WO2018121529A1 - 一种数据封装、传输方法、装置和计算机存储介质 - Google Patents

一种数据封装、传输方法、装置和计算机存储介质 Download PDF

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Publication number
WO2018121529A1
WO2018121529A1 PCT/CN2017/118630 CN2017118630W WO2018121529A1 WO 2018121529 A1 WO2018121529 A1 WO 2018121529A1 CN 2017118630 W CN2017118630 W CN 2017118630W WO 2018121529 A1 WO2018121529 A1 WO 2018121529A1
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Prior art keywords
frame
block
byte
cpri
word
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PCT/CN2017/118630
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English (en)
French (fr)
Inventor
李晗
程伟强
王磊
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中国移动通信有限公司研究院
中国移动通信集团公司
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Application filed by 中国移动通信有限公司研究院, 中国移动通信集团公司 filed Critical 中国移动通信有限公司研究院
Priority to JP2019527144A priority Critical patent/JP6893244B2/ja
Priority to US16/474,167 priority patent/US11121811B2/en
Priority to KR1020197015157A priority patent/KR102309444B1/ko
Priority to EP17886562.2A priority patent/EP3550932B1/en
Publication of WO2018121529A1 publication Critical patent/WO2018121529A1/zh

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2656—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1652—Optical Transport Network [OTN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • 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
    • H04L1/0061—Error detection codes
    • H04L1/0063—Single parity check
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0037—Operation
    • H04Q2011/0045—Synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects

Definitions

  • the present invention relates to the field of data transmission technologies, and in particular, to a data encapsulation, transmission method, apparatus, and computer storage medium.
  • a common public radio interface is connected between a baseband processing unit (BBU) and a radio remote unit (RRU), and the CPRI has a corresponding frame structure.
  • the frame corresponding to the CPRI carries data information that the user needs to transmit, and the frame corresponding to the CPRI is often mapped to an Optical Transport Network (OTN) for transmission.
  • OTN Optical Transport Network
  • OTN has designed rich overhead and transmission methods, and designed high-intensity Forward Error Correction (FEC) to ensure long-distance high-quality transmission.
  • FEC Fast Error Correction
  • TCM Tandem Connection Monitoring
  • the frames corresponding to the CPRI are packaged in Time Division Multiplexing (TDM) to form a Hyper Frame of 1/3.84 Mhz.
  • the Hyper Frame contains 256 sub-frames.
  • the first byte combination (word) of each sub-frame is a control word, which is used to carry the control management plane and synchronization information.
  • the remaining 15 words are used to carry user plane data, and the Hyper Frame frame structure. complex.
  • the main application scenario of the frame corresponding to CPRI is point-to-point transmission. The distance is generally within 30 km.
  • the Hyper Frame frame encapsulated by TDM is mapped to the OTN. Because of the complex structure of the Hyper Frame, the complex transmission mechanism and group of OTN.
  • the network mechanism and the long-distance transmission mechanism have low transmission efficiency for the transmission of the Hyper Frame frame, and the transmission delay is not reduced, but the end-to-end transmission delay may be uncontrollable.
  • the embodiment of the present invention provides a data encapsulation, transmission method, device, and computer storage medium, which are used to solve the problem that the structure of the Hyper Frame of the CPRI is complicated, and the transmission efficiency is low and the transmission delay is uncontrollable when mapped to the OTN.
  • an embodiment of the present invention discloses a data encapsulation method, where the data encapsulation method includes:
  • the frame corresponding to the CPRI is encapsulated into a block frame combination by using a Front-haul Transport Network (FTN) encapsulation method, wherein the block frame combination includes at least one block shape.
  • FTN Front-haul Transport Network
  • the frame overhead byte included in each word occupies 1 byte, and the frame payload byte occupies 16 bytes.
  • the block frame includes at least one of the following frame overhead bytes:
  • GCC General Communication Channel
  • BIP Bit Interleaved Parity
  • FEC Forward Error Correction
  • OAM Operation Administration and Maintenance
  • the frame overhead byte frame included in the block frame includes a frame synchronization byte, a GCC byte, a BIP byte, an FEC frame payload byte, an OAM byte, a sync byte, and an FEC frame.
  • An overhead byte and a RES byte wherein a frame overhead byte in the first word to the sixth word in the block frame is a frame synchronization byte; a frame in the seventh word in the block frame
  • the overhead byte is a GCC byte; the frame overhead byte in the eighth word to the tenth word in the block frame is a BIP byte; the eleventh word to the 154th word in the block frame
  • the frame overhead byte is the FEC frame payload byte; the frame overhead byte in the 155th word to the 226th word in the block frame is OAM byte; in the 227th word in the block frame.
  • the frame overhead byte is a sync byte; the frame overhead byte in the 228th word to the 253th word in the block frame is an FEC frame overhead byte; the 254th word to the 256th in the block frame
  • the frame overhead bytes in the word are RES bytes.
  • the FTN encapsulation manner is used to encapsulate the frame corresponding to the CPRI into a block frame combination, including: if the line bit rate of the CPRI of the receiving end is 1Option1, the FTN is adopted. In the encapsulation mode, the frame corresponding to the CPRI is encapsulated into a block frame combination including one block frame. If the line bit rate of the CPRI at the receiving end is 2Option2, the frame corresponding to the CPRI is encapsulated into two blocks.
  • Block frame combination of the frame if the line bit rate of the CPRI of the receiving end is 3Option3, the frame corresponding to the CPRI is encapsulated into a block frame combination including 4 block frames in the FTN encapsulation mode; if the CPRI line of the receiving end is used The bit rate is 4Option 4, and the frame corresponding to the CPRI is encapsulated into a block frame combination including 5 block frames. If the line bit rate of the CPRI at the receiving end is 5Option 5, the FTN encapsulation mode is used to match the CPRI.
  • the frame is encapsulated into a block frame combination including 8 block frames; if the line bit rate of the CPRI at the receiving end is 6Option6, the frame corresponding to the CPRI is encapsulated by the FTN encapsulation method. It is a block frame combination including 10 block frames; if the line bit rate of the CPRI at the receiving end is 7 and 7A Option 7 and 7A, the frame corresponding to the CPRI is encapsulated into blocks including 16 block frames by using FTN encapsulation.
  • Frame combination if the line bit rate of the CPRI of the receiving end is 8Option8, the frame corresponding to the CPRI is encapsulated into a block frame combination including 20 block frames in an FTN encapsulation manner; if the line bit rate of the CPRI at the receiving end is selected In the FTN encapsulation mode, the frame corresponding to the CPRI is encapsulated into a block frame combination including 24 block frames. If the line bit rate of the CPRI at the receiving end is 10Option 10, the frame corresponding to the CPRI is encapsulated by the FTN encapsulation method. A block frame combination including 48 block frames.
  • the embodiment of the invention discloses a data transmission method based on the data encapsulation method, and the data transmission method includes:
  • each data transmission period according to the line bit rate of the CPRI of the at least one receiving end, for each receiving end, the frame corresponding to the CPRI is encapsulated into a block frame combination by using an FTN encapsulation manner, wherein the block frame combination is included
  • each block frame includes 256 words, and each word includes a frame overhead byte and a frame load byte;
  • Each block frame combination is mapped to a corresponding position transmission of the flexible channel according to a preset mapping position of each block frame combination in the transmission period.
  • the embodiment of the invention further discloses a data encapsulating device, the data encapsulating device comprising:
  • a storage module configured to save a line bit rate of the CPRI of the receiving end
  • the encapsulation module is configured to encapsulate the frame corresponding to the CPRI into a block frame combination according to a line bit rate of the CPRI of the receiving end, where the block frame combination includes at least one block frame, each block shape
  • the frame includes 256 words, and each word includes a frame overhead byte and a frame payload byte.
  • the encapsulating module is configured to: if the encapsulated frame frame included in the block frame includes a frame synchronization byte, a GCC byte, a BIP byte, and an FEC frame payload byte, OAM byte, sync byte, FEC frame overhead byte, and RES byte, setting a frame overhead byte in the first word to the sixth word in the block frame as a frame synchronization byte;
  • the frame overhead byte in the 7th word in the block frame is set to GCC byte;
  • the frame overhead byte in the 8th word to the 10th word in the block frame is set to BIP byte;
  • the frame overhead byte in the eleventh word to the 154th word in the block frame is set as the FEC frame load byte;
  • the encapsulating module is configured to encapsulate the frame corresponding to the CPRI into a block frame combination including one block frame if the line bit rate of the CPRI of the receiving end is 1 Option 1 and FTN encapsulation mode;
  • the line bit rate of the CPRI at the receiving end is 2Option2, and the frame corresponding to the CPRI is encapsulated into a block frame combination including two block frames. If the line bit rate of the CPRI at the receiving end is 3Option3, the FTN package is used.
  • the frame corresponding to the CPRI is encapsulated into a block frame combination including four block frames. If the line bit rate of the CPRI at the receiving end is 4Option 4, the frame corresponding to the CPRI is encapsulated into five blocks.
  • the block frame combination of the frame if the line bit rate of the CPRI of the receiving end is 5Option 5, the frame corresponding to the CPRI is encapsulated into a block frame combination including 8 block frames; if the line bit of the CPRI of the receiving end The rate is 6Option6, and the frame corresponding to the CPRI is encapsulated into a block frame combination including 10 block frames in the FTN encapsulation mode; if the line bit rate of the CPRI at the receiving end is 7 and 7A.
  • Option 7 and 7A in the FTN encapsulation mode, encapsulate the frame corresponding to the CPRI into a block frame combination including 16 block frames; if the line bit rate of the CPRI at the receiving end is 8Option8, the frame corresponding to the CPRI is adopted in the FTN encapsulation mode.
  • Encapsulation is a block-like frame combination including 20 block-shaped frames. If the line bit rate of the CPRI of the receiving end is 9Option 9, the frame corresponding to the CPRI is encapsulated into a block-shaped frame combination including 24 block-shaped frames. If the line bit rate of the CPRI of the receiving end is 10Option 10, the frame corresponding to the CPRI is encapsulated into a block frame combination including 48 block frames in an FTN encapsulation manner.
