CN115550417B - Method for reducing transmission delay between different operators of multi-link equipment - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
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- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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- H—ELECTRICITY
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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
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a method for reducing transmission delay between different operators of a multi-link device, which comprises the following steps: determining a transmission object; respectively installing multi-link equipment in the transmission objects; establishing transmission connection among the transmission objects according to the operator in the transmission objects aiming at the multi-link equipment, and establishing the transmission connection among the transmission objects; and transmitting among the transmission objects through the transmission connection based on a TCP/IP response mechanism. The invention provides a method for reducing transmission delay between different operators of a multi-link device, which adopts TCP acceleration, terminal devices intelligently judge the operators, ensure that the same operators are used by both sides, improve the data rate sent by users, ensure the data transmission data quantity between the multi-link devices, play the advantages of the multi-link device, greatly improve the user experience and achieve win-win effect.
Description
Technical Field
The invention relates to the technical field of data transmission, in particular to a method for reducing transmission delay among different operators of multi-link equipment.
Background
The invention provides a method for reducing the transmission delay between different operators of a multi-link device, which adopts TCP acceleration, intelligently judges the operators by terminal equipment, ensures that both sides use the same operators, improves the data rate sent by the users, ensures the data transmission data quantity among the multi-link devices, can play the advantages of the multi-link device, greatly improves the experience of the users and achieves the win-win effect, although the CDN can redirect the user request to the service node closest to the users in real time according to the network flow, the connection of each node, the load condition, the distance from the users, the response time and other comprehensive information, and the like.
Disclosure of Invention
The present invention is directed to a method for reducing transmission delay between different operators of a multi-link device, so as to solve the above-mentioned problems in the related art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a method of reducing transmission delay between different operators of a multi-link device, comprising:
determining a transmission object;
respectively installing multi-link equipment in the transmission objects;
establishing transmission connection among the transmission objects according to the operator in the transmission objects aiming at the multi-link equipment, and establishing the transmission connection among the transmission objects;
and transmitting among the transmission objects through the transmission connection based on a TCP/IP response mechanism.
Further, the transmission objects are divided into a first transmission object and a second transmission object, wherein the first transmission object is a user initiating connection establishment first, and the second transmission object is a user establishing connection according to link matching of the first transmission object.
Further, the number of users in the second transmission object is one or more, when the number of users in the second transmission object is more, each user in the second transmission object installs a multi-link device, and links are matched according to the first transmission object to establish connection.
Further, the multi-link device includes: and the TCP acceleration module is used for accelerating according to the data rate sent by the operator for the transmission object.
Further, the TCP acceleration module includes: the TCP acceleration module determines whether to adopt double-sided TCP acceleration or single-sided TCP acceleration according to transmission data when accelerating, and comprises: intercepting a second TCP data packet, and judging whether the second TCP data packet contains identification information supporting acceleration or not to obtain a first judging result; intercepting a first TCP data packet, analyzing whether the second TCP data packet contains identification information supporting acceleration according to the first judgment result, if so, carrying out bilateral acceleration on the first TCP data packet, and then sending the first TCP data packet to a destination end corresponding to the first TCP data packet; if not, carrying out unilateral acceleration on the first TCP data packet, and then sending the first TCP data packet to a destination end corresponding to the first TCP data packet; the source end direction corresponding to the second TCP data packet is the destination end direction corresponding to the first TCP data packet.
Further, according to the operator in the transmission objects building the transmission connection between the transmission objects for the multi-link device, the method for building the transmission connection between the transmission objects includes: and initiating a connection establishment request in the first transmission object, matching the second transmission object in the installed multi-link equipment according to the connection establishment request to obtain a matching result, and when the matching result is that the same operator link as the first transmission object exists in the second transmission object, using the matched operator link as a target transmission link in the second transmission object, establishing transmission connection, and transmitting the transmission connection with the first transmission object through the target transmission link.
