CN110071783A - A kind of method, apparatus and system of communication - Google Patents
A kind of method, apparatus and system of communication Download PDFInfo
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- CN110071783A CN110071783A CN201910329810.4A CN201910329810A CN110071783A CN 110071783 A CN110071783 A CN 110071783A CN 201910329810 A CN201910329810 A CN 201910329810A CN 110071783 A CN110071783 A CN 110071783A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0057—Block codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0064—Concatenated codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0064—Concatenated codes
- H04L1/0066—Parallel concatenated codes
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Abstract
The embodiment of the present application provides the method, apparatus and system of a kind of communication, is related to field of communication technology.The method is applied to MEC server, and the MEC server is communicated with the car borne gateway on target train, which comprises obtains the first number metadata packet to be sent；According to preset encoding and decoding algorithm, coded treatment is carried out to the first number metadata packet, obtains the second number redundant data packets, second number is less than first number；The first number metadata packet and the second number redundant data packets are sent to the car borne gateway, so that when the car borne gateway receives the sum of the number of metadata and the number of redundant data packets and is at least first number, according to the preset encoding and decoding algorithm, processing is decoded to the metadata packet and redundant data packets that receive, obtains the first number metadata packet.The packet loss of train can be reduced using the application.
Description
Technical field
This application involves field of communication technology, in particular to the method, apparatus and system of a kind of communication.
Background technique
Currently, the passenger on high-speed rail train is for net with the high speed development of mobile Internet and popularizing for high-speed railway
The requirement of network experience is also higher and higher.But quickly due to high-speed rail train running speed, universal up to 350,000 ms/h of (km/
H) more than, therefore, the phenomenon that conventional communication networks usually will appear packet loss or disconnect, cause the web experience of passenger compared with
Difference.For this purpose, technical staff disposes mobile edge calculations (Mobile Edge Computing, MEC) service in each base station respectively
Device, so that Internet service sinks to base station, so as to improve the network service quality of current high-speed rail.
However, still will appear during train driving and when train carries out Handover between base station because losing
Data packet and causing is connected to the network the case where unstable or even network connection disconnects, so that the passenger on train is difficult to obtain high speed
And stable network service.Therefore, a kind of scheme of packet loss for reducing train is needed.
Summary of the invention
In order to solve problems in the prior art, the embodiment of the present application provides the method, apparatus and system of a kind of communication, can
To reduce the packet loss of train.The technical solution is as follows:
In a first aspect, provide a kind of method of communication, the method is applied to MEC server, the MEC server with
Car borne gateway communication on target train, which comprises
Obtain the first number metadata packet to be sent；
According to preset encoding and decoding algorithm, coded treatment is carried out to the first number metadata packet, obtains the second number
Mesh redundant data packets, second number are less than first number；
The first number metadata packet and the second number redundant data packets are sent to the car borne gateway, with
Make when the car borne gateway receives the sum of the number of metadata and the number of redundant data packets and is at least first number,
According to the preset encoding and decoding algorithm, processing is decoded to the metadata packet and redundant data packets that receive, is obtained described
First number metadata packet.
Optionally, the method also includes:
Receive the third number data packet that the car borne gateway is sent；
If in the third number data packet, the sum of number and the number of redundant data packets of metadata packet are at least
First number is decoded processing to the third number data packet, obtains then according to the preset encoding and decoding algorithm
To the first number metadata packet.
Optionally, the preset encoding and decoding algorithm is Hamming code or concatenated code or Turbo code or LDPC code or RS code.
Second aspect provides a kind of method of communication, and the method is applied to the car borne gateway on target train, described
Car borne gateway and MEC server communication, which comprises
Obtain the first number metadata packet to be sent；
According to preset encoding and decoding algorithm, coded treatment is carried out to the first number metadata packet, obtains the second number
Mesh redundant data packets, second number are less than first number；
The first number metadata packet and the second number redundant data packets are sent to the MEC server,
So as to be at least first number when the MEC server receives the sum of the number of metadata and the number of redundant data packets
When, according to the preset encoding and decoding algorithm, processing is decoded to the metadata packet and redundant data packets that receive, obtains institute
State the first number metadata packet.
