CN112399480B - Method, apparatus and storage medium for reducing transmission overhead - Google Patents
Method, apparatus and storage medium for reducing transmission overhead Download PDFInfo
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- CN112399480B CN112399480B CN202011226131.3A CN202011226131A CN112399480B CN 112399480 B CN112399480 B CN 112399480B CN 202011226131 A CN202011226131 A CN 202011226131A CN 112399480 B CN112399480 B CN 112399480B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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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
- H04L69/04—Protocols for data compression, e.g. ROHC
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Abstract
The embodiment of the application provides a method, a device and a storage medium for reducing transmission overhead, relates to the technical field of communication, and solves the technical problems of high overhead of air interface resources and poor service stability in a compression processing mode in the prior art. The method for reducing the transmission overhead comprises the following steps: acquiring a first Ethernet packet corresponding to a Data Radio Bearer (DRB); under the condition that the DRB is determined to configure the Ethernet packet header compression function and the receiving end establishes the Ethernet decompression context corresponding to the compression identifier, compressing the filling field in the packet header of the first Ethernet packet to obtain a second Ethernet packet; and sending the second Ethernet packet and a compression identifier to the receiving end, wherein the compression identifier is used for indicating the receiving end to determine the first Ethernet packet according to the second Ethernet packet and the Ethernet decompression context.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, and a storage medium for reducing transmission overhead.
Background
In the industrial internet of things based on ethernet, the periodic packet transmission service may be framed in a modem unit and then sent out over the air.
In the prior art, the compression processing can be performed on the MAC destination address, the MAC source address, the 802.1Q tag and the subdomains thereof in the Ethernet frame. However, with the development of communication technology, the demand of air interface bandwidth is increasing, and the air interface resource overhead of the compression processing mode in the prior art is still larger, so that the service stability is poor.
Disclosure of Invention
The application provides a method, a device and a storage medium for reducing transmission overhead, which solve the technical problems of larger overhead of air interface resources and poor service stability in a compression processing mode in the prior art.
In order to achieve the above purpose, the application adopts the following technical scheme:
in a first aspect, a method for reducing transmission overhead is provided, which is applied to a transmitting end, and includes: acquiring a first Ethernet packet corresponding to a Data Radio Bearer (DRB); under the condition that the DRB is determined to configure the Ethernet packet header compression function and the receiving end establishes the Ethernet decompression context corresponding to the compression identifier, compressing the filling field in the packet header of the first Ethernet packet to obtain a second Ethernet packet; and sending the second Ethernet packet and a compression identifier to the receiving end, wherein the compression identifier is used for indicating the receiving end to determine the first Ethernet packet according to the second Ethernet packet and the Ethernet decompression context.
In the embodiment of the application, the transmitting end can compress the filling field in the packet head of the first Ethernet packet to obtain the second Ethernet packet, and send the second Ethernet packet to the receiving end and the compression identifier for indicating the receiving end to determine the first Ethernet packet according to the second Ethernet packet, namely, the transmitting end can replace the first Ethernet packet by the second Ethernet packet, because the second Ethernet packet is the first Ethernet packet with the filling field compressed in the packet head, the air interface resource of the transmitting end for transmitting the second Ethernet packet is smaller than the air interface resource for transmitting the first Ethernet packet, therefore, the air interface resource can be saved in the process of transmitting the Ethernet packet in the embodiment of the application, and the reliability of the transmission service is improved.
In a second aspect, a method for reducing transmission overhead is provided, which is applied to a receiving end, and includes: receiving a second Ethernet packet and a compression identifier sent by a sending end; and under the condition that the Ethernet decompression context corresponding to the compression identifier is established, decompressing the filling field in the packet head of the second Ethernet packet according to the compression identifier and the Ethernet decompression context to obtain the first Ethernet packet.
In the embodiment of the application, the receiving end can receive the second Ethernet packet and the compression identifier, and decompress the filling field in the packet header of the second Ethernet packet according to the compression identifier and the Ethernet decompression context under the condition that the Ethernet decompression context corresponding to the compression identifier is established, so as to obtain the first Ethernet packet.
