CN109587749A - Data transmission method for uplink and system - Google Patents
Data transmission method for uplink and system Download PDFInfo
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- CN109587749A CN109587749A CN201811584413.3A CN201811584413A CN109587749A CN 109587749 A CN109587749 A CN 109587749A CN 201811584413 A CN201811584413 A CN 201811584413A CN 109587749 A CN109587749 A CN 109587749A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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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
- H04L45/74—Address processing for routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
Abstract
The invention discloses a kind of data transmission method for uplink and systems, wherein, the described method includes: the Microsoft Loopback Adapter configured in terminal carries out first layer encapsulation to the data to be sent received, and the first data packet obtained after first layer encapsulation is sent to network protocol stack；The network protocol stack carries out second layer encapsulation to first data packet, and is sent to agency service by current network for the second data packet is obtained after second layer encapsulation；The proxy server decapsulates second data packet, obtains first data packet, and first data packet is sent to the receiving end.A kind of data transmission method for uplink and system that the embodiment of the present invention proposes, realize that mobile site communicates to connect in the case where network switching does not interrupt.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of data transmission method for uplink and systems.
Background technique
Various functions may be implemented by accessing network in intelligent terminal, bring to daily life huge
Convenience.
When intelligent terminal can not continue to connect current network, connection can be switched according to current network strategy intelligent terminal
To another network, due to the change of network ip address, intelligent terminal needs re-recognize the network after switching, switch
It can not just be carried out after the connection switching of preceding foundation, ongoing file download service or Internet phone-calling in handoff procedure
It can interrupt.Therefore, phenomena such as switching of network will cause data-transmission interruptions, delay and packet loss in data transmission procedure is deposited
To influence user experience.
Summary of the invention
The present invention provides a kind of data transmission method for uplink and system, to realize that mobile site communicates in the case where network switching
Connection is not interrupted.
In a first aspect, the embodiment of the invention provides a kind of data transmission method for uplink, comprising:
The Microsoft Loopback Adapter configured in terminal carries out first layer encapsulation to the data to be sent that receive, and by the first layer
The first data packet obtained after encapsulation is sent to network protocol stack, wherein the first layer encapsulation includes by the number to be sent
According to source IP address be set as the static ip address of the Microsoft Loopback Adapter, set the purpose IP address of the data to be sent to
Receiving end IP address；
The network protocol stack carries out second layer encapsulation to first data packet, and will obtain after second layer encapsulation
Second data packet is sent to proxy server by current network, wherein the second layer encapsulation includes by first data
The source IP address of packet is set as the corresponding network interface card IP address of the current network, and the purpose IP address of first data packet is set
It is set to proxy IP address；
The proxy server decapsulates second data packet, obtains first data packet, and will be described
First data packet is sent to the receiving end.
Second aspect, the embodiment of the invention also provides a kind of data Transmission system, which includes configuring in terminal
Microsoft Loopback Adapter, network protocol stack and proxy server, wherein
The Microsoft Loopback Adapter is used to carry out first layer encapsulation to the data to be sent received, and the first layer is encapsulated
The first data packet obtained afterwards is sent to the network protocol stack, wherein the first layer encapsulation includes by the number to be sent
According to source IP address be set as the static ip address of the Microsoft Loopback Adapter, set the purpose IP address of the data to be sent to
Receiving end IP address；
The network protocol stack is used to carry out first data packet second layer encapsulation, and will be after second layer encapsulation
It obtains the second data packet and the proxy server is sent to by current network, wherein the second layer encapsulation includes will be described
The source IP address of first data packet is set as the corresponding network interface card IP address of the current network, by the purpose of first data packet
IP address is set as proxy IP address；
The proxy server is used to decapsulate second data packet, obtains first data packet, and will
First data packet is sent to the receiving end.
