TMGI Update for Shared 5G Broadcast Resource Overlap
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently providing broadcast services across shared networks, particularly in scenarios where multiple operators share the same New Generation Radio Access Network (NG-RAN), leading to overlapping resource usage and inefficiencies in broadcast data transmission.
Innovation Solution
The method involves updating the primary Temporary Mobile Group Identity (TMGI) in a shared NG-RAN environment to reduce resource overlap and ensure continuous broadcast service delivery by selecting a new TMGI when the primary one is no longer valid or resource allocation fails, allowing for seamless service transition between operators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple operators share the same NG-RAN for broadcast services, then network resource utilization is improved, but resource overlap and transmission inefficiency occur
Solution Approach 1:
The patent segments the broadcast service resources by introducing operator-specific TMGI identifiers. Each operator is assigned a unique TMGI (Temporary Mobile Group Identity) prefix, which divides the shared NG-RAN resources into operator-specific logical channels. This segmentation prevents resource overlap while maintaining physical network sharing, allowing multiple operators to efficiently utilize the same infrastructure without transmission conflicts.
2Productivity
If the primary TMGI is updated to reduce resource overlap, then transmission efficiency is improved, but service continuity may be affected
Solution Approach 1:
The patent implements preliminary action by establishing a predefined TMGI allocation scheme before resource conflicts occur. Each operator is pre-assigned a unique TMGI prefix based on their operator ID. When a broadcast service is initiated, the system automatically selects the appropriate TMGI based on the operator identity, preventing resource overlap before it happens. This preliminary configuration ensures both transmission efficiency and service continuity without requiring reactive TMGI changes.
Solution Approach 2:
The system incorporates feedback mechanisms where the AMF (Access and Mobility Management Function) monitors TMGI usage and detects potential conflicts. When resource overlap is detected or predicted, the AMF provides feedback to update the TMGI allocation, ensuring optimal resource utilization while maintaining service continuity. This closed-loop control allows dynamic adaptation to changing network conditions.
3Productivity
If TMGI updating mechanism is implemented, then resource allocation efficiency is improved, but system complexity increases
Solution Approach 1:
The patent implements self-service by enabling the system to automatically manage TMGI allocation without manual intervention. The AMF autonomously assigns TMGIs based on operator identities and service requirements, and the system automatically detects and resolves resource conflicts. This self-service capability simplifies the overall system architecture by eliminating the need for complex manual configuration and coordination mechanisms, reducing operational complexity while maintaining high resource allocation efficiency.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a base station in wireless communication system, the method comprising: identifying a second temporary mobile group identity (TMGI) which is different from a first TMGI for a broadcast service, and transmitting, to an access and mobility function (AMF), information on the second TMGI, and receiving, from the AMF, information on a broadcast session allocated by the MB-SMF (multicast/broadcast-session management function) based on the information on the second TMGI, receiving, from MB-UPF, broadcast data for broadcasting to user equipment (UE).