PATENT CLAIM ANALYSIS

Application Number: 16124320
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["375", "267000"]

Abstract:
A precoding matrix indicator (PMI) is determined for a user equipment or a base station, where the PMI corresponds to a precoding matrix W, and the precoding matrix W satisfies a first condition, a second condition, or a third condition; and the PMI is sent to a base station. The precoding matrix indicator can effectively control a beam, especially a beam shape and a beam orientation, in a horizontal direction and a perpendicular direction.

Claim (Index 1):
A method for determining a precoding matrix indicator (PMI), comprising:\n receiving, by a user equipment, a reference signal sent by a base station; and determining, by the user equipment, the PMI according to the reference signal, wherein the PMI corresponds to a precoding matrix W, and the precoding matrix W satisfies: the precoding matrix W comprises one or more column vectors of a block diagonal matrix W 1 , or the precoding matrix W is obtained by performing weighted combination on one or more column vectors of a block diagonal matrix W 1 , wherein W 1 =diag {X 1 , . . . ,X N B }, and N B \u22651, wherein at least one block matrix X is a Kronecker product of a matrix A and a matrix B, X=A \u2297 B, and X \u03b5 {X 1 ,X 2 , . . . ,X N B }; the matrix A or the matrix B is a product of a matrix D and a matrix V; the matrix D is a diagonal matrix, D=\u03b1\u00b7diag {u 1 ,u 2 , . . . ,u n ,u n *,u n\u22121 *, . . . ,u 1 *}, \u03b1 is a complex factor, a complex number u i * is a conjugate complex number of a complex number u i , i=1, . . . ,n, and n is a quantity of row s of the matrix A or the matrix B; and the matrix V is a constant modulus matrix; wherein in the third condition, the precoding matrix W satisfies W=W 1 W 2 , wherein the matrix W 2  is used to select one or more column vectors of the matrix W 1 ; or is used to perform weighted combination on one or more column vectors of the W 1  to obtain the precoding matrix W; and sending, by the user equipment, the PMI to the base station.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 97.0
- Lexical Diversity: 1.97674
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15819179', '14982286', '15463966', '15371840', '14960100']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5757887664291033
- 35 USC 102 Novelty (BERT): 0.5747813707020357
- Combined Prediction Score: 0.5756880268563965
- Mean Citation Score: 449.077348
- Max Citation Score: 487.8015
- Similarity Product: 406.6521117033362

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

Dataset: test