Further, initiating a connection establishment request in the first transmission object, including: and in the first transmission object, initiating a connection establishment signal aiming at the second connection object, monitoring and detecting the connection establishment signal by the TCP acceleration module, extracting information aiming at the connection establishment signal, extracting and processing the address and the operator information in the connection establishment signal, obtaining a connection establishment request according to the address and the operator information, and transmitting the connection establishment request to the second transmission object.
Further, when the transmission connection is performed between the transmission objects based on the TCP/IP response mechanism, the first transmission object performs segmentation on the data to be transmitted, a first segmentation data segment is obtained in the first transmission object, then the first segmentation data segment is transmitted to a second transmission object according to the TCP/IP response mechanism, or the second transmission object performs segmentation on the data to be transmitted, a second segmentation data segment is obtained in the second transmission object, and then the second segmentation data segment is transmitted to the first transmission object according to the TCP/IP response mechanism.
Further, the TCP/IP reply mechanism includes two cases, one is that transmission data is received, and the other is that no transmission data is received, where the received transmission data refers to that the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is received in the second transmission object or the first transmission object, then integrity analysis is performed on the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment, and when the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is complete, receiving feedback is performed on the second transmission object or the first transmission object, and after receiving the receiving feedback, the second transmission object or the first transmission object continuously transmits the next first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment until the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is transmitted; the fact that the transmission data is not received means that the second transmission object or the first transmission object still does not receive the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment when the preset time expires, at this time, the first transmission object or the second transmission object performs feedback of the transmission data not received to the second transmission object or the first transmission object, and the first transmission object or the second transmission object performs transmission again to the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment to the second transmission object.
Further, before the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is transmitted according to a TCP/IP response mechanism, the first transmission object or the second transmission object performs encryption processing on the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment, and the encryption processing includes: determining an original protocol version number of a transmission protocol used by the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment; expanding the original protocol version number to obtain an expanded protocol version number; generating a key label according to a process identifier of an encryption process, a key identifier of an encryption key and a mode identifier of a designated encryption mode; the designated encryption mode is used for reducing the encrypted data volume of the target media segment; encrypting the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment according to the encryption process and the encryption key and the appointed encryption mode to obtain an encrypted first segmentation to-be-transmitted data segment or an encrypted second segmentation to-be-transmitted data segment; generating a transmission list according to the expansion protocol version number, the key tag and the encrypted first segmentation to-be-transmitted data fragment or the encrypted second segmentation to-be-transmitted data fragment identifier; and transmitting according to the transmission list and the TCP/IP response mechanism.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a schematic diagram of a method for reducing transmission delay between different operators of a multi-link device according to the present invention;
fig. 2 is a schematic diagram of a method for reducing transmission delay between different operators of a multi-link device according to the present invention;
fig. 3 is a schematic diagram of a TCP acceleration module in a method for reducing transmission delay between different operators of a multi-link device according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
As shown in fig. 1, an embodiment of the present invention provides a method for reducing transmission delay between different operators of a multi-link device, including:
step one, determining a transmission object;
step two, respectively installing multi-link equipment in the transmission objects;
step three, establishing transmission connection among the transmission objects according to the operator in the transmission objects aiming at the multi-link equipment, and establishing the transmission connection among the transmission objects;
and step four, transmitting among the transmission objects through the transmission connection based on a TCP/IP response mechanism.
The above technical solution provides a method for reducing transmission delay between different operators of a multi-link device, as shown in fig. 2, when transmission is performed, firstly, a transmission object is confirmed, and a user a and a user B of the transmission object are explicitly transmitted; then respectively installing multi-link equipment in a transmission object, so that the multi-link equipment is installed in a user A, and the multi-link equipment is also installed in a user B, wherein the multi-link equipment is provided with a plurality of operator links such as mobile, communication, telecommunication, radio and television links, and then constructing transmission connection among the transmission objects according to operators in the transmission object aiming at the multi-link equipment, and matching and corresponding the multi-link equipment in the user A and the multi-link equipment in the user B, so as to establish the transmission connection between the transmission object user A and the user B; and then transmitting between the transmission object user A and the user B through the transmission connection between the transmission object user A and the user B according to a TCP/IP response mechanism.
