Short-Range Wireless Signaling With FDSS and Polar Coding
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Solution Overview
Problem
Current short-range wireless communication technologies face challenges in reducing power consumption while maintaining high throughput rates, particularly in scenarios requiring low-power communication over short distances, such as extended reality applications, where high-frequency bands increase power consumption and costs.
Innovation Solution
The implementation of a communication method using frequency domain spectral shaping (FDSS) waveform processing to reduce the peak-to-average power ratio (PAPR) of signals and polar encoding to decrease decoding power consumption in receiving devices, specifically in the millimeter wave frequency band between 30 GHz and 300 GHz.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-frequency band signals are used for short-range communication to improve throughput rate, then communication throughput is improved, but power consumption of sending and receiving devices increases
Solution Approach 1:
The patent applies frequency domain spectral shaping (FDSS) waveform processing to modify the signal parameters, specifically reducing the peak-to-average power ratio (PAPR) by shaping the spectral characteristics of the modulated signal. This allows high-throughput communication to be achieved with lower peak power requirements, thereby reducing overall power consumption while maintaining high data rates
Solution Approach 2:
The patent employs polar encoding which dynamically adapts the coding scheme based on channel conditions and requirements. The polar code structure allows flexible rate matching and can be optimized for different throughput requirements, enabling the system to achieve high throughput when needed while consuming less power during lower throughput periods
2Productivity
If conventional encoding methods are used to achieve high throughput, then data transmission rate is improved, but decoding power consumption increases
Solution Approach 1:
The patent adopts polar encoding with specific code rates and lengths optimized for the communication scenario. By carefully selecting encoding parameters (code rate, block length) and combining with FDSS waveform processing, the system achieves high spectral efficiency for high throughput while the polar decoder consumes less power compared to conventional LDPC or Turbo decoders
Data Source
AI summary
Embodiments of this application disclose a communication method and a communication apparatus, to reduce a PAPR of a signal sent by a sending device by using an FDSS waveform processing manner, and reduce decoding power consumption of a receiving device by using a polar code encoding manner. This improves communication energy efficiency. In this method, the sending device performs frequency domain spectrum shaping FDSS processing on a first signal, to obtain a second signal, where the first signal is a signal obtained by performing polar code encoding based on a modulation and coding scheme; and then, the sending device sends a target signal to the receiving device, where the target signal is a signal obtained based on the second signal.