.
  • the multi-frame identifier may be determined in multiple manners. For example, the number of multi-frames may be determined according to the number of slots of the physical layer. Then, according to the number of multi-frames, the number of the multi-frames is determined. Multiframe identifier.
  • the correspondence between the number of timeslots and the multiframe identifier may be preset, and the multiframe identifier corresponding to the number of slots is directly determined according to the correspondence.
  • the corresponding multi-frame identifier may be directly determined according to the bandwidth speed of the physical layer and the correspondence between the bandwidth speed and the multi-frame identifier, according to the bandwidth speed of the physical layer.
  • the hardware structure of the communication device of the data receiving method of the embodiment of the present invention is similar to that of the foregoing communication device 20, and is not described herein.
  • FIG. 4 is a flowchart of a multi-frame receiving method according to an embodiment of the present invention. As shown in FIG. 4, the process includes the following steps:
  • Step S402 on the received frame, extracting a multi-frame identifier for identifying the number of multi-frames, where the number of multi-frames is the number of frames constituting one multi-frame;
  • Step S404 performing multiframe data reception according to the extracted multiframe identifier.
  • the multi-frame identifier for identifying the number of multi-frames (the number of frames constituting one multi-frame) is extracted, and the multi-frame data is received according to the extracted multi-frame identifier, and the solution is solved.
  • the multiframe structure of the FlexE protocol in the related art has a problem of poor bandwidth compatibility for different interfaces, and improves the bandwidth compatibility of the multiframe structure of the FlexE protocol for different interfaces.
  • the step S402 is implemented in the following manner: in the received preset position of the overhead block of each frame, the identifier value of the multi-frame identifier for indicating the number of multi-frames is sequentially extracted, where the number of the identifier values is The number of multiframes is the same.
  • the multi-frame identifier may be extracted at other positions of the received frame, as long as the receiving end and the transmitting end can determine the preset position according to mutual agreement or protocol.
  • the preset location may be an OMF field of the overhead block.
  • step S404 may perform multi-frame data reception by: determining, according to the extracted identifier value of the multi-frame identifier, a multi-frame boundary; and performing multi-frame data reception according to the determined multi-frame boundary.
  • the multiframe boundary By determining the multiframe boundary, the start and end positions of each multiframe can be determined, and a complete multiframe is determined for multiframe data reception.
  • step S402 it is further determined whether the received multi-frame identifier is correct according to the number of the extracted identifier values and the receiving sequence; and if the judgment result is correct, according to the extracted multi-frame identifier, Multiframe data reception is performed.
  • the foregoing multiframe sending method and multiframe receiving method may be applied to a system based on a FlexE protocol networking.
  • a multi-frame indication method in the FlexE protocol including the sending end.
  • a multiframe transmission method and a multiframe reception method at a receiving end the method can be applied to a system including a transmitting end and a receiving end. The method will be described below.
  • 400G optical modules In order to solve the transmission requirements of 400G services, 400G services can be delivered on 100G optical modules without increasing the cost.
  • the International Standards Organization defines the FLEXE protocol.
  • the FLEXE protocol bundles multiple 100G optical modules to form a transmission channel for large service speeds. As shown in Figure 1, four 100G optical modules are bundled together by the FlexE protocol to form a 400G transmission channel, equivalent to one.
  • the service delivery speed of the 400G optical module not only satisfies the transmission requirements of the 400G service, but also solves the economic value problem of the service delivery.
  • the FLEXE protocol is defined in terms of physical layer 100G rate.
  • the 100G data packet is 64/66 encoded before the data packet is transmitted, and the 64-bit data block is expanded into a 66-bit information block, and the added 2 bits are located in front of the 66-bit block.
  • the start flag of the 66-bit block it is then sent out from the optical port in a 66-bit block.
  • the optical port discriminates the 66-bit block from the received data stream, and then recovers the original 64-bit data from the 66-bit block, reassembling the data message.
  • the FLEXE protocol is in the 64-bit to 66-block conversion layer.
  • the 66-bit data block is sorted and planned before the 66-bit data block is transmitted. As shown in Figure 5, for the 100G service, every 20 66-bit data blocks are divided into one. A data block group, a total of 20 data blocks in each group, representing 20 time slots, each time slot representing a service speed of 5G bandwidth.
  • a FLEXE overhead block is inserted, such as the black block shown in FIG. After inserting the overhead block, continue to send the data block, after sending the second 1023*20 data blocks, insert the overhead block, and so on, so that during the process of sending the data block, the overhead block is periodically inserted.
  • the interval between two adjacent overhead blocks is 1023*20 data blocks.
  • each physical layer When four physical layers of 100G are bundled into a logical service bandwidth of 400G, as shown in FIG. 6, each physical layer still forms a data block group according to 20 data blocks, and inserts one overhead byte every 1023 data block groups. .
  • the FlexE shim layer four 20 data blocks are assembled into a data block group consisting of 80 data blocks, and there are 80 time slots in the block group. The customer service is delivered in these 80 time slots, each time slot bandwidth is 5G, a total of 400G service delivery bandwidth.
  • the FlexE overhead block is a 66-bit-long overhead block.
  • an overhead block is inserted every 1023*20 blocks.
  • the overhead block plays a positioning function in the entire service flow.
  • the location of the first data block group in the service and the location of the subsequent data block group can be known.
  • the content of the overhead block is as shown in FIG. 7, and eight consecutive overhead blocks (ie, overhead blocks of eight consecutive data block groups) constitute one overhead frame.
  • An overhead block consists of a 2-bit block flag and 64-bit block contents.
  • the block flag is located in the first 2 columns, the latter 64 columns are the block contents, the block flag of the first overhead block is 10, and the block flags of the following 7 overhead blocks are "01" or "SS" (SS indicates that the content is uncertain).
  • the contents of the first overhead block are: "0x4B” (8 bits, 4B in hexadecimal), C bits (1 bit, indicating adjustment control), OMF bits (1 bit, indicating overhead multiframe indication), RPF bits (1 bit, indicating remote defect indication), RES bit (1 bit, reserved bit), FlexE group number (20 bits, indicating the number of the bundle group), 0x5 (4 bits, 5 in hexadecimal), 000000 ( 28 digits, both are 0).
  • 0x4B and 0x5 are the flag indications of the first overhead block.
  • the corresponding position in an overhead block is found to be 0x4B and 0x5
  • the consecutive 7 overhead blocks form an overhead frame.
  • the reserved portion is reserved and has not been defined, as shown in the black block in FIG.
  • the other byte contents in the overhead frame are not related to the method of the alternative embodiment, and are not specifically described.
  • the first overhead block consists of 4B (hexadecimal, identified as “0" x4B) and 05 (hexadecimal, identified as “0” x 5) Two field identifiers.
  • the OMF field is a multiframe indication signal, as shown in FIG.
  • OMF is a single-bit value, which is "0" in 16 consecutive frames, then "1" in 16 consecutive frames, then "0” in consecutive 16 frames, and then "1" in consecutive 16 frames, every 32 frames. Repeat once, so that the multiframe is composed of 32 frames.
  • the Client calendar field indicates the configuration information of each time slot.
  • the two sets of configuration values work in the working mode and standby mode respectively for dynamic and smooth operation.
  • Switch configuration information At one point in time, only one set of configuration values is in active mode and the other is in standby mode. If you need to modify the configuration value, modify the configuration value of the standby mode and notify the peer that the configuration value of the port has changed.
  • the peer is prepared according to the new configuration value. After the preparation is complete, it is sent back to the initiator. After the configuration is complete, the switchover process of the configuration table is started.
  • the work mode configuration table is changed to the standby mode, and the original standby mode configuration table is changed to the work mode to implement dynamic adjustment of the configuration information.
  • the OMF value indicates the multiframe structure. A multiframe consists of 32 frames. In this case, only one slot configuration table is transmitted in one frame. The configuration information of all slots can be transmitted in 20 frames, and the configuration information position in the remaining 12 frames is Keep the field as shown in Figure 8.
  • each time slot remains 5G, and the physical layer only needs 5 time slots, as shown in FIG.
  • each time slot remains 5G, and the physical layer only needs 40 time slots, as shown in FIG.
  • each time slot remains 5G, and the physical layer only needs 80 time slots, as shown in FIG. Since the number of time slots of each physical layer changes, each time slot needs configuration information, and the transmission mode of each time slot configuration information needs to be defined.
  • the original FLEXE protocol multiframe definition format is only suitable for the physical layer of 100G, and is not suitable for the physical layer of other rates. This alternative embodiment provides a multi-frame indication mode for different physical bandwidths and different number of time slots.