According to the technical scheme, the multilink devices are respectively installed in the transmission objects, so that various operator links such as mobile, communication, telecommunication, broadcast television and the like are arranged in each transmission object, the transmission is applicable to various operator conditions such as mobile, communication, telecommunication, broadcast television and the like, the transmission can be accelerated through the transmission connection between the transmission object user A and the user B according to the TCP/IP response mechanism, the transmission delay between different operators of the multilink devices is reduced under the condition that the data transmission data quantity between the multilink devices is ensured, the experience of the transmission objects is improved, and the win-win effect is achieved.
In one embodiment provided by the invention, the transmission objects are divided into a first transmission object and a second transmission object, wherein the first transmission object is a user initiating connection establishment at first, and the second transmission object is a user establishing connection according to link matching of the first transmission object.
The transmission objects in the technical scheme are divided into a first transmission object and a second transmission object, wherein the first transmission object is a user initiating connection establishment at first, the second transmission object is a user establishing connection according to link matching of the first transmission object, the first transmission object is user A, the second transmission object is user B, when transmission is carried out, the user A initiates an attempt to establish connection with the user B at first, signals for establishing connection are sent out from the user A, and the user B is matched according to signals for establishing connection sent out by the user A, so that connection is established according to a matching result.
According to the technical scheme, the transmission objects are distinguished through the first transmission object and the second transmission object, so that the user A and the user B are clearly distinguished during transmission, confusion during connection establishment is avoided, and meanwhile, the transmission accuracy can be ensured.
In one embodiment of the present invention, the number of users in the second transmission object is one or more, and when the number of users in the second transmission object is more, each user in the second transmission object installs a multi-link device, and performs link matching according to the first transmission object to establish a connection.
According to the technical scheme, the number of the users in the second transmission object is one or more, when the number of the users in the second transmission object is one, the users in the first transmission object and the users in the second transmission object perform one-to-one transmission, when the number of the users in the second transmission object is more, each user in the second transmission object is provided with a multi-link device, and link matching is performed according to the first transmission object to establish connection, so that the users in the first transmission object and the users in the second transmission object perform one-to-many transmission.
According to the technical scheme, the number of the users in the second transmission object can be one or two or more, so that the transmission delay can be reduced between one-to-one users during transmission, and the transmission delay can be reduced during transmission between one-to-many users, the application range is enlarged, and the transmission method is not limited to transmission between one-to-one users.
In one embodiment provided by the present invention, the multi-link device includes: and the TCP acceleration module is used for accelerating according to the data rate sent by the operator for the transmission object.
The multi-link device in the above technical solution includes: and the TCP acceleration module is used for accelerating the data rate according to the transmission data of an operator when the transmission connection between the transmission objects is built or the transmission is carried out.
According to the technical scheme, the TCP acceleration module accelerates the data rate of the transmission data in the transmission process, so that the transmission delay is reduced, the purpose of reducing the transmission delay can be achieved without purchasing CDN acceleration, the flow is simple, convenient and easy to achieve, and the cost can be saved.
As shown in fig. 3, in one embodiment provided by the present invention, the TCP acceleration module includes: the TCP acceleration module determines whether to adopt double-sided TCP acceleration or single-sided TCP acceleration according to transmission data when accelerating, and comprises: intercepting a second TCP data packet, and judging whether the second TCP data packet contains identification information supporting acceleration or not to obtain a first judging result; intercepting a first TCP data packet, analyzing whether the second TCP data packet contains identification information supporting acceleration according to the first judgment result, if so, carrying out bilateral acceleration on the first TCP data packet, and then sending the first TCP data packet to a destination end corresponding to the first TCP data packet; if not, carrying out unilateral acceleration on the first TCP data packet, and then sending the first TCP data packet to a destination end corresponding to the first TCP data packet; the source end direction corresponding to the second TCP data packet is the destination end direction corresponding to the first TCP data packet.
