MSIM Alert Reception Scheduling 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 scheduling conflicts, 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 receiving mobile alerts from multiple SIMs, including configurations to lock or unlock transceiver resource management (TRM) modules and adjust priorities based on message identifiers and network availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single receiver is used to receive alert/warning messages from multiple SIMs, then device complexity is reduced, but message reception reliability deteriorates due to scheduling conflicts
Solution Approach 1:
The system performs preliminary scheduling of alert/warning message receptions from multiple SIMs using a first-come, first-served approach. The receiver is pre-configured to prioritize messages based on scheduling decisions made before potential conflicts occur, ensuring critical messages are not lost due to resource contention.
Solution Approach 2:
A message scheduler intermediary component is introduced to manage the single receiver's allocation across multiple SIMs. This intermediary resolves scheduling conflicts by determining which SIM's alert messages take precedence at any given time, maintaining reliability without requiring multiple receivers.
2Loss of information
If receiver resources are allocated to receive alerts from one SIM, then message reception completeness for that SIM is improved, but the ability to receive alerts from other SIMs deteriorates
Solution Approach 1:
The receiver resource allocation is made dynamic rather than static. The system continuously monitors scheduling decisions from multiple networks and adapts receiver allocation in real-time based on which SIM has the highest priority alert message scheduled, ensuring both completeness and multi-SIM capability.
Solution Approach 2:
The system changes the priority parameter of different SIMs dynamically based on scheduling decisions. When a high-priority alert is detected from one SIM, the system adjusts resource allocation parameters to favor that SIM temporarily, then reverts or re-adjusts based on subsequent scheduling decisions from other SIMs.
Data Source
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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.