Optionally, the method also includes:
Receive the third number data packet that the MEC server is sent；
If in the third number data packet, the sum of number and the number of redundant data packets of metadata packet are at least
First number is decoded processing to the third number data packet, obtains then according to the preset encoding and decoding algorithm
To the first number metadata packet.
Optionally, the preset encoding and decoding algorithm is Hamming code or concatenated code or Turbo code or LDPC code or RS code.
The third aspect, provides a kind of device of communication, and described device is applied to MEC server, the MEC server with
Car borne gateway communication on target train, described device include:
Module is obtained, for obtaining the first number metadata packet to be sent；
Coding module, for being carried out at coding to the first number metadata packet according to preset encoding and decoding algorithm
Reason, obtains the second number redundant data packets, and second number is less than first number；
Sending module, for sending the first number metadata packet and second number to the car borne gateway
Redundant data packets, so as to be at least institute when the car borne gateway receives the sum of the number of metadata and the number of redundant data packets
When stating the first number, according to the preset encoding and decoding algorithm, the metadata packet and redundant data packets that receive are decoded
Processing, obtains the first number metadata packet.
Optionally, described device further include:
Receiving module, the third number data packet sent for receiving the car borne gateway；
Decoder module, if in the third number data packet, the number of metadata packet and redundant data packets
The sum of number is at least first number, then according to the preset encoding and decoding algorithm, to the third number data packet
It is decoded processing, obtains the first number metadata packet.
Optionally, the preset encoding and decoding algorithm is Hamming code or concatenated code or Turbo code or LDPC code or RS code.
Fourth aspect provides a kind of device of communication, and described device is applied to the car borne gateway on target train, described
Car borne gateway and MEC server communication, described device include:
Module is obtained, for obtaining the first number metadata packet to be sent；
Coding module, for being carried out at coding to the first number metadata packet according to preset encoding and decoding algorithm
Reason, obtains the second number redundant data packets, and second number is less than first number；
Sending module, for sending the first number metadata packet and second number to the MEC server
A redundant data packets, so that when the MEC server receives the sum of the number of metadata and the number of redundant data packets at least
When for first number, according to the preset encoding and decoding algorithm, the metadata packet and redundant data packets received is carried out
Decoding process obtains the first number metadata packet.
Optionally, described device further include:
Receiving module, the third number data packet sent for receiving the MEC server；
Decoder module, if in the third number data packet, the number of metadata packet and redundant data packets
The sum of number is at least first number, then according to the preset encoding and decoding algorithm, to the third number data packet
It is decoded processing, obtains the first number metadata packet.
Optionally, the preset encoding and decoding algorithm is Hamming code or concatenated code or Turbo code or LDPC code or RS code.
5th aspect, provides a kind of system of communication, which is characterized in that the system comprises any institutes of such as first aspect
The MEC service stated and the car borne gateway as described in second aspect is any.
The embodiment of the present application provides the method, apparatus and system of a kind of communication, and MEC server obtains to be sent first
Number metadata packet.Then, MEC server compiles the first number metadata packet according to preset encoding and decoding algorithm
Code processing, obtains the second number redundant data packets.Wherein, the second number is less than the first number.Later, MEC server is to vehicle
Support grid, which is closed, sends the first number metadata packet and the second number redundant data packets, so that when car borne gateway receives metadata
Number and the sum of the number of redundant data packets when being at least the first number, according to preset encoding and decoding algorithm, to what is received
Metadata packet and redundant data packets are decoded processing, obtain the first number metadata packet.In this way, even if MEC server to
When packet loss occurs for the metadata packet that car borne gateway is sent, car borne gateway still can be to the metadata packet and redundant data received
Packet is decoded processing, whole metadata packets is obtained, to reduce the packet loss of train.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the architecture diagram of communication network provided by the embodiments of the present application；
Fig. 2 is a kind of flow chart of the method for communication provided by the embodiments of the present application；
Fig. 3 is a kind of flow chart of the method for communication provided by the embodiments of the present application；
Fig. 4 is a kind of flow chart of the example one of the method for communication provided by the embodiments of the present application；
Fig. 5 is a kind of flow chart of the example two of the method for communication provided by the embodiments of the present application；
Fig. 6 is a kind of structural schematic diagram of the device of communication provided by the embodiments of the present application；
Fig. 7 is a kind of structural schematic diagram of the device of communication provided by the embodiments of the present application；
Fig. 8 is a kind of structural schematic diagram of the device of communication provided by the embodiments of the present application；
Fig. 9 is a kind of structural schematic diagram of the device of communication provided by the embodiments of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application embodiment party
Formula is described in further detail.
