Terminal Dynamic Waveform Switching for Wireless Transmission
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Solution Overview
Problem
Current wireless communication systems face performance limitations due to the inability of terminals to dynamically switch between cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) and discrete Fourier transform-spread orthogonal frequency division multiplexing (DFT-S-OFDM) waveforms based on channel conditions, leading to suboptimal transmission performance.
Innovation Solution
The implementation of an information transmission method and apparatus that allows terminals to receive signaling from network side devices indicating waveform switching, enabling dynamic switching between CP-OFDM and DFT-S-OFDM waveforms to optimize uplink transmission performance by using first signaling that includes indication information and waveform information, thereby improving transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal uses a fixed waveform configuration, then the device complexity is low, but the transmission performance is suboptimal
Solution Approach 1:
The patent implements dynamic waveform switching between CP-OFDM and DFT-S-OFDM based on channel conditions. The terminal receives first signaling from the network side device that includes waveform indication information, enabling the terminal to switch waveforms dynamically rather than using a fixed configuration, thus improving transmission performance while managing complexity through network-controlled switching.
Solution Approach 2:
The patent changes the waveform parameter (selecting between CP-OFDM and DFT-S-OFDM) based on channel conditions and network instructions. By modifying this key parameter dynamically rather than keeping it fixed, the system adapts to varying transmission conditions to optimize performance.
2Productivity
If the terminal cannot dynamically switch waveforms, then the ease of operation is high, but the transmission efficiency is limited
Solution Approach 1:
The terminal autonomously determines the target waveform based on the first signaling received from the network side device. The terminal self-configures the waveform switching without manual intervention, maintaining ease of operation while achieving dynamic adaptation for improved transmission efficiency.
Solution Approach 2:
The network side device provides feedback through first signaling that includes waveform indication information. This feedback mechanism enables the terminal to adjust its waveform based on network conditions, improving transmission efficiency while the automated feedback loop maintains operational simplicity.
3Adaptability or versatility
If the terminal uses existing waveform configuration only, then the device complexity is low, but the adaptability to channel conditions is poor
Solution Approach 1:
The patent introduces dynamic waveform switching capability where the terminal can switch between CP-OFDM and DFT-S-OFDM based on real-time channel conditions and network instructions. This dynamic adaptation mechanism significantly improves channel condition adaptability compared to fixed configuration, while the complexity is managed through network-controlled switching procedures.
Data Source
AI summary
This application discloses an information transmission method and apparatus, a terminal, a network side device, and a readable storage medium. The information transmission method in embodiments of this application includes: receiving, by a terminal, first signaling sent by a network side device, where the first signaling includes at least one of the following: first indication information, indicating the terminal to switch a transmission waveform; and waveform information, used for determining information about a target transmission waveform.