Core Network Switching Between Unicast and Multicast Modes
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Solution Overview
Problem
Existing wireless communication systems lack clear methods for switching between unicast and multicast transmission modes, affecting data transmission efficiency.
Innovation Solution
A method involving a core network element that transmits indication information to a user plane function (UPF) and a radio access network (RAN) to manage the switching of data transmission modes, including establishing shared channels for multicast data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If unicast transmission mode is used, then data transmission can be established for individual terminal devices, but network resources are consumed inefficiently when multiple terminals receive the same data
Solution Approach 1:
The patent implements dynamic switching between unicast and multicast transmission modes based on real-time network conditions and terminal device support. The core network element determines the appropriate transmission mode by evaluating whether terminal devices support multicast and switching between unicast and multicast as needed, optimizing network resource utilization while ensuring reliable data delivery.
2Loss of energy
If multicast transmission mode is used, then network resources are saved when multiple terminals receive the same data, but clear switching methods between unicast and multicast modes are lacking
Solution Approach 1:
The patent segments the transmission mode switching process into distinct functional stages: the core network element determines multicast support by terminal devices, selects the appropriate transmission mode, and executes the switching. This segmentation provides clear switching methods between unicast and multicast modes, reducing system complexity while enabling efficient resource utilization.
Solution Approach 2:
The patent implements feedback mechanisms where the core network element determines whether terminal devices support multicast transmission and uses this information to select the appropriate transmission mode. The system continuously monitors network conditions and terminal capabilities, providing feedback-driven dynamic switching between unicast and multicast modes to optimize resource efficiency.
3Productivity
If transmission mode switching is implemented, then data transmission efficiency is improved, but clear methods for switching between modes are not established
Solution Approach 1:
The patent enables the core network element to automatically determine whether terminal devices support multicast transmission and autonomously select the appropriate transmission mode without requiring manual intervention. The system performs self-service transmission mode switching by evaluating network conditions and terminal capabilities, improving data transmission efficiency while maintaining ease of operation through automated decision-making.
Data Source
AI summary
The present application refers to a method for switching transmission mode and a core network element. The method includes: a core network element sends first indication information to a user plane function entity, the first indication information being used to indicate to send, to a shared channel, multicast data corresponding to a terminal device; and the core network element sends second indication information to an access network element, the second indication information being used to indicate the multicast data.