5G MBS Session Configuration for Dual-Connectivity Handover
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Solution Overview
Problem
The challenge lies in unclear methods for configuring and managing multicast and broadcast services (MBS) in wireless communication systems, particularly in scenarios involving multi-radio dual connectivity and large bandwidths supported by 5G New Radio base stations.
Innovation Solution
A base station configures and manages radio resources for transmitting and receiving MBS data packets through unicast or multicast DRBs, using configuration parameters to facilitate MBS service delivery to UEs, and supports dual connectivity scenarios by managing handovers and PSCell changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multicast and broadcast services are implemented in 5G New Radio with large bandwidths, then service delivery capability is improved, but configuration and management methods remain unclear
Solution Approach 1:
The patent segments the MBS configuration into distinct components: MBS session configuration, radio bearer configuration, and resource allocation. This segmentation allows complex MBS deployment to be broken down into manageable steps, addressing the unclear configuration methods while maintaining high service delivery capability in 5G large bandwidth scenarios
Solution Approach 2:
The patent implements preliminary configuration actions during network setup, where the network node pre-configures MBS parameters, radio resources, and bearer settings before actual service delivery begins. This preliminary action approach clarifies the configuration process and enables efficient MBS deployment without complexity during runtime operation
2Adaptability or versatility
If dual connectivity scenarios are supported for MBS, then service availability is improved, but handover and PSCell change management becomes complex
Solution Approach 1:
The patent creates a universal handover management framework that handles both single-connectivity and dual-connectivity scenarios using the same procedural logic. This multi-functional approach maintains service availability across different connectivity modes while simplifying handover and PSCell change management through unified procedures
Solution Approach 2:
The patent implements feedback mechanisms during handover procedures where the network node continuously monitors service quality and connectivity status. This feedback enables dynamic adjustment of handover parameters and PSCell configurations, maintaining service availability while reducing management complexity through adaptive control
3Productivity
If MBS data packets are transmitted via unicast or multicast DRBs, then transmission efficiency is improved, but resource configuration requirements increase
Solution Approach 1:
The patent implements dynamic resource configuration where the network node can flexibly allocate radio resources for MBS based on actual traffic conditions and service requirements. This dynamic approach improves transmission efficiency by optimizing resource usage while reducing configuration requirements through adaptive parameter adjustment rather than static pre-configuration
Data Source
AI summary
A method in a base station for managing communication of multicast and/or broadcast services (MBS) includes causing (1402) establishment of a session for transmitting MBS data packets from a core network (CN) to a user equipment (UE). The method also includes transmitting (1404) configuration parameters associated with the session to the UE. Further, the method includes transmitting (1406) MBS data packets to the UE in accordance with the configuration parameters.