CN111107051A - Message transmission method and device, computer equipment and storage medium - Google Patents
Message transmission method and device, computer equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The application relates to a message transmission method, a message transmission device, computer equipment and a storage medium. The method comprises the following steps: according to a target field in an original message, searching a compression coding identifier corresponding to the target field in a stream compression table; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field of an IP header; the stream compression table is used for expressing the mapping relation between the target field and the compression coding identification; compressing the original message according to the compression coding identifier to obtain a compressed message; and sending the compressed message to the receiving end equipment so that the receiving end equipment decompresses the compressed message according to the compression coding identification. By adopting the method, the utilization rate of the wireless channel bandwidth can be improved, and the reliability of the compression function can be improved while the compression efficiency is ensured.
Description
Technical Field
The present application relates to the field of wireless communications, and in particular, to a method and an apparatus for packet transmission, a computer device, and a storage medium.
Background
As wireless communication technology advances, wireless devices become more prevalent and increasingly request access to wireless channels. For example, when two network devices communicate according to the IEEE 802.11 standard, a Media Access Control (MAC) header and an Internet Protocol (IP) header may be added to a header of a data packet, thereby identifying a source and a destination of the communication.
In wireless communication, the bandwidth of a wireless channel is the most precious resource in the whole wireless system, but due to the hierarchical design of the traditional TCP/IP network, a part of control bytes, such as a MAC header or a part of IP header, are consumed for the packet encapsulation of each layer, and these bytes are control information and do not carry data that a user really needs to transmit, which greatly reduces the bandwidth utilization rate of the wireless channel.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a message transmission method, an apparatus, a computer device, and a storage medium for improving the bandwidth utilization of a wireless channel.
In a first aspect, an embodiment of the present invention provides a packet transmission method, where the method includes:
according to a target field in an original message, searching a compression coding identifier corresponding to the target field in a stream compression table; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field of an IP header; the stream compression table is used for expressing the mapping relation between the target field and the compression coding identification;
compressing the original message according to the compression coding identifier to obtain a compressed message;
and sending the compressed message to the receiving end equipment so that the receiving end equipment decompresses the compressed message according to the compression coding identification.
In an embodiment of the present application, the compressing the original packet according to the compression coding identifier to obtain a compressed packet includes:
and deleting the target field in the original message, and adding the compressed coding identifier as a new field into the original message after the target field is deleted to form the compressed message.
In an embodiment of the present application, said looking up a corresponding compression coding identifier in a stream compression table according to a target field in an original message includes:
determining the data flow type of the message according to the target field;
looking up whether the data stream class exists in the stream compression table;
and if the data stream type exists in the stream compression table, acquiring a compression coding identifier corresponding to the data stream type.
In one embodiment of the present application, the method further comprises:
if the data stream type does not exist in the stream compression table;
generating a compression coding identifier corresponding to the data stream category;
storing the mapping relation between the data stream category and the generated compression coding identifier into the stream compression table;
and synchronizing the updated stream compression table to the receiving end equipment.
In an embodiment of the present application, synchronizing the updated stream compression table to the receiving end device includes:
sending a synchronization message to the receiving end equipment, wherein the synchronization message carries the mapping relation between the data stream type and the generated compression coding identifier;
and receiving the synchronization confirmation message fed back by the receiving terminal equipment.
In a second aspect, an embodiment of the present invention provides a packet transmission method, where the method includes:
receiving a compressed message sent by sending end equipment, wherein the compressed message carries a compressed coding identifier;
decompressing the compressed message according to the compressed coding identifier and the stream compression table to obtain an original message; the stream compression table is used for representing the mapping relation between the target field and the compression coding identification.
In an embodiment of the present application, the decompressing the compressed packet according to the compression coding identifier includes:
searching a data stream category corresponding to the compression coding identification in the stream compression table;
acquiring a corresponding target field according to the data stream type; the destination field comprises a MAC header and an IP field of an IP header;
and deleting the compression coding identification in the compressed message, and adding the target field serving as a new field into the compressed message with the compression coding identification deleted to form the original message.