  • Step 1 At the transmitting end, determining a multi-frame flag pattern (acting the same as the foregoing multi-frame identifier), the multi-frame flag pattern is composed of consecutive “0” and continuous “1”, and the number of consecutive “0” and continuous “1” It is related to the number of time slots of the physical layer.
  • the above step 1 may include the following steps:
  • Step 1.1 Determine the number of physical layer slots in the overhead frame structure of the FlexE protocol.
  • the number of time slots of the physical layer can be determined according to the bandwidth of the physical layer.
  • the bandwidth of each time slot can be 5G, and the bandwidth of the physical layer is divided by 5G to know the number of time slots of the physical layer.
  • the number of slots is 2; for the 25G physical layer, the number of slots is 5; for the physical bandwidth of 40G, the number of slots is 8; for the physical bandwidth of 50G, the number of slots is 10; for the physical bandwidth of 200G, the slots The number is 40; for a physical bandwidth of 400G, the number of time slots is 80.
  • the multiframe value is determined according to the number of slots of the physical layer, that is, how many frames form a multiframe.
  • step 1.2 may include the following steps:
  • Step 1.2.1 Determine, according to the number of time slots of the physical layer, the number m of multiframes larger than the number of time slots, the number m of multiframes is equal to the nth power of 2, and n is a constraint condition (the number of multiframes is greater than the number of slots) The smallest positive integer in the middle.
  • Step 1.2.1 is to find the number m of multiframes larger than the number of slots, the number of multiframes m is equal to the nth power of 2, and n is the smallest positive integer that satisfies the constraint requirement (the number of multiframes is greater than the number of slots) .
  • n the smallest positive integer that satisfies the constraint requirement (the number of multiframes is greater than the number of slots) .
  • n can be selected from 1, 2, 3, 4, 5, ... (positive integers greater than 0).
  • n is "1" or 2
  • the number of multiframes is 2 and 4, and the number of multiframes is not greater than the number of slots; when n is 3, 4, 5, ..., the number of multiframes is 8, 16, 32... , the number of multiframes is greater than the number of slots.
  • 3 is the smallest positive integer, so n selects 3.
  • the multiframe value is "1" 28, which is greater than the number of slots 80. That is to say, when the number of time slots is 5, then n is 3, the number of multiframes is equal to 2 to the 3rd power, the number of multiframes is 8, which is greater than the number of slots 5; when the number of slots is 40, n is 6 The number of multiframes is equal to 2 to the 6th power, the number of multiframes is 64, which is greater than the number of slots 40. When the number of slots is 80, n is 7, and m is equal to 2 to the 7th power, and the number of slots is "1. "28, greater than the number of time slots 80.
  • step 1.2.2 it is determined that the number of consecutive "0"s forming the multi-frame identification pattern is equal to half of the multi-frame value, and the number of consecutive "1"s is also equal to half of the multi-frame value, consecutively "0" and continuous "
  • the 1" string constitutes a multiframe identification pattern.
  • the number of "0" and “1" constituting the multiframe pattern may also be other values as long as the sum of the number of consecutive "0”s and the number of consecutive "1”s is equal to the determined multiframe value. Just fine. For the sake of symmetry and design convenience, the number of consecutive "0”s is used in the alternative embodiment. The number of consecutive "1"s is equal.
  • Step 1.3 Determine, according to the number of multiframes, the number of consecutive OMF fields in the overhead to be "0" and the number of consecutive "1"s, the number of consecutive "0”s is equal to half of the number of multiframes, and the number of consecutive "1”s is also Equal to half of the number of multiframes, information bits consecutively "0" and consecutively "1" constitute a multiframe mark pattern.
  • the number of consecutive transmissions of "0" by the OMF is half of the value of the multiframe, and it is determined that the number of consecutive transmissions of "1" by the OMF is also half of the value of the multiframe, consecutively "0" and continuous “1"
  • the string constitutes a multi-frame structure logo pattern.
  • Step 2 At the transmitting end, the OMF field is cyclically transmitted according to the determined multiframe flag pattern.
  • the OMF is sent according to the multi-frame structure flag pattern, and the first transmission is consecutively "0", and then the continuous is "1" portion, and the multi-frame pattern is repeated after the end of one multi-frame (see Figures 12, 13, and 14). Shown).
  • Step 3 At the receiving end, extract the content of the OMF field, and determine whether the received multi-frame structure pattern is correct according to the determined multi-frame structure pattern, and give a multi-frame boundary.
  • the FlexE protocol multiframe indication method provided in this alternative embodiment can be applied to the FLEXE protocol multiframe indication device, and the device includes the following three parts: a multiframe pattern information generation module, a multiframe pattern information receiving module, and a multiframe pattern judgment. Module.
  • the multiframe pattern product module determines the multiframe information pattern according to the speed of the physical layer.
  • the multiframe flag pattern is composed of a continuous "0" and a continuous "1", and the number of consecutive "0”s and consecutive “1”s is related to the number of slots of the physical layer.
  • the number of consecutive "0”s is equal to half of the number of multiframes
  • the number of consecutive "1”s is also equal to half of the number of multiframes
  • the information bits consecutively "0" and consecutively "1” constitute a multiframe mark pattern.
  • the number of multiframes satisfies this condition: (1) the number of multiframes is larger than the number of slots; (2) the number of multiframes m is equal to the nth power of 2, and n is the constraint condition (the number of multiframes is greater than the number of slots) The smallest positive integer.
  • the number of slots is 5
  • the number of multiframes is 8, and a multiframe consists of 8 frames.
  • the multiframe pattern is 00001111, and the number of consecutive "0"s is 4, which is continuous.
  • the number of 1" is 4, a total of 8 frames (that is, every 8 frames) is cycled once;
  • the number of slots is "1" 0, the number of multiframes is 16, and the number of multiframes is 16 Frame composition
  • the case is 0000000011111111, the number of consecutive "0" is 8, the number of consecutive "1” is 8, a total of 16 frames (that is, every 16 frames) is cycled once; for the physical layer of 200G rate, the number of time slots For 40, the number of multiframes is 64, and a multiframe consists of 64 frames.
  • the multiframe pattern is:
  • the number of multiframes is 128, one multiframe consists of 128 frames, and one multiframe consists of 128 frames.
  • the multiframe pattern is:
  • the multi-frame pattern information receiving module extracts the content of the OMF field in the received FLEXE frame, and saves the extracted content; the multi-frame pattern determining module detects whether the received content is correct according to the multi-frame identification pattern format of the transmitting end. In the case where the multiframe pattern is correct, the multiframe boundary is given, and the first frame position in the multiframe is given.
  • the transmitting end determines the number of multiple frames according to the number of time slots of the physical layer, and determines a multi-frame flag pattern according to the determined number of multi-frame frames, and determines the determined multi-frame identification pattern in the overhead frame.
  • the preset position for example, the OMF field
  • the receiving end extracts the content of the OMF field, and according to the determined multi-frame structure pattern, the multi-frame boundary is given, and different physical bandwidths and different time slots are given.
  • the multi-frame indication mode improves the compatibility of the multi-frame indication mode in the FlexE protocol.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a plurality of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the embodiments described in the various embodiments of the present invention. method.
  • a multi-frame transmitting apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and optional implementation manners, and details are not described herein again.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 15 is a block diagram showing the structure of a multiframe transmitting apparatus according to an embodiment of the present invention. As shown in FIG. 15, the apparatus includes:
  • the first determining module 152 is configured to determine, according to the number of timeslots of the physical layer, a multi-frame identifier for identifying the number of multi-frames, where the number of multi-frames is the number of frames constituting one multi-frame;
  • the sending module 154 is configured to send the multi-frame to the receiving end, where the multi-frame carries the multi-frame identifier.
  • the number of multiframes may be n to the power of 2, where n is the smallest positive integer such that the number of multiframes is greater than or equal to the number of slots.
  • the sending module 154 is further configured to carry, in sequence, each identifier value of the multi-frame identifier in a preset position of the cost block of each frame that constitutes the multi-frame, where the number of the identifier value and the multi-frame The number is the same.
  • FIG. 16 is a block diagram showing the structure of a multiframe transmitting apparatus according to an embodiment of the present invention. As shown in FIG. 16, the apparatus includes: in addition to all the modules shown in FIG. 15, the apparatus includes:
  • the second determining module 162 is configured to determine the number of time slots according to the interface bandwidth speed of the physical layer.
