CN105743614B - The transmission method and device of data - Google Patents

The transmission method and device of data Download PDF

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Publication number
CN105743614B
CN105743614B CN201610205817.1A CN201610205817A CN105743614B CN 105743614 B CN105743614 B CN 105743614B CN 201610205817 A CN201610205817 A CN 201610205817A CN 105743614 B CN105743614 B CN 105743614B
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China
Prior art keywords
data
information
transmission
sending terminal
message
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CN105743614A (en
Inventor
洪珂
吴建国
苏学敏
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Shenzhen Aijieyun Technology Co ltd
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Wangsu Science and Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • 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
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/12—Shortest path evaluation

Abstract

The invention discloses a kind of transmission method of data and devices.Wherein, this method comprises: receiving the object message that data sending terminal is sent by first object transmission path, wherein, the optimal transmission paths in multiple transmission paths that first object transmission path is established between the first time data receiving end and data sending terminal, object message are used to indicate to there are the data lost in the initial data of data sending terminal transmission；Judge whether object message is default message, wherein default message is message of the initial data of data sending terminal transmission after forward error correction coding；If it is judged that object message is default message, then object message is parsed, obtains parsing information, and parsing information is sent to data sending terminal, wherein parsing information transmits data indicated by parsing information for notification data transmitting terminal again.The present invention solves the lower technical problem of data transmission efficiency in the prior art.

Description

The transmission method and device of data
Technical field
The present invention relates to data processing fields, in particular to the transmission method and device of a kind of data.
Background technique
In existing internet, the multi-host mainframe with a plurality of parallel access link is more and more common, more host masters There is a plurality of reachable path, this characteristic provides new thinking to promote the performance of existing transport protocol between machine.And it is current Widely used two kinds of transport protocol transmission control protocols (Transmission Control Protocol, abbreviation TCP) and use User data packet protocol (User Datagram Protocol, abbreviation UDP) is in mainstream operation system (for example, linux system) Realization is all only capable of transmitting data using a reachable path between data sending terminal and data receiver, cannot be sufficiently sharp Transmission performance is improved with the multipath characteristic of multi-host mainframe.Thus, there are some multi-path transmission schemes, such as open source community MPTCP agreement, which realizes multi-path transmission by modifying the kernel TCP protocol stack of linux system, so that TCP is more The transmission in path is to layer transparent, but there is also following drawbacks for the above method:
Disadvantage one, with this solution linux system kernel level realize TCP multi-path transmission when, kernel TCP need to be modified The realization of protocol stack, and coupled with kernel depth.But such as to use the above method that must upgrade kernel, however upgrade kernel Linux kernel main line is not entered also, it is also not commercial, it in turn, not can guarantee reliability, be if necessarily being given using the above method Regiment commander carrys out risk, while increasing the workload of O&M；
Disadvantage two blocks (Head of Line, abbreviation HOL) characteristic due to the natural the end of a thread of Transmission Control Protocol, if a plurality of transmission There is packet loss or link down in any one paths (referred to as subflow is a common TCP connection) in path, then necessary It waits the path to restore that transmitting message could be retransmitted, or retransmits message by other paths；
Disadvantage three requires stringent data sequentially to transmit due to Transmission Control Protocol, and message needs weigh by path in data sending terminal New number, and the original serial number of data is remapped in data receiver.However different paths are in bandwidth, delay and packet loss Etc. have differences, therefore receiving end must cache a large amount of out-of-order messages reached and go forward side by side rearrangement sequence, this, which is necessarily increased, is The memory and CPU overhead of system.
For above-mentioned problem, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of transmission method of data and devices, at least to solve data biography in the prior art The lower technical problem of defeated efficiency.
According to an aspect of an embodiment of the present invention, a kind of transmission method of data is provided, comprising: receive data and send Hold the object message sent by first object transmission path, wherein the first object transmission path is the first time data The optimal transmission paths in multiple transmission paths established between receiving end and the data sending terminal, the object message are used for Indicate there are the data lost in the initial data of the data sending terminal transmission；Judge whether the object message is default report Text, wherein the default message is message of the initial data of data sending terminal transmission after forward error correction coding；Such as Fruit judges that the object message is the default message, then parses to the object message, obtains parsing information, and will The parsing information is sent to the data sending terminal, wherein the parsing information is for notifying the data sending terminal again Transmit data indicated by the parsing information；Wherein, the data sending terminal is transmitted again indicated by the parsing information When data, by multiple transmission paths for being established between data receiver described in current time and the data sending terminal most Excellent transmission path is transmitted.
Further, the parsing information include the first decoded information and the second decoded information, to the object message into Row parsing, obtain parsing information, and by the parsing information be sent to the data sending terminal include: by the object message into The operation of row decoding FEC；Judge whether succeed to the decoding FEC operation of the object message；If it is judged that institute It states decoding FEC to operate successfully, obtains first decoded information, and first decoded information is sent to the number According to transmitting terminal, wherein first decoded information is used to notify the data sending terminal transmits to lose in the initial data Data；If it is judged that the decoding FEC operation is unsuccessful, second decoded information is obtained, and described second is solved Code information is sent to the data sending terminal, wherein second decoded information is for notifying the data sending terminal to pass again The defeated initial data.
Further, described before receiving the object message that data sending terminal is sent by first object transmission path Method further include: institute is established in multiple initial ip address information of transmitting terminal or multiple initial data transfer ports based on the data State multiple transmission paths.
Further, the method also includes: obtain the first IP address more new information of the data sending terminal, and/or, Obtain the second IP address more new information；According to the first IP of data sending terminal described in first IP address update information update Location information bank, and the second IP address information of information update library is updated according to second IP address, obtain target address information Library；The multiple transmission path with the data sending terminal is established according to the target address information library.