  • the embodiment of the invention further discloses a data transmission device based on the data encapsulating device, the data transmission device comprising:
  • the encapsulating module is configured to, in each data transmission period, encapsulate the frame corresponding to the CPRI into a block frame combination by using an FTN encapsulation manner according to a line bit rate of the CPRI of the at least one receiving end, where the block is configured
  • the frame combination includes at least one block frame, each block frame includes 256 words, and each word includes a frame overhead byte and a frame load byte;
  • the transmission module is configured to map each block frame combination to a corresponding position transmission of the flexible channel according to a preset mapping position of each block frame combination in the transmission period.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the steps of the data encapsulation method of the embodiment of the invention;
  • the computer executable instructions are used to perform the steps of the data transmission method of the embodiment of the present invention.
  • Embodiments of the present invention also provide a data encapsulating apparatus, including: a processor and a memory for storing a computer program executable on a processor, wherein the processor is configured to execute the present invention when the computer program is executed The steps of the data encapsulation method described in the embodiments.
  • An embodiment of the present invention further provides a data transmission apparatus for a data encapsulating apparatus according to an embodiment of the present invention, comprising: a processor and a memory for storing a computer program executable on a processor, wherein the processing When the computer program is executed, the steps of the data transmission method according to the embodiment of the present invention are executed.
  • the embodiment of the invention discloses a data encapsulation, transmission method, device and computer storage medium.
  • the data encapsulation method comprises: encapsulating a frame corresponding to a CPRI into a block shape according to a line bit rate of a CPRI of a receiving end by using an FTN encapsulation method.
  • a frame combination wherein the block frame combination includes at least one block frame, each block frame includes 256 words, and each word includes a frame overhead byte and a frame load byte.
  • the encapsulated block frame combination includes at least one block frame, which can satisfy the encapsulation and transmission of the CPRI at any rate, and the frame of the block frame.
  • each block frame includes 256 words, each word includes frame overhead bytes and frame load bytes, and the encapsulated frame structure is simple, thereby effectively reducing end-to-end transmission delay and improving transmission efficiency. .
  • FIG. 1 is a schematic diagram of a frame structure of a packaged block frame combination according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic diagram of a frame structure of a packaged block frame combination according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic diagram of a frame structure of a packaged block frame combination according to Embodiment 3 of the present invention.
  • FIG. 4 is a schematic diagram of a correspondence between a line bit rate of a CPRI and a block frame and a corresponding rate according to Embodiment 4 of the present invention
  • FIG. 5 is a schematic diagram of a data transmission process according to Embodiment 5 of the present invention.
  • FIG. 6 is a schematic diagram of a process of transmitting a block frame combination in a flexible channel according to an embodiment of the present invention
  • FIG. 7 is a structural diagram of a data encapsulating apparatus according to Embodiment 1 of the present invention.
  • FIG. 8 is a structural diagram of a data transmission apparatus according to Embodiment 5 of the present invention.
  • an embodiment of the present invention provides a data encapsulation, transmission method, apparatus, and computer storage medium.
  • the data encapsulation method includes:
  • the frame corresponding to the CPRI is encapsulated into a block frame combination by using an FTN encapsulation method, wherein the block frame combination includes at least one block frame, and each block frame includes 256 words.
  • Each word includes a frame overhead byte and a frame payload byte.
  • the frame corresponding to the CPRI is encapsulated into a block frame combination by the FTN, where the block frame combination includes at least one block frame, and each block frame includes 256 words, each The word includes a frame overhead byte and a frame payload byte.
  • Each word may include at least one byte (Byte), wherein the frame overhead byte may occupy any byte in the word, and the frame payload byte may occupy any byte in the word.
  • the number of bytes of the frame overhead bytes in each of the 256 words may be the same or different, and the number of bytes of the frame load byte may be the same or different. of.
  • the total number of bytes of the frame overhead byte and the frame payload byte is not greater than the number of bytes included in each word.
  • each line bit rate corresponds to a different CPRI rate.
  • the frame corresponding to the CPRI is encapsulated by the FTN and encapsulated into a block frame combination, and the block frame combination includes at least one block frame.
  • the data content in each block frame is the minimum rate in the CPRI rate is 614.4 Mbps, that is, the line bit rate of the CPRI is the data content of the frame corresponding to the CPRI transmitted by the corresponding CPRI rate when 1 Option 1 is selected.
  • the block frame combination may contain an integer number of block frames.
  • the CPRI of different line bit rates, the frame length and format of the block frame are the same.
  • multiple block frames are used for bearer, so the above package can satisfy the encapsulation and bearer of CPRI at any rate. .
  • FIG. 1 is a schematic diagram of a frame structure of a block-shaped frame combination after data encapsulation according to Embodiment 1 of the present invention.
  • the block frame combination includes two block frames, a block frame 1 and a block.
  • Frame 2 each block frame includes 256 words, and the 256 words are word-0 to word-255.
  • Each word includes N bytes, wherein each word includes a frame overhead byte and a frame payload byte, and the first two bytes of each word are frame overhead bytes. The remaining bytes of each word except the frame overhead byte are frame payload bytes. If the total number of bytes contained in the word is N, the frame load byte in each word is N-2 bytes.
  • the embodiment of the present invention performs FTN encapsulation according to the line bit rate of the CPRI of the receiving end, and the encapsulated block frame combination includes at least one block frame, which can satisfy the encapsulation and transmission of the CPRI at any rate, and the frame length of the block frame.
  • each block frame includes 256 words, each word includes frame overhead bytes and frame load bytes, and the encapsulated frame structure is simple, thereby effectively reducing end-to-end transmission delay and improving transmission efficiency.
  • the frame overhead byte included in each word occupies 1 byte, and the frame load byte occupies 16 bytes. .
  • each word includes a frame overhead byte and a frame load byte, and each word includes at least 17 bytes, wherein the frame overhead byte occupies 1 byte, and the frame load byte occupies 16 bytes.
  • FIG. 2 is a schematic diagram of a frame structure of a block-shaped frame combination after data encapsulation according to Embodiment 2 of the present invention.
  • the block frame combination includes two block-shaped frames, a block-shaped frame 1 and a block.
  • Frame 2 a block frame includes 256 words, and the 256 words are word-0 to word-255.
  • Each word includes 17 bytes, the first byte of the 17 bytes is byte 1 as a frame overhead byte, and the remaining 16 bytes are used as frame payload bytes.
  • the frame overhead byte includes one or more control signalings, and each control signaling corresponds to one frame overhead byte.
  • the block frame includes at least one of the following frame overhead bytes:
  • the frame overhead byte contains multiple control signaling, and each control signaling implements a corresponding control function. Therefore, in order to distinguish each type of control signaling, according to the frame overhead byte
  • the frame overhead bytes may be divided into multiple types, and the frame overhead bytes may include all kinds of frame overhead bytes described above. That is, the frame overhead byte frame included in the block frame includes a frame synchronization byte, a GCC byte, a BIP byte, an FEC frame payload byte, an OAM byte, a synchronization byte, an FEC frame overhead byte, and an RES word. Section. Of course, only one or more of the above frame overhead bytes may be included.
  • FIG. 3 is a schematic diagram of a frame structure of a packaged block frame combination according to Embodiment 3 of the present invention.
  • the block frame in FIG. 3 includes 256 words, and the 256 words are word-0 to word-255.
  • Each word includes 17 bytes, the first byte of the 17 bytes is byte 1 as a frame overhead byte, and the remaining 16 bytes are used as frame payload bytes.
  • the frame overhead bytes included in the block frame include a frame sync byte, a GCC byte, a BIP byte, an FEC frame payload byte, an OAM byte, a sync byte, an FEC frame overhead byte, and a RES byte. among them:
  • the frame overhead byte in the first word to the sixth word, that is, word-0 to word-5 in the block frame is a frame synchronization byte; the seventh word in the block frame is word-6
  • the frame overhead byte in the block frame is GCC byte; the frame overhead byte in the 8th word to the 10th word, ie, word-7 to word-9, in the block frame is BIP byte; the block frame
  • the frame overhead byte in the 11th word to the 154th word, ie, word-10 to word-153, is the FEC frame payload byte;
  • the 155th word to the 226th word in the block frame is word-154
  • the frame overhead byte in word-225 is OAM byte; the frame overhead byte in the 227th word, word-226, in the block frame is a sync byte; the 228th word in the block frame
  • the frame overhead bytes in the 253th word, word-227 to word-252, are FEC frame overhead bytes; the 254th word to the
  • the frame synchronization byte contains 6 bytes, and realizes frame synchronization transmission in the data stream.
  • the GCC byte contains 1 byte, and the management data of the frame corresponding to the CPRI is transmitted.
  • the BIP contains 3 bytes and is referenced to the BIP calculation polynomial of OTN.
  • the FEC byte contains 144 bytes and implements forward error correction coding of the frame load.
  • the OAM byte contains 72 bytes to implement end-to-end OAM guarantee.
  • the OAM frame includes fault monitoring and performance measureme, which can realize comprehensive OAM guarantee.
  • the sync byte contains 1 byte for carrying a time synchronized byte or a frequency synchronized syneronization status marker (ssm) byte.
  • the FEC frame overhead byte contains 26 bytes, and the calculation uses a simple G-FEC to ensure high quality transmission.
  • the RES byte contains 3 bytes for reserved use for the future.
  • each word overhead byte included in the block frame includes a sync byte, a GCC byte, a BIP byte, an FEC frame payload byte, an OAM byte, a sync byte, a FEC frame overhead byte, and a RES byte
  • each word overhead byte can be flexibly set in the block frame. In the embodiment of the present invention, only a specific implementation scheme is given, but in actual use, it can be flexibly set according to requirements, as long as the frame overhead byte and the frame payload byte are included in each word.
  • the line rate of the CPRI at the receiving end is multiple, and each line bit rate corresponds to a different CPRI rate.
  • 4 is a schematic diagram of a correspondence between a line bit rate of a CPRI and a block frame and a corresponding rate according to Embodiment 4 of the present invention; different line rates of CPRI correspond to different numbers of block frames, and different CPRI line bits.
