CN115174159A - Communication model, data transmission method and device, and communication model configuration method - Google Patents
Communication model, data transmission method and device, and communication model configuration method Download PDFInfo
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- CN115174159A CN115174159A CN202210674694.1A CN202210674694A CN115174159A CN 115174159 A CN115174159 A CN 115174159A CN 202210674694 A CN202210674694 A CN 202210674694A CN 115174159 A CN115174159 A CN 115174159A
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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
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/16—Implementing security features at a particular protocol layer
Abstract
The invention provides a communication model, a data transmission method and device and a communication model configuration method, wherein the communication model comprises the following steps: an application layer for inputting or outputting communication data; the capacity expansion layer is used for carrying out data transmission with the application layer based on capacity expansion primitives under the condition that the length of a data packet in the application layer exceeds the data capacity; the flash layer comprises any one of: a newly added protocol stack; and splitting the protocol stack from the application layer. The communication model, the data transmission method and device and the communication model configuration method provided by the invention improve the upper limit of the capacity of the transmission data and increase the flexibility of the transmission data.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a communication model, a data transmission method and device and a communication model configuration method.
Background
With the updating of equipment, the safety data are more and more, and when different safety signal equipment in the operation of a train communicates, the length of the real-time safety data is limited by using a traditional RSSP-I protocol, so that the increasing safety requirements cannot be met more and more.
In the prior art, although the RSSP-I protocol can meet the requirement of safe transmission, the size of real-time safety data in the protocol needs to be smaller than 546bytes, the size of practical application data is only 480bytes at most, and the protocol cannot meet the requirement of safe running of trains in the future of information explosion.
Disclosure of Invention
The invention provides a communication model, a data transmission method and device and a communication model configuration method, which are used for solving the technical problem that the data capacity is limited during data transmission in the prior art.
The invention provides a communication model, comprising:
an application layer for inputting or outputting communication data;
the capacity expansion layer is used for carrying out data transmission with the application layer based on capacity expansion primitives under the condition that the length of a data packet in the application layer exceeds the data capacity;
the flash layer comprises any one of:
a newly added protocol stack;
and splitting the protocol stack from the application layer.
The invention also provides a data transmission method, which is applied to the communication model, and under the condition that the capacity expansion layer is a newly added protocol stack, the method comprises the following steps:
under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, obtaining a first data packet, outputting a first capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
under the condition that the first data packet received by the capacity expansion layer of the second terminal is determined to be a capacity expansion packet, outputting a first capacity expansion indication primitive to an application layer of the second terminal;
under the condition that the application layer of the second terminal is determined to receive the first capacity expansion indication primitive, outputting a first capacity expansion response primitive to a capacity expansion layer of the second terminal;
and under the condition that the first terminal is determined to receive the receipt message of the second terminal, outputting a first expansion confirmation primitive to an application layer of the first terminal.
The present invention further provides a data transmission method applied to the communication model, where in the case that the capacity expansion layer is a protocol stack split from the application layer, the method includes:
under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, obtaining a first data packet, outputting a second capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
and under the condition that the first data packet received by the capacity expansion layer of the second terminal is determined to be a capacity expansion packet, outputting a second capacity expansion indication primitive to the application layer of the second terminal.
In some embodiments, the communication model further comprises a security layer for securing data transmission;
the method further comprises the following steps:
judging whether a second data packet received by a security layer of the second terminal is a repeated packet or not, wherein the second data packet is a data packet except the first data packet in the target data packet;
after the outputting the second capacity expansion indication primitive to the application layer of the second terminal is performed under the condition that it is determined that the second data packet received by the security layer of the second terminal is a non-duplicate packet, the method further includes:
and splicing the first data packet and the second data packet.
The invention provides a communication model configuration method, which comprises the following steps:
adding a capacity expansion layer between an application layer and a communication layer, wherein the application layer and the capacity expansion layer carry out data transmission based on capacity expansion primitives;
adding a judgment function in the application layer, wherein the judgment function is used for judging whether the length of the data packet exceeds the data capacity;
and newly adding a check function in the capacity expansion layer, wherein the check function is used for checking whether the data packet is a capacity expansion packet.
The invention provides a data transmission device, which is applied to the communication model, and under the condition that the capacity expansion layer is a newly added protocol stack, the device comprises:
the first transmission module is used for obtaining a first data packet under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, outputting a first capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
a second transmission module, configured to output a first capacity expansion indication primitive to an application layer of the second terminal when it is determined that the first data packet received by the capacity expansion layer of the second terminal is a capacity expansion packet;
a third transmission module, configured to output a first capacity expansion response primitive to a capacity expansion layer of the second terminal when it is determined that the application layer of the second terminal receives the first capacity expansion indication primitive;
and a fourth transmission module, configured to output the first extended validation primitive to an application layer of the first terminal when it is determined that the first terminal receives the receipt message of the second terminal.