  • FIG. 17 is a block diagram of a structure of a multi-frame receiving apparatus according to an embodiment of the present invention. As shown in FIG. 17, the apparatus includes:
  • the extracting module 172 is configured to: on the received frame, extract a multi-frame identifier for identifying the number of multi-frames, where the number of multi-frames is the number of frames constituting one multi-frame;
  • the receiving module 174 is connected to the extraction module 172, and configured to perform multiframe data reception according to the extracted multiframe identifier.
  • the extraction module 172 is further configured to receive the pre-interval block of each frame.
  • the identifier value of the multi-frame identifier is extracted in sequence, wherein the number of the identifier values is the same as the number of multi-frames.
  • the receiving module 174 is further configured to determine a multiframe boundary according to the identifier value of the extracted multiframe identifier, and perform multiframe data reception according to the determined multiframe boundary.
  • FIG. 18 is a block diagram showing the structure of a multiframe receiving apparatus according to an embodiment of the present invention. As shown in FIG. 18, the apparatus includes, in addition to all the modules shown in FIG. 17, a judging module 182. Description.
  • the determining module 182 is configured to determine, according to the number of the extracted identifier values and the receiving sequence, whether the received multi-frame identifier is correct;
  • the receiving module 174 is further configured to perform multi-frame data reception according to the received multi-frame number if the determination result of the determining module is correct.
  • FIG. 19 is a structural block diagram of a communication device according to an embodiment of the present invention. As shown in FIG. 19, the device includes: a processor 192 and a transmission device 194, where
  • the processor 192 is configured to determine, according to the number of time slots of the physical layer, a multi-frame identifier for identifying the number of multi-frames, where the number of multi-frames is the number of frames constituting one multi-frame;
  • the transmitting device 194 is connected to the processor 192 and configured to send the multiframe to the receiving end, where the multiframe carries the multiframe identifier.
  • the transmitting device 194 may be further configured to sequentially carry the identifier values of the multi-frame identifiers in preset positions of the cost blocks of the frames constituting the multi-frame, where the identifier values are The number is the same as the number of multiframes.
  • the processor 192 is further configured to determine the number of timeslots according to an interface bandwidth speed of the physical layer.
  • FIG. 20 is a block diagram showing the structure of a communication device according to an embodiment of the present invention. As shown in FIG. 20, the device includes: a processor 202 and a transmission device 204, where
  • the processor 202 is configured to: on the received frame, extract a multi-frame identifier for identifying a multi-frame number, wherein the multi-frame number is a number of frames constituting one multi-frame;
  • the transmitting device 204 is connected to the processor 202 and configured to perform multiframe data reception according to the extracted multiframe identifier.
  • the processor 202 is further configured to, in the preset position of the received overhead block of each frame, sequentially extract an identifier value of the multi-frame identifier for indicating the number of multi-frames, where the number of the identifier values Same as the number of multiframes.
  • the processor 202 is further configured to determine a multiframe boundary according to the identifier value of the extracted multiframe identifier, and perform multiframe data reception according to the determined multiframe boundary.
  • the processor 202 is further configured to determine, according to the number of the extracted identifier values and the receiving sequence, whether the received multi-frame identifier is correct, and the transmitting device 204 may also be used to determine that the processor is correct.
  • the multiframe data is received according to the extracted multiframe identifier.
  • FIG. 21 is a structural block diagram of a communication network system according to an embodiment of the present invention. As shown in FIG. 21, the device includes: a first communication device 212 and a second communication device. 214, wherein
  • the first communication device 212 is configured to determine, according to the number of time slots of the physical layer, a multi-frame identifier for identifying the number of multi-frames, where the number of multi-frames is the number of frames constituting one multi-frame; and the multi-frame is sent to the a communication device, wherein the multiframe carries the multiframe identifier;
  • the second communication device 214 is connected to the first communication device 212, configured to extract a multi-frame identifier on the received frame, and perform multi-frame data reception according to the extracted multi-frame identifier.
  • the first communication device 212 may be further configured to carry, in sequence, each identifier value of the multi-frame identifier in a preset position of an overhead block of each frame constituting the multi-frame, where the number of the identifier value and the multi-frame
  • the second communication device 214 is further configured to sequentially extract the identifier value of the multi-frame identifier on the preset position of the received overhead block of each frame.
  • the second communication device 214 is further configured to determine, according to the number of the identifier values of the extracted multi-frame identifier and the receiving sequence, whether the received multi-frame identifier is correct; if the judgment result is correct, according to The extracted identification value determines a multiframe boundary; and performs multiframe data reception according to the determined multiframe boundary.
  • the first communication device 212 and the second communication device 214 may be both sides of data transmission and reception.
  • the first communication device 212 is a transmitting end
  • the second communication device 214 is a receiving end. If the second communication device 214 is a transmitting end, the first communication device 212 is a transmitting end.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors.
  • a computer storage medium is provided in an embodiment of the invention.
  • the computer storage medium may be configured to store computer executable code such as program code or application software for performing the following steps:
  • S1. Determine, according to the number of timeslots of the physical layer, a multi-frame identifier that is used to identify the number of multi-frames, where the number of multi-frames is the number of frames that constitute a multi-frame.
  • the multi-frame identifier may be multiple. a bit composition for indicating the number of the multiframes;
  • the multi-frame identifier may correspond to a character string, and each character in the character string may be dispersed in different frames of the multi-frame according to a preset bearer mode. For example, preset positions of different frames are reserved. One or more bits to carry a partial string in the multiframe identifier.
  • the computer storage medium is further configured to store a computer executable program such as program code or application software for performing the following steps: n-th order of the number of multi-frames, wherein n is such that the number of multi-frames is greater than or equal to The smallest positive integer of the number of time slots.
  • the computer storage medium is further configured to store a computer executable program such as program code or application software for performing the following steps: each identification value of the multi-frame identifier, which in turn is carried in an overhead block of each frame constituting the multi-frame.
  • the preset position wherein the number of the identification values is the same as the number of multi-frames.
  • the storage medium is further configured to store program code for performing the following steps: each of the identification values of the multi-frame identifier is a consecutive preset number of “0” and a continuous preset number of “1” Wherein, the number of multiframes is even, and the preset number is half of the number of multiframes.
  • the computer storage medium is further configured to store a computer executable program such as program code or application software for performing the following steps: the overhead location of the overhead block is an overhead multiframe indication OMF field.
  • the computer storage medium is further configured to store a computer executable program such as program code or application software for performing the following steps:
  • the method further includes: determining the number of slots according to the interface bandwidth speed of the physical layer.
  • a computer storage medium is further provided in an embodiment of the invention.
  • the computer storage medium is further configured to store a computer executable program such as program code or application software for performing the following steps:
  • the computer storage medium is further configured to store a computer executable program such as program code or application software for performing the following steps:
  • extracting the multi-frame identifier for identifying the multi-frame number includes: sequentially extracting, in the preset position of the overhead block of each frame, an identifier value of the multi-frame identifier, where the identifier value is The number is the same as the number of multiframes.
  • the computer storage medium is further configured to store a computer executable program such as program code or application software for performing the following steps: the overhead location of the overhead block is an overhead multiframe indication OMF field.
  • the computer storage medium is further configured to store a computer executable program such as program code or application software for performing the following steps:
  • performing multi-frame data reception includes:
  • the storage medium is further arranged to store program code for performing the following steps:
  • the method further includes:
  • performing multi-frame data reception includes:
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), and a removable hard disk.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • the computer storage medium can be selected as a non-transitory storage medium.
  • the processor performs the method steps in the foregoing embodiments according to the stored program code in the storage medium.
  • the processor can be a central processing unit, a microprocessor, a digital signal processor, an application processor, a programmable array, or an application specific integrated circuit.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the multiframe structure is determined according to the number of physical layer slots, and then is based on The determined multiframe result forms a multiframe identifier indicating the number of frames included in the multiframe, and sends a multiframe carrying the multiframe identifier to the receiving end. In this way, after receiving the multi-frame, the receiving end can determine the multi-frame structure by extracting the multi-frame identifier.
  • the flexible setting of the multi-frame structure is realized, and the adaptation of the number of different time slots of the physical layer can be realized;
  • the multi-frame structure of the receiving end can be notified by the transmission of the multi-frame identifier, so that the problem of introducing the abnormality of both sides of the communication is not set flexibly due to the multi-frame structure, so it has a positive effect.
  • the method provided by the embodiment of the present invention is implemented by the implementation and transmission of the multi-frame identifier, and has the characteristics of simple implementation and strong industrial achievability.

