Satellite Terminal Access Management via Beidou Grid Mapping
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Solution Overview
Problem
The existing space-ground integrated information networks face difficulties in managing satellite terminal access due to the mismatch between longitude and latitude information used in satellite terminal positioning and the common data format of the core network, hindering operations such as create, retrieve, update, or delete.
Innovation Solution
A method that converts satellite terminal location information into Beidou grid codes, using a redis database to map these codes to tracking area codes through a data relationship tree, allowing the core network to perform access management efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If longitude and latitude information is used for satellite terminal positioning, then positioning accuracy is improved, but data format compatibility with core network deteriorates
Solution Approach 1:
The patent introduces a coordinate conversion module as an intermediary that transforms longitude and latitude information into local coordinate system data. This mediator enables compatibility between the satellite terminal's positioning system (which uses longitude/latitude) and the core network's data format requirements (which use local coordinates), resolving the format incompatibility while preserving positioning accuracy.
Solution Approach 2:
The patent changes the parameter representation from geographic coordinates (longitude and latitude) to local coordinate system parameters. By transforming the coordinate system and adjusting the data format parameters, the system maintains the precision of location identification while making the data compatible with core network operations such as create, retrieve, update, and delete functions.
2Loss of information
If longitude and latitude information is directly used in core network operations, then positioning information completeness is improved, but system operation efficiency deteriorates
Solution Approach 1:
The patent implements preliminary coordinate conversion by pre-establishing the transformation relationship between longitude/latitude and local coordinate systems. The conversion is performed in advance as part of the positioning process, so that when core network operations need to access location data, the compatible format is already prepared, eliminating the need for real-time conversion during operations and thus improving efficiency.
Solution Approach 2:
The coordinate conversion module serves as an intermediary layer that handles the transformation from longitude/latitude to local coordinates before data is passed to core network operations. This intermediary processing ensures that complete positioning information is maintained while the data presented to the core network is in the efficient, compatible local coordinate format, optimizing operation speed.
3Adaptability or versatility
If longitude and latitude information is used for access management, then location-based management capability is improved, but access management complexity deteriorates
Solution Approach 1:
The patent simplifies access management by changing the location parameter from complex longitude/latitude pairs to simpler local coordinate system representations. This parameter transformation maintains the ability to perform location-based access control and management functions while reducing the computational complexity of comparing and processing location data during access management operations.
Data Source
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AI summary
The present application discloses a satellite terminal access management method in a space-ground integrated information network, a core network, a computer apparatus, and a storage medium. The satellite terminal access management method comprises the steps of: querying a redis database according to a first Beidou grid code corresponding to the location of a satellite terminal; determining a first tracking area code according to the query result; performing access management on the satellite terminal according to the first tracking area code, etc., wherein the redis database stores a mapping relationship between Beidou grid codes and tracking area codes in the form of a data relationship tree. By means of converting location information into tracking area codes applicable to a core network, the core network of the present application can conduct operations such as adding, deleting, modifying and checking according to a found first tracking area code, so as to further carry out the access management of a satellite terminal, avoid generating overly long links, and simplify the access matching process. The present application is widely used in the technical field of mobile communication.