The invention provides a data transmission device, which is applied to the communication model, and under the condition that the capacity expansion layer is a protocol stack split from the application layer, the device comprises:
a fifth transmission module, configured to, when it is determined that a length of a target data packet output by an application layer of a first terminal exceeds the data capacity, obtain a first data packet, output a second capacity expansion request primitive to a capacity expansion layer of the first terminal, and input the first data packet to a capacity expansion layer of a second terminal, where the first data packet is a data packet obtained by dividing the target data packet;
a sixth transmission module, configured to output a second expansion indication primitive to an application layer of the second terminal when it is determined that the first data packet received by the expansion layer of the second terminal is an expansion packet.
The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the data transmission methods or the communication model configuration methods when executing the program.
The present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the data transmission method or the communication model configuration method as any of the above.
The invention also provides a computer program product comprising a computer program which, when executed by a processor, implements the data transmission method or the communication model configuration method as described in any of the above.
According to the communication model, the data transmission method and device and the communication model configuration method, the problem that the data length is limited in the existing transmission process can be solved by arranging the capacity expansion layer, the data capacity of real-time transmission can be expanded, and the flexibility of data transmission is improved.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a communication model provided by the present invention;
FIG. 2 is a second schematic structural diagram of a communication model provided in the present invention;
FIG. 3 is a flow chart of a data transmission method according to the present invention;
FIG. 4 is a second flowchart of a data transmission method according to the present invention;
FIG. 5 is a flow chart illustrating a communication model configuration method provided by the present invention;
FIG. 6 is a schematic structural diagram of a data transmission apparatus provided in the present invention;
FIG. 7 is a second schematic structural diagram of a data transmission device according to the present invention;
fig. 8 is a schematic structural diagram of a communication model configuration apparatus provided in the present invention;
fig. 9 is a schematic physical structure diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Fig. 1 is one of the schematic structural diagrams of the communication model provided by the present invention. Referring to fig. 1, an embodiment of the present invention provides a communication model, which may include: an application layer and a capacity expansion layer.
The application layer is used for inputting or outputting communication data;
the capacity expansion layer is used for carrying out data transmission with the application layer based on capacity expansion primitives under the condition that the length of a data packet in the application layer exceeds the data capacity;
in practical implementation, the communication model provided by the invention can be applied to Railway Signal Safety communication protocols, such as Railway Signal Safety protocol I (RSSP-I) and Railway Signal Safety protocol ii (RSSP-ii).
The communication model provided by this embodiment will be described by taking RSSP-I structure as an example. As shown in fig. 1, RSSP-I has a legacy structure of an application layer, a security layer, and a communication layer.
The application layer can be used for inputting or outputting communication data interacted between the vehicle-mounted equipment and the ground equipment;
the security layer can adopt a secure transmission protocol to ensure the information security of the communication data and the transmission security of the communication data. For example: by adopting the RSSP-I security protocol mechanism, the security layer can realize the protection of communication threats in the transmission system.
The communication layer may include other layers than an application layer in an Open System Interconnection Reference Model (OSI). The communication layer may provide untrusted transmissions and may implement the following functions: adaptation of a physical transport layer; a redundancy handling function of the communication link; monitoring the channel availability, and reporting to an external system by an application layer; reliable, transparent and bidirectional transmission of data, etc.
In some embodiments, the application layer may perform related functions of the railway communication system, such as line data, temporary speed limit information, etc.; the safety layer adopts a safety transmission protocol to ensure the information safety of the vehicle-ground communication data and the transmission safety of the vehicle-ground communication data. The communication layer is responsible for providing transparent and reliable transmission of data messages, providing forward error correction capability of the messages, or transmitting bit streams on a bottom layer wireless channel, encoding and decoding information source channels, modulating and demodulating wireless data, sending and receiving signals and the like.
In some embodiments, the communication model provided in the embodiments of the present invention further includes a capacity expansion layer. The capacity expansion layer is a newly added protocol stack or a protocol stack split from the application layer.
In the case that the capacity expansion layer is the newly added protocol stack, the communication model provided in the embodiment of the present invention is shown in fig. 1. Namely, an expansion layer parallel to the security layer is newly added between the communication layer and the application layer.
In the case that the capacity expansion layer is a protocol stack split from the application layer, the communication model provided by the present invention is shown in fig. 2. It is understood that a part of the application layer is used as the capacity expansion layer, that is, the application layer is divided into the sub-application layer and the capacity expansion layer.
