Dynamic Resource Allocation for Dual-SIM Wireless Devices
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Solution Overview
Problem
In wireless communications, dual-SIM devices often fail to efficiently allocate shared time-frequency resources during communication pauses, leading to resource inefficiencies as the resources allocated for one SIM are not released even when the communication session is paused, preventing the second SIM from utilizing these resources.
Innovation Solution
The implementation of a method where a user equipment (UE) with multiple subscriber identity modules (SIMs) allocates shared time-frequency resources by pausing communication sessions on one SIM, allowing the UE to release these resources and allocate them to the second SIM during the pause, either by receiving or transmitting a pause indication, and managing resource priority using discontinuous reception (DRX) cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If time-frequency resources are allocated for a first SIM during a communication session, then communication quality for the first SIM is maintained, but the resources cannot be utilized by a second SIM during pause periods, leading to resource inefficiency
Solution Approach 1:
The patent implements dynamic resource allocation by allowing the UE to switch between maintaining and releasing time-frequency resources based on the communication state (active vs. paused). When a communication session is paused, the UE dynamically releases the associated time-frequency resources, enabling them to be reallocated to another SIM. This dynamic adjustment resolves the contradiction by making resource allocation flexible rather than static, ensuring resources are productive during active communication and available for other uses during pauses.
Solution Approach 2:
The patent changes the state parameter of resource allocation from a fixed state to a variable state that transitions between allocated and released based on communication session status. By monitoring the pause state of communication sessions and adjusting resource allocation accordingly, the system transforms idle resources into available resources that can be reassigned, thereby improving overall resource utilization efficiency without compromising active communication quality.
2Reliability
If resources are held reserved for a paused communication session, then quick resumption is possible, but resource availability for other SIMs is reduced
Solution Approach 1:
The patent extracts the resource holding decision from the paused communication session context and relocates it to the resource management layer. Instead of automatically holding resources for paused sessions, the system extracts and evaluates resource allocation independently, releasing resources during pause periods while maintaining the capability to quickly reallocate them when needed. This extraction resolves the contradiction by separating resource availability from session state, allowing resources to be available for other SIMs while still supporting rapid resumption through efficient reallocation mechanisms.
3Reliability
If the UE continuously monitors for communication resumption, then communication continuity is maintained, but power consumption increases
Solution Approach 1:
The patent implements periodic monitoring instead of continuous monitoring by utilizing DRX (Discontinuous Reception) cycles. The UE monitors for communication resumption at predetermined intervals defined by DRX parameters rather than continuously. This periodic approach maintains communication continuity reliability by detecting resumption signals at regular intervals while significantly reducing power consumption by allowing the receiver to remain in low-power states between monitoring intervals. The solution resolves the contradiction by transforming continuous energy-consuming monitoring into periodic low-power monitoring that achieves the same reliability goal.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish multiple wireless connections, such as a wireless connection for a first subscriber identity module (SIM) and a wireless connection for a second SIM, that share time-frequency resources. The UE may communicate data packets with another device during a communication session on the wireless connection for the first SIM. The UE may determine to pause the communication session for a duration based on receiving an indication from the other UE or based on a user input to pause communication. The UE may communicate data packets on the wireless connection for the second SIM for at least a portion of the duration using the shared time-frequency resources based on pausing the communication session.