Partial Time-Domain Signal Transmission for Guard Period Efficiency
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Solution Overview
Problem
Existing wireless communication systems face challenges in reducing the overhead of time-domain resources occupied by time-domain signals, particularly in scenarios where guard periods or transitions consume significant resources.
Innovation Solution
A method is introduced where a communication apparatus transforms a signal from frequency domain to time domain, sending only a part of the time-domain signal to occupy a fraction of a time-domain symbol, allowing the remaining resources to be used for guard periods or transitions, and employs compressive sensing to map signals to sparse subcarriers, optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complete time-domain symbol is allocated for signal transmission, then the signal can be transmitted reliably, but the time-domain resource overhead increases and guard period resources are insufficient
Solution Approach 1:
The patent segments the time-domain signal transmission by dividing the time-domain symbol into multiple parts. Instead of transmitting the complete signal across the entire symbol duration, the signal is divided into segments that can be transmitted in a compressed manner, reducing the time resources required while maintaining transmission reliability through selective segmentation.
Solution Approach 2:
The patent applies partial action by transmitting only a portion of the time-domain signal rather than the complete signal. By selecting and transmitting critical segments of the signal while omitting redundant portions, the system reduces time-domain resource overhead while maintaining sufficient information for reliable communication.
2Reliability
If more time-domain resources are allocated to guard periods, then transmit/receive transition is ensured, but the resources available for data transmission are reduced
Solution Approach 1:
The patent segments the time-domain resources to create a more flexible structure where guard periods and data transmission regions are optimally divided. By segmenting the time symbol and selectively allocating portions for guard periods versus data transmission, the system achieves reliable transmit/receive transitions while maximizing data transmission efficiency through optimized resource partitioning.
3Productivity
If compressive sensing is used to map signals to sparse subcarriers, then resource utilization is optimized, but the signal processing complexity increases
Solution Approach 1:
The patent applies partial action in compressive sensing by selecting only the most critical subcarriers for signal mapping rather than utilizing all available subcarriers. By identifying and processing only the essential portions of the frequency spectrum, the system achieves optimized resource utilization while reducing signal processing complexity through selective subcarrier assignment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces time-domain resource overheads, enhances resource utilization, and improves data transmission efficiency by allocating part of the time-domain symbol for signal transmission while reserving the rest for guard periods or transitions.
Implementation Method 1
transforming a first signal from frequency domain to time domain, to determine a second signal
Data Source
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AI summary
A signal transmission method and apparatus are provided. The method includes: A first communication apparatus sends a part of a time-domain signal to a second communication apparatus, where the part of the time-domain signal occupies a part of a time-domain symbol. The second communication apparatus may recover bit information transmitted by the first communication apparatus based on the part of the time-domain signal, thereby reducing overheads of time-domain resources.