5G Multicast Session Invocation Across Service-Based Networks
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Solution Overview
Problem
Multicast services are unable to operate on a network using a service-based architecture based on network functions in 5G networks.
Innovation Solution
A method and apparatus for multicast service session operation are implemented, involving network functions such as AMF, SMF, MBSF, and MBPCF, to facilitate service invocations and operations, enabling multicast services to function on a service-based architecture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multicast services are provided based on network elements in traditional architecture, then multicast service operation is achieved, but the system cannot operate on 5G service-based architecture
Solution Approach 1:
The patent introduces network function descriptors as intermediaries that describe network functions in a service-based architecture. These descriptors enable multicast services to operate on 5G networks by providing a standardized interface between service consumers and network functions, resolving the incompatibility between traditional network element-based multicast and service-based architecture.
Solution Approach 2:
The patent changes the fundamental parameters of network function identification and interaction from traditional network element addresses to service-based descriptors with standardized interfaces. This parameter transformation enables multicast services to be discovered, selected, and invoked through service-based mechanisms rather than direct network element connections.
2Adaptability or versatility
If service-based architecture is adopted in 5G core network, then network flexibility and software-based functionality are improved, but multicast service operation becomes unavailable
Solution Approach 1:
The patent makes the network function descriptor mechanism universal by enabling any network function to be described and invoked through standardized descriptors. This universality allows multicast services to be deployed using the same service-based infrastructure already present in 5G core networks, eliminating the need for separate specialized deployment mechanisms.
3Ease of operation
If traditional network element-based multicast is used, then service operation is straightforward, but integration with 5G service-based architecture fails
Solution Approach 1:
The patent segments the multicast service operation into distinct functional components: service discovery, selector evaluation, and network function invocation. This segmentation allows each component to operate independently and integrates seamlessly with the service-based architecture, maintaining operational simplicity while achieving architecture compatibility.
Data Source
AI summary
Embodiments of the present invention provide a method and an apparatus for multicast service session operation and a communications device, where the method for multicast service session operation includes: receiving from a terminal a request including multicast service information; and sending a first invocation parameter to a second network function, where the first invocation parameter is used for invoking a multicast context service operation of the second network function.