In one embodiment of the present application, the method further comprises:
receiving a synchronization message sent by the sending end equipment, wherein the synchronization message carries a mapping relation between a newly added data stream type and a compression coding identifier;
storing the mapping relation between the class of the data stream to be synchronized and the code identification of the compression to be synchronized into the stream compression table;
and sending a synchronization confirmation message to the sending terminal equipment.
In a third aspect, an embodiment of the present invention provides a packet transmission apparatus, where the apparatus includes:
the identification acquisition module is used for searching a compression coding identification corresponding to a target field in a stream compression table according to the target field in an original message; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field; the stream compression table is used for expressing the mapping relation between the target field and the compression coding identification;
the compression module is used for compressing the original message according to the compression coding identifier to obtain a compressed message;
and the transmission module is used for sending the compressed message to receiving end equipment so that the receiving end equipment decompresses the compressed message according to the compressed coding identification.
In a fourth aspect, an embodiment of the present invention provides a packet transmission apparatus, where the apparatus includes:
the receiving module is used for receiving a compressed message sent by sending end equipment, and the compressed message carries a compressed coding identifier;
the decompression module is used for carrying out decompression operation on the compressed message according to the compression coding identifier and the stream compression table so as to obtain an original message; the stream compression table is used for representing the mapping relation between the target field and the compression coding identification.
In a fifth aspect, an embodiment of the present invention provides a computer device, including a memory and a processor, where the memory stores a computer program, and the processor implements the following steps when executing the computer program:
according to a target field in an original message, searching a compression coding identifier corresponding to the target field in a stream compression table; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field; the stream compression table is used for expressing the mapping relation between the target field and the compression coding identification;
compressing the original message according to the compression coding identifier to obtain a compressed message;
and sending the compressed message to the receiving end equipment so that the receiving end equipment decompresses the compressed message according to the compression coding identification.
In a sixth aspect, an embodiment of the present invention provides a computer device, including a memory and a processor, where the memory stores a computer program, and the processor implements the following steps when executing the computer program:
receiving a compressed message sent by sending end equipment, wherein the compressed message carries a compressed coding identifier;
decompressing the compressed message according to the compressed coding identifier and the stream compression table to obtain an original message; the stream compression table is used for representing the mapping relation between the target field and the compression coding identification.
In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following steps:
according to a target field in an original message, searching a compression coding identifier corresponding to the target field in a stream compression table; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field of an IP header; the stream compression table is used for expressing the mapping relation between the target field and the compression coding identification;
compressing the original message according to the compression coding identifier to obtain a compressed message;
and sending the compressed message to the receiving end equipment so that the receiving end equipment decompresses the compressed message according to the compression coding identification.
In an eighth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following steps:
receiving a compressed message sent by sending end equipment, wherein the compressed message carries a compressed coding identifier;
decompressing the compressed message according to the compressed coding identifier and the stream compression table to obtain an original message; the stream compression table is used for representing the mapping relation between the target field and the compression coding identification.
According to the message transmission method, the message transmission device, the computer equipment and the storage medium, the compression coding identification corresponding to the target field is searched in the stream compression table according to the target field in the original message; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field of an IP header; the stream compression table is used for expressing the mapping relation between the target field and the compression coding identification; compressing the original message according to the compressed coding identifier to obtain a compressed message; and sending the compressed message to a receiving end device so that the receiving end device decompresses the compressed message according to the compressed coding identification. According to the message transmission method provided by the embodiment of the application, the stream compression table is arranged at the sending end and the receiving end, the original message is compressed by using the compression coding identifier through the mapping relation between the target field and the compression coding identifier in the stream compression table, and the obtained compression message is sent to the receiving end, so that the receiving end device decompresses the compression message according to the compression coding identifier. The joint compression of the IP fields of the MAC header and the IP header can be realized, and the reliability of the compression function is improved while the compression efficiency is ensured by the form of the stream compression table.