The application provides a kind of method of communication, and this method can be applied to communication network, specifically can be applied to move
MEC server and car borne gateway in dynamic communication network.Fig. 1 is the architecture diagram of communication network provided by the embodiments of the present application.Such as
Shown in Fig. 1, which includes base station, the MEC server being deployed on base station and the vehicle-mounted net being deployed on target train
It closes.Wherein, MEC server is communicated by base station with car borne gateway.
Below in conjunction with specific embodiment, a kind of method of communication provided by the embodiments of the present application is carried out specifically
Bright, this method is applied to MEC server, and MEC server is communicated with the car borne gateway on target train, as shown in Fig. 2, this method
Detailed process it is as follows:
Step 201, the first number metadata packet to be sent is obtained.
In an implementation, when MEC server needs to send data to car borne gateway, MEC server is available to be sent
The first number data packet (namely metadata packet).
It should be noted that MEC server can be to pending when the number of metadata packet to be sent is greater than the first number
Metadata packet is sent to be grouped.Wherein, every group includes the first number metadata packet.
Step 202, according to preset encoding and decoding algorithm, coded treatment is carried out to the first number metadata packet, obtains the
Two number redundant data packets.
Wherein, the second number is less than the first number.
In an implementation, encoding and decoding algorithm can be previously stored in MEC server.Optionally, which calculates
Method can for Hamming code or concatenated code or Turbo code or low-density checksum (Low Density Parity Check,
LDPC) code or reed-solomon (Reed-Solomon, RS) code, or other kinds of encoding and decoding, the embodiment of the present application
It is not construed as limiting.
It, can be according to preset encoding and decoding algorithm, to the first number after MEC server obtains the first number metadata packet
A metadata packet carries out coded treatment, obtains the second number redundant data packets.Wherein, the second number is less than the first number.
Step 203, the first number metadata packet and the second number redundant data packets are sent to car borne gateway, so as to work as
When car borne gateway receives the sum of the number of metadata and the number of redundant data packets at least the first number, according to preset volume
Decoding algorithm is decoded processing to the metadata packet and redundant data packets that receive, obtains the first number metadata packet.
It in an implementation, can be by the first number metadata packet after MEC server obtains the second number redundant data packets
It is sent to car borne gateway together with the second number redundant data packets.In this way, even if the member that MEC server is sent to car borne gateway
When packet loss occurs for data packet, it is at least first when car borne gateway receives the sum of the number of metadata and the number of redundant data packets
When number, still place can be decoded to the metadata packet and redundant data packets that receive according to preset encoding and decoding algorithm
Reason, obtains the first number metadata packet.
Optionally, MEC server can also be decoded processing to the data packet received, obtain metadata packet.In detail
Treatment process it is as follows:
Step 1 receives the third number data packet that car borne gateway is sent.
In an implementation, MEC server receives the third number data packet that car borne gateway is sent.Wherein, the data packet packet
Include metadata packet and redundant data packets.
Step 2, if in third number data packet, the sum of number of the number of metadata packet and redundant data packets is extremely
Processing is decoded to third number data packet then according to preset encoding and decoding algorithm for the first number less, obtains the first number
Mesh metadata packet.
In an implementation, after MEC server receives third number data packet, it can further judge third number number
Whether the sum of number of number and redundant data packets according to metadata packet in packet is greater than or equal to the first number.If third number
In a data packet, the sum of number and the number of redundant data packets of metadata packet are greater than or equal to the first number, then MEC server
Processing can be decoded to third number data packet, obtain the first number metadata according to preset encoding and decoding algorithm
Packet.If in third number data packet, the sum of number of the number of metadata packet and redundant data packets is less than the first number, then
MEC server receives the metadata packet in third number data packet.
