CN113543170B - Satellite communication system architecture based on space computation and service application processing method - Google Patents
Satellite communication system architecture based on space computation and service application processing method Download PDFInfo
- Publication number
- CN113543170B CN113543170B CN202110234061.4A CN202110234061A CN113543170B CN 113543170 B CN113543170 B CN 113543170B CN 202110234061 A CN202110234061 A CN 202110234061A CN 113543170 B CN113543170 B CN 113543170B
- Authority
- CN
- China
- Prior art keywords
- resource
- satellite
- layer
- requirements
- network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 76
- 238000003672 processing method Methods 0.000 title abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000000007 visual effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 238000004364 calculation method Methods 0.000 claims description 8
- 230000010365 information processing Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims 12
- 239000002346 layers by function Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 15
- 230000006855 networking Effects 0.000 description 18
- 238000007726 management method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010295 mobile communication Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 230000036544 posture Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a satellite communication system architecture and a service application processing method based on space computation, wherein the satellite communication system architecture comprises the following components: the system comprises a service arrangement layer, a network function layer and a basic resource layer, wherein the service arrangement layer is used for converting different accessed service application requirements into corresponding resource requirements and transmitting the resource requirements to the network function layer; the network function layer is used for receiving the resource requirement and scheduling corresponding resource equipment from the basic resource layer according to the resource requirement; the base resource layer is used for converging the space heterogeneous processing resource equipment and the ground resource equipment to form a virtual resource pool, so that the network function layer can schedule corresponding virtual resources from the virtual resource pool and map the virtual resources to the resource equipment. Therefore, uniform description and flow deployment of heterogeneous resources are completed through a virtualization technology, efficient scheduling of space resources is achieved, and differentiated service guarantee requirements of vertical industry application are met.
Description
Technical Field
The invention relates to the technical field of satellite communication, in particular to a satellite communication system architecture based on space computation and a service application processing method.
Background
With the rapid development of commercial aerospace, various countries in the world develop development strategies and invest huge resources, and the construction of a space network with a low-orbit satellite network as a focus is laid out, so that the development of a global satellite communication system is promoted. Satellite communication gradually becomes an important component of global information infrastructure due to the advantages of wide coverage, strong mobility, broadcast distribution and the like, and the problem of internet access in the limited areas of the old and young is mainly solved.
Satellite communication systems can be generally divided into three parts, a user side, a ground section and a space section. The user end refers to various satellite users distributed in the field of the sea, the land, the air and the space; the ground section is a ground station formed by a data processing center, a transport control center, a management service platform and the like, and is an interface of the space section and a ground network; the space section is the core of the whole communication system and mainly consists of a constellation of one or more satellites which are deployed in different orbit heights such as high, medium and low orbits and the like, and the space section plays a role of a signal transfer station in the air and is responsible for space information transmission processing. The development of satellite communication systems is seen, and the satellite communication systems are always developed in a rolling way under the double promotion of technology and application.
In technical terms, the space segment computing processing capability (space computation for short) directly affects the networking architecture of the whole satellite communication system. The method is limited by space devices, the space computing capacity is very limited, the only computing capacity on the satellite is mainly used for controlling a satellite platform, and a transparent forwarding mode is adopted for service application data, namely, the satellite does not process information of the service application data and only amplifies, converts and forwards the service application data on a physical signal level; in the current and future period, with the progress of aerospace electronic technology and the standardized use of commercial goods shelf devices (COTS) in the aerospace field, the satellite communication system has stronger space computing capability, and can perform demodulation regeneration, signal conversion and other processes on service application data, so that the functions of communication, networking, service application processing and the like are realized. Satellite communication systems will also gradually shift from transparent forwarding to on-board processing modes, which has become a trend in satellite communication systems.
In application, space network technology represented by satellite communication is developed gradually, and besides traditional service applications such as trunk line interconnection, private network communication, global mobile communication and the like, the application of the space network technology is also gradually realized in vertical industries such as broadband access, space-based relay, wide area Internet of things, time-sensitive control and the like, and differentiated service application presents the characteristics of complex and changeable requirements and quite different service quality requirements, such as low time delay and small jitter required by control application, and the Internet of things application is greatly connected. The traditional satellite communication system has the problems of single structure, fixed functions, lack of flexibility and the like, cannot sense application, and is difficult to efficiently schedule space resources to quickly adapt to diversified application requirements.
In order to realize global seamless coverage, the networking architecture of the satellite communication system can be subdivided into two technical routes of a astronomical ground network and a astronomical ground network. Wherein, the astronomical ground network, namely, the transparent forwarding is adopted on the star, and the ground networking is realized through the global deployment of ground stations; the space network earth screen, i.e. depending on inter-satellite chain technology, the satellite and the ground are both networked, and the advantages of the two networks are complementary. In view of the fact that China does not have the ground stations distributed globally, the global coverage cannot be realized by adopting the networking architecture of the 'astronomical ground network', and the networking architecture of the 'astronomical ground network' is a necessary choice.
