PATENT CLAIM ANALYSIS

Application Number: 16185383
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["375", "267000"]

Abstract:
The present disclosure discloses a channel state information feedback method, a base station, a terminal device, and a system. The method includes: receiving, by a terminal device, a reference signal sent by a base station; determining, by the terminal device, channel state information based on the reference signal; and sending, by the terminal device, the channel state information to the base station, so that the base station determines a precoding matrix F. The precoding matrix F=C 1 C 2 W, where C 1  is a first-level precoding matrix, C 2  is a second-level precoding matrix, and W is a third-level precoding matrix. Channel state information corresponding to C 1  includes beam information, channel state information corresponding to C 2  includes long-term wideband channel information, and channel state information corresponding to W includes instantaneous channel information. This patent application can reduce total pilot and CSI feedback overheads, thereby improving a system throughput.

Claim (Index 7):
The channel state information feedback method according to  claim 6 , wherein:\n receiving, by a terminal device, a reference signal sent by a base station comprises:\n receiving, by the terminal device, a first-level reference signal sent by the base station; \n determining, by the terminal device, channel state information based on the reference signal comprises:\n determining, by the terminal device, the beam information based on the first-level reference signal; and \n sending, by the terminal device, the channel state information to the base station comprises:\n sending, by the terminal device, the beam information to the base station.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 98.0
- Lexical Diversity: 2.63636
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15564873', '15518413', '14569522', '14923019', '16186433']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.54838411655138
- 35 USC 102 Novelty (BERT): 0.4992563290484834
- Combined Prediction Score: 0.5434713378010904
- Mean Citation Score: 241.980462
- Max Citation Score: 246.97302
- Similarity Product: 181.66840602467536

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

Dataset: test