CPC H04W 28/0864 (2023.05) [H04B 7/088 (2013.01); H04B 7/18547 (2013.01)] | 8 Claims |
1. A hierarchical network operation and resource control method for a giant satellite constellation, comprising:
step 1, constantly acquiring attributes of resource of whole network and reshaping the resource, performing service element extraction and service reshaping on a service that requires wireless resource allocation, and sending the service and the attributes of resource after reshaping to an intelligent resource management module as management decision indicators, by a ground global organization layer controller;
step 2, performing real-time monitoring and management on services, faults and satellites, and reshaping operation and measurement data into service states, satellite states and resource states required by wireless resource management decision, by an operation and measurement control module;
step 3, making, by a wireless resource management sub-module of the intelligent resource management module, global wireless resource management decision based on decision indicators provided by a service reshaping module, a resource reshaping module and a state reshaping module and the service and the attributes of resource after reshaping, wherein the global wireless resource management decision comprise types of allocated resource and required resource quantities of the allocated resource;
step 4, mapping, by a decision matching module, the global wireless resource management decision made by the wireless resource management sub-module of the intelligent resource management module to a corresponding one of local coordination layer controllers;
step 5, caching and sorting as per priority, by a match mapping module of the corresponding one of the local coordination layer controllers, a plurality of global resource management decision; and processing, by a resource slice operation module, the plurality of global resource management decision in order of the priority; wherein for the global wireless resource management decision, the resource slice operation module obtains wireless resource requirement for completing current the service according to information of the global wireless resource management decision, and allocates and generates specific service resource slices for the service; and
step 6, mapping the service resource slices to specific physical devices and physical resource to support an entire process of service, wherein the resource slices are hierarchical characterization of virtual resource;
wherein in step 5, a deployment method of the local coordination layer controllers comprises:
(1) based on an orbital altitude difference κ between a geosynchronous orbit (GSO) or medium earth-orbit (MEO) satellite and a low earth-orbit (LEO) satellite, an orbital altitude κleo of the LEO satellite, a beam coverage angle θ of the GSO or MEO satellite, and average latitude difference ΔLa and longitude difference ΔLo between LEO satellites, solving an equation as follows:
![]() where, a sphere O is a sphere with the center of the Earth as its center and a distance R from any point in an orbital plane of the LEO satellite to the center of the Earth as its radius, α(θ, κleo, κ) is a sphere center angle of the sphere O corresponding to a beam angle of the local coordination layer controller, and a value of α(θ, κleo, κ) is obtained by solving the following equations:
![]() where, x is a maximum linear distance between any one of the local coordination layer controllers and any one LEO satellite in a control domain of the local coordination layer controller;
(2) calculating a number V(θ, κleo, κ) of LEO satellites covered by a rectangular or circular antenna beam of the local coordination layer controller as follows:
![]() where, ΔLa and ΔLo are the average latitude difference and longitude difference between LEO satellites near the equatorial plane, respectively;
(3) calculating a number N of LEO satellites controllable within H hops of single the local coordination layer controller:
![]() where, j is a counting factor, and H is a positive integer; and
(4) based on a number Mleo of satellites in a LEO satellite constellation and the number N of LEO satellites controllable within H hops of single the local coordination layer controller, calculating a number Q of the local coordination layer controllers deployed on GSO or MEO satellites is Q=Mleo/N;
wherein the intelligent resource management module including the wireless resource management sub-module, the operation and measurement control module, the service reshaping module, the resource reshaping module, the state reshaping module, and the decision matching module are integrated into the global organization layer controller; and the match mapping module and the resource slice operation module are integrated into the corresponding local coordination layer controller.
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