Multicast Broadcast Session Continuity During MBS Area Update Failure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G mobile communication systems, updating MBS service areas for established multicast/broadcast sessions can fail, leading to service discontinuity, and there is a need for ensuring service continuity in such failures.
Innovation Solution
A communication method and apparatus that triggers the establishment of a multicast/broadcast session for a service when the update of an MBS service area fails, using network resource management entities or network capability exposure functions to manage session updates and ensure service continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the MBS service area is updated for an established multicast/broadcast session, then the service can be provided in the new service area, but the update may fail leading to service discontinuity
Solution Approach 1:
The patent applies preliminary action by triggering the establishment of a new multicast/broadcast session in advance when the service area needs to be updated, before the old session is terminated. This ensures that service continuity is maintained by having a ready session in the new service area, preventing service discontinuity during the transition.
Solution Approach 2:
The patent applies local quality by allowing different sessions to serve different service areas simultaneously. The old session continues to serve the original service area while the new session is established for the new service area, enabling localized service provision without forcing a global update that could cause failure.
2Productivity
If direct triggering by network resource management entity is used, then communication overheads are reduced and efficiency is improved, but system complexity increases
Solution Approach 1:
The patent applies universality by designing the network resource management entity to perform multiple functions: it既可以 trigger session establishment directly (reducing overhead), can also interact with application layer service entities (maintaining flexibility), and can make intelligent decisions about when to apply each approach based on the specific scenario.
Data Source
AI summary
This application provides a communication method and apparatus, relating to the field of communication technologies. In the method, when update of an MBS service area of a service for which a multicast/broadcast session has been established to a first service area fails, an MBS device can also trigger continuation of establishing a multicast/broadcast session for the service, allowing a subsequently established multicast/broadcast session to provide the service for the first service area. In this way, continuity of the service can still be ensured when the update of the MBS service area fails.