The present invention carries out first layer encapsulation to the data to be sent received by the Microsoft Loopback Adapter on mobile terminal, obtains
Source IP address is the static ip address of Microsoft Loopback Adapter, and purpose IP address is the first data packet of receiving end IP address, and by first
Data packet is sent to network protocol stack, and network protocol stack carries out second layer encapsulation to the first data packet received, obtains source IP
Address is the IP address of the corresponding network interface card of current live network, and purpose IP address is proxy server and passes through the second data packet
Current network is sent to proxy server, and the second data packet received is carried out decapsulation to obtain first by proxy server
Data packet, and the first data packet is sent to receiving end, since the source IP address for the first data packet for being sent to receiving end is void
The static ip address of quasi- network interface card, and the static ip address of Microsoft Loopback Adapter immobilizes, therefore during data are sent, even if
Network connection is had switched, also can guarantee that the source IP address for the data packet that receiving end receives is constant, and then ensures Communications service
It does not interrupt, improves data transmission efficiency and quality.
Detailed description of the invention
Fig. 1 is a kind of flow chart for data transmission method for uplink that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow chart of data transmission method for uplink provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of principle framework figure of data transmission method for uplink provided by Embodiment 2 of the present invention；
Fig. 4 is a kind of structure chart for data Transmission system that the embodiment of the present invention three provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is a kind of flow chart for data transmission method for uplink that the embodiment of the present invention one provides, and the present embodiment is applicable to answer
The case where with data transmission is carried out during interprogram communication, this method can by configured in terminal Microsoft Loopback Adapter, network protocol
The data Transmission system of stack and proxy server composition executes, as shown in Figure 1, method specifically comprises the following steps:
The Microsoft Loopback Adapter configured on S110, terminal carries out first layer encapsulation to the data to be sent that receive, and by first
The first data packet obtained after layer encapsulation is sent to network protocol stack.
Wherein, above-mentioned terminal can be the mobile terminals such as mobile phone, computer, configure Microsoft Loopback Adapter at the terminal and add correspondence
Fixation static ip address, Microsoft Loopback Adapter carries out first layer encapsulation, the encapsulation format of use to the data to be sent that receive
For the static ip address for setting the source IP address of data to be sent to Microsoft Loopback Adapter, the purpose IP address of data to be sent is set
It is set to the IP address of receiving end, the first data packet obtained after encapsulation is sent to network protocol stack.
S120, network protocol stack carry out second layer encapsulation to the first data packet, and the second number is obtained after the second layer is encapsulated
Proxy server is sent to by current network according to packet.
Wherein, the encapsulation of the above-mentioned second layer is network protocol stack according to the network currently connected, to the first data packet progress the
Two layers of encapsulation, specifically, if the network currently connected is Wi-Fi network, by the source IP address of the first data packet received
It is set as the IP address of the corresponding WLAN network interface card of current Wi-Fi network, the purpose IP address of the first data packet is set as acting on behalf of
The IP address of server obtains the second data packet after the second layer encapsulates and is sent to agency by the network that present terminal accesses
Server.
S130, proxy server decapsulate the second data packet, obtain the first data packet, and the first data packet is sent out
It send to receiving end.
Proxy server decapsulates the second data packet received, specifically, proxy server receives second
After data packet, the outside one layer IP of the second data packet can be unlocked, obtain the first data packet of internal layer, it is further, above-mentioned
Proxy server carries out network address translation to the first data packet obtained after decapsulation, i.e., by the source IP address of the first data packet
It is rewritten as the IP address of itself, the source IP address of the first data packet is proxy IP address at this time, and destination address is to receive
The first data packet after the rewriting is sent to receiving end by the IP address at end, to complete the data hair in mobile communication process
It send.
Further, the application program in mobile terminal is during establishing TCP connection progress data transmission, if mobile
The network of terminal connection changes, and illustratively, mobile terminal switches to mobile network from the Wi-Fi network currently connected,
At this time since the static ip address of the Microsoft Loopback Adapter configured in terminal immobilizes, i.e. the IP address of data sending terminal remains
It is constant, therefore, in data transmission procedure, IP address bound in the TCP connection of the application maintenance in mobile terminal and
Port always exists, and therefore, the TCP communication of the foundation between application program in mobile terminal will not interrupt, and user is in network
The operations such as Internet phone-calling, the file download that switching front and back carries out will not be interrupted, so as to avoid because of network switching bring number
According to Transmission, postpone the problems such as i.e. packet loss, improves data transmission efficiency and quality.