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Abstract

本发明提供了一种复帧发送、接收方法、装置、通讯设备及通讯网络系统，其中，该方法包括：根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；将复帧发送给接收端，其中，所述复帧携带有所述复帧标识。本发明实施例还提供一种计算机存储介质。

Description

复帧发送、接收方法、装置、设备、系统和存储介质
相关申请的交叉引用
本申请基于申请号为201611123813.5申请日为2016年12月08日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本发明涉及通信领域，具体而言，涉及一种复帧发送、接收方法、装置、通讯设备及通讯网络系统。
背景技术
用户网络信息流量的快速增加，促使着通讯网络信息传递带宽的快速发展，通讯设备的接口带宽速度从10M(单位：比特/秒，后同)提高到100M，又提高1G、10G，目前已经达到100G的带宽速度，市场上已经开始大量商用100G的光模块。目前已经研发出400G的光模块，但400G的光模块价格昂贵，超过了4个100G光模块的价格，导致400G光模块缺少商用的经济价值。
为了在100G光模块上传递400G业务，国际标准组织定义了灵活以太网(Flexible Ethernet，简称为FlexE)协议。FlexE协议将多个100G的光模块捆绑起来，形成一个大速度的传递通道，如图1，通过FLEXE协议将4个100G光模块捆绑起来，形成一个400G传递通道，等效于1个400G的光模块的传递速度，在不增加成本的情况下解决了400G业务的传递需求。
目前FlexE协议定义的物理层是100G，在100G的物理层上定义了20个时隙。同时定了FLEXE复帧结构，复帧结构由32个帧组成，在一个复帧结构中前20个帧可以传递每个时隙的配置信息，后12帧的对应位置暂时保留下来。对于25G、200G、400G等物理层，无法使用原来的复帧结构传 递每个时隙的配置信息。
在现有技术中，复帧结构单一局限多，且32个帧组成的复帧并不能适用于不同带宽的物理层，从而导致复帧与不同带宽接口的带宽兼容性差的问题。
发明内容
本发明实施例中提供了一种复帧发送、接收方法、装置、通讯设备及通讯网络系统和计算机存储介质，以至少解决相关技术中FlexE协议的复帧结构存在对不同接口带宽兼容性差的问题。
根据本发明的一个实施例，提供了一种复帧发送方法，包括：根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；将复帧发送给接收端，其中，所述复帧携带有所述复帧标识。
预设个数的“0”预设个数的“1”根据本发明的另一个实施例，提供了一种复帧接收方法，包括：在接收到的帧上，提取用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；根据提取的所述复帧标识，进行复帧数据接收。
根据本发明的又一个实施例，提供了一种复帧发送装置，包括：第一确定模块，配置为根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；发送模块，配置为将复帧发送给接收端，其中，所述复帧携带有所述复帧标识。
根据本发明的又一个实施例，提供了一种通讯设备，包括：处理器和传输装置，其中，所述处理器，配置为根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；所述传输装置，用于将复帧发送给接收端，其中，所述复帧携带有所述复 帧标识。
根据本发明的又一个实施例，提供了一种通讯网络系统，包括：第一通讯设备和第二通讯设备，其中，所述第一通讯设备，配置为根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；将确定的所述复帧标识，将复帧发送给第二通讯设备，其中，所述复帧携带有所述复帧标识；所述第二通讯设备，配置为在接收到的帧上，提取所述复帧标识；根据提取的所述复帧标识，进行所述复帧数据接收。
根据本发明的又一个实施例，还提供了一种计算机存储介质。该存储介质设置为存储计算机可执行代码，所述计算机可执行代码被执行后，能够实现前述一个或多个技术方案提供的方法。
在本发明实施例中，首先，复帧结构(例如，复帧结构包括的帧(此处的帧可为基本帧，是组成复帧的基本单位)的个数)，是根据物理层的时隙数量确定的，故不在局限于现有技术中仅有的32个帧组成的复帧结构，实现了帧的灵活设置。与此同时，物理层的时隙数量又与接口可提供的带宽是对应的，且是与不同接口的物理层可以提供的带宽相适配的。
其次，复帧结构可以灵活设置，为了解决灵活设置的当前复帧结果，还会根据确定的复帧包括的复帧个数，确定出指示当前复帧的帧个数的复帧标识，并将复帧标识携带在复帧中发送给接收端，接收端接收到复帧的同时，接收到复帧的复帧标识，根据该复帧标识，接收端可以知道复帧之间的边界，例如，确定当前复帧包括的帧个数，当前复帧的起始帧及结束帧等，从而提取出复帧内携带的信息，实现了发送端和接收端之前灵活复帧的信息收发。
综上所述，本发明实施例提供的技术方案，可以灵活设置一个复帧包括的帧的个数，可以按照不同接口的带宽来进行灵活设定，因此，可以解决相关技术中FlexE协议的复帧结构存在对不同接口带宽兼容性差的问题，达到提高FlexE协议的复帧结构对不同接口带宽兼容性的效果。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是相关技术中的FLEXE协议应用示意图；
图2是本发明实施例的复帧发送方法的通讯设备的硬件结构框图；
图3是根据本发明实施例的复帧发送方法的流程图；
图4是根据本发明实施例的复帧接收方法的流程图；
图5是根据本发明可选实施例中的FlexE协议开销块和数据块排列位置示意图；
图6是根据本发明可选实施例中的FlexE协议业务在多物理通道上分配示意图；
图7是根据本发明可选实施例中的FlexE协议帧结构示意图；
图8是根据本发明可选实施例中的FlexE协议复帧结构示意图；
图9是根据本发明可选实施例中的FlexE协议扩充时物理层从100G修改为25G的示意图；
图10是根据本发明可选实施例中的FlexE协议扩充时物理层从100G修改为200G的示意图；
图11是根据本发明可选实施例中的FlexE协议扩充时物理层从100G修改为400G的示意图；
图12是根据本发明可选实施例中的FlexE协议扩充时物理层为25G时的复帧结构示意图；
图13是根据本发明可选实施例中的FlexE协议扩充时物理层为200G时的复帧结构示意图；
图14是根据本发明可选实施例中的FlexE协议扩充时物理层为400G时的复帧结构示意图；
图15是根据本发明实施例的复帧发送装置的结构框图一；
图16是根据本发明实施例的复帧发送装置的结构框图二；
图17是根据本发明实施例的复帧接收装置的结构框图一；
图18是根据本发明实施例的复帧接收装置的结构框图二；
图19是根据本发明实施例的通讯设备的结构框图一；
图20是根据本发明实施例的通讯设备的结构框图二；
图21是根据本发明实施例的通讯网络系统的结构框图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，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。
需要说明的是，本发明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。
实施例1
本申请实施例1所提供的方法实施例可以在通讯设备、计算机终端或者类似的运算装置中执行。以运行在通讯设备上为例，图2是本发明实施例的复帧发送方法的通讯设备的硬件结构框图。如图2所示，通讯设备20可以包括一个或多个(图中仅示出一个)处理器22(处理器22可以包括但不限于微处理器MCU或可编程逻辑器件FPGA等的处理装置)、用于存储数据的存储器24、以及用于通信功能的传输装置26。本领域普通技术人员可以理解，图2所示的结构仅为示意，其并不对上述电子装置的结构造成限定。例如，通讯设备20还可包括比图2中所示更多或者更少的组件，或者具有与图2所示不同的配置。
存储器24可配置为存储应用软件的软件程序以及模块，如本发明实施例中的复帧发送方法对应的程序指令/模块，处理器22通过运行存储在存储器24内的软件程序以及模块，从而执行各种功能应用以及数据处理，即实现上述的方法。存储器24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24可进一步包括相对于处理器22远程设置的存储器，这些远程存储器可以通过网络连接至通讯设备20。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置26配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通讯设备20的通信供应商提供的无线网络。在一个实例中，传输装置26包括一个网络适配器(Network Interface Controller，简称为NIC)，其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26可以为射频(Radio Frequency，简称为RF)模块，其用于通过无线方式与互联网进行通讯。
