PATENT CLAIM ANALYSIS

Application Number: 16248344
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-05
Patent Classification: ["375", "267000"]

Abstract:
A method and apparatus for precoding matrix indicator feedback reduce a quantity of bits in the feedback. In the method, a terminal device receive a reference signal from a base station and determines a precoding matrix W in a precoding matrix set corresponding to a rank indication. W satisfies W=W 1 ×W 2 ×W 3 , where W 1 , W 2  and W 3  are matrices and respectively corresponding to a first, second and third precoding matrix indicator. None of W 1 , W 2 , and W 3  is an identity matrix, and the 2M columns in W 1  comprise every column in W 1 ×W 2 . The terminal device transmits the rank indication, the first precoding matrix indicator, the second precoding matrix indicator, and the third precoding matrix indicator to the base station.

Claim (Index 8):
A terminal device, comprising:\n a receiver, the receiver configured to receive a reference signal from a base station; at least one processor, the at least one processor configured to, based on the received reference signal, determine a precoding matrix W in a precoding matrix set,\n wherein W satisfies W=W 1 \u00d7W 2 \u00d7W 3 , W is a matrix of N t  rows and R columns, wherein N t  is a quantity of antenna ports, wherein R is a rank value corresponding to a rank indication, wherein N t  is an even number, and wherein N t  is greater than or equal to R, \n wherein W 1  is a matrix of N t  rows and 2M columns, wherein W 2  is a matrix of 2M rows and 2K columns, wherein W 3  is a matrix of 2K rows and R columns, wherein N t , R, M, and K are all positive integers, wherein K is less than M, and wherein M is greater than or equal to 2, \n wherein none of W 1 , W 2 , and W 3  is an identity matrix, and wherein the 2M columns in W 1  comprise every column in W 1 \u00d7W 2 , wherein the first precoding matrix W 1  corresponds to a first precoding matrix indicator, the second precoding matrix W 2  corresponds to a second precoding matrix indicator, and the third precoding matrix W 3  corresponds to a third precoding matrix indicator; and \n a transmitter, the transmitter configured to send the rank indication, the first precoding matrix indicator, the second precoding matrix indicator, and the third precoding matrix indicator to the base station.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 99.0
- Lexical Diversity: 2.53448
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16148296', '16146599', '15951153', '14936092', '15950820']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4660842476974192
- 35 USC 102 Novelty (BERT): 0.5623158809911324
- Combined Prediction Score: 0.4757074110267905
- Mean Citation Score: 317.360192
- Max Citation Score: 424.06552
- Similarity Product: 393.29443596598617

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