Other side according to an embodiment of the present invention additionally provides a kind of transmission method of data, comprising: is receiving In the case where data sending request, forward error correction coding is carried out to initial data, obtains object message；It is transmitted by first object Path sends the object message to data receiver, wherein the data receiver after receiving the object message, Operation is decoded to the object message, the first object transmission path is the first time data receiving end and the data The optimal transmission paths in multiple transmission paths established between transmitting terminal；Receive the parsing letter that the data receiver is sent Breath；Parsing information institute is transmitted to the data receiver by the second object transmission path again according to the parsing information The data of instruction, wherein second object transmission path is multiple transmission paths at the second moment and the data receiver In optimal transmission paths, second moment and first moment are the different moment.
Further, the parsing information includes the first decoded information and the second decoded information, according to the parsing information Transmitting data indicated by the parsing information again to the data receiver by the second object transmission path includes: basis First decoded information is lost by the object transmission path into the data receiver transmission transmission initial data Data；Or it is described original to data receiver retransmission by the object transmission path according to the second decoded information Data.
Further, the method also includes: every preset time into the multiple transmission path each transmission path Send detection information, wherein detection information is used to detect the transmission performance of the transmission path；It is obtained based on the detection information The transmission performance information of the transmission path；When selecting current in the multiple transmission path according to the transmission performance information Between optimal transmission paths in section as the object transmission path.
Further, before receiving data sending request, the method also includes: receiving end based on the data The multiple transmission path is established in multiple initial ip address information or multiple initial data transfer ports.
Further, the method also includes: obtain the second IP address more new information of the data receiver, and/or, Obtain the first IP address more new information；According to the 2nd IP of data sending terminal described in second IP address update information update Location information bank, and the second IP address information of information update library is updated according to first IP address, obtain target address information Library；The multiple transmission path with the data sending terminal is established according to the target address information library.
According to another aspect of an embodiment of the present invention, a kind of transmitting device of data is additionally provided, comprising: first receives list Member, the object message that transmitting terminal is sent by first object transmission path for receiving data, wherein the first object transmission The optimal transmission road in multiple transmission paths that path is established between the first time data receiving end and the data sending terminal Diameter, the object message are used to indicate there are the data lost in the initial data of the data sending terminal transmission；Judging unit, For judging whether the object message is default message, wherein the default message is the original that the data sending terminal is sent Message of the beginning data after forward error correction coding；Resolution unit, for judging that the object message is the default report In the case where text, then the object message is parsed, obtains parsing information, and the parsing information is sent to the number According to transmitting terminal, wherein the parsing information is for notifying the data sending terminal to be transmitted indicated by the parsing information again Data；Wherein, when the data sending terminal transmits data indicated by the parsing information again, pass through number described in current time It is transmitted according to the optimal transmission paths in the multiple transmission paths established between receiving end and the data sending terminal.
Further, the parsing information includes the first decoded information and the second decoded information, and the resolution unit includes: Decoder module, for the object message to be carried out decoding FEC operation；Judgment module, for judging to the target report Whether the decoding FEC operation of text succeeds；First sending module, for judge decoding FEC operation at In the case where function, first decoded information is obtained, and first decoded information is sent to the data sending terminal, In, first decoded information is for notifying the data sending terminal to transmit the data lost in the initial data；Second hair Module is sent, for obtaining second decoded information in the case where judging that the decoding FEC operates unsuccessful situation, and Second decoded information is sent to the data sending terminal, wherein second decoded information is for notifying the data Transmitting terminal transmits the initial data again.
According to another aspect of an embodiment of the present invention, a kind of transmitting device of data is additionally provided, comprising: coding unit, For carrying out forward error correction coding to initial data, obtaining object message and volume in the case where receiving data sending request Initial data after code；First transmission unit connects for sending the object message to data by first object transmission path Receiving end, wherein the data receiver is decoded operation after receiving the object message, to the object message, Multiple transmission roads that the first object transmission path is established between the first time data receiving end and the data sending terminal Optimal transmission paths in diameter；Second receiving unit, the parsing information sent for receiving the data receiver；Second sends Unit, it is described original for being retransmitted by the object transmission path to the data receiver according to the parsing information The data lost in data or the transmission initial data.
Further, the parsing information includes the first decoded information and the second decoded information, and the second transmission unit includes: First sending module is transmitted for being sent by the object transmission path to the data receiver according to the first decoded information The data lost in the initial data；Or second sending module, for being passed according to the second decoded information by the target Defeated path retransmits the initial data to the data receiver.
In embodiments of the present invention, the target report sent using data sending terminal is received by first object transmission path Text, wherein the first object transmission path be the first moment with it is optimal in multiple transmission paths of the data sending terminal Transmission path, the object message are used to indicate there are the data lost in the initial data of the data sending terminal transmission；Sentence Whether the object message of breaking is default message, wherein the default message is the initial data that the data sending terminal is sent Message after forward error correction coding；If it is judged that the object message is the default message, then to the target report Text is parsed, and obtains parsing information, and the parsing information is sent to the data sending terminal, wherein the parsing letter It ceases for notifying the data sending terminal to transmit the mode of data indicated by the parsing information again, passes through object transmission road Diameter receives the object message that data sending terminal is sent, if the object message received is the report after forward error correction coding Text then can carry out decoding FEC to the object message received, and then according to decoded information notification data transmitting terminal weight Data indicated by new transmission parsing information, if occurring packet loss or link in compared with the existing technology in data transmission procedure The problem of interruption, also needs the scheme for transmitting data again, has achieved the purpose that reduce data retransmission, to realize quickening The technical effect of data transmission bauds, and then solve the lower technical problem of data transmission efficiency in the prior art.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart of the transmission method of data according to an embodiment of the present invention；
Fig. 2 is a kind of flow chart of the transmission method of optional data according to an embodiment of the present invention；
Fig. 3 is the flow chart of the transmission method of another optional data according to an embodiment of the present invention；
Fig. 4 is transmission path update method between a kind of data sending terminal and data receiver according to an embodiment of the present invention Flow chart；
Fig. 5 is a kind of schematic diagram of the transmitting device of data according to an embodiment of the present invention；
Fig. 6 is a kind of schematic diagram of the transmitting device of optional data according to an embodiment of the present invention；
Fig. 7 is the schematic diagram of the transmitting device of another optional data according to an embodiment of the present invention；And
Fig. 8 is the schematic diagram of the transmitting device of another optional data according to an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, " Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product Or other step or units that equipment is intrinsic.