The TCP acceleration module in the above technical scheme includes: the method for determining whether the double-sided TCP acceleration or the single-sided TCP acceleration is adopted or determined by the TCP acceleration module according to transmission data when the TCP acceleration module accelerates comprises the following steps: intercepting a second TCP data packet, and judging whether the second TCP data packet contains identification information supporting acceleration or not to obtain a first judging result; intercepting a first TCP data packet, analyzing whether the second TCP data packet contains identification information supporting acceleration according to a first judgment result, if so, carrying out bilateral acceleration on the first TCP data packet, and then sending the first TCP data packet to a destination end corresponding to the first TCP data packet; if not, carrying out unilateral acceleration on the first TCP data packet, and then sending the first TCP data packet to a destination end corresponding to the first TCP data packet; the source end direction corresponding to the second TCP data packet is the destination end direction corresponding to the first TCP data packet.
According to the technical scheme, on the premise that the terminal application program is not modified by the TCP acceleration module, better flow can be provided compared with a Transmission Control Protocol (TCP) connecting line of a common standard, so that the data rate is improved, the transmission delay is reduced, the TCP acceleration module is wide in adaptability and flexible by adopting double-side TCP acceleration and single-side TCP acceleration according to transmission data determination, functions of compression, buffering and the like can be directly realized, diversified special functions are realized, and the user experience is remarkably improved.
In one embodiment of the present invention, the establishing a transmission connection between the transmission objects according to the transmission connection between the transmission objects established by an operator in the transmission objects for the multi-link device includes: and initiating a connection establishment request in the first transmission object, matching the second transmission object in the installed multi-link equipment according to the connection establishment request to obtain a matching result, and when the matching result is that the same operator link as the first transmission object exists in the second transmission object, using the matched operator link as a target transmission link in the second transmission object, establishing transmission connection, and transmitting the transmission connection with the first transmission object through the target transmission link.
According to the technical scheme, when the transmission connection between the transmission objects is established according to operators in the transmission objects aiming at the multi-link equipment, the transmission connection intention is firstly established in the first transmission object, the connection establishment request is initiated to the second transmission object, the second transmission object receives the connection establishment request transmitted by the first transmission object and then carries out the matching of the operators in the installed multi-link equipment according to the connection establishment request, so that a matching result is obtained, if the matching result is that the same operator link exists in the second transmission object as the first transmission object, the matched operator link is used as a target transmission link in the second transmission object, the transmission connection is established aiming at the target transmission link, and then the first transmission object and the second transmission object are transmitted through the target transmission link.
According to the technical scheme, the connection establishment request is initiated in the first transmission object, so that the first transmission object can establish transmission connection with the second transmission object in a targeted manner, the transmission between the first transmission object and the second transmission object can be accurately and rapidly realized, transmission errors are avoided, meanwhile, the second transmission object adopts the same operator link as the first transmission object to carry out transmission connection, and the first transmission object and the second transmission object adopt the same operator link, so that transmission delay is reduced.
In one embodiment provided by the present invention, initiating a connection establishment request in the first transmission object includes: and in the first transmission object, initiating a connection establishment signal aiming at the second connection object, monitoring and detecting the connection establishment signal by the TCP acceleration module, extracting information aiming at the connection establishment signal, extracting and processing the address and the operator information in the connection establishment signal, obtaining a connection establishment request according to the address and the operator information, and transmitting the connection establishment request to the second transmission object.
When a connection establishment request is initiated in a first transmission object, a connection establishment signal aiming at a second connection object is initiated in the first transmission object, a TCP acceleration module monitors whether the connection establishment signal is generated or not, and when the connection establishment signal is detected, information extraction is carried out on the connection establishment signal, other information except address and operator information in the connection establishment signal is intercepted, the address and the operator information in the connection establishment signal are extracted and processed, then the connection establishment request is obtained according to the address and the operator information, and the connection establishment request is transmitted to the second transmission object.
According to the technical scheme, the address and the operator information are mainly included in the connection establishment request through intercepting other information except the address and the operator information in the connection establishment signal and extracting the address and the operator information in the connection establishment signal, so that interference of other irrelevant information is avoided, and meanwhile the size of transmission data of a first transmission object when the connection establishment request is transmitted to a second transmission object can be reduced.
