PATENT CLAIM ANALYSIS

Application Number: 15903299
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["370", "208000"]

Abstract:
Techniques, schemes and examples pertaining to using even-length sequence for synchronization and device identification in wireless communications are described. A processor of an apparatus can generate a signal containing at least an even-length Zadoff-Chu (ZC) sequence and transmit the signal to a receiving device. The even-length ZC sequence identifies the apparatus, carries information for signaling, or functions in time-frequency synchronization. The processor can also receive a signal containing at least an even-length ZC sequence and detect the even-length ZC sequence in the received signal.

Claim (Index 20):
The method of  claim 11 , wherein the signal comprises a composite sequence composed of first and second even-length ZC sequences having first and second root indices different from each other, wherein the detecting of the even-length ZC sequence in the received signal comprises executing a first correlator process and a second correlator process in parallel and determining a time-frequency offset based on results of the first and second correlator processes, and wherein:\n the first correlator process comprises:\n phase-unwrapping the received signal to provide a first phase-unwrapped signal; \n performing partially overlapped sliding Discrete Fourier Transform (DFT) on the first phase-unwrapped signal; \n detecting a first window containing the first even-length ZC sequence based on a result of the partially overlapped sliding DFT on the first phase-unwrapped signal; and \n detecting the first index of a first maximum DFT output, and \n the second correlator process comprises:\n phase-unwrapping the received signal to provide a second phase-unwrapped signal; \n performing partially overlapped sliding DFT on the second phase-unwrapped signal; \n detecting a second window containing the second even-length ZC sequence based on a result of the partially overlapped sliding DFT on the second phase-unwrapped signal; and \n detecting the second index of a second maximum DFT output. \n the determining of the time-frequency offset comprises: solving linear equations of the first index of the first maximum DFT output, the second index of the second maximum DFT output, a root index of the first even-length ZC sequence, and a root index of the second even-length ZC sequence.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 88.0
- Lexical Diversity: 1.82353
- Patent Class: 370.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15542769', '13579406', '16065372', '13084441', '15414559']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5578687411937152
- 35 USC 102 Novelty (BERT): 0.4828874223022971
- Combined Prediction Score: 0.5503706093045734
- Mean Citation Score: 174.424002
- Max Citation Score: 185.14322
- Similarity Product: 130.54314912144423

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