Multi-SIM Paging Gaps for Reliable Cross-Network Monitoring
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Solution Overview
Problem
Multi-SIM wireless communication devices face challenges in managing overlapping paging occasions and timing drifts between different cellular networks, leading to potential conflicts and reduced paging reliability.
Innovation Solution
Implementing periodic and one-time communication gaps in the data connection with one network to allow monitoring for paging signals from another network, along with strategies for time multiplexing and prioritization of services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single wireless interface is used to handle communication for multiple identities, then device complexity is reduced, but paging reliability deteriorates due to conflicts in monitoring paging signals from multiple networks
Solution Approach 1:
The patent segments the monitoring of paging signals by creating periodic communication gaps in the data connection with the first network during which the device can monitor paging signals from the second network. This temporal segmentation allows the single wireless interface to switch between networks without conflict, resolving the reliability issue while maintaining device simplicity.
Solution Approach 2:
The patent implements periodic communication gaps at predetermined intervals in the data connection with the first network. During these periodic gaps, the device monitors for paging signals from the second network. This periodic action enables reliable paging detection from multiple networks using a single interface, overcoming the conflict without requiring multiple simultaneous wireless interfaces.
2Reliability
If communication gaps are created to monitor paging signals from the second network, then paging reliability is improved, but data communication efficiency with the first network deteriorates
Solution Approach 1:
The patent applies partial action by creating communication gaps only during specific periodic intervals rather than continuously interrupting the data connection. The gaps are limited to the duration needed for paging signal monitoring, allowing data communication to proceed normally during non-gap periods. This partial interruption maintains paging reliability while minimizing impact on overall data communication efficiency.
3Reliability
If the device monitors paging signals from multiple networks simultaneously, then paging coverage is improved, but energy consumption increases
Solution Approach 1:
The patent uses periodic communication gaps instead of continuous monitoring of paging signals from the second network. The device monitors paging signals only during these predetermined periodic gaps while maintaining normal operation with the first network at other times. This periodic approach achieves comprehensive paging coverage across multiple networks while significantly reducing energy consumption compared to continuous simultaneous monitoring.
Data Source
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AI summary
A method of operating a wireless communication device (101) includes transmitting (5001), to a first communication network (100-1), a request (4002) for one or more communication gaps (551) in a communication along a data connection (189) associated with a first identity (451) of the wireless communication device (101) and monitoring (5004), in accordance with a timing of the one or more communication gaps (551), for one or more paging signals (4004, 4005) from a second communication network (100-2), the one or more paging signals (4004, 4005) being associated with a second identity (452) of the wireless communication device (101).