Patent ID: 7778611
Filing Date: 2010-08-17
Classification: H04B

Abstract:
1. A radio communication apparatus for performing transmission and reception of radio communications simultaneously by using different carrier frequencies for transmission and reception, the radio communication apparatus comprising: a transceiver comprising a coupling loop interference signal removal function for an analog domain and a coupling loop interference signal removal function for a digital domain, for removing a coupling loop interference signal contained in a signal; a power suppressor that couples loop interference signal for attenuating signal power of a signal generated following the analog domain coupling loop interference signal removal in order to suppress coupling loop interference signal power, wherein the power suppressor for coupling loop interference signal attenuates the signal power prior to the digital domain coupling loop interference signal removal in the transceiver; an uplink analog signal processor that performs predetermined processing on a signal of the uplink analog domain, the uplink analog signal processor comprising a first fluctuation determiner for received signal power for determining received power fluctuation speed by using the output signal after uplink analog domain interference removal; a downlink analog signal processor that performs predetermined processing on a signal of the downlink analog domain, the downlink analog signal processor comprising a second fluctuation determiner for received signal power for determining received power fluctuation speed by using the output signal after the downlink analog domain interference removal; an uplink digital signal processor that performs predetermined processing on the signal of the uplink digital domain, the uplink digital signal processor comprising, a downlink digital signal processor that performs predetermined processing on the signal of the downlink digital domain, the downlink digital signal processor comprising, wherein the radio communication apparatus is configured to use a predetermined uplink carrier frequency to perform transmission and reception simultaneously by means of the uplink digital signal processor and the uplink analog signal processor, and is configured to use a predetermined downlink carrier frequency to perform transmission and reception simultaneously by means of the downlink digital signal processor and the downlink analog signal processor, and wherein the radio communication apparatus is configured to control the simultaneous transmission and reception of signals at a predetermined uplink carrier frequency on the basis of the determination by the first transmission propriety/impropriety decider, and is configured to control the simultaneous transmission and reception of signals at a predetermined downlink carrier frequency on the basis of the determination by the second transmission propriety/impropriety decider.