CN117478758B - Multistage link control method and device supporting virtual logic plane - Google Patents
Multistage link control method and device supporting virtual logic plane Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/14—Multichannel or multilink protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/323—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the physical layer [OSI layer 1]
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Abstract
The invention discloses a multistage link control method and a device supporting a virtual logic plane, wherein the method comprises the following steps: configuring a virtual logic plane for each node in a satellite communication system; the virtual logic plane comprises a virtual logic plane first layer, a virtual logic plane second layer and a virtual logic plane third layer; the first layer of the virtual logic plane comprises a physical layer protocol for acquiring a transmission destination address of user service data; the virtual logic plane second layer comprises a second layer user plane and a second layer logic control plane; the second layer user plane is used for realizing end-to-end transmission of user service data; the second layer logic control plane is used for establishing and dismantling a logic link; the virtual logical plane third layer includes a third layer logical control plane for congestion control and data verification. The multistage link control method is simple and easy to realize, has lower requirement on the processing capacity of each node, can support a large-bandwidth high-dynamic service transmission scene, and supports the realization of flexible service transmission.
Description
Technical Field
The present invention relates to the field of satellite communications technologies, and in particular, to a method and an apparatus for controlling a multi-level link supporting a virtual logic plane.
Background
The satellite communication system is an important way for realizing global coverage and transmission across large-area broadband networking, and is an important technical means for constructing a 6G communication network in the future and realizing global interconnection and interworking. The satellite communication system is constrained by the bearing capacity of the space platform, the problem of limited processing capacity of the space-based satellite communication nodes exists, meanwhile, the satellite communication system has various user service types, and the ground station and various user terminal stations have large communication capacity difference, so that challenges are provided for quick, efficient and reliable data transmission of the satellite communication system under the conditions of high dynamic change of communication service relation and demand. Therefore, it is urgently needed to provide a simple and effective satellite communication link control method, which meets the service transmission control requirements of a satellite communication system under the limiting conditions of limited platform, dynamic service, station type diversity and the like.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a multistage link control method and a multistage link control device supporting a virtual logic plane, wherein each node in a satellite communication system is configured with the virtual logic plane, a user plane of the virtual logic plane is separated from a control plane, the user plane is responsible for data multiplexing encapsulation and end-to-end data transmission, and the control plane is responsible for routing and transmission control, so that the transmission control of user service data is realized together. The invention has the advantages that: the multistage link control method is simple and easy to realize, has low processing capacity requirement on each node, and can support a large-bandwidth high-dynamic service transmission scene; the logical link list of each node can rapidly map the task communication relation with high dynamic change into a logical structure through periodical and autonomous updating, and flexible service transmission is supported.
In order to solve the above technical problems, a first aspect of the present invention discloses a method for controlling a multi-level link supporting a virtual logical plane, where the method includes:
S1, configuring a virtual logic plane for each node in a satellite communication system; the virtual logic plane comprises a virtual logic plane first layer, a virtual logic plane second layer and a virtual logic plane third layer;
the second layer of virtual logic planes comprises a second layer of user planes and a second layer of logic control planes;
The third layer of virtual logic planes comprises a third layer of logic control planes;
S2, utilizing the virtual logic plane to monitor a communication channel continuously;
S3, after receiving the user service physical frame or the multiplexing service data, the virtual logic plane first layer reads the user service physical frame or the multiplexing service data to obtain a transmission destination address of the user service data or the multiplexing service data;
S4, the second layer logic control plane judges whether a matching list item exists in a logic link list according to the transmission destination address, if so, an end-to-end transmission control instruction is sent to the second layer user plane, and S7 is executed; if not, initializing a counter to 0, and executing S5;
S5, the second layer logic control plane judges whether the counter is larger than a preset threshold value, if yes, the user service data or the multiplexing service data is discarded, and S2 is executed; if not, the protocol broadcasting data link entity updates the logic link list of the protocol broadcasting data link entity;
S6, the second layer logic control plane judges whether the updated logic link list has a matched list item, if yes, a logic control plane connection management unit and a logic control plane management unit transmit a control instruction to a second layer user plane from end to end, and S7 is executed; otherwise, adding 1 to the counter, and executing S5;
s7, the second layer user plane carries out end-to-end transmission of multiplexing service data;
S8, the third layer logic control plane checks the multiplexing service data in the end-to-end transmission and monitors the congestion condition of the communication channel, if the length of the multiplexing service data does not meet the preset length requirement, the multiplexing service data is discarded, S2 is executed, and if the congestion condition of the communication channel is monitored, the second layer user plane is controlled to suspend the end-to-end transmission of the multiplexing service data;
S9, multiplexing service data to reach the next node, judging whether the node is a multiplexing service data transmission destination address by a virtual logic plane configured by the node through a virtual logic plane first layer, if so, de-multiplexing the multiplexing service data, sending the multiplexing service data to each user, and executing S2; if not, S4 to S9 are executed.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, the protocol broadcast data link entity performs self logical link list update, including:
the protocol broadcasting data link entity initiates a logic link list update request to other nodes and receives feedback information of the other nodes;
and the protocol broadcasting data link entity updates a logic link list of the protocol broadcasting data link entity according to the feedback information of the other nodes.
