MUSIM Gap Collision Handling via Priority Configuration

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Solution Overview

Problem

Current 3GPP specifications fail to provide a proper mechanism for handling collisions between Multi-Universal Subscriber Identity Module (MUSIM) gaps and legacy measurement gaps, leading to unpredictable measurement performance in wireless communications, affecting both Network A and Network B.

Innovation Solution

Implementing a method where a processor in a MUSIM UE applies different priorities to MUSIM gaps and legacy measurement gaps, either configured by the network or requested by the UE, to handle collisions, allowing for prioritization and reconfiguration of gaps to avoid overlaps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If MUSIM gaps are configured to monitor activities of Network B, then measurement capability for Network B is improved, but measurement performance for Network A becomes unpredictable due to collisions with legacy measurement gaps

Engineering Contradiction:
Improvemeasurement capabilityVSAvoidmeasurement performance stability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent applies preliminary action by having the UE request and network configure priority information for MUSIM gaps before collisions occur. The UE stores this priority information and uses it proactively to determine which gap to follow when collisions are detected, rather than reacting after performance degradation occurs. This prevents unpredictable measurement performance by establishing gap priority rules in advance.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent changes the parameter of gap priority by introducing priority information as a new attribute for MUSIM gaps. The network configures priority levels (e.g., high priority, low priority) for different MUSIM gaps, and the UE uses these priority parameters to resolve collisions with legacy measurement gaps. This parameter change transforms the gap management from a fixed schedule to a flexible, priority-based system that maintains measurement reliability.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the UE follows legacy measurement gaps, then measurement for Network A is maintained, but MUSIM gap collisions cause measurement failures for Network B

Engineering Contradiction:
Improvemeasurement reliabilityVSAvoidmeasurement completion rate
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent introduces priority information as a new parameter for MUSIM gaps, allowing the network to configure different priority levels (high priority, low priority) for different gaps. The UE uses this priority parameter to make intelligent decisions during collisions, ensuring that high-priority gaps are followed while low-priority gaps are skipped, thereby maintaining both Network A and Network B measurement reliability without complete failure.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent implements feedback by having the UE report collision information to the network and receive updated priority configurations. The UE monitors measurement performance and provides feedback about gap collisions, allowing the network to adjust priority settings dynamically. This feedback loop ensures continuous optimization of measurement reliability for both networks.

Inventive Principle:
Principle #23Feedback

3Reliability

If priority information is configured for MUSIM gaps, then collision handling is improved, but system complexity increases due to additional configuration requirements

Engineering Contradiction:
Improvecollision handling capabilityVSAvoidconfiguration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by making the priority information mechanism applicable to all MUSIM gap configurations, regardless of the specific network setup or gap pattern. The same priority-based collision handling approach works for various scenarios (single MUSIM gap, multiple MUSIM gaps, different priority combinations), providing a universal solution that reduces overall system complexity despite adding configuration capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent changes the parameter space by adding priority information as an optional attribute for MUSIM gaps. Rather than requiring complete redesign of the gap management system, the patent extends the existing gap configuration framework to include priority levels. This parameter extension approach maintains compatibility with legacy systems while adding collision handling capability, thereby limiting the increase in system complexity.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20240048960A1Handling Of MUSIM Gaps Collision In Mobile Communications
Publication Date: 2024.02.08 MEDIATEK SINGAPORE PTE LTD
  • US20240048960A1 patent drawing
  • US20240048960A1 patent drawing
  • US20240048960A1 patent drawing

AI summary

Examples pertaining to handling of multi-Universal Subscriber Identity Module (MUSIM) gaps collision in mobile communications are described. A multiple-Universal Subscriber Identity Modules (MUSIM) user equipment (UE) applies different priorities with respect to MUSIM gaps and legacy measurement gaps (MGs). The UE performs wireless communications such that a collision between MUSIM gaps and legacy MGs is handled.