CN116133046A - Signal transmission system with multiple link outputs - Google Patents

Signal transmission system with multiple link outputs Download PDF

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Publication number
CN116133046A
CN116133046A CN202211633772.XA CN202211633772A CN116133046A CN 116133046 A CN116133046 A CN 116133046A CN 202211633772 A CN202211633772 A CN 202211633772A CN 116133046 A CN116133046 A CN 116133046A
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China
Prior art keywords
transmission
multilink
link
communication
identification
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CN202211633772.XA
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Chinese (zh)
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张宏燕
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Individual
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Individual
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Priority to CN202211633772.XA priority Critical patent/CN116133046A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/90—Buffering arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/90—Buffering arrangements
    • H04L49/9057—Arrangements for supporting packet reassembly or resequencing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses a signal transmission method of multilink output, which is applied to a signal transmission system of multilink output, and comprises the following steps: constructing a multi-link transmission frame of the Internet of vehicles, centering on an intelligent identification aggregation router through an identification network, and distributing a unique component identification for each network equipment component in the frame through the intelligent identification aggregation router; dividing all network components in the transmission frame network topology into three groups; the basic communication of the multilink transmission framework is realized, and the basic communication flow of the internet of vehicles multilink transmission framework comprises the following steps: smart identification mobile router registration process, user registration process, data communication process and smart identification mobile router message advertisement; optimizing the disorder problem of transmission in the link communication process; further, the BNNC multilink transmission method improves the transmission reliability of the transmission frame, and the invention has the characteristics of improving the transmission rate and the reliability of the link communication.