Drawings
Fig. 1 is an implementation environment diagram of a message transmission method according to an embodiment of the present application;
fig. 2 is a flowchart of a message transmission method according to an embodiment of the present application;
fig. 3 is a schematic diagram of message compression provided in the embodiment of the present application;
fig. 4 is a flowchart of another message transmission method according to an embodiment of the present application;
fig. 5 is a flowchart of another message transmission method according to an embodiment of the present application;
fig. 6 is a flowchart of another message transmission method according to an embodiment of the present application;
fig. 7 is a flowchart of another message transmission method according to an embodiment of the present application;
fig. 8 is a flowchart of another message transmission method according to an embodiment of the present application;
fig. 9 is a schematic diagram of message decompression provided in the embodiment of the present application;
fig. 10 is a flowchart of another message transmission method according to an embodiment of the present application;
fig. 11 is a block diagram of a message transmission apparatus according to an embodiment of the present application;
fig. 12 is a block diagram of another message transmission apparatus according to an embodiment of the present application;
fig. 13 is a block diagram of a computer device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The message transmission method provided by the application can be applied to the application environment shown in fig. 1. Where network device 102 communicates with network device 104 over a wireless communication link. The network device 102 and the network device 104 may be, but are not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices, and in this application, the network device 102 is used as a sending-end device, and the network device 104 is used as a receiving-end device.
Referring to fig. 2, it shows a message transmission method provided in this embodiment, which is described by taking the method as an example applied to the network device 102 in fig. 1, and includes the following steps:
In an embodiment of the present application, a stream compression table is prestored in a sending end, and the stream compression table at least includes a mapping relationship between a target field and a compression coding identifier, where the target field includes an MAC header and an IP field of the IP header, and a unique compression coding identifier is mapped to each combination of the MAC header and the IP field of the IP header.
In an embodiment of the present application, the MAC header in the destination field may include a source MAC field, a destination MAC field, and a TYPE field, and the IP field of the IP header may include a source IP field and a destination IP field. The source MAC field and the destination MAC field are both 6 bytes, the TYPE field is 2 bytes, and the source IP field and the destination IP field are both 4 bytes. Thus, the target field may include 22 bytes.
In another embodiment of the present application, the MAC header further includes at least 1 VLAN field in addition to the source MAC field, the destination MAC field and the TYPE field, wherein the VLAN field is 4 bytes. Thus, the target field may comprise at least 26 bytes.
In one embodiment of the present application, the compression encoding identification may be 2 to 5 bytes. In a preferred embodiment, the compression coding identifier may be set to 2 bytes in combination with the conventional number of data streams in the wireless link, that is, the length of the compressed packet may be shortened as much as possible by using the compression coding identifier of 2 bytes on the premise of satisfying the compression usage, thereby improving the compression efficiency.
And step 204, compressing the original message according to the compression coding identifier to obtain a compressed message.
In one embodiment of the present application, the sender may replace the target field with the compressed code identification. For example, if the target field includes a source MAC field, a destination MAC field, a TYPE field, 1 VLAN field, a source IP field, and a destination IP field, and the target field includes 26 bytes in total, the compression code is identified as 2 bytes, by using the compression method of the present application, the target field can be compressed from the original 26 bytes to 2 bytes, and the compression efficiency of 26:2 is achieved.
In an embodiment of the present application, a stream compression table that is the same as that of the sending end is also preset in the receiving end device, so that the stream compression table in the receiving end device also includes a mapping relationship between a target field and a compression coding identifier, a compressed packet is sent to the receiving end device at the sending end, and after receiving the compressed packet, the receiving end decompresses the compressed packet according to the compression coding identifier carried in the compressed packet, and further obtains a corresponding original packet.
In the message transmission method provided by the embodiment of the application, a compression coding identifier corresponding to a target field is searched in a stream compression table according to the target field in an original message; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field of an IP header; the stream compression table is used for expressing the mapping relation between the target field and the compression coding identification; compressing the original message according to the compressed coding identifier to obtain a compressed message; and sending the compressed message to a receiving end device so that the receiving end device decompresses the compressed message according to the compressed coding identification. According to the message transmission method provided by the embodiment of the application, the stream compression table is arranged at the sending end and the receiving end, the original message is compressed by using the compression coding identifier through the mapping relation between the target field and the compression coding identifier in the stream compression table, and the obtained compression message is sent to the receiving end, so that the receiving end device decompresses the compression message according to the compression coding identifier. The method can realize the joint compression of the IP fields of the MAC header and the IP header, the compression efficiency can reach 26:2, and the reliability of the compression function is improved while the compression efficiency is ensured by the form of the stream compression table.
