MSIM Alert Reception Priority for Single-Receiver Conflicts

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Solution Overview

Problem

UEs utilizing a single receiver for receiving alert/warning messages from multiple SIMs may lose some or all of these messages due to overlapping broadcasts, necessitating improved alert/warning message protection in MSIM configurations.

Innovation Solution

Implementing a first-come, first-served (FCFS) approach, application processor (AP) trigger approach, message stitching, and single SIM (SSIM) approach to manage receiver resources effectively for prioritizing and processing alert/warning messages from multiple SIMs, including configurations to lock or unlock transceiver resource management (TRM) modules and adjust priority based on message identifiers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single receiver is used to receive alerts from multiple SIMs, then device complexity is reduced, but alert message reliability deteriorates due to receiver conflicts

Engineering Contradiction:
Improvereceiver configurationVSAvoidalert message reception
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent implements dynamic receiver resource allocation by introducing a priority mechanism that adjusts receiver assignment based on alert importance. The system dynamically switches between receiving alerts from different SIMs based on priority levels, allowing the single receiver to adaptively serve multiple SIMs without permanent conflicts. This resolves the contradiction by making the receiver configuration flexible rather than static.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of receiver resource allocation from equal distribution to priority-based allocation. By introducing priority parameters for different alert types and SIMs, the system optimizes the single receiver's utilization to ensure critical alerts are received reliably while maintaining support for multiple SIMs. This parameter change resolves the contradiction between simplicity and reliability.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If receiver resources are locked for one SIM to ensure reliable alert reception, then alert reliability improves, but the ability to receive alerts from other SIMs deteriorates

Engineering Contradiction:
Improvealert message receptionVSAvoidmulti-SIM alert reception
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent implements periodic release and reassignment of receiver resources. Instead of permanent locking, the system locks receiver resources for a SIM only for the duration needed to receive a specific alert, then releases them periodically to allow other SIMs to access the receiver. This periodic action pattern ensures both reliable reception for the active SIM and adaptability for other SIMs.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent makes the receiver resource allocation dynamic through priority-based locking and unlocking. The system dynamically adjusts which SIM locks the receiver based on current alert priorities and timing, allowing the receiver to be exclusively assigned to one SIM at a time while maintaining versatility across multiple SIMs over time. This dynamic approach resolves the contradiction between reliability during reception and adaptability across SIMs.

Inventive Principle:
Principle #15Dynamics

3Reliability

If multiple receiver resources are allocated to each SIM to prevent message loss, then alert reliability improves, but device complexity and resource consumption increase

Engineering Contradiction:
Improvealert message receptionVSAvoidreceiver resource consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent makes the single receiver universal by enabling it to serve multiple SIMs through priority-based allocation. Instead of dedicating separate receivers to each SIM, the same receiver is shared across multiple SIMs with intelligent resource management. This multi-functionality approach ensures reliable alert reception for any active SIM while avoiding the energy consumption and complexity of multiple simultaneous receivers.

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

4Device complexity

If a single receiver is used to receive alerts from multiple SIMs, then device complexity is reduced, but information completeness deteriorates due to missed alerts

Engineering Contradiction:
Improvereceiver configurationVSAvoidalert message completeness
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

The patent implements preliminary prioritization of alerts before reception. By pre-assessing and ranking alerts from different SIMs based on importance and timing, the system ensures that the single receiver is always assigned to the most critical alert first. This preliminary action prevents information loss by ensuring that high-priority alerts are captured before lower-priority ones, maintaining information completeness despite the single receiver constraint.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent dynamically adjusts receiver allocation based on real-time alert priorities to prevent information loss. The system continuously monitors incoming alerts from multiple SIMs and dynamically switches receiver assignment to ensure that important information is never missed. This dynamic adaptation maintains information completeness while keeping the receiver configuration simple.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12627961B2Alert and warning message protection in MSIM
Publication Date: 2026.05.12 QUALCOMM INC
  • US12627961B2 patent drawing
  • US12627961B2 patent drawing
  • US12627961B2 patent drawing

AI summary

An apparatus for wireless communication is provided. The apparatus is configured to obtain, based on a first mobile alert associated with a first subscriber identity module (SIM) being scheduled for broadcast from a first network, an indication of receiver resources assigned for receiving the first mobile alert associated with the first SIM. The apparatus is further configured to refrain, based at least in part on the indication, from receiving a second mobile alert associated with a second SIM scheduled for broadcast from a second network. The first mobile alert and the second mobile alert may be associated with messages from at least one of a CMAS or an ETWS.