  • the rate corresponds to different payload rates and rates after encapsulation.
  • the payload rate refers to a transmission rate when the frame payload byte is included in the block frame combination
  • the encapsulated rate refers to a transmission rate when the frame overhead frame includes the frame overhead byte and the frame payload byte. .
  • the frame corresponding to the CPRI is encapsulated into a block frame combination by using an FTN encapsulation method, including:
  • the frame corresponding to the CPRI is encapsulated into a block frame combination including one block frame, and the corresponding payload rate is 491.52 Mbps, corresponding to the FTN encapsulation mode.
  • the rate after the encapsulation is 522.24 Mbps.
  • the line bit rate of the CPRI of the current receiving end is 2Option 2
  • the frame corresponding to the CPRI is encapsulated into a block frame combination including two block frames, and the corresponding frame is used.
  • the rate of the payload is 983.04 Mbps, and the corresponding rate after the encapsulation is 1044.48 Mbps.
  • the frame corresponding to the CPRI is encapsulated into 4 blocks.
  • the block frame combination of the frame, the corresponding payload rate is 1966.08 Mbps, and the corresponding encapsulation rate is 2089.96 Mbps; if the line bit rate of the CPRI of the current receiving end is 4Option 4, the FTN encapsulation mode is adopted, and the CPRI is adopted.
  • the corresponding frame is encapsulated into a block frame combination including 5 block frames, and the corresponding payload rate is 2457.6 Mbps, and the corresponding encapsulated rate is 2611.2 Mbps;
  • the line bit rate of the CPRI of the front receiving end is 5Option 5, and the frame corresponding to the CPRI is encapsulated into a block frame combination including 8 block frames, and the corresponding payload rate is 3932.16 Mbps.
  • the encapsulation rate is 4,17.92 Mbps. If the line bit rate of the CPRI of the current receiving end is 6Option 6, the frame corresponding to the CPRI is encapsulated into a block frame combination including 10 block frames.
  • the payload rate is 4915.2 Mbps, and the corresponding encapsulation rate is 5222.4 Mbps. If the line bit rate of the CPRI of the current receiving end is 7 and 7A Option 7 and 7 A, the frame corresponding to the CPRI is encapsulated by the FTN encapsulation method.
  • the block frame combination of 16 block frames, the corresponding payload rate is 7864.32 Mbps, and the corresponding encapsulated rate is 8355.84 Mbps; if the current line end of the CPRI of the receiving end is 8Option 8, the FTN package is adopted.
  • the method includes: the frame corresponding to the CPRI is encapsulated into a block frame combination including 20 block frames, and the corresponding payload rate is 9830.4 Mbps, and the corresponding encapsulated rate is 10444.8 Mbps; If the line bit rate of the CPRI of the current receiving end is 9Option 9, the frame corresponding to the CPRI is encapsulated into a block frame combination including 24 block frames, and the corresponding payload rate is 11796.48 Mbps, corresponding to The rate after the encapsulation is 12533.76 Mbps. If the line bit rate of the CPRI of the current receiving end is 10Option 10, the frame corresponding to the CPRI is encapsulated into a block frame combination including 48 block frames, and the corresponding frame is used. The payload rate is 23592.96 Mbps, and the corresponding encapsulation rate is 25067.52 Mbps. If other new CPRI line bit rate selections are followed, the same mapping method is used to map it to the corresponding block frame combination. in.
  • the block frame combination may contain an integer number of block frames.
  • the CPRI of different line bit rates, the frame length and format of the block frame are the same.
  • multiple block frames are used for bearer, so the above package can satisfy the encapsulation and bearer of CPRI at any rate. .
  • FIG. 5 is a schematic diagram of a data transmission process according to Embodiment 5 of the present invention, where the process includes the following steps:
  • each data transmission period according to the line bit rate of the CPRI of the at least one receiving end, for each receiving end, the frame corresponding to the CPRI is encapsulated into a block frame combination by using an FTN encapsulation manner, wherein the block frame combination
  • the method includes at least one block frame, each block frame includes 256 words, and each word includes a frame overhead byte and a frame load byte.
  • the data transmission method when there is only one receiving end, the data transmission method may be end-to-end transmission. When there are multiple receiving ends, the data transmission method may be end-to-end transmission.
  • the receiving end can transmit data to the receiving end, where the transmitting end stores the line bit rate of the CPRI of each receiving end and the period of transmitting data to the receiving end.
  • the length of each transmission cycle is determined according to the number of receiving ends and the amount of data transmitted with each receiving end in each cycle.
  • the transmission durations assigned by different receivers in each transmission cycle are the same or different.
  • the frame corresponding to the CPRI that needs to be transmitted may be FTN-encapsulated for the line bit rate of the CPRI of the receiving end to obtain a packaged block-like frame combination, where the block-shaped frame combination includes at least A block frame, each block frame includes 256 words, and each word includes a frame overhead byte and a frame load byte. That is to say, for each receiving end, a block frame combination corresponding to the receiving end is encapsulated.
  • the frame corresponding to the CPRI is encapsulated into a block frame combination including one block frame. If the line bit rate of the CPRI of the current receiving end is 2Option2, In the FTN encapsulation mode, the frame corresponding to the CPRI is encapsulated into a block-like frame combination including two block-shaped frames. If the line bit rate of the CPRI at the receiving end is 3Option 3, the frame corresponding to the CPRI is encapsulated into four.
  • the corresponding frame is encapsulated into a block frame combination including 10 block frames; if the line bit rate of the CPRI at the receiving end is 7 and 7A Option 7 and 7A, the FTN encapsulation mode is adopted, and the CP is used.
  • the frame corresponding to the RI is a block frame combination including 16 block frames. If the line bit rate of the CPRI at the receiving end is 8Option8, the frame corresponding to the CPRI is encapsulated into a block including 20 block frames.
  • the frame corresponding to the CPRI is encapsulated into a block frame combination including 24 block frames; if the line bit rate of the CPRI at the receiving end is selected 10Option10, in the FTN encapsulation mode, encapsulates the frame corresponding to the CPRI into a block frame combination including 48 block-shaped frames.
  • the payload rate refers to a transmission rate when only a frame load byte is included in the block frame combination
  • the encapsulated rate refers to a frame frame combination including a frame overhead byte and a frame load byte. Transmission rate.
  • S102 Map each block frame combination to a corresponding location of a flexible channel according to a preset mapping position of each block frame combination in a transmission period.
  • mapping position of each block frame combination in the data transmission period is stored in the sending end, and after the block frame combination corresponding to the receiving end is obtained for each receiving end, according to the mapping position of each block frame combination saved in advance, Each block frame combination is mapped to a corresponding location transmission of the flexible channel.
  • the mapping position when the transmitting end and the receiving end perform data transmission in each time period are the same.
  • the flexible channel can also transmit a block frame in a TDM package and a block frame of an Ethernet signal.
  • FIG. 6 is a schematic diagram of a transmission process of a block frame combination in a flexible channel.
  • Each flexible channel is a physical channel.
  • the transmitting end transmits data to three receiving ends, and
  • FIG. 6 specifically provides A schematic diagram of a data transmission process in the Nth transmission period, wherein the nth transmission period is any one of the transmission periods in the transmission process, and the transmission condition of each transmission period is the same as the data transmission process of the nth transmission period.
  • the transmitting end transmits data to the three receiving ends.
  • the line bit rate of the CPRI of the receiving end is 2Option2
  • the frame corresponding to the CPRI is encapsulated by using the FTN encapsulation method. It is a block frame combination including 2 block frames.
  • selecting 8Option8 according to the line bit rate of the CPRI for the second receiving end, and using the FTN encapsulation method the frame corresponding to the CPRI is encapsulated into a block frame combination, wherein the block shape
  • the block combination includes 20 block frames.
  • the frame combination includes 4 block frames.
  • each block frame combination is mapped to a corresponding position of the flexible channel, and after mapping, as shown in FIG. 6, the mapped transmission period includes A block frame combination having 2 block frames, a block frame combination including 20 block frames, and a block frame combination including 4 block frames.
  • corresponding resources can also be reserved in each transmission cycle to meet the data transmission requirements when an unexpected situation occurs.
  • the block frame combination sent to itself is acquired in each transmission period according to a preset mapping position of each block frame combination in the transmission period.
  • the data transmission network architecture corresponding to the data transmission process provided by the embodiment of the present invention may include multiple Flex Tunnels.
  • the construction of the Flex Tunnel is completed by a multi-layer controller (controller) through centralized calculation and configuration, and the calculation includes each For the number and time slot of a specific Flex Tunnel, the configuration of the Flex tunnel of two interconnected nodes is realized through a centralized calculation.
  • FIG. 7 is a structural diagram of a data encapsulating apparatus according to Embodiment 1 of the present invention, where the apparatus includes:
  • the storage module 71 is configured to save a line bit rate of the CPRI of the receiving end;
  • the encapsulation module 72 is configured to encapsulate the frame corresponding to the CPRI into a block frame combination according to a line bit rate of the CPRI of the receiving end, where the block frame combination includes at least one block frame, and each of the block frame combinations includes at least one block frame.
  • the block frame includes 256 words, and each word includes a frame overhead byte and a frame load byte.
  • the encapsulating module 72 is configured to: if the encapsulated frame frame included in the block frame includes a sync byte, a GCC byte, a BIP byte, an FEC frame load byte, an OAM byte, a sync word a section, an FEC frame overhead byte, and a RES byte, setting a frame overhead byte in the first word to the sixth word in the block frame as a frame synchronization byte; and 7th in the block frame
  • the frame overhead bytes in the word are set to GCC bytes; the frame overhead bytes in the 8th word to the 10th word in the block frame are set to BIP bytes;
  • the frame overhead byte in the 11 word to the 154th word is set to the FEC frame load byte; the frame overhead byte in the 155th word to the 226th word in the block frame is set to the OAM byte; Setting a frame overhead byte in the 227th word in the block frame as a synchronization byte; setting a
  • the encapsulation module 72 is configured to: if the line bit rate of the CPRI of the receiving end is 1 Option 1, select the frame corresponding to the CPRI as a block frame combination including 1 block frame; if the CPRI line of the receiving end The bit rate is 2Option 2, and the frame corresponding to the CPRI is encapsulated into a block frame combination including 2 block frames. If the line bit rate of the CPRI at the receiving end is 3Option 3, the FTN encapsulation mode is adopted, and the CPRI is correspondingly The frame is encapsulated into a block frame combination including four block frames.
