CN107147619A - Data transmission method based on multi-source, multipath cooperative transmission control protocol - Google Patents
Data transmission method based on multi-source, multipath cooperative transmission control protocol Download PDFInfo
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- CN107147619A CN107147619A CN201710234706.8A CN201710234706A CN107147619A CN 107147619 A CN107147619 A CN 107147619A CN 201710234706 A CN201710234706 A CN 201710234706A CN 107147619 A CN107147619 A CN 107147619A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/19—Flow control; Congestion control at layers above the network layer
- H04L47/193—Flow control; Congestion control at layers above the network layer at the transport layer, e.g. TCP related
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/14—Multichannel or multilink protocols
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention provides a kind of data transmission method based on multi-source, multipath cooperative transmission control protocol.This method mainly includes：MS MPTCP connections are set up between component equipment and terminal, MS MPTCP connections are set up between component equipment and source；Source connects through mulitpath using MS MPTCP and the component equipment enters row data communication, and component equipment utilization MS MPTCP connections enter row data communication with terminal.The present invention can also can as far as possible increase bandwidth in the case where the IP available interface of terminal is few by multipath, so as to improve the utilization rate of the network bandwidth, and reducing the propagation delay times of data, there is provided the data transmission efficiency between source and terminal.Source can be pushed to component equipment by buffer is data cached, and terminal can also obtain data from component equipment, because the problem of buffer is data cached excessive and wraps the out of order source memory consumption brought and the stand-by period increases when alleviating multi-path transmission mass data.Component can obtain and control the congestion window of access terminal, so that more accurate implement congestion control.
Description
Technical field
Controlled the present invention relates to wireless network communication technique field, more particularly to a kind of multi-source, multipath cooperative transmission of being based on
The data transmission method of agreement.
Background technology
Internet relies primarily on two agreements, be respectively IP (Internet Protocol, Internet protocol) agreements and
TCP (Transmission Control Protocol, transmission control protocol) agreement.IP agreement provide it is end-to-end between not
Reliable MESSAGE EXCHANGE service, Transmission Control Protocol is that a kind of transport layer protocol is exchanged there is provided IP-based reliable message, is realized
The reliable exchange of internet data, has established the communication protocol basis for the huge internet that we use now.TCP from propose to
Also updating now.
Generally possess a plurality of net of multiple network interfaces recently as user equipment intellectuality, presentization, i.e. equipment
Network path, but Transmission Control Protocol does not expect the trend of many hosts of many IP address of current smart machine, it is impossible to flexible utilization, pipe
Mulitpath is managed, TCP connections are directly recognized by a pair of transmission layer address (IP address and port numbers), it is impossible to provided to multi-homed host
Transparent support, cause TCP can not using multiple IP address carry out multi-path transmission, can be influenceed during single IP address single path congestion
Data transfer, and have impact on the raising of network utilization.
In view of the above-mentioned problems, numerous scholars propose some solutions.
The first approach is to solve the problem in Internet.Such as Mobile IP, HIP (Host Identity
Protocol), Shim6 (Site Multihoming by IPv6Intermediation), the significant drawback of these methods is
The change in address and path is concealed to upper TCP, TCP congestion controls can not accurately be implemented, and efficiency comparison is low.
Another approach is to solve the problem in transport layer.Such as SCTP (Stream Control Transmission
Protocol, Stream Control Transmission Protocol), SCTP is that there is provided based on unreliable for the transport layer protocol of a connection-oriented stream
Reliable datagram transport protocol on the agreement of transmission services.SCTP can be provided stably, in order between the two endpoints
Data delivery service, support the connection of many IP address, rather than TCP single connection.Stream Control Transmission Protocol is the improvement of Transmission Control Protocol, it
In place of inheriting TCP more perfect congestion controls and improving TCP some shortcomings, but remained between them larger
Difference.Stream Control Transmission Protocol has 2 major defects：
(1) developer needs to change Applied layer interface, difficult to current numerous network application poor compatibility, popularization and application；
(2) SCTP packet due to form and Transmission Control Protocol difference it is larger, set in the middle of the network such as fire wall, NAT of legacy network
It is standby to handle, or even abandon, cause SCTP packet to pass through, such as NAT or fire wall can prevent SCTP bags.
MPTCP (Multipath TCP, multi-path transmission control protocol) is a transport layers of the IETF in definition in 2013
Agreement, multi-path communications are provided based on conventional TCP protocols.The purpose is to allow TCP connections to use multiple IP address progress multichannel
Footpath is transmitted, so as to increase network utilization and reduction delay.MPTCP agreements are a kind of transmission of utilization mulitpath concurrent transmission
Layer protocol, can improve throughput end to end, increase network utilization.And due to the options of MPTCP only to TCP message
Field is extended, it is possible to by legacy network devices without changing network intermediary device, be easily widely used.
MPTCP agreements can complete the demand that user utilizes to many IP interfaces, and adapt to the network environment of current complexity,
But still suffer from problems with：
(1) actual conditions, most of IP interface numbers obtained by subscriber terminal equipment (such as smart mobile phone) are 2,
So as to limit the further lifting of network utilization and the further reduction of time delay.
(2) due to inheriting single buffer mechanism of Transmission Control Protocol, that is, no matter transmitting terminal or receiving terminal only possess one
When individual buffer, MPTCP multi-path transmission, path excessively easily causes the excessive and out of order problems of buffer, and consumption CPU calculates money
Source, increase stand-by period.
