Nokia technologies oy (20240340209). PROBABILISTIC AMPLITUDE SHAPING APPLIED TO PAPR REDUCTION simplified abstract
Contents
PROBABILISTIC AMPLITUDE SHAPING APPLIED TO PAPR REDUCTION
Organization Name
Inventor(s)
Mohamad Sayed Hassan of Massy (FR)
PROBABILISTIC AMPLITUDE SHAPING APPLIED TO PAPR REDUCTION - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240340209 titled 'PROBABILISTIC AMPLITUDE SHAPING APPLIED TO PAPR REDUCTION
Simplified Explanation: The patent application describes an apparatus that stores probabilities of transitions between modulation symbols to reduce peak-to-average power ratio, processes input bit sequences into symbol sequences, generates parity bits, groups symbols, and multiplies them with corresponding parity bits.
Key Features and Innovation:
- Memory stores probabilities of transitions between modulation symbols for lower peak-to-average power ratio.
- Distribution matcher circuitry processes input bit sequences into symbol sequences based on stored probabilities.
- Channel coder generates parity bits from symbol sequences.
- Grouping circuitry assigns symbols into groups for multiplication with parity bits.
Potential Applications: This technology can be used in wireless communication systems, digital broadcasting, and satellite communication for efficient data transmission with reduced power consumption.
Problems Solved: The technology addresses the issue of high peak-to-average power ratio in modulation schemes, improving power efficiency and reducing signal distortion during transmission.
Benefits:
- Lower peak-to-average power ratio
- Improved power efficiency
- Reduced signal distortion
- Enhanced data transmission reliability
Commercial Applications: Potential commercial applications include telecommunications equipment, satellite communication systems, and digital broadcasting devices. This technology can improve the performance and efficiency of data transmission in various communication systems.
Prior Art: Researchers can explore prior patents related to modulation schemes, symbol processing, and power efficiency in communication systems to understand the evolution of this technology.
Frequently Updated Research: Stay updated on advancements in modulation techniques, power efficiency optimization, and symbol processing algorithms in communication systems to enhance the performance of this technology.
Questions about Modulation Symbol Transition Probability Apparatus: 1. What are the key advantages of using probabilities of transitions between modulation symbols in reducing peak-to-average power ratio? 2. How does the grouping circuitry improve the efficiency of symbol processing in the apparatus?
Original Abstract Submitted
according to an example aspect of the present disclosure, there is provided an apparatus comprising memory configured to store a set of probabilities of transitions between modulation symbols, the set of probabilities corresponding to a lower peak-to-average power ratio than a set of equal probabilities of transitions between modulation symbols, distribution matcher circuitry configured to process an input bit sequence into a symbol sequence, wherein frequencies of transitions between symbols in the symbol sequence conform to probabilities in the set of probabilities, a channel coder configured to generate parity bits of unity and negative unity from bit information obtained from the symbol sequence, grouping circuitry configured to assign symbols of the symbol sequence into groups each comprising two or more symbols, and multiplication circuitry configured to multiply each one of the groups with a corresponding one of the parity bits.
