Gx Rule Detection of Service Data Flow Initiation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current Gx rules are limited in detecting the initiation of a service data flow, as they require specifying actions at the time of service flow definition, making it difficult for network operators to monitor and manage unknown applications and their resource consumption.
Innovation Solution
A Gx rule with a traffic classifier and a monitoring or notification directive is sent from the PCRF to the PCEF, allowing the PCEF to detect and report the initiation of a service data flow directly to an AF node, enabling network operators to monitor service flows without pre-defined actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current Gx rules are used for post-service-initiation events, then charging and subscriber bandwidth usage management can be performed, but detection of service data flow initiation is not possible
Solution Approach 1:
The Gx rule is transformed from a static post-service-initiation notification mechanism to a dynamic service data flow initiation detection mechanism. The rule now actively monitors and detects the start of service data flows, enabling real-time detection capabilities while maintaining the existing rule structure and deployment framework.
2Adaptability or versatility
If actions are specified at the time of service flow definition, then policy control can be enforced, but monitoring of unknown applications becomes difficult
Solution Approach 1:
The system performs preliminary configuration of Gx rules with monitoring directives before service data flows are initiated. This allows the PCEF to be pre-equipped with the capability to detect and report unknown applications, enabling flexible monitoring without requiring complex runtime rule configuration or pre-definition of all possible service flows.
3Loss of information
If PCEF reports service data flow initiation directly to AF node, then network operators can monitor unknown applications, but additional reporting infrastructure is required
Solution Approach 1:
The PCEF acts as an intermediary that receives Gx rules from the PCRF and directly reports service data flow initiation events to the AF node. This intermediary role enables information flow from detection to application function without requiring complex additional infrastructure, leveraging existing Gx interface components to bridge the reporting gap.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Methods, systems, and computer readable media for detecting a service data flow using a Gx rule are disclosed. According to one method, a policy and charging rules function (PCRF) node sends to a policy and charging enforcement function (PCEF) node, a Gx rule for triggering the PCEF node to generate a notification message upon initiation of a service data flow. The PCEF node receives and installs the Gx rule and uses the Gx rule to detect and report initiation of a service data flow.