PATENT CLAIM ANALYSIS

Application Number: 15781451
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["375", "346000"]

Abstract:
The invention relates to precoding (or rather pre-equalisation) for a faster-than-Nyquist OFDM or OFDM/OQAM type transmitter. Compression of faster-than-Nyquist OFDM pulses over time introduces an inter-symbol interference (ISI) and a sub-carrier interference (ICI). Assuming a Gaussian-type channel (AWGN), the ISI and ICI can be estimated at the transmitter and, in this way, some of the symbols (at most half) can be precoded (according to the value of the adjacent symbols), such as to cancel the ISI and ICI introduced during transmission and reception.

Claim (Index 5):
The method as claimed in  claim 1 , characterized in that said step of modulating ( 32 ) implements an FTN-OFDM type modulation, and in that said step of precoding ( 31 ) delivers, from a symbol a m 0 ,n 0  of the set of symbols, a precoded symbol c m 0 ,n 0  intended to modulate a carrier at the location (m 0 ,n 0 ) in said predetermined transmission pattern, such that: c m 0 , n 0 = { ( a m 0 , n 0 - \u03b1 \ue89e \ue89e ISI \ue89e \ue89e if \ue89e \ue89e ( \u03b2 = 0 \ue89e \ue89e and \ue89e \ue89e n 0 = k \ue89e \ue89e mod \ue8a0 ( l \u2032 + 1 ) , ( k \u2208 \u2115 \ue89e \ue89e and \ue89e \ue89e k \u2264 l \u2032 ) ) ) ( a m 0 , n 0 - \u03b2 \ue89e \ue89e ICI \ue89e \ue89e if \ue89e \ue89e ( \u03b1 = 0 \ue89e \ue89e and \ue89e \ue89e m 0 = k \ue89e \ue89e mod \ue8a0 ( l + 1 ) , ( k \u2208 \u2115 \ue89e \ue89e and \ue89e \ue89e k \u2264 l ) ) ) ( a m 0 , n 0 - \u03b1 \ue89e \ue89e ISI - \u03b2 \ue89e \ue89e ICI \ue89e \ue89e if \ue89e \ue89e ( m 0 = k \ue89e \ue89e mod \ue8a0 ( l + 1 ) , and \ue89e \ue89e n 0 = k \u2032 \ue89e mod \ue8a0 ( l \u2032 + 1 ) , ( k , k \u2032 \u2208 \u2115 \ue89e , k \u2264 l \ue89e \ue89e and \ue89e \ue89e k \u2032 \u2264 l \u2032 ) ) ) with:\n mod the modulo operator, \n \u03b1 and \u03b2 selection factors of a type of interference to be processed, 0\u2264\u03b1, \u03b2\u22641, \n ICI an intercarrier interference term determined on said carrier at the location (m 0 ,n 0 ) and of the the symbols a m 0 ,n 0 +p  and a m 0 ,n 0 \u2212p , \n ISI an intersymbol interference term determined on said carrier at the location (m 0 ,n 0 ) and of the the symbols a m 0 ,n 0 +p  and a m 0 ,n 0 \u2212p , \n p, q\u03f5 + , p\u03f5[\u2212l,l], and q\u03f5[\u2212l\u2032,l\u2032], l,l\u2032\u03f5 .

Metadata:
- Claim Count in Document: 3.0
- Percentile: 94.0
- Lexical Diversity: 1.72881
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13058330', '12599762', '15341227', '11665311', '14002001']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4891502553534113
- 35 USC 102 Novelty (BERT): 0.5278619194987624
- Combined Prediction Score: 0.4930214217679465
- Mean Citation Score: 278.28531
- Max Citation Score: 307.4219700000001
- Similarity Product: 193.94798437482484

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