Dual SIM Mobile Device Paging Control for VoLTE SMS Reception
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Solution Overview
Problem
Dual SIM mobile communication devices face challenges in managing simultaneous CS and PS services across two SIMs, leading to prioritization of MT CS services over MT PS services, resulting in resource wastage and interruptions during ongoing calls.
Innovation Solution
A mobile communications device configured to receive and process message identification information from pages, allowing it to control ongoing network connections by suspending or managing CS calls to facilitate the reception of SMS or caller-ID from VoLTE calls, thereby preventing resource wastage and interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If MT CS services are prioritized over MT PS services in dual SIM devices, then call quality and reliability are improved, but PS service reception is blocked and radio resources are wasted
Solution Approach 1:
The system performs preliminary identification of paging types by detecting paging messages before establishing a full radio resource control connection. This allows the device to anticipate upcoming PS services and prepare for potential suspensions of CS calls in advance, avoiding resource waste from unnecessary connection establishment
Solution Approach 2:
The system dynamically adjusts the priority between CS and PS services based on real-time detection of paging messages. When a PS service page is detected, the system dynamically suspends the ongoing CS call to allow PS service reception, then resumes the CS call afterward, creating a flexible priority scheme that adapts to current service requirements
2Loss of information
If a full radio resource control connection is established to receive paging information, then complete message identification is achieved, but radio resources are consumed and cell capacity is reduced
Solution Approach 1:
The system extracts only the essential paging information needed for message identification from the paging message without establishing a complete radio resource control connection. By taking out only the necessary identification data, the system achieves sufficient message identification while minimizing radio resource consumption
Solution Approach 2:
The system performs partial action by receiving and processing only the minimal necessary paging information to identify the message type, rather than establishing a full connection that would provide excessive information. This partial approach suffices for the invention's purpose of determining whether to suspend CS calls
3Adaptability or versatility
If CS calls are suspended to receive SMS or caller-ID from VoLTE calls, then dual SIM service functionality is improved, but call interruption may occur if not managed properly
Solution Approach 1:
The system applies preliminary anti-action by suspending the CS call in advance before PS service reception begins, and then resuming it after PS service completion. This preemptive suspension and resumption strategy prevents interference between CS and PS services while ensuring call continuity, as the CS call is restored to its original state after the brief suspension
Data Source
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AI summary
A mobile communications device and a method for controlling a mobile communications device including a radio processing circuit and a baseband processing circuit adapted to interact with the radio processing circuit, the mobile communications device configured to: receive a page, obtain message identification information from the page, process the obtained message identification information, and control an ongoing network connection resulting from the processed message identification information.