PATENT CLAIM ANALYSIS

Application Number: 16242288
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-09
Patent Classification: ["375", "261000"]

Abstract:
System and method based upon an OFDM symbol, including a cyclic prefix (CP), that is received after being transmitted over a multiple access channel, wherein the CP is removed, and a Hann window is applied to the symbol. FFT is then applied to the Hann windowed symbol to obtain the frequency domain subcarriers. The pilot symbols are filtered accordingly to obtain Hann windowed pilots to estimate effective channel. Inter-carrier interference is calculated and removed.

Claim (Index 11):
A method for Orthogonal Frequency Division Multiplexing (OFDM) transmission and reception, the method comprising:\n performing amplitude shift keying (ASK) modulation of bits at a transmitter, the ASK modulated bits to be transmitted to a receiver over a multiple access channel; applying \u03c0/2-rotation to the ASK modulated symbols to generate \u03c0/2-MASK modulated symbols; applying multiple access mapping to the \u03c0/2-MASK modulated symbols to shape the symbols into multiple access (MA) OFDM data subcarriers; performing Inverse Fast Fourier Transformation (IFFT) on the OFDM data subcarriers to generate the OFDM waveforms; adding a cyclic prefix to the OFDM waveforms before transmission over the multiple access channel; introducing a channel impulse response (CIR) and adjacent channel interference (ACI) into the OFDM waveforms during transmission over the channel; receiving the OFDM waveforms at a Hann receiver; performing Hann windowing of the received OFDM waveforms; performing Fast Fourier Transformation (FFT) and multiple access subcarrier demapping to obtain frequency domain symbols of a desired user; estimating the channel; and equalizing the frequency domain symbols using the channel estimates; applying \u2212\u03c0/2 rotation to the equalized frequency domain symbols and ASK demodulation to the symbols to recover desired bits.

Metadata:
- Claim Count in Document: 12.0
- Percentile: 99.0
- Lexical Diversity: 1.58491
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14872217', '10985860', '12588585', '12274037', '11350807']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5024769352108758
- 35 USC 102 Novelty (BERT): 0.5030036115221634
- Combined Prediction Score: 0.5025296028420045
- Mean Citation Score: 267.51033400000006
- Max Citation Score: 282.5598
- Similarity Product: 220.1519402921319

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test