Multi-card UE Paging Collision Management via Network-Assisted Configuration
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Solution Overview
Problem
Multi-card mobile phones face issues such as performance degradation in one system due to monitoring another, systematic paging collisions, incorrect response to paging messages, and wastage of paging resources due to lack of suspension mechanisms.
Innovation Solution
A communication method and multi-card user equipment (UE) that register with a first operator network using a first USIM, request and provide information about a USIM from a non-first operator network, and receive configuration information to operate in the non-first operator network accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the multi-card terminal monitors a second system while communicating with a first system, then the terminal can maintain connectivity to both systems, but the performance of the first system is affected
Solution Approach 1:
The patent segments the monitoring operations by dividing them into specific time slots and frames. The terminal performs measurements and reads system messages only in designated slots (e.g., slots 2, 3, 7, 8 in a 10ms frame) rather than continuously monitoring both systems, thereby reducing interference with the first system's performance while maintaining multi-system connectivity
Solution Approach 2:
The patent implements periodic monitoring where the terminal checks the second system at regular intervals (e.g., every frame or every other frame) rather than continuously. This periodic action includes listening for paging messages, performing measurements, and reading system information at scheduled times, which reduces the overall impact on the first system while maintaining the ability to detect and respond to second system events
2Adaptability or versatility
If the multi-card terminal uses multiple SIM cards, then the terminal can support multiple operators, but systematic paging collisions occur
Solution Approach 1:
The patent applies local quality by configuring different monitoring parameters for different systems based on their specific characteristics. The network can assign different paging cycles, different time slot offsets, or different frame structures for the first and second systems, allowing each system to be optimized independently and reducing the likelihood of paging collisions while maintaining multi-operator support
3Adaptability or versatility
If the multi-card terminal responds to a paging message on the second system, then the terminal can communicate with the second system, but operations on the first system are stopped and paging resources are wasted
Solution Approach 1:
The patent implements preliminary action by having the terminal read and store system information (such as system messages, configuration parameters, and paging indicators) in advance during designated measurement slots before they are needed for paging responses. This allows the terminal to quickly respond to paging messages on the second system without needing to perform lengthy measurements or readings at the moment of paging, thereby reducing the duration of suspension and minimizing waste of paging resources on the first system
Data Source
AI summary
A communication method for multi-card user equipment, comprising: after a multi-card UE finishes registering to a first operator network by using a first USIM, and when receiving an information request that is initiated by the first operator network for acquiring the USIM that is used by the multi-card UE and that belongs to a non-first operator network, the multi-card UE feeding back information of the USIM belonging to the non-first operator network to the first operator network; and the multi-card UE receiving configuration information for the non-first operator network that is sent by the first operator network, and operating in the non-first operator network according to the received configuration information.