Mobile Terminal Network Access via Shared Server PLMN Caching
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Solution Overview
Problem
Mobile communication terminals often experience prolonged delays when accessing a public land mobile network (PLMN) in a visited place, affecting user communication experiences during international roaming.
Innovation Solution
A network access method that involves logging into a shared server using a shared account to acquire and add the visited PLMN's network identification to an EPLMN list, which includes both the home and visited PLMN IDs, allowing the terminal to initiate a network registration process more quickly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile communication terminal performs network searching in a visited place by using a registered public land mobile network (RPLMN), then the terminal can access the network, but the waiting time is prolonged (sometimes needing to wait for tens of minutes)
Solution Approach 1:
The patent applies preliminary action by pre-acquiring and storing the VPLMN network identification in the terminal's local memory before the terminal actually needs to access the visited network. This is achieved by having the terminal obtain the VPLMN ID from the home network operator in advance and cache it locally, so when the terminal arrives at the visited place, the network identification is already ready for immediate use, eliminating the need for time-consuming real-time network search and registration.
2Adaptability or versatility
If the mobile communication terminal searches for networks in real-time when roaming, then the terminal can adapt to the visited place, but the network access process takes a long time (tens of minutes)
Solution Approach 1:
The patent implements preliminary action by pre-obtaining and caching the VPLMN network identification in the terminal's local memory before actual network access is needed. This allows the terminal to immediately use the pre-fetched network information when arriving at the visited place, transforming a real-time search process into a pre-computed operation, thereby significantly improving network access speed while maintaining adaptability.
Solution Approach 2:
The patent applies copying by creating a local copy of the VPLMN network identification in the terminal's memory. Instead of repeatedly querying or searching for the network identification in real-time, the terminal stores a copy of this information locally, allowing for instant retrieval and use. This copying mechanism eliminates the need for time-consuming real-time network discovery processes.
3Ease of operation
If the mobile communication terminal uses traditional network searching methods in visited places, then the terminal can perform basic network access, but the user communication experience is significantly affected due to long waiting times
Solution Approach 1:
The patent resolves this contradiction by applying preliminary action - the terminal pre-acquires and stores the VPLMN network identification in its local memory before the user needs to communicate. This pre-computation of network information eliminates the need for time-consuming real-time network search and registration processes, thereby dramatically reducing waiting time and significantly improving user communication experience during international roaming.
Data Source
AI summary
An embodiment of the present disclosure provides a network access method, including logging in to a shared server via a shared account, if a mobile communication terminal detects that a network identification of a PLMN of a visited place does not exist in a local memory; searching the shared network information in the shared server online via a network and acquiring the network identification of the PLMN of the visited place from the shared network information, after the shared server is logged in to; adding the network identification of the PLMN of the visited place to an EPLMN list by the mobile communication terminal; and accessing a network according to the EPLMN list.