According to embodiments of the present invention, a kind of embodiment of the transmission method of data is provided, it should be noted that in attached drawing Process the step of illustrating can execute in a computer system such as a set of computer executable instructions, although also, Logical order is shown in flow charts, but in some cases, can be executed with the sequence for being different from herein it is shown or The step of description.
Fig. 1 is a kind of flow chart of the transmission method of data according to an embodiment of the present invention, as shown in Figure 1, this method packet Include following steps:
Step S102 receives the object message that data sending terminal is sent by first object transmission path, wherein the first mesh The optimal transmission in multiple transmission paths that mark transmission path is established between the first time data receiving end and data sending terminal Path, object message are used to indicate to there are the data lost in the initial data of data sending terminal transmission.
In embodiments of the present invention, (that is, above-mentioned the at the time of data sending terminal sends initial data to data receiver One moment), an optimal transmission paths can be selected in multiple transmission paths according to initial data to be sent to transmit this Initial data.Select optimal transmission path that can prevent the congestion of data transfer path from causing with the rate of speeding up data transmission Data transmission blocking.
Above-mentioned data sending terminal and data receiver can establish multiple transmission paths by udp protocol.Using udp protocol When establishing multiple transmission paths, the realization of the kernel protocol stack of modification data sending terminal or data receiver is not needed, due to The agreement and kernel decouple, and therefore, there is no need to safeguard a special kernel version, meanwhile, the protocol realization based on UDP is multiple When establishing of transmission path, be not in the end of a thread obstruction the problem of, that is, will not because of some message loss and block.
It should be noted that above-mentioned data receiver and data sending terminal are multi-host mainframe, wherein multi-host mainframe Refer to the host with a plurality of parallel link.
Step S104 judges whether object message is default message, wherein default message is the original that data sending terminal is sent Message of the beginning data after forward error correction coding.
Specifically, data sending terminal can pass through forward error correction technique when sending initial data to data receiver (Forward Error Correction, abbreviation FEC) carries out forward error correction coding to initial data in advance.Therefore, work as data When receiving end receives the message of data sending terminal transmission, it can be determined that whether the message passes through the message after FEC coding.
Step S106 then parses object message if it is judged that object message is default message, obtains parsing letter Breath, and parsing information is sent to data sending terminal, wherein parsing information transmits parsing letter for notification data transmitting terminal again The indicated data of breath.
Specifically, if it is judged that the message is default message (that is, FEC message), before being carried out to the message to Error correction decoding, and the parsing information after decoding process is back to data sending terminal, wherein data sending terminal can be according to number Determine whether to upload initial data again according to the parsing information that receiving end is fed back, or whether uploads in data transmission procedure and lose Data.
In embodiments of the present invention, the object message that data sending terminal is sent is received by object transmission path, if connect The object message received is the message after forward error correction coding, then to entangling before can carrying out to the object message that receives Code is misexplained, and then transmits data indicated by parsing information again according to decoded information notification data transmitting terminal, relative to existing If occurring the problem of packet loss or link down in data transmission procedure also in technology needs the scheme for transmitting data again, reach The purpose for reducing data retransmission, to realize the technical effect of speeding up data transmission speed, and then solves existing The lower technical problem of data transmission efficiency in technology.
In embodiments of the present invention, above-mentioned data sending terminal and data receiver can be any mobile terminal, such as Mobile phone.At this point, data transfer path between two mobile phones can be 2G/3G/4G network and WLAN link, two mobile phones it Between when carrying out data transmission, can by above-mentioned two transmission path data, for example, when the path 2G/3G/4G does not block, It can choose WLAN link by the path transmission data, if the path occurs blocking and carry out data again Transmission.
It optionally, can be by following if above-mentioned parsing information includes the first decoded information and the second decoded information Mode parses object message, obtain parsing information, and by parsing information be sent to data sending terminal: by object message into The operation of row decoding FEC；Judge whether succeed to the decoding FEC operation of object message；If it is judged that forward direction entangles Wrong decoding operate success, obtains the first decoded information, and the first decoded information is sent to data sending terminal, wherein the first solution Data of the code information for being lost in notification data transmitting terminal transmission initial data；If it is judged that decoding FEC operation is not Success, obtains the second decoded information, and the second decoded information is sent to data sending terminal, wherein the second decoded information is used for Notification data transmitting terminal transmits initial data again.
Specifically, in embodiments of the present invention, message can be carried out by the FEC coding/decoding module in data receiver Decoding FEC, and in the successful situation of decoding FEC, the first decoded information is obtained, and in decoding FEC In unsuccessful situation, the second decoded information is obtained, is then solved by the transceiver module in data receiver by obtain first Code information or the second decoded information are sent to data sending terminal.If data sending terminal receives the first decoded information, can To be uploaded again by the transceiver module in data sending terminal according to the packet loss fed back in the first decoded information or out-of-order information Message, at the same time it can also be ranked up according to data after decoding according to the sequence in initial data, and will be after sequence Data are sent to upper layer application；It, will be original according to the second decoded information if data sending terminal receives the second decoded information Data retransmission.
It should be noted that above-mentioned data sending terminal uploads message according to the first decoded information again or solves according to second Code information uploads all messages of initial data again, can be according to multiple biographies at current time (that is, following second moment) Optimal transmission paths in defeated path are transmitted, wherein the optimal transmission paths and first object transmission path at the moment can be with It can also be different path for identical path.
In embodiments of the present invention, above-mentioned data receiver receive carry out FEC coding message after, to message into Row decoding FEC, and loss, random ordering are transmitted according to the optimal transmission paths at current time according to the first decoded information again Message, or according to the mode of the second decoded information again transmitting message whole message, data receiver sum number can be accelerated According to the transmission rate between transmitting terminal, avoids and transmit stuck problem, improve the success rate of transmission.
Optionally, before receiving the message that data sending terminal is sent by object transmission path, following sides can be passed through Formula establishes multiple transmission paths: multiple initial ip address information or multiple initial data transfer ports based on data sending terminal are built Found multiple transmission paths.
