Application Server Multicast Session Management
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Solution Overview
Problem
Current protocols lack specifications for efficiently using multicast broadcast service sessions to transmit data, leading to resource wastage and potential packet loss due to unclear conditions for activating and deactivating these sessions.
Innovation Solution
A method where an application server obtains and analyzes information about terminal connections and session states within a multicast broadcast service session to determine optimal conditions for transmitting service data, including thresholds for terminal connections and session states, to ensure efficient and flexible data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If multicast broadcast service session is used to transmit data to multiple terminals, then resource utilization efficiency is improved, but packet loss may occur when terminals are in idle state
Solution Approach 1:
The patent implements dynamic switching between unicast and multicast transmission modes based on terminal connection states. When terminals are in connected state, multicast mode is used for efficient resource utilization. When terminals transition to idle state, the system dynamically switches to unicast mode to ensure reliable delivery, thus resolving the contradiction between resource efficiency and packet loss prevention
Solution Approach 2:
The patent changes the transmission parameter (unicast vs multicast) based on the terminal's connection state parameter. By monitoring whether terminals are in connected or idle state, the system adjusts the transmission mode accordingly, allowing efficient multicast transmission when appropriate and reliable unicast transmission when needed
2Adaptability or versatility
If multicast broadcast service session is activated for all terminals, then service coverage is improved, but resource wastage occurs when few terminals are actually receiving data
Solution Approach 1:
The patent applies different transmission strategies to different terminals based on their individual connection states. Connected terminals receive data through efficient multicast sessions, while idle terminals receive data through targeted unicast transmission. This localized adaptation prevents resource wastage by avoiding unnecessary multicast transmissions when few terminals are actively receiving
Solution Approach 2:
The system dynamically determines the appropriate transmission mode for each terminal based on real-time connection state information. This dynamic approach ensures service coverage is maintained for all terminals while avoiding resource wastage by only activating multicast sessions when multiple terminals are in connected state
Data Source
AI summary
This application provides a service data transmission method and a communication apparatus. The method includes: An application server obtains first information of a multicast broadcast service session; and the application server sends data of a service over the multicast broadcast service session based on the first information. In the foregoing technical solution, the application server may determine, based on related information (for example, information of a terminal in the multicast broadcast service session, or information of the multicast broadcast service session) of the multicast broadcast service session, that the data of the service can be transmitted over the multicast broadcast service session. In this way, the data of the service can be transmitted flexibly over the multicast broadcast service session.