The technical solution of the present embodiment carries out the to the data to be sent that receive by the Microsoft Loopback Adapter on mobile terminal
One layer of encapsulation, obtains the static ip address that source IP address is Microsoft Loopback Adapter, and purpose IP address is the first number of receiving end IP address
It is sent to network protocol stack according to packet, and by the first data packet, network protocol stack carries out the second layer to the first data packet received
Encapsulation, obtains the IP address that source IP address is the corresponding network interface card of current live network, and purpose IP address is proxy server and will
Second data packet is sent to proxy server by current network, and proxy server unseals the second data packet received
First data packet is sent to receiving end to obtain the first data packet by dress, due to being sent to the first data packet of receiving end
Source IP address be Microsoft Loopback Adapter static ip address, and the static ip address of Microsoft Loopback Adapter immobilizes, therefore sends out in data
During sending, even if having switched network connection, it also can guarantee that the source IP address for the data packet that receiving end receives is constant, in turn
It ensures not interrupting for Communications service, improves data transmission efficiency and quality.
Embodiment two
Fig. 2 is a kind of flow chart of data transmission method for uplink provided by Embodiment 2 of the present invention, and the present embodiment is in above-mentioned implementation
On the basis of example, before the Microsoft Loopback Adapter that configures at the terminal carries out before first layer encapsulation the data to be sent received,
It further include establishing TCP connection between the transmitting terminal and receiving end in terminal to communicate；Data to be sent are sent to virtually by transmitting terminal
Network interface card.As shown in Fig. 2, specifically comprising the following steps:
TCP connection is established between transmitting terminal and receiving end on S210, terminal to communicate.
Specifically, transmitting terminal can refer to the application program on mobile terminal, and referring to Fig. 3, Fig. 3 is that the embodiment of the present invention two mentions
A kind of principle framework figure of the data transmission method for uplink supplied.Firstly, application program (not shown) in mobile terminal 310 and mutually
The receiving end 330 that an IP address in networking is 166.32.65.98 establishes TCP connection communication.
Data to be sent are sent to Microsoft Loopback Adapter by S220, transmitting terminal.
After TCP communication between transmitting terminal and receiving end 330 is established, the application program as transmitting terminal will be to IP address
Data are sent for the receiving end 330 of 166.32.65.98, at this point, by setting default route, by data to be sent according to default
Routing is first sent to Microsoft Loopback Adapter 312.
The Microsoft Loopback Adapter 312 configured on S230, terminal carries out first layer encapsulation to the data to be sent that receive, and by the
The first data packet obtained after one layer of encapsulation is sent to network protocol stack.
Specifically, the static ip address of Microsoft Loopback Adapter is fixed as 10.1.10.2, Microsoft Loopback Adapter 312 receive to
The TCP data of transmission carries out first layer encapsulation, encapsulation format are as follows: 10.1.10.2 is set by the source IP address of data to be sent,
That is the purpose IP address of data to be sent is set 166.32.65.98, i.e. receiving end by the static ip address of Microsoft Loopback Adapter 312
330 IP address, data to be sent obtain the first data packet after the encapsulation of above-mentioned first layer, and the first data packet is from Microsoft Loopback Adapter
312 are sent to network protocol stack.
S240, network protocol stack carry out second layer encapsulation to the first data packet, and the second number is obtained after the second layer is encapsulated
Proxy server is sent to by current network according to packet.
Network protocol stack is according to the network currently connected, and referring to Fig. 3, the net currently connected can be WI-FI network, docking
The first data packet received carries out second layer encapsulation, specifically, setting WLAN network interface card 311 for the source IP address of the first data packet
IP address, specially 192.168.1.5, WLAN network interface card by access internet 340 and proxy server 320 between is counted
According to transmission, it sets the purpose IP address of the first data packet to the IP address of network protocol stack, specially 163.52.48.33, passes through
The second data packet is obtained after crossing above-mentioned second layer encapsulation, the second data packet passes through the Wi-Fi network that current mobile terminal 310 connects
It is sent to proxy server 320.
S250, proxy server decapsulate the second data packet, obtain the first data packet, and the first data packet is sent out
It send to receiving end.