In view of the requirements of improving the space computing capacity and differentiating satellite service applications, a new satellite communication system architecture is needed to be provided, the increasingly improved space computing capacity is fully utilized, the space resources are rapidly and efficiently scheduled to complete communication, networking and service application processing, and the differentiated service guarantee requirements of the vertical industry are met.
Disclosure of Invention
The invention provides a satellite communication system architecture based on space calculation and a service application processing method, which aims to solve the technical problem of how to efficiently utilize and schedule space resources based on service demand difference.
A satellite communication system architecture based on space computation according to an embodiment of the present invention includes:
the business arrangement layer is used for converting the accessed different business application requirements into corresponding resource requirements and transmitting the resource requirements to the network function layer;
the network function layer is used for receiving the resource requirements and scheduling corresponding resource equipment from the basic resource layer according to the resource requirements;
and the basic resource layer is used for converging the space heterogeneous processing resource equipment and the ground resource equipment to form a virtual resource pool, so that the network function layer can schedule virtual resources from the virtual resource pool and map the virtual resources to the corresponding resource equipment.
According to the satellite communication system architecture based on space computation, uniform description and flow deployment of heterogeneous resources are completed through a virtualization technology, and efficient scheduling of space resources is achieved; aiming at different application requirements such as broadband access, space-based relay, wide area Internet of things, time-sensitive control and the like, corresponding resource equipment is scheduled according to the requirements, and the differentiated service guarantee requirements of vertical industry application are met.
According to some embodiments of the invention, the resource requirements include: at least one of a spatial computing resource, a storage resource, and a network resource.
In some embodiments of the invention, the base resource layer further comprises: and the special resource layer is used for providing special resource equipment for the preset service.
In some embodiments of the invention, the spatially heterogeneous processing resource device comprises: high-orbit node satellite, medium-orbit node satellite and low-orbit node satellite; the ground resource apparatus includes: the system comprises a gateway station, a network operation and maintenance management device, an information processing device, an information storage device and an application service device.
According to some embodiments of the invention, the high orbit node satellite comprises: an in-home visual node and an in-home non-visual node, wherein the in-home visual node is in direct interconnection communication with the ground resource equipment, and the in-home non-visual node is in indirect interconnection communication with the ground resource equipment through the in-home visual node.
In some embodiments of the present invention, the middle-orbit node satellite and the low-orbit node satellite are in interconnection communication with the ground resource device through a high-frequency band transmission link, the middle-orbit node satellite and the low-orbit node satellite are in interconnection communication with the high-orbit node satellite through an S-frequency band measurement and control link, and the middle-orbit node satellite and the low-orbit node satellite are in interconnection communication through a Ka-frequency band or a laser-frequency band.
According to some embodiments of the invention, the business application requirements include: broadband access requirements, space-based relay requirements, wide area internet of things requirements, and time-sensitive control requirements.
According to the method for processing the service application based on the satellite communication, which is provided by the embodiment of the invention, the space computation-based satellite traffic architecture is adopted for processing the service application, and the method comprises the following steps:
s1, translating the service application requirements into required resource requirements through the service arrangement layer according to the accessed service application requirements, and sending a requirement instruction to the network function layer through a standardized interface;
s2, the network function layer maps the resource requirements to a network slice template based on the received requirement instructions;
s3, based on the network slice template, network function deployment is carried out on the virtual resource pool of the basic resource layer;
s4, the basic resource layer is deployed according to the network function, and corresponding resource equipment is configured through the virtual resources in the virtual resource pool.
According to the service application processing method based on satellite communication, through a virtualization technology, the unified description model of heterogeneous resources, the flow deployment of network functions such as access/bearing/core and the like are completed, and efficient scheduling of space resources is realized; aiming at different application requirements such as broadband access, space-based relay, wide area Internet of things, time-sensitive control and the like, providing an end-to-end network slice, and meeting the differentiated service guarantee requirements of vertical industry application; the satellite communication system can realize global coverage without global station arrangement by adopting a high-low orbit combined networking architecture.
According to some embodiments of the invention, the method further comprises:
a1, for preset service, the service arrangement layer commands the operation of the monitoring satellite through the satellite operation control system and sends an instruction to the satellite network control system to command the satellite to work and transmit information;
and A2, satellite network control dispatches special resources from a special resource layer according to the instruction of the satellite operation control system and combining the working state of the space resources to finish the preset service.
Drawings
FIG. 1 is a schematic diagram of a satellite network physical architecture according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a high-rail network architecture according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a medium-low rail network according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a ground node network topology according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a satellite network architecture according to an embodiment of the present invention;
FIG. 6 is a diagram of a base resource layer according to an embodiment of the present invention;
FIG. 7 is a diagram of network function layers according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a business orchestration layer according to an embodiment of the present invention.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description of the present invention is given with reference to the accompanying drawings and preferred embodiments.