在本实施例中提供了一种运行于上述通讯设备上的复帧发送方法，图3是根据本发明实施例的复帧发送方法的流程图，如图3所示，该流程包括如下步骤：
步骤S302，根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，复帧数为组成一个复帧的帧的个数；
步骤S304，将复帧发送给接收端，其中，该复帧携带有上述复帧标识。
通过上述步骤，根据物理层的时隙数量，确定用于标识复帧数(组成一个复帧的帧的个数)的复帧标识，将携带有确定的复帧标识的复帧，发送给接收端，解决了相关技术中FLEXE协议的复帧结构存在对不同接口带宽兼容性差的问题，提高了FLEXE协议的复帧结构对不同接口带宽兼容性。
可选地，上述复帧数可以为2的n次方，其中，n为使得复帧数大于或者等于时隙数量的最小正整数。复帧数也可以为其他大于等于时隙数量的正整数，将复帧数限定为上述形式，可以使得复帧的子帧结构的对称和设计方便。
可选地，可以采用如下方式，将复帧标识携带在复帧中，所述复帧标识的各个标识值，依次携带在组成所述复帧的各个帧的开销块的预设位置，其中，所述标识值的个数与所述复帧数相同。复帧标识可以为一组由“0”和“1”组成的字符串，例如，复帧标识的各个标识值可以依次为连续的预设个数的“0”和连续的所预设个数的“1”，其中，复帧数为偶数，预设个数为复帧数的一半。也就是说，确定的复帧标识为由连续的m个0和连续 的m个1组成的字符串，m的值为复帧数的一半。
复帧标识对应字符串中相邻的两个或多个字符，由复帧中的不同帧来携带。例如，一个复帧的复帧标识为字符串“00001111”，该复帧标识由复帧中8个帧来携带，一个帧携带所述字符串一个字符，例如，该复帧中前4个连续帧携带字符“0”，该复帧中后4个连续帧携带字符“1”，例如，利用不同帧的预设位置来携带，实现了相同字符“0”或“1”的分开发送。
在一些实施例中，接收端接收到复帧之后，会到预设位置提取构成所述复帧标识的字符，然后组合提取的字符，形成所述复帧标识。由于复帧标识有一组由预设个数的“0”构成或预设个数“1”组成，这样的话，当接收端接收到预设个数“0”及一个“1”之后，就可以根据复帧标识中“0”的个数，提前确定出当前复帧包括的帧的个数，从而确定出复帧边界，加速了复帧结构和边界的确定。
可选地，在确定复帧包括的帧的个数时，结合所述复帧标识及不同接口的带宽，可精确确定出一个复帧包括的帧个数。
可选地，发送标识值的上述预设位置可以是为开销块的开销复帧指示(Overhead Multi-frame Indicator，简称为OMF)字段。利用了现有的开销块的结构，可以提高复帧发送方法的前向兼容性。
可选地，在步骤S302之前，还可以根据物理层的接口带宽速度，确定时隙数量。接口带宽速度和时隙数量之间的关系可以是时隙数量等于接口带宽速度除以5G，这里的接口可以由多种形式，例如，光接口等。
可选地，在步骤S302中，可以采用多种方式确定复帧标识，例如，可以首先根据物理层的时隙数量，确定复帧数；然后根据复帧数，确定用于标识该复帧数的复帧标识。
又例如，可以预设时隙数量与复帧标识的对应关系，根据对应关系，直接确定与时隙数量对应的复帧标识。
再例如，在步骤S302中，还可以根据物理层的带宽速度，以及带宽速度与复帧标识之间的对应关系，直接根据物理层的带宽速度确定对应的复帧标识。
对于本发明实施例的数据接收方法的通讯设备的硬件结构，与上述通讯设备20类似，这里不做赘述。
在本实施例中还提供了一种复帧接收方法，图4是根据本发明实施例的复帧接收方法的流程图，如图4所示，该流程包括如下步骤：
步骤S402，在接收到的帧上，提取用于标识复帧数的复帧标识，其中，复帧数为组成一个复帧的帧的个数；
步骤S404，根据提取的复帧标识，进行复帧数据接收。
通过上述步骤，在接收到的帧上，提取用于标识复帧数(组成一个复帧的帧的个数)的复帧标识，并根据提取的复帧标识，进行复帧数据接收，解决了相关技术中FlexE协议的复帧结构存在对不同接口带宽兼容性差的问题，提高了FlexE协议的复帧结构对不同接口带宽兼容性。
可选地，步骤S402可以采用如下方式实现：在接收到的各个帧的开销块的预设位置，依次提取用于指示复帧数的复帧标识的标识值，其中，标识值的个数与复帧数相同。当然，也可以在接收到的帧的其他位置上进行复帧标识的提取，只要接收端和发送端可以根据双方协商或者协议规定，确定该预设位置即可。
可选地，上述预设位置可以为开销块的OMF字段。
可选地，步骤S404可以采用如下方式进行复帧数据接收：根据提取的该复帧标识的标识值，确定复帧边界；根据确定的复帧边界，进行复帧数据接收。通过确定复帧边界，可以确定各个复帧的起始位置和终止位置，确定一个完整的复帧，以便进行复帧数据接收。
可选地，在步骤S402之后，还可以根据提取的标识值的个数以及接收顺序，判断接收到的复帧标识是否正确；在判断结果为正确的情况下，根据提取的该复帧标识，进行复帧数据接收。
可选地，上述复帧发送方法和复帧接收方法可以应用于基于FlexE协议组网的系统中。
基于上述实施例及可选实施方式，为说明方案的整个流程交互，在本可选实施例中，提供了一种FlexE协议中复帧指示方法，包括了发送端的 复帧发送方法以及接收端的复帧接收方法，该方法可以应用于包括发送端和接收端的系统。下面对该方法进行说明。
在过去十年中，网络业务流量一直保持高速增长，促使通讯设备的业务带宽快速增长，通讯设备的接口速度从10M带宽提高到100M，再提高1G、10G，每隔几年业务速度就翻几倍，以适应网路上业务流量的需求。目前通讯设备商用光模块的速度已经达到100G，并开始大量商用。在光模块速度开始超越100G时，光模块研发技术上遇到的困难越来越大，光模块的生产成本急剧增加。在从100G向400G发展中，虽然目前已经研发出400G的光模块，但400G的光模块的价格昂贵，已经超过了4个100G光模块的价格，导致400G光模块缺少商用的经济价值。在不增加成本的情况下，为了解决400G业务的传递需求，能在100G光模块上传递400G业务，国际标准组织定义了FLEXE协议。FLEXE协议将多个100G的光模块捆绑起来，形成一个大业务速度的传递通道，如图1所示，通过FlexE协议将4个100G光模块捆绑起来，形成一个400G传递通道，等效于1个400G光模块的业务传递速度，既满足了400G业务的传递需求，也解决了业务传递的经济价值问题。
目前，FLEXE协议按照物理层100G速率来定义。在光模块中，100G的数据报文在发送前，是将数据包报文进行64/66编码，将64比特的数据块扩展成66比特的信息块，增加的2比特位于66比特块前面，作为66比特块的开始标志，然后以66比特块的方式从光口发送出去。在接收时，光口从接收到的数据流中辨别出66比特块，然后从66比特块中恢复出原始的64比特数据，重新组装出数据报文来。FLEXE协议处于64比特到66块转换层，在发送66比特数据块前，对66比特的数据块进行排序和规划，如图5所示，对于100G业务，每20个66比特数据块划分为一个数据块组，每组中共20个数据块，代表20个时隙，每个时隙代表5G带宽的业务速度。发送66比特的数据块时，每发送完1023个数据块组(1023*20个数据块)，插入一个FLEXE开销块，如图5中所示的黑色块。插入开销块后，继续发送数据块，发送完第二个1023*20个数据块后，再插入开销块，以此类推，这样在发送数据块的过程中，会周期性地插入开销块，相邻两个开销块的间隔是1023*20个数据块。
当4路100G的物理层捆绑成一个400G的逻辑业务带宽时，如图6所示，每个物理层仍按照20个数据块组成一个数据块组，每1023个数据块组插入一个开销字节。在FlexE shim层，4路20个数据块拼装成一个由80个数据块组成的数据块组，块组中有80个时隙。客户业务在这80个时隙中进行传递，每个时隙带宽是5G，共400G的业务传递带宽。
FlexE开销块是一个66比特长的开销块，在业务数据流发送时，每间隔1023*20个数据块插入一个开销块。开销块在整个业务流中起到定位功能，找到开销块，就可以知道业务中第一个数据块组的位置，以及后续的数据块组的位置。开销块的内容如图7所示，连续8个开销块(即，连续8个数据块组的开销块)则组成一个开销帧。一个开销块由2比特的块标志和64位的块内容组成。块标志位于前2列，后面64列是块内容，第一个开销块的块标志是10，后面7个开销块的块标志是“01”或“SS”(SS表示内容不确定)。第一个开销块的内容是：“0x4B”(8位，十六进制的4B)、C比特(1位，指示调整控制)、OMF比特(1位，表示开销复帧指示)、RPF比特(1位，表示远端缺陷指示)、RES比特(1位，保留位)、FlexE group number(20位，表示捆绑组的编号)、0x5(4位，十六进制的5)、000000(28位，都是0)。其中，0x4B和0x5是第一个开销块的标志指示，在接收时，当找到一个开销块中对应位置是0x4B和0x5，则表示该开销块是开销帧中的第一个开销块，和次后连续的7个开销块组成一个开销帧。在开销帧中，保留位(reserved)部分是保留内容，尚未定义，见图7中的黑色块。开销帧中其他字节内容与本可选实施例的方法没有关系，不再具体说明。
