Patent ID: 9300385
Filing Date: 2016-03-29
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. A communication device for receiving an orthogonal frequency division multiplexing (OFDM) signal from a transmitter having first and second antennas, comprising: a receiver to receive data signals and pilot signals transmitted via a plurality of subcarriers, the pilot signals including first pilot signals and second pilot signals, the first pilot signals being transmitted via the first antenna having first polarities, the second pilot signals being transmitted via the second antenna having second polarities, the first polarities being different from the second polarities, wherein the data signals are transmitted via a first beam formed by using first weights, the pilot signals are transmitted via a second beam formed by using second weights, the second weights are different from the first weights, and the data signals are transmitted via at least one of the first antenna and the second antenna.