The embodiment of the present application provides a kind of method of communication, and MEC server obtains the first number of the first number to be sent
According to packet.Then, MEC server carries out coded treatment to the first number metadata packet, obtains according to preset encoding and decoding algorithm
Second number redundant data packets.Wherein, the second number is less than the first number.Later, MEC server sends the to car borne gateway
One number metadata packet and the second number redundant data packets, so that when car borne gateway receives the number and redundancy of metadata
When the sum of number of data packet is at least the first number, according to preset encoding and decoding algorithm, to the metadata packet that receives and superfluous
Remaining data packet is decoded processing, obtains the first number metadata packet.In this way, even if MEC server is sent to car borne gateway
Metadata packet occur packet loss when, car borne gateway still can be decoded place to the metadata packet and redundant data packets received
Reason, obtains whole metadata packets, to reduce the packet loss of train.
Below in conjunction with specific embodiment, a kind of method of communication provided by the embodiments of the present application is carried out specifically
Bright, this method is applied to the car borne gateway on target train, car borne gateway and MEC server communication, as shown in figure 3, this method
Detailed process it is as follows:
Step 301, the first number metadata packet to be sent is obtained.
In an implementation, when car borne gateway needs to send data to MEC server, car borne gateway is available to be sent
First number data packet (namely metadata packet).
It should be noted that car borne gateway can be to pending when the number of metadata packet to be sent is greater than the first number
Metadata packet is sent to be grouped.Wherein, every group includes the first number metadata packet.
Step 302, according to preset encoding and decoding algorithm, coded treatment is carried out to the first number metadata packet, obtains the
Two number redundant data packets.
Wherein, the second number is less than the first number.
In an implementation, encoding and decoding algorithm can be previously stored in car borne gateway.Optionally, the preset encoding and decoding algorithm
It can be Hamming code or concatenated code or Turbo code or LDPC code or RS code, or other kinds of encoding and decoding, the application are real
Example is applied to be not construed as limiting.
It, can be according to preset encoding and decoding algorithm, to the first number after car borne gateway obtains the first number metadata packet
A metadata packet carries out coded treatment, obtains the second number redundant data packets.Wherein, the second number is less than the first number.
Step 303, the first number metadata packet and the second number redundant data packets are sent to MEC server, so that
When MEC server, which receives the sum of the number of metadata and the number of redundant data packets, is at least the first number, according to default
Encoding and decoding algorithm, processing is decoded to the metadata packet and redundant data packets that receive, obtains the first number metadata
Packet.
It in an implementation, can be by the first number metadata packet after car borne gateway obtains the second number redundant data packets
It is sent to MEC server together with the second number redundant data packets.In this way, even if what car borne gateway was sent to MEC server
When packet loss occurs for metadata packet, it is at least when MEC server receives the sum of the number of metadata and the number of redundant data packets
When the first number, still the metadata packet and redundant data packets that receive can be solved according to preset encoding and decoding algorithm
Code processing, obtains the first number metadata packet.
Optionally, car borne gateway can also be decoded processing to the data packet received, obtain metadata packet.It is detailed
Treatment process is as follows:
Step 1 receives the third number data packet that MEC server is sent.
In an implementation, car borne gateway receives the third number data packet that MEC server is sent.Wherein, the data packet packet
Include metadata packet and redundant data packets.
Step 2, if in third number data packet, the sum of number of the number of metadata packet and redundant data packets is extremely
Processing is decoded to third number data packet then according to preset encoding and decoding algorithm for the first number less, obtains the first number
Mesh metadata packet.
In an implementation, after car borne gateway receives third number data packet, it can further judge third number number
Whether the sum of number of number and redundant data packets according to metadata packet in packet is greater than or equal to the first number.If third number
In a data packet, the sum of number and the number of redundant data packets of metadata packet are greater than or equal to the first number, then car borne gateway
Processing can be decoded to third number data packet, obtain the first number metadata according to preset encoding and decoding algorithm
Packet.If in third number data packet, the sum of number of the number of metadata packet and redundant data packets is less than the first number, then
Car borne gateway receives the metadata packet in third number data packet.
