CN113676242B - Constellation satellite-borne network equipment control method - Google Patents
Constellation satellite-borne network equipment control method Download PDFInfo
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- CN113676242B CN113676242B CN202110900624.9A CN202110900624A CN113676242B CN 113676242 B CN113676242 B CN 113676242B CN 202110900624 A CN202110900624 A CN 202110900624A CN 113676242 B CN113676242 B CN 113676242B
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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
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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
- H04B7/18519—Operations control, administration or maintenance
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- 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
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Abstract
The invention discloses a constellation on-board network equipment management and control method, and belongs to the field of satellite communication. The method aims to solve the problem of management and control of constellation on-board network equipment under the dynamic condition of satellite nodes. The method is realized by the following technical scheme: the method adopts three links of control path calculation, control information transmission and information transmission of satellite-borne network equipment, a control center calculates path delay and hop count from the gateway station control equipment to corresponding satellites through received topology information, a final transmission path is determined, and control information with bidirectional path information is sent to the gateway station control equipment corresponding to the path. The gateway station management and control equipment transmits control information to the target satellite through links such as the star field, the inter-star field and the like. The mother satellite forms equipment information with a return path, and then the equipment information is transmitted to corresponding ground gateway station management and control equipment through inter-satellite, inter-satellite or inter-satellite links. The gateway station management and control equipment transmits the received information of the satellite-borne network equipment to a management and control center.
Description
Technical Field
The invention relates to a method for calculating the path to HEO/LEO satellite based on the coverage characteristic of gateway station by using the network topology of the connection relation of star, star-to-ground and star-to-ground lamp, and transmitting the control information with the path to the corresponding satellite, and simultaneously, the satellite-borne network equipment transmits the state information to the ground control center according to the return path in the control information.
Background
With the rapid development of network technology, satellite internet has become one of the main trends of the next generation network development. Similar to the terrestrial network, the satellite internet includes three aspects, a management plane, a control plane, and a forwarding plane.
The ground network equipment room automatically collects network information through a corresponding routing protocol to form topology, and sends management and control information to the corresponding network equipment according to a corresponding path based on the topology connection relation.
The HEO/LEO constellation becomes an important component of the satellite Internet, and the control of the satellite-borne network equipment cannot be completed in the same way as the ground Internet due to the factors of the dynamic property of the HEO/LEO constellation, limited node capacity and the like.
The traditional HEO/LEO satellite system realizes the control of equipment even if there is a satellite-borne network device, and related control service is not required to be transmitted through an inter-satellite link.
At present, the inter-satellite link of the 3GPP 5G satellite architecture only considers F1 (satellite on DU) and Xn (satellite on gNB) interfaces, and the coverage is satisfied by deploying a large number of gateway stations on the ground, so that the problem of deploying routing equipment on the satellite is solved.
Disclosure of Invention
The invention aims at the control requirement of satellite internet on-board equipment, provides a constellation on-board network equipment control mode, and provides support for efficient control of complex constellation on-board network equipment.
The above object of the present invention can be achieved by the following means: a method for managing and controlling constellation on-board network equipment, the method comprising:
step 1, calculating a control path of the satellite-borne network equipment;
step 1.1: the management and control center receives network topology data, comprising: inter-satellite links, satellite-to-ground links, and terrestrial links;
step 1.2: the control center calculates a path from the control center to the satellite, comprising: the gateway station is connected with the destination satellite through the satellite-to-ground and inter-satellite links and the destination satellite through the satellite-to-ground and inter-satellite links;
step 1.3: the control center calculates the paths from the satellites to the control center, wherein the paths comprise the paths from the satellites to the gateway station through inter-satellite links and the paths from the satellites to the gateway station through inter-satellite links and inter-satellite links;
step 2: control of the on-board network device;
step 2.1: the control center calculates control information with bidirectional path information according to the control path of the satellite-borne network equipment;
step 2.2: the control center sends control information to the corresponding gateway station according to the control path of the satellite-borne network equipment;
step 2.3: the gateway station management and control equipment receives the control information and sends the control information to the corresponding satellite nodes according to the paths;
step 3: information collection flow of on-board network equipment
Step 3.1: the method comprises the steps that a satellite-borne network device receives control information and takes out a return path in the control information;
step 3.2: the method comprises the steps that the satellite-borne network equipment forms network equipment information with return path information;
step 3.3: the constellation network equipment sends the information to the corresponding ground gateway station according to the return path;
step 3.4: the ground gateway station management and control equipment receives corresponding information of the satellite-borne network equipment and sends the information to the management and control center.
Further, the specific method in step 2.1 is as follows:
step 2.1.1: calculating the control path time delay and hop count between the gateway station and the satellite according to the constellation satellite node and gateway station node topological relation of the relevant time period, obtaining the path with the shortest time delay and the shortest hop count, and associating the gateway station with the satellite passing through the gateway station;
step 2.1.2: reporting the information obtained by calculation in the step 2.1.1 to a management and control center, and calculating the path of a management and control instruction of the related satellite to the gateway station through the management and control center by the management and control center;
step 2.1.3: and (2) forming a path set, a path change set and a satellite node set which need to be managed and controlled by taking the time period as a reference according to the paths obtained in the step (2.1.2), combining the two-way path information, and carrying the two-way path information into control information.
Compared with the prior art, the invention has the following beneficial effects:
the invention uses the thought of carrying the round trip path information to easily realize the parameter control and state monitoring of the satellite-borne network equipment.
Drawings
FIG. 1 is a typical scene diagram of a satellite Internet system.
Fig. 2 is a schematic diagram of on-board network device management path formation.
Fig. 3 is a schematic diagram of a control flow of an on-board network device.
