PATENT CLAIM ANALYSIS

Application Number: 16221123
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-05
Patent Classification: ["375", "267000"]

Abstract:
The present invention relates to a method for transmitting, by a base station, a downlink signal using a plurality of transmission antennas comprises the steps of: applying a precoding matrix indicated by the PMI, received from a terminal, in a codebook to a plurality of layers, and transmitting the precoded signal to the terminal through a plurality of transmission antennas. Among precoding matrices included in the codebook, a precoding matrix for even number transmission layers can be a 2×2 matrix containing four matrices (W 1 s ), the matrix (W 1 ) having rows of a number of transmission antennas and columns of half the number of transmission layers, the first and second columns of the first row in the 2×2 matrix being multiplied by 1, the first column of the second row being multiplied by coefficient “a” of a phase, and the first column of the second row being multiplied by “−a”.

Claim (Index 4):
The method according to  claim 3 , the product is Kronecker product.

Metadata:
- Claim Count in Document: 12.0
- Percentile: 98.0
- Lexical Diversity: 2.49275
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13639991', '14310174', '15676543', '15133506', '14664401']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5761861538494389
- 35 USC 102 Novelty (BERT): 0.5696346351335901
- Combined Prediction Score: 0.5755310019778541
- Mean Citation Score: 455.450656
- Max Citation Score: 487.6367
- Similarity Product: 338.62292356048823

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