Adding a capacity expansion primitive between the application layer and the capacity expansion layer, where the capacity expansion primitive may include: the system comprises a capacity expansion request primitive, a capacity expansion indication primitive, a capacity expansion response primitive and a capacity expansion confirmation primitive.
In computers, primitives are divided into four categories: a request (Req) type primitive for a higher layer to request a certain service to a lower layer; a response (Res) type primitive for responding, indicating that an indication primitive from a higher layer has been received; indication (Ind) type primitives for the service providing layer reporting to higher layers an action related to a specific service; a validation (Cfm) type primitive, the layer that provides the service validates that some action has been completed.
The capacity expansion layer can realize the capacity expansion of communication data of different safety signal devices. The embodiment of the invention not only can meet the transmission of a large amount of real-time safety data, but also can not influence the existing structure corresponding to the railway signal safety communication protocol as far as possible, thereby ensuring the railway signal safety communication.
It should be noted that the OSI model is a conceptual model, proposed by the international organization for standardization, a standard framework that attempts to interconnect various computers as networks worldwide. OSI divides the computer network architecture into the following seven layers: physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and application layer.
The physical layer provides the mechanical, electrical, functional and procedural conditions for establishing, maintaining and breaking a physical connection.
The data link layer is used for establishing, maintaining and removing link connection, and the function of error-free transmission is realized.
The network layer specifies protocols for the establishment, maintenance and teardown of network connections.
The transport layer is used for data transfer control between open systems. The main function is to open the transmission/reception confirmation of data between systems.
The session layer enables the data transfer function to be efficiently performed between the open systems by means of the communication function below the transport layer.
The presentation layer is used to transform the information provided by the application layer into a commonly understood form, providing a unified presentation of character codes, data formats, control information formats, encryption, and the like.
The application layer is used for realizing information exchange between application processes.
The communication model provided by the invention can solve the problem of limited data length in the existing transmission process by arranging the capacity expansion layer, can expand the data capacity of real-time transmission, and increases the flexibility of data transmission.
Fig. 3 is a flowchart illustrating a data transmission method according to an embodiment of the present invention.
Referring to fig. 3, in a case that the capacity expansion layer is a newly added protocol stack, an embodiment of the present invention may provide a data transmission method, which may include the following steps:
The first terminal is a data output end, and the second terminal is a data input end. And the first terminal outputs data and then inputs the data to the second terminal.
The structures of the data input end and the data output end can be structures corresponding layer by layer, and in this embodiment, the data input end and the data output end have the same communication model. For example: data of the application layer in the data output end can be transmitted to the application layer in the data input end, and data of the security layer in the data output end can be transmitted to the security layer in the data input end.
The layers of the data input end and the data output end adopt a preset interface protocol for data transmission, and the data transmission is not limited specifically herein. Examples may include:
the same application layer protocol is adopted between the application layer of the data input end and the application layer of the data output end, and a safety protocol mechanism is adopted between the safety layer of the data input end and the safety layer of the data output end.
The execution main body of the data transmission method provided by the invention can be electronic equipment, a component in the electronic equipment, an integrated circuit or a chip. The electronic device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), and the like, and the present invention is not limited in particular.
The following describes the technical solution of the present invention in detail by taking a computer as an example to execute the data transmission method provided by the present invention.
In actual execution, a judgment function is written in an application layer of a data output end, when the length of a target data packet output by the application layer of the data output end exceeds a limit, the target data packet is segmented, and a first capacity expansion request primitive is output to a capacity expansion layer of the data output end, so that the output of the capacity expansion layer of the data output end is increased.
The data capacity of the data packet may be determined according to the actual situation of the communication model, and is not limited in particular.
It can be understood that, the dividing of the target packet may be dividing a portion exceeding the data capacity of the application layer to obtain a first packet; the first packet may be obtained by freely dividing the packet according to the specification of the communication protocol. The first data packet is a data packet which is divided from the target data packet and is output through the capacity expansion layer of the data output end. The part of the target data packet except the first data packet is still output through the application layer.
When the capacity expansion layer of the data input end receives the first data packet, whether the received data packet is a repeated packet or a capacity expansion packet is judged through the check function. In case it is determined that the first data packet is an extension packet, a first extension indication primitive is output to an application layer of the data input. If the packet is a duplicate packet, the duplicate packet may be discarded.
When a security layer of the data input end receives a data packet, whether the received data packet is a non-repetitive packet or not is judged through a check function. If the packet is a non-duplicate packet, the data transmission is continued. If the packet is a duplicate packet, the duplicate packet may be discarded.