Fig. 4 is a schematic diagram of a flow of information collection of on-board network devices.
The invention is further described below with reference to the drawings and examples.
Detailed Description
See fig. 1. Is a typical scenario for satellite internet systems.
Typical satellite internets include HEO/LEO satellites, ground gateway stations, GEO satellites, and management and control centers. The HEO/LEO comprises a satellite-ground connection satellite, a satellite-ground connection satellite and a general satellite, and network switching equipment is deployed to complete the switching transmission of local data and inter-satellite data. The ground gateway station comprises an HEO/LEO gateway station and a GEO gateway station, and management and control equipment is deployed to realize the receiving, transmitting, forwarding and the like of management and control information. The GEO satellite is provided with network switching equipment and is responsible for HEO/LEO data, GEO satellite data exchange transmission and the like. The control center realizes control path formation, control information transmission and the like.
See fig. 2. The on-board network device manages the path formation flow.
Step 1, the control center receives network topology data (from a network topology forming unit in the system), and calculates the hop count and time delay from each general satellite of the satellite group between adjacent gateway stations to the satellite-ground and satellite-ground connection satellite corresponding to two gateway stations respectively.
And 2, comparing the path delay and hop count of the gateway station to each general satellite by the control center for the satellite group between adjacent gateway stations.
And 3, selecting a path with the minimum path delay as a control path of the satellite by the control center. If the two paths are delayed by a certain amount, the path with the smallest hop count is selected (usually, in the case of two paths, namely, the star and the star, the star is selected as the final path). The path mainly can include gateway station management and control equipment IP, destination satellite IP, path length, gateway station management and control equipment satellite-ground link number or satellite-ground link number (corresponding to which link the management and control information is transmitted), satellite-ground connection satellite outlet port number, satellite n outlet port number, and return path (destination satellite IP, gateway station management and control equipment IP, path length, destination satellite outlet port number, satellite n outlet port number).
Step 4: the management and control center associates all paths passing through each gateway station with the gateway station IP, namely, a certain time period, and the paths from a certain gateway station to all satellites correspond to the IP of the gateway station management and control equipment.
See fig. 3. And (5) controlling a flow of the on-board network equipment.
And step 1, forming control information with bidirectional path information by the control center according to the path information of a certain time period, namely adding the bidirectional path information before the control information.
And 2, the control center firstly transmits the control information to the gateway station control equipment related to the path. The control device then takes out the control information and transmits it to the satellite-earth connection satellite or satellite-earth connection satellite via the satellite-earth link or satellite-earth link.
And 3, transmitting the control information to the next satellite according to the designated control path, and so on until the control information reaches the target satellite.
See fig. 4. And (5) information collection flow of the on-board network equipment.
And step 1, receiving the control information by the target satellite-borne network equipment, and taking out a return path in the control information.
And 2, the on-board network equipment forms network equipment information with return path information, namely, adds a return path in the return parameter and the state information.
And 3, the on-board network equipment transmits the information to the next satellite, and so on until the information is transmitted to the corresponding ground gateway station management and control equipment.
Step 4: the ground gateway station management and control equipment receives the information of the corresponding satellite-borne network equipment and sends the information to the management and control center.
The foregoing is merely a preferred embodiment for implementing satellite internet on-board network device control, and it is to be understood that the invention is not limited to the form disclosed herein and is not to be construed as excluding other embodiments, but is capable of use in various other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept described herein, either by way of the foregoing teachings or by way of the skill or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (1)
1. A method for managing and controlling constellation on-board network equipment, the method comprising:
step 1, calculating a control path of the satellite-borne network equipment;
step 1.1: the management and control center receives network topology data, comprising: inter-satellite links, satellite-to-ground links, and terrestrial links;
step 1.2: the control center calculates a path from the control center to the satellite, comprising: the gateway station is connected with the destination satellite through the satellite-to-ground and inter-satellite links and the destination satellite through the satellite-to-ground and inter-satellite links;
step 1.3: the control center calculates the paths from the satellites to the control center, wherein the paths comprise the paths from the satellites to the gateway station through inter-satellite links and the paths from the satellites to the gateway station through inter-satellite links and inter-satellite links;
step 2: control of the on-board network device;
step 2.1: the control center calculates control information with bidirectional path information according to the control path of the satellite-borne network equipment;
step 2.1.1: calculating the control path time delay and hop count between the gateway station and the satellite according to the constellation satellite node and gateway station node topological relation of the relevant time period, obtaining the path with the shortest time delay and the shortest hop count, and associating the gateway station with the satellite passing through the gateway station;
step 2.1.2: reporting the information obtained by calculation in the step 2.1.1 to a management and control center, and calculating the path of a management and control instruction of the related satellite to the gateway station through the management and control center by the management and control center;
step 2.1.3: forming a path set, a path change set and a satellite node set which need to be managed and controlled by taking a time period as a reference according to the path obtained in the step 2.1.2, combining the two-way path information, and carrying the two-way path information into control information;
step 2.2: the control center sends control information to the corresponding gateway station according to the control path of the satellite-borne network equipment;
step 2.3: the gateway station management and control equipment receives the control information and sends the control information to the corresponding satellite nodes according to the paths;
step 3: information collection flow of on-board network equipment
Step 3.1: the method comprises the steps that a satellite-borne network device receives control information and takes out a return path in the control information;
step 3.2: the method comprises the steps that the satellite-borne network equipment forms network equipment information with return path information;
step 3.3: the constellation network equipment sends the information to the corresponding ground gateway station according to the return path;
step 3.4: the ground gateway station management and control equipment receives corresponding information of the satellite-borne network equipment and sends the information to the management and control center.
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