The existing satellite communication system has the following defects:
the traditional satellite communication system does not process information on service application data, and cannot utilize space resources to realize communication, networking and service application processing; the traditional satellite communication system has single structure, fixed functions and lack of flexibility, and cannot meet the differentiated requirements of the vertical industry; in order to realize global coverage, the networking architecture of the astronomical mesh is not suitable for the national conditions without global distribution ground stations in China.
In view of the above problems, the present invention provides a satellite communication system architecture and a service application processing method based on space computation.
A satellite communication system architecture based on space computation according to an embodiment of the present invention includes: a business arrangement layer, a network function layer and a basic resource layer.
The service arrangement layer is used for converting the accessed different service application requirements into corresponding resource requirements and transmitting the resource requirements to the network function layer;
the network function layer is used for receiving the resource requirement and scheduling corresponding resource equipment from the basic resource layer according to the resource requirement;
the base resource layer is used for converging the space heterogeneous processing resource equipment and the ground resource equipment to form a virtual resource pool, so that the network function layer can schedule virtual resources from the virtual resource pool and map the virtual resources to corresponding resource equipment.
According to the satellite communication system architecture based on space computation, uniform description and flow deployment of heterogeneous resources are completed through a virtualization technology, and efficient scheduling of space resources is achieved; aiming at different application requirements such as broadband access, space-based relay, wide area Internet of things, time-sensitive control and the like, corresponding resource equipment is scheduled according to the requirements, and the differentiated service guarantee requirements of vertical industry application are met.
According to some embodiments of the invention, the resource requirements include: at least one of a spatial computing resource, a storage resource, and a network resource. That is, the resource requirements may include space computing resources, storage resources, network resources, and, of course, may include: two or three of a spatial computing resource, a storage resource, and a network resource.
In some embodiments of the invention, the base resource layer further comprises: and the special resource layer is used for providing special resource equipment for the preset service. For example, for conventional satellite service applications, the service orchestration layer is done by scheduling dedicated resource devices in the dedicated resource layer.
In some embodiments of the present invention, a spatially heterogeneous processing resource device includes: high-orbit node satellite, medium-orbit node satellite and low-orbit node satellite; the ground resource equipment comprises: the system comprises a gateway station, a network operation and maintenance management device, an information processing device, an information storage device and an application service device.
According to some embodiments of the invention, a high orbit node satellite comprises: an in-home visual node and an in-home non-visual node, wherein the in-home visual node is in direct interconnection communication with the ground resource equipment, and the in-home non-visual node is in indirect interconnection communication with the ground resource equipment through the in-home visual node.
In the aspect of high-orbit nodes, in order to meet the requirements of space users in China on transmission capacity, coverage performance and the like, and simultaneously, taking the frequency and orbit resource conditions in China into consideration, six high-orbit nodes distributed on a geosynchronous orbit are selected, each node consists of one or more communication satellites with similar distances or common orbits, and an inter-satellite laser or microwave link networking is utilized to provide global relay transmission and high-capacity information transmission service for space users. The distribution and network topology of all nodes of the high rail are shown in figure 2, and the high rail node 1, the high rail node 2, the high rail node 3 and the high rail node 4 are internal visible nodes and are directly interconnected with ground nodes; the high-rail nodes 5 and 6 are invisible nodes and are connected with ground nodes through high-rail nodes 1-4.
In some embodiments of the present invention, the medium-orbit node satellite and the low-orbit node satellite are in interconnection communication with the ground resource device through a high-frequency band transmission link, the medium-orbit node satellite and the low-orbit node satellite are in interconnection communication with the high-orbit node satellite through an S-frequency band measurement and control link, and the medium-orbit node satellite and the low-orbit node satellite are in interconnection communication through a Ka-frequency band or a laser-frequency band.
According to some embodiments of the invention, the business application requirements include: broadband access requirements, space-based relay requirements, wide area internet of things requirements, and time-sensitive control requirements.
According to the method for processing the service application based on the satellite communication, which is provided by the embodiment of the invention, the space computation-based satellite traffic architecture is adopted for processing the service application, and the method comprises the following steps:
s1, translating the service application requirements into required resource requirements through a service arrangement layer according to the accessed service application requirements, and sending a requirement instruction to a network function layer through a standardized interface;
s2, the network function layer maps the resource requirements to a network slice template based on the received requirement instructions;
s3, based on the network slice template, network function deployment is carried out on the virtual resource pool of the basic resource layer;
and S4, the basic resource layer is deployed according to the network function, and corresponding resource equipment is configured through virtual resources in the virtual resource pool.