The content of the invention
The embodiment provides a kind of data transmission method based on multi-source, multipath cooperative transmission control protocol,
To provide the data transmission efficiency between source and terminal.
To achieve these goals, this invention takes following technical scheme.
A kind of data transmission method based on multi-source, multipath cooperative transmission control protocol, including：
MS-MPTCP connections are set up between component equipment and terminal, MS- is set up between the component equipment and source
MPTCP connections；
The source connects through mulitpath using MS-MPTCP and the component equipment enters row data communication, the component
Equipment utilization MS-MPTCP connections enter row data communication with the terminal.
Further, it is described to be set up between component equipment and terminal before MS-MPTCP connections, including：
Using 0x8 to 0xc, totally five marks are extended to the sub-type field of MPTCP protocol massages, the son after extension
The types value of type field, and corresponding signaling symbols, signaling title are as described in Table 1：
Table 1
| Types value | Signaling symbols | Signaling title |
| 0x8 | MS_SHARE | Component request adds connection signaling |
| 0x9 | MS_JOIN | Component adds connection signaling |
| 0xa | MS_DSS | Component data sequence signaling |
| 0xb | ADD_SOURCE | Add component signaling |
| 0xc | REMOVE_SOURCE | Delete component signaling |
Further, it is described to set up MS-MPTCP connections between component equipment and terminal, including：
Terminal is initiated MPTCP to source by cordless communication network or wireline communication network and shaken hands, by three-way handshake mistake
MPTCP connections between Cheng Jianli terminals and source, switch version number between the terminal and the source；
One or more component equipment is set in access terminal side, and the component equipment possesses multiple IP address, passed through
A plurality of network path is connected with the source, and the component equipment sends component request to the terminal and adds connection signaling MS_
SHARE signalings, MS_SHARE signalings described in the terminal response, by shaking hands between the component equipment and the terminal
Journey, determines that both sides' version supports MS-MPTCP agreements, and the MS-MPTCP set up between the component equipment and the terminal connects
Connect, the component equipment obtains key key of the terminal in being connected with the source MPTCP；
The terminal sends in addition component signaling ADD_SOURCE signalings, the ADD_SOURCE signalings to the source and carried
The address of the component equipment, the source responds the ADD_SOURCE signalings, and the component equipment is added in MPTCP connections
Address.
Further, it is described to set up MS-MPTCP connections between component equipment and source, including：
The component equipment sends the component addition connection signaling MS_JOIN signalings for carrying the key key to the source,
Component equipment is added in request in MPTCP connections, and the source responds the MS_JOIN signalings, the component equipment and the source
Between by handshake procedure, determine that both sides' version supports MS-MPTCP agreements, set up between the component equipment and the source
MS-MPTCP connections.
Further, described source connects through mulitpath using MS-MPTCP and led to component equipment progress data
Letter, the component equipment utilization MS-MPTCP connections enter row data communication with the terminal, including：
The component equipment, institute are given in the source by MS-MPTCP linkup transmit component data sequence signaling MS_DSS signalings
State to carry in MS_DSS signalings and distribute to the data set of the component equipment, the component equipment is by MS-MPTCP connections by institute
State MS_DSS signalings and be transmitted to the terminal, the source is set by MS-MPTCP connections using a plurality of network path to the component
Preparation send the data set corresponding data, and the component equipment is deposited the corresponding data of the data set received
Storage；
The terminal finds that the data of request belong to the data set of one or more component equipment, is connected by MS-MPTCP
Connect to one or more of component equipment and send request of data signaling, one or more of component equipment are according to storage
The corresponding data of the data set, connected by MS-MPTCP to the terminal and send asked data；
The terminal connects to send to one or more component equipment by MS-MPTCP to be needed to be uploaded to the upload in source
Data, one or more of component equipment are sent by MS-MPTCP connections using a plurality of network path to the source respectively
The upload data.
Further, described method also includes：
The source connects to send to the component equipment by MS-MPTCP deletes component signaling REMOVE_SOURCE letters
Order, the component equipment responds the REMOVE_SOURCE signalings, the MS- closed between the component equipment and the source
The REMOVE_SOURCE signalings are transmitted to terminal by MPTCP connections, the component equipment by MS-MPTCP connections, described
REMOVE_SOURCE signalings described in terminal response, the MS-MPTCP connections closed between the terminal and the component equipment；
Or,
The terminal connects to send to the component equipment by MS-MPTCP deletes component signaling REMOVE_SOURCE letters
Order, the component equipment responds the REMOVE_SOURCE signalings, the MS- closed between the component equipment and the terminal
The REMOVE_SOURCE signalings are transmitted to source, the source by MPTCP connections, the component equipment by MS-MPTCP connections
The REMOVE_SOURCE signalings are responded, the MS-MPTCP connections closed between the source and the component equipment.
Further, described method also includes：
The source is connected to the component equipment by MS-MPTCP and sends quick closedown signaling MP_FASTCLOSE signalings,
Inform that component equipment no longer sends data to the component equipment, the component equipment is by MS-MPTCP connections by the MP_
FASTCLOSE signalings are transmitted to terminal, and the component equipment is closed between the source after the completion of the data transfer of storage
MS-MPTCP connections, and the MS-MPTCP connections closed between terminal；
Or；
The terminal is connected to the component equipment by MS-MPTCP and sends quick closedown signaling MP_FASTCLOSE letters
Order, informs that component equipment no longer sends data to the component equipment, and the component equipment is by MS-MPTCP connections by the MP_
FASTCLOSE signalings are transmitted to source, and the component equipment is closed between the terminal after the completion of the data transfer of storage
MS-MPTCP connections, and the MS-MPTCP connections closed between source.