In a third aspect, an apparatus for reducing transmission overhead is provided, including an acquisition unit, a processing unit, and a communication unit. And the acquisition unit is used for acquiring the first Ethernet packet corresponding to the data radio bearer DRB. And the processing unit is used for compressing the filling field in the packet header of the first Ethernet packet to obtain a second Ethernet packet under the condition that the DRB is determined to configure the Ethernet packet header compression function and the receiving end establishes the Ethernet decompression context corresponding to the compression identifier. And the communication unit is used for sending the second Ethernet packet and a compression identifier to the receiving end, wherein the compression identifier is used for indicating the receiving end to determine the second Ethernet packet according to the second Ethernet packet and the Ethernet decompression context.
In a fourth aspect, an apparatus for reducing transmission overhead is provided, comprising a communication unit and a processing unit. And the communication unit is used for receiving the second Ethernet packet and the compression identifier sent by the sending end. And the processing unit is used for decompressing the filling field in the packet head of the second Ethernet packet according to the compression identifier and the Ethernet decompression context to obtain the first Ethernet packet under the condition that the Ethernet decompression context corresponding to the compression identifier is established.
In a fifth aspect, an apparatus is provided that reduces transmission overhead, including a memory and a processor. The memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus. When the means for reducing transmission overhead is running, the processor executes computer-executable instructions stored in the memory to cause the means for reducing transmission overhead to perform the method for reducing transmission overhead provided in the first aspect.
In a sixth aspect, an apparatus is provided for reducing transmission overhead, including a memory and a processor. The memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus. When the means for reducing transmission overhead is running, the processor executes the computer-executable instructions stored in the memory to cause the means for reducing transmission overhead to perform the method for reducing transmission overhead provided in the second aspect.
In a seventh aspect, there is provided a computer readable storage medium comprising computer executable instructions which, when run on a computer, cause the computer to perform the method of reducing transmission overhead provided in the first or second aspect.
In an eighth aspect, there is provided a computer program product comprising computer instructions which, when run on a computer, cause the computer to perform the method of reducing transmission overhead as provided in the first or second aspect above.
It should be noted that the above-mentioned computer instructions may be stored in whole or in part on a computer-readable storage medium. The computer readable storage medium may be packaged together with the processor of the apparatus for reducing transmission overhead, or may be packaged separately from the processor of the apparatus for reducing transmission overhead, which is not limited by the present application.
The description of the third, fifth, seventh and eighth aspects of the present application may refer to the detailed description of the first aspect; moreover, the advantages described in the third aspect, the fifth aspect, the seventh aspect and the eighth aspect may refer to the analysis of the advantages of the first aspect, and are not described herein.
The description of the fourth, sixth, seventh and eighth aspects of the present application may refer to the detailed description of the second aspect; also, the advantages described in the fourth aspect, the sixth aspect, the seventh aspect and the eighth aspect may refer to the analysis of the advantages of the second aspect, and are not described herein.
In the present application, the names of the above-described means for reducing transmission overhead do not constitute limitations on the devices or functional modules themselves, and in actual implementation, these devices or functional modules may appear under other names. Insofar as the function of each device or function module is similar to that of the present application, it falls within the scope of the claims of the present application and the equivalents thereof.
These and other aspects of the application will be more readily apparent from the following description.
Drawings
Fig. 1 is a schematic diagram of a hardware structure of an apparatus for reducing transmission overhead according to an embodiment of the present application;
fig. 2 is a second schematic hardware structure of an apparatus for reducing transmission overhead according to an embodiment of the present application;
fig. 3 is a flow chart of a method for reducing transmission overhead according to an embodiment of the present application;
FIG. 4 is a second flowchart of a method for reducing transmission overhead according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an apparatus for reducing transmission overhead according to an embodiment of the present application;
fig. 6 is a second schematic structural diagram of an apparatus for reducing transmission overhead according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
In order to clearly describe the technical solution of the embodiment of the present application, in the embodiment of the present application, the words "first", "second", etc. are used to distinguish identical items or similar items having substantially the same function and effect, and those skilled in the art will understand that the words "first", "second", etc. are not limited in number and execution order.