In a first aspect of the embodiment of the present invention, the logic control plane connection management unit and the logic control plane management unit send an end-to-end transmission control instruction to the second layer user plane, where the transmission control instruction includes:
The logic control plane connection management unit and the logic control plane management unit generate a logic link establishment command corresponding to the matching item;
The logic control plane connection management unit and the logic control plane management unit control a protocol data link entity to establish a logic link according to the logic link establishment command;
And the logic control plane connection management unit and the logic control plane management unit transmit a control instruction to the second layer user plane end to end according to the logic link.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, the end-to-end transmission of the multiplexed service data by the second layer user plane includes:
The second layer user plane performs communication path multiplexing on the user service physical frame or multiplexing service data received by the second layer user plane and the existing multiplexing service data of the node according to an end-to-end transmission control instruction sent by the second layer logic control plane to obtain updated multiplexing service data;
and the second layer user plane performs end-to-end transmission on the updated multiplexing service data.
In a first aspect of the embodiment of the present invention, the first layer of the virtual logical plane includes a physical layer protocol, configured to obtain a transmission destination address of user service data;
The second layer user plane is used for realizing end-to-end transmission of user service data;
The second layer logic control plane is used for establishing and dismantling a logic link;
the virtual logic plane third layer includes a third layer logic control plane for congestion control and data verification.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, the second layer logic control plane includes a protocol broadcast data link entity, a logic control plane connection management unit, a logic control plane management unit, and a protocol data link entity;
The protocol broadcasting data link entity is used for broadcasting a logic link list of the node to surrounding nodes periodically;
The protocol broadcast data link entity is used for receiving a logic link list broadcast by other nodes at regular intervals, updating a logic link list of the protocol broadcast data link entity, initiating a logic link list updating request to other nodes, and updating the logic link list of the protocol broadcast data link entity according to the received feedback information;
The logic control plane connection management unit and the logic control plane management unit are used for generating a logic link establishment and removal command, and controlling a protocol data link entity to establish a logic link between the node and other nodes or remove an existing logic link according to the establishment and removal command.
The second aspect of the embodiment of the invention discloses a multistage link control device supporting a virtual logic plane, which comprises:
The virtual logic plane configuration module is used for configuring a virtual logic plane for each node in the satellite communication system; the virtual logic plane comprises a virtual logic plane first layer, a virtual logic plane second layer and a virtual logic plane third layer;
the second layer of virtual logic planes comprises a second layer of user planes and a second layer of logic control planes;
The third layer of virtual logic planes comprises a third layer of logic control planes;
the channel monitoring module is used for continuously monitoring a communication channel by utilizing the virtual logic plane;
The first processing module is used for reading the user service physical frame or the multiplexing service data by the first layer of the virtual logic plane after receiving the user service physical frame or the multiplexing service data to obtain a transmission destination address of the user service data or the multiplexing service data;
The second processing module is used for judging whether a matching list item exists in the logic link list according to the transmission destination address by the second layer logic control plane, if so, transmitting an end-to-end transmission control instruction to the second layer user plane, and executing a fifth processing module; if not, initializing a counter to 0, and executing a third processing module;
the third processing module is used for judging whether the counter is larger than a preset threshold value or not by the second layer logic control plane, if so, discarding the user service data or multiplexing service data, and executing a channel monitoring module; if not, the protocol broadcasting data link entity updates the logic link list of the protocol broadcasting data link entity;
The fourth processing module is used for judging whether the updated logic link list has a matching list item or not by the second layer logic control plane, if yes, the logic control plane connection management unit and the logic control plane management unit transmit a control instruction to the second layer user plane from end to end, and the fifth processing module is executed; otherwise, adding 1 to the counter, and executing a third processing module;
A fifth processing module, wherein the second layer user plane performs end-to-end transmission of multiplexing service data;
A sixth processing module, where the third layer logic control plane checks the multiplexed service data in the end-to-end transmission, monitors the congestion status of the communication channel, discards the multiplexed service data if the length of the multiplexed service data does not meet the preset length requirement, executes the channel monitoring module, and controls the second layer user plane to suspend the end-to-end transmission of the multiplexed service data if the congestion status of the communication channel is monitored;
The seventh processing module, multiplex the business data to reach the next level node, the virtual logic plane that this node disposes judges whether this node is multiplexing the business data transmission destination address through the first layer of the virtual logic plane, if yes, carry on the demultiplexing to multiplexing the business data, send to every user, carry out the channel and monitor the module; if not, executing the second processing module to the seventh processing module.