In one embodiment of the present invention, when transmitting between the transmission objects through the transmission connection based on the TCP/IP response mechanism, the first transmission object performs segmentation on the data to be transmitted, obtains a first segmentation data segment to be transmitted in the first transmission object, and then transmits the first segmentation data segment to be transmitted to a second transmission object according to the TCP/IP response mechanism, or the second transmission object performs segmentation on the data to be transmitted, obtains a second segmentation data segment to be transmitted in the second transmission object, and then transmits the second segmentation data segment to be transmitted to the first transmission object according to the TCP/IP response mechanism.
According to the technical scheme, when transmission is carried out between transmission objects through transmission connection based on a TCP/IP response mechanism, the first transmission object is used for segmenting data to be transmitted, a first segmentation data segment to be transmitted is obtained in the first transmission object, then the first segmentation data segment to be transmitted is transmitted to the second transmission object according to the TCP/IP response mechanism, or the second transmission object is used for segmenting the data to be transmitted, a second segmentation data segment to be transmitted is obtained in the second transmission object, and then the second segmentation data segment to be transmitted is transmitted to the first transmission object according to the TCP/IP response mechanism.
According to the technical scheme, the data to be transmitted is split, so that transmission abnormality is avoided when larger data to be transmitted is transmitted, the loss phenomenon of the transmitted data is reduced, and meanwhile, the transmission efficiency can be improved.
In one embodiment of the present invention, the TCP/IP response mechanism includes two cases, one is that transmission data is received, and one is that no transmission data is received, where the received transmission data is that the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is received in the second transmission object or the first transmission object, then integrity analysis is performed on the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment, and when the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is complete, receiving feedback is performed on the second transmission object or the first transmission object, and after receiving the receiving feedback, the second transmission object or the first transmission object continuously transmits the next first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment until the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is completed; the fact that the transmission data is not received means that the second transmission object or the first transmission object still does not receive the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment when the preset time expires, at this time, the first transmission object or the second transmission object performs feedback of the transmission data not received to the second transmission object or the first transmission object, and the first transmission object or the second transmission object performs transmission again to the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment to the second transmission object.
The TCP/IP response mechanism in the above technical solution includes two cases, one is that transmission data is received, and the other is that no transmission data is received, where the reception of transmission data refers to that a first segmentation to-be-transmitted data segment or a second segmentation to-be-transmitted data segment is received in a second transmission object or a first transmission object, then integrity analysis is performed on the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment, and when the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is complete, receiving feedback is performed on the second transmission object or the first transmission object, and after receiving the receiving feedback, the second transmission object or the first transmission object continues to transmit the next first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment until the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is transmitted; the fact that the transmission data is not received means that the second transmission object or the first transmission object still does not receive the first segmentation data segment to be transmitted or the second segmentation data segment to be transmitted when the preset time expires, at this time, the first transmission object or the second transmission object feeds back the transmission data to the second transmission object or the first transmission object, and the first transmission object or the second transmission object transmits the first segmentation data segment to be transmitted or the second segmentation data segment to be transmitted to the second transmission object again. The preset time is determined by the following formula:
in the above formula, L i Representing the preset time X of the ith first segmentation data segment to be transmitted or the second segmentation data segment to be transmitted i Representing the ith first partial data to be transmittedThe size of the segment or the second segment of the data to be transmitted, V represents the average transmission rate of the transmission link, T represents the width of the digital pulse signal, K represents the number of binary information bits, S represents the size of the feedback signal, and N represents the number of discrete values taken by one symbol.
According to the technical scheme, the effectiveness of transmission is ensured through the received transmission data and the non-received transmission data, the success rate of transmission is improved, abnormal phenomena such as data loss or interception of the transmission data in the transmission process are avoided, and therefore the safety of the transmission data received in the second transmission object or the first transmission object is improved, and meanwhile the integrity of the received transmission data is also improved.