According to the service application processing method based on satellite communication, through a virtualization technology, the unified description model of heterogeneous resources, the flow deployment of network functions such as access/bearing/core and the like are completed, and efficient scheduling of space resources is realized; aiming at different application requirements such as broadband access, space-based relay, wide area Internet of things, time-sensitive control and the like, providing an end-to-end network slice, and meeting the differentiated service guarantee requirements of vertical industry application; the satellite communication system can realize global coverage without global station arrangement by adopting a high-low orbit combined networking architecture.
According to some embodiments of the invention, the method further comprises:
a1, for preset service, the service arrangement layer commands and monitors the operation of the satellite through the satellite operation control system and sends an instruction to the satellite network control system to command the satellite to work and transmit information;
a2, satellite network control dispatches special resources from a special resource layer according to the instruction of the satellite operation control system and combining the working state of the space resources to finish the preset service.
The architecture of the satellite communication system based on space computation and the service application processing method according to the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the following description is exemplary only and is not to be taken as limiting the invention in any way.
The invention aims to provide a satellite communication system architecture based on space computation, which aims to fully utilize increasingly improved space computation capability, rapidly and efficiently utilize and schedule space resources to finish communication, networking and business application processing, meet the application differentiated service guarantee requirements of vertical industries, and simultaneously reduce global station distribution and ground processing dependence.
According to the satellite communication system architecture based on space computation, a high-middle-low orbit satellite mixed networking architecture is constructed based on space computation, and the architecture comprises a functional architecture and a physical architecture.
1. Functional architecture: with reference to advanced technical ideas such as SDN/NFV, and referring to a ground 5G network architecture, a satellite network function architecture is provided and mainly comprises a basic resource layer, a network function layer and a service arrangement layer.
(1) And the basic resource layer provides a cloud base platform for the satellite communication system. Mainly comprises two parts: the virtualized resource layer is used for converging the space heterogeneous processing resources and the ground resources to form a unified virtual resource pool through a virtualization and cloud computing technology based on space computation; the special resource layer is mainly a special load required by traditional business applications such as satellite relay, backbone interconnection and the like, and the resource virtualization is difficult to realize by adopting special equipment for the part of resources.
(2) And the network function layer is used for constructing a ubiquitous intelligent network for the satellite communication system. The system mainly comprises virtualized access/bearing/core network functions, a software defined network controller, a satellite network control system responsible for controlling special equipment and the like, wherein the functions of access, bearing, core and the like are deployed in a software manner on the ground, high-middle-low orbit nodes, and the system realizes efficient resource control and end-to-end slicing of differentiated services oriented to the vertical industry.
(3) And the business arrangement layer provides differentiated on-demand services for the satellite communication system. The application requirements are translated into network parameters, and the network parameters are transmitted to a network function layer through a standard API interface, so that efficient scheduling of space calculation, storage, network and other resources according to typical service application requirements is realized.
2. Physical architecture: the high-low orbit satellite combined networking system adopts a physical architecture of high-low orbit satellite cooperation and space-earth integration, and is composed of a plurality of high orbit nodes, medium orbit nodes, low orbit nodes and ground nodes, wherein the nodes are formed by interconnection of various satellite-earth links and inter-satellite links, so that the high-low orbit satellite combined networking is realized.
The high orbit node is a satellite deployed in the geosynchronous orbit, the coverage area of a single satellite is wide, the global coverage can be realized by only 3 high orbit satellites, and the high orbit node has the advantages of small satellite quantity, small global coverage, less switching, simple satellite tracking control and the like, and can provide the functions of broadband access, backbone interconnection, relay transmission, space-based measurement and control and the like. The high orbit node also comprises a high orbit information port, which is composed of a plurality of modularized satellites which are in common orbit in a synchronous orbit, and the satellites are connected through inter-satellite links to form a virtual large satellite, so that high-performance and high-efficiency space information processing service can be provided for users.
The medium orbit node is a satellite with orbit height between 10000 and 20000km, the constellation is generally composed of more than ten satellites, and can provide voice service and broadband data service. As a compromise between the high-orbit node and the low-orbit node, the transmission delay of the medium-orbit satellite is smaller than that of the high-orbit satellite, the communication system with global coverage can be formed by a smaller number of medium-orbit satellites, and the constellation switching probability is lower than that of the low-orbit satellite.
The low orbit nodes are distributed on a circular or elliptical orbit of 500-2000 km, and the constellation generally consists of dozens of satellites, so that voice service, message service and broadband data service can be provided. The low orbit node has low orbit, excellent satellite-ground link performance, small transmission delay, small satellite volume and convenient emission. But the single satellite has short visibility time and requires beam-to-beam and satellite-to-satellite handoff.
The ground node is composed of gateway station, network operation and maintenance management, information processing, information storage, application service and other functional parts, mainly completes functions of network control, resource management, protocol conversion, information processing, fusion sharing and the like, and is interconnected and intercommunicated with other ground networks.