In a second aspect of the embodiment of the present invention, the protocol broadcast data link entity performs self logical link list update, including:
the protocol broadcasting data link entity initiates a logic link list update request to other nodes and receives feedback information of the other nodes;
and the protocol broadcasting data link entity updates a logic link list of the protocol broadcasting data link entity according to the feedback information of the other nodes.
In a second aspect of the embodiment of the present invention, the sending, by the logical control plane connection management unit and the logical control plane management unit, an end-to-end transmission control instruction to the second layer user plane includes:
The logic control plane connection management unit and the logic control plane management unit generate a logic link establishment command corresponding to the matching item;
The logic control plane connection management unit and the logic control plane management unit control a protocol data link entity to establish a logic link according to the logic link establishment command;
And the logic control plane connection management unit and the logic control plane management unit transmit a control instruction to the second layer user plane end to end according to the logic link.
As an optional implementation manner, in a second aspect of the embodiment of the present invention, the end-to-end transmission of multiplexing service data by the second layer user plane includes:
The second layer user plane performs communication path multiplexing on the user service physical frame or multiplexing service data received by the second layer user plane and the existing multiplexing service data of the node according to an end-to-end transmission control instruction sent by the second layer logic control plane to obtain updated multiplexing service data;
and the second layer user plane performs end-to-end transmission on the updated multiplexing service data.
In a second aspect of the embodiment of the present invention, the first layer of the virtual logical plane includes a physical layer protocol, configured to obtain a transmission destination address of user service data;
The second layer user plane is used for realizing end-to-end transmission of user service data;
The second layer logic control plane is used for establishing and dismantling a logic link;
the virtual logic plane third layer includes a third layer logic control plane for congestion control and data verification.
As an optional implementation manner, in the second aspect of the embodiment of the present invention, the second layer logic control plane includes a protocol broadcast data link entity, a logic control plane connection management unit, a logic control plane management unit, and a protocol data link entity;
The protocol broadcasting data link entity is used for broadcasting a logic link list of the node to surrounding nodes periodically;
The protocol broadcast data link entity is used for receiving a logic link list broadcast by other nodes at regular intervals, updating a logic link list of the protocol broadcast data link entity, initiating a logic link list updating request to other nodes, and updating the logic link list of the protocol broadcast data link entity according to the received feedback information;
The logic control plane connection management unit and the logic control plane management unit are used for generating a logic link establishment and removal command, and controlling a protocol data link entity to establish a logic link between the node and other nodes or remove an existing logic link according to the establishment and removal command.
In a third aspect, the present invention discloses another multi-stage link control apparatus supporting virtual logic planes, the apparatus comprising:
A memory storing executable program code;
A processor coupled to the memory;
The processor invokes the executable program code stored in the memory to perform some or all of the steps in the multi-level link control method supporting virtual logical planes disclosed in the first aspect of the embodiment of the present invention.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
(1) In the invention, the user plane of the virtual logic plane is separated from the control plane, the user plane is responsible for data multiplexing encapsulation and end-to-end data transmission, the control plane is responsible for routing and transmission control, the method is simple and easy to realize, has lower requirement on the processing capacity of each node, and can support a large-bandwidth high-dynamic service transmission scene;
(2) According to the invention, the logical link list of each node can be updated regularly and autonomously, so that the task communication relation with high dynamic change can be mapped into a logical structure rapidly, and flexible service transmission is supported.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow diagram of a method for controlling a multi-level link supporting a virtual logical plane according to an embodiment of the present invention;
Fig. 2 is a flow chart of another method for multi-stage link control supporting virtual logical planes according to an embodiment of the present invention;
Fig. 3 is a schematic structural diagram of a multi-stage link control apparatus supporting a virtual logic plane according to an embodiment of the present invention;
Fig. 4 is a schematic structural diagram of another multi-stage link control apparatus supporting virtual logic planes according to an embodiment of the present invention.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, 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.
