PATENT CLAIM ANALYSIS

Application Number: 15909469
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["375", "260000"]

Abstract:
A transmitter of an FBMC-MIMO system in which, for each FBMC-OQAM modulator associated with a transmission antenna, the symbols of a block to be transmitted are grouped in pairs, the input symbols in a pair being combined to output first and second combined symbols, the combined symbols being input to the FBMC-OQAM modulator. The invention also relates to a receiver including an FBMC-OQAM demodulator ( 410 1 , . . . ,410 N R ) and an ML detector ( 450 k ) from the observables obtained, for each reception antenna. The used ML detection allows for not being affected by intrinsic interference and obtaining a high degree of diversity without increasing the number of antennas.

Claim (Index 6):
A receiver of an FBMC-MIMO transmission system comprising a plurality (N R ) of reception antennas and a same plurality of FBMC-OQAM demodulators ( 410 1 , . . . ,  410 N R ), each FBMC-OQAM demodulator comprising an analysis filter bank followed by an OQAM demodulator, each FBMC-OQAM demodulator being associated with a corresponding reception antenna and, starting from the signal received on this antenna, outputting a plurality of complex symbols (y k,n 1 , k=0, . . . , M\u22121) corresponding to different FBMC carriers, wherein said receiver comprises:\n a plurality M of multiplexers ( 420 1 , . . . ,  420 M\u22121 ) to group symbols at the output from FBMC-OQAM demodulators by FBMC carrier, the symbols thus grouped at the output being represented in the form of a complex vector (y k =(y k,n 1 , . . . , y k,n N R ) T ) with size N R  , each complex vector being associated with an FBMC carrier; a deinterleaver to deinterleave the complex vectors thus obtained and to supply them in the form of pairs of complex vectors (y k ,y k\u2032 ); a plurality M of projection modules ( 440 k ), each projection module being associated with an FBMC carrier, k=0, . . . , M\u22121, and projecting the complex vector associated with this carrier onto the N T  last columns of an orthonormal matrix Q k  with size 2N R \u00d72N T  obtained by QR decomposition of matrix H ( k = ( \n                   \n                   \n                   \n                   ) in which H k  is the matrix with size N R \u00d7N T  representing the MIMO channel for carrier k, each projection module outputting a projected real vector (y % k ) with size 2N T ;\n a plurality of maximum likelihood detection modules ( 450 k ), each of these modules receiving a pair of real vectors thus projected and using them to deduce a pair of transmitted symbols ({circumflex over (x)} k , {circumflex over (x)} k+1 ), the most probable having been combined using a linear combination during transmission.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 90.0
- Lexical Diversity: 1.67568
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15545672', '15485700', '15592535', '15485723', '15708987']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5151972792276707
- 35 USC 102 Novelty (BERT): 0.5153017896637112
- Combined Prediction Score: 0.5152077302712748
- Mean Citation Score: 289.761846
- Max Citation Score: 318.8037
- Similarity Product: 243.32336848885413

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

Dataset: test