Cross-Subscription Measurements for Dual SIM User Equipment
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Solution Overview
Problem
In dual SIM dual active (DSDA) deployments, the static allocation of hardware capabilities between network subscriptions in user equipment (UE) is inefficient due to changing network conditions, leading to suboptimal performance as network conditions vary over time.
Innovation Solution
The UE dynamically allocates hardware capabilities between its two subscriptions based on current or predicted network conditions, using measurement reports and machine learning algorithms to optimize resource utilization, and can perform network measurements using the subscription with better capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If hardware capabilities are statically allocated between network subscriptions, then device complexity is reduced and ease of operation is improved, but communication efficiency and performance deteriorate as network conditions change
Solution Approach 1:
The patent implements dynamic hardware capability allocation where the UE can switch which network subscription uses which hardware capabilities based on current network conditions. The system determines network conditions for each subscription, identifies mismatches between subscription priority and hardware capability quality, and dynamically reallocates capabilities to optimize performance. This dynamic approach resolves the contradiction by allowing the system to adapt hardware allocation to changing network conditions, improving communication efficiency without requiring permanent complex architecture.
Solution Approach 2:
The system changes the allocation parameters of hardware capabilities (bandwidth, band, operating frequency) between network subscriptions based on measured network conditions. By dynamically adjusting which subscription receives which hardware capabilities, the system optimizes communication efficiency for current conditions while maintaining a relatively simple static hardware architecture, thus resolving the contradiction between simplicity and efficiency.
2Productivity
If hardware capabilities are dynamically reallocated based on network conditions, then communication efficiency and performance are improved, but device complexity and measurement requirements increase
Solution Approach 1:
The patent implements a feedback mechanism where the UE measures network conditions for each network subscription, compares these conditions against the current hardware capability allocation, and dynamically adjusts allocation based on the feedback. The system determines whether network conditions match the priority of each subscription's allocated hardware capabilities, and reallocates when mismatches are detected. This feedback-driven approach enables performance optimization through dynamic reallocation while managing system complexity through structured decision-making based on measured conditions.
3Measurement precision
If the UE performs measurements using the subscription with better hardware capabilities, then measurement precision and performance are improved, but the strict adherence to assignment rules is compromised
Solution Approach 1:
The patent inverts the traditional measurement approach by allowing the UE to perform measurements assigned to one network subscription using the hardware capabilities of another subscription that has better measurement suitability. Instead of requiring measurements to be performed strictly by the assigned subscription, the system identifies when a different subscription's hardware capabilities are better suited for the measurement task and permits cross-subscription measurement execution. This inversion enables higher measurement precision while maintaining adaptability to hardware capability characteristics.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may support multi-subscriber identity module (SIM) operation in dual SIM dual active (DSDA) deployments. In some aspects, the UE may dynamically allocate its hardware capabilities between a first network subscription and a second network subscription based on current or predicted future network conditions. The UE may predict future network conditions based on past and/or current measurement reports of network conditions. In some aspects, a UE may determine that a first network subscription's hardware capability is better suited to perform one or more network measurements assigned to a second network subscription of the UE. The UE may perform one or more network measurements assigned to the second network subscription via the first network subscription, and then transmit the report to the network via the second network subscription.