The embodiment also provides another message transmission method, which can be applied to the terminal 102 in the implementation environment described above. On the basis of the embodiment shown in fig. 2, the step 204 may specifically include the following steps:
deleting the target field in the original message, and adding the compression coding identification as a new field into the original message after the target field is deleted to form a compressed message.
In an embodiment of the present application, please refer to the packet compression diagram shown in fig. 3, wherein the original packet at least includes a source MAC field, a destination MAC field, a TYPE field, 1 VLAN field, a source IP field, and a destination IP field, and the destination field includes 26 bytes in total.
In an embodiment of the present application, the source IP field and the destination IP field are located in a middle portion of the IP header, in a message compression process, the source IP field and the destination IP field in the IP header are deleted first, the deleted partial IP header is retained in the original message, and the newly added field, that is, the compression encoding identifier is set in a position before the partial IP header.
According to the message transmission method provided by the embodiment of the application, the compressed message is formed by deleting the target field in the original message and adding the compressed coding identifier as the new field into the original message with the target field deleted. The method can realize the joint compression of the IP fields of the MAC header and the IP header, the compression efficiency can reach at least 26:2, and the reliability of the compression function is improved while the compression efficiency is ensured by the form of the stream compression table.
Referring to fig. 4, a flowchart of another message transmission method provided in this embodiment is shown, where the message transmission method can be applied to the network device 102 in the implementation environment described above. On the basis of the embodiment shown in fig. 2, the step 202 may specifically include the following steps:
In an embodiment of the present application, the unique data flow type may be determined according to the MAC header in the destination field and the IP field of the IP header, and specifically, the unique data flow type may be determined according to the source MAC field, the destination MAC field, the source IP field, and the destination IP field.
At step 404, the flow compression table is looked up for the presence of a data flow class.
In an embodiment of the present application, the stream compression table may include a mapping relationship between the target field and a data stream category, and may further include a mapping relationship between a data stream category and a compression coding identifier. Therefore, when the original packet needs to be compressed, whether the data stream type exists needs to be searched in the stream compression table to determine whether the original packet can be compressed.
In an embodiment of the present application, when the data stream class exists in the stream compression table, it indicates that the data stream class to which the original packet belongs has a corresponding compression coding identifier, and obtains the compression coding identifier.
In an embodiment of the present application, when the data stream class does not exist in the stream compression table, it indicates that the data stream class to which the original packet belongs needs to be compressed for the first time, and therefore, a compression coding identifier corresponding to the data stream class does not exist in the stream compression table for the moment, and therefore, a compression operation cannot be performed on the original packet.
In the message transmission method provided by the embodiment of the application, the data stream type of the message is determined according to the target field; searching whether a data stream category exists in a stream compression table; and if the stream compression table has the data stream type, acquiring a compression coding identifier corresponding to the data stream type. According to the message transmission method provided by the embodiment of the application, the data stream types of the original messages are classified according to the target fields, and whether the data stream types exist in the stream compression table is further judged, so that the original messages are not compressed when the data stream types do not exist in the stream compression table, the condition that a receiving end cannot decompress the compressed messages due to the fact that the stream compression tables are asynchronous is avoided, and the reliability of data transmission is improved.
When the data stream class does not exist in the stream compression table, the compression operation cannot be performed on each original packet corresponding to the data stream class, so please refer to fig. 5, which shows a flowchart of another packet transmission method provided in this embodiment, where the packet transmission method may be applied to the network device 102 in the implementation environment described above. On the basis of the embodiment shown in fig. 4, the method may further include the following steps:
In an embodiment of the present application, when the data stream class does not exist in the stream compression table, it indicates that the data stream class to which the original packet belongs needs to be compressed for the first time, and therefore, the sending end may generate a corresponding compression coding identifier according to the data stream class. Specifically, according to the generation rule of each existing compression encoding identifier in the stream compression table, a different compression encoding identifier may be generated for the data stream type, and the mapping relationship between the data stream type and the generated compression encoding identifier may be stored in the stream compression table.