The embodiment of the present application provides a kind of method of communication, and car borne gateway obtains the first number metadata to be sent
Packet.Then, car borne gateway carries out coded treatment to the first number metadata packet according to preset encoding and decoding algorithm, obtains the
Two number redundant data packets.Wherein, the second number is less than the first number.Later, car borne gateway sends first to MEC server
Number metadata packet and the second number redundant data packets, so that when MEC server receives the number and redundancy of metadata
When the sum of number of data packet is at least the first number, according to preset encoding and decoding algorithm, to the metadata packet that receives and superfluous
Remaining data packet is decoded processing, obtains the first number metadata packet.In this way, even if car borne gateway is sent to MEC server
Metadata packet occur packet loss when, MEC server still can be decoded the metadata packet and redundant data packets received
Processing, obtains whole metadata packets, to reduce the packet loss of train.
Fig. 4 is a kind of flow chart of the example one of the method for communication provided by the embodiments of the present application, as shown in figure 4, in detail
Treatment process it is as follows:
Step 401, MEC server obtains the first number metadata packet to be sent.
Step 402, MEC server carries out at coding the first number metadata packet according to preset encoding and decoding algorithm
Reason, obtains the second number redundant data packets.
Wherein, the second number is less than the first number.
Step 403, MEC server sends the first number metadata packet and the second number redundant data to car borne gateway
Packet.
Step 404, car borne gateway receives the third number data packet that MEC server is sent.
Step 405, if in third number data packet, the sum of number of the number of metadata packet and redundant data packets is extremely
It is less the first number, then car borne gateway is decoded processing to third number data packet, obtains according to preset encoding and decoding algorithm
To the first number metadata packet.
The treatment process of step 401 to step 405 is similar to step 303 with step 201 to step 203 and step 301,
Details are not described herein again.
Fig. 5 is a kind of flow chart of the example two of the method for communication provided by the embodiments of the present application, as shown in figure 5, in detail
Treatment process it is as follows:
Step 501, car borne gateway obtains the first number metadata packet to be sent.
Step 502, car borne gateway carries out at coding the first number metadata packet according to preset encoding and decoding algorithm
Reason, obtains the second number redundant data packets.
Wherein, the second number is less than the first number.
Step 503, car borne gateway sends the first number metadata packet and the second number redundant data to MEC server
Packet.
Step 504, MEC server receives the third number data packet that car borne gateway is sent.
Step 505, if in third number data packet, the sum of number of the number of metadata packet and redundant data packets is extremely
It is less the first number, then MEC server is decoded processing to third number data packet according to preset encoding and decoding algorithm,
Obtain the first number metadata packet.
The treatment process of step 501 to step 505 is similar to step 303 with step 201 to step 203 and step 301,
Details are not described herein again.
Based on the same technical idea, as shown in fig. 6, the embodiment of the present application also provides a kind of device of communication, the dress
It sets and is applied to MEC server, MEC server is communicated with the car borne gateway on target train, which includes:
Module 610 is obtained, for obtaining the first number metadata packet to be sent；
Coding module 620, for being carried out at coding to the first number metadata packet according to preset encoding and decoding algorithm
Reason, obtains the second number redundant data packets, the second number is less than the first number；
Sending module 630, for sending the first number metadata packet and the second number redundant data to car borne gateway
Packet, so that when car borne gateway receives the sum of the number of metadata and the number of redundant data packets and is at least the first number, root
According to preset encoding and decoding algorithm, processing is decoded to the metadata packet and redundant data packets that receive, obtains the first number
Metadata packet.
Optionally, as shown in fig. 7, the device further include:
Receiving module 640, for receiving the third number data packet of car borne gateway transmission；
Decoder module 650, if in third number data packet, the number of metadata packet and the number of redundant data packets
The sum of mesh is at least the first number and is decoded processing then according to preset encoding and decoding algorithm to third number data packet, obtains
To the first number metadata packet.
Optionally, preset encoding and decoding algorithm is Hamming code or concatenated code or Turbo code or low-density checksum LDPC
Code or reed-solomon RS code.
