PATENT CLAIM ANALYSIS

Application Number: 15982089
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["370", "331000"]

Abstract:
A method and apparatus are provided for performing acquisition, synchronization and cell selection within an MIMO-OFDM communication system. A coarse synchronization is performed to determine a searching window. A fine synchronization is then performed by measuring correlations between subsets of signal samples, whose first signal sample lies within the searching window, and known values. The correlations are performed in the frequency domain of the received signal. In a multiple-output OFDM system, each antenna of the OFDM transmitter has a unique known value. The known value is transmitted as pairs of consecutive pilot symbols, each pair of pilot symbols being transmitted at the same subset of sub-carrier frequencies within the OFDM frame.

Claim (Index 20):
An apparatus, comprising:\n a plurality of antennas; and an integrated circuit configured to transmit, from each antenna of the plurality of antennas, a set of subcarriers in an Orthogonal Frequency Domain Multiplexing (OFDM) symbol of a plurality of OFDM symbols in a slot of a frame, wherein the set of subcarriers from each antenna of the plurality of antennas is non-contiguous, wherein the frame contains data for one or more receivers and is one of a plurality of frames in an OFDM frame as part of a packet data frame structure; wherein the non-contiguous set of subcarriers for each antenna of the plurality of antennas comprises a first subset of subcarriers carrying one or more dedicated pilots, wherein each of the one or more dedicated pilots are modulated by a sequence that is related to a cell, wherein the first subset of subcarriers received from the plurality of antennas is non-overlapping; wherein the integrated circuit is further configured to transmit, in the slot, the set of subcarriers according to an OFDM symbol mode of a plurality of OFDM symbol modes, wherein the OFDM symbol mode determines a number of OFDM symbols per slot, with no change to a duration of the slot for each of the modes; wherein the frame comprises signaling information indicating whether the frame contains data for the one or more receivers; wherein at least the one or more dedicated pilots on the first subset of subcarriers enable cell selection or re-selection for the one or more receivers.

Metadata:
- Claim Count in Document: 64.0
- Percentile: 93.0
- Lexical Diversity: 1.69444
- Patent Class: 370.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15355440', '13944398', '10038915', '11529223', '11529222']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5724678265791223
- 35 USC 102 Novelty (BERT): 0.568317159946307
- Combined Prediction Score: 0.5720527599158408
- Mean Citation Score: 388.283116
- Max Citation Score: 443.23434
- Similarity Product: 419.613638084185

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