1-Bit Quantized Wireless Transmission With Differential Phase Modulation
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Solution Overview
Problem
Existing mobile communication systems face challenges in accommodating explosive data traffic, high-speed services, and energy efficiency, particularly in next-generation systems requiring advanced technologies like dual connectivity, massive MIMO, and non-orthogonal multiple access.
Innovation Solution
A transmitting and receiving method based on 1-bit quantization using 1-bit differential phase shift modulation and demodulation, along with link adaptive transmission, to enhance energy efficiency and process a larger number of data bits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional multi-bit quantization is used in mobile communication systems, then data processing capacity and signal quality are improved, but power consumption increases significantly
Solution Approach 1:
The patent segments the quantization process into 1-bit quantization at the receiver端, separating the high-precision analog-to-digital conversion from the digital signal processing. This allows the system to achieve adequate data processing capacity while dramatically reducing the power consumption associated with multi-bit quantization hardware
Solution Approach 2:
The patent changes the quantization parameter from conventional multi-bit (e.g., 8-bit or 10-bit) to 1-bit quantization. This parameter change fundamentally reduces the complexity and power consumption of the quantization hardware while maintaining acceptable data processing capacity through differential encoding schemes
2Use of energy by moving object
If 1-bit quantization is used to reduce power consumption, then energy efficiency is improved, but the number of data bits that can be processed is limited
Solution Approach 1:
The patent transitions from conventional amplitude-based quantization to phase-based differential quantization. By encoding information in the phase domain rather than amplitude, the system can process more data bits through phase transitions while maintaining 1-bit quantization, thus improving data processing capacity without increasing power consumption
Solution Approach 2:
The patent introduces differential encoding as an intermediary layer between the 1-bit quantization and the data processing system. This intermediary encoding scheme allows the system to represent multiple data bits through sequences of 1-bit phase transitions, effectively expanding data processing capacity while maintaining the low power consumption benefits of 1-bit quantization
3Productivity
If advanced technologies like massive MIMO and non-orthogonal multiple access are deployed, then data traffic accommodation and transfer rates are improved, but system complexity and energy consumption increase
Solution Approach 1:
The patent extracts the quantization function from the complex digital signal processing chain and implements it as a simple 1-bit quantizer at the front end. This separation allows the rest of the system to process quantized data with reduced complexity, enabling the deployment of advanced technologies like massive MIMO and non-orthogonal multiple access without proportionally increasing overall system complexity
Data Source
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AI summary
A method for transmitting and receiving a signal in a wireless communication system and an apparatus therefor are disclosed in the present disclosure. Specifically, a method for transmitting and receiving a signal by a receiving apparatus in a wireless communication system, according to an embodiment of the present disclosure, may comprise the steps of: continuously receiving a plurality of reference signals from a transmitting apparatus; sorting the ranges of channel phases on the basis of the plurality of reference signals; grouping the ranges of the channel phases into two or more groups; and receiving a data signal from the transmitting apparatus.