  • the frame corresponding to the CPRI is encapsulated into a block frame including 5 block frames in an FTN encapsulation manner. If the line bit rate of the CPRI of the receiving end is 5Option 5, the frame corresponding to the CPRI is encapsulated into a block frame combination including 8 block frames.
  • the frame corresponding to the CPRI is encapsulated into a block frame combination including 10 block frames; if the line bit rate of the CPRI at the receiving end is 7 and 7A Option 7 and 7A, In the FTN encapsulation mode, the frame corresponding to the CPRI is encapsulated into a block frame combination including 16 block-shaped frames. If the line bit rate of the CPRI at the receiving end is 8Option8, the frame corresponding to the CPRI is encapsulated to include 20 in the FTN encapsulation mode.
  • the data encapsulation device provided by the foregoing embodiment performs data encapsulation
  • only the division of each of the foregoing program modules is illustrated.
  • the processing allocation may be completed by different program modules as needed.
  • the internal structure of the device is divided into different program modules to complete all or part of the processing described above.
  • the data encapsulation device and the data encapsulation method embodiment provided in the foregoing embodiments are in the same concept, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.
  • An embodiment of the present invention further provides a data encapsulating apparatus, including: a processor and a memory for storing a computer program capable of running on a processor, wherein when the processor is configured to run the computer program, performing: according to The line bit rate of the CPRI of the receiving end is encapsulated into a block frame combination by the FTN encapsulation mode, wherein the block frame combination includes at least one block frame, and each block frame includes 256 bytes. Combine word, each word includes frame overhead bytes and frame load bytes.
  • the processor when the processor is configured to run the computer program, performing: if the frame overhead byte frame included in the encapsulated frame frame includes a frame synchronization byte, a GCC byte, a BIP byte , FEC frame load byte, OAM byte, sync byte, FEC frame overhead byte, and RES byte, setting the frame overhead byte in the first word to the sixth word in the block frame to a frame a sync byte; setting a frame overhead byte in the 7th word in the block frame to a GCC byte; setting a frame overhead byte in the 8th word to the 10th word in the block frame a BIP byte; setting a frame overhead byte in the 11th word to the 154th word in the block frame to an FEC frame load byte; and placing the 155th word to the 226th in the block frame
  • the frame overhead byte in word is set to OAM byte; the frame overhead byte in the 227th word in the block frame is set as a synchron
  • the processor when the processor is configured to run the computer program, if the line bit rate of the CPRI of the receiving end is 1 Option 1, the frame corresponding to the CPRI is encapsulated into a block frame by using an FTN encapsulation mode. If the line bit rate of the CPRI of the receiving end is 2Option2, the frame corresponding to the CPRI is encapsulated into a block frame combination including 2 block frames; if the line bit rate of the CPRI at the receiving end In order to select 3Option3, the frame corresponding to the CPRI is encapsulated into a block frame combination including four block frames. If the line bit rate of the CPRI at the receiving end is 4Option 4, the frame corresponding to the CPRI is adopted in the FTN encapsulation mode.
  • Encapsulation is a block-shaped frame combination including 5 block-shaped frames; if the line bit rate of the CPRI of the receiving end is 5Option 5, the frame corresponding to the CPRI is encapsulated into a block-shaped frame combination including 8 block-shaped frames by using an FTN encapsulation method; If the line bit rate of the CPRI of the receiving end is 6Option6, the frame corresponding to the CPRI is encapsulated into a block frame combination including 10 block frames in an FTN encapsulation manner; if the CPR of the receiving end is used The line bit rate of I is selected as 7 and 7A Option 7 and 7A, and the frame corresponding to CPRI is encapsulated into a block frame combination including 16 block frames in an FTN encapsulation manner; if the line bit rate of the CPRI at the receiving end is 8Option8, In the FTN encapsulation mode, the frame corresponding to the CPRI is encapsulated into a block frame combination including 20 block-shaped frames.
  • the frame corresponding to the CPRI is encapsulated to include 24 in the FTN encapsulation mode.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute: according to a line bit rate of a CPRI of the receiving end, adopting an FTN encapsulation mode, Encapsulating a frame corresponding to the CPRI into a block frame combination, where the block frame combination includes at least one block frame, each block frame includes a 256 byte combination word, and each word includes a frame overhead byte and Frame load byte.
  • the computer executable instructions are configured to: if the frame overhead byte frame included in the encapsulated block frame includes a frame synchronization byte, a GCC byte, a BIP byte, and an FEC frame load a byte, an OAM byte, a sync byte, an FEC frame overhead byte, and a RES byte, and setting a frame overhead byte in the first word to the sixth word in the block frame as a frame sync byte; Setting a frame overhead byte in the 7th word in the block frame to a GCC byte; setting a frame overhead byte in the 8th word to the 10th word in the block frame to a BIP byte Setting a frame overhead byte in the eleventh word to the 154th word in the block frame to an FEC frame load byte; and a frame in the 155th word to the 226th word in the block frame
  • the overhead byte is set to an OAM byte; the frame overhead byte in the 227th word in the block frame is
  • the computer executable instructions are configured to: if the line bit rate of the CPRI of the receiving end is 1Option1, encapsulate the frame corresponding to the CPRI into a block frame including 1 block frame by using an FTN encapsulation manner. If the line bit rate of the CPRI of the receiving end is 2Option 2, the frame corresponding to the CPRI is encapsulated into a block frame combination including 2 block frames; if the line bit rate of the CPRI of the receiving end is 3Option 3, In the FTN encapsulation mode, the frame corresponding to the CPRI is encapsulated into a block-like frame combination including four block-shaped frames.
  • the frame corresponding to the CPRI is encapsulated into 5 by using the FTN encapsulation mode.
  • the line bit rate is 6Option6, and the frame corresponding to the CPRI is encapsulated into a block frame combination including 10 block frames in an FTN encapsulation manner; if the line bit rate of the CPRI at the receiving end is Select 7 and 7A Option 7 and 7A, and use FTN encapsulation to encapsulate the frame corresponding to CPRI into a block frame combination including 16 block frames.
  • the FTN encapsulation mode will be adopted.
  • the frame corresponding to the CPRI is a block frame combination including 20 block frames. If the line bit rate of the CPRI at the receiving end is 9Option 9, the frame corresponding to the CPRI is encapsulated into blocks including 24 block frames. If the line bit rate of the CPRI of the receiving end is 10Option 10, the frame corresponding to the CPRI is encapsulated into a block frame combination including 48 block frames.
  • FIG. 8 is a structural diagram of a data transmission apparatus according to Embodiment 5 of the present invention, where the apparatus includes:
  • the encapsulation module 81 is configured to, in each data transmission period, encapsulate the frame corresponding to the CPRI into a block frame combination according to a line bit rate of the general CPRI of the at least one receiving end, and adopt an FTN encapsulation manner for each receiving end.
  • the block frame combination includes at least one block frame, each block frame includes 256 words, and each word includes a frame overhead byte and a frame load byte;
  • the transmission module 82 is configured to transmit each block frame combination in a flexible channel according to the sequence in which the data transmission is performed with each receiving end in a transmission period.
  • An embodiment of the present invention further provides a data transmission apparatus, including: a processor and a memory for storing a computer program executable on a processor, wherein the processor is configured to execute the computer program: For each data transmission period, according to the line bit rate of the CPRI of the at least one receiving end, for each receiving end, the frame corresponding to the CPRI is encapsulated into a block frame combination by using an FTN encapsulation manner, wherein the block frame combination includes At least one block frame, each block frame includes a 256-byte combination word, each word includes a frame overhead byte and a frame load byte; according to a preset mapping position of each block frame combination in a transmission period Each block frame combination is mapped to a corresponding location transmission of the flexible channel.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions for performing: according to at least one receiving end of the CPRI in each data transmission period
  • the line bit rate is encapsulated into a block frame combination by the FTN encapsulation mode, where the block frame combination includes at least one block frame, and each block frame includes 256. a byte combination word, each word including a frame overhead byte and a frame load byte; mapping each block frame combination to a flexible channel according to a preset mapping position of each block frame combination in a transmission cycle Corresponding location transfer.
  • the FTN encapsulation is performed according to the line bit rate of the CPRI of the receiving end, and the encapsulated block frame combination includes at least one block frame, so that the CPRI encapsulation and transmission of any rate can be satisfied, and the frame length of the block frame is Fixed, each block frame includes 256 words, each word includes frame overhead bytes and frame load bytes, and the encapsulated frame structure is simple, thereby effectively reducing end-to-end transmission delay and improving transmission efficiency.
  • the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.
  • embodiments of the present application can be provided as a method, apparatus, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, a fully applied embodiment, or a combination of application and hardware aspects.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the technical solution of the embodiment of the present invention performs FTN encapsulation according to the line bit rate of the CPRI of the current receiving end, and the encapsulated block frame combination includes at least one block frame, which can satisfy the encapsulation and transmission of the CPRI at any rate, and the block frame
  • the frame length is fixed.
  • Each block frame includes 256 words.
  • Each word includes a frame overhead byte and a frame load byte.
  • the encapsulated frame structure is simple, thereby effectively reducing end-to-end transmission delay and improving. Transmission efficiency.

