Explicit UPF NEF Selection for NIDD Session Management
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Solution Overview
Problem
In communication systems, particularly in 5G networks, network functions face inefficiencies and establishment failures when managing Non-Internet Protocol Data Delivery (NIDD) sessions due to improper selection of mechanisms for data delivery, as they lack explicit selection methods between different mechanisms.
Innovation Solution
A method and apparatus for a network function that explicitly selects between User Plane Function (UPF) and Network Exposure Function (NEF) for establishing NIDD sessions based on session management data, including boolean indicators and specific identifiers, to improve efficiency and ensure proper mechanism selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network function manages NIDD session without explicit mechanism selection, then device complexity is reduced, but reliability deteriorates due to improper mechanism selection
Solution Approach 1:
The patent applies preliminary action by pre-configuring session management data that includes explicit indication information about the preferred mechanism (UPF or NEF) before the NIDD session establishment. This pre-configured data is retrieved and used during session setup, eliminating the need for real-time complex selection logic while ensuring reliable mechanism choice.
Solution Approach 2:
The network function performs self-service by automatically retrieving pre-configured session management data containing mechanism selection indications, and using this data to autonomously determine the appropriate mechanism (UPF or NEF) for NIDD session establishment without external intervention or complex decision-making.
2Reliability
If network function uses explicit mechanism selection based on session management data, then reliability improves, but ease of operation deteriorates due to additional data retrieval and processing steps
Solution Approach 1:
The mechanism selection logic is performed in advance during network configuration, where session management data is pre-populated with indication information. During actual session establishment, the network function simply retrieves this pre-prepared data, transforming a complex real-time decision problem into a simple data retrieval operation.
Solution Approach 2:
The patent introduces session management data as an intermediary that carries mechanism selection indications between the network function and the selected mechanism (UPF or NEF). This intermediary structure simplifies operation by pre-packaging all necessary selection information, eliminating the need for complex real-time queries or decisions during session establishment.
Data Source
AI summary
Embodiments of the present disclosure relates to a method and an apparatus for a network function managing NIDD session. The method comprises: receiving (S101) a request for establishing a NIDD session, wherein NIDD refers to non-internet protocol data delivery; and selecting (S102) a user plane function, UPF, or a network exposure function, NEF, for establishing the NIDD session. According to embodiments of the present disclosure, the selection between the different mechanisms for NIDD session may be configured explicitly. Thus, the efficiency of managing NIDD session is improved.