Mobile Terminal Network Search Optimization via Frequency Point Mapping
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Solution Overview
Problem
Current network search processes in mobile communication terminals are slow when transitioning from weak-signal or no-signal regions to signal-covered areas, leading to poor user experience due to repeated system and band scans until a Public Land Mobile Network (PLMN) is found.
Innovation Solution
A method where a terminal scans frequency points, adds them to a pre-set list, and searches these lists in subsequent PLMN registration processes, with successful registrations updating a historical list and mapping geographic positions to frequency points, and replacing lists if registration fails, to expedite network access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal performs system scan and band scan repeatedly until a PLMN is found, then the terminal can ensure network accessibility, but the network search process becomes slow
Solution Approach 1:
The patent applies preliminary action by pre-storing frequency points in a database before the terminal needs to perform network search. When the terminal enters a signal-covered region, it can directly query the pre-stored frequency points instead of performing repeated system scans and band scans, significantly reducing network search time while ensuring reliable network accessibility
Solution Approach 2:
The patent applies local quality by differentiating the search strategy based on local conditions - using pre-stored frequency points for quick access in known regions, and falling back to full system/band scans only when necessary. This localized optimization ensures reliability where needed while improving speed in favorable conditions
2Reliability
If the terminal scans all frequency points to perform network search, then the terminal can find available networks, but the search process becomes time-consuming
Solution Approach 1:
The patent extracts only the necessary frequency points from the complete frequency spectrum and stores them in a database for quick access. Instead of scanning all possible frequency points, the terminal queries the extracted and pre-stored frequency points, dramatically reducing network search time while maintaining the ability to find available networks
Solution Approach 2:
The patent performs preliminary action by pre-processing and storing frequency point information in a database before it is needed for network search. This advance preparation allows the terminal to quickly query and access frequency points without performing time-consuming scans during the actual network search process
Data Source
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AI summary
Disclosed are a network access method, a terminal and a non-transitory processor readable medium. According to the method, a terminal scans frequency points to perform network search. The scanned frequency points are added to a first pre-set list. If the terminal fails in registration under a current Public Land Mobile Network (PLMN), the frequency points stored in the first pre-set list are searched in a next PLMN registration process so as to perform network registration.