Patent №
US 11,005,697
Granted
2021-05-11
Filed 2019
Owner
CISCO TECHNOLOGY, INC.
Lab
—
AI components
3
ml · vision · hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
16558942
Orthogonal frequency-division multiplexing (OFDM) equalization using a Deep Neural Network (DNN) may be provided. First, a signal in a packet structure may be received at an OFDM receiver from an OFDM transmitter. The signal may have distortion. Training constellation points, pilot constellation points, and data constellation points may be extracted from the signal based on the packet structure. Each data constellation point may correspond to a data subcarrier within a data symbol of the signal. Next, the training constellation points and the pilot constellation may be provided as input for the data symbol to a DNN. A coefficient for each data subcarrier within the data symbol that reverses the distortion may be received as output from the DNN. Then, the coefficient for each data subcarrier may be applied to the corresponding data constellation point to determine a per subcarrier constellation point prediction.
AI classification
Ownership
CISCO TECHNOLOGY, INC.
assignment · 502500444
Assignors
LISTON, ROBERT EDWARD, APOSTOLOPOULOS, JOHN GEORGE
On an employer assignment, the assignors are typically the inventors.