PATENT CLAIM ANALYSIS

Application Number: 16359355
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["375", "344000"]

Abstract:
Automatic frequency controllers, automatic frequency control methods, wireless communication devices, and/or wireless communication methods are provided. The automatic frequency controllers for correcting a frequency offset between a base station and a terminal includes at least one processor communicatively coupled to a memory and configured to execute computer-readable instructions stored in the memory to obtain a phase estimate from a reference signal received from the base station; classify a downlink channel as a High Speed Train (HST) channel or a non-HST channel based on the phase estimate; adjust a loop gain according to the classified downlink channel; calculate a phase error based on the phase estimate and the loop gain; correct the frequency offset using the phase error; and communicate with the base station after correcting the frequency offset.

Claim (Index 18):
A wireless communication device comprising:\n a local oscillator configured to generate an oscillation signal having a local oscillation frequency; a Radio Frequency (RF) circuit configured to output a baseband signal based on an RF signal received from a base station and the oscillation signal received from the local oscillator; and an automatic frequency controller configured to classify a downlink channel as a high speed train (HST) channel or a non-HST channel based on a reference signal included in the baseband signal, to adjust a loop gain according to the classification of the downlink channel, to calculate a phase error from the reference signal according to the loop gain, and to adjust the local oscillation frequency based on the calculated phase error, wherein the automatic frequency controller comprises: a phase estimator configured to obtain a phase estimate from the reference signal; a wireless channel classifier configured to classify the downlink channel as the HST channel or the non-HST channel based on the phase estimate; a loop gain controller configured to adjust and to output the loop gain as a variable loop gain when the downlink channel is classified as the HST channel, and to output the loop gain as a fixed loop gain when the downlink channel is classified as the non-HST channel; and a digital loop filter configured to calculate the phase error based on the phase estimate and the variable loop gain or fixed loop gain.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 99.0
- Lexical Diversity: 1.89189
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15657598', '15210468', '13361247', '12349787', '10556560']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4663728404696474
- 35 USC 102 Novelty (BERT): 0.5845677584326685
- Combined Prediction Score: 0.4781923322659495
- Mean Citation Score: 241.117456
- Max Citation Score: 491.28482
- Similarity Product: 433.8425717392707

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