Specifically, multiple transmission can be established according to multiple initial ip address information of data receiver and data sending and receiving end Path, for example, when data receiver has n initial ip address information, when data sending terminal has m initial ip address information, root It is n × m according to multiple transmission paths that initial ip address information is established.
Except it is above-mentioned establish multiple transmission paths according to multiple initial ip address information in addition to, different data can also be utilized Transmission port establishes multiple transmission paths.It is assumed that data receiver and data sending terminal only one IP, if network rings The time delay fluctuation in border is bigger, then when the transmission path data established by the IP address, packet loss is relatively high, data biography Defeated rate will be slow, and is likely to occur the case where causing transmission to stop due to lasting packet loss, at this point, the present invention passes through Multiple data transmission ports create multiple transmission paths, wherein the data transmission port in the embodiment of the present invention is to realize number According to the virtual port of the data transmission between receiving end and data sending terminal.Multiple transmission are established by multiple data transmission ports When path, due between multiple transmission paths source port and destination port it is different, it is not that intermediate router, which will be considered that, Same connection, can select different paths when selecting transmission path.Accordingly, it is possible to avoid lasting in data transmission procedure The case where packet loss causes transmission to stop.Simultaneously because the difference of transmission path therefore can in the case where time delay fluctuation is bigger Always to select optimal path to be transmitted, the transmission performance of data is improved.
Optionally, due to the IP address information of data sending terminal and data receiver it is possible that changing, at this point, the party Method further include: the first IP address more new information of data sending terminal is obtained, and/or, obtain the second IP address more new information；According to First IP address updates the first IP address information library of information update data sending terminal, and according to the second IP address more new information The second IP address information library is updated, target address information library is obtained；It is established and data sending terminal according to target address information library Multiple transmission paths.
Specifically, above-mentioned first IP address more new information is the IP address more new information of data sending terminal, the second IP address More new information be data receiver IP address more new information, wherein IP address more new information can for IP address deletion and Increase.
In embodiments of the present invention, above-mentioned data receiver and data sending terminal can be to one link changes of system registry Interface is perceived, in turn, the path management module in path management module and data sending terminal in data receiver can lead to Cross the IP address change information that variation perception interface collects local terminal.It is connect for example, data receiver can be perceived by the variation Mouth knows the IP address change information (that is, the second IP address more new information) of local terminal, and the second IP address more new information is sent out Give opposite end (that is, data sending terminal)；Meanwhile data receiver can also receive the of opposite end (that is, data sending terminal) transmission One IP address more new information.Data receiver can update information update opposite end (that is, data according to the first IP address got Transmitting terminal) the first IP address information library, can also according to the second IP address update information update local terminal (that is, data receiver) The second IP address information library, obtain target ip address information bank.In turn, local terminal (that is, data receiver) can be according to target Updated IP address information re-establishes multiple transmission paths in IP address information library.
Fig. 2 is the flow chart of the transmission method of another data according to an embodiment of the present invention, as shown in Fig. 2, this method Include the following steps:
Step S202 carries out forward error correction coding to initial data, obtains in the case where receiving data sending request Object message.
Specifically, if data sending terminal open forward error correction coding FEC function, can to initial data carry out before to Error Correction of Coding, and the object message after coding is sent to opposite end (that is, data receiver).
Step S204 sends object message to data receiver by first object transmission path, wherein data receiver After receiving object message, operation is decoded to object message, first object transmission path is that the first time data connects The optimal transmission paths in multiple transmission paths established between receiving end and data sending terminal.
Step S206 receives the parsing information that data receiver is sent.
Specifically, if the object message that local terminal (that is, data sending terminal) is sent to data receiver is initial data warp The message after forward error correction coding is crossed, then data receiver can carry out decoding FEC to the object message, be solved Then the parsing information is sent to data receiver by analysis information.
Step S208 transmits parsing information by the second object transmission path according to parsing information again to data receiver Indicated data, wherein the second object transmission path be in multiple transmission paths of the second moment and data sending terminal most Excellent transmission path, the second moment and the first moment are the different moment.
Specifically, data sending terminal can retransmit parsing information by the second object transmission path according to parsing information Indicated data.Wherein, the second moment attach most importance to new transmission object message at the time of, above-mentioned first moment be data sending terminal to At the time of data receiver sends initial data, the optimal transmission paths (that is, first object transmission path) at the first moment and the The optimal transmission paths (that is, second transmission path) at two moment can be identical path, can also be different path.
Therefore, it in the transmission method of data provided by the invention, when data sending terminal carries out message retransmission, can choose The optimal path at current time is retransmitted, and is not necessarily the path of former message transmissions.In the existing method, work as system It was found that will do it re-transmission when message loss, current being achieved in that is retransmitted on original route, and this mode has one Problem is that original route has already appeared congestion, if continuing re-transmission, may cause bigger congestion, message still has Very big probability is lost, and such system will be kept out of the way, and elongates the time interval of re-transmission, until congestion releases, it is clear that can prolong Long transmission time.Therefore, the invention proposes can be with one optimal path of rerouting when carrying out message retransmission, and make It is retransmitted with current optimal path, carries out quick loss recovery, guarantee that the transmission rate of data does not occur because of packet loss Substantially glide.
In embodiments of the present invention, the object message that data sending terminal is sent is received by object transmission path, if connect The object message received is the message after forward error correction coding, then to entangling before can carrying out to the object message that receives Code is misexplained, and then transmits data indicated by parsing information again according to decoded information notification data transmitting terminal, relative to existing If occurring the problem of packet loss or link down in data transmission procedure also in technology needs the scheme for transmitting data again, reach The purpose for reducing data retransmission, to realize the technical effect of speeding up data transmission speed, and then solves existing The lower technical problem of data transmission efficiency in technology.
In embodiments of the present invention, above-mentioned data sending terminal and data receiver can be any mobile terminal, such as Mobile phone.At this point, data transfer path between two mobile phones can be 2G/3G/4G network and WLAN link, two mobile phones it Between when carrying out data transmission, can by above-mentioned two transmission path data, for example, when the path 2G/3G/4G does not block, It can choose WLAN link by the path transmission data, if the path occurs blocking and carry out data again Transmission.