And the application layer of the data input end receives the first capacity expansion indication primitive and outputs a first capacity expansion response primitive to the capacity expansion layer of the data input end.
And when the data output end receives the receipt information of the data input end, outputting a first capacity expansion confirmation primitive to the application layer of the data output end. Wherein the receipt information is used to indicate whether the data transmission is completed.
According to the data transmission method provided by the invention, the problem of limited data in the existing transmission process is solved by adding the capacity expansion layer, and the data capacity of real-time transmission can be expanded; meanwhile, a capacity expansion request primitive, a capacity expansion indication primitive, a capacity expansion response primitive and a capacity expansion confirmation primitive are added, the original security layer is assisted to carry out data transmission, and the flexibility of data transmission is improved.
Fig. 4 is a second flowchart of the data transmission method provided by the present invention.
Referring to fig. 4, in a case that the capacity expansion layer is a protocol stack split from the application layer, an embodiment of the present invention may provide a data transmission method, which may include the following steps:
The first terminal is a data output end, and the second terminal is a data input end. And the first terminal outputs data and then inputs the data to the second terminal.
The structures of the data input end and the data output end can be structures corresponding layer by layer, and in this embodiment, the data input end and the data output end have the same communication model.
The execution main body of the data transmission method provided by the invention can be electronic equipment, a component in the electronic equipment, an integrated circuit or a chip. The electronic device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), and the like, which is not limited in the present disclosure.
The following describes the technical solution of the present invention in detail by taking a computer as an example to execute the data transmission method provided by the present invention.
In actual execution, a judgment function is written in an application layer of a data output end, and when the length of a target data packet output by the application layer of the data output end exceeds a limit, the target data packet is segmented.
Since RSSP-I is User Datagram Protocol (UDP) transmission, and in this embodiment, a part of the application layer is used as the capacity expansion layer, only the capacity expansion request primitive and the capacity expansion indication primitive are used
In actual execution, a judgment function is written in an application layer of a data output end, when the length of a target data packet output by the application layer of the data output end exceeds a limit, the target data packet is segmented, and a second capacity expansion request primitive is output to a capacity expansion layer of the data output end, so that the output of the capacity expansion layer of the data output end is increased.
The data capacity of the data packet may be determined according to the actual situation of the communication model, and is not limited in particular.
It can be understood that, the dividing of the target packet may be dividing a portion exceeding the data capacity of the application layer to obtain a first packet; the first packet may be obtained by freely dividing the packet according to the specification of the communication protocol. The first data packet is a data packet which is divided from the target data packet and is output through the capacity expansion layer of the data output end. The part of the target data packet except the first data packet is still output through the application layer.
When the capacity expansion layer of the data input end receives the first data packet, whether the received data packet is a repeated packet or a capacity expansion packet is judged through the check function. In case it is determined that the first data packet is an extension packet, a second extension indication primitive is output to the application layer of the data input.
According to the data transmission method provided by the invention, the problem of limited data in the existing transmission process is solved by adding the capacity expansion layer, and the data capacity of real-time transmission can be expanded; meanwhile, a capacity expansion request primitive and a capacity expansion indication primitive are added, the original security layer is assisted to carry out data transmission, and the flexibility of data transmission is improved.
In some embodiments, the communication model further comprises a security layer for securing data transmission. The data transmission method further comprises the following steps:
judging whether a second data packet received by a security layer of a second terminal is a repeated packet or not, wherein the second data packet is a data packet except the first data packet in a target data packet;
after outputting a second capacity expansion indication primitive to the application layer of the second terminal, in a case that it is determined that the second data packet received by the security layer of the second terminal is a non-duplicate packet, the method further includes:
and splicing the first data packet and the second data packet.
When the security layer and the capacity expansion layer of the data input end respectively receive the data packets, the capacity expansion layer receives the first data packet, and the security layer receives the second data packet. The first data packet and the second data packet are obtained by dividing a target data packet at a data output end.
When the security layer of the data input end receives the second data packet, the second data packet is judged based on the check function, whether the second data packet is a repeated packet or not is judged, and if the second data packet is a non-repeated packet, data transmission is continued. If the packet is a duplicate packet, the duplicate packet may be discarded.
And under the condition that the second data packet received by the security layer of the second terminal is determined to be a non-repetitive packet and the first data packet received by the capacity expansion layer of the data input end is determined to be a capacity expansion packet, outputting a capacity expansion indication primitive to the application layer, and splicing the first data packet and the second data packet.