Specifically, the generation rule of the compression coding identifier may be generated according to the order of appearance of each data stream category; the generation rule of the compression coding identifier may also be generated according to the occurrence time of each data stream category, which is not limited in the present application.
In an embodiment of the present application, the receiving end synchronizes the updated stream compression table to the receiving device, and after receiving the reception confirmation message of the receiving device, the mapping relationship between the generated data stream type and the generated compression coding identifier is formally valid. And if the original message corresponding to the data stream type is received later, compressing the original message according to the generated compression coding identifier. In an embodiment of the present application, if the reception acknowledgement message of the receiving device is not received within the preset time interval, indicating that the synchronization fails this time, the mapping relationship between the data stream type and the generated compression coding identifier is deleted in the stream compression table.
In the message transmission method provided in the embodiment of the present application, if there is no data stream type in the stream compression table; generating a compression coding identifier corresponding to the data stream category; storing the mapping relation between the data stream category and the generated compression coding identifier into a stream compression table; and synchronizing the updated stream compression table to the receiving end equipment. According to the message transmission method provided by the embodiment of the application, when the data stream type to which the original message belongs does not exist in the stream compression list, the corresponding compression coding identifier can be generated in time, the mapping relation between the data stream type and the generated compression coding identifier is stored in the stream compression table, and the stream compression table is synchronized to the receiving end device, so that the original message corresponding to the data stream type can be compressed after the sending end synchronously updates the stream compression table to the receiving end, the adaptability of the compression method to a complex transmission environment is improved, and the transmission efficiency in the complex transmission environment is further improved.
Referring to fig. 6, a flowchart of another message transmission method provided in this embodiment is shown, where the message transmission method can be applied to the network device 102 in the implementation environment described above. On the basis of the embodiment shown in fig. 5, the step 508 may further include the following steps:
In an embodiment of the present application, when synchronizing the updated stream compression table to the receiving end device, the sending end sends a synchronization message to the receiving end device. In order to prevent the transmission message from occupying excessive wireless bandwidth, the synchronization message only carries the mapping relationship between the data stream class and the generated compressed coding identifier. Specifically, the synchronization message also carries a mapping relationship between the data stream type and the target field.
In an embodiment of the present application, the sending end needs to receive a synchronization confirmation message fed back by the receiving end device, and after receiving the synchronization confirmation message, it indicates that the synchronization operation is completed.
According to the message transmission method provided by the embodiment of the application, when the updated stream compression table is synchronized to the receiving end equipment, a synchronization message is sent to the receiving end equipment, and the synchronization message carries the mapping relation between the data stream type and the generated compression coding identifier; and receiving the synchronization confirmation message fed back by the receiving terminal equipment. The utilization rate of wireless bandwidth during synchronization of the stream compression list is guaranteed, adaptability in a complex transmission environment is improved, and occupation of compression control information on the wireless bandwidth is also saved.
Referring to fig. 7, a flowchart of another message transmission method provided in this embodiment is shown, where the message transmission method can be applied to the network device 104 in the implementation environment described above. The method comprises the following steps:
In an embodiment of the present application, when receiving a message transmitted by a transmitting end, a receiving end determines whether the message is a compressed message according to header information of the message, wherein when the header information of the message includes a normal MAC header and an IP header, the receiving end determines that an original message that is not compressed during the message is not decompressed. When the header information of the packet does not include a normal MAC header and an IP header, the compression coding identifier carried by the packet is extracted, and specifically, the receiving end extracts the compression coding identifier according to the number of bytes of the preset compression coding identifier and the relative position in the compressed packet.
In an embodiment of the present application, the receiving end may search a corresponding target field in the stream compression table according to the compression coding identifier, and perform a decompression operation on the compressed packet through the target field. Wherein the compressed code identification can be replaced with the target field.
According to the message transmission method provided by the embodiment of the application, a compressed message sent by sending end equipment is received, and the compressed message carries a compressed coding identifier; decompressing the compressed message according to the compressed coding identifier and the stream compression table to obtain an original message; the stream compression table is used for representing the mapping relation between the target field and the compression coding identification. And decompressing the compressed message by using the compression coding identifier through the mapping relation between the target field and the compression coding identifier in the stream compression table, thereby obtaining the original message corresponding to the compressed message, and improving the reliability of the compression function while ensuring the compression efficiency.