In addition, the existing satellites of various types are integrated into a network architecture, including communication, navigation and remote sensing satellites. The communication satellite completes voice and data transmission, the navigation satellite is responsible for positioning service, and the remote sensing satellite provides earth observation information. The navigation satellite and the remote sensing satellite can sense and acquire the ground environment information, and provide basis for reconstructing and distributing communication network resources.
In summary, the method for constructing a satellite communication system has the following advantages:
through a virtualization technology, the unified description model of heterogeneous resources, the flow deployment of network functions such as access/bearing/core and the like are completed, and the efficient scheduling of space resources is realized; aiming at different application requirements such as broadband access, space-based relay, wide area Internet of things, time-sensitive control and the like, providing an end-to-end network slice, and meeting the differentiated service guarantee requirements of vertical industry application; the satellite communication system can realize global coverage without global station arrangement by adopting a high-low orbit combined networking architecture.
The space computation based satellite communication system architecture of the present invention is described in detail below with reference to the accompanying drawings in three specific embodiments. It is to be understood that the following description is exemplary only and is not to be taken as limiting the invention in any way.
Embodiment one:
the physical architecture of the present invention is shown in fig. 1, and mainly comprises the following contents:
(1) The user accesses various network access services of multiple layers of massive users including land, sea, air, sky and the like to form a network which covers the world (including two-pole regions), is accessed along with meeting and is served as required, and the user side can access through a high-rail node, a middle-low-rail node, a ground mobile communication network and the ground Internet.
(2) In the aspect of high-orbit nodes, in order to meet the requirements of space users in China on transmission capacity, coverage performance and the like, and simultaneously, taking the frequency and orbit resource conditions in China into consideration, six high-orbit nodes distributed on a geosynchronous orbit are selected, each node consists of one or more communication satellites with similar distances or common orbits, and an inter-satellite laser or microwave link networking is utilized to provide global relay transmission and high-capacity information transmission service for space users. The distribution and network topology of all nodes of the high rail are shown in figure 2, and the nodes 1, 2, 3 and 4 of the high rail are internal visible nodes and are directly interconnected with ground nodes; the high-rail nodes 5 and 6 are non-visible nodes in the environment and are connected with ground nodes through No. 1-No. 4 nodes.
(3) The network topology of the middle-low rail nodes is a dynamic non-full-penetration three-dimensional grid structure, the same rail surfaces are fully communicated, and different rail surfaces are not fully penetrated, as shown in fig. 3. The medium-low rail nodes are configured with high-frequency band (Ka, EHF and the like) transmission links to support interconnection with ground nodes; the medium-low rail node can select and configure an S frequency band measurement and control link between the medium-low rail node and the high rail node; the inter-satellite links between the middle and low rail nodes can select Ka or laser frequency bands. And (3) configuring Ka and L frequency band user links to meet the application requirements of different types of users, and realizing the random access of wide and narrow users.
(4) The ground nodes are networked through a ground network. Considering three factors of economy, technology and application comprehensively, the ground nodes are deployed in 15 sites temporarily (see figure 4), and the ground nodes are interconnected by using the ground optical fiber transmission links to form a ground node network. The ground node also comprises a ground information port, so that interconnection and interworking of a space network, a ground Internet and a mobile communication network are realized, and meanwhile, network resources are integrally controlled, and the resources are integrally regulated and controlled according to user types and service application types.
(5) Besides the nodes, the space nodes are used for satellite traditional service applications such as space-based information acquisition, space-based space-time reference and the like. The space-based information acquisition system mainly relies on remote sensing satellites such as early warning, mapping, weather and the like to discover, identify and monitor objects on the ground surface, in the air and in the space from the outer space, so as to acquire the objects and environmental information. The space-based space-time reference system is mainly based on navigation satellites, can provide time and space references for users on land, sea, air and space,
embodiment two:
the functional architecture of the present invention is shown in fig. 5, and mainly includes the following matters:
(1) The base resource layer includes satellite, ground node virtualizable resources, and satellite node dedicated resources, as shown in fig. 6. The virtualized resource is formed by carrying out virtualization treatment on heterogeneous processing resources such as CPU, GPU, DSP, FPGA and the like and ground resources which are scattered on each satellite node, so that a uniform virtual resource pool is formed, the virtualized resource pool is an infrastructure of a next-generation satellite network and is an entity of specific tasks such as network functions, business applications and the like, and the resources of the virtual resource pool adopt a uniform heterogeneous resource description model so as to shield the differentiation of node resources.
In addition, the system also comprises special resources, which are mainly special loads required by traditional business applications such as satellite relay and backbone interconnection, and the resource virtualization is difficult to realize by adopting special equipment.
(2) The network function layer includes a cloud management platform, virtual network function management, software defined network control, and satellite network control, as shown in fig. 7.
