Dual-SIM Network Switching Timing for False-Failure Avoidance
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Solution Overview
Problem
In dual-card mobile phones, activities of one SIM card in a different network can cause the primary network to mistakenly identify communication failures, leading to resource wastage and unnecessary power increases due to incorrect wireless link recovery mechanisms.
Innovation Solution
A method for determining and configuring network switching resources involves acquiring and transmitting system time and reference information between operator networks, allowing the primary network to accurately set time domain resources for the terminal to disconnect and perform activities in the secondary network without triggering unnecessary recovery mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operator A's network increases power or triggers wireless link recovery mechanism when detecting communication issues, then the network attempts to restore connection, but this leads to resource waste and unnecessary operations since the terminal is actually performing legitimate activities in operator B's network
Solution Approach 1:
The terminal performs preliminary actions by proactively sending indication information to operator A's network before switching to operator B's network. This indication includes timing information that allows operator A's network to predict when the terminal will be unavailable, enabling the network to suspend recovery mechanisms in advance rather than reacting to apparent connection failures.
Solution Approach 2:
The terminal provides feedback to operator A's network about its multi-network activities by sending indication information that includes timing parameters. This feedback mechanism allows operator A's network to understand the terminal's actual status and adjust its behavior accordingly, preventing unnecessary recovery operations.
2Adaptability or versatility
If the terminal performs activities in operator B's network through SIM card 2, then the terminal can maintain connectivity with operator B, but operator A's network mistakenly identifies this as a communication failure and performs invalid recovery operations
Solution Approach 1:
The terminal sends indication information to operator A's network before engaging in activities with operator B's network. This preliminary notification includes timing information that allows operator A's network to understand the upcoming switch is intentional and not a connection failure, preventing misinterpretation of the terminal's status.
Solution Approach 2:
The terminal provides continuous feedback to operator A's network about its activity status in operator B's network by sending indication information with timing parameters. This feedback mechanism ensures operator A's network maintains accurate information about the terminal's actual connectivity status rather than making incorrect assumptions.
Data Source
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AI summary
Provided is a method for determining a network switching resource, including: acquiring second system time information for performing activities in a second operator network and time reference information for performing activities in the second operator network; transmitting the second system time information and time reference information to a first operator network; receiving configuration information generated by the first operator network at least according to the second system time information and/or the time reference information; according to the configuration information, determining a time domain resource on which a terminal is disconnected from the first operator network and performs activities in the second operator network. According to embodiments of the present disclosure, when a terminal is disconnected from the first operator network on the time domain resource and performs activities in the second operator network, the first operator network will not mistakenly consider a problem to be present in the communication connection with the terminal, which may effectively prevent the waste of resources caused by misoperation in the first operator network.