The embodiment of the present invention utilizes MS- by source it can be seen from the technical scheme that embodiments of the invention described above are provided
MPTCP connects through mulitpath and enters row data communication with component equipment, and component equipment utilization MS-MPTCP connections are entered with terminal
Row data communication, can also can as far as possible increase bandwidth in the case where the IP available interface of terminal is few by multipath, from
And the utilization rate of the network bandwidth is improved, reducing the propagation delay times of data, there is provided the data transmission efficiency between source and terminal.
Source can be pushed to component equipment by buffer is data cached, and terminal can also obtain data from component equipment, alleviate multipath
Because buffer is data cached excessive and wraps the out of order source memory consumption brought and the stand-by period increased asks during transmission mass data
Topic.
The additional aspect of the present invention and advantage will be set forth in part in the description, and these will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, being used required in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, without having to pay creative labor, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of main modular schematic diagram of MS-MPTCP extensions provided in an embodiment of the present invention；
Fig. 2 is a kind of main working process schematic diagram of MS-MPTCP agreements provided in an embodiment of the present invention；
Fig. 3 is a kind of general message form schematic diagram of MS-MPTCP agreements provided in an embodiment of the present invention；
Fig. 4 shows for a kind of message format of MS_SHARE (component request adds connection signaling) provided in an embodiment of the present invention
It is intended to；
Fig. 5 is a kind of MS-MPTCP establishment of connections process schematic provided in an embodiment of the present invention；
Fig. 6 is a kind of message format schematic diagram of MS_JOIN (component adds connection signaling) provided in an embodiment of the present invention：
Fig. 7 is a kind of specific addition handshake procedure figure of new component provided in an embodiment of the present invention；
Fig. 8 is a kind of MS_DSS options message format schematic diagram provided in an embodiment of the present invention；
Fig. 9 is a kind of processing procedure schematic diagram of closing MS-MPTCP connections provided in an embodiment of the present invention；
Figure 10 is a kind of ADD_SOURCE message formats schematic diagram provided in an embodiment of the present invention；
Figure 11 passes through ADD_SOURCE for one kind provided in an embodiment of the present invention and adds component address flow chart；
Figure 12 is a kind of message format signal for removing component address REMOVE_SOURCE provided in an embodiment of the present invention
Figure；
Figure 13 passes through REMOVE_SOURCE for one kind provided in an embodiment of the present invention and deletes component address flow chart；
Figure 14 is a kind of process chart for closing component provided in an embodiment of the present invention；
Figure 15 is a kind of data transfer based on multi-source, multipath cooperative transmission control protocol that the embodiment of the present invention one is provided
The process chart of method；
Figure 16 a are that a kind of terminal that the embodiment of the present invention two is provided is led to by the relaying of base station with component equipment, source
The schematic diagram of letter；
Figure 16 b are that a kind of terminal that the embodiment of the present invention two is provided is carried out by the relaying of router with component equipment, source
The schematic diagram of communication；
Figure 16 c are that a kind of terminal that the embodiment of the present invention two is provided is set by base station, the relaying of router and component simultaneously
The schematic diagram that standby, source is communicated；
Figure 17 is what the terminal that the embodiment of the present invention three is provided was communicated by the component equipment of access terminal side with source
Specific process chart.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges
Diction " comprising " refer to there is the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or can also exist
Intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or coupling.Wording used herein
"and/or" includes one or more associated any cells for listing item and all combined.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) with the general understanding identical meaning with the those of ordinary skill in art of the present invention.Should also
Understand, those terms defined in such as general dictionary, which should be understood that, to be had and the meaning in the context of prior art
The consistent meaning of justice, and unless defined as here, will not be explained with idealization or excessively formal implication.
For ease of the understanding to the embodiment of the present invention, done below in conjunction with accompanying drawing by taking several specific embodiments as an example further
Explanation, and each embodiment does not constitute the restriction to the embodiment of the present invention.
The embodiment of the present invention is for MPTCP in a practical situation because IP number of ports is limited, and network utilization can not enter one
The problem of step lifting and the further reduction of time delay, and MPTCP inherit single buffer mechanism of Transmission Control Protocol, and multipath is passed
When defeated, it is excessive that path excessively easily causes buffer, the problem of consumption CPU computing resources, increase stand-by period, and MPTCP is entered
Extension is gone, increase component equipment is increased bandwidth by flexible management network path, reduces time delay.
The embodiment of the present invention proposes a kind of multi-source cooperation MPTCP transmission strategies, and multi-source cooperation MPTCP transmission strategies are pair
A kind of MPTCP extension, supports data buffer area (buffer) segmentation of transmission source being transferred to multiple different sources, recipient
Data can be obtained from these different sources, reach multi-source, the purpose of multipath cooperative transmission, realize point of resource and position
From multi-source first can issue terminal again to data buffer storage and sequence, reduce terminal cpu load.Multi-source, multipath cooperative transmission strategy
Network utilization can further be increased, and pass through flexible management network path in the case where device IP interface number is limited
Reduce collision congestion.