Description

Signal transmission system with multiple link outputs
Technical Field
The invention relates to the technical field of signal transmission, in particular to a signal transmission system with multilink output.
Background
The internet of vehicles is an important application scene of future mobile communication, and three networks are mainly integrated through a new generation information communication technology, namely, the in-vehicle network, the inter-vehicle network and the vehicle-mounted mobile internet are integrated, and how to upload mass data generated by traditional network equipment to a cloud server in real time and efficiently through the internet of vehicles is an important requirement. Most of the existing internet of vehicles research is based on the existing internet, the transmission performance of the internet of vehicles is improved to a certain extent through different technologies and methods, part of the demands of users are met, and meanwhile, the existing multilink transmission method is limited by severe link conditions caused by incompatibility of a traditional network device with a multilink transmission protocol and a complex mobile environment, and cannot meet the demands. Therefore, it is necessary to design a multi-link output signal transmission system that improves the transmission rate and reliability of link communications.
Disclosure of Invention
The present invention is directed to a signal transmission system with multiple link outputs, so as to solve the above-mentioned problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: a method of signal transmission for a multilink output, the method comprising:
constructing a multi-link transmission frame of the Internet of vehicles;
basic communication of a multilink transmission framework is realized;
optimizing the disorder problem of transmission in the link communication process;
further, the transmission reliability of the transmission frame is improved through the BNNC multilink transmission method.
According to the above technical scheme, the construction of the internet of vehicles multilink transmission frame comprises:
through the identification network, the intelligent identification aggregation router is used as a center, and a unique component identification is distributed to each network equipment component in the framework through the intelligent identification aggregation router;
dividing all network components in a transport frame network topology into three groups, including: cloud resource service groups, wireless access network device groups, and user terminal network device component groups.
According to the above technical solution, the implementing basic communication of the multilink transmission framework includes:
the basic communication flow of the internet of vehicles multilink transmission framework comprises the following steps: smart identification mobile router registration procedures, user registration procedures, data communication procedures, and smart identification mobile router message advertisement.
According to the above technical solution, the optimizing the problem of disorder transmitted in the link communication process includes:
dynamically increasing queuing delay of out-of-order data packets through RAID receiving buffer;
and judging whether the first data packet in the buffer memory is overtime or not according to the set time threshold.
According to the above technical solution, the further improving the transmission reliability of the transmission frame by using the BNNC multilink transmission method includes:
generating a series of continuous data packets by the user terminal network equipment, mapping the data packets one by one and forming a coding cluster;
after the intelligent identification aggregation router receives the coding cluster, the coding cluster is decoded and the original data packet is restored.
According to the above technical solution, the system for transmitting signals with multiple link outputs includes:
the multi-link transmission frame construction module is used for constructing a multi-link transmission frame;
and the signal transmission optimization module is used for optimizing the signal transmission process.
According to the above technical solution, the multilink transmission frame construction module includes:
the component identifier allocation module is used for allocating unique component identifiers for the network equipment components;
the group classification module is used for classifying groups of the network components;
and the multilink transmission communication module is used for realizing basic communication of the multilink transmission framework.
According to the above technical solution, the multilink transmission communication module includes:
a router registration unit for registering the smart identification mobile router;
a user registration unit for registering a user;
a data communication unit for realizing data communication;
and the message advertising unit is used for advertising the messages among the routers.
According to the above technical solution, the signal transmission optimization module includes:
the transmission disorder optimization module is used for optimizing transmission disorder;
the packet loss processing module is used for processing the packet loss of the data;
and the BNC encoding and decoding module is used for improving the transmission efficiency through BNC encoding and decoding.
Compared with the prior art, the invention has the following beneficial effects: the invention establishes the transmission service mapping from the intelligent identification mobile router to the signal-to-noise ratio through the establishment of the multilink transmission frame construction module and the signal transmission optimization module, and maintains reliable connection; establishing link resource mapping through heterogeneous wireless links in a wireless access network equipment group, wherein each link resource mapping is unreliable to cope with possible interruption at any time, and further ensuring cross-region movement of the transmission frame; under the condition of ensuring that the transmission of the upper layer time delay sensitive application is not overtime, the RAID receiving buffer memory is used for dynamically increasing the queuing time delay of the out-of-order data packet, and the ordered transmission of the data arriving through the link is ensured, so that the resource utilization rate in the heterogeneous wireless link transmission process is improved.
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 flowchart of a method for transmitting a signal with multiple link outputs according to a first embodiment of the present invention;
fig. 2 is a schematic block diagram of a multi-link output signal transmission system according to a second embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
fig. 1 is a flowchart of a method for transmitting a signal with multiple link outputs according to an embodiment of the present invention, where the method may be applied to an environment of communication transmission of internet of vehicles, and the method may be performed by a system for transmitting a signal with multiple link outputs according to an embodiment of the present invention, where the system is composed of multiple software and hardware modules, and the method specifically includes the following steps:
s101, constructing a multi-link transmission frame of the Internet of vehicles;
in some embodiments of the present invention, in the internet of vehicles multilink cooperative transmission framework, a smart identification aggregation router is used as a center, each network device in the framework is regarded as a single network device component as a whole, unique component identifications are allocated to the network device component by the smart identification aggregation router so as to realize uniform allocation and management, global uniqueness of component identifications is ensured, one smart identification aggregation router can support connection with a plurality of smart identification mobile routers, and user terminal network device components of different vehicles can also establish connection through the transmission framework.
