PATENT CLAIM ANALYSIS

Application Number: 15766035
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["375", "267000"]

Abstract:
In a wireless communications system, a base station includes a first number of antennas and a smaller second number of radio frequency links. A base station apparatus includes: a rough arrival angle estimation unit, which estimates a rough arrival angle pair by a second number of antennas and a second number of radio frequency links; a candidate arrival angle estimation unit, which determines a candidate arrival angle pair based on a rough arrival angle pair and beam widths determined by a first number and a second number of antennas, respectively; and a precise arrival angle determination unit, which calculates the difference between the projection component and real component for the candidate arrival angle pairs based on a training tone from the user equipment, and designates the candidate arrival angle pair with the smallest difference between those components as the precise arrival angle pair.

Claim (Index 14):
The method according to  claim 12 , wherein number of the pairs of candidate arrival angles is determined based on relationship between the beam widths in the horizontal domain and the vertical domain determined based on the first number of antennas and the beam widths in the horizontal domain and the vertical domain determined based on the second number of antennas, and the pairs of candidate arrival angles are determined based on the determined number by taking the pair of coarse arrival angles as a center, so that the determined number of pairs of candidate arrival angles are distributed evenly within a scope of the beam widths in the horizontal domain and the vertical domain determined based on the second number of antennas.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 91.0
- Lexical Diversity: 2.44444
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14407897', '14779925', '15810588', '14404335', '15306741']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5235347100644616
- 35 USC 102 Novelty (BERT): 0.5057682967115653
- Combined Prediction Score: 0.521758068729172
- Mean Citation Score: 242.11384200000003
- Max Citation Score: 249.43054
- Similarity Product: 164.8343705472398

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