| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a communication device capable of improving communication quality by selecting an optimum antenna in transmission and reception. <P>SOLUTION: A communication device of the invention transmitting/receiving a radio frame signal including a preamble section and a data section comprises: a plurality of antennas 11 and 12; usage antenna selection means (PR detection part 5, control part 8, and antenna switching part 10) for calculating an SINR for each antenna by repeatedly executing processing of receiving known series by using either antenna of the plurality of antennas in the preamble section included by a radio frame, and selecting an antenna having the maximum SINR as an antenna to be used for receiving data; and a storage part 9 storing the antenna selected by the usage antenna selection means as an antenna to be used for radio frame signal transmission to a communication device that is a transmission source of the known series received in calculating the SINR. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