In one embodiment provided by the invention, the first transmission object or the second transmission object encrypts the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment before the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is transmitted according to a TCP/IP response mechanism, and the encryption process includes: determining an original protocol version number of a transmission protocol used by the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment; expanding the original protocol version number to obtain an expanded protocol version number; generating a key label according to a process identifier of an encryption process, a key identifier of an encryption key and a mode identifier of a designated encryption mode; the designated encryption mode is used for reducing the encrypted data volume of the target media segment; encrypting the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment according to the encryption process and the encryption key and the appointed encryption mode to obtain an encrypted first segmentation to-be-transmitted data segment or an encrypted second segmentation to-be-transmitted data segment; generating a transmission list according to the expansion protocol version number, the key tag and the encrypted first segmentation to-be-transmitted data fragment or the encrypted second segmentation to-be-transmitted data fragment identifier; and transmitting according to the transmission list and the TCP/IP response mechanism.
In the above technical solution, before the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is transmitted according to the TCP/IP response mechanism, the encryption processing is performed on the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment by the first transmission object or the second transmission object, where the encryption processing process includes: determining an original protocol version number of a transmission protocol used for first segmentation of the data segment to be transmitted or second segmentation of the data segment to be transmitted; expanding the original protocol version number to obtain an expanded protocol version number; generating a key label according to a process identifier of an encryption process, a key identifier of an encryption key and a mode identifier of a designated encryption mode; designating an encryption mode for reducing an amount of encrypted data of the target media segment; encrypting the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment according to an appointed encryption mode according to an encryption process and an encryption key to obtain an encrypted first segmentation to-be-transmitted data segment or an encrypted second segmentation to-be-transmitted data segment; generating a transmission list according to the expansion protocol version number, the key label and the encrypted first segmentation to-be-transmitted data fragment or the encrypted second segmentation to-be-transmitted data fragment identifier; and transmitting according to the transmission list and the TCP/IP response mechanism. The generating a transmission list according to the expansion protocol version number, the key label and the encrypted first segmentation to-be-transmitted data segment or the encrypted second segmentation to-be-transmitted data segment identifier comprises the following steps: the algorithm attribute in the key label is configured according to the process identifier of the encryption process, the key attribute of the key label is configured according to the key identifier, and the mode attribute in the key label is set according to the mode identifier of the appointed encryption mode, so that the key label is obtained.
According to the technical scheme, the first transmission object or the second transmission object encrypts the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment according to the TCP/IP response mechanism before the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is transmitted, so that the safety of the first transmission object and the second transmission object in transmitting is improved, the loss of transmission data caused by interference of external equipment or external signals is avoided, a transmission list is generated in the encryption process, the confusion of the transmission data before the first transmission object and the second transmission object is avoided, the orderly operation of the transmission process is guaranteed, and meanwhile, the to-be-transmitted data before encryption can be conveniently obtained in the transmission object receiving the transmission data.
It will be appreciated by those skilled in the art that the first and second aspects of the present invention refer only to different phases of application.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. A method for reducing transmission delay between different operators of a multi-link device, comprising:
determining a transmission object; the transmission objects are divided into a first transmission object and a second transmission object, wherein the first transmission object is a user initiating connection establishment at first, and the second transmission object is a user establishing connection according to link matching of the first transmission object;
respectively installing multi-link equipment in the transmission objects; the multi-link device comprises: the TCP acceleration module is used for accelerating according to the data rate sent by the operator for the transmission object; the TCP acceleration module includes: the TCP acceleration module determines whether to adopt double-sided TCP acceleration or single-sided TCP acceleration according to transmission data when accelerating, and comprises: intercepting a second TCP data packet, and judging whether the second TCP data packet contains identification information supporting acceleration or not to obtain a first judging result; intercepting a first TCP data packet, analyzing whether the second TCP data packet contains identification information supporting acceleration according to the first judgment result, if so, carrying out bilateral acceleration on the first TCP data packet, and then sending the first TCP data packet to a destination end corresponding to the first TCP data packet; if not, carrying out unilateral acceleration on the first TCP data packet, and then sending the first TCP data packet to a destination end corresponding to the first TCP data packet; the source end direction corresponding to the second TCP data packet is the destination end direction corresponding to the first TCP data packet;
establishing transmission connection among the transmission objects according to the operator in the transmission objects aiming at the multi-link equipment, and establishing the transmission connection among the transmission objects;
and transmitting among the transmission objects through the transmission connection based on a TCP/IP response mechanism.
