Multi-SIM RF Resource Prioritization for URLLC Latency
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Solution Overview
Problem
In electronic devices supporting multiple SIMs, particularly in DSDS mode, there is a risk of delay in URLLC service due to the sharing of RF resources without priority, leading to potential delays in data packet processing for SIMs providing ultra-reliable and low-latency communications.
Innovation Solution
The electronic device prioritizes RF resource allocation for data packet processing associated with a specific SIM, deferring operations for other SIMs when a data packet processing request is made for the URLLC service, by establishing and managing PDU sessions based on network slice types and using stored information to preferentially process data packets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RF resources are shared among multiple SIMs in DSDS mode without priority, then device complexity is reduced and ease of operation is improved, but reliability of URLLC service deteriorates due to potential delays in data packet processing
Solution Approach 1:
The patent applies local quality by differentiating treatment based on network slice type. URLLC services (with low-latency requirements) receive preferential RF resource allocation compared to other services. The system identifies network slice types and applies different priority levels accordingly, ensuring that critical URLLC data packets are processed with higher reliability while other services share resources normally.
Solution Approach 2:
The patent changes the parameter of priority level based on network slice type. By identifying whether a data session corresponds to URLLC service through network slice type identification, the system dynamically adjusts the priority parameter for RF resource allocation. This allows the same RF hardware to provide differentiated service levels without requiring separate hardware for each service type.
2Reliability
If RF resources are allocated with priority to URLLC services, then reliability of URLLC service is improved, but device complexity increases due to need for priority management mechanisms
Solution Approach 1:
The patent applies universality by using the existing network slice type identification mechanism for dual purposes: both network resource allocation and RF priority management. The same PDU session information and network slice type data used for general data session management are leveraged to determine RF processing priority, eliminating the need for separate complex priority management systems.
Solution Approach 2:
The system performs self-service by automatically identifying URLLC services through network slice type information already present in the data session setup. The processor uses existing PDU session establishment information and network slice type data to automatically determine priority levels without requiring external intervention or complex manual configuration, reducing operational complexity.
3Productivity
If data packet processing for one SIM is deferred to share RF resources, then productivity for other services is improved, but loss of time for URLLC service increases
Solution Approach 1:
The patent applies preliminary action by pre-identifying network slice types and pre-determining priority levels during the PDU session establishment phase. The system stores network slice type information and uses it in advance to configure RF processing priorities, so that when data packets arrive, the priority handling is already prepared and can be executed immediately without additional processing delay.
Data Source
AI summary
According to various embodiments, an electronic device may comprise at least one processor, and an RF circuit configured to process a data packet associated with a first SIM connected to the at least one processor and a data packet associated with a second SIM connected to the at least one processor. The at least one processor may be configured to: establish a first PDU session corresponding to the first SIM, establish a second PDU session corresponding to the second SIM, store first information for the first PDU session, based on a network slice type of the first PDU session being a specified first type, and process a first data packet associated with the first SIM using the RF circuit while deferring execution of an operation associated with the second SIM based on a processing request for the first data packet associated with the first SIM corresponding to the stored first information.