Electronic Device Terrestrial Non-Terrestrial Network Switching
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Solution Overview
Problem
Current 5G communication systems face challenges in seamlessly transitioning between terrestrial and non-terrestrial networks, particularly in maintaining data transmission rates and connection stability when switching between base station and satellite connections.
Innovation Solution
An electronic device equipped with a communication circuit and processors that determine the frequency of a terrestrial network based on previous connection history or pre-stored information, allowing it to search for and switch to a terrestrial network even during a non-terrestrial network connection, without incurring separate time delays or frequency allocations, by utilizing specific conditions such as signal quality and location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electronic device performs cellular communication through a satellite (non-terrestrial network), then the coverage area is expanded and communication is available in areas where base station connection is difficult, but the transmission speed and reception speed are lower compared to terrestrial network
Solution Approach 1:
The patent implements dynamic switching between terrestrial and non-terrestrial networks based on real-time conditions. The electronic device dynamically determines whether to use satellite communication or terrestrial network by evaluating connection status, signal quality, and network availability, thereby optimizing the balance between coverage and speed according to changing environmental conditions
2Reliability
If the electronic device attempts to search for terrestrial network continuously, then the connection reliability is improved, but the time delay and search overhead increase during transition between networks
Solution Approach 1:
The patent stores frequency information of terrestrial networks in advance and uses this pre-stored information to guide the search process. When switching from non-terrestrial to terrestrial network, the device references the stored frequency data to quickly identify and select appropriate terrestrial network frequencies, significantly reducing search time while maintaining connection reliability
Solution Approach 2:
The patent implements a feedback mechanism where the electronic device monitors the connection status and signal quality of both terrestrial and non-terrestrial networks. Based on this feedback, the device dynamically adjusts its network selection and switching decisions, optimizing the balance between search thoroughness and time efficiency
3Speed
If the electronic device releases connection with non-terrestrial network to connect to terrestrial network, then the data transmission rate is improved, but the connection stability and data loss risk increase during transition
Solution Approach 1:
The patent performs preliminary assessment of both terrestrial and non-terrestrial network conditions before initiating a switch. The electronic device evaluates signal quality, connection status, and network availability in advance to determine the optimal switching moment, thereby maintaining connection stability while transitioning to higher-speed terrestrial network when conditions are favorable
4Productivity
If the electronic device uses pre-stored frequency information of terrestrial network, then the network search efficiency is improved, but the accuracy and relevance of frequency selection may decrease due to changes in network deployment
Solution Approach 1:
The patent stores frequency information of terrestrial networks in advance for efficient retrieval during search operations. This pre-stored information serves as a starting point that significantly accelerates the network search process by eliminating the need to scan all possible frequencies from scratch
Solution Approach 2:
The patent incorporates feedback mechanisms where the electronic device monitors actual network conditions and adjusts its frequency selection based on real-time signal quality and connection status. This feedback loop ensures that the initially pre-stored frequency information is refined and updated to maintain high selection accuracy despite changes in network deployment over time
Data Source
AI summary
An electronic device includes a communication circuit configured to support cellular communication through a terrestrial network and a non-terrestrial network and at least one communication processor, comprising processing circuitry, wherein at least one communication processor, individually and/or collectively, is configured to: determine, based on a frequency of a terrestrial network having a previous connection history before a connection to the non-terrestrial network and/or frequency information of a pre-stored terrestrial network, a frequency of the terrestrial network to be found, perform a search for the terrestrial network in a section in which data is not received, based on a location of the electronic device, and determine whether to release a connection with the non-terrestrial network and make the connection to the terrestrial network according to whether a specified condition is satisfied based on the terrestrial network being found.