SCEF MBMS Group Identifier Allocation for 5G UE Messaging
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Solution Overview
Problem
In the context of 5G communication systems, there is a need for efficient methods to transmit group messages to multiple user equipment (UEs) while optimizing resource use, particularly in scenarios involving multimedia broadcast multicast services (MBMS) where activating an MBMS bearer is required.
Innovation Solution
A method and apparatus for a wireless network that involves transmitting a request message to request the allocation of an MBMS group identifier from a service capability server/application server to a service capability exposure function, including an external group identifier and an SCS/AS identifier, and receiving a response message with the MBMS group identifier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MBMS services are used to transmit group messages to multiple UEs, then resource use efficiency is improved, but the complexity of activating and managing MBMS bearers increases
Solution Approach 1:
The patent introduces a service capability exposure function (SCEF) as an intermediary between the application server and the MBMS bearer management system. The SCEF receives requests from application servers for group message transmission, automatically manages the MBMS bearer activation process, and coordinates with the MBMS gateway. This intermediary abstracts the complex bearer activation procedures from application servers, allowing them to simply request group message transmission while the SCEF handles the technical complexities of MBMS bearer setup, modification, and teardown automatically.
2Productivity
If group messages are transmitted using MBMS to multiple UEs, then transmission efficiency is improved, but the difficulty of managing group identifier allocation increases
Solution Approach 1:
The patent implements a self-service mechanism where the SCEF automatically manages MBMS group identifier allocation and lifecycle. When an application server sends a group message transmission request, the SCEF automatically checks for existing MBMS bearers matching the external group identifier, creates new bearers if needed, retrieves internal MBMS group identifiers from the MBMS gateway, and manages bearer teardown after transmission. This self-service automation eliminates the need for application servers to manually manage complex identifier allocation and bearer lifecycle, reducing management difficulty while maintaining efficient group message transmission.
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method and apparatus of a wireless network are disclosed. The method includes transmitting a first request message to request allocation of a multimedia broadcast multicast service (MBMS) group identifier from a service capability server/application server (SCS/AS) to a service capability exposure function (SCEF), the first request message including an external group identifier and an SCS/AS identifier, and receiving a first response message including the MBMS group identifier from the SCEF to the SCS/AS.