MS-MPTCP (the Multisource and Multipath that the embodiment of the present invention is proposed
TransmissionControlProtocol, multi-source, the control of multipath cooperative transmission) agreement extended to MPTCP, MS-
MPTCP extension main modular schematic diagram as shown in figure 1, including message format, set up connection, increase component, routine operation,
Location is exchanged and six parts of quick closedown.
The function of MS-MPTCP agreements is to carry out path allocation and congestion management from transport layer, MS-MPTCP agreements it is main
Course of work schematic diagram as shown in Fig. 2 including：Terminal is first set up class TCP with component and is connected, component again with the homologous foundation of multipath
Class TCP connections, so that component can control the congestion window of access terminal, and learn that each path congestion situation carries out path tune
Degree.It is achieved thereby that multipath can also be used in terminal single network interface.
The general message form schematic diagrams of MS-MPTCP agreements is as shown in figure 3, subtype is on MPTCP original bases, profit
With 0x8 to 0xc, totally five marks are expanded, concrete meaning such as following table：
(1) MS-MPTCP connections are set up
MS-MPTCP adds MS_SHARE (component request adds connection signaling), its message lattice on the basis of MPTCP
Formula schematic diagram as shown in figure 4, wherein option type, option, subtype, version and A-H implications with MPTCP
MP_CAPABLE signalings are identical；The key of component is the key that component is produced；The key used in MPTCP connections is held to exist for end
Shake hands with other side's first time MPTCP the key of offer in MPTCP.
MS-MPTCP establishment of connections process schematic is as shown in figure 5, MS-MPTCP connections are set up on MPTCP basis
On, MPTCP connections, increase address can be first set up between two end main frames, then component request is sent from component to an end main frame
Connection signaling (MS_SHARE) is added, request is set up MS-MPTCP connections between component and the end main frame, carried by the end main frame
For association key.When the end main frame does not support MS-MPTCP functions, then it will not respond, component, which is added, unsuccessfully returns to MPTCP companies
Connect.
In addition, when both sides' main frame does not support MS-MPTCP, then no matter component is added to either party host request connects
Connect and will not be responded；When a side supports, the opposing party does not support, support can learn other side by the version number shaken hands for the first time
Version does not support that, when component adds connection to the request of support side, the support side can be not responding to.I.e. two ends have any one end not prop up
Component will not be responded when holding, if support is judged by version number.
(2) a new component is increased
MS-MPTCP adds MS_JOIN (component adds connection signaling) on the basis of MPTCP, and its message format is as schemed
Shown in 6, the specific addition handshake procedure of new component is as shown in fig. 7, processing procedure includes：Setting up the basis of MPTCP connections
On, the mode of increase component is similar to the mode of MPTCP new address addition MS-MPTCP connections, when component obtains association key
After MPTCP connections can be added by MS_JOIN signalings, the MPTCP of the specific handshake procedure succession foregoing description, difference be
Terminal is recorded this time and shaken hands as component addition connection.
(4) routine MS-MPTCP is operated
A. data sequence maps
MS_DSS option message format schematic diagrames are as shown in Figure 8：
MS-MPTCP is relative to add MS_DSS signalings with MPTCP, and the signaling has two effects：First, in transmission data
The data set of its transmission is informed during to component；Second, for informing the data set that the opposite end component possesses.
B. data validation
Data validation inherits MPTCP modes, and message is not changed.
C. connection is closed
The processing procedure schematic diagram of MS-MPTCP connections is closed as shown in figure 9, when closing component, can be sent out by any end main frame
MP_FASTCLOSE (the quick closedown signaling in MPTCP agreements) signaled component C is sent no longer to send data to component C, will
The MS-MPTCP connections are closed, component C informs that other end Host Shutdown is connected, stop continuing to transmit data to component C, and at this
Component closes MS-MPTCP connections after the completion of possessing data transfer.
D. reliability and re-transmission
Retransmission scheme includes two kinds, and the first is, when needing to retransmit from source or component request data, to continue from the source
Or component request retransmission；Second when component is disconnected and can not retransmitted then from source acquisition.
F. congestion control
Jamming control method can flexibly be set.
E. component strategy
Component strategy includes source and is transferred to the starting and ending position of component data, whether using component, component collaboration plan
Slightly etc., can flexibly it set.The implementation of strategies can be completed by other expanded signallings, without designing new signaling.
(5) component address information is exchanged
A. component address is informed
ADD_SOURCE message formats schematic diagram as shown in Figure 10, component address flow is added as schemed by ADD_SOURCE
Shown in 11, mainly include：ADD_SOURCE signalings are sent from an end main frame to another end main frame, the signaling includes component address,
The other end response of host signaling, knows component address；It is not responding to or packet loss is then added and failed.
B. component address is removed
The message format for removing component address REMOVE_SOURCE as shown in figure 12, son is deleted by REMOVE_SOURCE
Source address flow as shown in figure 13, mainly includes：When component is deleted in request, REMOVE_SOURCE can be sent by any end main frame
Component is deleted in signaled component C requests, and component C is responded and informed that other end host request deletes component, and another end main frame is rung
Should.
(6) component is closed
The process chart for closing component as shown in figure 14, mainly includes：MP_ can be sent by any end main frame
FASTCLOSE (the quick closedown signaling in MPTCP agreements) signaled component C no longer sends data to component C and is somebody's turn to do closing
Connection, component C informs that other end Host Shutdown is connected, and stops continuing to transmit data to component C, and possess data in the component to pass
Connection is closed after the completion of defeated.