The cloud management platform utilizes a virtual resource pool formed by mapping between physical resources and virtual resources to realize unified characterization and pooling management of node resources in a network, and simultaneously, according to service application characteristics and a fine-grained state of the resources, the cloud management platform discovers and adjusts allocation strategies of the resources in real time to support automatic deployment and fault tolerance recovery of services.
The virtual network function management adopts a resource virtualization technology based on a container, and deploys wireless access, bearing and core network processing functions on high-rail, medium-low-rail and ground nodes according to service application requirements and space computing capacity, so that lightweight flow deployment of network functions is realized, and communication service requirements of different service applications are met.
The software defined network control strips the control layer from the basic network resource by decoupling the control layer and the data layer, simplifies the complexity of the bottom layer resource, shields the difference of the bottom layer resource, and the upper layer application can operate the bottom layer resource through the API provided by the software controller, thereby controlling the whole network.
The satellite network control is a special resource for traditional service application, and mainly solves the problems of resource scheduling, equipment management, connection with a ground network and the like. By combining the characteristics of space resources, the application strategy is implemented by scheduling the satellite and ground measurement and control resources through task planning, and the organization system realizes the high-reliability completion of the satellite tasks. Meanwhile, the satellite network control is also responsible for monitoring and controlling the working state and parameters of each device and for distributing and recovering controllable channel resources such as frequency, power and the like.
(3) The service arrangement layer is shown in fig. 8, and for service applications such as broadband access, space-based relay, wide area internet of things, time-sensitive control and the like of satellite network access, according to a space-based and military-civil heterogeneous network application feature model, the requirements of the applications are analyzed and translated into required calculation, storage and network resource parameters, then the required resources and network load states are comprehensively analyzed, the resource requirements are transferred to the network function layer through a standardized interface, so that efficient scheduling of the resources such as calculation, storage and network according to typical service application requirements is realized, and the differentiated service guarantee requirements of the vertical industry are met.
In addition, the service arrangement layer is also provided with a satellite operation control system for directing and monitoring the operation of the satellites of the traditional service application by using a plurality of computers, and is responsible for sending various instructions to the satellites, arranging satellite working programs, controlling the operation postures of the satellites, directing the satellite to work and transmit information, controlling the work coordination of the satellite-borne instrument and the ground station, and the like.
Embodiment III:
the processing flow for the access service application in the invention is as follows:
1) The received service application requirements of broadband access, space-based relay, wide area Internet of things, time-sensitive control and the like are translated into required calculation, storage and network resource parameters through a service arrangement layer, and a requirement instruction is sent to a basic resource layer and a network function layer through a standardized interface;
2) After receiving a demand instruction of a service arrangement layer, a network function layer maps user demands to a network slice template, and decomposes the user demands into access network, transmission network and core network sub-slices, so that end-to-end network slices are realized, and service application deployment demands are met;
3) According to the requirement of the network slicing template, network functions such as access/bearing/core and the like are deployed on virtualized resources of a basic resource layer;
4) The base resource layer completes the virtualization of the satellite and the ground node through a lightweight virtualization technology to form a virtualized resource pool, and the virtualized resources are configured according to a network function deployment scheme.
5) In addition to the above flow, for the traditional satellite service application, the service arrangement layer directs the operation of the monitoring satellite through the satellite operation control system and sends instructions to the satellite network control system, directs the satellite to work and transmits information; the satellite network control is used for scheduling satellite and ground special resources according to the Wei Xingyun control instruction and combining the space resource working state, so that the satellite task can be completed with high reliability.
While the invention has been described in connection with specific embodiments thereof, it is to be understood that these drawings are included in the spirit and scope of the invention, it is not to be limited thereto.
Claims (4)
1. A satellite communications system architecture based on spatial computing, comprising:
the business arrangement layer is used for converting the accessed different business application requirements into corresponding resource requirements and comprises the following steps: analyzing and translating different application demands into required calculation, storage and network resource parameters, comprehensively analyzing demand resources and network load states, and transmitting the resource demands to a network function layer;
the network function layer is used for receiving the resource requirements and scheduling corresponding resource equipment from the basic resource layer according to the resource requirements;
the base resource layer is used for converging the space heterogeneous processing resource equipment and the ground resource equipment to form a virtual resource pool, and the space heterogeneous processing resource equipment comprises: high-orbit node satellite, medium-orbit node satellite and low-orbit node satellite; the ground resource apparatus includes: the gateway station, the network operation and maintenance management equipment, the information processing equipment, the information storage equipment and the application service equipment, wherein the middle-orbit node satellite and the low-orbit node satellite are in interconnection communication with the ground resource equipment through a high-frequency band transmission link, the middle-orbit node satellite and the low-orbit node satellite are in interconnection communication with the high-orbit node satellite through an S-frequency band measurement and control link, and the middle-orbit node satellite and the low-orbit node satellite are in interconnection communication through a Ka frequency band or a laser frequency band so as to allow the network functional layer to schedule virtual resources from the virtual resource pool and map the virtual resources to the corresponding resource equipment;
the method for carrying out service application processing by adopting the satellite communication system architecture based on space calculation comprises the following steps:
s1, translating the service arrangement layer into required resource requirements according to the accessed service application requirements, wherein the method comprises the following steps: analyzing and translating different application demands into required calculation, storage and network resource parameters, comprehensively analyzing demand resources and network load states, and sending demand instructions to the network function layer through a standardized interface by the resource demands;
s2, the network function layer maps the resource requirements to a network slice template based on the received requirement instructions;
s3, based on the network slice template, network function deployment is carried out on the virtual resource pool of the basic resource layer;
s4, the basic resource layer is deployed according to the network function, and corresponding resource equipment is configured through the virtual resources in the virtual resource pool.
