Multi-SIM Wireless Device Power Management via Dynamic State Selection
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Solution Overview
Problem
Wireless communication devices with multiple SIMs experience higher power consumption due to the need to maintain active connections with multiple network nodes, which is inefficient and affects user experience when battery levels are low.
Innovation Solution
A method in a wireless communication device that determines when battery power falls below a threshold, selectively changes the connection state of one or more SIMs to a lower power consumption state based on parameters such as radio channel characteristics, network capabilities, user behavior, or priority settings, to optimize power usage without compromising service quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple SIMs maintain active connections with multiple network nodes simultaneously, then communication service quality is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the connection state configurable and adjustable based on battery level. The system dynamically transitions SIMs between connected and disconnected states depending on power availability, allowing the communication architecture to adapt its complexity and energy usage in real-time rather than maintaining a fixed active state for all SIMs
Solution Approach 2:
The patent changes the operational parameters of SIM connections based on battery threshold levels. When battery level drops below a threshold, the system modifies connection parameters by disconnecting less critical SIMs from network nodes, thereby reducing power consumption while maintaining essential communication services
2Adaptability or versatility
If multiple receiving paths are used to support multiple SIMs, then device functionality is improved, but power consumption increases
Solution Approach 1:
The patent extracts or deactivates receiving paths based on battery conditions. When power is limited, the system selectively disables receiving paths for non-critical SIMs, removing unnecessary energy-consuming components from active operation while preserving receiving paths for essential communication functions
3Reliability
If connection state is maintained for all SIMs, then service availability is improved, but battery life decreases
Solution Approach 1:
The patent applies partial action by maintaining connection states for only some SIMs rather than all SIMs simultaneously. When battery power is limited, the system selectively maintains connections for high-priority SIMs while disconnecting lower-priority ones, achieving sufficient service availability for critical functions without the excessive power consumption of keeping all connections active
Data Source
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AI summary
A wireless communication device (140) and method therein for handling connection state changes in a wireless communication system (100) are disclosed. The wireless communication device (140) comprises at least two SIMs, in which a first SIM is in a first original connection state towards a first network node, a second SIM is in a second original connection state towards a second network node. The wireless communication device first determines whether a battery power in the wireless communication device is below a first threshold. When the battery power is below the first threshold, the wireless communication device selects a SIM out of the at least two SIMs for which to change its original connection state to a third connection state based on a parameter. The third connection state is a connection state implying lower power consumption for the wireless communication device compared to its original connection state. Then the wireless communication device performs a connection state change for the selected SIM from its original connection state to the third connection state.