Embodiment one
A kind of processing stream based on multi-source, the data transmission method of multipath cooperative transmission control protocol that the embodiment is provided
Journey is as shown in figure 15, including following process step：
Step S10, MPTCP connections are set up between terminal and source.
Terminal is initiated MPTCP to source by cordless communication network or wireline communication network and shaken hands, by three-way handshake mistake
MPTCP connections between Cheng Jianli terminals and source, switch version number between the terminal and the source.Source refers to that number can be provided
According to one end, server is the one kind in source.
Step S20, MS-MPTCP connections are set up between component equipment and terminal.
One or more component equipment is set in access terminal side, and component equipment possesses multiple IP address, by a plurality of
Network path is connected with the source, and component equipment is also communicated by the relaying of base station or router with terminal.The son
Source device sends component request to the terminal by the relaying of base station or router and adds connection signaling MS_SHARE signalings,
MS_SHARE signalings described in the terminal response, by handshake procedure between the component equipment and the terminal, determine both sides
Version supports MS-MPTCP agreements, the MS-MPTCP connections set up between the component equipment and the terminal, the component
Equipment obtains key key of the terminal in being connected with the source MPTCP；
The terminal sends in addition component signaling ADD_SOURCE signalings, the ADD_SOURCE signalings to the source and carried
The address of the component equipment, the source responds the ADD_SOURCE signalings, and the component equipment is added in MPTCP connections
Address.
Step S30, MS-MPTCP connections are set up between component equipment and source.
The component equipment sends the component addition connection signaling MS_JOIN signalings for carrying the key key to the source,
Component equipment is added in request in MPTCP connections, and the source responds the MS_JOIN signalings, the component equipment and the source
Between by handshake procedure, determine that both sides' version supports MS-MPTCP agreements, set up between the component equipment and the source
MS-MPTCP connections.
Step S40, source connects through mulitpath using MS-MPTCP and component equipment enters row data communication, component equipment
Enter row data communication using MS-MPTCP connections and terminal.
The component equipment, institute are given in the source by MS-MPTCP linkup transmit component data sequence signaling MS_DSS signalings
State to carry in MS_DSS signalings and distribute to the data set of the component equipment, the component equipment is by MS-MPTCP connections by institute
State MS_DSS signalings and be transmitted to the terminal, the source is set by MS-MPTCP connections using a plurality of network path to the component
Preparation send the data set corresponding data, and the component equipment is deposited the corresponding data of the data set received
Storage；
The terminal finds that the data of request belong to the data set of one or more component equipment, is connected by MS-MPTCP
Connect to one or more of component equipment and send request of data signaling, one or more of component equipment are according to storage
The corresponding data of the data set, connected by MS-MPTCP to the terminal and send asked data；
The terminal connects to send to one or more component equipment by MS-MPTCP to be needed to be uploaded to the upload in source
Data, one or more of component equipment are sent by MS-MPTCP connections using a plurality of network path to the source respectively
The upload data.
Step S50, terminal or source are connected to component equipment by MS-MPTCP and send quick closedown signaling MP_
FASTCLOSE signalings, the MS-MPTCP connections closed between component equipment.
The source is connected to the component equipment by MS-MPTCP and sends quick closedown signaling MP_FASTCLOSE signalings,
Inform that component equipment no longer sends data to the component equipment, the component equipment is by MS-MPTCP connections by the MP_
FASTCLOSE signalings are transmitted to terminal, and the component equipment is closed between the source after the completion of the data transfer of storage
MS-MPTCP connections, and the MS-MPTCP connections closed between terminal；
Or；
The terminal is connected to the component equipment by MS-MPTCP and sends quick closedown signaling MP_FASTCLOSE letters
Order, informs that component equipment no longer sends data to the component equipment, and the component equipment is by MS-MPTCP connections by the MP_
FASTCLOSE signalings are transmitted to source, and the component equipment is closed between the terminal after the completion of the data transfer of storage
MS-MPTCP connections, and the MS-MPTCP connections closed between source.
The source connects to send to the component equipment by MS-MPTCP deletes component signaling REMOVE_SOURCE letters
Order, the component equipment responds the REMOVE_SOURCE signalings, the MS- closed between the component equipment and the source
The REMOVE_SOURCE signalings are transmitted to terminal by MPTCP connections, the component equipment by MS-MPTCP connections, described
REMOVE_SOURCE signalings described in terminal response, the MS-MPTCP connections closed between the terminal and the component equipment；
Or,
The terminal connects to send to the component equipment by MS-MPTCP deletes component signaling REMOVE_SOURCE letters
Order, the component equipment responds the REMOVE_SOURCE signalings, the MS- closed between the component equipment and the terminal
The REMOVE_SOURCE signalings are transmitted to source, the source by MPTCP connections, the component equipment by MS-MPTCP connections
The REMOVE_SOURCE signalings are responded, the MS-MPTCP connections closed between the source and the component equipment.
Embodiment two
The carrier side future 5G network architectures
Sudden due to Web vector graphic, the utilization rate of the carrier side network equipment is not high, but user bandwidth is but not
It can effectively improve, because because single IP address of Transmission Control Protocol is bound, single path limits the raising of network utilization.Not
More than 20Gbps can be reached by carrying out 5G terminal wireless communications speed, and this proposes huge requirement to carrier side network, and
MPTCP the bottleneck of the further expansion of network utilization is the IP Limited Numbers of terminal device, network interface card receiving ability limitation and
CPU internal memories limitation etc., mobile phone is typically only capable to possess a sim (Subscriber by single operator's online
Identification Module client identification modules) card, that is to say, that possess an IP, can be by adding using the present invention
Plus component equipment, increase IP, terminal is greatly increased IP numbers in single operator connects and is shifted MPTCP memory consumptions
Some give component equipment, so as to reduce terminal pressure, carrier network utilization rate be improved, so as to meet following 5G network need
Ask, reduce cost.
