公开(公告)号：US09642100B2

公开(公告)日：2017-05-02

申请号：US14773598

申请日：2014-02-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naotake Yamamoto ,  Yoichi Masuda ,  Tetsuya Hishikawa

IPC: H04W52/42 ,  H04B7/06 ,  H04W4/00 ,  H04W52/36

CPC classification number: H04W52/42 ,  H04B7/0608 ,  H04B7/061 ,  H04W4/70 ,  H04W52/367 ,  Y02D70/00

Abstract: A wireless communication device has an aim of specifying, when transmitting data to another communication device, an antenna among antennas that can transmit data at a low transmission power. The wireless communication device switches between a first antenna and a second antenna upon transmission of a request signal to the other communication device, and increases or decreases transmission power for transmitting the request signal when switching between the first antenna and the second antenna.