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Abstract

本发明实施例公开了一种数据封装、传输方法、装置和计算机存储介质。该数据封装方法包括：根据接收端的CPRI的线比特率，采用FTN封装方式，将CPRI对应的帧封装为包括至少一个块状帧的块状帧组合，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节。

Description

一种数据封装、传输方法、装置和计算机存储介质
相关申请的交叉引用
本申请基于申请号为201611229086.0、申请日为2016年12月27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以引入方式并入本申请。
技术领域
本发明涉及数据传输技术领域，特别涉及一种数据封装、传输方法、装置和计算机存储介质。
背景技术
目前，室内基带单元(Baseband Processing Unit，BBU)和射频拉远单元(Radio Remote Unit，RRU)之间主要采用通用公共无线接口(Common Public Radio Interface，CPRI)连接，CPRI有其对应的帧结构，该CPRI对应的帧中携带有用户需要传输的数据信息，该CPRI对应的帧经常被映射至光传输网(Optical Transport Network，OTN)中进行传输。OTN为了适应各种客户业务，如：SDH、Ethernet、FC等，设计了丰富的开销及传输方式，另外为了保障长距离高质量传输设计了诸如高强度的前向纠错(Forward Error Correction，FEC)和多级串联监控(Multiple levels of Tandem Connection Monitoring，TCM)等。
CPRI对应的帧经过时分复用(Time Division Multiplexing，TDM)封装，组成1/3.84Mhz为周期的超高帧(Hyper Frame)。Hyper Frame包含256个子帧，每个子帧的第1个字节组合(word)为控制字，用来承载控制管理平面和同步信息，剩余的15个word用来承载用户平面数据，Hyper Frame 帧结构复杂。CPRI对应的帧主要的应用场景是点对点传输，距离一般在三十公里以内，经过TDM封装后的Hyper Frame帧被映射至OTN的中传输，因为Hyper Frame帧结构复杂，OTN的复杂传输机制、组网机制、长距离的传输机制，对于Hyper Frame帧的传输来说，传输效率较低，并未减少传输时延，反而有可能导致端到端的传输时延不可控。
发明内容
本发明实施例提供一种数据封装、传输方法、装置和计算机存储介质，用以解决CPRI的Hyper Frame帧结构复杂，映射至OTN中传输时，传输效率低，传输时延不可控的问题。
为达到上述目的，本发明实施例公开了一种数据封装方法，所述数据封装方法包括：
根据接收端的CPRI的线比特率，采用前传传输网络(Front-haul Transport Network，FTN)封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节。
在一实施例中，所述每个word中包括的帧开销字节占用1个字节，帧负荷字节占用16个字节。
在一实施例中，所述块状帧中包括以下至少一种帧开销字节：
帧同步字节、一般通信通道(General Communication Channel，GCC)字节、比特间插奇偶校验(Bit Interleaved Parity，BIP)字节、前向纠错(Forward Error Correction，FEC)帧负荷字节、操作管理和维护(Operation Administration and Maintenance，OAM)字节、同步字节、FEC帧开销字节和预留(Reserved，RES)字节。
在一实施例中，如果所述块状帧中包括的帧开销字节帧包含帧同步字节、GCC字节、BIP字节、FEC帧负荷字节、OAM字节、同步字节、FEC 帧开销字节和RES字节，其中，所述块状帧中第1个word至第6个word中的帧开销字节为帧同步字节；所述块状帧中第7个word中的帧开销字节为GCC字节；所述块状帧中第8个word至第10个word中的帧开销字节为BIP字节；所述块状帧中第11个word至第154个word中的帧开销字节为FEC帧负荷字节；所述块状帧中第155个word至第226个word中的帧开销字节为OAM字节；所述块状帧中第227个word中的帧开销字节为同步字节；所述块状帧中第228个word至第253个word中的帧开销字节为FEC帧开销字节；所述块状帧中第254个word至第256个word中的帧开销字节为RES字节。
在一实施例中，所述根据当前接收端的CPRI的线比特率，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合包括：如果接收端的CPRI的线比特率为选择1Option1，采用FTN封装方式，将CPRI对应的帧封装为包括1个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择2Option2，采用FTN封装方式，将CPRI对应的帧封装为包括2个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择3Option3，采用FTN封装方式，将CPRI对应的帧封装为包括4个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择4Option4，采用FTN封装方式，将CPRI对应的帧封装为包括5个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择5Option5，采用FTN封装方式，将CPRI对应的帧封装为包括8个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择6Option6，采用FTN封装方式，将CPRI对应的帧封装为包括10个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择7和7A Option7和7A，采用FTN封装方式，将CPRI对应的帧封装为包括16个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择8Option8，采用FTN封装方式，将CPRI对应的帧封装为包括20个块状帧的块状帧组合；如果接收端的CPRI的线 比特率为选择9Option9，采用FTN封装方式，将CPRI对应的帧封装为包括24个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择10Option10，采用FTN封装方式，将CPRI对应的帧封装为包括48个块状帧的块状帧组合。
本发明实施例公开了一种基于所述数据封装方法的数据传输方法，所述数据传输方法包括：
在每个数据传输周期，根据至少一个接收端的CPRI的线比特率，针对每个接收端，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节；
按照预设的在传输周期中各块状帧组合的映射位置，将每个块状帧组合映射到灵活信道的对应位置传输。
本发明实施例还公开了一种数据封装装置，所述数据封装装置包括：
存储模块，配置为保存接收端的CPRI的线比特率；
封装模块，配置为根据接收端的CPRI的线比特率，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节。
在一实施例中，所述封装模块，配置为如果封装后的所述块状帧中包括的帧开销字节帧包含帧同步字节、GCC字节、BIP字节、FEC帧负荷字节、OAM字节、同步字节、FEC帧开销字节和RES字节，将所述块状帧中第1个word至第6个word中的帧开销字节设置为帧同步字节；将所述块状帧中第7个word中的帧开销字节设置为GCC字节；将所述块状帧中第8个word至第10个word中的帧开销字节设置为BIP字节；将所述块状帧中第11个word至第154个word中的帧开销字节设置为FEC帧负荷字 节；将所述块状帧中第155个word至第226个word中的帧开销字节设置为OAM字节；将所述块状帧中第227个word中的帧开销字节设置为同步字节；将所述块状帧中第228个word至第253个word中的帧开销字节设置为FEC帧开销字节；将所述块状帧中第254个word至第256个word中的帧开销字节设置为RES字节。
在一实施例中，所述封装模块，配置为如果接收端的CPRI的线比特率为选择1Option1，采用FTN封装方式，将CPRI对应的帧封装为包括1个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择2Option2，采用FTN封装方式，将CPRI对应的帧封装为包括2个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择3Option3，采用FTN封装方式，将CPRI对应的帧封装为包括4个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择4Option4，采用FTN封装方式，将CPRI对应的帧封装为包括5个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择5Option5，采用FTN封装方式，将CPRI对应的帧封装为包括8个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择6Option6，采用FTN封装方式，将CPRI对应的帧封装为包括10个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择7和7A Option7和7A，采用FTN封装方式，将CPRI对应的帧封装为包括16个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择8Option8，采用FTN封装方式，将CPRI对应的帧封装为包括20个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择9Option9，采用FTN封装方式，将CPRI对应的帧封装为包括24个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择10Option10，采用FTN封装方式，将CPRI对应的帧封装为包括48个块状帧的块状帧组合。
本发明实施例还公开了一种基于所述数据封装装置的数据传输装置， 所述数据传输装置包括：
封装模块，配置为在每个数据传输周期，根据至少一个接收端的CPRI的线比特率，针对每个接收端，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节；
传输模块，配置为按照预设的在传输周期中各块状帧组合的映射位置，将每个块状帧组合映射到灵活信道的对应位置传输。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述数据封装方法的步骤；
或者，所述计算机可执行指令用于执行本发明实施例所述数据传输方法的步骤。
本发明实施例还提供了一种数据封装装置，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行本发明实施例所述数据封装方法的步骤。
本发明实施例还提供了一种基于本发明实施例所述的数据封装装置的数据传输装置，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行本发明实施例所述数据传输方法的步骤。
本发明实施例公开了一种数据封装、传输方法、装置和计算机存储介质，所述数据封装方法包括：根据接收端的CPRI的线比特率，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节。由于本发明实施例根据当前接收端的CPRI的线比特率进行FTN封装，封装后的块状帧组合中包含至少一个块状帧，可以满足任 何速率的CPRI的封装和传输，并且块状帧的帧长固定，每个块状帧包括256个word，每个word包括帧开销字节和帧负荷字节，该封装后的帧结构简单，从而有效的降低端到端的传输时延，提高了传输效率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例1提供的一种封装后的块状帧组合的帧结构示意图；
图2为本发明实施例2提供的一种封装后的块状帧组合的帧结构示意图；
图3为本发明实施例3提供的一种封装后的块状帧组合的帧结构示意图；
图4为本发明实施例4提供的一种CPRI的线比特率与块状帧的对应关系及对应速率示意图；
图5为本发明实施例5提供的一种数据传输过程示意图；
图6为本发明实施例提供的一种块状帧组合在灵活信道中传输过程示意图；
图7为本发明实施例1提供的一种数据封装装置结构图；
图8为本发明实施例5提供的一种数据传输装置结构图。
具体实施方式
为了减小端到端的传输时延，提高传输效率，本发明实施例提供了一 种数据封装、传输方法、装置和计算机存储介质。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