The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, apparatus, article, or device that comprises a list of steps or elements is not limited to the list of steps or elements but may, in the alternative, include other steps or elements not expressly listed or inherent to such process, method, article, or device.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The invention discloses a multistage link control method and a device supporting a virtual logic plane, wherein the method comprises the following steps: the invention discloses a multistage link control method and a device supporting a virtual logic plane, wherein the method comprises the following steps: configuring a virtual logic plane for each node in a satellite communication system; the virtual logic plane comprises a virtual logic plane first layer, a virtual logic plane second layer and a virtual logic plane third layer; the first layer of the virtual logic plane comprises a physical layer protocol for acquiring a transmission destination address of user service data; the virtual logic plane second layer comprises a second layer user plane and a second layer logic control plane; the second layer user plane is used for realizing end-to-end transmission of user service data; the second layer logic control plane is used for establishing and dismantling a logic link; the virtual logical plane third layer includes a third layer logical control plane for congestion control and data verification. The multistage link control method is simple and easy to realize, has lower requirement on the processing capacity of each node, can support a large-bandwidth high-dynamic service transmission scene, and supports the realization of flexible service transmission. The following will describe in detail.
Example 1
Referring to fig. 1, fig. 1 is a flow chart of a multi-level link control method supporting a virtual logical plane according to an embodiment of the present invention. The multistage link control method supporting the virtual logic plane described in fig. 1 is applied to the technical field of satellite communication, supports a large-bandwidth high-dynamic service transmission scene, and can rapidly map a task communication relationship with high dynamic change into a logic structure through periodical and autonomous updating of each node logic link list. As shown in fig. 1, the multi-stage link control method supporting a virtual logical plane may include the following operations:
S1, configuring a virtual logic plane for each node in a satellite communication system; the virtual logic plane comprises a virtual logic plane first layer, a virtual logic plane second layer and a virtual logic plane third layer;
the second layer of virtual logic planes comprises a second layer of user planes and a second layer of logic control planes;
The third layer of virtual logic planes comprises a third layer of logic control planes;
S2, utilizing the virtual logic plane to monitor a communication channel continuously;
S3, after receiving the user service physical frame or the multiplexing service data, the virtual logic plane first layer reads the user service physical frame or the multiplexing service data to obtain a transmission destination address of the user service data or the multiplexing service data;
S4, the second layer logic control plane judges whether a matching list item exists in a logic link list according to the transmission destination address, if so, an end-to-end transmission control instruction is sent to the second layer user plane, and S7 is executed; if not, initializing a counter to 0, and executing S5;
S5, the second layer logic control plane judges whether the counter is larger than a preset threshold value, if yes, the user service data or the multiplexing service data is discarded, and S2 is executed; if not, the protocol broadcasting data link entity updates the logic link list of the protocol broadcasting data link entity;
S6, the second layer logic control plane judges whether the updated logic link list has a matched list item, if yes, a logic control plane connection management unit and a logic control plane management unit transmit a control instruction to a second layer user plane from end to end, and S7 is executed; otherwise, adding 1 to the counter, and executing S5;
s7, the second layer user plane carries out end-to-end transmission of multiplexing service data;
S8, the third layer logic control plane checks the multiplexing service data in the end-to-end transmission and monitors the congestion condition of the communication channel, if the length of the multiplexing service data does not meet the preset length requirement, the multiplexing service data is discarded, S2 is executed, and if the congestion condition of the communication channel is monitored, the second layer user plane is controlled to suspend the end-to-end transmission of the multiplexing service data;
S9, multiplexing service data to reach the next node, judging whether the node is a multiplexing service data transmission destination address by a virtual logic plane configured by the node through a virtual logic plane first layer, if so, de-multiplexing the multiplexing service data, sending the multiplexing service data to each user, and executing S2; if not, S4 to S9 are executed.
Optionally, the protocol broadcast data link entity performs self logical link list update, including:
the protocol broadcasting data link entity initiates a logic link list update request to other nodes and receives feedback information of the other nodes;
and the protocol broadcasting data link entity updates a logic link list of the protocol broadcasting data link entity according to the feedback information of the other nodes.
Optionally, the logic control plane connection management unit and the logic control plane management unit send an end-to-end transmission control instruction to the second layer user plane, including:
The logic control plane connection management unit and the logic control plane management unit generate a logic link establishment command corresponding to the matching item;
The logic control plane connection management unit and the logic control plane management unit control a protocol data link entity to establish a logic link according to the logic link establishment command;
And the logic control plane connection management unit and the logic control plane management unit transmit a control instruction to the second layer user plane end to end according to the logic link.