The embodiment of the present application provides a kind of device of communication, and MEC server obtains the first number of the first number to be sent
According to packet.Then, MEC server carries out coded treatment to the first number metadata packet, obtains according to preset encoding and decoding algorithm
Second number redundant data packets.Wherein, the second number is less than the first number.Later, MEC server sends the to car borne gateway
One number metadata packet and the second number redundant data packets, so that when car borne gateway receives the number and redundancy of metadata
When the sum of number of data packet is at least the first number, according to preset encoding and decoding algorithm, to the metadata packet that receives and superfluous
Remaining data packet is decoded processing, obtains the first number metadata packet.In this way, even if MEC server is sent to car borne gateway
Metadata packet occur packet loss when, car borne gateway still can be decoded place to the metadata packet and redundant data packets received
Reason, obtains whole metadata packets, to reduce the packet loss of train.
Based on the same technical idea, as shown in figure 8, the embodiment of the present application also provides a kind of device of communication, the dress
The car borne gateway being applied on target train, car borne gateway and MEC server communication are set, which includes:
Module 810 is obtained, for obtaining the first number metadata packet to be sent；
Coding module 820, for being carried out at coding to the first number metadata packet according to preset encoding and decoding algorithm
Reason, obtains the second number redundant data packets, the second number is less than the first number；
Sending module 830, for sending the first number metadata packet and the second number redundant data to MEC server
Packet, so that when MEC server receives the sum of the number of metadata and the number of redundant data packets and is at least the first number, root
According to preset encoding and decoding algorithm, processing is decoded to the metadata packet and redundant data packets that receive, obtains the first number
Metadata packet.
Optionally, as shown in figure 9, the device further include:
Receiving module 840, for receiving the third number data packet of MEC server transmission；
Decoder module 850, if in third number data packet, the number of metadata packet and the number of redundant data packets
The sum of mesh is at least the first number and is decoded processing then according to preset encoding and decoding algorithm to third number data packet, obtains
To the first number metadata packet.
Optionally, preset encoding and decoding algorithm is Hamming code or concatenated code or Turbo code or LDPC code or RS code.
The embodiment of the present application provides a kind of device of communication, and car borne gateway obtains the first number metadata to be sent
Packet.Then, car borne gateway carries out coded treatment to the first number metadata packet according to preset encoding and decoding algorithm, obtains the
Two number redundant data packets.Wherein, the second number is less than the first number.Later, car borne gateway sends first to MEC server
Number metadata packet and the second number redundant data packets, so that when MEC server receives the number and redundancy of metadata
When the sum of number of data packet is at least the first number, according to preset encoding and decoding algorithm, to the metadata packet that receives and superfluous
Remaining data packet is decoded processing, obtains the first number metadata packet.In this way, even if car borne gateway is sent to MEC server
Metadata packet occur packet loss when, MEC server still can be decoded the metadata packet and redundant data packets received
Processing, obtains whole metadata packets, to reduce the packet loss of train.
Based on the same technical idea, the embodiment of the present application also provides a kind of system of communication, which includes above-mentioned
MEC service and above-mentioned car borne gateway.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely the preferred embodiments of the application, not to limit the application, it is all in spirit herein and
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this application.
Claims (13)
1. a kind of method of communication, which is characterized in that the method is applied to mobile edge calculations MEC server, the MEC clothes
Business device is communicated with the car borne gateway on target train, which comprises
Obtain the first number metadata packet to be sent；
According to preset encoding and decoding algorithm, coded treatment is carried out to the first number metadata packet, obtains the second number
Redundant data packets, second number are less than first number；
The first number metadata packet and the second number redundant data packets are sent to the car borne gateway, so as to work as
The car borne gateway receive the sum of the number of metadata and the number of redundant data packets be at least first number when, according to
The preset encoding and decoding algorithm is decoded processing to the metadata packet and redundant data packets that receive, obtains described first
Number metadata packet.
2. the method according to claim 1, wherein the method also includes:
Receive the third number data packet that the car borne gateway is sent；
If in the third number data packet, the sum of number and the number of redundant data packets of metadata packet are at least described
First number is decoded processing to the third number data packet, obtains institute then according to the preset encoding and decoding algorithm
State the first number metadata packet.
