LP-WUS Monitoring Priority Across MUSIM Gaps in Multi-SIM UEs

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Solution Overview

Problem

In wireless communication systems, particularly in 5G and beyond, there is a challenge in managing collisions between low power wake-up signal (LP-WUS) monitoring occasions and multiple user subscriber identity module (MUSIM) gaps, leading to inefficient power consumption and communication disruptions.

Innovation Solution

A method and apparatus for handling collisions by prioritizing LP-WUS monitoring occasions or MUSIM gaps based on associated priorities, allowing selective skipping or monitoring of LP-WUS during MUSIM gaps to optimize power usage and communication efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the UE monitors LP-WUS during all scheduled monitoring occasions, then wake-up signal detection reliability is improved, but power consumption increases during MUSIM gap periods

Engineering Contradiction:

Improvewake-up signal detection reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies partial action by selectively monitoring LP-WUS only during non-MUSIM gap periods. Instead of monitoring during all scheduled occasions, the UE skips monitoring during MUSIM gap periods when MUSIM operations have higher priority, thereby reducing power consumption while maintaining adequate wake-up signal detection reliability during available time periods.

Inventive Principle:

Principle #16Partial or excessive action

2Reliability

If the UE prioritizes MUSIM gap operations over LP-WUS monitoring, then MUSIM communication reliability is improved, but wake-up signal detection latency increases

Engineering Contradiction:

ImproveMUSIM communication reliabilityVSAvoidwake-up signal detection latency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent changes the priority parameter dynamically based on time conditions. During MUSIM gap periods, MUSIM operations are assigned higher priority; during non-gap periods, LP-WUS monitoring is prioritized. This parameter change approach ensures MUSIM communication reliability during critical gap periods while minimizing wake-up signal detection latency during other time periods.

Inventive Principle:

Principle #35Parameter changes

3Use of energy by moving object

If the UE skips LP-WUS monitoring during MUSIM gaps, then power consumption is reduced, but wake-up signal detection accuracy deteriorates

Engineering Contradiction:

Improvepower consumptionVSAvoidwake-up signal detection accuracy

Core Design Contradiction:

Use of energy by moving objectVSMeasurement precision

Solution Approach 1:

The patent implements periodic monitoring of LP-WUS during non-MUSIM gap periods. By maintaining regular monitoring intervals during available time periods, the system ensures adequate detection accuracy is achieved periodically, while accepting reduced monitoring frequency during MUSIM gap periods to conserve power.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS20260032422A1Low power wake-up signal monitoring with multiple user subscriber identity module gaps

Publication Date: 2026.01.29 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information associated with a first subscriber identity module (SIM) of the UE, wherein the configuration information is associated with configuring at least one of a set of low power wake-up signal (LP-WUS) monitoring occasions or a set of multiple user SIM (MUSIM) gaps at the UE. The UE may skip, in connection with an LP-WUS monitoring occasion at least partially overlapping with a MUSIM gap LP-WUS monitoring during the LP-WUS monitoring occasion or monitoring for a communication associated with a second SIM of the UE during the MUSIM gap based at least in part on a priority associated with the LP-WUS monitoring occasion and a priority associated with the MUSIM gap. Numerous other aspects are described.