在FlexE协议中，定义8个开销块组成一帧，如图7所示，其中第一个开销块中由4B(16进制，标识为“0”x4B)和05(16进制，标识为“0”x5)两个字段标识。当开销块中，检测出对应位置的内容是4B和05时，则表示该开销块是第一个开销块，和后面的7个开销块组成一帧。在第一个开销块中，OMF字段是复帧指示信号，如图8所示。OMF是单比特数值，连续16帧中为“0”，然后连续16帧中为“1”，然后又是连续16帧中为“0”，然后连续16帧中为“1”，每32帧重复一次，这样复帧就是由32帧组成。
在开销帧中，Client calendar字段表示每个时隙的配置信息，有两套配置信息，Client calendar A和Client calendar B，两套配置值分别工作在工作模式和备用模式，用于动态、平滑地切换配置信息。在一个时间点，只有一套配置值处于工作模式，另外一个配置值处于备用模式。当需要修改配置值，则修改备用模式的配置值，同时通知对端表示本端口的配置值发生了变化，对端根据新的配置值进行准备，准备好后回送给发起端，等两端协商一致后，启动配置表的切换流程，则原来处于工作模式配置表变为备用模式，将原来处于备用模式配置表修变为工作模式，实现配置信息的动态调整。在100G物理层中共有20个时隙，每个时隙都需要一套配置表，共需要20套配置表。OMF值指示复帧结构，一个复帧由32帧组成，这样一帧中只传递一个时隙的配置表，20帧就可以传递完所有时隙的配置信息，剩余的12帧中配置信息位置为保持字段，如图8所示。
当物理层从100G扩展为25G时，每个时隙仍保持5G，则物理层只需要5个时隙，如图9所示。当物理层从100G扩展为200G时，每个时隙仍保持5G，则物理层只需要40个时隙，如图10所示。同理，当物理层从100G扩展为400G时，每个时隙仍保持5G，则物理层只需要80个时隙，如图11所示。由于每个物理层的时隙数量发生了变化，每个时隙需要配置信息，需要定义每个时隙配置信息的传递方式。原FLEXE协议复帧定义格式只适合100G的物理层，不适合其他速率的物理层。本可选实施例给出了不同物理带宽、不同时隙数量时的复帧指示方式。
本发明可选实施例中所提供的FLEXE协议中复帧指示方法包括以下步骤：
步骤1，在发送端，确定复帧标志图案(作用同前述复帧标识)，复帧标志图案是由连续“0”和连续“1”组成，连续“0”和连续“1”的个数与物理层的时隙数量有关。
上述步骤1可以包括如下步骤：
步骤1.1，在FlexE协议的开销帧结构中，确定物理层时隙数量。
根据物理层的带宽可以确定物理层的时隙数量，每个时隙带宽可以是5G，物理层的带宽除以5G，就可以知道物理层的时隙数量。对于10G物理 层，时隙数量是2；对于25G物理层，时隙数量5；对于40G的物理带宽，时隙数量是8；对于50G的物理带宽，时隙数量是10；对于200G的物理带宽，时隙数量是40；对于400G的物理带宽，时隙数量是80。
步骤1.2，根据物理层的时隙数量确定复帧数值，即多少帧组成一个复帧。
上述步骤1.2可以包括如下步骤：
步骤1.2.1，根据物理层的时隙数量，确定比时隙数量大的复帧数m，复帧数m等于2的n次方，n是满足约束条件(复帧数量大于时隙数量)中最小的一个正整数。
步骤1.2.1也即寻找比时隙数大的复帧数m，复帧数m等于2的n次方，n是满足约束条件要求(复帧数量大于时隙数量)中最小的一个正整数。例如，对于25G的物理层，当时隙数量为5时，复帧数m等于2的n次方，n可以从1、2、3、4、5……(大于0的正整数)中选择。但n为“1”、2时，复帧数为2和4，不满足复帧数量大于时隙数量；n为3、4、5……时，复帧数为8、16、32……，满足复帧数量大于时隙数量。在这些可以选择的值中，3为最小的一个正整数，因此n选择3。以此类推，对于200G的物理层，时隙数量为40时，则n为6，复帧数m等于2的6次方，复帧数值为64，大于时隙数40；对于400G的物理层，时隙数量为80时，则n为7，m等于2的7次方，复帧数值为“1”28，大于时隙数量80。也就是说，时隙数量为5时，则n为3，复帧数m等于2的3次方，复帧数为8，大于时隙数5；时隙数量为40时，则n为6，复帧数m等于2的6次方，复帧数为64，大于时隙数40；时隙数量为80时，则n为7，m等于2的7次方，时隙数量为“1”28，大于时隙数量80。
步骤1.2.2，确定组成复帧标识图案的连续为“0”的数量等于复帧数值的一半，连续为“1”的数量也等于复帧数值的一半，连续为“0”和连续为“1”的字符串组成复帧标识图案。
需要说明的是，组成复帧图案的“0”和“1”的个数也可以为其他值，只要连续为“0”的数量和连续为“1”的数量的和等于确定的复帧数值即可。为了对称和设计方便，本可选实施例中采用的是连续为“0”的数量和 连续为“1”的数量相等的方式。
步骤1.3，根据复帧数量确定开销中OMF字段连续为“0”的数量和连续为“1”的数量，连续为“0”的数量等于复帧数的一半，连续为“1”的数量也等于复帧数的一半，连续为“0”和连续为“1”的信息比特组成复帧标志图案。
确定复帧数值后，确定OMF连续发送“0”的数量为复帧数值的一半，确定OMF连续发送“1”的数量也为复帧数值的一半，连续为“0”和连续为“1”的字符串组成了复帧结构标志图案。
步骤2，在发送端，OMF字段按照确定的复帧标志图案循环地发送出去。
在发送端，OMF按照复帧结构标志图案发送，先发送连续为“0”部分，再发送连续为“1”部分，一个复帧结束后又重复发送复帧图案(如图12、13、14所示)。
步骤3，在接收端，提取OMF字段内容，根据确定的复帧结构图案，判断接收的复帧结构图案是否正确，给出复帧边界。
本可选实施例中所提供的FlexE协议复帧指示方法可以应用于FLEXE协议复帧指示装置，该装置包括以下三部分：复帧图案信息产生模块、复帧图案信息接收模块、复帧图案判断模块。
在发送端，复帧图案产品模块根据物理层的速度确定复帧信息图案。
复帧标志图案是由连续“0”和连续“1”组成，连续“0”和连续“1”的个数与物理层的时隙数量有关。连续为“0”的数量等于复帧数的一半，连续为“1”的数量也等于复帧数的一半，连续为“0”和连续为“1”的信息比特组成复帧标志图案。复帧数满足这个条件：(1)复帧数m是比时隙数大；(2)复帧数m等于2的n次方，n是满足约束条件(复帧数量大于时隙数量)中最小的一个正整数。
例如，对于25G速率的物理层，时隙数量为5，复帧数是8，一个复帧由8个帧组成，复帧图案就是00001111，连续为“0”的个数为4，连续为“1”的个数是4，共8帧(即，每8个帧)循环一次；对于50G速率的物理层，时隙数量为“1”0，复帧数是16，一个复帧由16个帧组成，复帧图 案就是0000000011111111，连续为“0”的个数为8，连续为“1”的个数是8，共16帧(即，每16个帧)循环一次；对于200G速率的物理层，时隙数量为40，复帧数是64，一个复帧由64个帧组成，复帧图案就是：
0000000000000000000000000000000011111111111111111111111111111111，连续为“0”的个数是32，连续为“1”的个数也是32，共64帧(即，每64个帧)循环一次；对于400G速率的物理层，有80个时隙，复帧数是128，一个复帧由128个帧组成，一个复帧由128个帧组成，复帧图案就是：
00000000000000000000000000000000000000000000000000000000000000001111111111111111111111111111111111111111111111111111111111111111，连续为“0”的个数是64，连续为“1”的个数也是64，共128帧(即，每128个帧)循环一次。
在接收端，复帧图案信息接收模块提取接收的FLEXE帧中OMF字段的内容，并将提取的内容保存起来；复帧图案判断模块根据发送端的复帧标识图案格式检测接收内容是否正确。在复帧图案正确的情况下，给出复帧边界，复帧中第一帧位置。
通过本发明可选实施例的上述技术方案，发送端根据物理层的时隙数量确定复帧数，并根据确定的复帧数确定复帧标志图案，将确定的复帧标识图案在开销帧的预设位置(例如，OMF字段)上向接收端循环发送，接收端提取OMF字段内容，根据确定的复帧结构图案，给出复帧边界，给出了不同物理带宽、不同时隙数量时的复帧指示方式，提高了FlexE协议中复帧指示方式的兼容性。
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必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有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ROM/RAM、磁碟、光盘)中，包括若干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)执行本发明各个实施例所述的 方法。