In some embodiments, when the vehicle-mounted device and an Automatic Train Supervision (ATS) device perform mass data transmission, since the application layer is split into the capacity expansion layer and the sub-application layer, during mass data transmission, the information output side first determines whether a packet of the sub-application layer exceeds a limit.
When the limit is exceeded, the data packet in the application layer of the information output party is firstly divided, and a capacity expansion request primitive is output to the capacity expansion layer of the information output party, so that the output of the capacity expansion layer is increased.
And judging whether the data packet received by the security layer of the information input party is a repeated packet or not, and judging whether the data packet received by the capacity expansion layer is a capacity expansion packet or a repeated packet or not. If the data packet received in the security layer is a non-repetitive packet and the data packet received in the capacity expansion layer is a capacity expansion packet, outputting a capacity expansion indication primitive to the sub-application layer, and finally splicing the data packet in the sub-application layer and the data packet in the capacity expansion layer together.
The data transmission method provided by the invention increases the flexibility of data transmission on the basis of not influencing the security of data transmission.
Fig. 5 is a schematic flow chart of a communication model configuration method provided by the present invention.
Referring to fig. 5, an embodiment of the present invention may provide a communication model configuration method, which may include the following steps:
and step 530, adding a new check function in the capacity expansion layer, wherein the check function is used for checking whether the data packet is a capacity expansion packet.
The execution subject of the communication model configuration method provided by the invention can be electronic equipment, a component in the electronic equipment, an integrated circuit or a chip. The electronic device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), and the like, and the present invention is not limited in particular.
The following describes the technical solution of the present invention in detail by taking an example in which a computer executes the communication model configuration method provided by the present invention.
In actual implementation, adding a capacity expansion layer between the application layer and the communication layer may be adding a protocol stack between the application layer and the communication layer to serve as the capacity expansion layer; or a part of the application layer can be used as a capacity expansion layer.
And adding a capacity expansion primitive between the application layer and the capacity expansion layer. The capacity expansion primitive may include a capacity expansion request primitive, a capacity expansion indication primitive, a capacity expansion response primitive, and a capacity expansion confirmation primitive.
Writing a judgment function in an application layer, and when a data packet of the application layer exceeds the data capacity, segmenting the data packet in the application layer.
And respectively adding a check function in the security layer and the capacity expansion layer, and judging whether the data packet is a repeated packet or not when the security layer receives the data packet. When the capacity expansion layer receives the data packet, whether the data packet is a repeated packet or a capacity expansion packet is judged.
The communication model configuration method provided by the invention can enlarge the data capacity of real-time transmission and can solve the problem of limited data capacity in the existing data transmission process.
The data transmission device provided by the present invention is described below, and the data transmission device described below and the data transmission method described above may be referred to correspondingly.
Fig. 6 is a schematic structural diagram of a data transmission device according to the present invention. The present invention may provide a data transmission apparatus, which may include:
a first transmission module 610, configured to, when it is determined that a length of a target data packet output by an application layer of a first terminal exceeds the data capacity, obtain a first data packet, output a first expansion request primitive to an expansion layer of the first terminal, and input the first data packet to an expansion layer of a second terminal, where the first data packet is a data packet obtained by dividing the target data packet;
a second transmission module 620, configured to output a first capacity expansion indication primitive to an application layer of the second terminal when it is determined that the first data packet received by the capacity expansion layer of the second terminal is a capacity expansion packet;
a third transmission module 630, configured to output a first expansion response primitive to the expansion layer of the second terminal when it is determined that the application layer of the second terminal receives the first expansion indication primitive;
a fourth transmission module 640, configured to output the first extended validation primitive to the application layer of the first terminal if it is determined that the first terminal receives the receipt message of the second terminal.
According to the data transmission device provided by the invention, the problem of limited data in the existing transmission process is solved by adding the capacity expansion layer, and the data capacity of real-time transmission can be expanded; meanwhile, a capacity expansion request primitive, a capacity expansion indication primitive, a capacity expansion response primitive and a capacity expansion confirmation primitive are added, the original security layer is assisted to carry out data transmission, and the flexibility of data transmission is improved.
Fig. 7 is a second schematic structural diagram of a data transmission device provided in the present invention. The present invention may provide a data transmission apparatus, which may include:
a fifth transmission module 710, configured to, when it is determined that a length of a target data packet output by an application layer of a first terminal exceeds the data capacity, obtain a first data packet, output a second expansion request primitive to an expansion layer of the first terminal, and input the first data packet to the expansion layer of a second terminal, where the first data packet is a data packet obtained by dividing the target data packet;
a sixth transmission module 720, configured to output a second expansion indication primitive to an application layer of the second terminal when it is determined that the first data packet received by the expansion layer of the second terminal is an expansion packet.