3. method according to claim 1 or 2, which is characterized in that the preset encoding and decoding algorithm is Hamming code or grade
Join code or Turbo code or low-density checksum LDPC code or reed-solomon RS code.
4. a kind of method of communication, which is characterized in that the method is applied to the car borne gateway on target train, the vehicle-mounted net
It closes and mobile edge calculations MEC server communication, which comprises
Obtain the first number metadata packet to be sent；
According to preset encoding and decoding algorithm, coded treatment is carried out to the first number metadata packet, obtains the second number
Redundant data packets, second number are less than first number；
The first number metadata packet and the second number redundant data packets are sent to the MEC server, so that
When the MEC server, which receives the sum of the number of metadata and the number of redundant data packets, is at least first number,
According to the preset encoding and decoding algorithm, processing is decoded to the metadata packet and redundant data packets that receive, is obtained described
First number metadata packet.
5. according to the method described in claim 4, it is characterized in that, the method also includes:
Receive the third number data packet that the MEC server is sent；
If in the third number data packet, the sum of number and the number of redundant data packets of metadata packet are at least described
First number is decoded processing to the third number data packet, obtains institute then according to the preset encoding and decoding algorithm
State the first number metadata packet.
6. method according to claim 4 or 5, which is characterized in that the preset encoding and decoding algorithm is Hamming code or grade
Join code or Turbo code or low-density checksum LDPC code or reed-solomon RS code.
7. a kind of device of communication, which is characterized in that described device is applied to mobile edge calculations MEC server, the MEC clothes
Business device is communicated with the car borne gateway on target train, and described device includes:
Module is obtained, for obtaining the first number metadata packet to be sent；
Coding module, for carrying out coded treatment to the first number metadata packet, obtaining according to preset encoding and decoding algorithm
To the second number redundant data packets, second number is less than first number；
Sending module, for sending the first number metadata packet and the second number redundancy to the car borne gateway
Data packet, so as to be at least described the when the car borne gateway receives the sum of the number of metadata and the number of redundant data packets
When one number, according to the preset encoding and decoding algorithm, processing is decoded to the metadata packet and redundant data packets that receive,
Obtain the first number metadata packet.
8. device according to claim 7, which is characterized in that described device further include:
Receiving module, the third number data packet sent for receiving the car borne gateway；
Decoder module, if in the third number data packet, the number of metadata packet and the number of redundant data packets
The sum of be at least first number, then according to the preset encoding and decoding algorithm, to third number data packet progress
Decoding process obtains the first number metadata packet.
9. device according to claim 7 or 8, which is characterized in that the preset encoding and decoding algorithm is Hamming code or grade
Join code or Turbo code or low-density checksum LDPC code or reed-solomon RS code.
10. a kind of device of communication, which is characterized in that described device is applied to the car borne gateway on target train, described vehicle-mounted
Gateway and mobile edge calculations MEC server communication, described device include:
Module is obtained, for obtaining the first number metadata packet to be sent；
Coding module, for carrying out coded treatment to the first number metadata packet, obtaining according to preset encoding and decoding algorithm
To the second number redundant data packets, second number is less than first number；
Sending module, for superfluous to MEC server transmission the first number metadata packet and second number
Remaining data packet, so as to be at least institute when the MEC server receives the sum of the number of metadata and the number of redundant data packets
When stating the first number, according to the preset encoding and decoding algorithm, the metadata packet and redundant data packets that receive are decoded
Processing, obtains the first number metadata packet.
11. device according to claim 10, which is characterized in that described device further include:
Receiving module, the third number data packet sent for receiving the MEC server；
Decoder module, if in the third number data packet, the number of metadata packet and the number of redundant data packets
The sum of be at least first number, then according to the preset encoding and decoding algorithm, to third number data packet progress
Decoding process obtains the first number metadata packet.
12. device described in 0 or 11 according to claim 1, which is characterized in that the preset encoding and decoding algorithm be Hamming code or
Concatenated code or Turbo code or low-density checksum LDPC code or reed-solomon RS code.
13. a kind of system of communication, which is characterized in that the system comprises mobile edges a method according to any one of claims 1-3
Calculate MEC service and the car borne gateway as described in claim 4-6 is any.
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