Node Selection via System Information Database for Cellular Devices
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Solution Overview
Problem
Fifth-generation communication systems face challenges in node registration due to the broad frequency band, leading to prolonged search times for suitable nodes, especially when devices support both 4G and 5G communication, resulting in user inconvenience and potential connection to nodes with lower data transfer rates.
Innovation Solution
An electronic device is equipped with a communication processor that receives system information about nodes supporting dual connectivity and adjacent nodes, updates a database, and determines a searching order to efficiently search for a node to register, prioritizing nodes with higher data transfer rates and wider cell coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device searches for nodes across all frequency bands to ensure finding the optimal node with highest data transfer rate, then the reliability of connection quality is improved, but the time required for node search increases significantly
Solution Approach 1:
The electronic device performs preliminary actions by receiving and storing system information from multiple nodes in advance, including data transfer rates and coverage area information. This pre-collected information is stored in a database, allowing the device to quickly reference and select an optimal node without performing exhaustive searches across all frequency bands at the moment of connection, thus reducing node search time while maintaining connection quality.
Solution Approach 2:
The patent segments the node selection process into distinct phases: (1) receiving system information from multiple nodes, (2) storing information in a database, (3) determining searching order based on stored information, and (4) selecting optimal node. This segmentation allows the device to prepare node information in advance and process selection systematically, reducing the time required for actual node search and connection while ensuring optimal connection quality.
2Adaptability or versatility
If the electronic device supports both 4G and 5G communication and searches for nodes according to terminal access priority and node installation characteristics, then the adaptability to different network conditions is improved, but the node search time increases due to broader frequency band coverage
Solution Approach 1:
The electronic device performs preliminary actions by receiving system information from multiple nodes supporting different communication standards (4G and 5G) in advance. The device stores this information including data transfer rates and coverage areas in a database before actual connection is needed. This pre-prepared information allows the device to quickly determine searching order and select optimal nodes across different frequency bands without performing exhaustive searches, thus reducing node search time while maintaining adaptability to various network conditions.
Solution Approach 2:
The patent utilizes parameter changes by receiving and comparing key parameters from different nodes such as data transfer rate and coverage area. The electronic device determines searching order based on these parameters stored in the database, allowing it to adaptively select nodes across 4G and 5G networks based on current needs without manually searching all frequency bands, thereby reducing search time while maintaining network compatibility.
3Productivity
If the electronic device determines searching order based on database information including data transfer rate and coverage area, then the productivity of node selection is improved, but the device complexity increases due to database management requirements
Solution Approach 1:
The electronic device performs preliminary actions by receiving system information from multiple nodes and storing it in a database in advance. This pre-organized information includes data transfer rates and coverage areas, which are essential for determining searching order. By having this information prepared beforehand, the device can quickly determine the optimal searching order without complex real-time analysis, thus improving node selection efficiency while keeping database management relatively simple.
Data Source
AI summary
An electronic device may include at least one communication processor and an application processor. The at least one communication processor is configured to: receive first system information including information on whether at least one node supporting first cellular communication supports DC or second system information including information on a node which is adjacent to the at least one node and supports second cellular communication, from the at least one node via the first cellular communication; update, based on the first or second system information, a database which includes information indicating whether the at least one node supports the DC and information indicating whether the node adjacent to the at least one node supports the second cellular communication; determine, based on the updated database, a searching order of at least one node included in the updated database; and search for a node to be registered, based on the determined searching order.