Referring to fig. 8, a flowchart of another message transmission method provided in this embodiment is shown, where the message transmission method can be applied to the network device 104 in the implementation environment described above. On the basis of the embodiment shown in fig. 7, the step 704 may specifically include the following steps:
In an embodiment of the present application, the stream compression table includes a mapping relationship between a compression coding identifier and a data stream category, and the corresponding data stream category may be obtained through the compression coding identifier. And further, acquiring a corresponding target field in the stream compression table according to the data stream type, wherein the target field comprises a MAC header and an IP field of the IP header.
In an embodiment of the present application, the MAC header in the destination field may include a source MAC field, a destination MAC field, and a TYPE field, and the IP field of the IP header may include a source IP field and a destination IP field. The source MAC field and the destination MAC field are both 6 bytes, the TYPE field is 2 bytes, and the source IP field and the destination IP field are both 4 bytes. Thus, the target field may include 22 bytes.
In another embodiment of the present application, the MAC header further includes at least 1 VLAN field in addition to the source MAC field, the destination MAC field and the TYPE field, wherein the VLAN field is 4 bytes. Thus, the target field may comprise at least 26 bytes.
In an embodiment of the present application, please refer to the message decompression schematic diagram shown in fig. 9, wherein the compressed message at least includes a compressed encoding identifier and a partial IP field. The target field includes a source MAC field, a destination MAC field, a TYPE field, 1 VLAN field, a source IP field, and a destination IP field, and in the decompression process in this embodiment, the compression coding identifier is deleted, and the target field is added to the compressed message from which the compression coding identifier is deleted as a new field, so as to form an original message.
In an embodiment of the present application, the source IP field and the destination IP field are located in a middle portion of the IP header, and in the process of decompressing the packet, the source IP field and the destination IP field are set in corresponding middle positions in the IP header, and the compression coding identifier is deleted, and the MAC field, the destination MAC field, the TYPE field, and 1 VLAN field are set in positions before the restored IP header.
According to the message transmission method provided by the embodiment of the application, the data stream type corresponding to the compression coding identifier is searched in the stream compression table; acquiring a corresponding target field according to the data stream type; the destination field comprises a MAC header and an IP field of the IP header; deleting the compressed code identification in the compressed message, and adding the target field serving as a new field into the compressed message with the compressed code identification deleted to form an original message. The decompression process of the compressed message can be realized, and the decompression efficiency can be ensured and the reliability of the decompression function can be improved in the form of the flow compression table.
Referring to fig. 10, a flowchart of another message transmission method provided in this embodiment is shown, where the message transmission method can be applied to the network device 104 in the implementation environment described above. On the basis of the embodiment shown in fig. 7, the method may further include the following steps:
In an embodiment of the present application, when receiving a synchronization message carrying a mapping relationship between a newly added data stream type and a compression coding identifier, a receiving device stores the synchronization message into a stream compression table of a local device, and after storing, the mapping relationship takes effect immediately, and sends a synchronization confirmation message to a sending device.
According to the message transmission method provided by the embodiment of the application, the synchronous message sent by the sending end equipment is received, and the synchronous message carries the mapping relation between the newly added data stream type and the compressed coding identification; storing the mapping relation between the class of the data stream to be synchronized and the code identification of the compression to be synchronized into a stream compression table; and sending a synchronization confirmation message to the sending terminal equipment. The adaptability of the decompression method to the complex transmission environment is improved, and the transmission efficiency in the complex transmission environment is further improved.
It should be understood that, although the steps in the above-described flowcharts are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in the above-described flowcharts may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or the stages is not necessarily sequential, but may be performed alternately or alternatingly with other steps or at least a portion of the sub-steps or stages of other steps.