Figure 16 a are that a kind of terminal that the embodiment of the present invention two is provided is led to by the relaying of base station with component equipment, source
The schematic diagram of letter, Figure 16 b are the schematic diagram that terminal is communicated by the relaying of router with component equipment, source, and Figure 16 c is eventually
The schematic diagram that end is communicated by base station, the relaying of router with component equipment, source simultaneously.In Figure 16 a and Figure 16 c, connect
The base station for entering end side is communicated by cordless communication network with terminal, source, in Figure 16 b and Figure 16 c, access terminal side
Router is communicated by wireline communication network with terminal, source.
Terminal is included by the relaying of base station with the specific implementation step that component equipment, source are communicated：
1st, increase multiple MS-MPTCP components equipment in access terminal side, be used as component when terminal and sources traffic, component
It can be shared by terminal, component equipment possesses multiple IP address and possesses high bandwidth.MS-MPTCP is supported in terminal and source simultaneously.
2nd, when terminal connects internet by base station to be carried out data transmission, component equipment is more by multipath access originator
The total bandwidth of individual component is more than the receiving velocity of terminal, and terminal can obtain data at component, when base station component equipment is accessed
When the path in source produces congestion and causes the bandwidth to shake, because having pushed data into network edge in advance, terminal remains unchanged can
To receive data with constant receiving velocity, so that imperceptible network congestion, meets user's 5G bandwidth demands.
By taking Figure 16 a as an example, concrete processing procedure includes：
When terminal B is by operator access originator A, initiates MPTCP to source from terminal first and shake hands, by three-way handshake, build
Vertical MPTCP connections between terminal and source, and switch version number；Then terminal is shaken hands by component equipment C, determines both sides
Version supports MS-MPTCP to extend, the MS-MPTCP connections set up between terminal and component equipment C, and obtain terminal with source
Key in MPTCP connections, then component equipment C is using the key to source initiation connection, and request addition component is set up component and set
Standby MS-MPTCP connections between C and source.Afterwards, source A sends MS_DSS signalings and gives component equipment C, informs that distributing to component sets
The MS_DSS is transmitted to terminal B by standby C data set, component equipment C, and then log-on data is transmitted, and source is in holding with terminal B's
While data transfer, its data set is distributed to component equipment C transmission, finds that data belong to component during terminal request data
C, then send request of data signaling to component equipment C.
Because component equipment C is near from terminal B, so take data delay low, can be by data multiplex footpath high band under the scene
Width is pushed to the place near apart from user in advance, and user can obtain data nearby.General terminal bandwidth is limited, and IP numbers also have
Limit, it is high to will also result in CPU memory consumptions when IP is excessive, and CPU consumption in part is transferred to component equipment by MS-MPTCP, can be with
Using more IP, bandwidth usage can be optimized by reducing network delay for bandwidth is limited.
3rd, existing IP layers have multipath equally loaded, such as multirouting (ECMP) algorithm of equal value, but the algorithm is simultaneously
Mulitpath can not be utilized well, because multipath is using not necessarily just for equative route, current algorithm can not be fine
This problem is solved, and component can obtain the concrete condition flexible utilization of multipath.
Embodiment three
Big file uploading
In some scenes, have high requirements for big file uploading, it is necessary to quickly transmit as far as possible and liberate terminal,
In this situation, it is possible to use multi-source cooperation MPTCP solves this problem.Terminal can transfer data to nearest component
Equipment, this short haul band is roomy and stably and without congestion interference, and then component can be one by one with source acknowledgement data.Eventually
End is transmitted without waiting for data by very long route network, and data only need to be transmitted to nearest component equipment, complete by component equipment
Into this time-consuming task, so as to liberate terminal as early as possible.
Specific implementation step：
1st, the component equipment can be the universal source of interchanger or router or x86 frameworks, and it supports MS-
MPTCP。
2nd, upgrading terminals equipment, makes it support MS-MPTCP.
3rd, it is terminal and component is direct-connected, can be wifi or the mode such as wired, by component with passing through a plurality of road between source
Footpath is connected.
4th, when uploading data, due to direct-connected, terminal can transmit data to component with stable maximum bandwidth, and data can
With end of transmission quickly, terminal can be liberated.
5th, component will be data cached, and is transferred to source via multistage network by multipath, and confirms packet one by one.
6th, data validation is given network and completed by the mechanism, and user is without waiting for this process.
In summary, the embodiment of the present invention between component equipment and terminal, source by setting up MS-MPTCP connections, source profit
Mulitpath is connected through with MS-MPTCP and enters row data communication, component equipment utilization MS-MPTCP connections and end with component equipment
Hold into row data communication, with following beneficial effect：
(1) bandwidth can also can as far as possible be increased by multipath in the case where the IP available interface of terminal is few, from
And the utilization rate of the network bandwidth is improved, reduce the propagation delay time of data.
(2) source can be pushed to component equipment by buffer is data cached, and terminal can also obtain data from component equipment,
Because when buffer is data cached excessive and wraps the out of order source memory consumption brought and waits when alleviating multi-path transmission mass data
Between the problem of increase.