实施例2
在本实施例中还提供了一种复帧发送装置，该装置用于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较佳地以软件来实现，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15是根据本发明实施例的复帧发送装置的结构框图一，如图15所示，该装置包括：
第一确定模块152，配置为根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，复帧数为组成一个复帧的帧的个数；
发送模块154，配置为将复帧发送给接收端，其中，该复帧携带有上述复帧标识。
可选地，该复帧数可以为2的n次方，其中，n为使得复帧数大于或者等于时隙数量的最小正整数。
可选地，发送模块154，还可以配置为将复帧标识的各个标识值，依次携带在组成复帧的各个帧的开销块的预设位置，其中，标识值的个数与所述复帧数相同。
图16是根据本发明实施例的复帧发送装置的结构框图二，如图16所示，该装置除包括图15所示的所有模块外，还包括：
第二确定模块162，配置为根据物理层的接口带宽速度，确定时隙数量。
在本实施例中还提供了一种复帧接收装置，图17是根据本发明实施例的复帧接收装置的结构框图一，如图17所示，该装置包括：
提取模块172，配置为在接收到的帧上，提取用于标识复帧数的复帧标识，其中，复帧数为组成一个复帧的帧的个数；
接收模块174，与上述提取模块172相连，配置为根据提取的复帧标识，进行复帧数据接收。
可选地，提取模块172，还可以配置为在接收到的各个帧的开销块的预 设位置上，依次提取复帧标识的标识值，其中，标识值的个数与复帧数相同。
可选地，接收模块174，还可以配置为根据提取的复帧标识的标识值，确定复帧边界；根据确定的复帧边界，进行复帧数据接收。
图18是根据本发明实施例的复帧接收装置的结构框图二，如图18所示，该装置除包括图17所示的所有模块外，还包括：判断模块182，下面对该装置进行说明。
判断模块182，配置为根据与提取的标识值的个数以及接收顺序，判断接收到的复帧标识是否正确；
接收模块174，还配置为在判断模块的判断结果为正确的情况下，根据接收的复帧数，进行复帧数据接收。
在本实施例中还提供了一种通讯设备，图19是根据本发明实施例的通讯设备的结构框图一，如图19所示，该设备包括：处理器192和传输装置194，其中，
处理器192，配置为根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，复帧数为组成一个复帧的帧的个数；
传输装置194，与上述处理器192相连，配置为将复帧发送给接收端，其中，该复帧携带有上述复帧标识。
可选地，传输装置194，还可以配置为将所述复帧标识的各个标识值，依次携带在组成所述复帧的各个帧的开销块的预设位置，其中，所述标识值的个数与所述复帧数相同。
可选地，处理器192，还可以配置为根据物理层的接口带宽速度，确定时隙数量。
在本实施例中还提供了一种通讯设备，图20是根据本发明实施例的通讯设备的结构框图二，如图20所示，该设备包括：处理器202和传输装置204，其中，
处理器202，配置为在接收到的帧上，提取用于标识复帧数的复帧标识，其中，复帧数为组成一个复帧的帧的个数；
传输装置204，与上述处理器202相连，配置为根据提取的复帧标识，进行复帧数据接收。
可选地，处理器202，还可以配置为在接收到的各个帧的开销块的预设位置上，依次提取用于指示复帧数的复帧标识的标识值，其中，标识值的个数与复帧数相同。
可选地，处理器202，还可以配置为根据提取的复帧标识的标识值，确定复帧边界；根据确定的复帧边界，进行复帧数据接收。
可选地，处理器202，还可以配置为根据提取的标识值的个数以及接收顺序，判断接收到的复帧标识是否正确；传输装置204，还可以用于在处理器的判断结果为正确的情况下，根据提取的复帧标识，进行复帧数据接收。
在本实施例中还提供了一种通讯网络系统，图21是根据本发明实施例的通讯网络系统的结构框图，如图21所示，该设备包括：第一通讯设备212和第二通讯设备214，其中，
第一通讯设备212，配置为根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，复帧数为组成一个复帧的帧的个数；将复帧发送给第二通讯设备，其中，该复帧携带有上述复帧标识；
第二通讯设备214，与上述第一通讯设备212相连，配置为在接收到的帧上，提取复帧标识；根据提取的复帧标识，进行复帧数据接收。
可选地，第一通讯设备212，还可以配置为将复帧标识的各个标识值，依次携带在组成复帧的各个帧的开销块的预设位置，其中，标识值的个数与复帧数相同；第二通讯设备214，还可以用于在接收到的各个帧的开销块的预设位置上，依次提取复帧标识的标识值。
可选地，第二通讯设备214，还可以配置为根据提取的复帧标识的标识值的个数以及接收顺序，判断接收到的复帧标识是否正确；在判断结果为正确的情况下，根据提取的标识值，确定复帧边界；根据确定的复帧边界，进行复帧数据接收。
所述第一通讯设备212和所述第二通讯设备214可为数据收发的双方，例如，第一通讯设备212为发送端，则所述第二通讯设备214为接收端， 若所述第二通讯设备214为发送端，则所述第一通讯设备212为发送端。
需要说明的是，上述各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，上述各个模块以任意组合的形式分别位于不同的处理器中。
实施例3
本发明的实施例中提供了一种计算机存储介质。可选地，在本实施例中，上述计算机存储介质可以被设置为存储用于执行以下步骤的程序代码或应用软件等计算机可执行代码：
S1，根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，复帧数为组成一个复帧的帧的个数；在实施例中，所述复帧标识可以多个比特组成，用于指示所述复帧的个数；
S2，将复帧发送给接收端，其中，复帧携带有复帧标识。所述复帧标识可对应了字符串，所述字符串中的各个字符，可以按照预设承载方式，分散在所述复帧的不同帧中，例如，不同帧的预设位置都预留出一个或多个比特来携带所述复帧标识中的部分字符串。
可选地，计算机存储介质还被设置为存储用于执行以下步骤的程序代码或应用软件等计算机可执行程序：复帧数为2的n次方，其中，n为使得复帧数大于或者等于时隙数量的最小正整数。
可选地，计算机存储介质还被设置为存储用于执行以下步骤的程序代码或应用软件等计算机可执行程序：复帧标识的各个标识值，依次携带在组成复帧的各个帧的开销块的预设位置，其中，标识值的个数与复帧数相同。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：复帧标识的各个标识值依次为连续的预设个数的“0”和连续的预设个数的“1”，其中，复帧数为偶数，预设个数为复帧数的一半。
可选地，计算机存储介质还被设置为存储用于执行以下步骤的程序代码或应用软件等计算机可执行程序：预设位置为开销块的开销复帧指示OMF字段。
可选地，计算机存储介质还被设置为存储用于执行以下步骤的程序代码或应用软件等计算机可执行程序：
在根据物理层的时隙数量，确定用于标识复帧数的复帧标识之前，还包括：根据物理层的接口带宽速度，确定时隙数量。
本发明的实施例中又提供了一种计算机存储介质。可选地，在本实施例中，上述计算机存储介质还被设置为存储用于执行以下步骤的程序代码或应用软件等计算机可执行程序：
S1，在接收到的帧上，提取用于标识复帧数的复帧标识，其中，复帧数为组成一个复帧的帧的个数；
S2，根据提取的复帧标识，进行复帧数据接收。
可选地，计算机存储介质还被设置为存储用于执行以下步骤的程序代码或应用软件等计算机可执行程序：
在接收到的帧上，提取用于标识复帧数的复帧标识包括：在接收到的各个帧的开销块的预设位置上，依次提取复帧标识的标识值，其中，标识值的个数与复帧数相同。
可选地，计算机存储介质还被设置为存储用于执行以下步骤的程序代码或应用软件等计算机可执行程序：预设位置为开销块的开销复帧指示OMF字段。
可选地，计算机存储介质还被设置为存储用于执行以下步骤的程序代码或应用软件等计算机可执行程序：
根据提取的复帧标识，进行复帧数据接收包括：
S1，根据提取的复帧标识的标识值，确定复帧边界；
S2，根据确定的复帧边界，进行复帧数据接收。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
在接收到的帧的预设位置上，提取用于标识复帧数的复帧标识之后，还包括：
S1，根据提取的标识值的个数以及接收顺序，判断接收到的复帧标识 是否正确；
根据提取的复帧标识，进行复帧数据接收包括：
S2，在判断结果为正确的情况下，根据提取的复帧标识，进行复帧数据接收。
