5G NR-V2X Terminal Transmission Mode Switching
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Solution Overview
Problem
In 5G NR-V2X communication, terminal devices may struggle to efficiently obtain transmission resources when the communication environment changes, leading to disrupted data transmission due to changes in geographic location or network faults.
Innovation Solution
A method and device for terminal devices to flexibly determine a transmission mode, allowing them to switch from one mode to another based on indication information from network devices or other terminal devices, or by using a counter to manage resource allocation, ensuring continuous data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a terminal device uses transmission Mode 2d to obtain transmission resources from other terminal devices, then spectrum efficiency is improved and transmission delay is reduced, but the terminal device may be unable to continue data transmission when geographic location changes or resource allocation information cannot be received
Solution Approach 1:
The patent implements dynamic transmission mode switching, allowing the terminal device to transition between Mode 1 (network-configured resources) and Mode 2 (terminal-configured resources) based on real-time reception of indication information. This dynamic adaptability ensures continuous data transmission by switching to an alternative mode when the current mode becomes unavailable due to geographic location changes or loss of resource allocation information
Solution Approach 2:
The patent changes the transmission mode parameter in response to received indication information or counter values. When indication information is received or the counter reaches a threshold, the terminal switches from one transmission mode to another, thereby adapting to changing communication conditions and maintaining reliable data transmission
2Productivity
If a terminal device relies on receiving resource allocation information from other terminal devices, then direct terminal-to-terminal communication is achieved with higher spectrum efficiency, but the system becomes vulnerable to communication disruptions when the communication environment changes
Solution Approach 1:
The patent makes the transmission mode dynamic by introducing mode switching capability. The terminal device can adapt its resource allocation approach based on communication conditions, switching between network-configured Mode 1 and terminal-configured Mode 2, thereby maintaining adaptability to geographic location changes and network conditions while preserving the spectrum efficiency benefits of direct communication
Solution Approach 2:
The patent introduces indication information as an intermediary mechanism that enables the terminal device to detect changes in the communication environment and trigger mode switching. This intermediary signal allows the terminal to adapt to environmental changes without directly relying on continuous resource allocation information from other terminals
Data Source
AI summary
Methods for data transmission are provided. A method for data transmission includes the following. A first terminal device determines a first transmission mode. The first terminal device performs data transmission using the first transmission mode. A terminal device is applicable to device to device (D2D) communication and operable as a first terminal device, and the first terminal device includes at least one processor, a transceiver; and a memory storing instructions which, when executed by the at least one processor, cause the at least one processor to perform the method.