Referring to fig. 11, a block diagram of a message transmission apparatus 1100 according to an embodiment of the present application is shown. As shown in fig. 11, the message transmission apparatus 1100 may include: an identification acquisition module 1101, a compression module 1102, and a transmission module 1103, wherein:
an identifier obtaining module 1101, configured to search, according to a target field in an original message, a compression coding identifier corresponding to the target field in a stream compression table; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field of an IP header; the stream compression table is used for representing the mapping relation between the target field and the compression coding identification.
The compressing module 1102 is configured to compress the original packet according to the compression coding identifier, so as to obtain a compressed packet.
The transmission module 1103 is configured to send the compressed packet to the receiving end device, so that the receiving end device performs a decompression operation on the compressed packet according to the compression coding identifier.
In an embodiment of the present application, the compressing module 1102 is specifically configured to: deleting the target field in the original message, and adding the compression coding identification as a new field into the original message after the target field is deleted to form a compressed message.
In an embodiment of the present application, the identifier obtaining module 1101 is specifically configured to:
determining the data stream type of the message according to the target field;
searching whether a data stream category exists in a stream compression table;
and if the stream compression table has the data stream type, acquiring a compression coding identifier corresponding to the data stream type.
In an embodiment of the present application, the identifier obtaining module 1101 is further specifically configured to:
if the data stream type does not exist in the stream compression table;
generating a compression coding identifier corresponding to the data stream category;
storing the mapping relation between the data stream category and the generated compression coding identifier into a stream compression table;
and synchronizing the updated stream compression table to the receiving end equipment.
In an embodiment of the present application, the identifier obtaining module 1101 is further specifically configured to:
sending a synchronization message to receiving end equipment, wherein the synchronization message carries the mapping relation between the data stream category and the generated compression coding identifier;
and receiving the synchronization confirmation message fed back by the receiving terminal equipment.
Referring to fig. 12, a block diagram of a message transmission apparatus 1200 according to an embodiment of the present application is shown. As shown in fig. 12, the message transmission apparatus 1200 may include: a receiving module 1201 and a decompressing module 1202, wherein:
a receiving module 1201, configured to receive a compressed message sent by a sending end device, where the compressed message carries a compressed encoding identifier;
a decompression module 1202, configured to perform a decompression operation on the compressed packet according to the compression coding identifier and the stream compression table, so as to obtain an original packet; the stream compression table is used for representing the mapping relation between the target field and the compression coding identification.
In an embodiment of the present application, the decompression module 1202 is specifically configured to:
searching a data stream category corresponding to the compression coding identification in the stream compression table;
acquiring a corresponding target field according to the data stream type; the destination field comprises a MAC header and an IP field of the IP header;
deleting the compressed code identification in the compressed message, and adding the target field serving as a new field into the compressed message with the compressed code identification deleted to form an original message.
In an embodiment of the present application, the decompression module 1202 is further specifically configured to:
receiving a synchronous message sent by sending end equipment, wherein the synchronous message carries a mapping relation between a newly added data stream type and a compression coding identifier;
storing the mapping relation between the class of the data stream to be synchronized and the code identification of the compression to be synchronized into a stream compression table;
and sending a synchronization confirmation message to the sending terminal equipment.
For the specific limitation of the message transmission apparatus, reference may be made to the above limitation on the message transmission method, which is not described herein again. All or part of each module in the message transmission device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 13. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a message transmission method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 13 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
according to a target field in an original message, searching a compression coding identifier corresponding to the target field in a stream compression table; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field of an IP header; the stream compression table is used for expressing the mapping relation between the target field and the compression coding identification;
compressing the original message according to the compression coding identifier to obtain a compressed message;
and sending the compressed message to the receiving end equipment so that the receiving end equipment decompresses the compressed message according to the compression coding identification.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
receiving a compressed message sent by sending end equipment, wherein the compressed message carries a compressed coding identifier;
decompressing the compressed message according to the compressed coding identifier and the stream compression table to obtain an original message; the stream compression table is used for representing the mapping relation between the target field and the compression coding identification.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
according to a target field in an original message, searching a compression coding identifier corresponding to the target field in a stream compression table; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field of an IP header; the stream compression table is used for expressing the mapping relation between the target field and the compression coding identification;
compressing the original message according to the compression coding identifier to obtain a compressed message;
and sending the compressed message to the receiving end equipment so that the receiving end equipment decompresses the compressed message according to the compression coding identification.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
receiving a compressed message sent by sending end equipment, wherein the compressed message carries a compressed coding identifier;
decompressing the compressed message according to the compressed coding identifier and the stream compression table to obtain an original message; the stream compression table is used for representing the mapping relation between the target field and the compression coding identification.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (14)
1. A method for packet transmission, the method comprising:
according to a target field in an original message, searching a compression coding identifier corresponding to the target field in a stream compression table; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field of an IP header; the stream compression table is used for expressing the mapping relation between the target field and the compression coding identification;
compressing the original message according to the compressed coding identifier to obtain a compressed message;
and sending the compressed message to a receiving end device so that the receiving end device decompresses the compressed message according to the compressed coding identification.