Optionally, if parsing information includes the first decoded information and the second decoded information, led to according to parsing information Crossing the second object transmission path and retransmitting initial data to data receiver may include: according to the first decoded information by the Two object transmission paths send the data lost in transmission initial data to data receiver；Or it is logical according to the second decoded information It crosses the second object transmission path and retransmits initial data to data receiver.
Specifically, it if data sending terminal receives the first decoded information, is lost according to what is fed back in the first decoded information Packet or out-of-order information pass through the second object transmission path and upload message again；If data sending terminal receives the second decoding letter Breath is then transmitted initial data by the second object transmission path again.
Optionally, the above method further include: each transmission path sends spy into multiple transmission paths every preset time Measurement information, wherein detection information is used for the transmission performance in probe transmission path；The transmission of transmission path is obtained based on detection information Performance information；Select the optimal transmission paths in current slot as mesh in multiple transmission paths according to transmission performance information Mark transmission path.
Data transmission method provided by the invention is more to create in addition to making full use of IP address information and data transmission port It, can also passing at every by the path management module regular (for example, preset time) of data sending terminal outside a transmission path Detection information (for example, probe messages) are sent on defeated path to assess the performance in path, dynamic acquisition updates the path delay of time, packet loss Etc. information, and select an optimal transmission path carry out transmitting message, such message always transmits on optimal path, from And avoid carrying out continuous message transmissions on the high path of the big packet loss of time delay, bandwidth is not only consumed, link can be also aggravated Congestion.
For example, when data sending terminal is cell phone apparatus number can be transmitted according to 3G/4G network and Wifi dual link According to, but above-mentioned two transmission paths all again less stable.If wherein there is congestion or go offline in a paths, data transmission It would have to terminate, resettles connection again when waiting paths online and transmitted.However, through the embodiment of the present invention, can make The transmission of data carries out smooth switching in both links, guarantees the stability of data transmission.
If data sending terminal is external equipment over strait, multi-operator link may be used during data transmission, Extend since every operator's link feature is different, when some but highly stable, some time delays are short but shake is very big.It is logical The characteristics of crossing the embodiment of the present invention, can adequately utilizing link, timely handoff links, reduce bandwidth consumption to the greatest extent, provide Transmission rate, while keeping the reliability of transmission.
Optionally, before receiving data sending request, the above method further include: multiple first based on data receiver Multiple transmission paths are established in beginning IP address information or multiple initial data transfer ports.
Specifically, multiple transmission can be established according to multiple initial ip address information of data receiver and data sending and receiving end Path, for example, when data receiver has n initial ip address information, when data sending terminal has m initial ip address information, root It is n × m according to multiple transmission paths that initial ip address information is established.Except above-mentioned more according to the foundation of multiple initial ip address information Except a transmission path, multiple transmission paths can also be established using different data transmission ports.
Optionally, due to the IP address information of data sending terminal and data receiver it is possible that changing, at this point, above-mentioned Method further include: the second IP address more new information of data receiver is obtained, and/or, obtain the first IP address more new information；Root The second IP address information library of information update data sending terminal is updated according to the second IP address, and is updated and believed according to the first IP address Breath updates the second IP address information library, obtains target address information library；According to the foundation of target address information library and data sending terminal Multiple transmission paths.
Specifically, above-mentioned first IP address more new information is the IP address more new information of data sending terminal, the second IP address More new information be data receiver IP address more new information, wherein IP address more new information can for IP address deletion and Increase.
In embodiments of the present invention, above-mentioned data receiver and data sending terminal can be to one link changes of system registry Interface is perceived, in turn, the IP address change information that interface collects local terminal can be perceived by the variation.For example, data receiver The IP address change information (that is, the second IP address more new information) that interface knows local terminal can be perceived by the variation, and should Second IP address more new information is sent to opposite end (that is, data sending terminal)；Meanwhile data receiver can also receive opposite end (that is, Data sending terminal) send the first IP address more new information.Data receiver can be updated according to the first IP address got First IP address information library of information update opposite end (that is, data sending terminal), can also be according to the second IP address more new information more Second IP address information library of new local terminal (that is, data receiver), obtains target ip address information bank.In turn, local terminal is (that is, number According to receiving end) multiple transmission paths can be re-established according to IP address information updated in target ip address information bank.
Fig. 3 is the flow chart of the transmission method of another data according to an embodiment of the present invention, as shown in figure 3, this method Include the following steps:
Step S302, data sending terminal receive initial data and send request.
Step S304, it is determined whether to enable FEC functions for data sending terminal；Wherein, if it is judged that opening FEC function, then It executes step S306 and thens follow the steps S308 if it is judged that not opening FEC function.Wherein, if data sending terminal is not opened FEC function directly gives initial data to path management module without carrying out FEC coding to initial data.
Step S306, data sending terminal give initial data to FEC coding/decoding module, wherein FEC coding/decoding module is number According to the module in transmitting terminal, which is used to carry out FEC coding to the initial data received, in FEC coding/decoding module to original After beginning data are encoded, step S308 is executed.
Step S308, data sending terminal give initial data to path management module, wherein path management module is data The module of transmitting terminal, the module in multiple transmission paths for selecting the optimal transmission paths at current time, so that data are sent out Initial data after coding is sent to opposite end (that is, data receiver) by the optimal transmission paths by sending end.
Step S310, path management module select an optimal path that message is sent to data receiver.
Step S312, data receiver receive message.
Step S314, data receiver judge whether message is FEC message；If data receiver judges message for FEC Message thens follow the steps S316, if it is FEC message that data receiver, which judges message not, thens follow the steps S320.Data receiver It holds after the message for receiving data sending terminal transmission, judges whether the message is FEC message, that is, whether judges initial data It is encoded by FEC, if not FEC message, executes step S320, i.e., arranged according to the sequence of data to receiving message Sequence, and the message after sequence is uploaded to upper layer application；If it is FEC message, step S316 to step S322 is executed.
Step S316 gives message to FEC coding/decoding module, wherein the FEC coding/decoding module is the mould of data receiver Block, the module is for being decoded the FEC message received.