The embodiment of the application provides a method for reducing transmission overhead, which can be applied to a communication system for reducing transmission overhead. The communication system may include at least: a transmitting end and a receiving end. The sending end can be terminal equipment or network equipment, the receiving end can be network equipment or terminal equipment, and the receiving end is network equipment under the condition that the sending end is terminal equipment; in the case that the transmitting end is a network device, the receiving end is a terminal device.
Optionally, the terminal device provided in the embodiment of the present application may be various handheld devices, vehicle-mounted devices, wearable devices, computers, smart home devices or smart office devices with communication functions, which is not limited in any way. For example, the handheld device may be a smart phone. The in-vehicle device may be an in-vehicle navigation system. The wearable device may be a smart bracelet. The computer may be a personal digital assistant (personal digital assistant, PDA) computer, a tablet computer, or a laptop computer (laptop computer). The intelligent household equipment can be an intelligent curtain and an intelligent water meter. The intelligent office appliance may be an intelligent printer.
Optionally, the network device provided in the embodiment of the present application may be a base station, which may be a commonly used base station, an evolved node b (evolved node base station, eNB), or a network device in a 5G system (for example, a next generation base station (nextgeneration node basestation, gNB) or a transmitting and receiving point (transmission and reception point, TRP)) and other devices.
Fig. 1 is a schematic diagram of a hardware structure of an apparatus for reducing transmission overhead according to an embodiment of the present application. The device may be a terminal device in the above communication system or may be a network device in the above communication system. The means for reducing transmission overhead comprise a processor 11, a memory 12, a communication interface 13, a bus 14. The processor 11, the memory 12 and the communication interface 13 may be connected by a bus 14.
The processor 11 is a control center of the apparatus for reducing transmission overhead, and may be one processor or a collective term of a plurality of processing elements. For example, the processor 11 may be a general-purpose central processing unit (central processing unit, CPU), or may be another general-purpose processor. Wherein the general purpose processor may be a microprocessor or any conventional processor or the like.
As an example, processor 11 may include one or more CPUs, such as CPU 0 and CPU 1 shown in fig. 1.
Memory 12 may be, but is not limited to, read-only memory (ROM) or other type of static storage device that can store static information and instructions, random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, as well as electrically erasable programmable read-only memory (EEPROM), magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
In a possible implementation, the memory 12 may exist separately from the processor 11, and the memory 12 may be connected to the processor 11 through the bus 14 for storing instructions or program code. When the processor 11 invokes and executes the instructions or the program codes stored in the memory 12, the method for reducing transmission overhead provided by the embodiment of the application can be implemented.
In another possible implementation, the memory 12 may also be integrated with the processor 11.
A communication interface 13 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc. The communication interface 13 may include a receiving unit for receiving data, and a transmitting unit for transmitting data.
Bus 14 may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external device interconnect (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 1, but not only one bus or one type of bus.
It should be noted that the structure shown in fig. 1 does not constitute a limitation of the transmission overhead reducing apparatus. The means for reducing transmission overhead may include more or less components than those shown in fig. 1, or may combine certain components, or may be a different arrangement of components.
Fig. 2 shows another hardware configuration of an apparatus for reducing transmission overhead in an embodiment of the present application. As shown in fig. 2, the means for reducing transmission overhead may comprise a processor 21 and a communication interface 22. The processor 21 is coupled to a communication interface 22.
The function of the processor 21 may be as described above with reference to the processor 11. The processor 21 also has a memory function, and the function of the memory 12 can be referred to.
The communication interface 22 is used to provide data to the processor 21. The communication interface 22 may be an internal interface of the device for reducing the transmission overhead, or may be an external interface of the device for reducing the transmission overhead (corresponding to the communication interface 13).
It should be noted that the structure shown in fig. 1 (or fig. 2) does not constitute a limitation of the transmission overhead reducing apparatus, and the transmission overhead reducing apparatus may include more or less components than those shown in fig. 1 (or fig. 2), or may combine some components, or may be a different arrangement of components.
