Multi-SIM Paging Collision Avoidance via Time Slot Segmentation
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Solution Overview
Problem
In 5G mobile communication systems, terminals with multiple Subscriber Identity Modules (SIMs) face challenges in efficiently managing paging occasions across different networks, leading to potential service disruptions and resource wastage due to overlapping paging collisions and inability to monitor multiple networks simultaneously.
Innovation Solution
A method for wireless communication devices to perform communication based on multiple SIMs by transmitting request messages to network nodes, including information about multiple SIMs, and receiving acceptance messages, allowing simultaneous monitoring and service management across multiple networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal monitors paging for multiple PLMNs simultaneously, then the service coverage and reliability are improved, but the device complexity and energy consumption increase
Solution Approach 1:
The patent segments the paging monitoring process by separating the monitoring of first PLMN and second PLMN into distinct time slots. The terminal monitors paging for the first PLMN during a first time slot and paging for the second PLMN during a second time slot, rather than attempting to monitor both simultaneously. This segmentation reduces the immediate complexity burden on the device while maintaining reliable service coverage across multiple networks.
2Device complexity
If the terminal monitors paging for one PLMN at a time, then the device complexity is reduced, but the service reliability deteriorates due to paging collisions
Solution Approach 1:
The patent implements dynamic time slot allocation for paging monitoring. The network can configure different time slots for monitoring different PLMNs, and these time slots can be adjusted dynamically based on network conditions and service requirements. This dynamic approach allows the terminal to monitor multiple PLMNs sequentially with reduced complexity while maintaining service reliability through proper time slot management.
3Reliability
If the terminal uses separate time slots for different SIMs, then paging collisions are avoided, but the loss of time increases due to sequential monitoring
Solution Approach 1:
The patent employs periodic paging monitoring where the terminal checks paging occasions for different PLMNs in a regular, predetermined sequence. By establishing periodic monitoring intervals and patterns, the system avoids random delays and ensures that both PLMNs are monitored systematically. This periodic approach minimizes time loss by optimizing the monitoring schedule to cover all necessary PLMNs efficiently.
Data Source
AI summary
A disclosure of the present specification provides a method for a wireless communication device to perform communication based on a plurality of Sims. The method may include the steps of: transmitting a request message to a first network node of a second network, the request message including first information pertaining to the plurality of SIMs; and receiving an acceptance message for the request message from the first network node of the second network.