MUSIM Message Routing via Priority-Based Policy Rules
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Solution Overview
Problem
Current 5G networks face challenges in managing message services on multiple universal subscriber identification module (USIM) user equipment (UE) with multiple network associations, lacking an efficient method to prioritize and route messages based on service criticality and network preferences.
Innovation Solution
A method is introduced to assign priority-based rankings to message services associated with each USIM, setting policy rules based on these rankings, and communicating these rules to network access nodes to determine service preferences and route messages accordingly, preventing lower-priority services from communicating on certain networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple USIMs are supported in a single device, then network coverage and service availability are improved, but message service management complexity and communication conflicts increase
Solution Approach 1:
The patent segments message services into different priority levels (high priority and low priority) and applies different handling rules to each segment. High priority message services are allowed to communicate without restriction, while low priority message services are blocked when high priority services are active, thereby simplifying the management complexity while maintaining multi-network adaptability
Solution Approach 2:
The patent establishes policy rules in advance that define the priority relationships between different message services before communication conflicts occur. These pre-configured rules automatically determine which services are allowed to communicate based on their priority levels, eliminating the need for complex real-time decision-making mechanisms
2Productivity
If all message services are allowed to communicate simultaneously, then service availability is improved, but communication interference and service quality degradation occur
Solution Approach 1:
The patent applies preliminary anti-action by proactively blocking low priority message services when high priority message services are detected to be communicating. This preventive measure eliminates potential communication interference before it can occur, ensuring that high priority services maintain their quality without degradation
Solution Approach 2:
The patent applies different communication policies to different message services based on their local characteristics (priority levels). High priority services receive unrestricted access to maintain quality, while low priority services are selectively blocked to prevent interference, thereby optimizing overall service quality without completely sacrificing availability
Data Source
AI summary
A method of routing messages services in a wireless communication system in cooperation with an Access Mobility and Management Function (AMF) includes receiving, from a multiple universal subscriber identification module (MUSIM) user equipment (UE) having at least a first USIM and a second USIM, and a policy rule and the AMF routing a first message associated to a first network to the first USIM, and a second message associated to a second network to the second USIM based on the policy rule. The policy rule specifies service preferences of the message services. The method might also include determining a first paging occasion for the first message; embedding the service preference of the first message in the first paging occasion; determining a second paging occasion for the second message; and embedding the service preference of the second message in the second paging occasion.