Step S318, judges whether the fec decoder of message succeeds, wherein if it is judged that holding in the case where successfully decoded Row step S320 executes step S322 if it is judged that decoding in unsuccessful situation.
Step S320, reorders to message, sequentially will give upper layer application by message, wherein if FEC encoding and decoding mould Block is then ranked up successfully decoded to the message of successfully decoded according to the sequence to data encoding, and by the report after sequence Text is sent to upper layer application (for example, the client software for being mounted on data receiver).
Step S322, while packet loss and out-of-order information are fed back to data sending terminal, wherein if fec decoder module is to FEC Message it is decoded successfully under, obtain the first decoded information, in first decoded information may include data packet loss or random ordering Information, data sending terminal after receiving the first decoded information, can according to the packet loss for including in the first decoded information or Out-of-order information uploads message again；If fec decoder module is unsuccessful to the decoding of FEC message, the second decoded information is obtained, so that Data sending terminal retransmits initial data to data receiver.
Fig. 4 is a kind of flow chart of transmission path update method according to an embodiment of the present invention.As shown in figure 4, working as data After the data transmission system starting of receiving end and data sending terminal composition, data receiver and data sending terminal can respectively to Operating system registers link change and perceives interface, in turn, perceives the link update letter that interface collects local terminal by the link change It ceases (that is, above-mentioned first IP address more new information), and the link information library of information update local terminal is updated (that is, above-mentioned according to link The first IP address information library in content), while the link of local terminal is updated into information announcement to opposite end, so that opposite end can be timely Update the link information of local terminal, wherein when local terminal is data receiver, data sending terminal is opposite end, when local terminal is data hair When sending end, data receiver is opposite end, and above-mentioned first IP address more new information can be the increase or deletion of IP address.Into one Step ground, local terminal can be with the link of real-time reception opposite end more new information, if receiving the link more new information of opposite end (on that is, State the second IP address more new information in content), then the link information library of opposite end can be updated (that is, second in above content IP address information library).In turn, the link more new information that local terminal can be noticed according to opposite end carries out the update of routing information, increases newly Or delete routing information.
It should be noted that when local terminal gets the link more new information of local terminal, or get local terminal and opposite end When link more new information, or when getting the link more new information of opposite end, according to the link information library of the local terminal of update And/or the link information library of opposite end re-establishes multiple transmission paths of local terminal and opposite end.
The embodiment of the invention also provides a kind of transmitting device of data, which is mainly used for executing of the invention real The transmission method of data provided by an above content is applied, send the transmitting device of the data of offer to do to the embodiment of the present invention below It is specific to introduce.
Fig. 5 is a kind of schematic diagram of the transmitting device of data according to an embodiment of the present invention, as shown in figure 5, the data Transmitting device mainly includes the first receiving unit 51, judging unit 53 and resolution unit 55, in which:
First receiving unit 51, the object message that transmitting terminal is sent by first object transmission path for receiving data, Wherein, in multiple transmission paths that first object transmission path is established between the first time data receiving end and data sending terminal Optimal transmission paths, object message be used for indicate data sending terminal send initial data in exist lose data；
Judging unit 53, for judging whether object message is default message, wherein default message is data sending terminal hair Message of the initial data sent after forward error correction coding；
Resolution unit 55, in the case where judging object message is default message, then being solved to object message Analysis obtains parsing information, and parsing information is sent to data sending terminal, wherein parsing information is used for notification data transmitting terminal Again data indicated by transmission parsing information.
In embodiments of the present invention, the object message that data sending terminal is sent is received by object transmission path, if connect The object message received is the message after forward error correction coding, then to entangling before can carrying out to the object message that receives Code is misexplained, and then transmits data indicated by parsing information again according to decoded information notification data transmitting terminal, relative to existing If occurring the problem of packet loss or link down in data transmission procedure also in technology needs the scheme for transmitting data again, reach The purpose for reducing data retransmission, to realize the technical effect of speeding up data transmission speed, and then solves existing The lower technical problem of data transmission efficiency in technology.
Optionally, parsing information includes the first decoded information and the second decoded information, and resolution unit includes: decoder module, For object message to be carried out decoding FEC operation；Judgment module, for judging the decoding FEC to object message Whether operation succeeds；First sending module, for obtaining the first solution in the case where judging that decoding FEC operates successful situation Code information, and the first decoded information is sent to data sending terminal, wherein the first decoded information is passed for notification data transmitting terminal The data lost in defeated initial data；Second sending module, for judging the unsuccessful situation of decoding FEC operation Under, the second decoded information is obtained, and the second decoded information is sent to data sending terminal, wherein the second decoded information is for leading to Primary data transmitting terminal transmits initial data again.
Optionally, before receiving the message that data sending terminal is sent by object transmission path, which is also wrapped Include: first establishing unit, for based on data sending terminal multiple initial ip address information or multiple initial data transfer ports Establish multiple transmission paths with data sending terminal.
Optionally, the transmitting device further include: first acquisition unit, for obtaining the first IP address of data sending terminal more New information, and/or, obtain the second IP address more new information；First updating unit is used for according to the first IP address more new information more First IP address information library of new data transmitting terminal, and the second IP address information of information update is updated according to the second IP address Library obtains target address information library；Second establishes unit, more with data sending terminal for being established according to target address information library A transmission path.
Fig. 6 is the schematic diagram of the transmitting device of another data according to an embodiment of the present invention, as shown in fig. 6, the data Transmitting device mainly include coding unit 61, the first transmission unit 63, the second receiving unit 65 and the second transmission unit 67, In:
Coding unit 61, for carrying out forward error correction volume to initial data in the case where receiving data sending request Code, the initial data after obtaining object message and coding；
First transmission unit 63, for sending object message to data receiver by first object transmission path, wherein Data receiver is decoded operation after receiving object message, to object message, and first object transmission path is first The optimal transmission paths in multiple transmission paths established between time data receiving end and data sending terminal；
Second receiving unit 65, the parsing information that receiving end is sent for receiving data；
Second transmission unit 67, it is former for being retransmitted by object transmission path to data receiver according to parsing information The data lost in beginning data or transmission initial data.
