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 7):
A terminal device, comprising:\n a receiving module, configured to receive a downlink symbol from a base station; a channel state information CSI generation module, configured to obtain a channel matrix according to a pilot comprised in the downlink symbol, calculate a precoding matrix based on the channel matrix and a basic codebook, and generate CSI based on the precoding matrix; and a transmission module, configured to transmit an uplink symbol to the base station, wherein the uplink symbol carries the CSI; 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 ] , 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 wherein W 2 = [ A B ] , 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): 0.5297493861254255
- 35 USC 102 Novelty (BERT): 0.5055147106861515
- Combined Prediction Score: 0.5273259185814981
- Mean Citation Score: 278.20550800000007
- Max Citation Score: 287.3273
- Similarity Product: 217.1884869734287

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