Illustratively, in the embodiment of the present invention, all network components in the transport frame network topology are divided into three groups, including: the intelligent identification mobile router establishes corresponding cloud resource service mapping according to different types of services provided in the cloud resource service group, establishes corresponding user demand service mapping according to different demands of different users in the user terminal network device group, and simultaneously establishes a transparent transmission channel between the user terminal network device and the cloud resource server by utilizing heterogeneous wireless links together with the intelligent identification mobile router.
In the step, the intelligent identification aggregation router establishes a transmission service mapping from the intelligent identification mobile router to the signal-to-noise ratio through the global unique component identification distributed to the intelligent identification mobile router, and maintains reliable connection; the intelligent identification mobile router and the intelligent identification aggregation router establish link resource mapping through heterogeneous wireless links in a wireless access network equipment group, each link resource mapping is unreliable to cope with possible interruption at any time, and as long as all link resource mapping is not interrupted at the same time, transmission service mapping from the intelligent identification mobile router to a signal to noise ratio is not interrupted, and further, the trans-regional movement of the transmission frame is ensured.
S102, realizing basic communication of a multi-link transmission framework;
in some embodiments of the present invention, a basic communication flow of the internet of vehicles multilink transmission framework includes: smart identification mobile router registration procedures, user registration procedures, data communication procedures, and smart identification mobile router message advertisement. In an exemplary embodiment of the present invention, the smart identification mobile router registration process is specifically: when the intelligent identification mobile router equipment is powered on for the first time or powered off and then powered on again, the intelligent identification aggregation router is actively searched according to self configuration, and a registration request is initiated; after receiving the registration request of the intelligent identification mobile router, the intelligent identification aggregation router firstly inquires whether the newly-accessed intelligent identification mobile router is registered or not, and if so, the record is updated; otherwise, creating a mobile router component identifier and a group identifier, notifying the new intelligent identifier mobile router by the intelligent identifier aggregation router, and issuing a transmission mechanism service identifier to complete the registration process; the user registration process is the same.
The data communication process specifically comprises the following steps: during data communication, a user data packet is accessed into the intelligent identification mobile router through a reliable link; after the data is subjected to identification encapsulation by the intelligent identification mobile router, the data is sent to the intelligent identification aggregation router through a plurality of external access network components of the intelligent identification mobile router according to a transmission strategy corresponding to the transmission service identification; and the data sent by the heterogeneous network is finally converged in the intelligent identification aggregation router, unpacked and forwarded to the corresponding cloud resource component, and the data is sent back to the user terminal in a symmetrical mode.
The message notification process specifically includes: when the intelligent identification mobile router operates in a complex mobile scene, the intelligent identification mobile router needs to monitor the states of all external access network components in real time, and when the states of external access network components are abnormal, for example, the network connection of a certain external access network component is suddenly interrupted, the intelligent identification mobile router needs to timely inform the corresponding intelligent identification aggregation router of the conditions, so that the intelligent identification aggregation router timely makes corresponding, and a large number of effective data packets are prevented from being sent to an ineffective network component; when the intelligent identification aggregation router receives the network component state notification message from the intelligent identification mobile router, the intelligent identification aggregation router immediately processes the message and transmits the processing result to the intelligent identification mobile router in the form of a transmission service identification; after receiving the new transmission service identifier, the smart identifier mobile router needs to confirm that the service identifier is successfully received to the smart identifier aggregation router.
S103, optimizing the disorder problem of transmission in the link communication process;
in some embodiments of the present invention, when a data packet is sent through multiple links, due to the performance difference of heterogeneous links, serious disorder occurs when the data packet sent in order arrives at a receiving end, so as to affect the resource rate of the heterogeneous links, and in the process of data transmission through the links, the disorder situation is more serious, so that the queuing delay of the data packet in disorder is dynamically increased through RAID receiving buffer.
In the embodiment of the invention, the RAID receiving buffer is arranged at the receiving end, and the out-of-order data packets arriving through the heterogeneous wireless links wait for a certain time in the RAID receiving buffer, so that the out-of-order data packets are orderly forwarded to the cloud resource server; through the step, a certain queuing delay is dynamically added for each data packet at the receiving end, so that the data packets are ensured to be orderly forwarded to the cloud resource server. Specifically, the RAID receiving and caching process comprises the following steps: in the receiving process of the data packets of the RAID multilink transmission method, the receiving buffer is realized through a Map interface based on a hash table, and the data packets in a buffer list are arranged in ascending order according to sequence numbers; judging whether a data packet which can be forwarded exists in the current cache or not, and recording the final forwarding time to judge whether the data packet is overtime or not; monitoring the set of available external access network components in real time, and waiting for a data packet; when a new data packet arrives, firstly inserting the data packet into a receiving buffer memory according to the sending sequence number of the data packet, wherein the first data packet is always the most likely data packet to be forwarded, so that the first data packet in the buffer memory is circularly judged whether to be a data packet to be forwarded or not, if so, the data packet is forwarded and the final sending time is updated, and meanwhile, the expected data packet is updated to be the next data packet; finally, the first packet in the receive buffer is cleared.
In the embodiment of the invention, when a packet loss occurs in a link, whether a real data packet is still transmitted in the link cannot be directly judged according to a sequence number in the data packet receiving process of the RAID multi-link transmission method, so that when the difference between the current moment and the last forwarding moment of the data packet in a cache is larger than a threshold value according to a set time threshold value, the first data packet in the cache overtakes, and the data packet is forwarded; otherwise, continue waiting for new data packets. Through the step, under the condition that the upper layer time delay sensitive application transmission is not overtime, the RAID receiving buffer memory is used for dynamically increasing the queuing time delay of the out-of-order data packet, and the ordered transmission of the data arriving through the link is ensured, so that the resource utilization rate in the heterogeneous wireless link transmission process is improved.
S104, further improving the transmission reliability of the transmission frame through a BNNC multilink transmission method;
