PATENT CLAIM ANALYSIS

Application Number: 16068748
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["375", "267000"]

Abstract:
Provided are a method for channel information feedback in a multi-antenna system, and a terminal. The method comprises: a terminal receives CSI-RSs of M ports sent by a base station, and performs estimation according to the CSI-RSs to obtain M-dimensional downlink channel information; the terminal uses a transformation function F k  to perform a linear transformation on the M-dimensional downlink channel information, and obtains N k -dimensional kth type channels, wherein k is greater than or equal to 1 and less than or equal to K, M≥N k , and K≥1; the terminal uses a preset N k -dimensional codebook to respectively perform channel information quantisation on the k th  type channels, and determines a corresponding precoding matrix and precoding matrix indicator information (PMI k ); the terminal selects S type channels from within K type channels, and feeds index numbers of the selected channels and corresponding PMI back to the base station.

Claim (Index 1):
A method for channel information feedback in a multi-antenna system, comprising:\n receiving, by a terminal, channel state information-reference signals (CSI-RSs) of M ports transmitted by a base station, and obtaining M-dimensional downlink channel information by estimating according to the CSI-RSs; obtaining, by the terminal, according to the M-dimensional downlink channel information and a transformation function F k , the k th  type of channel information with N k  dimensions, wherein k is greater than or equal to 1 and is less than or equal to K, M\u2265N k , and K\u22651; performing, by the terminal, by channel information quantization on the k th  type of channel information respectively by using a preset N k -dimensional codebook, to determine a corresponding precoding matrix and precoding matrix indicator information (PMI k ); and selecting, by the terminal, s types of channel information from the K types of channel information, and feeding index numbers of the selected channel information and the corresponding PMIs back to the base station.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 95.0
- Lexical Diversity: 2.01205
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15416561', '14936092', '15951153', '15950820', '16009185']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4609222338164344
- 35 USC 102 Novelty (BERT): 0.5223062669345121
- Combined Prediction Score: 0.4670606371282422
- Mean Citation Score: 271.929634
- Max Citation Score: 292.93372
- Similarity Product: 185.2573537250448

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