The method for reducing transmission overhead according to the embodiment of the present application is described in detail below with reference to the above-described apparatus for reducing transmission overhead shown in fig. 1 and fig. 2.
As shown in fig. 3, an embodiment of the present application provides a method for reducing transmission overhead, which may include S301 to S304 described below.
S301, a transmitting end acquires a first Ethernet packet corresponding to a data radio bearer DRB.
The first ethernet packet is a data packet on an ethernet link, and may also be referred to as an ethernet frame. The first ethernet packet may be carried on a data radio bearer (DataRadioBearer, DRB). As shown in table 1, the byte lengths of the respective components of the first ethernet packet. The first ethernet packet comprises a PREAMBLE (PREAMBLE), a frame Start (SFD), a destination ADDRESS (DESTINATION ADDRESS), a SOURCE ADDRESS (SOURCE ADDRESS), an 802.1Q tag (Tag Control Information), an ethernet TYPE/LENGTH (LENGTH/TYPE), a payload (DATA and PAD), and a redundancy check (FCS).
TABLE 1
In the periodic packet transmission service TSC, different service scenarios may correspond to different requirements. As shown in table 2, the scene requirements under different TSC service scenes are:
TABLE 2
In scenario 3 above, the period of the TSC traffic is 2ms and the packet size is 20bytes. The minimum length of the ethernet frame is 64 bytes, and since the payload size of the ethernet packet is in the range of 42-1500 bytes, i.e. the minimum payload is 42 bytes, there will be 22 bytes of PAD padding in case 3. Similarly, in scenario 2, there will be a PAD of 2 bytes filled.
S302, the transmitting end compresses filling fields in the packet header of the first Ethernet packet to obtain a second Ethernet packet under the condition that the DRB configures the Ethernet packet header compression function and the receiving end establishes an Ethernet decompression context corresponding to the compression identifier.
Because PAD padding exists in the Ethernet packet header in some scenes, the purpose of saving air interface resource overhead can be achieved by removing the PAD padding field. Before the packing field in the header of the first ethernet packet is compressed, whether PAD packing exists can be judged first, specifically, whether the ethernet type length of the first ethernet packet is smaller than the minimum frame length of the ethernet frame can be judged, if the ethernet type length is smaller than the minimum frame length of the ethernet frame, the PAD packing exists, and the transmitting end can compress the packing field of the first ethernet packet, so that the second ethernet packet is obtained. The sender may then associate the second ethernet packet with the compression identifier.
Optionally, the sender may compress and remove the MAC destination address, the MAC source address, the 802.1Q tag, and its subdomains, and then remove the PAD padding field.
S303, the transmitting end transmits the second Ethernet packet and the compression identifier to the receiving end.
Correspondingly, the receiving end receives the second Ethernet packet and the compression identifier sent by the sending end.
The compression identifier may be used to instruct the receiving end to determine the first ethernet packet according to the second ethernet packet and the ethernet decompression context.
And S304, under the condition that the Ethernet decompression context corresponding to the compression identifier is established, the receiving end decompresses the filling field in the packet header of the second Ethernet packet according to the compression identifier and the Ethernet decompression context to obtain the first Ethernet packet.
The receiving end establishes the Ethernet decompression context corresponding to the compression identifier, namely that the receiving end comprises a complete Ethernet packet corresponding to the compression identifier, so that the receiving end can determine the packet header of an uncompressed Ethernet packet from the complete Ethernet packet according to the compression identifier, and take the determined packet header of the Ethernet packet as the packet header of a second Ethernet packet, thereby obtaining the first Ethernet packet.
The embodiment of the application provides a method for reducing transmission overhead, a transmitting end can compress a filling field in a packet head of a first Ethernet packet to obtain a second Ethernet packet, and send the second Ethernet packet to a receiving end and the method is used for indicating the receiving end to determine a compression identifier of the first Ethernet packet according to the second Ethernet packet, namely, the transmitting end can replace the first Ethernet packet by the second Ethernet packet.
Optionally, in combination with fig. 3, as shown in fig. 4, before S301, the method for reducing transmission overhead provided by the embodiment of the present application may further include S305 to S308 described below.
S305, the sending end obtains a third Ethernet packet.
