Qualcomm incorporated (20240137261). DEMODULATION OF MODULATION CONSTELLATIONS WITH PROBABILISTIC AMPLITUDE SHAPING simplified abstract

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DEMODULATION OF MODULATION CONSTELLATIONS WITH PROBABILISTIC AMPLITUDE SHAPING

Organization Name

qualcomm incorporated

Inventor(s)

Liangming Wu of Beijing (CN)

Thomas Joseph Richardson of South Orange NJ (US)

Kexin Xiao of Shanghai (CN)

Changlong Xu of Beijing (CN)

Ori Shental of Marlboro NJ (US)

Hao Xu of Beijing (CN)

DEMODULATION OF MODULATION CONSTELLATIONS WITH PROBABILISTIC AMPLITUDE SHAPING - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240137261 titled 'DEMODULATION OF MODULATION CONSTELLATIONS WITH PROBABILISTIC AMPLITUDE SHAPING

Simplified Explanation

The patent application describes methods, systems, and devices for wireless communications using probabilistic amplitude shaping (PAS) modulation techniques. Here are the key points:

  • Receiving devices like base stations or user equipment receive input signals modulated with PAS modulation.
  • The receiving device determines a channel noise estimate and scales the input signal and noise estimate based on a probability distribution parameter associated with PAS modulation.
  • The receiving device demaps the modulation constellation of the input signal using the scaled input signal and noise estimate to provide bits associated with the PAS modulated constellation.
  • The probability distribution parameter can be estimated at the receiving device or provided by the transmitting device.

Potential Applications

This technology can be applied in various wireless communication systems, such as 5G networks, IoT devices, and satellite communications.

Problems Solved

1. Improved signal-to-noise ratio in wireless communications. 2. Efficient data transmission over noisy channels.

Benefits

1. Enhanced reliability and performance of wireless communication systems. 2. Increased data throughput and capacity. 3. Better utilization of available spectrum.

Potential Commercial Applications

Optimized wireless communication systems for industries like telecommunications, IoT, and satellite communication services.

Possible Prior Art

Prior art in wireless communications modulation techniques such as QAM (Quadrature Amplitude Modulation) and OFDM (Orthogonal Frequency Division Multiplexing) may have similarities to the PAS modulation described in the patent application.

Unanswered Questions

How does this technology compare to existing modulation techniques in terms of spectral efficiency and error rates?

This article does not provide a direct comparison with existing modulation techniques in terms of spectral efficiency and error rates. Further research or testing may be needed to evaluate the performance of PAS modulation in comparison to other techniques.

What are the potential challenges in implementing PAS modulation in practical wireless communication systems?

The article does not address the potential challenges in implementing PAS modulation in practical wireless communication systems. Factors such as hardware compatibility, complexity of implementation, and interoperability with existing standards could be potential challenges that need to be explored further.


Original Abstract Submitted

methods, systems, and devices for wireless communications are described in which a receiving device, such as a base station or user equipment (ue), may receive an input signal that is modulated according to a probabilistic amplitude shaping (pas) modulation technique. the receiving device may determine an associated channel noise estimate and may scale the input signal and the channel noise estimate based on a probability distribution parameter that is associated with the pas modulation. the receiving device may demap the modulation constellation of the input signal based on the scaled input signal and the scaled channel noise estimate and provide one or more bits associated with the pas modulated constellation. the probability distribution parameter may be estimated at the receiving device, or the transmitting device may provide the probability distribution parameter to the receiving device.