IMS Session Priority Mapping by Subscriber Category and Network Slice
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Solution Overview
Problem
Existing multimedia priority service (MPS) mechanisms in IMS networks fail to provide granular control by not considering the subscriber category and data network slice of User Equipment (UE), leading to inefficient allocation of network resources and unnecessary depletion.
Innovation Solution
Implementing systems and methods that assign transport priorities to signaling messages and sessions based on the subscriber category and data network slice of UEs, enabling differentiated resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If uniform priority assignment is applied to all MPS subscribers, then network resource allocation is simplified, but granular control over different subscriber categories and network slices is lost
Solution Approach 1:
The patent applies local quality by assigning different priority levels to different subscriber categories and network slices. Instead of uniform priority treatment, the system distinguishes between critical and non-critical traffic based on subscriber category and network slice characteristics, enabling granular control while maintaining manageable complexity through structured priority mapping.
Solution Approach 2:
The patent segments the MPS subscriber base into different categories (e.g., emergency services, government, commercial) and network slices, each with distinct priority assignments. This segmentation enables fine-grained resource allocation while organizing the complexity into manageable categories that can be systematically managed.
2Reliability
If high priority is assigned to all MPS sessions, then critical communications are ensured, but network resources are unnecessarily depleted
Solution Approach 1:
The patent ensures critical communications receive high priority treatment while preventing resource waste by applying different priority levels to different subscriber categories and network slices. Critical services maintain guaranteed quality, while non-critical traffic receives appropriate but lower priority, optimizing resource utilization.
Solution Approach 2:
The patent changes the priority parameter dynamically based on subscriber category and network slice characteristics. By mapping different subscriber categories to different priority levels, the system ensures critical communications are prioritized while allowing non-critical traffic to consume resources appropriately, preventing unnecessary depletion.
3Adaptability or versatility
If subscriber category and network slice information is collected and processed, then granular control is achieved, but system complexity increases
Solution Approach 1:
The patent performs preliminary action by pre-configuring priority mappings for different subscriber categories and network slices before traffic occurs. The system stores priority information in advance, enabling quick lookup and application during traffic handling without complex real-time processing, thus achieving granular control with manageable complexity.
Solution Approach 2:
The patent introduces an intermediary mechanism that handles the complexity of information processing. By using predefined priority mappings and category-based routing, the system intermediates between the need for granular control and the complexity of processing, enabling fine-grained resource allocation through structured lookup tables and policy frameworks.
Data Source
AI summary
A device may comprise a processor. The processor may be configured to: receive, from a User Equipment device (UE), a registration request; obtain Multimedia Priority Service (MPS) policy parameters for the UE in response to the registration request; receive, from the UE, a request to establish a session; set a priority of a message to be sent to establish the session, based on the MPS policy parameters; and send the message to establish the session.