UE Inactive-State Transition for MSIM Priority and Data Stall
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in transitioning user equipment (UE) between connected and inactive states, particularly when multiple subscriptions are active, leading to suboptimal power consumption and network resource management.
Innovation Solution
A UE equipped with multiple subscriptions (MSIM) determines the priority of connections and network signal quality to autonomously request a transition to an inactive state when higher-priority connections are established or when network data stalls, utilizing signal coverage and data transmission status to optimize state transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE maintains a connected state with the first network, then data transmission can be performed, but power consumption increases and network resources are occupied
Solution Approach 1:
The UE dynamically transitions between connected and inactive states based on real-time conditions including subscription priority, signal quality, and data stall status. This dynamic state adjustment allows the system to optimize between maintaining data transmission capability and reducing power consumption, rather than staying in a fixed connected state.
Solution Approach 2:
The system changes the operational state parameter of the UE from connected to inactive based on multiple conditional parameters including signal quality thresholds, subscription priority levels, and data stall detection. This parameter-based state transition resolves the contradiction by adjusting the connection state according to actual network conditions and requirements.
2Use of energy by moving object
If the UE transitions to an inactive state, then power consumption is reduced, but data transmission latency increases
Solution Approach 1:
The UE performs preliminary assessments of signal quality, subscription priority, and data stall conditions before transitioning to an inactive state. This preliminary action ensures that transitions occur only when appropriate, preventing unnecessary state changes that would cause latency, while still achieving power savings when conditions warrant inactive state.
Solution Approach 2:
The system continuously monitors network conditions, signal quality, and data transmission status to provide feedback on whether the UE should remain connected or transition to inactive state. This feedback mechanism ensures timely state transitions that balance power consumption with data transmission latency requirements.
3Adaptability or versatility
If the UE manages multiple subscription connections, then communication versatility is improved, but device complexity increases
Solution Approach 1:
The UE segments the management of multiple subscriptions by evaluating each subscription's priority level independently and making state transition decisions based on the highest priority subscription. This segmentation approach simplifies the complexity of managing multiple connections by breaking down the decision-making process into manageable priority-based evaluations.
Solution Approach 2:
The system applies different management strategies to different subscriptions based on their local characteristics, particularly their priority levels. High-priority subscriptions maintain connected state while lower-priority subscriptions can transition to inactive state, allowing the system to handle multi-subscription versatility without uniform complexity.
Data Source
AI summary
Wireless communications systems and methods related to transition of a user equipment (UE) to an inactive state are provided. In some aspects, a multi-subscriber identity module (MSIM) UE may request a network to transition one subscription or SIM to an inactive state when another subscription or SIM has a higher priority. In some aspects, a UE may request for the UE to be transitioned to an inactive state based on the signal quality of network signals at the location of the UE. In some aspects, a UE may request a network to transition the network to an inactive state when downlink data transmission from the network to the UE has stalled.