(3) component can obtain the congestion window of all access terminals, it is possible to be controlled according to present network condition every
The congestion window of individual terminal is so as to reduce collision congestion.
One of ordinary skill in the art will appreciate that：Accompanying drawing be module in the schematic diagram of one embodiment, accompanying drawing or
Flow is not necessarily implemented necessary to the present invention.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.Especially for device or
For system embodiment, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to method
The part explanation of embodiment.Apparatus and system embodiment described above is only schematical, wherein the conduct
The unit that separating component illustrates can be or may not be it is physically separate, the part shown as unit can be or
Person may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can root
Some or all of module therein is factually selected to realize the purpose of this embodiment scheme the need for border.Ordinary skill
Personnel are without creative efforts, you can to understand and implement.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (7)
1. a kind of data transmission method based on multi-source, multipath cooperative transmission control protocol, it is characterised in that including：
MS-MPTCP connections are set up between component equipment and terminal, MS-MPTCP companies are set up between the component equipment and source
Connect；
The source connects through mulitpath using MS-MPTCP and the component equipment enters row data communication, the component equipment
Enter row data communication using MS-MPTCP connections and the terminal.
2. according to the method described in claim 1, it is characterised in that described to set up MS- between component equipment and terminal
Before MPTCP connections, including：
Using 0x8 to 0xc, totally five marks are extended to the sub-type field of MPTCP protocol massages, the subtype after extension
The types value of field, and corresponding signaling symbols, signaling title are as described in Table 1：
Table 1
3. method according to claim 2, it is characterised in that described to set up MS- between component equipment and terminal
MPTCP connections, including：
Terminal is initiated MPTCP to source by cordless communication network or wireline communication network and shaken hands, and is built by three-way handshake process
Vertical MPTCP connections between terminal and source, switch version number between the terminal and the source；
One or more component equipment is set in access terminal side, and the component equipment possesses multiple IP address, by a plurality of
Network path is connected with the source, and the component equipment sends component request to the terminal and adds connection signaling MS_SHARE letters
Order, MS_SHARE signalings described in the terminal response, by handshake procedure between the component equipment and the terminal, it is determined that double
Square version supports MS-MPTCP agreements, the MS-MPTCP connections set up between the component equipment and the terminal, the son
Source device obtains key key of the terminal in being connected with the source MPTCP；
The terminal sends in addition component signaling ADD_SOURCE signalings, the ADD_SOURCE signalings to the source and carries described
The address of component equipment, the source responds the ADD_SOURCE signalings, and the ground of the component equipment is added in MPTCP connections
Location.
4. method according to claim 3, it is characterised in that described to set up MS-MPTCP between component equipment and source
Connection, including：
The component equipment sends the component addition connection signaling MS_JOIN signalings for carrying the key key, request to the source
Component equipment is added in MPTCP connections, the source responds the MS_JOIN signalings, between the component equipment and the source
By handshake procedure, determine that both sides' version supports MS-MPTCP agreements, the MS- set up between the component equipment and the source
MPTCP connections.
5. method according to claim 4, it is characterised in that described source connects through mulitpath using MS-MPTCP
Enter row data communication with the component equipment, the component equipment utilization MS-MPTCP connections carry out data with the terminal and led to
Letter, including：
The component equipment is given in the source by MS-MPTCP linkup transmit component data sequence signaling MS_DSS signalings, described
The data set for distributing to the component equipment is carried in MS_DSS signalings, the component equipment will be described by MS-MPTCP connections
MS_DSS signalings are transmitted to the terminal, and the source is set by MS- MPTCP connections using a plurality of network path to the component
Preparation send the data set corresponding data, and the component equipment is deposited the corresponding data of the data set received
Storage；
The terminal finds that the data of request belong to the data set of one or more component equipment, by MS-MPTCP connect to
One or more of component equipment send request of data signalings, and one or more of component equipment are according to the institute of storage
The corresponding data of data set are stated, is connected by MS-MPTCP and asked data is sent to the terminal；
The terminal connects to send to one or more component equipment by MS-MPTCP to be needed to be uploaded to the upload data in source,
One or more of component equipment send described using a plurality of network path by MS-MPTCP connections to the source respectively
Upload data.
6. the method according to claim 2,3,4 or 5, it is characterised in that described method also includes：
The source connects to send to the component equipment by MS-MPTCP deletes component signaling REMOVE_SOURCE signalings, institute
State component equipment and respond the REMOVE_SOURCE signalings, the MS-MPTCP closed between the component equipment and the source connects
Connect, the REMOVE_SOURCE signalings are transmitted to terminal, the terminal response by the component equipment by MS-MPTCP connections
The REMOVE_SOURCE signalings, the MS-MPTCP connections closed between the terminal and the component equipment；
Or,
The terminal connects to send to the component equipment by MS-MPTCP deletes component signaling REMOVE_SOURCE signalings,
The component equipment responds the REMOVE_SOURCE signalings, the MS- closed between the component equipment and the terminal
The REMOVE_SOURCE signalings are transmitted to source, the source by MPTCP connections, the component equipment by MS-MPTCP connections
The REMOVE_SOURCE signalings are responded, the MS-MPTCP connections closed between the source and the component equipment.
