Shared RAN Broadcast Service Using Primary TMGI Selection

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Solution Overview

Problem

In wireless communication systems with shared radio access networks (RAN) among multiple operators, the same broadcast data is transmitted multiple times, leading to resource wastage due to overlapping broadcasts.

Innovation Solution

A method and device that assign a primary temporary mobile group identity (TMGI) for broadcast services, determining which operator's data to prioritize for transmission, thereby reducing overlapping broadcasts and optimizing resource usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple operators transmit broadcast data through shared RAN, then broadcast service coverage is expanded, but resource wastage increases due to overlapping broadcasts

Engineering Contradiction:
Improvebroadcast service coverageVSAvoidresource wastage
Core Design Contradiction:
Area of stationary objectVSLoss of energy

Solution Approach 1:

Multiple operators merge their broadcast data transmission through a shared RAN by selecting a primary TMGI from a list of TMGIs, combining multiple broadcast streams into a single transmitted signal to eliminate overlapping broadcasts and reduce resource wastage

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The base station performs multiple functions by receiving broadcast data from multiple operators and selectively transmitting it based on the primary TMGI selection, enabling a single RAN node to serve multiple operators without redundant transmissions

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If a primary TMGI is selected for broadcast service, then resource usage is optimized, but service continuity may be affected if TMGI changes

Engineering Contradiction:
Improveresource usage efficiencyVSAvoidservice continuity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The network performs preliminary action by pre-configuring multiple TMGIs and establishing backup mechanisms before actual broadcast transmission, ensuring that if the primary TMGI changes, service continuity is maintained through pre-prepared alternative TMGIs

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where the network monitors broadcast transmission status and TMGI validity, allowing dynamic switching to backup TMGIs if the primary TMGI becomes invalid or changes, thus maintaining service continuity while optimizing resource usage

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4482179B1Method and device for providing broadcast service in wireless communication system
Publication Date: 2026.02.25 SAMSUNG ELECTRONICS CO LTD
  • EP4482179B1 patent drawingFigure 1
  • EP4482179B1 patent drawingFigure 2
  • EP4482179B1 patent drawingFigure 3

AI summary

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Specifically the present disclosure provides a method for providing broadcast service.