Wireless Signal Overlap for Low-Complexity Receivers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems face challenges in efficiently utilizing resources when transmitting signals using low-order modulation schemes like amplitude keying or envelope detection, particularly in low-power and low-complexity receivers, leading to suboptimal resource utilization.
Innovation Solution
A wireless communication method involving the transmission of a first target signal carrying information and a second target signal based on envelope detection or amplitude-modulation, with overlapping time-frequency resources, to enhance resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If low-order modulation schemes (e.g., amplitude keying) or envelope detection are used for signal transmission, then power consumption and complexity of the receiver are reduced, but resource utilization ratio of the system deteriorates
Solution Approach 1:
The patent merges the transmission of first target signals (carrying information) and second target signals (envelope detection or amplitude-modulated signals) by allowing their time-frequency resources to overlap. This combining approach enables low-power receivers to detect envelope signals while high-performance receivers can utilize the full capacity of the overlapping resources for both information-bearing signals and envelope signals, thereby improving overall resource utilization without increasing receiver complexity for devices that only need envelope detection.
Solution Approach 2:
The patent creates a universal transmission framework where the same time-frequency resources serve multiple functions simultaneously: carrying information via first target signals and providing envelope detection capability via second target signals. This multi-functionality allows different types of receivers (low-power envelope detectors and full-featured demodulators) to operate from the same signal infrastructure, resolving the contradiction between simplified receiver design and efficient resource usage.
2Use of energy by moving object
If low-order modulation schemes (e.g., amplitude keying) are used for signal transmission, then power consumption of the receiver is reduced, but resource utilization ratio of the system deteriorates
Solution Approach 1:
The patent merges the transmission of first target signals (carrying information) and second target signals (envelope detection or amplitude-modulated signals) by allowing their time-frequency resources to overlap. This combining approach enables low-power receivers to detect envelope signals while high-performance receivers can utilize the full capacity of the overlapping resources for both information-bearing signals and envelope signals, thereby improving overall resource utilization without increasing receiver complexity for devices that only need envelope detection.
Solution Approach 2:
The patent creates a universal transmission framework where the same time-frequency resources serve multiple functions simultaneously: carrying information via first target signals and providing envelope detection capability via second target signals. This multi-functionality allows different types of receivers (low-power envelope detectors and full-featured demodulators) to operate from the same signal infrastructure, resolving the contradiction between simplified receiver design and efficient resource usage.
Data Source
AI summary
A wireless communication method includes: transmitting, by a first device, a first target signal and a second target signal, where the first target signal is used to carry information to be transmitted, the second target signal is a signal received based on an envelope detection scheme or an amplitude-modulated signal, and a time-frequency resource of the first target signal overlaps with a time-frequency resource of the second target signal.