2. The space computation-based satellite communication system architecture of claim 1, wherein the base resource layer further comprises: and the special resource layer is used for providing at least one of special resource devices for the preset service.
3. The space computation-based satellite communication system architecture of claim 1, wherein the high-earth node satellite comprises: an in-home visual node and an in-home non-visual node, wherein the in-home visual node is in direct interconnection communication with the ground resource equipment, and the in-home non-visual node is in indirect interconnection communication with the ground resource equipment through the in-home visual node.
4. The space computation-based satellite communication system architecture of claim 1, wherein the business application requirements include: broadband access requirements, space-based relay requirements, wide area internet of things requirements, and time-sensitive control requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110234061.4A CN113543170B (en) | 2021-03-03 | 2021-03-03 | Satellite communication system architecture based on space computation and service application processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110234061.4A CN113543170B (en) | 2021-03-03 | 2021-03-03 | Satellite communication system architecture based on space computation and service application processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113543170A CN113543170A (en) | 2021-10-22 |
| CN113543170B true CN113543170B (en) | 2024-03-01 |
Family
ID=78124295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110234061.4A Active CN113543170B (en) | 2021-03-03 | 2021-03-03 | Satellite communication system architecture based on space computation and service application processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113543170B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114363959A (en) * | 2022-01-07 | 2022-04-15 | 中国联合网络通信集团有限公司 | Data distribution method, device, system, equipment and medium |
| CN115037590B (en) * | 2022-03-25 | 2023-08-11 | 烽火通信科技股份有限公司 | Network virtualization architecture and virtualization method |
| CN114826377B (en) * | 2022-04-08 | 2024-02-06 | 中国卫通集团股份有限公司 | Satellite virtual operation management access system and method |
| CN115133973A (en) * | 2022-05-20 | 2022-09-30 | 清华大学 | Lightweight distributed arrangement system and method for satellite |
| CN114996026B (en) * | 2022-08-01 | 2022-12-30 | 阿里巴巴达摩院(杭州)科技有限公司 | Resource virtualization method, communication assembly, equipment and system |
| CN116032892B (en) * | 2022-12-30 | 2023-11-28 | 北京卫星导航中心 | Wide area space-time information guarantee network system integrating time-frequency transmission and data transmission |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012055446A1 (en) * | 2010-10-29 | 2012-05-03 | Nokia Siemens Networks Gmbh & Co. Kg. | Dynamic creation of virtualized network topology |
| CN106685511A (en) * | 2016-11-02 | 2017-05-17 | 北京邮电大学 | Spatial information network architecture |
| CN107370835A (en) * | 2017-09-11 | 2017-11-21 | 郑州云海信息技术有限公司 | A kind of cloud computing center network architecture based on SDN and NFV technologies |
| CN107743100A (en) * | 2017-09-30 | 2018-02-27 | 重庆邮电大学 | A kind of online adaptive network section virtual resource allocation method based on traffic forecast |
| CN108282357A (en) * | 2017-12-12 | 2018-07-13 | 中国电子科技集团公司电子科学研究院 | A kind of network dicing method, device and computer readable storage medium |
| CN109714219A (en) * | 2019-03-13 | 2019-05-03 | 大连大学 | A kind of virtual network function fast mapping algorithm based on satellite network |
| CN109873767A (en) * | 2019-03-29 | 2019-06-11 | 中山大学 | Incorporate network virtualization method based on the forwarding of agreement unaware |
| CN111010293A (en) * | 2019-11-27 | 2020-04-14 | 中国联合网络通信集团有限公司 | Virtual resource management method and device |
| CN111813560A (en) * | 2020-08-13 | 2020-10-23 | 中国人民解放军国防科技大学 | Intelligent space-based system based on cloud pond end |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11075844B2 (en) * | 2019-08-15 | 2021-07-27 | Netsia, Inc. | Apparatus and method for providing hybrid access coordination |
-
2021
- 2021-03-03 CN CN202110234061.4A patent/CN113543170B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012055446A1 (en) * | 2010-10-29 | 2012-05-03 | Nokia Siemens Networks Gmbh & Co. Kg. | Dynamic creation of virtualized network topology |
| CN106685511A (en) * | 2016-11-02 | 2017-05-17 | 北京邮电大学 | Spatial information network architecture |