2. The method according to claim 1, wherein said compressing the original packet according to the compression coding identifier to obtain a compressed packet comprises:
and deleting the target field in the original message, and adding the compressed coding identifier as a new field into the original message after the target field is deleted to form the compressed message.
3. The method of claim 1, wherein said looking up a corresponding compression coding identifier in a stream compression table according to a target field in an original message comprises:
determining the data flow type of the message according to the target field;
looking up whether the data stream class exists in the stream compression table;
and if the data stream type exists in the stream compression table, acquiring a compression coding identifier corresponding to the data stream type.
4. The method of claim 3, further comprising:
if the data stream type does not exist in the stream compression table;
generating a compression coding identifier corresponding to the data stream category;
storing the mapping relation between the data stream category and the generated compression coding identifier into the stream compression table;
and synchronizing the updated stream compression table to the receiving end equipment.
5. The method of claim 4, wherein synchronizing the updated stream compression table to the sink device comprises:
sending a synchronization message to the receiving end equipment, wherein the synchronization message carries the mapping relation between the data stream type and the generated compression coding identifier;
and receiving the synchronization confirmation message fed back by the receiving terminal equipment.
6. A method for packet transmission, the method comprising:
receiving a compressed message sent by sending end equipment, wherein the compressed message carries a compressed coding identifier;
decompressing the compressed message according to the compressed coding identifier and the stream compression table to obtain an original message; the stream compression table is used for representing the mapping relation between the target field and the compression coding identification.
7. The method of claim 6, wherein decompressing the compressed packet according to the codec identifier comprises:
searching a data stream category corresponding to the compression coding identification in the stream compression table;
acquiring a corresponding target field according to the data stream type; the destination field comprises a MAC header and an IP field of an IP header;
and deleting the compression coding identification in the compressed message, and adding the target field serving as a new field into the compressed message with the compression coding identification deleted to form the original message.
8. The method of claim 6, further comprising:
receiving a synchronization message sent by the sending end equipment, wherein the synchronization message carries a mapping relation between a newly added data stream type and a compression coding identifier;
storing the mapping relation between the class of the data stream to be synchronized and the code identification of the compression to be synchronized into the stream compression table;
and sending a synchronization confirmation message to the sending terminal equipment.
9. A message transmission apparatus, the apparatus comprising:
the identification acquisition module is used for searching a compression coding identification corresponding to a target field in a stream compression table according to the target field in an original message; the target field comprises a Media Access Control (MAC) header and an Internet Protocol (IP) field of an IP header; the stream compression table is used for expressing the mapping relation between the target field and the compression coding identification;
the compression module is used for compressing the original message according to the compression coding identifier to obtain a compressed message;
and the transmission module is used for sending the compressed message to receiving end equipment so that the receiving end equipment decompresses the compressed message according to the compressed coding identification.
10. A message transmission apparatus, the apparatus comprising:
the receiving module is used for receiving a compressed message sent by sending end equipment, and the compressed message carries a compressed coding identifier;
the decompression module is used for carrying out decompression operation on the compressed message according to the compression coding identifier and the stream compression table so as to obtain an original message; the stream compression table is used for representing the mapping relation between the target field and the compression coding identification.
11. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 5 when executing the computer program.
12. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 6 to 8 when executing the computer program.
13. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 5.
14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 6 to 8.
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