Base Station Multi-SIM Awareness for Power Reduction
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Solution Overview
Problem
Current wireless communication devices with multiple SIM cards face inefficiencies in power consumption and air resource utilization due to lack of awareness by base stations about the presence of multiple SIM cards in a single device, leading to duplicated measurements and uncoordinated configurations.
Innovation Solution
Implementing a method where the base station is aware of the presence of multiple SIM cards in a device, allowing for coordinated measurements and configurations, such as aligned paging cycles, synchronized handovers, and shared measurement reports, to improve performance and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the base station is unaware of multiple SIM cards in a device, then each SIM card can be managed independently, but power consumption increases and air resource utilization deteriorates due to duplicated measurements
Solution Approach 1:
The base station receives feedback information from the wireless communication device indicating the presence of multiple SIM cards. This feedback mechanism enables the base station to adjust its measurement and configuration strategies, coordinating resources across multiple SIM cards to eliminate duplicated measurements and reduce power consumption.
Solution Approach 2:
The base station implements a unified measurement management system that handles multiple SIM cards simultaneously. Instead of treating each SIM card as a separate entity requiring independent measurements, the system provides multi-functional measurement capabilities that serve all SIM cards in the device, reducing redundant operations and energy consumption.
2Productivity
If the base station coordinates measurements for multiple SIM cards, then power consumption is reduced, but the complexity of managing aligned paging cycles and synchronized handovers increases
Solution Approach 1:
The base station merges the configuration management of multiple SIM cards into a coordinated framework. By aligning paging cycles and synchronizing handover procedures across SIM cards, the system combines previously separate configuration processes into a unified management approach, improving air resource utilization while maintaining manageable complexity through systematic coordination.
3Measurement precision
If duplicated measurements are performed for each SIM card, then measurement precision is maintained, but power consumption increases by up to 50%
Solution Approach 1:
Instead of performing independent duplicated measurements for each SIM card, the base station utilizes measurement results from one SIM card as a reference or copy for another SIM card when appropriate. This copying approach maintains measurement precision requirements while significantly reducing the power consumption associated with redundant measurement operations.
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
A wireless communication apparatus (120,220,320) for a wireless communication system comprising a receiver to receive communication signals, one or more processor to determine, based on the communication signals, that at least two SIM cards are located in one and the same wireless communication device (130,131,132, 230,231,232) of the wireless communication system, and the one or more processor further to coordinate requests for the at least two SIM cards that are located in the wireless communication device (130,131,132,230,231,232).