According to the data transmission device provided by the invention, the problem of limited data in the existing transmission process is solved by adding the capacity expansion layer, and the data capacity of real-time transmission can be expanded; meanwhile, a capacity expansion request primitive and a capacity expansion indication primitive are added, the original security layer is assisted to carry out data transmission, and the flexibility of data transmission is improved.
In some embodiments, the communication model further comprises a security layer for securing data transmission;
the device further comprises:
a seventh transmission module, configured to determine whether a second data packet received by a security layer of the second terminal is a duplicate packet, where the second data packet is a data packet other than the first data packet in the target data packet;
after outputting a second expansion indication primitive to an application layer of the second terminal, when it is determined that the second data packet received by the security layer of the second terminal is a non-duplicate packet, the method further includes:
and splicing the first data packet and the second data packet.
The following describes a communication model configuration apparatus provided by the present invention, and the communication model configuration apparatus described below and the communication model configuration method described above may be referred to correspondingly.
Fig. 8 is a schematic structural diagram of a communication model configuration apparatus provided in the present invention. The present invention may provide a communication model configuration apparatus, which may include:
a first configuration module 810, configured to add a capacity expansion layer between an application layer and a communication layer, where the application layer and the capacity expansion layer perform data transmission based on a capacity expansion primitive;
a second configuration module 820, configured to add a judgment function in the application layer, where the judgment function is used to judge whether a packet length exceeds a data capacity;
a third configuration module 830, configured to add a check function in the expansion layer, where the check function is used to check whether the data packet is an expansion packet.
The communication model configuration device provided by the invention can enlarge the data capacity of real-time transmission and can solve the problem of limited data capacity in the existing data transmission process.
Fig. 9 illustrates a physical structure diagram of an electronic device, and as shown in fig. 9, the electronic device may include: a processor (processor) 910, a communication Interface (Communications Interface) 920, a memory (memory) 930, and a communication bus 940, wherein the processor 910, the communication Interface 920, and the memory 930 are coupled for communication via the communication bus 940. The processor 910 may call logic instructions in the memory 930 to perform a data transfer method, where the capacity expansion layer is a newly added protocol stack, the method comprising:
under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, obtaining a first data packet, outputting a first capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
under the condition that the first data packet received by the capacity expansion layer of the second terminal is determined to be a capacity expansion packet, outputting a first capacity expansion indication primitive to an application layer of the second terminal;
under the condition that the application layer of the second terminal is determined to receive the first capacity expansion indication primitive, outputting a first capacity expansion response primitive to a capacity expansion layer of the second terminal;
and under the condition that the first terminal is determined to receive the receipt message of the second terminal, outputting a first expansion confirmation primitive to an application layer of the first terminal.
Or under the condition that the capacity expansion layer is a newly added protocol stack, the method comprises the following steps:
under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, obtaining a first data packet, outputting a second capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
and under the condition that the first data packet received by the capacity expansion layer of the second terminal is determined to be a capacity expansion packet, outputting a second capacity expansion indication primitive to the application layer of the second terminal.
Or performing a communication model configuration method, the method comprising:
adding a capacity expansion layer between an application layer and a communication layer, wherein the application layer and the capacity expansion layer carry out data transmission based on capacity expansion primitives;
a judgment function is newly added in the application layer, and the judgment function is used for judging whether the length of the data packet exceeds the data capacity;
and newly adding a check function in the capacity expansion layer, wherein the check function is used for checking whether the data packet is a capacity expansion packet.
Furthermore, the logic instructions in the memory 930 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention further provides a computer program product, where the computer program product includes a computer program, the computer program may be stored on a non-transitory computer-readable storage medium, and when the computer program is executed by a processor, the computer is capable of executing the data transmission method provided by the foregoing methods, where in a case where the capacity expansion layer is an added protocol stack, the method includes:
under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, obtaining a first data packet, outputting a first capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
under the condition that the first data packet received by the capacity expansion layer of the second terminal is determined to be a capacity expansion packet, outputting a first capacity expansion indication primitive to an application layer of the second terminal;
under the condition that the application layer of the second terminal is determined to receive the first capacity expansion indication primitive, outputting a first capacity expansion response primitive to a capacity expansion layer of the second terminal;
and under the condition that the first terminal is determined to receive the receipt message of the second terminal, outputting a first expansion confirmation primitive to an application layer of the first terminal.
