MUSIM Paging Pattern Coordination for Multi-USIM Message Services
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Solution Overview
Problem
Existing 5G networks struggle to efficiently manage message services on multiple universal subscriber identification module (MUSIM) user equipment (UE) with multiple USIMs, leading to potential conflicts and inefficiencies in paging patterns.
Innovation Solution
A method is introduced to calculate and determine priority-based paging patterns for each USIM, associating criticality and time or geographical location, and transmitting these patterns to a network access node for acceptance or rejection, with the option to configure policies by a policy control function or user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple USIMs are supported in a single UE, then user versatility and service coverage are improved, but paging pattern conflicts and network management complexity increase
Solution Approach 1:
The patent segments the paging management by creating separate paging patterns for each USIM card. The UE calculates and determines individual paging patterns for first USIM and second USIM based on their respective time occasions, allowing independent management of paging resources for each subscription while avoiding conflicts between them.
Solution Approach 2:
The patent implements dynamic paging pattern adjustment by allowing the network access node to evaluate received paging patterns and provide feedback on acceptance or rejection. The UE can then determine alternative paging patterns based on network feedback, creating a dynamic adaptation mechanism that resolves conflicts between multiple USIM paging requirements.
2Reliability
If priority-based paging patterns are implemented, then message service delivery is improved, but calculation and coordination overhead increases
Solution Approach 1:
The patent applies preliminary action by pre-determining priority rankings for different message services associated with each USIM before actual paging occurs. The UE calculates time occasions and determines paging patterns based on these pre-established priorities, ensuring that high-criticality services receive appropriate paging attention without requiring complex real-time decisions during paging events.
3Productivity
If paging patterns are transmitted to network for acceptance/rejection, then network control and optimization are improved, but signaling overhead and latency increase
Solution Approach 1:
The patent implements feedback mechanisms where the network access node receives paging patterns from the UE and provides explicit acceptance or rejection feedback. This feedback loop allows the network to optimize paging pattern allocation while giving the UE clear guidance on whether its proposed patterns are acceptable, enabling efficient iteration if initial patterns are rejected.
Data Source
AI summary
A method for managing message services on a multiple universal subscriber identification module (MUSIM) user equipment (UE) having at least a first USIM and a second USIM includes calculating a first time occasion that message services related to the first USIM are used, and a second time occasion that the message services related to the second USIM are used; determining a first paging pattern based on the first time occasion and a second paging pattern based on the second time occasion; transmitting, to a network access node, the first paging pattern and the second paging pattern; and receiving, from the network access node, a message indicating acceptance or rejection of the first paging pattern, and acceptance or rejection of the second paging pattern.