Terminal Device Unicast Multicast Mode Switching
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Solution Overview
Problem
Conventional communication systems lack an efficient mechanism for terminal devices to autonomously switch between unicast and multicast modes, and there is no dynamic switch between these modes, leading to inefficiencies in service delivery.
Innovation Solution
Implementing a method for terminal and network devices to dynamically switch between unicast and multicast modes through efficient signaling mechanisms, allowing terminal devices to autonomously determine switching conditions based on signal strength or packet reception ratios, and network devices to transmit switching information to facilitate mode changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If terminal devices use fixed service providing mode (unicast or multicast), then service delivery is simple to implement, but the system lacks adaptability to changing service demands and signal conditions
Solution Approach 1:
The patent implements dynamic switching between unicast and multicast service providing modes based on real-time signal conditions and service demands. The network device determines switching conditions (such as signal strength thresholds or packet reception ratios) and transmits switching information to terminal devices, enabling the system to adapt flexibly between different service modes rather than being fixed in one mode.
2Reliability
If terminal devices autonomously switch between unicast and multicast modes, then service continuity is improved, but the signaling mechanism becomes more complex
Solution Approach 1:
The patent introduces a signaling mechanism where the network device acts as an intermediary to manage the switching process. The network device determines switching conditions, generates switching information, and transmits it to terminal devices. This intermediary approach maintains service continuity while centralizing the complexity of switching logic in the network device rather than requiring complex autonomous decision-making at each terminal device.
3Loss of energy
If the system uses dynamic switching between unicast and multicast modes, then network overhead is reduced, but the mechanism for determining switching conditions becomes more complex
Solution Approach 1:
The patent implements self-service mechanisms where terminal devices autonomously measure their own signal conditions (such as signal strength or packet reception ratios) and compare them against predefined thresholds. The network device provides the switching conditions and thresholds, but the actual measurement and evaluation are performed by the terminal devices themselves, reducing network overhead while maintaining manageable complexity through clear, measurable parameters.
Data Source
AI summary
Embodiments of the present disclosure relate to methods, devices and computer readable media for communications. A method comprises receiving, at a terminal device and from a network device, a first message indicative of a switching condition for the terminal device to switch to a second service providing mode, the terminal device being served by the network device in a first service providing mode. The method further comprises: in accordance with a determination that the switching condition is satisfied, establishing a connection with the network device to be served by the network device in the second service providing mode. In this manner, a dynamic and efficient switching process between multicast mode and unicast mode can be autonomously triggered at the terminal device.