为了减小传输时延，简化了数据封装后的帧结构，在本发明实施例中，该数据封装方法包括：
根据接收端的CPRI的线比特率，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节。
在本发明实施例中，将CPRI对应的帧经过FTN封装，封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节。每个word中可以包括至少一个字节(Byte)，其中帧开销字节可以占用该word中的任意字节，帧负荷字节可以占用该word中的任意字节。所述256个word中的每个word中的帧开销字节的字节数是可以相同的，也可以是不同的，所述帧负荷字节的字节数可以是相同的，也可以是不同的。所述帧开销字节和帧负荷字节总的字节数不大于所述每个word包括的字节数。
另外，因为接收端的CPRI的线比特率为多种，每个线比特率对应不同的CPRI速率。线比特率越高，对应的CPRI速率越高，则传输的CPRI对应的帧的数据内容就会越多。将CPRI对应的帧经过FTN封装，封装为块状帧组合，所述块状帧组合中包括至少一个块状帧。每个块状帧中的数据内容为CPRI速率中的最小速率为614.4Mbps，即该CPRI的线比特率为选 择1Option1时，对应的CPRI速率传输的CPRI对应的帧的数据内容。如果CPRI的线比特率比较高，则块状帧组合中可以包含整数个块状帧。不同线比特率的CPRI，块状帧的帧长和格式是相同的，对于线比特率高速度快的CPRI采用多个块状帧来承载，所以上述封装能够满足任意速率的CPRI的封装和承载。
图1为本发明实施例1提供的一种数据封装后的块状帧组合的帧结构示意图，如图1所示，所述块状帧组合包括两个块状帧，块状帧1和块状帧2，每个块状帧包括256个word，该256个word为word-0至word-255。每个word包括N个字节，其中，每个word包括帧开销字节和帧负荷字节，每个word的前两个字节为帧开销字节。每个word除了帧开销字节剩余的字节为帧负荷字节，如果word中包含的总的字节数为N，则每个word中帧负荷字节为N-2个字节。
由于本发明实施例根据接收端的CPRI的线比特率进行FTN封装，封装后的块状帧组合中包含至少一个块状帧，可以满足任何速率的CPRI的封装和传输，并且块状帧的帧长固定，每个块状帧包括256个word，每个word包括帧开销字节和帧负荷字节，该封装后的帧结构简单，从而有效的降低端到端的传输时延，提高了传输效率。
实施2
为了使封装后的块状帧组合的帧结构更加简单，在上述实施例的基础上，所述每个word中包括的帧开销字节占用1个字节，帧负荷字节占用16个字节。
在本发明实施例，所述每个word中包括帧开销字节和帧负荷字节，每个word包括至少17个字节，其中，帧开销字节占用1个字节，帧负荷字节占用16个字节。
图2为本发明实施例2提供的一种数据封装后的块状帧组合的帧结构 示意图，如图2所示，块状帧组合中包括两个块状帧，块状帧1和块状帧2，一个块状帧中包括256个word，该256个word为word-0至word-255。所述每个word包括17个字节，所述17个字节中的第一个字节即字节1作为帧开销字节，剩余的16个字节作为帧负荷字节。
实施例3
帧开销字节中包含一种或多种控制信令，每一种控制信令对应一种帧开销字节。在上述各实施例的基础上，在本发明实施例中，所述块状帧中包括以下至少一种帧开销字节：
帧同步字节、GCC字节、BIP字节、FEC帧负荷字节、OAM字节、同步字节、FEC帧开销字节和RES字节。
为了保证数据传输的准确性、可靠性，帧开销字节中包含多种控制信令，每种控制信令实现对应的控制功能，因此为了对每种控制信令进行区分，根据帧开销字节中包含的控制信令的不同，则可以将帧开销字节划分为多种，所述帧开销字节可以包括上述所有种类的帧开销字节。即所述块状帧中包括的帧开销字节帧包含帧同步字节、GCC字节、BIP字节、FEC帧负荷字节、OAM字节、同步字节、FEC帧开销字节和RES字节。当然也可以只包括上述一种或一种以上的帧开销字节。
图3为本发明实施例3提供的一种封装后的块状帧组合的帧结构示意图，该图3中的块状帧包括256个word，该256个word为word-0至word-255。所述每个word包括17个字节，所述17个字节中的第一个字节即字节1作为帧开销字节，剩余的16个字节作为帧负荷字节。
所述块状帧中包括的帧开销字节包含帧同步字节、GCC字节、BIP字节、FEC帧负荷字节、OAM字节、同步字节、FEC帧开销字节和RES字节，其中：
所述块状帧中第1个word至第6个word、即word-0至word-5中的帧 开销字节为帧同步字节；所述块状帧中第7个word即word-6中的帧开销字节为GCC字节；所述块状帧中第8个word至第10个word即word-7至word-9中的帧开销字节为BIP字节；所述块状帧中第11个word至第154个word即word-10至word-153中的帧开销字节为FEC帧负荷字节；所述块状帧中第155个word至第226个word即word-154至word-225中的帧开销字节为OAM字节；所述块状帧中第227个word即word-226中的帧开销字节为同步字节；所述块状帧中第228个word至第253个word即word-227至word-252中的帧开销字节为FEC帧开销字节；所述块状帧中第254个word至第256个word即word-253至word-255中的帧开销字节为RES字节。
在数据传输过程中，所述帧同步字节包含6个字节，实现数据流中的帧同步传输。
所述GCC字节包含1个字节，实现CPRI对应的帧的管理数据的传输。所述BIP包含3个字节，参考OTN的BIP计算多项式。
所述FEC字节包含144个字节，实现帧负荷的前向纠错编码。
所述OAM字节包含72个字节，实现端到端的OAM保证，OAM帧中包含故障监控(fault monitoring)及工作指标(performance measureme)，能够实现全面的OAM保障。
所述同步字节包含1个字节，用于承载时间同步的字节或者频率同步的同步状态标志(synehronization status marker，ssm)字节。
所述FEC帧开销字节包含26个字节，计算采用简单的G-FEC，保证传输高质量
所述RES字节包含3个字节，用于为未来预留使用。
当块状帧中包括的帧开销字节包含同步字节、GCC字节、BIP字节、FEC帧负荷字节、OAM字节、同步字节、FEC帧开销字节和RES字节时， 每种帧开销字节在块状帧中占用的word数量可以根据需要进行灵活设置，并且每种帧开销字节在块状帧占用哪些word也可以灵活设置。在本发明实施例中只是给出了一种具体的实现方案，但在实际使用时，可以根据需要灵活设置，只要在每个word中包含帧开销字节和帧负荷字节即可。
实施例4
接收端的CPRI的线比特率为多种，每个线比特率对应不同的CPRI速率。线比特率越高，对应的CPRI速率越高，则传输的CPRI对应的帧的数据内容就会越多。图4为本发明实施例4提供的一种CPRI的线比特率与块状帧的对应关系及对应速率示意图；不同的CPRI的线比特率对应不同数量的块状帧，不同的CPRI的线比特率对应不同净荷速率和封装后的速率。所述净荷速率是指块状帧组合中只包括帧负荷字节时的传输速率，所述封装后的速率是指块状帧组合中包括帧开销字节和帧负荷字节时的传输速率。
所述根据接收端的CPRI的线比特率，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合包括：
如果当前接收端的CPRI的线比特率为选择1Option1，采用FTN封装方式，将CPRI对应的帧封装为包括1个块状帧的块状帧组合，对应的所述净荷速率为491.52Mbps，对应的所述封装后的速率为522.24Mbps；如果当前接收端的CPRI的线比特率为选择2Option2，采用FTN封装方式，将CPRI对应的帧封装为包括2个块状帧的块状帧组合，对应的所述净荷速率为983.04Mbps，对应的所述封装后的速率为1044.48Mbps；如果当前接收端的CPRI的线比特率为选择3Option3，采用FTN封装方式，将CPRI对应的帧封装为包括4个块状帧的块状帧组合，对应的所述净荷速率为1966.08Mbps，对应的所述封装后的速率为2088.96Mbps；如果当前接收端的CPRI的线比特率为选择4Option4，采用FTN封装方式，将CPRI对应的帧封装为包括5个块状帧的块状帧组合，对应的所述净荷速率为 2457.6Mbps，对应的所述封装后的速率为2611.2Mbps；如果当前接收端的CPRI的线比特率为选择5Option5，采用FTN封装方式，将CPRI对应的帧封装为包括8个块状帧的块状帧组合，对应的所述净荷速率为3932.16Mbps，对应的所述封装后的速率为4177.92Mbps；如果当前接收端的CPRI的线比特率为选择6Option6，采用FTN封装方式，将CPRI对应的帧封装为包括10个块状帧的块状帧组合，对应的所述净荷速率为4915.2Mbps，对应的所述封装后的速率为5222.4Mbps；如果当前接收端的CPRI的线比特率为选择7和7A Option7和7A，采用FTN封装方式，将CPRI对应的帧封装为包括16个块状帧的块状帧组合，对应的所述净荷速率为7864.32Mbps，对应的所述封装后的速率为8355.84Mbps；如果当前接收端的CPRI的线比特率为选择8Option8，采用FTN封装方式，将CPRI对应的帧封装为包括20个块状帧的块状帧组合，对应的所述净荷速率为9830.4Mbps，对应的所述封装后的速率为10444.8Mbps；如果当前接收端的CPRI的线比特率为选择9Option9，采用FTN封装方式，将CPRI对应的帧封装为包括24个块状帧的块状帧组合，对应的所述净荷速率为11796.48Mbps，对应的所述封装后的速率为12533.76Mbps；如果当前接收端的CPRI的线比特率为选择10Option10，采用FTN封装方式，将CPRI对应的帧封装为包括48个块状帧的块状帧组合，对应的所述净荷速率为23592.96Mbps，对应的所述封装后的速率为25067.52Mbps；若后续有其他新的CPRI的线比特率选择，也采用相同的映射方法，将其映射至相应的块状帧组合中。
如果CPRI的线比特率比较高，则块状帧组合中可以包含整数个块状帧。不同线比特率的CPRI，块状帧的帧长和格式是相同的，对于线比特率高速度快的CPRI采用多个块状帧来承载，所以上述封装能够满足任意速率的CPRI的封装和承载。
实施例5
图5为本发明实施例5提供的一种数据传输过程示意图，所述过程包括以下步骤：
S101：在每个数据传输周期，根据至少一个接收端的CPRI的线比特率，针对每个接收端，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节。
在本发明实施例中，当接收端只有一个时，所述数据传送方法可以是端到端的传输，当接收端有多个时，所述数据传输方法可以是端到多端的传输。接收端可以向接收端传输数据，该发送端中保存有每个接收端的CPRI的线比特率，及向接收端传输数据的周期。每个传输周期的长度是根据接收端的数量及每个周期中与每个接收端进行数据传输的数据量确定的。在每个传输周期中不同的接收端被分配的传输时长相同或不同。
在每个数据传输周期中，可以针对接收端的CPRI的线比特率，对当前需要传输的CPRI对应的帧进行FTN封装，得到封装后的块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节。也就是说针对每个接收端，封装与该接收端对应的块状帧组合。
如果接收端的CPRI的线比特率为选择1Option1，采用FTN封装方式，将CPRI对应的帧封装为包括1个块状帧的块状帧组合；如果当前接收端的CPRI的线比特率为选择2Option2，采用FTN封装方式，将CPRI对应的帧封装为包括2个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择3Option3，采用FTN封装方式，将CPRI对应的帧封装为包括4个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择4Option4，采用FTN封装方式，将CPRI对应的帧封装为包括5个块状帧的块状帧组合；如 果接收端的CPRI的线比特率为选择5Option5，采用FTN封装方式，将CPRI对应的帧封装为包括8个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择6Option6，采用FTN封装方式，将CPRI对应的帧封装为包括10个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择7和7A Option7和7A，采用FTN封装方式，将CPRI对应的帧封装为包括16个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择8Option8，采用FTN封装方式，将CPRI对应的帧封装为包括20个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择9Option9，采用FTN封装方式，将CPRI对应的帧封装为包括24个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择10Option10，采用FTN封装方式，将CPRI对应的帧封装为包括48个块状帧的块状帧组合。
