6G Ubiquitous Access Network With SDN Satellite-Terrestrial Switching
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Solution Overview
Problem
Existing radio networks such as LTE and 5G are independent from satellite networks, lacking communicative coupling, which hinders the provision of universal coverage and high bandwidth necessary for advanced applications like connected infrastructure and ultra-high-fidelity virtual reality.
Innovation Solution
An integrated network framework combining terrestrial wireless networks with satellite systems, utilizing a software-defined networking (SDN) controller to manage radio resources dynamically, enabling seamless switching between terrestrial and satellite networks based on conditions and application requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If terrestrial wireless networks (LTE, 5G) and satellite networks operate independently, then each network can be optimized separately, but universal coverage and high bandwidth for advanced applications cannot be achieved
Solution Approach 1:
The patent merges terrestrial wireless networks (LTE, 5G) and satellite networks into a unified integrated network architecture. The network controller coordinates between terrestrial base stations and satellite terminals to enable seamless switching and resource sharing, achieving ubiquitous coverage while maintaining high bandwidth for advanced applications like VR and connected infrastructure.
Solution Approach 2:
The integrated network framework enables the system to serve multiple functions simultaneously: providing both terrestrial and satellite access, supporting diverse applications from standard communications to high-bandwidth services, and offering flexible switching between network types based on user location and service requirements.
2Reliability
If an integrated network combining terrestrial and satellite systems is implemented, then fully connected broadband global coverage is achieved, but network control and resource management complexity increases
Solution Approach 1:
The network controller continuously monitors network conditions, user location, and service requirements, using this feedback to dynamically adjust resource allocation and switching decisions between terrestrial and satellite networks, optimizing both coverage reliability and control efficiency.
Solution Approach 2:
The system implements dynamic resource management where the network controller can reallocate spectrum resources, adjust transmission parameters, and switch users between network types in real-time based on changing conditions, rather than using static network configurations.
Data Source
AI summary
A framework for a 6th generation (6G) ubiquitous wireless communications network is provided. The framework includes obtaining first information associated with a first condition of a terrestrial radio network from a terrestrial controller that collects the first information from the terrestrial radio networks; determining second information associated with a resource of a satellite network, where a defined application is alternatively executable at the mobile device via any of a group of networks, the group comprising the satellite network and the terrestrial radio networks, and determining whether to re-assign the defined application from the terrestrial radio network to the satellite network based on a result of evaluating at least the first condition.