7. the method according to claim 2,3,4 or 5, it is characterised in that described method also includes：
The source is connected to the component equipment by MS-MPTCP and sends quick closedown signaling MP_FASTCLOSE signalings, is informed
Component equipment no longer sends data to the component equipment, and the component equipment is by MS-MPTCP connections by the MP_
FASTCLOSE signalings are transmitted to terminal, and the component equipment is closed between the source after the completion of the data transfer of storage
MS-MPTCP connections, and the MS-MPTCP connections closed between terminal；
Or；
The terminal is connected to the component equipment by MS-MPTCP and sends quick closedown signaling MP_FASTCLOSE signalings, is accused
Know that component equipment no longer sends data to the component equipment, the component equipment is by MS-MPTCP connections by the MP_
FASTCLOSE signalings are transmitted to source, and the component equipment is closed between the terminal after the completion of the data transfer of storage
MS-MPTCP connections, and the MS-MPTCP connections closed between source.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581896A (en) * | 2019-09-30 | 2019-12-17 | 恒信东方文化股份有限公司 | Storage method and system thereof |
| CN111953595A (en) * | 2019-10-24 | 2020-11-17 | 北京大学 | Data transmission architecture based on virtual host |
| CN112333690A (en) * | 2020-11-13 | 2021-02-05 | Oppo广东移动通信有限公司 | Data transmission method, device, storage medium, terminal and network access point equipment |
| CN114500626A (en) * | 2020-11-12 | 2022-05-13 | 华为技术有限公司 | Method, device and equipment for transmitting data and computer readable storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925125A (en) * | 2010-04-23 | 2010-12-22 | 清华大学 | Method of multipath TCP having mobility and combined with mobile IP (internet protocol) |
| CN103905463A (en) * | 2014-04-21 | 2014-07-02 | 北京邮电大学 | Connecting management and control method suitable for multi-path transmitting |
| CN103944691A (en) * | 2013-01-17 | 2014-07-23 | 中兴通讯股份有限公司 | Data retransmission method and access network gateway in collaborative business transmission |
| CN104285472A (en) * | 2014-04-24 | 2015-01-14 | 华为技术有限公司 | MPTCP connection mobile management method and apparatus |
| CN105610820A (en) * | 2015-12-28 | 2016-05-25 | 中国电子科技集团公司第五十四研究所 | Multipath transport control protocol (MPTCP) based congestion control method and apparatus |
| KR101694271B1 (en) * | 2015-07-07 | 2017-01-23 | 공주대학교 산학협력단 | Multipath Cubic for Congestion control |
-
2017
- 2017-04-12 CN CN201710234706.8A patent/CN107147619B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925125A (en) * | 2010-04-23 | 2010-12-22 | 清华大学 | Method of multipath TCP having mobility and combined with mobile IP (internet protocol) |
| CN103944691A (en) * | 2013-01-17 | 2014-07-23 | 中兴通讯股份有限公司 | Data retransmission method and access network gateway in collaborative business transmission |
| CN103905463A (en) * | 2014-04-21 | 2014-07-02 | 北京邮电大学 | Connecting management and control method suitable for multi-path transmitting |
| CN104285472A (en) * | 2014-04-24 | 2015-01-14 | 华为技术有限公司 | MPTCP connection mobile management method and apparatus |
| KR101694271B1 (en) * | 2015-07-07 | 2017-01-23 | 공주대학교 산학협력단 | Multipath Cubic for Congestion control |
| CN105610820A (en) * | 2015-12-28 | 2016-05-25 | 中国电子科技集团公司第五十四研究所 | Multipath transport control protocol (MPTCP) based congestion control method and apparatus |
Non-Patent Citations (2)
| Title |
|---|
| YANNIS THOMAS等: ""accelerating File Downloads in Publish Subscribe Internetworking with Multisource and Multipath Transfers"", 《WTC 2014; WORLD TELECOMMUNICATIONS CONGRESS 2014》 * |
| YANNIS THOMAS等: ""Multi-Flow Congestion Control with Network Assistance"", 《2016 IFIP NETWORKING CONFERENCE (IFIP NETWORKING) AND WORKSHOPS》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581896A (en) * | 2019-09-30 | 2019-12-17 | 恒信东方文化股份有限公司 | Storage method and system thereof |
| CN111953595A (en) * | 2019-10-24 | 2020-11-17 | 北京大学 | Data transmission architecture based on virtual host |
| CN111953594A (en) * | 2019-10-24 | 2020-11-17 | 北京大学 | Data transmission device and method |
| CN111953594B (en) * | 2019-10-24 | 2021-08-17 | 北京大学 | Data transmission device and method |
| CN114500626A (en) * | 2020-11-12 | 2022-05-13 | 华为技术有限公司 | Method, device and equipment for transmitting data and computer readable storage medium |
| WO2022100442A1 (en) * | 2020-11-12 | 2022-05-19 | 华为技术有限公司 | Data transmission method and apparatus, device, and computer readable storage medium |
| CN112333690A (en) * | 2020-11-13 | 2021-02-05 | Oppo广东移动通信有限公司 | Data transmission method, device, storage medium, terminal and network access point equipment |
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|---|---|
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Application publication date: 20170908 Assignee: HENAN QUNZHI INFORMATION TECHNOLOGY CO.,LTD. Assignor: Beijing Jiaotong University Contract record no.: X2021990000779 Denomination of invention: Data transmission method based on multi-source and multipath simultaneous interpreting control protocol Granted publication date: 20191213 License type: Common License Record date: 20211209 |