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 1):
A method for Orthogonal Frequency Division Multiplexing (OFDM) transmission and reception, the method comprising:\n receiving, at a Hann receiver, a CP-OFDM symbol comprising a cyclic prefix (CP); removing the cyclic prefix from the received CP-OFDM symbol to generate an OFDM symbol; applying a Hann window to the OFDM symbol to obtain a Hann windowed OFDM symbol, wherein applying the Hann window introduces inter-carrier interference (ICI) into the OFDM symbol; applying Fast Fourier Transformation (FFT) to the Hann windowed OFDM symbol to obtain a plurality of frequency domain subcarriers; applying multiple access (MA) subcarrier demapping to the plurality of frequency domain subcarriers to obtain a plurality of MA demapped frequency domain subcarriers; receiving, at the Hann receiver, a transmitted pilot sequence comprising a plurality of frequency domain pilot symbols; filtering the plurality of frequency domain pilot symbols of the transmitted pilot sequence to obtain an observed pilot sequence; performing channel estimation based upon the observed pilot sequence to estimate the ICI introduced into the OFDM symbols by the application of the Hann window; and cancelling the ICI from the plurality of MA demapped frequency domain subcarriers based upon the channel estimation.

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): 0.5026762318025304
- 35 USC 102 Novelty (BERT): 0.5019145802459898
- Combined Prediction Score: 0.5026000666468764
- Mean Citation Score: 267.51033400000006
- Max Citation Score: 282.5598
- Similarity Product: 224.58490744936464

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test