Patent ID: 8862068
Filing Date: 2014-10-14
Classification: H04W

Abstract:
1. A wireless apparatus comprising: a radio frequency (RF) circuit, being configured to receive at least one RF signal from a primary channel and a secondary channel; and a processing circuit, being electrically connected to the RF circuit and configured to determine that the wireless apparatus operates in a first bandwidth mode, count a first clear channel assessment (CCA) number associated with the primary channel, a second CCA number associated with the secondary channel, an entire CCA number associated with at least one of the primary channel and the secondary channel and a false alarm (FA) number according to the at least one RF signal, determine that the second CCA number exceeds a summation of the first CCA number and a bias number so as to determine that the wireless apparatus is in an interference state, and determine that the interference state belongs to one of a first interference type and a second interference type according to a ratio of the entire CCA number to the FA number.