METHOD AND APPARATUS FOR PRIMARY CHANNEL DETECTION

摘要

Methods and apparatuses are provided for mitigating interference in a Wireless Local Access Network or WLAN that may be caused by a radio node. Signal measurements are monitored at frequencies corresponding to one or more WLAN channels in one or more frequency bands. It is determined, based on the signal measurements at the frequencies, whether there are any channels among possible primary and secondary channel pairings of the WLAN channels that are being used by the WLAN as secondary channels. Spectrum usage by the radio node is controlled in dependence on the determination.