Session Control for Per-NPN Identifier Session Limits
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Solution Overview
Problem
Conventional session control methods for non-public networks, such as Stand-alone Non-Public Network (SNPN) and Public Network Integrated Non-Public Network (PNI-NPN), suffer from large control granularity, lacking fine-grained management and control capabilities.
Innovation Solution
Implementing session control and charging methods that allow for per-non-public network identifier management by sending and receiving messages to update and check the number-of-sessions, enabling finer-grained control and charging based on session resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If cell-level session control is used in non-public networks, then the control scope is broad and simple to implement, but the control granularity is large and fine-grained management is not achieved
Solution Approach 1:
The patent segments the session control function by introducing a separate session control network element that independently manages session resources. This segmentation allows fine-grained control at the session level rather than cell level, resolving the contradiction between control granularity and system complexity by distributing control functions to specialized components.
Solution Approach 2:
The patent introduces a new dimension of control by adding session-level management alongside existing cell-level and user-level controls. This creates a multi-dimensional control framework where session resources can be independently managed, enabling fine-grained control without proportionally increasing overall system complexity.
2Manufacturing precision
If per-session control is implemented, then fine-grained management is achieved, but the system complexity and message processing overhead increase
Solution Approach 1:
The session control network element is designed with multi-functionality, handling session establishment, modification, release, and resource allocation uniformly. This universal approach to session management reduces system complexity by providing a single integrated control point rather than multiple specialized handlers for different session operations.
Solution Approach 2:
The session control network element acts as an intermediary between the access network and core network, managing session resources and coordinating control messages. This intermediary role simplifies the overall system architecture by centralizing session management functions and reducing direct interactions between other network elements.
Data Source
AI summary
This disclosure provides a session control method and apparatus, a charging method and apparatus, a communication device and a readable storage medium, and belongs to the field of communication technology. The session control method includes: a first communication device sends a first request message to a second communication device, the first request message including one or more non-public network identifiers and being used for requesting updating a number-of-sessions for each of the one or more non-public network identifiers; and receives a first response message from the second communication device, wherein the first response message includes first indication information, and the first indication information is used for indicating whether the number-of-sessions for each of the one or more non-public network identifiers reaches a corresponding first value.