Or under the condition that the capacity expansion layer is a newly added protocol stack, the method comprises the following steps:
under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, obtaining a first data packet, outputting a second capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
and under the condition that the first data packet received by the capacity expansion layer of the second terminal is determined to be a capacity expansion packet, outputting a second capacity expansion indication primitive to the application layer of the second terminal.
Or performing a communication model configuration method, the method comprising:
adding a capacity expansion layer between an application layer and a communication layer, wherein the application layer and the capacity expansion layer carry out data transmission based on capacity expansion primitives;
adding a judgment function in the application layer, wherein the judgment function is used for judging whether the length of the data packet exceeds the data capacity;
and newly adding a check function in the capacity expansion layer, wherein the check function is used for checking whether the data packet is a capacity expansion packet.
In another aspect, the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the data transmission method provided by the foregoing methods when executed by a processor, and in a case where the capacity expansion layer is a newly added protocol stack, the method includes:
under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, obtaining a first data packet, outputting a first capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
under the condition that the first data packet received by the capacity expansion layer of the second terminal is determined to be a capacity expansion packet, outputting a first capacity expansion indication primitive to an application layer of the second terminal;
under the condition that the application layer of the second terminal is determined to receive the first capacity expansion indication primitive, outputting a first capacity expansion response primitive to a capacity expansion layer of the second terminal;
and under the condition that the first terminal is determined to receive the receipt message of the second terminal, outputting a first expansion confirmation primitive to an application layer of the first terminal.
Or under the condition that the capacity expansion layer is a newly added protocol stack, the method comprises the following steps:
under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, obtaining a first data packet, outputting a second capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
and under the condition that the first data packet received by the capacity expansion layer of the second terminal is determined to be a capacity expansion packet, outputting a second capacity expansion indication primitive to the application layer of the second terminal.
Or performing a communication model configuration method, the method comprising:
adding a capacity expansion layer between an application layer and a communication layer, wherein the application layer and the capacity expansion layer carry out data transmission based on capacity expansion primitives;
adding a judgment function in the application layer, wherein the judgment function is used for judging whether the length of the data packet exceeds the data capacity;
and newly adding a check function in the capacity expansion layer, wherein the check function is used for checking whether the data packet is a capacity expansion packet.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A communication model, comprising:
an application layer for inputting or outputting communication data;
the capacity expansion layer is used for carrying out data transmission with the application layer based on capacity expansion primitives under the condition that the length of a data packet in the application layer exceeds the data capacity;
the dilatation layer comprises any one of the following:
a newly added protocol stack;
and the protocol stack is split from the application layer.
2. A data transmission method, applied to the communication model of claim 1, where in a case where the capacity expansion layer is a newly added protocol stack, the method includes:
under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, obtaining a first data packet, outputting a first capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
under the condition that the first data packet received by the capacity expansion layer of the second terminal is determined to be a capacity expansion packet, outputting a first capacity expansion indication primitive to an application layer of the second terminal;
under the condition that the application layer of the second terminal is determined to receive the first capacity expansion indication primitive, outputting a first capacity expansion response primitive to a capacity expansion layer of the second terminal;
and under the condition that the first terminal is determined to receive the receipt message of the second terminal, outputting a first expansion confirmation primitive to an application layer of the first terminal.
3. A data transmission method, applied to the communication model of claim 1, where in the case where the capacity expansion layer is a protocol stack split from the application layer, the method includes:
under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, obtaining a first data packet, outputting a second capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
and under the condition that the first data packet received by the capacity expansion layer of the second terminal is determined to be a capacity expansion packet, outputting a second capacity expansion indication primitive to the application layer of the second terminal.
4. The data transmission method according to claim 3, wherein the communication model further comprises a security layer for securing data transmission;
the method further comprises the following steps:
judging whether a second data packet received by a security layer of the second terminal is a repeated packet, wherein the second data packet is a data packet except the first data packet in the target data packet;
after the outputting the second capacity expansion indication primitive to the application layer of the second terminal is performed under the condition that it is determined that the second data packet received by the security layer of the second terminal is a non-duplicate packet, the method further includes:
and splicing the first data packet and the second data packet.
5. A method for communication model configuration, comprising:
a capacity expansion layer is added between an application layer and a communication layer, and the application layer and the capacity expansion layer perform data transmission based on capacity expansion primitives;
adding a judgment function in the application layer, wherein the judgment function is used for judging whether the length of the data packet exceeds the data capacity;
and newly adding a check function in the capacity expansion layer, wherein the check function is used for checking whether the data packet is a capacity expansion packet.
