Patent ID: 8359530
Filing Date: 2013-01-22
Classification: H04L

Abstract:
1. A wireless communication apparatus that operates in a network environment in which a plurality of different packet formats are present, the apparatus comprising: a first format detecting unit that detects a format by executing signal processing on a preamble of a received packet before decoding; an estimating unit that uses the preamble of the received packet to calculate multiple types of estimations; a decoding unit that decodes the received packet in accordance with the format detected by the first format detecting unit on the basis of the estimations calculated by the estimating unit; a second format detecting unit that detects the format of the received packet on the basis of control (SIG) information in the preamble of the received packet decoded by the decoding unit; an error detection determination unit that, when the format detected by the first format detecting unit differs from the format detected by the second format detecting unit, determines that the format detected by the first format detecting unit is an error; and a control unit that controls operations of the estimating unit and the decoding unit on the basis of a result determined by the error detection determination unit.