MBMS Switching With Public Forwarding Channels for Handover Continuity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The 4G MBMS technology restricts multimedia broadcast service data packet transmission by allowing only static cell switching, leading to interrupted and delayed data packet transmission when a UE switches between network nodes.
Innovation Solution
A method and apparatus for establishing a public forwarding channel between network nodes using a switching request message with a public forwarding channel establishment indication, enabling seamless data packet transmission continuity and reduced interruption during UE handovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a UE switches from one network node to another network node using static cell switching, then the UE can receive MBMS bearers of interest, but the transmission of MBMS service data packets is restricted and interrupted with delays
Solution Approach 1:
The source network node forwards MBMS service data packets to the target network node before the UE completes the handover switching. This preliminary forwarding action ensures that when the UE switches to the target network node, the data packets are already available, eliminating transmission interruptions and delays while maintaining service continuity
Solution Approach 2:
The source network node acts as an intermediary by temporarily holding and forwarding MBMS service data packets to the target network node during the handover process. This intermediary role ensures seamless data transmission continuity across network node transitions without requiring direct UE involvement in the forwarding mechanism
Data Source
AI summary
The present application relates to an MBMS service-based switching method and apparatus, and a computer-readable storage medium, the method comprises: sending a switching request message to a second network node, the switching request message includes a public forwarding channel establishment indication; receiving a switching response message and a switching command message respectively sent by the second network node, the switching response message includes a public forwarding channel address; sending the switching command message to a User Equipment (UE) according to the switching response message; and establishing a public forwarding channel with the second network node according to the public forwarding channel address, the public forwarding channel being used for the first network node to forward MBMS service data packets sent to the UE to the second network node.