Multi-Satellite Access Coordination for Higher Transmission Efficiency
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Solution Overview
Problem
Current satellite communication systems face low data transmission efficiency due to the limitation of establishing communication links with only a single satellite, despite the potential for multiple satellite terminals to enhance service provision.
Innovation Solution
An access method for multi-satellite cooperative communication that enables a satellite terminal to determine and establish connections with multiple satellite base stations, allocate unique identifiers, and synchronize context information across these stations with a core network to facilitate efficient service provision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a satellite terminal establishes a communication link with only a single satellite, then the system complexity is low, but the data transmission efficiency is low
Solution Approach 1:
The patent merges multiple satellite base stations into a cooperative communication system where they work together to serve a single satellite terminal. The terminal simultaneously establishes communication links with multiple satellites, combining their resources to improve data transmission efficiency while managing system complexity through coordinated resource allocation and information sharing mechanisms.
2Productivity
If a satellite terminal utilizes multiple satellites simultaneously, then the data transmission efficiency is improved, but the access and coordination complexity increases
Solution Approach 1:
The patent introduces intermediary mechanisms including a master satellite base station that coordinates with secondary satellite base stations, and a core network that manages terminal registration and context information. These intermediaries handle the complexity of multi-satellite access by centralizing coordination functions, allowing the terminal to utilize multiple satellites simultaneously without directly managing the complex interactions between them.
3Reliability
If multiple satellite base stations serve a single terminal, then the communication reliability is improved, but the information synchronization complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where satellite base stations exchange information about terminal context, communication status, and resource allocation. The master and secondary base stations maintain synchronized information through feedback loops, and the core network receives registration information from base stations to maintain an updated view of the system state, enabling reliable multi-satellite service while managing synchronization complexity through structured information exchange.
Data Source
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AI summary
An access method for multi-satellite cooperative communication, and a satellite communication system, comprises: a satellite terminal determining a primary satellite base station and a secondary satellite base station from among several satellite base stations, and sending, to the primary satellite base station and the secondary satellite base station, first information which comprises respective identity identification information of the primary satellite base station and the secondary satellite base station; the primary satellite base station and the secondary satellite base station respectively determining the identity of each other, and establishing a communication connection; the primary satellite base station and the secondary satellite base station respectively allocating a first terminal identifier and a second terminal identifier to the satellite terminal; the primary satellite base station sending registration information to a core network, wherein the registration information comprises the first terminal identifier, the second terminal identifier and the first information; and the core network determining the primary satellite base station, the secondary satellite base station and the satellite terminal according to the registration information, and sending context information of the satellite terminal to the primary satellite base station, and the secondary satellite base station synchronizing the context information. In the present application, a plurality of satellite base stations can serve the satellite terminal, thereby facilitating an improvement in the communication transmission efficiency.