Optionally, the end-to-end transmission of the multiplexed service data by the second layer user plane includes:
The second layer user plane performs communication path multiplexing on the user service physical frame or multiplexing service data received by the second layer user plane and the existing multiplexing service data of the node according to an end-to-end transmission control instruction sent by the second layer logic control plane to obtain updated multiplexing service data;
and the second layer user plane performs end-to-end transmission on the updated multiplexing service data.
Optionally, the first layer of the virtual logic plane includes a physical layer protocol, configured to obtain a transmission destination address of user service data;
The second layer user plane is used for realizing end-to-end transmission of user service data;
The second layer logic control plane is used for establishing and dismantling a logic link;
the virtual logic plane third layer includes a third layer logic control plane for congestion control and data verification.
Optionally, the second layer logic control plane includes a protocol broadcast data link entity, a logic control plane connection management unit, a logic control plane management unit, and a protocol data link entity;
The protocol broadcasting data link entity is used for broadcasting a logic link list of the node to surrounding nodes periodically;
The protocol broadcast data link entity is used for receiving a logic link list broadcast by other nodes at regular intervals, updating a logic link list of the protocol broadcast data link entity, initiating a logic link list updating request to other nodes, and updating the logic link list of the protocol broadcast data link entity according to the received feedback information;
The logic control plane connection management unit and the logic control plane management unit are used for generating a logic link establishment and removal command, and controlling a protocol data link entity to establish a logic link between the node and other nodes or remove an existing logic link according to the establishment and removal command.
Example two
Referring to fig. 2, fig. 2 is a flow chart of another method for supporting multi-level link control of virtual logical planes according to an embodiment of the present invention. The multistage link control method supporting the virtual logic plane described in fig. 2 is applied to the technical field of satellite communication, supports a large-bandwidth high-dynamic service transmission scene, and can rapidly map a task communication relationship with high dynamic change into a logic structure through periodical and autonomous updating of each node logic link list. As shown in fig. 2, the multi-stage link control method supporting the virtual logical plane may include the following operations:
Each node in the satellite communication system is configured with a virtual logic plane for controlling the transmission of user service data, wherein the virtual logic plane is divided into 3 layers altogether, and a first layer comprises a physical layer protocol for acquiring a transmission destination address of the user service data; the second layer is divided into a second layer user plane and a second layer logic control plane, wherein the second layer user plane is used for realizing end-to-end transmission of user service data, and the second layer logic control plane is used for establishing and dismantling a logic link; the third layer comprises a third layer logic control plane for congestion control and data verification;
The second layer logic control plane comprises a protocol broadcast data link entity, logic control plane connection management, logic control plane management and a protocol data link entity; the protocol broadcasting data link entity is used for broadcasting the logic link list of the node to surrounding nodes regularly, receiving the logic link list broadcast by other nodes regularly, updating the logic link list of the protocol broadcasting data link entity, initiating a logic link list updating request to other nodes, and updating the logic link list of the protocol broadcasting data link entity according to the received feedback information; the logical control plane connection management and the logical control plane management are used for generating the establishment and tear-down commands of the logical links, and controlling the protocol data link entity to establish the logical links between the node and other nodes or tear down the existing logical links according to the establishment and tear-down commands. Mainly comprises the following steps:
Step1, a virtual logic plane configured by each node continuously monitors a communication channel;
Step 2, when receiving the user service physical frame or multiplexing service data, the virtual logic plane first layer reads the user service physical frame or multiplexing service data to obtain the transmission destination address of the user service data or multiplexing service data;
step 3, the second layer logic control plane judges whether a matching list item exists in the logic link list according to the transmission destination address, if so, the second layer logic control plane sends an end-to-end transmission control instruction to the second layer user plane, and the step 6 is transferred; if not, initializing a counter to 0, and turning to the step 4;
Step 4, the second layer logic control plane judges whether the counter is larger than the threshold value, if yes, the user service data or the multiplexing service data is discarded, and the step 1 is returned; otherwise, the protocol broadcasting data link entity initiates a logic link list update request to other nodes, and updates the logic link list of the protocol broadcasting data link entity according to the received feedback information;
