Base Station MBS Service Identifier for Multi-PLMN Resource Sharing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 3GPP technical specifications do not provide a mechanism for efficient multicast broadcast services (MBS) delivery using common radio resources across multiple core networks in a 5G mobile communication system, leading to difficulties in optimizing radio resource usage.
Innovation Solution
A communication control method and base station architecture that allow for the sharing of MBS data transmission using common radio resources across multiple Public Land Mobile Networks (PLMNs) by employing unique MBS service identifiers and control information, enabling efficient MBS delivery through multicast or broadcast techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If MBS data is transmitted using separate radio resources for each core network, then service reliability is improved, but radio resource usage increases
Solution Approach 1:
The patent merges MBS data transmission from multiple core networks into a single unified transmission using common radio resources. The base station receives MBS data from multiple core networks and transmits it through a single multicast or broadcast channel, combining what would otherwise be separate transmissions into one efficient operation that reduces radio resource consumption while maintaining service reliability
Solution Approach 2:
The base station is designed to handle MBS data from multiple different core networks using a universal transmission mechanism. A single radio resource configuration serves multiple PLMNs simultaneously, making the transmission system multi-functional and adaptable to different core network sources without requiring dedicated resources for each
2Productivity
If common radio resources are used for MBS transmission across multiple PLMNs, then radio resource efficiency is improved, but service differentiation capability deteriorates
Solution Approach 1:
The patent segments the identification and control layers while maintaining unified transmission. Each PLMN's MBS service is identified through distinct service identifiers (TMGI, MBS session ID) and controlled through PLMN-specific parameters, allowing the system to differentiate services logically while physically transmitting over shared radio resources efficiently
3Adaptability or versatility
If separate transmissions are used for each core network, then service customization is improved, but backhaul communication resource usage increases
Solution Approach 1:
The patent merges multiple MBS data streams from different core networks into a single transmission path at the base station. Instead of maintaining separate backhaul connections and transmissions for each PLMN, the system consolidates data flow, reducing backhaul communication resource consumption while preserving the ability to customize services through identification and control mechanisms
Data Source
AI summary
A communication control method used in a mobile communication system includes receiving, at a base station shared by a plurality of core networks from each of the plurality of core networks, an MBS service identifier indicating an MBS service provided by the corresponding one of the plurality of core networks; and transmitting, at the base station, MBS data belonging to the MBS service to a plurality of user equipments belonging to a plurality of Public Land Mobile Networks (PLMNs) corresponding to the plurality of core networks through multicast or broadcast. The MBS service identifier is a unique identifier independent of the plurality of PLMNs.