其中，所述净荷速率是指块状帧组合中只包括帧负荷字节时的传输速率，所述封装后的速率是指块状帧组合中包括帧开销字节和帧负荷字节时的传输速率。
S102：按照预设的在传输周期中各块状帧组合的映射位置，将每个块状帧组合映射到灵活信道(Flex Tunnel)的对应位置传输。
发送端中保存有数据传输周期中各块状帧组合的映射位置，当针对每个接收端封装得到该接收端对应的块状帧组合后，根据预先保存的各块状帧组合的映射位置，将各块状帧组合映射到灵活信道的对应位置传输。每个时间周期中的发送端与每个接收端进行数据传输时的映射位置是相同的。
所述灵活信道中除了可以传输采用FTN封装的块状帧组合，也可以传输采用TDM封装的块状帧，以及以太网信号的块状帧。
如图6所示为块状帧组合在灵活信道中传输过程示意图，每个灵活信道为一个物理通道，在每个数据传输周期，发送端向3个接收端传输数据， 图6中具体提供了在第N个传输周期的数据传输过程示意图，其中第n个传输周期是该传输过程中的任意一个传输周期，每个传输周期的传输情况与该第n个传输周期的数据传输过程相同。
具体的，在每个数据传输周期，发送端向3个接收端传输数据，针对第一个接收端，该接收端的CPRI的线比特率为选择2Option2，采用FTN封装方式，将CPRI对应的帧封装为包括2个块状帧的块状帧组合。在与第二个接收端进行数据传输时，根据针对第二个接收端的CPRI的线比特率为选择8Option8，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括20个块状帧。在与第三个接收端进行数据传输时，根据针对第三个接收端的CPRI的线比特率为选择3Option3，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括4个块状帧。
根据预设的在传输周期中各块状帧组合的映射位置，将每个块状帧组合映射到灵活信道的对应位置，映射后如图6所示，映射后的该传输周期中，包括包含有2个块状帧的块状帧组合、包含20个块状帧的块状帧组合和包含4个块状帧的块状帧组合。
为了方便后续传输，在每个传输周期中还可以预留相应的资源，以满足意外情况发生时的数据传输需求。
对于每个接收端，根据预设的在传输周期中各块状帧组合的映射位置，在每个传输周期中获取发送给自身的块状帧组合。
本发明实施例提供的数据传输过程所对应的数据传输网络架构中，可以包括多条Flex Tunnel，Flex Tunnel的构建由多层控制器(controller)通过集中算路及配置完成，算路包括每个段落的针对特定的Flex Tunnel的数量及时隙，通过集中的算路实现两个互联节点的Flex tunnel的配置。
图7为本发明实施例1提供的一种数据封装装置结构图，所述装置包 括：
存储模块71，配置为保存接收端的CPRI的线比特率；
封装模块72，配置为根据接收端的CPRI的线比特率，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中，所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节。
所述封装模块72，配置为如果封装后的所述块状帧中包括的帧开销字节帧包含同步字节、GCC字节、BIP字节、FEC帧负荷字节、OAM字节、同步字节、FEC帧开销字节和RES字节，将所述块状帧中第1个word至第6个word中的帧开销字节设置为帧同步字节；将所述块状帧中第7个word中的帧开销字节设置为GCC字节；将所述块状帧中第8个word至第10个word中的帧开销字节设置为BIP字节；将所述块状帧中第11个word至第154个word中的帧开销字节设置为FEC帧负荷字节；将所述块状帧中第155个word至第226个word中的帧开销字节设置为OAM字节；将所述块状帧中第227个word中的帧开销字节设置为同步字节；将所述块状帧中第228个word至第253个word中的帧开销字节设置为FEC帧开销字节；将所述块状帧中第254个word至第256个word中的帧开销字节设置为RES字节。
所述封装模块72，配置为如果接收端的CPRI的线比特率为选择1Option1，采用FTN封装方式，将CPRI对应的帧封装为包括1个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择2Option2，采用FTN封装方式，将CPRI对应的帧封装为包括2个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择3Option3，采用FTN封装方式，将CPRI对应的帧封装为包括4个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择4Option4，采用FTN封装方式，将CPRI对应的帧封装为包括 5个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择5Option5，采用FTN封装方式，将CPRI对应的帧封装为包括8个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择6Option6，采用FTN封装方式，将CPRI对应的帧封装为包括10个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择7和7A Option7和7A，采用FTN封装方式，将CPRI对应的帧封装为包括16个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择8Option8，采用FTN封装方式，将CPRI对应的帧封装为包括20个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择9Option9，采用FTN封装方式，将CPRI对应的帧封装为包括24个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择10Option10，采用FTN封装方式，将CPRI对应的帧封装为包括48个块状帧的块状帧组合。
需要说明的是：上述实施例提供的数据封装装置在进行数据封装时，仅以上述各程序模块的划分进行举例说明，实际应用中，可以根据需要而将上述处理分配由不同的程序模块完成，即将装置的内部结构划分成不同的程序模块，以完成以上描述的全部或者部分处理。另外，上述实施例提供的数据封装装置与数据封装方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
本发明实施例还提供了一种数据封装装置，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行：根据接收端的CPRI的线比特率，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个字节组合word，每个word中包括帧开销字节和帧负荷字节。
在一实施例中，所述处理器用于运行所述计算机程序时，执行：如果封装后的所述块状帧中包括的帧开销字节帧包含帧同步字节、GCC字节、 BIP字节、FEC帧负荷字节、OAM字节、同步字节、FEC帧开销字节和RES字节，将所述块状帧中第1个word至第6个word中的帧开销字节设置为帧同步字节；将所述块状帧中第7个word中的帧开销字节设置为GCC字节；将所述块状帧中第8个word至第10个word中的帧开销字节设置为BIP字节；将所述块状帧中第11个word至第154个word中的帧开销字节设置为FEC帧负荷字节；将所述块状帧中第155个word至第226个word中的帧开销字节设置为OAM字节；将所述块状帧中第227个word中的帧开销字节设置为同步字节；将所述块状帧中第228个word至第253个word中的帧开销字节设置为FEC帧开销字节；将所述块状帧中第254个word至第256个word中的帧开销字节设置为RES字节。
在一实施例中，所述处理器用于运行所述计算机程序时，执行：如果接收端的CPRI的线比特率为选择1Option1，采用FTN封装方式，将CPRI对应的帧封装为包括1个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择2Option2，采用FTN封装方式，将CPRI对应的帧封装为包括2个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择3Option3，采用FTN封装方式，将CPRI对应的帧封装为包括4个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择4Option4，采用FTN封装方式，将CPRI对应的帧封装为包括5个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择5Option5，采用FTN封装方式，将CPRI对应的帧封装为包括8个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择6Option6，采用FTN封装方式，将CPRI对应的帧封装为包括10个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择7和7A Option7和7A，采用FTN封装方式，将CPRI对应的帧封装为包括16个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择8Option8，采用FTN封装方式，将CPRI对应的帧封装为包括20个块状帧的块状帧组合；如果接收端的 CPRI的线比特率为选择9Option9，采用FTN封装方式，将CPRI对应的帧封装为包括24个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择10Option10，采用FTN封装方式，将CPRI对应的帧封装为包括48个块状帧的块状帧组合。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行：根据接收端的CPRI的线比特率，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个字节组合word，每个word中包括帧开销字节和帧负荷字节。
在一实施例中，所述计算机可执行指令用于执行：如果封装后的所述块状帧中包括的帧开销字节帧包含帧同步字节、GCC字节、BIP字节、FEC帧负荷字节、OAM字节、同步字节、FEC帧开销字节和RES字节，将所述块状帧中第1个word至第6个word中的帧开销字节设置为帧同步字节；将所述块状帧中第7个word中的帧开销字节设置为GCC字节；将所述块状帧中第8个word至第10个word中的帧开销字节设置为BIP字节；将所述块状帧中第11个word至第154个word中的帧开销字节设置为FEC帧负荷字节；将所述块状帧中第155个word至第226个word中的帧开销字节设置为OAM字节；将所述块状帧中第227个word中的帧开销字节设置为同步字节；将所述块状帧中第228个word至第253个word中的帧开销字节设置为FEC帧开销字节；将所述块状帧中第254个word至第256个word中的帧开销字节设置为RES字节。
在一实施例中，所述计算机可执行指令用于执行：如果接收端的CPRI的线比特率为选择1Option1，采用FTN封装方式，将CPRI对应的帧封装为包括1个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择2Option2，采用FTN封装方式，将CPRI对应的帧封装为包括2个块状帧的 块状帧组合；如果接收端的CPRI的线比特率为选择3Option3，采用FTN封装方式，将CPRI对应的帧封装为包括4个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择4Option4，采用FTN封装方式，将CPRI对应的帧封装为包括5个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择5Option5，采用FTN封装方式，将CPRI对应的帧封装为包括8个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择6Option6，采用FTN封装方式，将CPRI对应的帧封装为包括10个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择7和7A Option7和7A，采用FTN封装方式，将CPRI对应的帧封装为包括16个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择8Option8，采用FTN封装方式，将CPRI对应的帧封装为包括20个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择9Option9，采用FTN封装方式，将CPRI对应的帧封装为包括24个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择10Option10，采用FTN封装方式，将CPRI对应的帧封装为包括48个块状帧的块状帧组合。
