Transmission Mode Switching for Wireless Communication Reliability
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Solution Overview
Problem
In wireless communication networks, devices often experience communication interruptions when moving out of cellular coverage or to the edge of a cell, as the current transmission mode may not be usable due to poor signal power or lack of network coverage, leading to a lack of practical solutions for switching to alternative transmission modes.
Innovation Solution
A method and apparatus for transmission mode conversion that allows devices to detect when the primary transmission mode is unusable and switch to a secondary mode, using a resource pool of communications resources allocated by the base station or inherent third communications resources, ensuring continuous data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal uses the current transmission mode (cellular communication mode) to send data, then the terminal can communicate through the base station when at the center of the cell, but when the terminal moves to the edge of the cell or out of network coverage, the transmission mode becomes unusable due to poor signal power or lack of coverage, resulting in communication interruption
Solution Approach 1:
The patent implements dynamic transmission mode switching that adapts to changing network conditions. The terminal dynamically selects between first transmission mode (cellular mode through base station) and second transmission mode (direct D2D mode) based on real-time detection of signal quality and network coverage status, ensuring continuous communication capability regardless of terminal position
Solution Approach 2:
The patent changes the transmission mode parameter based on detected network conditions. When the terminal detects that the first transmission mode is unusable (poor signal power or no coverage), it switches to the second transmission mode using different communication parameters (direct D2D resources instead of base station allocated resources), thereby maintaining communication reliability across varying environmental conditions
2Reliability
If the terminal switches to an alternative transmission mode when the current mode is unusable, then communication continuity is maintained, but the system complexity increases due to the need for mode detection and switching mechanisms
Solution Approach 1:
The patent employs feedback mechanisms where the terminal continuously monitors network conditions (signal power, coverage status) and uses this feedback to automatically trigger transmission mode switching. The detection unit provides real-time feedback on the usability of the first transmission mode, which automatically triggers the switching mechanism when degradation is detected, maintaining communication continuity through condition-based automated responses
Solution Approach 2:
The terminal performs self-service by autonomously detecting when the first transmission mode becomes unusable and automatically switching to the second transmission mode without requiring external control. The terminal independently monitors its own communication status and executes mode switching based on pre-defined conditions, reducing the need for complex external control systems while ensuring communication continuity
Data Source
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AI summary
A method and an apparatus for transmission mode conversion, the method includes: detecting, by a terminal, whether a first transmission mode for sending data can be used; using, by the terminal, a second transmission mode to send the data when detecting that the first transmission mode cannot be used; stopping, by the terminal, using of the second transmission mode to send the data, and using the first transmission mode to send the data, when detecting that the first transmission mode can be used while the terminal is using the second transmission mode to send the data. By adopting the present invention, conversion between different transmission modes can be achieved, thereby avoiding a situation of communications interruption when a current transmission mode cannot be used, and the method is practical.