Patent ID: 9001713
Filing Date: 2015-04-07
Classification: H04B

Abstract:
1. A communication apparatus comprising: an antenna element; a communication unit that performs a transmission and reception processing of a wireless signal by using the antenna element; and one or more processors operable to generate a training frame composed of a first field described based on a first communication standard with a downward compatibility and a second field comprising a training signal for a communication partner provided with a plurality of antenna elements to learn a weight of an adaptive array antenna, the training frame to be transmitted from the communication unit, wherein the training frame is obtained by multiplexing the training signal on a payload section of a data frame of the first field regulated by the first communication standard, wherein the training signal comprising unique known sequences is transmitted in a signal arrangement through a phase rotation by 90 degrees such that information is transmitted in a form in which the payload section and the training signal are orthogonal to each other.