Enhancements to IMS service functionalities facilitating multicast bearer services
This study analyzes the feasibility and applicability of using multicast bearers (e.g. MBMS) in the context of IMS-based applications.
This study item captures the results of the technical considerations and solutions for transporting IMS services over multicast bearers with a focus on the possible enhancements to IMS functionalities and relevant charging, security and service provision procedures.
A brief summary of considerations include:
- Signalling procedures of multicast enabled IMS services should be analyzed based on the grouped communication scenarios and possible optimisations to the delivery mechanisms should be investigated.
- Charging and policy control procedures according to the PCC architecture.
- Service provision procedures both in network elements and UEs.
- Possible security requirements to multicast enabled IMS functionalities and bearer service entities.
- Real-time QoS requirements e.g. delay , interruption.
- UE capability requirements.