Step 5, the second layer logic control plane judges whether the updated logic link list has a matching list item, if yes, the logic control plane connection management and the logic control plane management generate a logic link establishment command corresponding to the matching item, and control the protocol data link entity to establish the logic link, then transmit a control command to the second layer user plane from end to end, and go to step 6; otherwise, adding 1 to the counter, and returning to the step 4;
Step 6, the second layer user plane multiplexes the received user service physical frame or multiplexing service data with the existing multiplexing service data of the node according to the end-to-end transmission control instruction sent by the second layer logic control plane, forms updated multiplexing service data, and performs end-to-end transmission of the multiplexing service data;
Step 7, the third layer logic control plane checks the multiplexing service data in the end-to-end transmission and monitors the congestion condition of the communication channel, if the length of the multiplexing service data does not meet the set length requirement, the multiplexing service data is discarded, and the step 1 is returned, if the congestion condition of the communication channel is monitored, the second layer user plane is controlled to suspend the end-to-end transmission of the multiplexing service data;
Step 8, multiplexing service data to reach the next node, the virtual logic plane configured by the node judges whether the node is a multiplexing service data transmission destination address through the first layer of the virtual logic plane, if yes, the multiplexing service data is demultiplexed and sent to each user, and the step1 is returned; otherwise, repeating the steps 3 to 8. The logical link list for each node is illustrated as follows:
| Sequence number | Destination address | Next stage node |
| 1 | Node 1 | Node 3 |
| 2 | Node 2 | Node 4 |
| …… | …… | …… |
| N | Node M | Node L |
Example III
Referring to fig. 3, fig. 3 is a schematic structural diagram of a multi-stage link control device supporting virtual logic planes according to an embodiment of the invention. The multistage link control device supporting the virtual logic plane described in fig. 3 is applied to the technical field of satellite communication, supports a large-bandwidth high-dynamic service transmission scene, and can rapidly map a task communication relationship with high dynamic change into a logic structure through periodical and autonomous updating of each node logic link list. As shown in fig. 3, the multi-stage link control apparatus supporting the virtual logic plane may include the following operations:
S301, a virtual logic plane configuration module is used for configuring a virtual logic plane for each node in a satellite communication system; the virtual logic plane comprises a virtual logic plane first layer, a virtual logic plane second layer and a virtual logic plane third layer;
the second layer of virtual logic planes comprises a second layer of user planes and a second layer of logic control planes;
The third layer of virtual logic planes comprises a third layer of logic control planes;
s302, a channel monitoring module, which is used for continuously monitoring a communication channel by utilizing the virtual logic plane;
S303, a first processing module, after receiving the user service physical frame or the multiplexing service data, reads the user service physical frame or the multiplexing service data by the first layer of the virtual logic plane to obtain a transmission destination address of the user service data or the multiplexing service data;
S304, the second processing module, the second layer logic control plane judges whether there is a matching list item in the logic link list according to the transmission destination address, if yes, the second processing module sends an end-to-end transmission control instruction to the second layer user plane, and executes a fifth processing module; if not, initializing a counter to 0, and executing a third processing module;
S305, a third processing module, the second layer logic control plane judges whether the counter is larger than a preset threshold value, if yes, the user service data or the multiplexing service data is discarded, and a channel monitoring module is executed; if not, the protocol broadcasting data link entity updates the logic link list of the protocol broadcasting data link entity;
s306, a fourth processing module, wherein the second layer logic control plane judges whether the updated logic link list has a matching list item, if yes, a logic control plane connection management unit and a logic control plane management unit send an end-to-end transmission control instruction to the second layer user plane, and a fifth processing module is executed; otherwise, adding 1 to the counter, and executing a third processing module;
S307, a fifth processing module, wherein the second layer user plane performs end-to-end transmission of multiplexing service data;
S308, a sixth processing module, wherein the third layer logic control plane checks the multiplexing service data in the end-to-end transmission and monitors the congestion condition of the communication channel, if the length of the multiplexing service data does not meet the preset length requirement, the multiplexing service data is discarded, a channel monitoring module is executed, and if the communication channel is monitored to be in the congestion condition, the second layer user plane is controlled to suspend the end-to-end transmission of the multiplexing service data;
S309, a seventh processing module, the multiplexing service data arrives at the next node, the virtual logic plane configured by the node judges whether the node is the destination address of multiplexing service data transmission through the first layer of the virtual logic plane, if yes, the multiplexing service data is demultiplexed, sent to each user, and executes a channel monitoring module; if not, executing the second processing module to the seventh processing module.