in some embodiments of the present invention, a sending end portion and a receiving end portion of the BNNC multilink transmission method are respectively in a smart identification mobile router and a smart identification aggregation router, after a data packet of a user terminal network device arrives at the smart identification mobile router, the data packet is processed by the BNNC multilink transmission method, and is sent to the smart identification aggregation router through a heterogeneous wireless link; in the step, even if part of the data packets are lost, the receiving end can recover the original data packets through mathematical operation so as to ensure that the data packets of the user terminal network equipment effectively reach the intelligent identification aggregation router and are smoothly forwarded to the cloud resource server.
Specifically, the user terminal network device generates a series of continuous data packets, the BNNC multilink transmission method maps the data packets into different large numbers one by one, and the continuous k large numbers are combined into a group to form a coding cluster; through coding operation, k BN in one coding cluster are coded into n large numbers, n data packets are obtained after the n large numbers are mapped in a large number reverse mode, and the n data packets are sent through a heterogeneous network; at the intelligent identification aggregation router end, as long as k data packets in n data packets from the same coding cluster are received, the k data packets can be decoded by a BNNC multilink transmission method to recover the original k data packets. Through the step, the consumption of the link bandwidth resources can be reduced, the reliability of the transmission process is further effectively improved, the phenomenon that the transmission rate of user terminal network equipment is actively and greatly reduced due to the loss of the data packet is avoided, and the resource utilization rate of heterogeneous wireless links is effectively improved.
Embodiment two:
fig. 2 is a schematic block diagram of a signal transmission system with multiple link outputs according to the second embodiment, as shown in fig. 2, where the system includes:
the multi-link transmission frame construction module is used for constructing a multi-link transmission frame;
and the signal transmission optimization module is used for optimizing the signal transmission process.
In some embodiments of the invention, the multilink transmission frame construction module includes:
the component identifier allocation module is used for allocating unique component identifiers for the network equipment components;
the group classification module is used for classifying groups of the network components;
and the multilink transmission communication module is used for realizing basic communication of the multilink transmission framework.
In some embodiments of the invention, the multilink transmission communication module includes:
a router registration unit for registering the smart identification mobile router;
a user registration unit for registering a user;
a data communication unit for realizing data communication;
and the message advertising unit is used for advertising the messages among the routers.
In some embodiments of the invention, the signal transmission optimization module comprises:
the transmission disorder optimization module is used for optimizing transmission disorder;
the packet loss processing module is used for processing the packet loss of the data;
and the BNC encoding and decoding module is used for improving the transmission efficiency through BNC encoding and decoding.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A signal transmission method of multilink output is characterized in that: the method comprises the following steps:
constructing a multi-link transmission frame of the Internet of vehicles;
basic communication of a multilink transmission framework is realized;
optimizing the disorder problem of transmission in the link communication process;
further, the transmission reliability of the transmission frame is improved through the BNNC multilink transmission method.
2. The method for transmitting a signal for a multilink output according to claim 1, wherein: the construction of the internet of vehicles multilink transmission frame comprises the following steps:
through the identification network, the intelligent identification aggregation router is used as a center, and a unique component identification is distributed to each network equipment component in the framework through the intelligent identification aggregation router;
dividing all network components in a transport frame network topology into three groups, including: cloud resource service groups, wireless access network device groups, and user terminal network device component groups.
3. The method for transmitting a signal for a multilink output according to claim 1, wherein: the basic communication for implementing the multilink transmission framework comprises the following steps:
the basic communication flow of the internet of vehicles multilink transmission framework comprises the following steps: smart identification mobile router registration procedures, user registration procedures, data communication procedures, and smart identification mobile router message advertisement.
4. The method for transmitting a signal for a multilink output according to claim 1, wherein: the optimizing the out-of-order problem of the transmission in the link communication process comprises the following steps:
dynamically increasing queuing delay of out-of-order data packets through RAID receiving buffer;
and judging whether the first data packet in the buffer memory is overtime or not according to the set time threshold.
5. The method for transmitting a signal for a multilink output according to claim 1, wherein: the further improving the transmission reliability of the transmission frame by the BNNC multilink transmission method comprises the following steps:
generating a series of continuous data packets by the user terminal network equipment, mapping the data packets one by one and forming a coding cluster;
after the intelligent identification aggregation router receives the coding cluster, the coding cluster is decoded and the original data packet is restored.
6. A signal transmission system for multilink output, characterized by: the system comprises:
the multi-link transmission frame construction module is used for constructing a multi-link transmission frame;
and the signal transmission optimization module is used for optimizing the signal transmission process.
7. A multi-link output signal transmission system as claimed in claim 6, wherein: the multilink transmission frame construction module includes:
the component identifier allocation module is used for allocating unique component identifiers for the network equipment components;
the group classification module is used for classifying groups of the network components;
and the multilink transmission communication module is used for realizing basic communication of the multilink transmission framework.
8. A multi-link output signal transmission system as claimed in claim 7, wherein: the multilink transmission communication module includes:
a router registration unit for registering the smart identification mobile router;
a user registration unit for registering a user;
a data communication unit for realizing data communication;
and the message advertising unit is used for advertising the messages among the routers.
9. A multi-link output signal transmission system as claimed in claim 6, wherein: the signal transmission optimization module comprises:
the transmission disorder optimization module is used for optimizing transmission disorder;
the packet loss processing module is used for processing the packet loss of the data;
and the BNC encoding and decoding module is used for improving the transmission efficiency through BNC encoding and decoding.
CN202211633772.XA 2022-12-19 2022-12-19 Signal transmission system with multiple link outputs Pending CN116133046A (en)

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Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211633772.XA CN116133046A (en) 2022-12-19 2022-12-19 Signal transmission system with multiple link outputs

Publications (1)

Publication Number Publication Date
CN116133046A true CN116133046A (en) 2023-05-16

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