Proxy server 320 is the proxy service software that runs on Linux host, it to the second data packet received into
Row decapsulation obtains the first data packet, i.e. source IP address is 10.1.10.2, and purpose IP address is the data of 166.32.65.98
Packet, the first data packet obtained after decapsulation is carried out network address transfer by proxy server 320, i.e., by above-mentioned first data packet
Source address be rewritten as itself IP address 163.52.48.33, the source IP address of the first data packet after rewriting is
163.52.48.33, the IP of destination is 166.32.65.98, and the first data packet after rewriting passes through the Wi-Fi net currently connected
Network is sent to receiving end 330.
At this point, if mobile terminal switches connected network, illustratively, mobile terminal is from the Wi-Fi net currently connected
Network switches to mobile 4G network, and the 4G network interface card 313 in mobile terminal passes through 350 access to mobile network of mobile core network at this time, by
It immobilizes in the static IP of Microsoft Loopback Adapter 312, i.e., the bound number of the TCP connection communication established between receiving end and transmitting terminal
IP address according to sending port and port is constant, so the TCP connection communication established before and after network switching will not be interrupted.
The technical solution of the present embodiment, an endpoint first in the application program and interconnection in terminal establish TCP communication
It connects, the application program in terminal will send the data to receiving end as transmitting terminal, and application program is bound in communication process
Microsoft Loopback Adapter, since the static ip address of Microsoft Loopback Adapter immobilizes, is answered during transmitting terminal sends data to receiving end
It is always existed with the TCP connection communication established between program bound IP address and port, therefore the network switching the case where
The TCP connection communication originally established down will not be interrupted.
Embodiment three
A kind of structure chart for data Transmission system that Fig. 4 embodiment of the present invention three provides.The executable present invention is any to be implemented
Data transmission method for uplink provided by example, referring to fig. 4, data Transmission system provided in an embodiment of the present invention includes: to configure in terminal
Microsoft Loopback Adapter 410, network protocol stack 420 and proxy server 430.
Wherein, Microsoft Loopback Adapter 410 for carrying out first layer encapsulation to the data to be sent received, and first layer are sealed
The first data packet obtained after dress is sent to network protocol stack, wherein first layer encapsulation includes by the source IP of data to be sent
Location is set as the static ip address of Microsoft Loopback Adapter, sets receiving end IP address for the purpose IP address of data to be sent.
Network protocol stack 420 for carrying out second layer encapsulation to the first data packet, and obtains second after the second layer is encapsulated
Data packet is sent to proxy server by current network, wherein second layer encapsulation includes by the source IP address of the first data packet
It is set as the corresponding network interface card IP address of current network, with being set as proxy server IP by the purpose IP address of the first data packet
Location.
Proxy server 430 obtains the first data packet for decapsulating to the second data packet, and by the first data
Packet is sent to receiving end.
Specifically, above-mentioned decapsulation module 430 is specifically used for: by the static ip address of the Microsoft Loopback Adapter in the first data packet
It is rewritten as the IP address of proxy server, and based on the receiving end IP address in the first data packet, by the first data after rewriting
Packet is sent to receiving end.
The technical solution of the embodiment of the present invention, by the Microsoft Loopback Adapter on mobile terminal to the data to be sent received into
The encapsulation of row first layer, obtains the static ip address that source IP address is Microsoft Loopback Adapter, and purpose IP address is the of receiving end IP address
One data packet, and the first data packet is sent to network protocol stack, network protocol stack carry out the to the first data packet received
Two layers of encapsulation obtain the IP address that source IP address is the corresponding network interface card of current live network, and purpose IP address is proxy server
And the second data packet is sent to proxy server by current network, proxy server carries out the second data packet received
First data packet is sent to receiving end to obtain the first data packet by decapsulation, during data are sent, virtual net
The static ip address of card immobilizes, therefore during data are sent, even if having switched network connection, can also ensure communication
Service is not interrupted.
In the present embodiment, above-mentioned data Transmission system further include: the communication module configured in terminal.
Specifically, the communication module configured in terminal is used for the transmitting terminal in terminal and establishes TCP company between receiving end
Connect letter, wherein transmitting terminal is used to data to be sent being sent to the Microsoft Loopback Adapter.