Example IV
Referring to fig. 4, fig. 4 is a schematic structural diagram of a multi-stage link control device supporting virtual logic planes according to an embodiment of the present invention. The multistage link control device supporting the virtual logic plane described in fig. 4 is applied to the technical field of satellite communication, supports a large-bandwidth high-dynamic service transmission scene, and can rapidly map a task communication relationship with high dynamic change into a logic structure through periodical and autonomous updating of each node logic link list. As shown in fig. 4, the multi-stage link control apparatus supporting the virtual logic plane may include the following operations:
a memory 401 storing executable program codes;
A processor 402 coupled with the memory 401;
The processor 402 invokes executable program code stored in the memory 401 for performing the steps in the multi-level link control supporting the virtual logical plane described in the first and second embodiments.
Example five
The embodiment of the invention discloses a computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the steps in the multistage link control supporting virtual logic planes described in the first and second embodiments.
The apparatus embodiments described above are merely illustrative, in which the modules illustrated as separate components may or may not be physically separate, and the components shown as modules may or may not be physical, i.e., may be located in one place, or may be distributed over multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above detailed description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course by means of hardware. Based on such understanding, the foregoing technical solutions may be embodied essentially or in part in the form of a software product that may be stored in a computer-readable storage medium including Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), programmable Read-Only Memory (Programmable Read-Only Memory, PROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), one-time programmable Read-Only Memory (OTPROM), electrically erasable programmable Read-Only Memory (EEPROM), compact disc Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM) or other optical disc Memory, magnetic disc Memory, tape Memory, or any other medium that can be used for computer-readable carrying or storing data.
Finally, it should be noted that: the embodiment of the invention discloses a multistage link control method and a multistage link control device supporting a virtual logic plane, which are disclosed by the embodiment of the invention only for illustrating the technical scheme of the invention, but not limiting the technical scheme; although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme recorded in the various embodiments can be modified or part of technical features in the technical scheme can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (8)
1. A method of multi-level link control supporting a virtual logical plane, the method comprising:
S1, configuring a virtual logic plane for each node in a satellite communication system; the virtual logic plane comprises a virtual logic plane first layer, a virtual logic plane second layer and a virtual logic plane third layer;
the second layer of virtual logic planes comprises a second layer of user planes and a second layer of logic control planes;
The third layer of virtual logic planes comprises a third layer of logic control planes;
S2, utilizing the virtual logic plane to monitor a communication channel continuously;
S3, after receiving the user service physical frame or the multiplexing service data, the virtual logic plane first layer reads the user service physical frame or the multiplexing service data to obtain a transmission destination address of the user service data or the multiplexing service data;
S4, the second layer logic control plane judges whether a matching list item exists in a logic link list according to the transmission destination address, if so, an end-to-end transmission control instruction is sent to the second layer user plane, and S7 is executed; if not, initializing a counter to 0, and executing S5;
S5, the second layer logic control plane judges whether the counter is larger than a preset threshold value, if yes, the user service data or the multiplexing service data is discarded, and S2 is executed; if not, the protocol broadcasting data link entity updates the logic link list of the protocol broadcasting data link entity;
S6, the second layer logic control plane judges whether the updated logic link list has a matched list item, if yes, a logic control plane connection management unit and a logic control plane management unit transmit a control instruction to a second layer user plane from end to end, and S7 is executed; otherwise, adding 1 to the counter, and executing S5;
s7, the second layer user plane carries out end-to-end transmission of multiplexing service data;
S8, the third layer logic control plane checks the multiplexing service data in the end-to-end transmission and monitors the congestion condition of the communication channel, if the length of the multiplexing service data does not meet the preset length requirement, the multiplexing service data is discarded, S2 is executed, and if the congestion condition of the communication channel is monitored, the second layer user plane is controlled to suspend the end-to-end transmission of the multiplexing service data;
S9, multiplexing service data to reach the next node, judging whether the node is a multiplexing service data transmission destination address by a virtual logic plane configured by the node through a virtual logic plane first layer, if so, de-multiplexing the multiplexing service data, sending the multiplexing service data to each user, and executing S2; if not, S4 to S9 are executed.
2. The method for multi-stage link control supporting virtual logical planes according to claim 1, wherein the protocol broadcast data link entity performs self logical link list update, comprising:
the protocol broadcasting data link entity initiates a logic link list update request to other nodes and receives feedback information of the other nodes;
and the protocol broadcasting data link entity updates a logic link list of the protocol broadcasting data link entity according to the feedback information of the other nodes.
3. The multi-stage link control method supporting virtual logical planes according to claim 1, wherein the logical control plane connection management unit and the logical control plane management unit send end-to-end transmission control instructions to the second layer user plane, comprising:
The logic control plane connection management unit and the logic control plane management unit generate a logic link establishment command corresponding to the matching item;
The logic control plane connection management unit and the logic control plane management unit control a protocol data link entity to establish a logic link according to the logic link establishment command;
And the logic control plane connection management unit and the logic control plane management unit transmit a control instruction to the second layer user plane end to end according to the logic link.