In embodiments of the present invention, the object message that data sending terminal is sent is received by object transmission path, if connect The object message received is the message after forward error correction coding, then to entangling before can carrying out to the object message that receives Code is misexplained, and then transmits data indicated by parsing information again according to decoded information notification data transmitting terminal, relative to existing If occurring the problem of packet loss or link down in data transmission procedure also in technology needs the scheme for transmitting data again, reach The purpose for reducing data retransmission, to realize the technical effect of speeding up data transmission speed, and then solves existing The lower technical problem of data transmission efficiency in technology.
Optionally, parsing information includes the first decoded information and the second decoded information, and the second transmission unit includes: the first hair Module is sent, is lost for being sent in transmission initial data by object transmission path to data receiver according to the first decoded information Data；Or second sending module, for according to the second decoded information by object transmission path to data receiver again Send initial data.
Optionally, which includes: third transmission unit, for every into multiple transmission paths every preset time A transmission path sends detection information, wherein detection information is used for the transmission performance in probe transmission path；Second acquisition unit, For obtaining the transmission performance information of transmission path based on detection information；Determination unit is used for according to transmission performance information more Select the optimal transmission paths in current slot as object transmission path in a transmission path.
Optionally, before receiving data sending request, the transmitting device further include: third establishes unit, is used for base Multiple transmission paths are established in multiple initial ip address information of data receiver or multiple initial data transfer ports.
Optionally, the transmitting device further include: third acquiring unit, for obtaining the second IP address of data receiver more New information, and/or, obtain the first IP address more new information；Second updating unit is used for according to the second IP address more new information more Second IP address information library of new data transmitting terminal, and the second IP address information of information update is updated according to the first IP address Library obtains target address information library；4th establishes unit, more with data sending terminal for being established according to target address information library A transmission path.
The embodiment of the present invention is illustrated below with reference to Fig. 7 and Fig. 8.As shown in Figure 7 is data sending terminal and data Receive the schematic diagram of the transmission structure of data sending terminal or data receiver in the data transmission system of composition.Fig. 8 is data The structural schematic diagram of the data transmission system of transmitting terminal and data receiver composition.
As shown in fig. 7, above-mentioned data receiver and data sending terminal comprise the following modules: FEC coding/decoding module, transmitting-receiving Module, configuration management module, path management module, multiple data transmission ports, for example, data transmission port 1 to data are transmitted End interface 3.As shown in figure 8, transceiver module 1, FEC module 1, path management module 1 are the module in data sending terminal；Receive and dispatch mould Block 2, FEC module 2, path management module 2 are the module in data receiver.Above-mentioned data receiver and data sending terminal are logical The agreement crossed in kernel protocol stack is communicatively coupled with server.
As shown in figure 8, the practical initial data for wishing transmission of upper layer application is transferred to FEC coding/decoding module 1 by transceiver module 1 It is encoded；Then the initial data after coding is submitted into path management module 1, path management module 1 is on multiple transmission roads An optimal transmission paths are selected in diameter, and send the initial data after encoding to data receiver by the optimal transmission paths End, wherein data sending terminal is sent in the form of message when sending data to data receiver；Data receiver The FEC message received is delivered to FEC coding/decoding module 2 and is decoded, and decoded message is transmitted to transceiver module 2, and give upper layer application, while transceiver module 2 can also will be lost after decoded data being reset by transceiver module 2 Packet or out-of-order information are sent to data sending terminal.So that data sending terminal is after receiving the packet loss or out-of-order information, The optimal transmission paths of 1 passage path management module 1 of transceiver module selection carry out the re-transmission of message.
Since the IP address information of data receiver and data sending terminal may change, it can be with passage path Management module 1 and path management module 2 carry out routing information exchange.For example, can be with passage path management module 1 or path tube It manages module 2 and perceives the link change information of local terminal, while the link change information of opposite end can also be received, in turn, according to local terminal The updated routing information of updated link information and opposite end update multiple transmission paths.Further, path management mould Block 1 or path management module 2 can also regularly send probe messages, and the transporting of multiple transmission paths is detected according to probe messages Can, in turn, an optimal transmission paths are selected from multiple transmission paths.Preferably due to which data sending terminal mainly completes number According to transmission, therefore, can be set path management module 1 to multiple transmission paths send probe messages, to select optimal transmission Path avoids the waste of resource.Meanwhile using the transmission method of above-mentioned data, do not need to modify kernel association shown in fig. 7 Stack is discussed, therefore does not need one special kernel version of maintenance.
As shown in fig. 7, the configuration management module of above-mentioned data receiver or data sending terminal is used to configure the road of local terminal Diameter information, for example, the transmission path disabled in multiple transmission paths, multiple transmission path priority are sent out to multiple transmission paths The interval (that is, preset time) of detection time is sent, and in the case where no multiple IP address are to establish multiple transmission paths It determines and establishes multiple transmission paths by multiple data transmission ports；Configuration management module can be also used for control local terminal and open FEC function；Configuration management module can be also used for determining the attribute of local terminal, i.e. local terminal is data sending terminal or data receiver End, and the IP address information of configuration opposite end.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (13)

1. a kind of transmission method of data characterized by comprising
Receive the object message that data sending terminal is sent by first object transmission path, wherein the first object transmits road The optimal transmission paths in multiple transmission paths that diameter is established between the first time data receiving end and the data sending terminal, The object message is used to indicate there are the data lost in the initial data of the data sending terminal transmission；
Judge whether the object message is default message, wherein the default message is the original that the data sending terminal is sent Message of the beginning data after forward error correction coding；
If it is judged that the object message is the default message, then the object message is parsed, obtains parsing letter Breath, and the parsing information is sent to the data sending terminal, wherein the parsing information is for notifying the data to send Again data indicated by the parsing information are transmitted in end；
Wherein, when the data sending terminal transmits data indicated by the parsing information again, pass through number described in current time It is transmitted according to the optimal transmission paths in the multiple transmission paths established between receiving end and the data sending terminal.
