Mobile Terminal Network Access via BLE EPLMN Lists
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Solution Overview
Problem
Mobile communication terminals take an excessively long time to connect to a Public Land Mobile Network (PLMN) when a new user identification card is inserted, significantly impacting user communication experience.
Innovation Solution
A method and mobile communication terminal that determine the location using GPS or other means, scan a Bluetooth Low Energy (BLE) protocol broadcast channel for an equivalent PLMN list, and connect to the network based on this list if the PLMN identity is found, thereby reducing connection time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal performs a full network search to find the PLMN, then the network connection reliability is ensured, but the connection time becomes excessively long (10-20 minutes)
Solution Approach 1:
The patent applies preliminary action by having other terminals in the vicinity perform network searches and share their results via BLE broadcasting. When a terminal needs to connect to the network, it can obtain pre-collected EPLMN lists from neighboring terminals through BLE communication, avoiding the need to perform a complete network search itself. This significantly reduces connection time while maintaining reliability through community-based information sharing.
2Measurement precision
If the terminal uses a traditional network search method, then all available PLMNs can be detected, but the user experience is significantly degraded due to long waiting time
Solution Approach 1:
The patent introduces BLE communication as an intermediary mechanism. Instead of directly performing time-consuming network searches, terminals use BLE broadcasts and scans to exchange EPLMN list information. This intermediary information exchange channel allows terminals to obtain network access information quickly from neighbors, improving user experience while maintaining detection accuracy through the shared community knowledge.
3Reliability
If the terminal waits for traditional network broadcast information, then the network identity information can be obtained officially, but the information acquisition time is unacceptably long
Solution Approach 1:
The patent implements a feedback mechanism where terminals continuously broadcast their obtained EPLMN lists via BLE and scan for information from other terminals. This creates a distributed feedback loop where network information is rapidly propagated through the terminal community. Terminals can quickly acquire accurate network identity information through this feedback-based information sharing, dramatically reducing acquisition time compared to waiting for traditional network broadcasts.
Data Source
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AI summary
Disclosed in the embodiments of the present invention are a network access method and a mobile communications terminal, comprising: first determining the current position of a mobile communications terminal; if the network identifier of the public land mobile network (PLMN) corresponding to said position has not been added to a pre-stored first equivalent public land mobile network (EPLMN) list, then scanning a Bluetooth low energy protocol broadcast channel; when a second EPLMN list published to said Bluetooth low energy protocol broadcast channel is detected by scanning, obtaining said second EPLMN list; if the network identifier of the PLMN corresponding to said position is added to said second EPLMN list, then lastly, accessing the network according to said second EPLMN list. By implementing the embodiments of the present invention, it is possible to reduce the duration of the connection of a mobile communications terminal to a public land mobile network, thereby significantly improving a user's communications experience.