Broadcast Service Interest Indication for 5G UE Mobility
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G, face challenges in maintaining uninterrupted broadcast services during user equipment (UE) mobility, as they lack seamless handover mechanisms for multicast broadcast services (MBS) between cells, leading to service disruptions.
Innovation Solution
The method involves a UE transmitting a broadcast service interest indication to its serving cell to facilitate continuous MBS reception during mobility, allowing the serving cell to schedule communications and handover to cells supporting the desired broadcast service, ensuring uninterrupted service by identifying and switching to suitable target cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a UE moves between cells in a wireless communication system, then the UE can access different network areas, but broadcast service continuity is lost during handover
Solution Approach 1:
The UE transmits a broadcast service interest indication to the serving cell before actually losing broadcast service coverage. This preliminary notification allows the network to prepare handover procedures in advance, identifying target cells that support the desired broadcast service and scheduling the handover before service disruption occurs, thus maintaining broadcast service continuity during UE mobility.
2Reliability
If the network implements comprehensive handover support for broadcast services, then service continuity improves, but network complexity increases
Solution Approach 1:
The UE autonomously initiates the broadcast service handover process by transmitting a broadcast service interest indication to the serving cell when mobility is detected. This self-service approach shifts the initiation responsibility to the UE rather than requiring complex network-driven handover management, simplifying network procedures while maintaining service continuity.
Solution Approach 2:
The UE provides feedback to the network about its broadcast service interests and mobility status through the broadcast service interest indication. This feedback mechanism enables the network to make informed decisions about handover scheduling and target cell selection, achieving service continuity through a relatively simple feedback-driven approach rather than complex predictive algorithms.
Data Source
AI summary
Aspects described herein relate to communicating with one or more cells for receiving a broadcast service, and providing broadcast service continuity in device mobility scenarios. In some aspects, a user equipment (UE) can transmit a broadcast service interest indication to a serving cell to facilitate receiving the broadcast service during mobility to provide the broadcast service continuity.