MUSIM Measurement Gap Priority Switching for Overlap Avoidance
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Solution Overview
Problem
Current 3GPP specifications lack mechanisms to dynamically adjust gap priorities for multiple universal subscriber identity module (MUSIM) devices, leading to potential overlap and interference between network gaps, especially when a user equipment (UE) is in RRC_IDLE or RRC_INACTIVE mode with different network subscriptions.
Innovation Solution
Implement a method and apparatus to dynamically change gap priorities based on conditions such as radio link quality, mobility, and predicted events, allowing UE to adjust priorities of measurement gaps in both primary and secondary networks to avoid overlap and ensure efficient resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gap priorities are statically configured for MUSIM devices, then network activities can be performed, but gap overlap and interference occur between primary and secondary networks
Solution Approach 1:
The patent implements dynamic gap priority adjustment by introducing a monitoring mechanism that continuously evaluates overlap conditions between measurement gaps of primary and secondary networks. When overlap is detected, the system dynamically modifies gap priorities to resolve conflicts, transforming the static priority configuration into an adaptive system that responds to real-time network conditions.
Solution Approach 2:
The patent establishes a feedback loop where the UE monitors for gap overlap conditions and provides this information back to the network. The network then adjusts gap priorities based on this feedback, creating a closed-loop control system that continuously optimizes gap configuration to prevent interference while maintaining reliable network activities.
2Adaptability or versatility
If multiple network subscriptions are maintained simultaneously, then service coverage is expanded, but gap configuration complexity increases
Solution Approach 1:
The patent enables the UE to autonomously monitor for gap overlap conditions and determine when priority adjustments are needed. This self-service approach reduces the burden on network configuration and allows the device to automatically adapt its gap configuration when maintaining multiple network subscriptions, thereby managing complexity at the device level.
Solution Approach 2:
The patent separates the gap configuration management into distinct components: initial gap configuration from the network, autonomous monitoring by the UE, and conditional priority adjustment. This segmentation allows each component to be optimized independently, reducing overall system complexity while supporting multiple network subscriptions.
3Object-affected harmful factors
If gap priorities are dynamically adjusted, then gap overlap is reduced, but signaling overhead increases
Solution Approach 1:
The patent configures the UE with advance knowledge of overlap conditions and priority adjustment rules before they occur. The network provides configuration parameters that enable the UE to autonomously detect and resolve overlap issues without requiring continuous network signaling, thereby preventing gap interference while minimizing signaling overhead.
Solution Approach 2:
The patent establishes gap priority configurations and monitoring rules in advance through network configuration messages. This preliminary action allows the UE to autonomously manage gap priorities based on pre-defined conditions, reducing the need for ongoing signaling exchanges while maintaining effective gap overlap prevention.
Data Source
AI summary
A method may include receiving, from a first network, a configuration of a group priority of the first network and a group priority of a second network, a gap priority of gaps associated to the first network, and a condition under which a user equipment can modify the gap priority of gaps associated to the first network relative to a gap priority of gaps associated to the second network. The method may also include requesting the first network for gaps related to activities of a second network. The method may further include monitoring the condition received from the first network. In addition, the method may include modifying, in response to the monitoring, the gap priority of gaps associated to the first network element or the gap priority of gaps associated to the second network.