Data hair provided by any embodiment of the invention can be performed in data Transmission system provided by the embodiment of the present invention
Delivery method has the corresponding functional module of execution method and beneficial effect.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments here, be able to carry out for a person skilled in the art it is various it is apparent variation, again
Adjustment and substitution are without departing from protection scope of the present invention.Therefore, although by above embodiments to the present invention carried out compared with
For detailed description, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, can be with
Including more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (6)
1. a kind of data transmission method for uplink, which is characterized in that the described method includes:
The Microsoft Loopback Adapter configured in terminal carries out first layer encapsulation to the data to be sent received, and the first layer is encapsulated
The first data packet obtained afterwards is sent to network protocol stack, wherein the first layer encapsulation includes by the data to be sent
Source IP address is set as the static ip address of the Microsoft Loopback Adapter, and the purpose IP address of the data to be sent is set as receiving
Hold IP address；
The network protocol stack carries out second layer encapsulation to first data packet, and will obtain second after second layer encapsulation
Data packet is sent to proxy server by current network, wherein the second layer encapsulation includes by first data packet
Source IP address is set as the corresponding network interface card IP address of the current network, sets the purpose IP address of first data packet to
Proxy IP address；
The proxy server decapsulates second data packet, obtains first data packet, and by described first
Data packet is sent to the receiving end.
2. the method according to claim 1, wherein the Microsoft Loopback Adapter configured in terminal is to be sent to what is received
Before data carry out first layer encapsulation, the method also includes:
TCP connection is established between transmitting terminal and the receiving end in terminal to communicate；
The data to be sent are sent to the Microsoft Loopback Adapter by the transmitting terminal.
3. the method according to claim 1, wherein first data packet is sent to by the proxy server
The receiving end, comprising:
The static ip address of Microsoft Loopback Adapter in first data packet is rewritten as the agency service by the proxy server
The IP address of device, and based on the receiving end IP address in first data packet, the first data packet after rewriting is sent to institute
State receiving end.
4. a kind of data Transmission system, which is characterized in that the system comprises the Microsoft Loopback Adapters configured in terminal, network protocol stack
And proxy server, wherein
The Microsoft Loopback Adapter is used to carry out the data to be sent received first layer encapsulation, and will obtain after first layer encapsulation
To the first data packet be sent to the network protocol stack, wherein first layer encapsulation includes by the data to be sent
Source IP address is set as the static ip address of the Microsoft Loopback Adapter, and the purpose IP address of the data to be sent is set as receiving
Hold IP address；
The network protocol stack is used to carry out first data packet second layer encapsulation, and will obtain after second layer encapsulation
Second data packet is sent to the proxy server by current network, wherein the second layer encapsulation includes by described first
The source IP address of data packet is set as the corresponding network interface card IP address of the current network, by the destination IP of first data packet
Location is set as proxy IP address；
The proxy server obtains first data packet, and will be described for decapsulating to second data packet
First data packet is sent to the receiving end.
5. system according to claim 4, which is characterized in that the system also includes:
The communication module configured in the terminal, for by the transmitting terminal in terminal and establishing TCP connection between the receiving end
Communication；
Wherein, the transmitting terminal is used to the data to be sent being sent to the Microsoft Loopback Adapter.
6. system according to claim 4, which is characterized in that the proxy server is specifically used for: by first number
It is rewritten as the IP address of the proxy server according to the static ip address of the Microsoft Loopback Adapter in packet, and is based on first data packet
In receiving end IP address, the first data packet after rewriting is sent to the receiving end.
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| CN201811584413.3A CN109587749B (en) | 2018-12-24 | 2018-12-24 | Data sending method and system |
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| CN201811584413.3A CN109587749B (en) | 2018-12-24 | 2018-12-24 | Data sending method and system |
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| CN109587749B CN109587749B (en) | 2021-04-20 |
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| CN112019559A (en) * | 2020-09-04 | 2020-12-01 | 北京六间房科技有限公司 | Data transmission system |
| CN112838983A (en) * | 2019-11-22 | 2021-05-25 | 斑马智行网络(香港)有限公司 | Data transmission method, system, device, proxy server and storage medium |
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| CN112838983B (en) * | 2019-11-22 | 2023-09-12 | 斑马智行网络(香港)有限公司 | Data transmission method, system, device, proxy server and storage medium |
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| CN109587749B (en) | 2021-04-20 |
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