IMS Tagging for Connection Differentiation in Wireless Networks
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Solution Overview
Problem
Current systems face challenges in differentiating between Internet Protocol (IP) Multimedia Subsystem (IMS) connections and non-IMS connections, which can lead to issues such as improper handling of data packets and prioritization of traffic, especially in scenarios involving multiple radio access technologies and subscriber identity modules with varying IMS service capabilities.
Innovation Solution
The implementation of an IMS tagging mechanism that assigns tags to traffic flow identifiers to differentiate between IMS and non-IMS connections, allowing for appropriate handling and prioritization of data packets based on these tags, utilizing a data plane manager and Non-Access Stratum components to manage and process these connections effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If IMS tagging mechanism is implemented to differentiate between IMS and non-IMS connections, then traffic management precision and packet handling accuracy are improved, but device complexity and system configuration complexity increase
Solution Approach 1:
The system performs preliminary tagging of Packet Data Network (PDN) connections as IMS or non-IMS connections during the connection establishment phase. This preliminary classification enables downstream components to efficiently differentiate and handle packets without requiring complex real-time analysis, thus improving measurement precision while managing device complexity through advance preparation
Solution Approach 2:
The patent introduces an IMS tag as an intermediary marker that is assigned to traffic flow identifiers. This tag acts as a simple mediator that enables differentiation between IMS and non-IMS connections without requiring complex inspection mechanisms, thereby improving connection differentiation accuracy while maintaining relatively simple system architecture
2Adaptability or versatility
If multiple radio access technologies are supported simultaneously, then system versatility and service coverage are improved, but difficulty in managing and differentiating connections increases
Solution Approach 1:
The patent segments the connection management by introducing distinct IMS tags for different connection types (IMS and non-IMS) across multiple radio access technologies. This segmentation allows each connection to be independently identified and managed based on its service type, thereby supporting multi-RAT versatility while simplifying the management of diverse connections through clear classification
Solution Approach 2:
The IMS tagging mechanism is designed as a universal solution that can be applied across multiple radio access technologies (LTE, NR, etc.). The same tagging approach works consistently for different RATs, providing a multi-functional framework that enhances system versatility while avoiding the need for technology-specific differentiation mechanisms, thus managing connection complexity efficiently
Data Source
AI summary
Some demonstrative embodiments include devices, systems and methods of differentiating between an Internet Protocol (IP) Multimedia Subsystem (IMS) connection and a non-IMS connection. For example, a UE may include a communication module configured to receive from an application a request to establish a Packet Data Network (PDN) connection, and to assign an IMS tag to a traffic flow identifier of the PDN connection, wherein the IMS tag indicates that the PDN connection is an IMS connection or a non-IMS connection. The communication module may be configured to receive from the application a request to handle data packets having the traffic flow identifier, and to process the request to handle the data packets based on the IMS tag assigned to the traffic flow identifier.