Dynamic Mode Switching for Dual SIM Communication Resource Arbitration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current dual SIM dual standby (DSDS) products face challenges in service resource utilization due to conflicts between services on two SIMs, leading to interrupted data services and affected mobile terminated voice services, resulting in deteriorated product performance and suboptimal resource utilization.
Innovation Solution
A method and apparatus that dynamically switch between dual SIM dual active (DSDA) and dual SIM dual standby (DSDS) modes based on frequency band conflicts, using an arbitration apparatus to manage operating modes and resource allocation, ensuring concurrent or non-concurrent execution of services to improve resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dual SIM dual active (DSDA) mode is used to allow concurrent services on two SIMs, then service quality and user experience are improved, but product cost and device complexity increase due to requiring separate RFICs, radio frequency front ends, and antennas for each SIM
Solution Approach 1:
The patent merges the radio frequency front end resources of two SIMs into a shared resource pool. The first and second radio frequency front ends are combined into a unified resource that can be dynamically allocated to different SIMs based on service requirements and frequency band availability, eliminating the need for completely separate hardware paths while maintaining concurrent service capability
Solution Approach 2:
The patent implements dynamic switching between DSDA and DSDS modes based on real-time frequency band conflicts. When no conflict exists, the system operates in DSDA mode allowing concurrent services; when conflicts arise, it dynamically transitions to DSDS mode to resolve the conflict, providing adaptive resource allocation that optimizes both service quality and resource utilization
2Device complexity
If dual SIM dual standby (DSDS) mode is used to reduce product cost by sharing radio frequency devices, then product cost is reduced, but service resource utilization deteriorates due to sequential service execution and arbitration preemption
Solution Approach 1:
The patent dynamically switches between DSDS and DSDA modes based on frequency band conflict detection. When conflicts are detected, the system operates in DSDS mode with sequential execution to save resources; when no conflicts exist, it transitions to DSDA mode to enable concurrent execution, thereby maximizing service resource utilization while maintaining cost-effectiveness
Solution Approach 2:
The patent changes the operating mode parameter (DSDS vs DSDA) based on frequency band conflict conditions. By monitoring whether the first SIM's frequency band conflicts with the second SIM's frequency band, the system adjusts its operational parameters to optimize resource utilization - enabling concurrent mode when safe and sequential mode when necessary
3Productivity
If frequency band conflict detection and dynamic mode switching are implemented, then service resource utilization is improved, but system complexity and control difficulty increase
Solution Approach 1:
The patent implements a feedback mechanism where the arbitration apparatus continuously monitors frequency band usage by both SIMs, detects conflicts in real-time, and triggers appropriate mode switching responses. This closed-loop control system automatically adjusts operating modes based on detected conditions, improving resource utilization through intelligent decision-making
Solution Approach 2:
The patent introduces an arbitration apparatus as an intermediary between the two SIMs and the radio frequency front end. This mediator detects frequency band conflicts, determines appropriate operating modes, and coordinates resource allocation, thereby managing system complexity through centralized intelligent control rather than distributed complex interactions
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Embodiments of this application disclose a method for performing a communication service by using a plurality of modems MODEM, to improve service resource utilization. A method embodiment of this application includes: A first modem MODEM 1 performs a first communication service in a first frequency band. A second modem MODEM 2 performs a second communication service in a second frequency band. The MODEM 1 and the MODEM 2 are in a first operating mode. The MODEM 1 receives, from an access network device, a switching instruction for the first communication service, where the switching instruction is used to instruct the MODEM 1 to switch from the first frequency band to a third frequency band. The MODEM 1 indicates to an arbitration apparatus that the MODEM 1 needs to be switched to the third frequency band. The arbitration apparatus determines whether the third frequency band conflicts with the second frequency band, to obtain a determining result. The arbitration apparatus performs one of the following operations based on the determining result: maintaining the first operating mode, or switching the first operating mode to a second operating mode for the MODEM 1 and the MODEM 2. One of the first operating mode and the second operating mode is a concurrent operating mode, and the other is a non-concurrent operating mode.