Radio communication apparatus, radio communication method, and non-transitory computer readable medium storing radio communication control program,申请号US201313851515-传众专利搜索

Radio communication apparatus, radio communication method, and non-transitory computer readable medium storing radio communication control program

申请公布号：US8838048(B2)

申请号：US201313851515

申请日期：2013.03.27

申请公布日期：2014.09.16

申请人：

NEC Casio Mobile Communications, Ltd.

发明人：Yamada Masaaki;Kitani Mitsuhiro

分类号：H04B7/02;H04B1/06;H04B7/08;H04B7/10;H04B7/06

主分类号：H04B7/02

代理机构：

Young & Thompson

代理人：Young & Thompson

地址：Kanagawa JP

摘要：A combination of antennas to be used is selected based on a distance between a plurality of antennas or the polarization direction of a radio signal to be transmitted/received.

主权项：1. A radio communication apparatus including an antenna set including a plurality of antennas and executing spatial-multiplexing based communication, comprising: an antenna selection unit that selects from the antennas a combination of antennas whose quantity is equal to or less than a quantity of counterpart antennas to be communicated, as a combination of antennas to be used in spatial-multiplexing based communication; a signal processing unit that executes signal processing for communication using the combination of antennas selected by the antenna selection unit; a reception quality detecting unit that detects a reception quality for each combination of a plurality of antennas; and a communication environment change detecting unit that detects a time-dependent change in a predetermined amount of variation in communication environment of the radio communication apparatus, wherein the antenna selection unit selects the combination of antennas to be used according to a result of comparison of reception qualities detected by the reception quality detecting unit, and varies a period of changing a combination of antennas to be selected, depending on whether the time-dependent change in the amount of variation detected by the communication environment change detecting unit is equal to or less than a predetermined reference value.