可选地，在本实施例中，上述存计算机储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。该计算机存储介质可选为非瞬间存储介质。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行上述实施例中的方法步骤。该处理器，可为中央处理器、微处理器、数字信号处理器、应用处理器、可编程阵列或专用集成电路等。
选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例中在此不再赘述。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各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各个集成电路模块，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，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的可选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
本发明实施例中复帧结构是根据物理层时隙个数确定的，然后基于 确定的复帧结果形成指示复帧包括的帧个数的复帧标识，并向接收端发送携带有该复帧标识的复帧。如此，接收端接收到复帧之后，通过复帧标识的提取可以确定出复帧结构，一方面实现了复帧结构的灵活设置，可以实现了与物理层不同时隙个数的适配；另一方面复帧结构灵活设置之后，可以通过复帧标识的发送告知接收端复帧结构，从而不会因为复帧结构灵活设置引入通讯双方异常的问题，故具有积极的效果。于此同时仅通过复帧标识的实现及发送，就实现了本发明实施例提供的方法，具有实现简单的特点，从而工业可实现性强的特点。

Claims (29)

  1. 一种复帧发送方法，包括：
    根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；
    将复帧发送给接收端，其中，所述复帧携带有所述复帧标识。
  2. 根据权利要求1所述的方法，其中，所述复帧数为2的n次方，其中，所述n为使得所述复帧数大于或者等于所述时隙数量的最小正整数。
  3. 根据权利要求1所述的方法，其中，所述复帧标识的各个标识值，依次携带在组成所述复帧的各个帧的开销块的预设位置，其中，所述标识值的个数与所述复帧数相同。
  4. 根据权利要求3所述的方法，其中，所述复帧标识的各个标识值依次为连续的预设个数的“0”和连续的所述预设个数的“1”，其中，所述复帧数为偶数，所述预设个数为所述复帧数的一半。
  5. 根据权利要求3所述的方法，其中，所述预设位置为所述开销块的开销复帧指示OMF字段。
  6. 根据权利要求1至5中任一项所述的方法，其中，在根据所述物理层的所述时隙数量，确定用于标识复帧数的所述复帧标识之前，还包括：
    根据所述物理层的接口带宽速度，确定所述时隙数量。
  7. 一种复帧接收方法，包括：
    在接收到的帧上，提取用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；
    根据提取的所述复帧标识，进行复帧数据接收。
  8. 根据权利要求7所述的方法，其中，在接收到的所述帧上，提取用于标识复帧数的所述复帧标识包括：
    在接收到的各个帧的开销块的预设位置上，依次提取所述复帧标识的标识值，其中，所述标识值的个数与所述复帧数相同。
  9. 根据权利要求8所述的方法，其中，所述预设位置为所述开销块的开销复帧指示OMF字段。
  10. 根据权利要求8所述的方法，其中，根据提取的所述复帧标识，进行复帧数据接收包括：
    根据提取的所述复帧标识的所述标识值，确定复帧边界；
    根据确定的所述复帧边界，进行复帧数据接收。
  11. 根据权利要求8至10中任一项所述的方法，其中，
    在接收到的帧的所述预设位置上，提取用于标识复帧数的所述复帧标识之后，还包括：根据提取的所述标识值的个数以及接收顺序，判断接收到的所述复帧标识是否正确；
    根据提取的所述复帧标识，进行复帧数据接收包括：在所述判断结果为正确的情况下，根据提取的所述复帧标识，进行复帧数据接收。
  12. 一种复帧发送装置，包括：
    第一确定模块，配置为根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；
    发送模块，配置为将复帧发送给接收端，其中，所述复帧携带有所述复帧标识。
  13. 根据权利要求12所述的装置，其中，
    所述发送模块，还配置为将所述复帧标识的各个标识值，依次携带在组成所述复帧的各个帧的开销块的预设位置，其中，所述标识值的个数与所述复帧数相同。
  14. 根据权利要求12或13所述的装置，其中，还包括：
    第二确定模块，配置为根据所述物理层的接口带宽速度，确定所述时隙数量。
  15. 一种复帧接收装置，包括：
    提取模块，配置为在接收到的帧上，提取用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；
    接收模块，配置为根据提取的所述复帧标识，进行复帧数据接收。
  16. 根据权利要求15所述的装置，其中，
    所述提取模块，还配置为在接收到的各个帧的开销块的预设位置上，依次提取所述复帧标识的标识值，其中，所述标识值的个数与所述复帧数相同。
  17. 根据权利要求16所述的装置，其中，所述接收模块，还配置为根据提取的所述复帧标识的所述标识值，确定复帧边界；根据确定的所述复帧边界，进行复帧数据接收。
  18. 根据权利要求16或17所述的装置，其中，还包括：判断模块，其中，
    所述判断模块，配置为根据提取的所述标识值的个数以及接收顺序，判断接收到的所述复帧标识是否正确；
    所述接收模块，还配置为在所述判断模块的判断结果为正确的情况下，根据提取的所述复帧标识，进行复帧数据接收。
  19. 一种通讯设备，其中，包括：处理器和传输装置，其中，
    所述处理器，配置为根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；
    所述传输装置，配置为将复帧发送给接收端，其中，所述复帧携带有所述复帧标识。
  20. 根据权利要求19所述的通讯设备，其中，所述传输装置，还配置为将所述复帧标识的各个标识值，依次携带在组成所述复帧的各个帧的开销块的预设位置，其中，所述标识值的个数与所述复帧数相同。
  21. 根据权利要求19或20所述的通讯设备，其中，所述处理器，还用于配置为根据所述物理层的接口带宽速度，确定所述时隙数量。
  22. 一种通讯设备，包括：处理器和传输装置，其中，
    所述处理器，配置为在接收到的帧上，提取用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；
    所述传输装置，配置为根据提取的所述复帧标识，进行复帧数据接收。
  23. 根据权利要求22所述的通讯设备，其中，
    所述处理器，还配置为在接收到的各个帧的开销块的预设位置上，依次提取用于指示复帧数的复帧标识的标识值，其中，所述标识值的个数与所述复帧数相同。
  24. 根据权利要求23所述的通讯设备，其中，
    所述处理器，还配置为根据提取的所述复帧标识的所述标识值，确定复帧边界；根据确定的所述复帧边界，进行复帧数据接收。
  25. 根据权利要求23或24所述的通讯设备，其中，
    所述处理器，还配置为根据提取的所述标识值的个数以及接收顺序，判断接收到的所述复帧标识是否正确；
    所述传输装置，还配置为在所述处理器的判断结果为正确的情况下，根据提取的所述复帧标识，进行复帧数据接收。
  26. 一种通讯网络系统，包括：第一通讯设备和第二通讯设备，其中，
    所述第一通讯设备，配置为根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；将确定的所述复帧标识，将复帧发送给第二通讯设备，其中，所述复帧携带有所述复帧标识；
    所述第二通讯设备，配置为在接收到的帧上，提取所述复帧标识；根据提取的所述复帧标识，进行所述复帧数据接收。
  27. 根据权利要求26所述的系统，其中，
    所述第一通讯设备，还配置为将所述复帧标识的各个标识值，依次携带在组成所述复帧的各个帧的开销块的预设位置，其中，所述标识值的个数与所述复帧数相同；
    所述第二通讯设备，还配置为在接收到的各个帧的开销块的所述预设位置上，依次提取所述复帧标识的所述标识值。
  28. 根据权利要求26或27所述的系统，其中，所述第二通讯设备，还配置为根据提取的所述复帧标识的标识值的个数以及接收顺序，判断接收到的所述复帧标识是否正确；在判断结果为正确的情况下，根据提取的所述标识值，确定复帧边界；根据确定的所述复帧边界，进行复帧数据接收。
  29. 一种计算机存储介质，所述计算机存储介质存储有计算机可执行代码，所述计算机可执行代码被执行后，能够实现权利要求1至11任一项提供的方法。
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