The third ethernet packet includes a header of an uncompressed padding field, that is, the third ethernet packet may be a complete ethernet packet as described in S304.
S306, under the condition that the DRB configures the Ethernet packet header compression function, the sending end sends a third Ethernet packet and a compression identifier to the receiving end.
Correspondingly, the receiving end receives the third Ethernet packet and the compression identifier sent by the sending end.
S307, the receiving end establishes an Ethernet decompression context according to the third Ethernet packet and the compression identifier.
The receiving end may correspondingly store the third ethernet packet and the compression identifier, thereby establishing an ethernet decompression context.
S308, the receiving end sends response information to the sending end.
Correspondingly, the sending end receives the response information sent by the receiving end.
The response information may include a compression identifier, and the response information may be used to indicate that the receiving end has established an ethernet decompression context corresponding to the compression identifier, that is, the transmitting end may determine that the ethernet decompression context is valid after receiving the response information. After the transmitting end determines that the ethernet decompression context is validated, the transmitting end may transmit the second ethernet packet to the receiving end.
The foregoing description of the solution provided by the embodiments of the present application has been mainly presented in terms of a method. To achieve the above functions, it includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The method for reducing transmission overhead provided by the embodiment of the application can be used as a device for reducing transmission overhead or a control module for executing the service for reducing transmission overhead in the device for reducing transmission overhead. In the embodiment of the present application, a method for reducing transmission overhead performed by a device for reducing transmission overhead is taken as an example, and a service device for reducing transmission overhead performed by the embodiment of the present application is described.
It should be noted that, in the embodiment of the present application, the function modules of the apparatus for reducing transmission overhead may be divided according to the above method example, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. Optionally, the division of the modules in the embodiment of the present application is schematic, which is merely a logic function division, and other division manners may be implemented in practice.
As shown in fig. 5, an apparatus for reducing transmission overhead is provided in an embodiment of the present application. The apparatus 500 for reducing transmission overhead may be a transmitting end in the above-described method embodiment. The apparatus 500 for reducing transmission overhead may include an acquisition unit 501, a processing unit 502, and a communication unit 503. The acquisition unit 501 may be configured to acquire a first ethernet packet corresponding to a data radio bearer DRB. The processing unit 502 may be configured to perform compression processing on a padding field in a header of the first ethernet packet to obtain a second ethernet packet when it is determined that the DRB configures an ethernet header compression function and the receiving end has established an ethernet decompression context corresponding to a compression identifier. The communication unit 503 may be configured to send the second ethernet packet and the compression identifier to a receiving end, where the compression identifier is used to instruct the receiving end to determine the first ethernet packet according to the second ethernet packet and the ethernet decompression context.
Optionally, the acquiring unit 501 may be further configured to acquire a third ethernet packet before acquiring the first ethernet packet corresponding to the data radio bearer DRB, where the third ethernet packet includes a packet header of an uncompressed padding field. The communication unit 503 may be further configured to send the third ethernet packet and the compression identifier to the receiving end and receive response information sent by the receiving end when the DRB configures an ethernet packet header compression function. The response information comprises the compression identifier, and is used for indicating that the receiving end has established an Ethernet decompression context corresponding to the compression identifier.
Optionally, the processing unit 502 may specifically be configured to: judging whether the Ethernet type length of the first Ethernet packet is smaller than the minimum frame length of an Ethernet frame or not; and if the Ethernet type length is smaller than the minimum frame length of the Ethernet frame, compressing the filling field of the first Ethernet packet to obtain the second Ethernet packet.
Of course, the apparatus 500 for reducing transmission overhead provided in the embodiment of the present application includes, but is not limited to, the above modules.
In actual implementation, the processing unit 502 may be implemented by the processor 11 shown in fig. 1 invoking program code in the memory 12. For a specific implementation, reference may be made to the description of the method portion for reducing transmission overhead shown in fig. 3 or fig. 4, which is not repeated here.
