PATENT CLAIM ANALYSIS

Application Number: 16518597
Application Type: Utility
Filing Date: 2019-07
Publication Date: 2019-11
Patent Classification: ["375", "267000"]

Abstract:
Channel state information (CSI) feedback in a wireless communication system is disclosed. A precoding matrix is generated for multi-antenna transmission based on precoding matrix indicator (PMI) feedback, wherein the PMI indicates a choice of precoding matrix derived from a matrix multiplication of two matrices from a first codebook and a second codebook. In one embodiment, the first codebook comprises at least a first precoding matrix constructed with a first group of adjacent Discrete-Fourier-Transform (DFT) vectors. In another embodiment, the first codebook comprises at least a second precoding matrix constructed with a second group of uniformly distributed non-adjacent DFT vectors. In yet another embodiment, the first codebook comprises at least a first precoding matrix and a second precoding matrix, where said first precoding matrix is constructed with a first group of adjacent DFT vectors, and said second precoding matrix is constructed with a second group of uniformly distributed non-adjacent DFT vectors.

Claim (Index 2):
The method of  claim 1 , wherein the number of layers of the data stream is one, and wherein the second codebook C 2  comprises at least the following matrix: W 2 \u2208 C 2 = { 1 2 \ue8a0 [ Y Y ] , 1 2 \ue8a0 [ Y jY ] , 1 2 \ue8a0 [ Y - Y ] , 1 2 \ue8a0 [ Y - jY ] } , Y \u2208 { e ~ 1 , e ~ 2 , e ~ 3 , e ~ 4 } , and wherein {tilde over (e)} i  is a 4\u00d71 vector with all zero entries except for the i-th element which has value 1.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 100.0
- Lexical Diversity: 2.7377
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15132024', '14177547', '15055195', '14863156', '15698015']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.582953383202443
- 35 USC 102 Novelty (BERT): 0.6026127733797106
- Combined Prediction Score: 0.5849193222201698
- Mean Citation Score: 488.040322
- Max Citation Score: 516.0027
- Similarity Product: 482.537970584929

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

Dataset: test