Multi-SIM RF Resource Allocation for Paging Collision Avoidance
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Solution Overview
Problem
Multi-SIM devices face collisions in RF resource allocation, leading to missed paging signals and delayed or missed incoming calls due to simultaneous wake-up periods, resulting in inefficient power management and communication disruptions.
Innovation Solution
A method and apparatus for generating a paging pattern for each SIM, detecting collisions in RF resource allocations, and reallocating resources based on the generated pattern to ensure timely reception of paging signals, thereby preventing collisions and ensuring continuous communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If RF resources are shared among multiple SIMs, then device complexity is reduced, but collisions occur in resource allocation causing missed paging signals
Solution Approach 1:
The system performs preliminary detection of DRX cycle configurations for multiple SIMs before resource allocation. By detecting the DRX parameters in advance, the system can identify potential collisions and adjust resource allocation proactively, ensuring reliable paging signal reception while managing RF resources efficiently
Solution Approach 2:
The system dynamically adjusts RF resource allocation based on detected DRX cycle configurations. When collisions are detected between SIM wake-up periods, the system modifies the allocation timing and duration of RF resources, transforming a static resource sharing approach into a dynamic one that adapts to varying DRX patterns
2Reliability
If RF resources are allocated to one SIM at a time, then collisions are avoided, but power consumption increases due to continuous monitoring
Solution Approach 1:
The system implements periodic monitoring of paging channels using DRX (Discontinuous Reception) cycles for each SIM. Instead of continuous monitoring, the terminal wakes up at predetermined intervals defined by DRX parameters to check for paging signals, then returns to sleep mode. This periodic approach significantly reduces power consumption while maintaining reliable paging signal reception
Solution Approach 2:
The system preliminarily configures DRX parameters and wake-up schedules for each SIM before actual paging monitoring begins. By pre-planning the monitoring schedule based on network-provided DRX parameters, the system avoids the need for continuous monitoring and reduces power consumption while ensuring that wake-up periods are optimally timed
3Use of energy by moving object
If DRX cycles are used for multiple SIMs, then power consumption is reduced, but collisions in wake-up periods cause missed paging signals
Solution Approach 1:
The system detects and analyzes DRX cycle configurations for all SIMs in advance of resource allocation. By performing this preliminary detection, the system identifies potential wake-up period collisions and can adjust RF resource allocation accordingly, ensuring that each SIM receives adequate resources during its wake-up periods while maintaining low power consumption through DRX
Solution Approach 2:
The system dynamically adjusts RF resource allocation based on the detected DRX patterns of multiple SIMs. When wake-up period collisions are detected, the system modifies the timing and duration of RF resource allocation to accommodate all SIMs, transforming static resource sharing into a dynamic system that adapts to varying DRX configurations and prevents collisions
Data Source
AI summary
Methods, devices, and systems are disclosed for allocating the Radio Frequency (RF) resources of a multi-Subscriber Identification Module (SIM) device among multiple installed SIMS to receive their respective paging signals. In one embodiment, a method comprises generating a paging pattern of the first SIM, detecting a first collision between Radio Frequency (RF) resource allocations to the first SIM and the second SIM for receiving the paging signal, wherein RF resources are not allocated to the first SIM in the collision, and allocating the RF resources to the first SIM or the second SIM based on the generated paging pattern of the first SIM after the first collision.