Patent ID: 9503960
Filing Date: 2016-11-22
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. A radio communication apparatus comprising: a detector that detects an interfering wave using a plurality of symbols including symbols configuring a preamble and symbols configuring a control signal field, within a received signal including the preamble on which pilot signals are multiplexed and the control signal field on which a control signal modulated by a modulation scheme that uses a same phase as or a phase in quadrature with a phase of the pilot signals is arranged, the received signal having one of a plurality of transmission formats that use at least one of a first frequency band and a second frequency band; and a controller that, when the interfering wave is detected, suppresses an effect of the interfering wave upon the received signal, wherein the detector and the controller are implemented with one or more physical computing resources, and the detector includes a differential calculator that calculates, in each of the first frequency band and the second frequency band, respective differences between adjacent two symbols of a certain number of symbols at predetermined positions in a time domain among the plurality of symbols, a square operator that performs square operations on results of the calculation of differences, and a determiner that determines, using results of the square operations, whether the interfering wave is detected in each of the first frequency band and the second frequency band.