Dual Sim Dual Active Terminal Concurrent 5G Voice Call Processing
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Solution Overview
Problem
Current 5G terminals with Dual Sim Dual Active (DSDA) technology do not support concurrent 5G voice services, limiting the ability to have multiple calls active simultaneously, as they typically support 5G+4G or 4G+4G voice calls but not 5G+5G, and cannot truly realize concurrent calls from both SIM cards.
Innovation Solution
A method and device for a terminal with multiple SIM cards that allows concurrent call processing by determining call requests and managing call states (in-call, call holding, and call waiting) for each SIM card, enabling multiple calls to be processed simultaneously and displayed on an interface, with options to merge or add calls based on user requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Dual Sim Dual Active (DSDA) technology is implemented to support multiple calls, then the ability to have multiple calls active simultaneously is improved, but the support for concurrent 5G voice services deteriorates (limiting to 5G+4G or 4G+4G only)
Solution Approach 1:
The patent segments the call management system into separate call request determination modules for each SIM card, allowing independent processing of call requests from SIM1 and SIM2. This segmentation enables concurrent 5G voice services by treating each SIM's call request separately, overcoming the limitation of traditional DSDA technology that could only handle one 5G call at a time.
Solution Approach 2:
The patent introduces a new dimension of concurrent call handling by implementing dual active mode that allows both SIM cards to be in call state simultaneously on 5G networks. This moves beyond the traditional single-active-dimension approach where only one SIM could handle 5G voice calls at a time, enabling true dual-card dual-call functionality.
2Productivity
If traditional DSDA technology is used, then multiple calls can be active simultaneously, but the system cannot truly realize concurrent calls from both SIM cards on 5G network
Solution Approach 1:
The patent implements preliminary action by determining and validating call requests from both SIM cards before initiating concurrent 5G voice services. The system pre-establishes call state management mechanisms and determines call requests in advance, ensuring that both SIM cards can reliably execute concurrent 5G calls without conflicts or failures.
Solution Approach 2:
The patent changes the operational parameters of the DSDA system by modifying how call requests are determined and processed. Instead of traditional sequential handling, the system now determines call requests from both SIM cards simultaneously and manages call states (in-call, call holding, call waiting) independently for each SIM, enabling reliable concurrent 5G call execution.
3Ease of operation
If call state management is implemented for concurrent calls, then the ability to manage multiple calls is improved, but the system complexity increases
Solution Approach 1:
The patent segments call state management into separate, independent modules for each SIM card. Each SIM's call state (in-call, call holding, call waiting) is managed independently through dedicated determination and control mechanisms. This segmentation simplifies the overall system architecture by avoiding complex inter-dependent state management, making the system easier to operate despite handling multiple concurrent calls.
Data Source
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AI summary
This present disclosure relates to a method for a call, device and storage medium, relating to the technical field of intelligent terminals. The method includes: determining (S11, S21) a call request, used to trigger a concurrent call based on a first SIM card and a second SIM card; performing (S12) a call processing for the first SIM card and the second SIM card based on the call request.