2. the method according to claim 1, wherein the parsing information includes the first decoded information and the second solution Code information, parses the object message, obtains parsing information, and the parsing information is sent to the data and is sent End includes:
The object message is subjected to decoding FEC operation；
Judge whether succeed to the decoding FEC operation of the object message；
If it is judged that the decoding FEC operates successfully, first decoded information is obtained, and described first is decoded Information is sent to the data sending terminal, wherein first decoded information is for notifying described in the data sending terminal transmission The data lost in initial data；
If it is judged that the decoding FEC operation is unsuccessful, second decoded information is obtained, and described second is solved Code information is sent to the data sending terminal, wherein second decoded information is for notifying the data sending terminal to pass again The defeated initial data.
3. the method according to claim 1, wherein passing through first object transmission path receiving data sending terminal Before the object message of transmission, the method also includes:
Multiple initial ip address information of transmitting terminal or multiple initial data transfer ports are established the multiple based on the data Transmission path.
4. the method according to claim 1, wherein the method also includes:
The first IP address more new information of the data sending terminal is obtained, and/or, obtain the second IP address more new information；
According to the first IP address information library of data sending terminal described in first IP address update information update, and according to institute It states the second IP address and updates the second IP address information of information update library, obtain target address information library；
The multiple transmission path with the data sending terminal is established according to the target address information library.
5. a kind of transmission method of data characterized by comprising
In the case where receiving data sending request, forward error correction coding is carried out to initial data, obtains object message；
The object message is sent to data receiver by first object transmission path, wherein the data receiver is connecing After receiving the object message, operation is decoded to the object message, when the first object transmission path is first Carve the optimal transmission paths in the multiple transmission paths established between data receiver and the data sending terminal；
Receive the parsing information that the data receiver is sent；
The parsing information is transmitted to the data receiver by the second object transmission path again according to the parsing information Indicated data, wherein second object transmission path is multiple transmission roads at the second moment and the data receiver Optimal transmission paths in diameter, second moment and first moment are the different moment.
6. according to the method described in claim 5, it is characterized in that, the parsing information includes the first decoded information and the second solution Code information is transmitted the parsing to the data receiver by the second object transmission path according to the parsing information again and is believed Ceasing indicated data includes:
It is sent by the object transmission path to the data receiver according to the first decoded information and transmits the initial data The data of middle loss；Or
The initial data is retransmitted to the data receiver by the object transmission path according to the second decoded information.
7. according to the method described in claim 5, it is characterized in that, the method also includes:
Every preset time, into the multiple transmission path, each transmission path sends detection information, wherein detection information is used In the transmission performance for detecting the transmission path；
The transmission performance information of the transmission path is obtained based on the detection information；
The optimal transmission paths in current slot are selected to make in the multiple transmission path according to the transmission performance information For the object transmission path.
8. according to the method described in claim 5, it is characterized in that, the method is also before receiving data sending request Include:
Multiple initial ip address information of receiving end or multiple initial data transfer ports are established the multiple based on the data Transmission path.
9. according to the method described in claim 8, it is characterized in that, the method also includes:
The second IP address more new information of the data receiver is obtained, and/or, obtain the first IP address more new information；
According to the second IP address information library of data sending terminal described in second IP address update information update, and according to institute It states the first IP address and updates the second IP address information of information update library, obtain target address information library；
The multiple transmission path with the data sending terminal is established according to the target address information library.
10. a kind of transmitting device of data characterized by comprising
First receiving unit, the object message that transmitting terminal is sent by first object transmission path for receiving data, wherein institute State multiple transmission paths that first object transmission path is established between the first time data receiving end and the data sending terminal In optimal transmission paths, the object message, which is used to indicate existing in initial data that the data sending terminal is sent, loses Data；
Judging unit, for judging whether the object message is default message, wherein the default message is data hair Message of the initial data that sending end is sent after forward error correction coding；
Resolution unit, for judge the object message be the default message in the case where, then to the object message It is parsed, obtains parsing information, and the parsing information is sent to the data sending terminal, wherein the parsing information For notifying the data sending terminal to transmit data indicated by the parsing information again；
Wherein, when the data sending terminal transmits data indicated by the parsing information again, pass through number described in current time It is transmitted according to the optimal transmission paths in the multiple transmission paths established between receiving end and the data sending terminal.
11. device according to claim 10, which is characterized in that the parsing information includes the first decoded information and second Decoded information, the resolution unit include:
Decoder module, for the object message to be carried out decoding FEC operation；
Judgment module, for judging whether the decoding FEC operation to the object message succeeds；
First sending module, in the case where judging that the decoding FEC operates successful situation, obtaining first solution Code information, and first decoded information is sent to the data sending terminal, wherein first decoded information is for notifying The data sending terminal transmits the data lost in the initial data；
Second sending module, for obtaining described second in the case where judging that the decoding FEC operates unsuccessful situation Decoded information, and second decoded information is sent to the data sending terminal, wherein second decoded information is for leading to Know that the data sending terminal transmits the initial data again.
12. a kind of transmitting device of data characterized by comprising
Coding unit, for carrying out forward error correction coding to initial data, obtaining in the case where receiving data sending request Initial data after object message and coding；
First transmission unit, for sending the object message to data receiver by first object transmission path, wherein institute Data receiver is stated after receiving the object message, operation, the first object are decoded to the object message The optimal biography in multiple transmission paths that transmission path is established between the first time data receiving end and the data sending terminal Defeated path；
Second receiving unit, the parsing information sent for receiving the data receiver；
Second transmission unit, for according to the parsing information by the object transmission path to the data receiver again Send the data lost in the initial data or the transmission initial data.
13. device according to claim 12, which is characterized in that the parsing information includes the first decoded information and second Decoded information, the second transmission unit include:
First sending module, for being sent by the object transmission path to the data receiver according to the first decoded information Transmit the data lost in the initial data；Or
Second sending module, for according to the second decoded information by the object transmission path to the data receiver again Send the initial data.
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CN103339983A (en) * 2012-09-29 2013-10-02 华为技术有限公司 Data transmission method, apparatus, terminal and base station
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