4. The method for multi-stage link control supporting virtual logic planes according to claim 1, wherein said second layer user plane performs end-to-end transmission of multiplexed service data, comprising:
The second layer user plane performs communication path multiplexing on the user service physical frame or multiplexing service data received by the second layer user plane and the existing multiplexing service data of the node according to an end-to-end transmission control instruction sent by the second layer logic control plane to obtain updated multiplexing service data;
and the second layer user plane performs end-to-end transmission on the updated multiplexing service data.
5. The method for multi-stage link control supporting virtual logic plane according to claim 1, wherein the virtual logic plane first layer includes a physical layer protocol for acquiring a transmission destination address of user service data;
The second layer user plane is used for realizing end-to-end transmission of user service data;
The second layer logic control plane is used for establishing and dismantling a logic link;
the virtual logic plane third layer includes a third layer logic control plane for congestion control and data verification.
6. The method for multistage link control supporting virtual logical planes according to claim 1, wherein the second layer logical control plane comprises a protocol broadcast data link entity, a logical control plane connection management unit, a logical control plane management unit, a protocol data link entity;
The protocol broadcasting data link entity is used for broadcasting a logic link list of the node to surrounding nodes periodically;
The protocol broadcast data link entity is used for receiving a logic link list broadcast by other nodes at regular intervals, updating a logic link list of the protocol broadcast data link entity, initiating a logic link list updating request to other nodes, and updating the logic link list of the protocol broadcast data link entity according to the received feedback information;
The logic control plane connection management unit and the logic control plane management unit are used for generating a logic link establishment and removal command, and controlling a protocol data link entity to establish a logic link between the node and other nodes or remove an existing logic link according to the establishment and removal command.
7. A multi-stage link control apparatus supporting a virtual logical plane, the apparatus comprising:
The virtual logic plane configuration module is used for configuring a virtual logic plane for each node in the satellite communication system; the virtual logic plane comprises a virtual logic plane first layer, a virtual logic plane second layer and a virtual logic plane third layer;
the second layer of virtual logic planes comprises a second layer of user planes and a second layer of logic control planes;
The third layer of virtual logic planes comprises a third layer of logic control planes;
the channel monitoring module is used for continuously monitoring a communication channel by utilizing the virtual logic plane;
The first processing module is used for reading the user service physical frame or the multiplexing service data by the first layer of the virtual logic plane after receiving the user service physical frame or the multiplexing service data to obtain a transmission destination address of the user service data or the multiplexing service data;
The second processing module is used for judging whether a matching list item exists in the logic link list according to the transmission destination address by the second layer logic control plane, if so, transmitting an end-to-end transmission control instruction to the second layer user plane, and executing a fifth processing module; if not, initializing a counter to 0, and executing a third processing module;
the third processing module is used for judging whether the counter is larger than a preset threshold value or not by the second layer logic control plane, if so, discarding the user service data or multiplexing service data, and executing a channel monitoring module; if not, the protocol broadcasting data link entity updates the logic link list of the protocol broadcasting data link entity;
The fourth processing module is used for judging whether the updated logic link list has a matching list item or not by the second layer logic control plane, if yes, the logic control plane connection management unit and the logic control plane management unit transmit a control instruction to the second layer user plane from end to end, and the fifth processing module is executed; otherwise, adding 1 to the counter, and executing a third processing module;
A fifth processing module, wherein the second layer user plane performs end-to-end transmission of multiplexing service data;
A sixth processing module, where the third layer logic control plane checks the multiplexed service data in the end-to-end transmission, monitors the congestion status of the communication channel, discards the multiplexed service data if the length of the multiplexed service data does not meet the preset length requirement, executes the channel monitoring module, and controls the second layer user plane to suspend the end-to-end transmission of the multiplexed service data if the congestion status of the communication channel is monitored;
The seventh processing module, multiplex the business data to reach the next level node, the virtual logic plane that this node disposes judges whether this node is multiplexing the business data transmission destination address through the first layer of the virtual logic plane, if yes, carry on the demultiplexing to multiplexing the business data, send to every user, carry out the channel and monitor the module; if not, executing the second processing module to the seventh processing module.
8. A multi-stage link control apparatus supporting a virtual logical plane, the apparatus comprising:
A memory storing executable program code;
A processor coupled to the memory;
The processor invokes the executable program code stored in the memory to perform the multi-level link control method supporting virtual logical planes as claimed in any one of claims 1-6.
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