Network Switch Resource Determination for Multi-SIM Terminals
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Solution Overview
Problem
Mobile phones with multiple SIM cards often experience disconnections from one network when switching to another, leading to unnecessary resource wastage and incorrect triggering of radio link recovery mechanisms by the original network, as the network operator is unaware of the switch and mistakenly identifies a communication problem.
Innovation Solution
A method and apparatus for determining a network switch resource, where a terminal receives configuration information from the first operator network to disconnect and reconnect within a preset duration, allowing flexible switching between operator networks without triggering unnecessary recovery mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal disconnects from the first operator network to perform activities in the second operator network, then the terminal can switch networks to perform diverse communication activities, but the first operator network mistakenly identifies this as a communication problem and triggers unnecessary radio link recovery mechanisms
Solution Approach 1:
The patent applies preliminary action by having the terminal send a first indication information to the first operator network before actually disconnecting. This pre-notification allows the network to anticipate the disconnection and adjust its state accordingly, preventing the network from mistakenly interpreting the planned disconnection as a communication failure and triggering unnecessary recovery mechanisms.
Solution Approach 2:
The patent implements feedback through the exchange of indication information between the terminal and the first operator network. The terminal sends first indication information before disconnection and second indication information after reconnection, creating a feedback loop that allows the network to understand the intentional nature of the disconnection and avoid erroneous recovery actions.
2Reliability
If the network enhances power or triggers radio link recovery to restore connection, then the network attempts to recover communication, but the terminal cannot recover activities in the first operator network because it is performing activities in the second network
Solution Approach 1:
The patent applies preliminary anti-action by having the terminal notify the first operator network in advance of the intended disconnection. This pre-warning prevents the network from taking unnecessary recovery actions (enhancing power or triggering radio link recovery) that would be counterproductive since the terminal is intentionally switching networks and cannot recover the first network's activities during the switch.
3Adaptability or versatility
If the terminal switches between multiple operator networks, then the terminal can access diverse network services, but the network operators cannot distinguish between intentional switching and communication failures
Solution Approach 1:
The patent introduces intermediary information (the first and second indication information messages) that acts as a mediator between the terminal and the first operator network. These indication information messages carry the intent to disconnect and reconnect, allowing the network to understand the terminal's switching behavior and distinguish it from actual communication failures.
Data Source
AI summary
A method for determining a network switch resource is applicable to a terminal that is connected to at least two operator networks. The method includes: receiving first configuration information sent by a first operator network; determining a preset duration for disconnection from the first operator network based on the first configuration information; and disconnecting from the first operator network and performing activities in a second operator network for a duration less than or equal to the preset duration and with a preset limit moment as a boundary.