PATENT CLAIM ANALYSIS

Application Number: 15967371
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["370", "350000"]

Abstract:
The present invention relates to the field of wireless communications technologies. In a receiving device, a receiving module receives a synchronization signal including a first signal and a second signal. The first signal includes N1 generalized ZC sequences, and the second signal includes N2 generalized ZC sequences. The second signal is used to distinguish different cells or different cell groups. There are at least two generalized ZC sequences with different root indexes in (N1+N2) generalized ZC sequences. A processing module performs a first sliding correlation operation and a second sliding correlation operation on the synchronization signal, and performs symbol timing synchronization according to a relationship between a sliding correlation peak generated when a sliding correlation is performed on the N1 generalized ZC sequences and a sliding correlation peak generated when a sliding correlation is performed on the N2 generalized ZC sequences.

Claim (Index 12):
The method according to  claim 11 , wherein\n before the first sliding correlation operation and the second sliding correlation operation are performed, the method further comprises: determining each frequency offset f i  that is in a frequency offset range of the current receiving device and that is an integer multiple of a symbol rate; the performing the first sliding correlation operation on the received synchronization signal by using the locally stored first generalized ZC sequence comprises: for each determined frequency offset f i , performing a sliding correlation operation on the received synchronization signal by using the first generalized ZC sequence, to obtain a sliding correlation peak Corr1_f i  in the frequency offset by means of calculation, wherein i=1, . . . , and P, i and P are positive integers, and P is a quantity of determined frequency offsets; the performing the second sliding correlation operation on the received synchronization signal by using each of at least two locally stored second generalized ZC sequences comprises: for each determined frequency offset f i , traversing each of the at least two locally stored second generalized ZC sequences; and for each traversed second generalized ZC sequence S j , performing a sliding correlation operation on the received synchronization signal by using the second generalized ZC sequence, to obtain a sliding correlation peak Corr2_f i _ S j  in the second generalized ZC sequence in the frequency offset by means of calculation, wherein j=1, . . . , and Q, j and Q are positive integers, and Q is a quantity of locally stored second generalized ZC sequences; and the performing symbol timing synchronization according to a result of each first sliding correlation operation and a result of each second sliding correlation operation comprises: determining, from all frequency offsets f i  according to each obtained sliding correlation peak Corr1_f i  and each obtained sliding correlation peak Corr2_f i _ S j , a frequency offset f 0  closest to an actual frequency offset and a second generalized ZC sequence S 0  that corresponds to the cell in which the current receiving device is located; and performing the symbol timing synchronization according to a time domain position of a sliding correlation peak Corr1_f 0  corresponding to the determined frequency offset f 0 , a time domain position of a sliding correlation peak Corr2_f 0 _ S 0  in the second generalized ZC sequence S 0  in the determined frequency offset f 0 , and a distance that is known in advance and that is between a time domain position of a start symbol occupied by the first generalized ZC sequence in the received signal and a time domain position of a start symbol occupied by the second generalized ZC sequence in the received signal.

Metadata:
- Claim Count in Document: 27.0
- Percentile: 91.0
- Lexical Diversity: 2.26866
- Patent Class: 370.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15933100', '15436510', '14780096', '15266794', '15433506']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.547196018528219
- 35 USC 102 Novelty (BERT): 0.5052990788138705
- Combined Prediction Score: 0.5430063245567841
- Mean Citation Score: 253.061248
- Max Citation Score: 276.5629
- Similarity Product: 227.5855383238316

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

Dataset: test