Dynamic RF Allocation for Dual-SIM Blackout Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In dual-SIM electronic devices, the operation of one SIM is often suspended during measurements or operations associated with another SIM, leading to 'blackout' conditions that can delay or suspend services, particularly during paging occasions or RF resource allocation.
Innovation Solution
An electronic device with multiple SIMs dynamically allocates RF device usage to perform different types of measurements during paging occasions, adjusting measurement cycles based on DRX configurations and trigger conditions to minimize blackout periods for each SIM.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RF device is allocated to one SIM for operations, then that SIM can perform its operations, but other SIMs experience blackout and service suspension
Solution Approach 1:
The patent implements dynamic RF resource allocation where the RF device can be switched between different SIMs based on real-time needs. The system dynamically adjusts which SIM gets RF access during paging occasions, transforming the static allocation into a flexible, time-varying resource distribution that minimizes blackout periods for each SIM.
Solution Approach 2:
The patent utilizes periodic paging occasions to systematically allocate RF resources to different SIMs in a rotating manner. By scheduling RF access during specific periodic intervals (paging occasions) and performing different measurement types in different periods, the system ensures each SIM receives periodic service while distributing the RF resource usage over time.
2Measurement precision
If multiple measurements are performed simultaneously for multiple SIMs, then measurement coverage is improved, but RF resource conflicts and blackouts increase
Solution Approach 1:
The patent segments the measurement operations into different types (first-type measurements and second-type measurements) and assigns them to different paging occasions. This segmentation allows the system to perform comprehensive measurements across multiple SIMs without requiring simultaneous RF access, thereby reducing resource conflicts while maintaining measurement coverage.
Solution Approach 2:
The system dynamically selects which measurement type to perform in each paging occasion based on current RF allocation. The measurement strategy adapts in real-time to the RF resource availability, switching between different measurement types to optimize coverage while avoiding conflicts with active SIM operations.
3Duration of action of stationary object
If RF device is continuously allocated to one SIM, then that SIM maintains continuous service, but other SIMs experience prolonged blackouts
Solution Approach 1:
The patent implements a periodic switching mechanism where RF allocation is granted to different SIMs in alternating paging occasions. This periodic redistribution ensures that no single SIM monopolizes the RF resource indefinitely, and each SIM receives periodic service opportunities, balancing continuity for all SIMs over time.
Solution Approach 2:
By systematically alternating RF allocation between multiple SIMs across different paging occasions, the system ensures that useful action (service operation) continues for each SIM over the long term. The continuous alternation prevents prolonged blackouts while maintaining service continuity for all SIMs through time-sharing.
Data Source
AI summary
An electronic device is provided. The electronic device includes a processor connected to a first SIM and a second SIM, and RF devices used for communication based on the first SIM and on the second SIM, the processor identifies expiration of a timer for paging monitoring associated with the second SIM while use of the RF devices is allocated to the first SIM, to allocate use of the RF devices to the second SIM to perform first paging monitoring and first-type measurement, reallocates use of the RF devices to the first SIM according to completion of the first paging monitoring and the first-type measurement, identifies expiration of the timer for the paging monitoring associated with the second SIM while use of the RF devices is reallocated to the first SIM, and allocates use of the RF devices to the second SIM to perform second paging monitoring and second-type measurement.