2. The method of claim 1, wherein the number of users in the second transmission object is one or more, and when the number of users in the second transmission object is more, each user in the second transmission object installs a multi-link device and performs link matching according to the first transmission object to establish a connection.
3. The method according to claim 1, wherein establishing a transport connection between the transport objects according to an operator in the transport objects establishing a transport connection between the transport objects for the multi-link device comprises: and initiating a connection establishment request in the first transmission object, matching the second transmission object in the installed multi-link equipment according to the connection establishment request to obtain a matching result, and when the matching result is that the same operator link as the first transmission object exists in the second transmission object, using the matched operator link as a target transmission link in the second transmission object, establishing transmission connection, and transmitting the transmission connection with the first transmission object through the target transmission link.
4. A method according to claim 3, characterized in that initiating a connection establishment request in the first transport object comprises: and in the first transmission object, a connection establishment signal aiming at the second transmission object is initiated, a TCP acceleration module monitors and detects the connection establishment signal, then information extraction is carried out on the connection establishment signal, the address and the operator information in the connection establishment signal are extracted and processed, a connection establishment request is obtained according to the address and the operator information, and the connection establishment request is transmitted to the second transmission object.
5. The method according to claim 1, wherein when transmitting between the transmission objects through the transmission connection based on a TCP/IP response mechanism, the first transmission object performs segmentation on data to be transmitted, a first segmentation data segment to be transmitted is obtained in the first transmission object, and then the first segmentation data segment to be transmitted is transmitted to a second transmission object according to the TCP/IP response mechanism, or the second transmission object performs segmentation on data to be transmitted, a second segmentation data segment to be transmitted is obtained in the second transmission object, and then the second segmentation data segment to be transmitted is transmitted to the first transmission object according to the TCP/IP response mechanism.
6. The method according to claim 5, wherein the TCP/IP reply mechanism includes two cases, one is that transmission data is received and one is that no transmission data is received, the received transmission data is that the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is received in the second transmission object or the first transmission object, then integrity analysis is performed on the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment, and when the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is complete, receiving feedback is performed to the second transmission object or the first transmission object, and the next first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment continues to be transmitted until the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment is completed after receiving the receiving feedback; the fact that the transmission data are not received means that the second transmission object or the first transmission object still does not receive the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment when the preset time expires, at this time, the first transmission object or the second transmission object performs feedback of the transmission data to the second transmission object or the first transmission object, and the first transmission object or the second transmission object performs transmission to the second transmission object or the first transmission object again for the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment.
7. The method according to claim 6, wherein the first or second transmission object encrypts the first or second data segment to be transmitted before transmission according to a TCP/IP acknowledgement mechanism, and the encrypting process includes: determining an original protocol version number of a transmission protocol used by the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment; expanding the original protocol version number to obtain an expanded protocol version number; generating a key label according to a process identifier of an encryption process, a key identifier of an encryption key and a mode identifier of a designated encryption mode; the appointed encryption mode is used for reducing the encrypted data quantity of the target media fragment; encrypting the first segmentation to-be-transmitted data segment or the second segmentation to-be-transmitted data segment according to the encryption process and the encryption key and the appointed encryption mode to obtain an encrypted first segmentation to-be-transmitted data segment or an encrypted second segmentation to-be-transmitted data segment; generating a transmission list according to the expansion protocol version number, the key tag and the encrypted first segmentation to-be-transmitted data fragment or the encrypted second segmentation to-be-transmitted data fragment identifier; and transmitting according to the transmission list and the TCP/IP response mechanism.
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