In the embodiment of the application, the device for reducing the transmission cost can compress the filling field in the packet head of the first Ethernet packet to obtain the second Ethernet packet, and send the second Ethernet packet to the receiving end and the device for indicating the receiving end to determine the compression identifier of the first Ethernet packet according to the second Ethernet packet, namely the device for reducing the transmission cost can replace the first Ethernet packet by the second Ethernet packet.
As shown in fig. 6, an apparatus for reducing transmission overhead is provided in an embodiment of the present application. The apparatus 600 for reducing transmission overhead may be a transmitting end in the above-described method embodiment. The apparatus 600 for reducing transmission overhead may include a communication unit 601 and a processing unit 602. The communication unit 601 may be configured to receive the second ethernet packet and the compressed identifier sent by the sending end. The processing unit 602 may be configured to, when an ethernet decompression context corresponding to the compression identifier is established, decompress a padding field in a header of the second ethernet packet according to the compression identifier and the ethernet decompression context to obtain a first ethernet packet.
Optionally, the above communication unit 601 may be further configured to receive, before receiving the second ethernet packet and the compression identifier sent by the sending end, a third ethernet packet and the compression identifier sent by the sending end, where the third ethernet packet includes a packet header of an uncompressed padding field. The processing unit 602 may be further configured to establish an ethernet decompression context according to the third ethernet packet and the compression identifier. The communication unit 601 may be further configured to send response information to the sending end, where the response information includes the compression identifier, and the response information is used to indicate that an ethernet decompression context corresponding to the compression identifier has been established.
Of course, the apparatus 600 for reducing transmission overhead provided in the embodiment of the present application includes, but is not limited to, the above modules.
In actual implementation, the processing unit 602 may be implemented by the processor 11 shown in fig. 1 invoking program code in the memory 12. For a specific implementation, reference may be made to the description of the method portion for reducing transmission overhead shown in fig. 3 or fig. 4, which is not repeated here.
In the embodiment of the application, the device for reducing the transmission cost can receive the second Ethernet packet and the compression identifier, and decompress the filling field in the packet header of the second Ethernet packet according to the compression identifier and the Ethernet decompression context under the condition that the Ethernet decompression context corresponding to the compression identifier is established, so as to obtain the first Ethernet packet.
The embodiments of the present application also provide a computer-readable storage medium including computer-executable instructions. The computer-executable instructions, when executed on a computer, cause the computer to perform the steps performed by the means for reducing transmission overhead in the method for reducing transmission overhead provided by the embodiments described above.
The embodiment of the application also provides a computer program product, which can be directly loaded into a memory and contains software codes, and the computer program product can realize each step executed by the device for reducing transmission overhead in the method for reducing transmission overhead provided by the embodiment after being loaded and executed by a computer.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer-executable instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are fully or partially produced. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, a website, computer, server, or data center via a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. Computer readable storage media can be any available media that can be accessed by a computer or data storage devices including one or more servers, data centers, etc. that can be integrated with the media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.
From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and the division of modules or units is merely a logical function division, and other manners of division may be implemented in practice. For example, multiple units or components may be combined or may be integrated into another device, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and the parts shown as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units. The integrated units may be stored in a readable storage medium if implemented in the form of software functional units and sold or used as stand-alone products. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or a part contributing to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several instructions for causing a device (may be a single-chip microcomputer, a chip or the like) or a processor (processor) to perform all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (6)
1. A method for reducing transmission overhead, applied to a transmitting end, comprising:
acquiring a third Ethernet packet, wherein the third Ethernet packet comprises a packet head of an uncompressed filling field;
under the condition that the DRB configures an Ethernet packet header compression function, sending the third Ethernet packet and a compression identifier to a receiving end;
receiving response information sent by the receiving end, wherein the response information comprises the compression identifier, and the response information is used for indicating that the receiving end has established an Ethernet decompression context corresponding to the compression identifier;
acquiring a first Ethernet packet corresponding to a Data Radio Bearer (DRB);
under the condition that the DRB is determined to be configured with an Ethernet packet header compression function and the receiving end establishes an Ethernet decompression context corresponding to a compression identifier, compressing a filling field in a packet header of the first Ethernet packet to obtain a second Ethernet packet;
the second Ethernet packet and the compression identifier are sent to a receiving end, and the compression identifier is used for indicating the receiving end to determine the first Ethernet packet according to the second Ethernet packet and the Ethernet decompression context;
the compressing the filling field in the header of the first ethernet packet to obtain a second ethernet packet includes:
judging whether the Ethernet type length of the first Ethernet packet is smaller than the minimum frame length of an Ethernet frame or not;
and if the Ethernet type length is smaller than the minimum frame length of the Ethernet frame, compressing the filling field of the first Ethernet packet to obtain the second Ethernet packet.