6. A data transmission apparatus, applied to the communication model of claim 1, in a case where the capacity expansion layer is a newly added protocol stack, the apparatus comprising:
the first transmission module is used for obtaining a first data packet under the condition that the length of a target data packet output by an application layer of a first terminal is determined to exceed the data capacity, outputting a first capacity expansion request primitive to a capacity expansion layer of the first terminal, and inputting the first data packet to a capacity expansion layer of a second terminal, wherein the first data packet is obtained by dividing the target data packet;
a second transmission module, configured to output a first capacity expansion indication primitive to an application layer of the second terminal when it is determined that the first data packet received by the capacity expansion layer of the second terminal is a capacity expansion packet;
a third transmission module, configured to output a first expansion response primitive to an expansion layer of the second terminal when it is determined that the application layer of the second terminal receives the first expansion indication primitive;
a fourth transmission module, configured to output a first extended validation primitive to an application layer of the first terminal when it is determined that the first terminal receives the receipt message of the second terminal.
7. A data transmission apparatus, applied to the communication model of claim 1, where in the case where the capacity expansion layer is a protocol stack split from the application layer, the apparatus includes:
a fifth transmission module, configured to, when it is determined that a length of a target data packet output by an application layer of a first terminal exceeds the data capacity, obtain a first data packet, output a second capacity expansion request primitive to a capacity expansion layer of the first terminal, and input the first data packet to a capacity expansion layer of a second terminal, where the first data packet is a data packet obtained by dividing the target data packet;
a sixth transmission module, configured to output a second capacity expansion indication primitive to an application layer of the second terminal when it is determined that the first data packet received by the capacity expansion layer of the second terminal is a capacity expansion packet.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the data transmission method according to claim 2, or implements the data transmission method according to claim 3 or 4, or implements the communication model configuration method according to claim 5 when executing the program.
9. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the data transmission method according to claim 2, or implements the data transmission method according to claim 3 or 4, or implements the communication model configuration method according to claim 5.
10. A computer program product comprising a computer program, wherein the computer program, when executed by a processor, implements a data transmission method according to claim 2, or implements a data transmission method according to claim 3 or 4, or implements a communication model configuration method according to claim 5.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030056126A (en) * | 2001-12-27 | 2003-07-04 | 한국전자통신연구원 | Transporting Method of Uplink Data in Media Access Control Layer of Asynchronous Wireless Terminal |
| US20040184456A1 (en) * | 2001-06-18 | 2004-09-23 | Carl Binding | Packet-oriented data communications between mobile and fixed data networks |
| CN105183370A (en) * | 2015-08-13 | 2015-12-23 | 浪潮(北京)电子信息产业有限公司 | Communication method and communication model for implementing communication between two controllers |
| CN106375298A (en) * | 2016-08-30 | 2017-02-01 | 湖南中车时代通信信号有限公司 | Method for realizing configurable secure communication protocol |
| CN109614345A (en) * | 2018-12-18 | 2019-04-12 | 北京神州绿盟信息安全科技股份有限公司 | The EMS memory management process and device communicated between a kind of protocol layer |
| CN112039824A (en) * | 2019-06-03 | 2020-12-04 | 上海哔哩哔哩科技有限公司 | Communication method, system, device and computer readable storage medium |
| WO2022012525A1 (en) * | 2020-07-14 | 2022-01-20 | 维沃移动通信有限公司 | Data transmission method, data transmission apparatus, network side device, and first terminal |
-
2022
- 2022-06-14 CN CN202210674694.1A patent/CN115174159B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040184456A1 (en) * | 2001-06-18 | 2004-09-23 | Carl Binding | Packet-oriented data communications between mobile and fixed data networks |
| KR20030056126A (en) * | 2001-12-27 | 2003-07-04 | 한국전자통신연구원 | Transporting Method of Uplink Data in Media Access Control Layer of Asynchronous Wireless Terminal |
| CN105183370A (en) * | 2015-08-13 | 2015-12-23 | 浪潮(北京)电子信息产业有限公司 | Communication method and communication model for implementing communication between two controllers |
| CN106375298A (en) * | 2016-08-30 | 2017-02-01 | 湖南中车时代通信信号有限公司 | Method for realizing configurable secure communication protocol |
| CN109614345A (en) * | 2018-12-18 | 2019-04-12 | 北京神州绿盟信息安全科技股份有限公司 | The EMS memory management process and device communicated between a kind of protocol layer |
| CN112039824A (en) * | 2019-06-03 | 2020-12-04 | 上海哔哩哔哩科技有限公司 | Communication method, system, device and computer readable storage medium |
| WO2022012525A1 (en) * | 2020-07-14 | 2022-01-20 | 维沃移动通信有限公司 | Data transmission method, data transmission apparatus, network side device, and first terminal |
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