PATENT CLAIM ANALYSIS

Application Number: 16100441
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["375", "140000"]

Abstract:
An apparatus and method for filter bank multi-carrier signal modulation with a low peak-to-average power ratio (PAPR) in a multiple antenna system are disclosed. According to embodiments of the present disclosure, in a multiple antenna transmission method, after a plurality of transmission candidate signals, which are modulated for each antenna using discrete Fourier transform (DFT) spread filter bank multi-carrier and offset quadrature amplitude modulation (FBMC/OQAM) techniques and are capable of obtaining a single carrier effect, are generated, a transmission candidate signal with a low PAPR can be selected and transmitted, and thus peak-to-average power ratio performance can be effectively improved, and interference between subcarriers can be eliminated by applying an Alamouti coding manner.

Claim (Index 18):
A modulation method comprising:\n generating a first DFT (Discrete Fourier Transform)-spread symbol group and a second DFT-spread symbol group by performing DFT on each of a first quadrature amplitude modulation (QAM) data symbol group and a second QAM data symbol group; extracting a real part symbol and an imaginary part symbol from each of DFT-spread symbols included in each of the first DFT-spread symbol group and the second DFT-spread symbol group; generating a first real part symbol group and a second real part symbol group by multiplying real part symbols extracted from the first DFT-spread symbol group and the second DFT-spread symbol group by a first phase shift coefficient; generating a first imaginary part symbol group and a second imaginary part symbol group by multiplying imaginary part symbols extracted from the first DFT-spread symbol group and the second DFT-spread symbol group by a second phase shift coefficient; generating a plurality of different transmission candidate signal sets each including a transmission candidate signal for a first antenna and a transmission candidate signal for a second antenna which are modulated in a filter bank multi-carrier and offset quadrature amplitude modulation (FBMC/OQAM) manner using the first real part symbol group, the second real part symbol group, the first imaginary part symbol group and the second imaginary part symbol group; and selecting a transmission candidate signal set having a lowest peak power or a lowest peak-to-average power ratio from among the plurality of different transmission candidate sets as a transmission signal for each of the first antenna and the second antenna.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 96.0
- Lexical Diversity: 1.66234
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15897301', '15627118', '15563027', '15485700', '15797138']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.518620523244525
- 35 USC 102 Novelty (BERT): 0.5092337169837011
- Combined Prediction Score: 0.5176818426184426
- Mean Citation Score: 254.41379
- Max Citation Score: 300.321
- Similarity Product: 245.9414916887284

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