| CN107370835A (en) * | 2017-09-11 | 2017-11-21 | 郑州云海信息技术有限公司 | A kind of cloud computing center network architecture based on SDN and NFV technologies |
| CN107743100A (en) * | 2017-09-30 | 2018-02-27 | 重庆邮电大学 | A kind of online adaptive network section virtual resource allocation method based on traffic forecast |
| CN108282357A (en) * | 2017-12-12 | 2018-07-13 | 中国电子科技集团公司电子科学研究院 | A kind of network dicing method, device and computer readable storage medium |
| CN109714219A (en) * | 2019-03-13 | 2019-05-03 | 大连大学 | A kind of virtual network function fast mapping algorithm based on satellite network |
| CN109873767A (en) * | 2019-03-29 | 2019-06-11 | 中山大学 | Incorporate network virtualization method based on the forwarding of agreement unaware |
| CN111010293A (en) * | 2019-11-27 | 2020-04-14 | 中国联合网络通信集团有限公司 | Virtual resource management method and device |
| CN111813560A (en) * | 2020-08-13 | 2020-10-23 | 中国人民解放军国防科技大学 | Intelligent space-based system based on cloud pond end |
Non-Patent Citations (6)
| Title |
|---|
| Research on Online Extraction of Spatial Index Information for Multi-Source Surveying and Mapping Data Based on Cloud Storage;J. Y. Zhang, B. Hu, B. He, Y. B. Song and G. W. Zhang;2018 26th International Conference on Geoinformatics;20181206;全文 * |
| 基于SDN/NFV的天地一体化网络架构研究;张寒;黄祥岳;孟祥君;赵志峰;聂建宁;;军事通信技术(第02期);全文 * |
| 巨型星座系统的网络运维与资源管控技术;周笛,盛敏,郝琪等;天地一体化信息网络;全文 * |
| 张寒 ; 黄祥岳 ; 孟祥君 ; 赵志峰 ; 聂建宁 ; .基于SDN/NFV的天地一体化网络架构研究.军事通信技术.2017,(第02期),全文. * |
| 新基建下的卫星通信与5G/6G;汪春霆;2020中国卫星应用大会;第20、27页 * |
| 汪春霆.新基建下的卫星通信与5G/6G.2020中国卫星应用大会.2020,第20、27页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113543170A (en) | 2021-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113543170B (en) | Satellite communication system architecture based on space computation and service application processing method | |
| Shi et al. | A cross-domain SDN architecture for multi-layered space-terrestrial integrated networks | |
| US11777592B2 (en) | Intelligent measurement and control communication network system | |
| CN109936619A (en) | A kind of Information Network framework, method and readable storage medium storing program for executing calculated based on mist | |
| CN111132080A (en) | Self-adaptive seamless switching system and method for multi-network converged communication | |
| Wei et al. | Application of edge intelligent computing in satellite Internet of Things | |
| CN107579845A (en) | Spatial information web services architectural framework | |
| CN106685511A (en) | Spatial information network architecture | |
| CN103780475A (en) | Spatial information network isomerism dynamic networking method based on layered autonomous area | |
| CN113347678B (en) | 5G constellation route partition control method | |
| CN106603143B (en) | Space station test platform and controller thereof | |
| CN112423352B (en) | Inter-satellite link control method for multi-channel and rate autonomous switching | |
| CN105281958B (en) | It is covered and inter-satellite link analysis method for the satellite in multilayer satellite network environment | |
| CN107493194B (en) | Method for designing flexible node model of spatial information network | |
| CN108337710A (en) | A kind of method and system based on high multimedia LEO satellite communications | |
| CN114124190B (en) | Spatial segment layered networking method suitable for low-orbit giant constellation | |
| Jin et al. | Research on the Application of LEO Satellite in IOT | |
| CN112367632B (en) | Networked measurement and control system suitable for stratospheric unmanned aerial vehicle and measurement and control method thereof | |
| Harounabadi et al. | Toward Integration of 6G-NTN to Terrestrial Mobile Networks: Research and Standardization Aspects | |
| CN116743581A (en) | Air-space-ground integrated power grid slicing architecture and resource optimization method thereof | |
| CN116633413A (en) | Method for realizing networking cloud of space ground resources based on NFV and SDN technologies | |
| CN114726429A (en) | Non-geosynchronous satellite orbit, core network, networking and using method | |
| CN115278703B (en) | Concealed reconfigurable satellite measurement, operation and control network device and deployment method | |
| CN213817779U (en) | Relay satellite system based on large longitude interval GEO | |
| CN110138439A (en) | Face the communication means and device of vacant lot vehicle dedicated network based on day |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |