CN112532298A - Wireless resource scheduling method and architecture system based on low-earth-orbit constellation satellite communication - Google Patents
Wireless resource scheduling method and architecture system based on low-earth-orbit constellation satellite communication Download PDFInfo
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Abstract
The invention provides a wireless resource scheduling method and an architecture system based on low earth orbit constellation satellite communication. The wireless resource scheduling center plans the service area and resources of the satellite according to data such as global spectrum, resources and services, the satellite performs resource scheduling facing terminal users according to the planned data, and the user service scheduling module handles priority adaptation of different service data, so that network access of a low-earth-orbit constellation satellite communication system of multi-service data is realized. According to the invention, resource scheduling disposal is decoupled through a layered low-earth-orbit constellation satellite communication system resource system architecture, and wireless resource scheduling of the low-earth-orbit constellation satellite communication system is optimized through processing and analyzing of related data.
Description
Technical Field
The invention relates to a wireless resource scheduling method and an architecture system based on low earth orbit constellation satellite communication, in particular to the field of wireless communication networks.
Background
The low-orbit constellation satellite communication system is composed of dozens of to tens of thousands of low-orbit satellites at the height of 200-2000 km, and the satellites form a satellite constellation to provide services such as high-speed communication, internet access and the like for various users of a foundation, a sea foundation, a space foundation and a space foundation.
The radio resource scheduling is one of the core functions of an operation control system in a radio communication system, and is a key for reasonable allocation and utilization of radio communication system resources. In the prior art, the allocation of the wireless resource scheduling method is relatively fixed, so that the resource allocation is not flexible, and the change along with the change of users and services is not easy to realize. Meanwhile, the low earth orbit satellite moves continuously relative to the ground, the coverage area, users and services of the low earth orbit satellite also change continuously, and the fixed resource allocation mode cannot adapt to the movement and the change of the low earth orbit constellation satellite communication system.
Disclosure of Invention
The purpose of the invention is as follows: an object is to provide a method for scheduling radio resources based on low earth orbit constellation satellite communication, so as to solve the above problems in the prior art. A further object is to propose an architectural system for implementing the above method.
The technical scheme is as follows: a wireless resource scheduling method based on low earth orbit constellation satellite communication comprises the following steps:
the method comprises the following steps: constructing a wireless resource scheduling center for performing resource scheduling facing a satellite;
step two: taking an infinite resource scheduling center as a constraint and performing resource scheduling facing a user;
step three: carrying out data scheduling facing to the terminal service requirement;
step four: and scheduling the wireless resources according to the data processing results of different layers.
In a further embodiment, the first step is further: the method comprises the steps of integrating situation information of the whole network, global telecommunication policy information and available resource information, optimizing service area division and resource scheduling according to historical data, scheduling a constellation satellite service area and available resources in real time, configuring a distribution strategy of user resources and guiding a satellite to distribute the user resources.
In a further embodiment, the second step is further: configuring constraints by using the wireless resource scheduling center established in the step one, synthesizing the requirements of different terminal users, considering terminal capacity factors, scheduling satellite beams, time slots, frequencies and powers, and providing access service for user application; and meanwhile, downlink data are scheduled according to the priority of the user data, so that the user data distribution is realized.
In a further embodiment, the third step is further: according to the service requirements, the satellite is faced to apply for wireless resources, terminal services are distinguished, priority management, link management and data management are carried out according to the service QoS requirements, service data flow data are formed, and multi-service data multiplexing is completed.
In a further embodiment, the fourth step is further: and integrating the data processed in the first step to the third step, realizing function layered focusing from different layers, and scheduling the wireless resources so as to realize the optimal allocation of the resources.
A system for scheduling radio resources based on low earth orbit constellation satellite communication, the method comprising:
a wireless resource scheduling center module for performing resource scheduling facing the satellite;
the satellite resource scheduling module is used for carrying out resource allocation for users;
and the user service scheduling module is used for scheduling the terminal service data.
In a further embodiment, the radio resource scheduling center module further includes an interference avoidance calculation module, a feeder link scheduling module, an interference management module, a spectrum resource management module, an polar region load management module, and a satellite resource scheduling and service region planning module.
In a further embodiment, the interference avoidance calculation module is used for optimizing two aspects of satellite user beam pointing prohibition and feeder link interference avoidance planning, so as to avoid interference on the GEO satellite.
In a further embodiment, the feeder link scheduling module is configured to instruct the satellite and the ground gateway station to complete feeder link scheduling, and optimize feeder link connection according to the GEO interference avoidance result calculated by the interference avoidance calculation module;
in a further embodiment, the interference management module utilizes system sensing data to construct a global spectrum resource interference situation, mine an interference rule and optimize resource planning.
In a further embodiment, the spectrum resource management module is configured to manage scheduling of available resources by the satellite according to available spectrum resources in different regions, so as to implement corresponding dynamic change of the available spectrum resources of the satellite along with change of location.
In a further embodiment, the polar region load management module plans the working state of the space load according to the polar region service requirement, and realizes regular whole-network space load closing and starting operation and ordered service for polar region users.
In a further embodiment, the satellite resource scheduling and service area planning module realizes dynamic planning of global spectrum resources according to data acquired by the interference avoidance calculation module, the interference management module and the spectrum resource management module, generates plans of service areas and frequency use of each satellite, configures space loads by adopting an SNMP protocol, realizes scheduling management of global resources, optimizes service area resource allocation of a multi-satellite overlapping area, schedules abnormal access of users introduced by ground shielding, and meets the requirement of system normalized operation.
In a further embodiment, the satellite resource scheduling module further performs corresponding data processing according to the acquired configuration constraint information of the scheduling center, user requirement information and terminal capability information and according to the characteristics of beam hopping service, and further divides the scheduling center interaction module, the user clustering module, the beam hopping pattern calculation module and the user parameter management module.
In a further embodiment, the dispatch center interaction module is configured to interact with the radio resource dispatch center module, so as to adjust the service area and the radio resource configuration.
In a further embodiment, the user clustering module is configured to perform user clustering according to the size, shape, and coverage of a beam, so as to implement beam service user grouping.
In a further embodiment, the beam hopping pattern calculation module is configured to design a beam hopping pattern according to different resource application modes and service data transmission requirements of users.
In a further embodiment, the user parameter management module is configured to manage user parameter data and optimize user link parameters.
In a further embodiment, the user service scheduling module is further configured to apply for resources from a satellite and a system and use the resources according to an arriving service type, a service capacity requirement, and the like; and further dividing a resource application module, a priority management module, a link management module and a data management module.
In a further embodiment, the resource application module further evaluates the required bandwidth for the user according to the required service requirement.
In a further embodiment, the priority management module further manages the service priority of the service according to the service requirements of the user and the potential requirements of different service types on the evaluation parameters.
In a further embodiment, the link management module further manages link direction and transmission parameters for different scene requirements; the link direction is further to change the emergent azimuth angle and elevation angle of the antenna according to different scene requirements, so that the link direction is adjusted; the transmission parameters further include adjusting link parameters, changing modulation coding sets, and increasing or decreasing information rates according to different scene requirements.
In a further embodiment, the data management module further utilizes a database system and an encryption system to collect, encrypt, store, process and apply user data, fully plays the role of data, realizes effective management and organization of the user data, simultaneously ensures the independence, reliability, safety, authenticity and integrity of the data, reduces data redundancy, and further improves the data sharing degree and management efficiency.
Has the advantages that: the invention provides a wireless resource scheduling method and an architecture system based on low-earth-orbit constellation satellite communication, which quantize users and services by utilizing the concept of a position area, quantize the users and the services on the basis of the position area on the basis of spectrum sensing and service sensing, schedule global spectrum resources and satellite service areas under the condition of considering the factors of the satellite resources, the visible time of the satellite and the position area, interference avoidance and the like, adjust the satellite spectrum and the service areas along with the movement of the satellite and the change of the distribution of the satellite resources and the services on the basis of the global spectrum situation sensing, solve the problem of limited single-satellite service capacity, realize multi-satellite cooperative enhanced service, and further realize flexible scheduling and efficient utilization of wireless resources.
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FIG. 1 is a system diagram of the architecture of the present invention.
Fig. 2 is a functional architecture diagram of a radio resource scheduling center according to the present invention.
FIG. 3 is a schematic flow chart of the method of the present invention.
Fig. 4 is a loan tiling perception architecture diagram based on two channels in the invention.
Detailed Description
The invention realizes the purposes of flexible scheduling and high-efficiency utilization of wireless resources by a wireless resource scheduling method and an architecture system based on low-earth-orbit constellation satellite communication. The present invention will be further described in detail with reference to the following examples and accompanying drawings.
The applicant considers that in the existing satellite communication system, resource scheduling adopts a fixed allocation mode, an on-demand allocation mode or a random allocation mode, the resource allocation modes can not achieve an optimized result in the aspect of realizing the matching of services and resources, the resource allocation result can not change along with the change of users and services, and the high dynamic performance and the non-uniformity of service distribution of satellites of the low-earth constellation satellite communication system are difficult to adapt. Therefore, the flexibility and the utilization rate of resource allocation are not high, and the effective operation of the low-earth constellation satellite communication system is influenced.
In the application, a wireless resource scheduling method and an architecture system based on low earth orbit constellation satellite communication are provided, wherein the wireless resource scheduling method based on low earth orbit constellation satellite communication is included, firstly, a wireless resource scheduling center is established according to acquired data information, and data processed by the wireless resource scheduling center is used as source data of subsequent steps; secondly, the user-oriented wireless resource scheduling center is used as a constraint to perform resource scheduling; from the second time, starting from the user side, performing resource scheduling analysis on the service requirements of the user; and finally, the scheduling analysis of the resources in different layers is integrated to schedule the wireless resources.
The method comprises the following steps:
the method comprises the following steps: constructing a wireless resource scheduling center for performing resource scheduling facing a satellite;
step two: taking a wireless resource scheduling center as a constraint and carrying out resource scheduling facing to a user;
step three: user service scheduling is carried out facing to terminal service requirements;
step four: and scheduling the wireless resources according to the data processing results of different layers.
The first step is further to integrate the situation information of the whole network, the information of global telecommunication policies and the information of available resources, optimize the division of service areas and the scheduling of resources according to historical data, schedule the service areas and the available resources of the constellation satellites in real time, configure the allocation strategy of user resources and guide the satellites to allocate the user resources. In the process of implementing resource scheduling, the step of data processing further comprises:
step 1.1, GEO interference avoidance calculation.
Step 1.2, optimizing the connection of a feeder link according to an interference avoidance calculation result; specifically, a feeder link scheduling plan is generated, a space feeder link load beam pointing and use plan and a ground gateway station beam pointing plan are generated and distributed to corresponding control units, and thus feeder link scheduling is implemented.
Step 1.3, global interference cognition and management are supported by combining system perception data; the implementation mode specifically comprises the steps of utilizing system sensing data, constructing the interference situation of global spectrum resources, excavating the interference rule and optimizing resource planning. Meanwhile, multi-satellite and multi-terminal sensing data are comprehensively utilized, interference cognition is achieved, quasi-real-time scheduling of frequency spectrum resources is optimized, and service quality of the system is improved.
And step 1.4, carrying out global spectrum resource management according to the spectrum sensing data and the use policies of wireless resources of various regions, and planning the available resources of each space load. Wherein the spectrum resource management further comprises:
step 1.4.1, obtaining frequency spectrum data; as shown in fig. 4, the step further adopts a dual-channel joint mode spectrum data acquisition technology based on segmented scanning to acquire spectrum data; the scanning channel works in a scanning state, analyzes the wide bandwidth of a signal, and is used for quickly acquiring the frequency spectrum outline of the signal, classifying frequency spectrum data and identifying strong interference; the resident channel works in a resident mode, the acquired abnormal frequency spectrum outline is subjected to fine analysis, abnormal signals are identified, and accurate frequency spectrum data of the signals are acquired.
Step 1.4.2, extracting frequency spectrum characteristics; the step further adopts a broadband self-adaptive rapid separation frequency sweep algorithm to accurately acquire signal spectrum characteristics and optimize a dual-channel spectrum data acquisition working mode; firstly, a scanning channel is adopted, a bandwidth with a larger resolution ratio is adopted for rough scanning, and signal characteristics on a transponder are obtained; secondly, according to the overall outline characteristic of the signal characteristic on the transponder, dividing the whole frequency band to be scanned into a plurality of relatively independent groups; thirdly, for each group, adopting a resident channel to obtain fine frequency spectrum data, considering whether the fine frequency spectrum data is further divided into smaller groups according to the frequency spectrum of the fine frequency spectrum data, and adjusting the frequency resolution of the resident channel and analyzing again when the group is judged to be required to be further divided; finally each signal is analyzed for clarity.
Step 1.4.3, calculating the total amount of the spectrum resource demand;
step 1.4.4, establishing a pricing principle;
step 1.4.5, according to the total demand of the frequency spectrum resources and a pricing principle, carrying out game and auction on the use of the resources;
and step 1.4.6, obtaining the optimal resource demand strategy and price strategy through iteration.
Step 1.5, planning the working state of the space load according to the service requirement of the polar region, realizing regular whole-network space load turn-on and turn-off operation, eliminating the influence of the space single event effect on the load, and realizing ordered service to polar region users.
Step 1.6, based on global service requirements, according to the interference avoidance data in the step 1.1, the interference management in the step 1.3 and the global spectrum resource management data in the step 1.4, dynamic planning of global spectrum resources is realized, plans of service areas and frequency use of each satellite are generated, SNMP (simple network management protocol) is adopted to configure to each space load, scheduling management of the global resources is realized, service area resource allocation of a multi-satellite overlapping area is optimized, abnormal access of users introduced by ground shielding is scheduled, and the requirement of system normalized operation is met. Meanwhile, for hot spots needing satellite emergency service such as earthquake relief work and the like, multi-satellite resource cooperative service scheduling is supported, the regional emergency service requirement is met, and the capacity of the system for service on demand is maximized.
Step two, configuring constraints by a wireless resource scheduling center, synthesizing the requirements of different terminal users, scheduling satellite beams, time slots, frequencies and powers by considering factors such as terminal capacity and the like, and providing access service for user application; and meanwhile, downlink data are scheduled according to the priority of the user data, so that the user data distribution is realized.
And step three, further carrying out wireless resource application facing the satellite according to the service requirements, simultaneously distinguishing services such as terminal voice, video, data and the like, carrying out priority management, link management and data management according to the service QoS requirements, forming service data stream data, and completing multi-service data multiplexing.
And step four, the data processed in the step are further integrated, function layered focusing is realized from different layers, and wireless resources are scheduled, so that the optimal allocation of the resources is realized.
A wireless resource scheduling architecture system based on low earth orbit constellation satellite communication is used for realizing the method, and is characterized by comprising the following steps:
a wireless resource scheduling center module for performing resource scheduling facing the satellite;
the satellite resource scheduling module is used for carrying out resource allocation for users;
and the user service scheduling module is used for scheduling the terminal service data.
The wireless resource scheduling center module for performing resource scheduling facing a satellite is positioned in the operation control center, performs corresponding data processing according to the acquired global situation information, global telecommunication policy, available resource information and historical data information, and further divides an interference avoidance calculation module, a feeder link scheduling module, an interference management module, a frequency spectrum resource management module, a polar region load management module and a satellite resource scheduling and service region planning module.
In the low and medium latitude band, the common view interference exists between the GEO and the LEO, so the wireless resource scheduling center module adopts the interference avoidance calculation module to optimize the satellite user beam pointing prohibition and the feed link interference avoidance planning, and the interference to the GEO satellite is avoided.
The feeder link scheduling module is used for guiding the satellite and the ground gateway station to complete feeder link scheduling, optimizing feeder link connection according to the GEO interference avoidance result calculated by the interference avoidance calculation module, generating a feeder link scheduling plan, generating a space feeder link load beam pointing and using plan and a ground gateway station beam pointing plan, distributing the space feeder link load beam pointing and using plan and the ground gateway station beam pointing plan to corresponding control units, and performing real-time feeder link scheduling.
With the application of the 5G extended frequency band, the influence on different satellites can produce different effects while the interference is caused to the ground base station. Therefore, an interference management module in the wireless resource scheduling center module is established to solve the problem of interference in resource scheduling of the low-earth constellation satellite communication system caused by complex space electromagnetic environment. Meanwhile, the interference management module utilizes system sensing data to construct a global spectrum resource interference situation, excavate an interference rule and optimize resource planning. And the multi-satellite and multi-terminal sensing data are comprehensively utilized, interference cognition is realized, the quasi-real-time scheduling of frequency spectrum resources is optimized, and the service quality of the system is improved.
The low earth constellation satellite communication system provides services for the world, but the global spectrum resources are complex, the available spectrum resources in different regions are different, and the spectrum usage rules and requirements are also different. The spectrum resource management module is used for managing the scheduling of the available resources by the satellite according to the available spectrum resources in different areas, so that the corresponding dynamic change of the available spectrum resources of the satellite along with the change of the position is realized, and the scheduling of the real-time available resources of the satellite and the adjustment of the load working mode are supported. For example, the ITU protects GEO satellite frequency resources, and the resources are scheduled in a targeted manner in a medium latitude region with insufficient coverage capability.
The polar region load management module has polar region satellite load management capability and is used for avoiding unordered service of users under multiple coverage. Multiple interference introduced by polar region constellation satellite convergence influences the use of different satellite resources, and a polar region load management module plans the working state of space load according to the polar region service requirement, so that regular whole-network space load turn-on and turn-off operation is realized, the influence of space single event effect on the load is eliminated, and the ordered service to polar region users is further realized.
The satellite resource scheduling and service area planning module is used for realizing space load service capacity scheduling, further based on global service requirements, dynamic planning of global spectrum resources is realized according to data acquired by the interference avoidance calculation module, the interference management module and the spectrum resource management module, planning and frequency use planning of each satellite service area are generated, SNMP (simple network management protocol) is adopted to configure the data to each space load, scheduling management of the global resources is realized, service area resource allocation of a multi-satellite overlapping area is optimized, abnormal access of users introduced by ground shielding is scheduled, and the requirement of system normalized operation is met. Meanwhile, for hot spots needing satellite emergency service such as earthquake relief work and the like, multi-satellite resource cooperative service scheduling is supported, the regional emergency service requirement is met, and the capacity of the system for service on demand is maximized.
According to the service area and the wireless resource allocation of the wireless resource scheduling center module, the satellite performs scheduling of frequency, power, time and wave beams on the basis of comprehensively considering user requirements and on the basis of taking fairness service as a principle, and the requirement of multi-service data transmission of different terminal users is met.
And the satellite resource scheduling module for carrying out resource allocation for the user carries out corresponding data processing according to the acquired configuration constraint information of the scheduling center, the user demand information and the terminal capacity information and the characteristics of the beam hopping service, and further divides the satellite resource scheduling module into a scheduling center interaction module, a user clustering module, a beam hopping pattern calculation module and a user parameter management module.
And the satellite resource scheduling module is used for interacting with the wireless resource scheduling center module so as to adjust the service area and the wireless resource configuration. Because the wireless resource scheduling center module is the core of wireless resource scheduling of the low earth orbit constellation satellite communication system, the interaction module with the scheduling center in the satellite resource scheduling module allocates the available resources and service areas of the satellite according to the service area and resource planning allocated by the wireless resource scheduling center module, and performs resource scheduling of users in the current service area on the basis of the allocation.
And a user clustering module in the satellite resource scheduling module clusters users according to the size, shape and coverage condition of the wave beam, so as to realize the grouping of the wave beam service users. And further combining the service capacity of each wave beam planned by the wireless resource scheduling center module, comprehensively considering the wave beam hopping period and the capacity request of the terminal user in a coverage area, and clustering the users, wherein the users in the clusters share the same wave beam resource, the resource among the clusters is distributed and flows according to the service requirement, and the number of the users in the clusters in different resource scheduling periods can be adjusted according to the change of the requirement.
And the beam hopping pattern calculation module in the satellite resource scheduling module is used for optimizing the forward and reverse link beam hopping pattern. Firstly, according to the principles of fairness of service, maximization of system capacity and the like, suppressing mutual interference among multiple beams; secondly, designing a hopping beam pattern according to different resource application modes and service data transmission requirements of users, wherein the hopping beam pattern design comprises forward link hopping beam pattern design, reverse link hopping beam scheduling and user access time slot allocation; and finally, optimizing according to the data state of the forward link of the user.
A user parameter management module in the satellite resource scheduling module combines the terminal type and the link characteristics, performs link parameter scheduling for users, optimizes transmission parameters of each terminal link, including power, frequency and adopted MODCOD set, adapts to the change of a transmission link through interactive test data perception, and optimizes the link capacity of the users.
The user service scheduling module is used for scheduling terminal service data and is used for realizing the purposes of applying resources to satellites and systems and using resources according to the arriving service types, service capacity requirements and the like. And further dividing a resource application module, a priority management module, a link management module and a data management module.
The resource application module in the user service scheduling module further evaluates the required bandwidth for the user according to the type of the arriving service, the flow required by the service, the QoS requirement and the like.
The priority management module in the user service scheduling module is used for managing service priority of the service according to service requirements of the user and potential requirements of different service types on time delay, bit error rate and the like. The priority is divided into various schemes, the preferred situation is related to the user type, the service type and the service QoS requirement, namely the more important user is, the higher the priority is; the more important the service is, the higher the priority is; the higher the requirements on delay and error rate, the higher the priority.
And a link management module in the user service scheduling module is used for managing link pointing and transmission parameters aiming at satellites, user motion, rainfall and the like. The link pointing further changes the emergent azimuth angle and the elevation angle of the antenna according to the conditions of satellite movement, user movement, inter-satellite switching and the like, so that the link pointing is adjusted; the transmission parameters are further that according to the rainfall condition, link parameters are adjusted, a modulation code set is changed, the information rate is increased or decreased, when the rainfall is severe, the direction of the link is changed by adjusting the emergent direction of the antenna, and switching is performed to other satellites.
The data management module in the user service scheduling module utilizes a database system, an encryption system and the like to collect, encrypt, store, process and apply user data, fully plays the role of the data, realizes effective management and organization of the user data, simultaneously ensures the independence, reliability, safety, authenticity and integrity of the data, reduces data redundancy, and further improves the data sharing degree and the management efficiency.
The low-orbit constellation satellite communication system has the characteristics of high satellite dynamic, uneven distribution of users and services, small beam coverage range and continuous change along with the movement of the satellite. Based on the above situation, the conventional resource allocation architecture and method are not adaptable to the resource and service change of the low-earth constellation satellite communication system. The invention provides a wireless resource scheduling method and an architecture system based on low-earth-orbit constellation satellite communication aiming at the system characteristics of a low-earth-orbit constellation satellite communication system and on the basis of comprehensively analyzing various factors such as the motion of a low-earth-orbit satellite, the change of resources, the distribution of services and the like, and the resource allocation is decomposed into three layers of a wireless resource scheduling center, a satellite and a user terminal. The service area and the spectrum resources of the whole system are scheduled and divided by a wireless resource scheduling center, the resources such as wave beams, time slots, frequencies, bandwidths, power and the like of the satellite are scheduled by the satellite, and the resources such as the bandwidth, the power and the like of the user are scheduled aiming at the user. Therefore, a multilayer efficient resource allocation system is formed, and the purposes of meeting global optimization of global resource allocation and meeting the requirements of users on real-time performance and reliability of resource use are achieved.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A wireless resource scheduling method based on low earth orbit constellation satellite communication is characterized by comprising the following steps:
the method comprises the following steps: constructing a wireless resource scheduling center for performing resource scheduling facing a satellite;
step two: taking an infinite resource scheduling center as a constraint and performing resource scheduling facing a user;
step three: carrying out data scheduling facing to the terminal service requirement;
step four: and scheduling the wireless resources according to the data processing results of different layers.
2. The method according to claim 1, wherein the step one further comprises:
the method comprises the steps of integrating situation information of the whole network, global telecommunication policy information, available resource information and historical data, optimizing service area division and resource scheduling, scheduling a constellation satellite service area and available resources in real time, configuring a distribution strategy of user resources and guiding a satellite to distribute the user resources.
3. The method according to claim 1, wherein the second step further comprises:
configuring constraints by using the wireless resource scheduling center established in the step one, synthesizing the requirements of different terminal users, considering terminal capacity factors, scheduling satellite beams, time slots, frequencies and powers, and providing access service for user application; and meanwhile, downlink data are scheduled according to the priority of the user data, so that the user data distribution is realized.
4. The method according to claim 1, wherein the third step is further:
according to the service requirements, the satellite is faced to apply for wireless resources, terminal services are distinguished, priority management, link management and data management are carried out according to the service QoS requirements, service data flow data are formed, and multi-service data multiplexing is completed.
5. The method according to claim 1, wherein the step four further comprises:
and integrating the data processed in the first step to the third step, realizing function layered focusing from different layers, and scheduling the wireless resources so as to realize the optimal allocation of the resources.
6. A wireless resource scheduling architecture system based on low earth orbit constellation satellite communication, which is used for realizing the method of any one of claims 1-5, and is characterized by comprising:
a wireless resource scheduling center module for performing resource scheduling facing the satellite;
the satellite resource scheduling module is used for carrying out resource allocation for users;
and the user service scheduling module is used for scheduling the terminal service data.
7. The system of claim 6, wherein the radio resource scheduling center module further comprises an interference avoidance calculation module, a feeder link scheduling module, an interference management module, a spectrum resource management module, a polar region load management module, a satellite resource scheduling and service region planning module;
the interference avoidance calculation module is used for optimizing two aspects of satellite user beam pointing prohibition and feed link interference avoidance planning, and avoiding interference on the GEO satellite;
the feed link scheduling module is used for guiding the satellite and the ground gateway station to complete feed link scheduling, and optimizing feed link connection according to the GEO interference avoidance result calculated by the interference avoidance calculation module;
the interference management module utilizes system sensing data to construct a global spectrum resource interference situation, excavate an interference rule and optimize resource planning;
the frequency spectrum resource management module is used for managing the scheduling of the available resources by the satellite according to the available frequency spectrum resources in different areas, so that the corresponding dynamic change of the available frequency spectrum resources of the satellite along with the change of the position is realized;
the polar region load management module plans the working state of the space load according to the polar region service requirement, and realizes regular whole-network space load closing and starting operation and ordered service for polar region users;
the satellite resource scheduling and service area planning module realizes dynamic planning of global spectrum resources according to data acquired by the interference avoidance calculation module, the interference management module and the spectrum resource management module, generates planning and frequency use planning of each satellite service area, and configures each space load by adopting an SNMP (simple network management protocol) protocol, so that scheduling management of global resources is realized, resource allocation of service areas in a multi-satellite overlapping area is optimized, abnormal access of users introduced by ground shielding is scheduled, and the requirement of system normalized operation is met.
8. The system according to claim 6, wherein the satellite resource scheduling module further performs corresponding data processing according to the acquired scheduling center configuration constraint information, user requirement information, and terminal capability information and according to the characteristics of beam hopping service, and further divides the scheduling center interaction module, the user clustering module, the beam hopping pattern calculation module, and the user parameter management module;
the scheduling center interaction module is used for interacting with the wireless resource scheduling center module so as to adjust the service area and the wireless resource configuration;
the user clustering module is used for clustering users according to the size, shape and coverage condition of the wave beam to realize the grouping of the wave beam service users;
the hopping beam pattern calculation module is used for designing hopping beam patterns according to different resource application modes and service data transmission requirements of users;
the user parameter management module is used for managing user parameter data and optimizing user link parameters.
9. The system according to claim 6, wherein the user service scheduling module is further configured to apply for and use resources from the satellite and the system for the arriving service type and service capacity requirement; further dividing a resource application module, a priority management module, a link management module and a data management module;
the resource application module further evaluates the required bandwidth for the user according to the required service requirement;
the priority management module is further used for managing the service priority of the service according to the service requirements of the user and the potential requirements of different service types on the aspect of parameter evaluation;
the link management module is further used for managing link pointing and transmission parameters according to different scene requirements; the link direction is further to change the emergent azimuth angle and elevation angle of the antenna according to different scene requirements, so that the link direction is adjusted; the transmission parameters further include adjusting link parameters, changing modulation coding sets, and increasing or decreasing information rates according to different scene requirements.
10. The system according to claim 9, wherein the data management module further collects, encrypts, stores, processes and applies user data using a database system and an encryption system, so as to fully play a role of data, achieve effective management and organization of user data, and simultaneously ensure independence, reliability, security, authenticity and integrity of data, reduce data redundancy, and further improve data sharing degree and management efficiency.
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