PFD Coordination Between NWDAF and NEF to Prevent Data Duplication
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Solution Overview
Problem
There is no effective solution to the duplication of packet flow description (PFD) information output by the network data analytics function (NWDAF) to the network exposure function (NEF) with the PFD information sent by the application function (AF) to the NEF.
Innovation Solution
Implementing methods and apparatuses for communication that involve receiving and processing PFD information by application functions (AF) or network functions (NF) to request and transmit PFD information to network elements, including network exposure functions (NEF) and unified data repository functions, to manage and process PFD information effectively, thereby avoiding duplication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the network data analytics function outputs PFD information to the network exposure function, then data analytics capability is improved, but information duplication occurs with application function data
Solution Approach 1:
The network exposure function acts as an intermediary between the application function and the network data analytics function. It receives PFD information from both sources and processes it through a subscription-based mechanism, delivering consolidated information to the application function while preventing duplication. The intermediary filters and reconciles data from multiple sources before delivery.
Solution Approach 2:
The system implements a subscription-based feedback mechanism where the application function subscribes to PFD information from the network data analytics function. The network exposure function monitors subscriptions and only delivers information that is actually requested, creating a feedback loop that prevents unnecessary data transmission and duplication.
2Productivity
If PFD information is transmitted from network data analytics function to network exposure function, then network data analytics is enhanced, but data redundancy increases
Solution Approach 1:
The network exposure function extracts only the necessary PFD information that application functions have subscribed to receive. It separates essential data from redundant information, selectively transmitting only what is needed based on active subscriptions, thereby reducing overall data redundancy while maintaining analytics capabilities.
Solution Approach 2:
The network exposure function performs multiple functions: it receives PFD information from the network data analytics function, processes subscription requests from application functions, reconciles data, and delivers consolidated information. This multi-functionality consolidates data flow paths and reduces redundancy by handling multiple operations at a single function point.
Data Source
AI summary
A communication method and apparatus, and a communication device and a computer storage medium are provided. The method includes: an application function (AF) or a network function (NF) receiving first information from a network data analytics function, wherein the first information comprises first packet flow description (PFD) analysis information and/or first PFD information corresponding to a first application identifier; and sending second information to a first network element, wherein the second information is used for requesting the processing of the PFD information corresponding to the first application identifier, and the processing comprises at least one of creation, updating and deletion.