RAN Node Interaction Assistance for Multicast Tunnel Management
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Solution Overview
Problem
The existing communication network technologies face complex interaction operations between core network functions when establishing or releasing shared tunnels for multicast services, leading to unnecessary signaling interactions between Access Management Function (AMF) and Multicast and Broadcast Session Management Function (MB-SMF).
Innovation Solution
The proposed solution involves the Radio Access Network (RAN) node sending interaction assistance information to the core network functions to assist in invoking or rejecting multicast and broadcast service management or session management operations, thereby optimizing the interaction processes by reducing unnecessary signaling interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the AMF invokes MB-SMF service operations for shared tunnel establishment/release, then multicast service management is achieved, but signaling interaction complexity increases
Solution Approach 1:
The patent extracts the multicast service management functionality from the MB-SMF and relocates it to the RAN node. The RAN node directly establishes and releases shared tunnels for multicast services without requiring AMF to invoke MB-SMF service operations, thereby eliminating complex core network signaling interactions while maintaining reliable multicast service management at the access network level
Solution Approach 2:
The RAN node is empowered to autonomously perform shared tunnel establishment and release operations for multicast services. By enabling the RAN node to self-manage these functions using local configuration and decision-making capabilities, the system eliminates the need for repeated AMF-MB-SMF signaling interactions, reducing overall network signaling complexity while maintaining service reliability
2Adaptability or versatility
If multiple core network functions interact for shared tunnel management, then service management completeness is improved, but interaction frequency increases
Solution Approach 1:
The patent segments the multicast service management responsibilities by function and network layer. The RAN node handles shared tunnel establishment and release operations locally, while the core network retains overall service management authority. This segmentation allows the system to maintain complete service management capabilities through distributed intelligence, reducing the frequency of inter-function signaling interactions and improving overall interaction efficiency
Data Source
AI summary
An information control method and apparatus, a network function device, a chip, a computer program product, and a readable storage medium. The information control method of the embodiments of this application includes: sending, by a radio access network (RAN) node, interaction assistance information to a first core network function, where the interaction assistance information is used to assist the first core network function in invoking information related to multicast and broadcast service management or session management to a second core network function, or the interaction assistance information is used to assist the first core network function in rejecting to invoke information related to the multicast and broadcast service management or session management to the second core network function.