图8为本发明实施例5提供的一种数据传输装置结构图，所述装置包括：
封装模块81，配置为在每个数据传输周期，根据至少一个接收端的通用CPRI的线比特率，针对每个接收端，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个word，每个word中包括帧开销字节和帧负荷字节；
传输模块82，配置为按照预设的在传输周期内与每个接收端进行数据传输的顺序，将每个块状帧组合按照所述顺序承载在灵活信道中传输。
需要说明的是：上述实施例提供的数据传输装置在进行数据传输时，仅以上述各程序模块的划分进行举例说明，实际应用中，可以根据需要而 将上述处理分配由不同的程序模块完成，即将装置的内部结构划分成不同的程序模块，以完成以上描述的全部或者部分处理。另外，上述实施例提供的数据传输装置与数据传输方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
本发明实施例还提供了一种数据传输装置，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行：在每个数据传输周期，根据至少一个接收端的CPRI的线比特率，针对每个接收端，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中，所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个字节组合word，每个word中包括帧开销字节和帧负荷字节；按照预设的在传输周期中各块状帧组合的映射位置，将每个块状帧组合映射到灵活信道的对应位置传输。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行：在每个数据传输周期，根据至少一个接收端的CPRI的线比特率，针对每个接收端，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中，所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个字节组合word，每个word中包括帧开销字节和帧负荷字节；按照预设的在传输周期中各块状帧组合的映射位置，将每个块状帧组合映射到灵活信道的对应位置传输。
本发明实施例根据收端的CPRI的线比特率进行FTN封装，封装后的块状帧组合中包含至少一个块状帧，所以可以满足任何速率的CPRI的封装和传输，并且块状帧的帧长固定，每个块状帧包括256个word，每个word包括帧开销字节和帧负荷字节，该封装后的帧结构简单，从而有效的降低端到端的传输时延，提高了传输效率。
对于装置实施例而言，由于其基本相似于方法实施例，所以描述的比 较简单，相关之处参见方法实施例的部分说明即可。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者一个操作与另一个实体或者另一个操作区分开来，而不一定要求或者暗示这些实体或者操作之间存在任何这种实际的关系或者顺序。
本领域内的技术人员应明白，本申请的实施例可提供为方法、装置、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全应用实施例、或结合应用和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、装置、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机 实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。
工业实用性
本发明实施例的技术方案根据当前接收端的CPRI的线比特率进行FTN封装，封装后的块状帧组合中包含至少一个块状帧，可以满足任何速率的CPRI的封装和传输，并且块状帧的帧长固定，每个块状帧包括256个word，每个word包括帧开销字节和帧负荷字节，该封装后的帧结构简单，从而有效的降低端到端的传输时延，提高了传输效率。

Claims (13)

  1. 一种数据封装方法，所述数据封装方法包括：
    根据接收端的通用公共无线接口CPRI的线比特率，采用前传传输网络FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个字节组合word，每个word中包括帧开销字节和帧负荷字节。
  2. 如权利要求1所述的方法，其中，所述每个word中包括的帧开销字节占用1个字节，帧负荷字节占用16个字节。
  3. 如权利要求1所述的方法，其中，所述块状帧中包括以下至少一种帧开销字节：
    帧同步字节、一般通信通道GCC字节、比特间插奇偶校验BIP字节、前向纠错FEC帧负荷字节、操作管理和维护OAM字节、同步字节、FEC帧开销字节和预留RES字节。
  4. 如权利要求3所述的方法，其中，如果所述块状帧中包括的帧开销字节帧包含帧同步字节、GCC字节、BIP字节、FEC帧负荷字节、OAM字节、同步字节、FEC帧开销字节和RES字节，其中，
    所述块状帧中第1个word至第6个word中的帧开销字节为帧同步字节；
    所述块状帧中第7个word中的帧开销字节为GCC字节；
    所述块状帧中第8个word至第10个word中的帧开销字节为BIP字节；
    所述块状帧中第11个word至第154个word中的帧开销字节为FEC帧负荷字节；
    所述块状帧中第155个word至第226个word中的帧开销字节为OAM字节；
    所述块状帧中第227个word中的帧开销字节为同步字节；
    所述块状帧中第228个word至第253个word中的帧开销字节为FEC帧开销字节；
    所述块状帧中第254个word至第256个word中的帧开销字节为RES字节。
  5. 如权利要求1所述的方法，其中，所述根据接收端的通用CPRI的线比特率，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合包括：
    如果接收端的CPRI的线比特率为选择1Option1，采用FTN封装方式，将CPRI对应的帧封装为包括1个块状帧的块状帧组合；
    如果接收端的CPRI的线比特率为选择2Option2，采用FTN封装方式，将CPRI对应的帧封装为包括2个块状帧的块状帧组合；
    如果接收端的CPRI的线比特率为选择3Option3，采用FTN封装方式，将CPRI对应的帧封装为包括4个块状帧的块状帧组合；
    如果接收端的CPRI的线比特率为选择4Option4，采用FTN封装方式，将CPRI对应的帧封装为包括5个块状帧的块状帧组合；
    如果接收端的CPRI的线比特率为选择5Option5，采用FTN封装方式，将CPRI对应的帧封装为包括8个块状帧的块状帧组合；
    如果接收端的CPRI的线比特率为选择6Option6，采用FTN封装方式，将CPRI对应的帧封装为包括10个块状帧的块状帧组合；
    如果接收端的CPRI的线比特率为选择7和7A Option7和7A，采用FTN封装方式，将CPRI对应的帧封装为包括16个块状帧的块状帧组合；
    如果接收端的CPRI的线比特率为选择8Option8，采用FTN封装方式，将CPRI对应的帧封装为包括20个块状帧的块状帧组合；
    如果接收端的CPRI的线比特率为选择9Option9，采用FTN封装方式，将CPRI对应的帧封装为包括24个块状帧的块状帧组合；
    如果接收端的CPRI的线比特率为选择10Option10，采用FTN封装方 式，将CPRI对应的帧封装为包括48个块状帧的块状帧组合。
  6. 一种基于权利要求1-5任一项所述的数据封装方法的数据传输方法，所述数据传输方法包括：
    在每个数据传输周期，根据至少一个接收端的CPRI的线比特率，针对每个接收端，采用FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中，所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个字节组合word，每个word中包括帧开销字节和帧负荷字节；
    按照预设的在传输周期中各块状帧组合的映射位置，将每个块状帧组合映射到灵活信道的对应位置传输。
  7. 一种数据封装装置，所述数据封装装置包括：
    存储模块，配置为保存接收端的通用公共无线接口CPRI的线比特率；
    封装模块，配置为根据接收端的CPRI的线比特率，采用前传传输网络FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中，所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个字节组合word，每个word中包括帧开销字节和帧负荷字节。
  8. 如权利要求7所述的装置，其中，所述封装模块，配置为如果封装后的所述块状帧中包括的帧开销字节帧包含帧同步字节、一般通信通道GCC字节、比特间插奇偶校验BIP字节、前向纠错FEC帧负荷字节、操作管理和维护OAM字节、同步字节、FEC帧开销字节和预留RES字节，将所述块状帧中第1个word至第6个word中的帧开销字节设置为帧同步字节；将所述块状帧中第7个word中的帧开销字节设置为GCC字节；将所述块状帧中第8个word至第10个word中的帧开销字节设置为BIP字节；将所述块状帧中第11个word至第154个word中的帧开销字节设置为FEC帧负荷字节；将所述块状帧中第155个word至第226个word中的帧开销字节设置为OAM字节；将所述块状帧中第227个word中的帧开销字节设 置为同步字节；将所述块状帧中第228个word至第253个word中的帧开销字节设置为FEC帧开销字节；将所述块状帧中第254个word至第256个word中的帧开销字节设置为RES字节。
  9. 如权利要求7所述的装置，其中，所述封装模块，配置为如果接收端的CPRI的线比特率为选择1Option1，采用FTN封装方式，将CPRI对应的帧封装为包括1个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择2Option2，采用FTN封装方式，将CPRI对应的帧封装为包括2个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择3Option3，采用FTN封装方式，将CPRI对应的帧封装为包括4个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择4Option4，采用FTN封装方式，将CPRI对应的帧封装为包括5个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择5Option5，采用FTN封装方式，将CPRI对应的帧封装为包括8个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择6Option6，采用FTN封装方式，将CPRI对应的帧封装为包括10个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择7和7A Option7和7A，采用FTN封装方式，将CPRI对应的帧封装为包括16个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择8Option8，采用FTN封装方式，将CPRI对应的帧封装为包括20个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择9Option9，采用FTN封装方式，将CPRI对应的帧封装为包括24个块状帧的块状帧组合；如果接收端的CPRI的线比特率为选择10Option10，采用FTN封装方式，将CPRI对应的帧封装为包括48个块状帧的块状帧组合。
  10. 一种基于权利要求7-9任一项所述的数据封装装置的数据传输装置，所述数据传输装置包括：
    封装模块，配置为在每个数据传输周期，根据至少一个接收端的通用 公共无线接口CPRI的线比特率，针对每个接收端，采用前传传输网络FTN封装方式，将CPRI对应的帧封装为块状帧组合，其中所述块状帧组合中包括至少一个块状帧，每个块状帧包括256个字节组合word，每个word中包括帧开销字节和帧负荷字节；
    传输模块，配置为按照预设的在传输周期中各块状帧组合的映射位置，将每个块状帧组合映射到灵活信道的对应位置传输。
  11. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1至5任一项所述数据封装方法的步骤；
    或者，所述计算机可执行指令用于执行权利要求6所述数据传输方法的步骤。
  12. 一种数据封装装置，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行权利要求1至5任一项所述方法的步骤。
  13. 一种基于权利要求12所述的数据封装装置的数据传输装置，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行权利要求6所述方法的步骤。
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