PATENT CLAIM ANALYSIS

Application Number: 16186433
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["375", "267000"]

Abstract:
A channel state information CSI feedback method is disclosed for receiving a downlink symbol from a base station, where the downlink symbol includes a pilot; obtaining a channel matrix based on the pilot included in the downlink symbol; calculating a precoding matrix based on the channel matrix and a basic codebook; generating CSI based on the precoding matrix; and transmitting an uplink symbol to the base station, where the uplink symbol carries the CSI.

Claim (Index 1):
A channel state information (CSI) feedback method, comprising:\n receiving a downlink symbol from a base station, wherein the downlink symbol comprises a pilot; obtaining a channel matrix based on the pilot of the downlink symbol; calculating a precoding matrix based on the channel matrix and a basic codebook; generating CSI based on the precoding matrix; and transmitting an uplink symbol to the base station, wherein the uplink symbol carries the CSI, and wherein an antenna array is configured for the base station, and the basic codebook is:\n W=W 1 W 2 , \n wherein W is the basic codebook, W 1  is a beam codebook, a quantity of rows in the beam codebook is equal to a quantity of antennas of the base station, and W 2  is a weighted combining codebook, wherein W 1 = [ G 0 0 G \u2032 ] , and\n G corresponds to a first group of antennas in the antenna array, and G\u2032 corresponds to a second group of antennas in the antenna array and \n W 2 = [ A B ] , and wherein\n matrices A and B are both column vectors, quantities of non-zero elements comprised in the column vectors A and B are both greater than 1, a quantity of elements comprised in the column vector A is equal to a quantity of column vectors in a matrix G, and a quantity of elements comprised in the column vector B is equal to a quantity of column vectors in a matrix G\u2032.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 98.0
- Lexical Diversity: 1.97561
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14844714', '15935035', '16021786', '15206062', '14005764']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5295581992602316
- 35 USC 102 Novelty (BERT): 0.5066107682546878
- Combined Prediction Score: 0.5272634561596772
- Mean Citation Score: 278.20550800000007
- Max Citation Score: 287.3273
- Similarity Product: 212.39519905808567

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