2. A method for reducing transmission overhead, applied to a receiving end, comprising:
receiving a third Ethernet packet and a compression identifier, wherein the third Ethernet packet is sent by a sending end and comprises a packet head of an uncompressed filling field;
establishing an Ethernet decompression context according to the third Ethernet packet and the compression identifier;
transmitting response information to the transmitting end, wherein the response information comprises the compression identifier, and the response information is used for indicating that an Ethernet decompression context corresponding to the compression identifier is established;
receiving a second Ethernet packet and a compression identifier sent by a sending end;
and under the condition that the Ethernet decompression context corresponding to the compression identifier is established, decompressing a filling field in a packet head of the second Ethernet packet according to the compression identifier and the Ethernet decompression context to obtain a first Ethernet packet.
3. An apparatus for reducing transmission overhead, comprising: the device comprises an acquisition unit, a processing unit and a communication unit;
the acquiring unit is configured to acquire a first ethernet packet corresponding to the data radio bearer DRB;
the processing unit is configured to perform compression processing on a filling field in a packet header of the first ethernet packet to obtain a second ethernet packet when it is determined that the DRB configures an ethernet packet header compression function and the receiving end has established an ethernet decompression context corresponding to a compression identifier;
the communication unit is configured to send the second ethernet packet and the compression identifier to a receiving end, where the compression identifier is configured to instruct the receiving end to determine the first ethernet packet according to the second ethernet packet and the ethernet decompression context;
the acquiring unit is further configured to acquire a third ethernet packet before acquiring the first ethernet packet corresponding to the data radio bearer DRB, where the third ethernet packet includes a packet header of an uncompressed padding field;
the communication unit is further configured to send the third ethernet packet and the compression identifier to the receiving end and receive response information sent by the receiving end when the DRB configures an ethernet packet header compression function;
the response information comprises the compression identifier, and is used for indicating that the receiving end has established an Ethernet decompression context corresponding to the compression identifier;
the processing unit is specifically configured to: judging whether the Ethernet type length of the first Ethernet packet is smaller than the minimum frame length of an Ethernet frame or not; and if the Ethernet type length is smaller than the minimum frame length of the Ethernet frame, compressing the filling field of the first Ethernet packet to obtain the second Ethernet packet.
4. An apparatus for reducing transmission overhead, comprising: a communication unit and a processing unit;
the communication unit is used for receiving the second Ethernet packet and the compression identifier sent by the sending end;
the processing unit is configured to, when an ethernet decompression context corresponding to the compression identifier is established, decompress a padding field in a header of the second ethernet packet according to the compression identifier and the ethernet decompression context to obtain a first ethernet packet;
the communication unit is further configured to receive a third ethernet packet and the compression identifier, where the third ethernet packet is sent by the sending end, before the second ethernet packet and the compression identifier are received, and the third ethernet packet includes a packet header of an uncompressed filling field;
the processing unit is further configured to establish an ethernet decompression context according to the third ethernet packet and the compression identifier;
the communication unit is further configured to send response information to the sending end, where the response information includes the compression identifier, and the response information is used to indicate that an ethernet decompression context corresponding to the compression identifier is established.
5. An apparatus for reducing transmission overhead, comprising a memory and a processor; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus;
when the means for reducing transmission overhead is running, the processor executes the computer-executable instructions stored in the memory to cause the means for reducing transmission overhead to perform the method for reducing transmission overhead as claimed in claim 1 or claim 2.
6. A computer-readable storage medium comprising computer-executable instructions that, when run on a computer, cause the computer to perform the method of reducing transmission overhead of claim 1 or claim 2.
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