Patent ID: 8588768

Claim:
A method, comprising: receiving signals using a receiver that supports, in a given frequency band, a first set of first communication channels each having a first channel bandwidth, and a second set of second communication channels each having a second channel bandwidth that is larger than the first channel bandwidth; measuring first Received Signal Strength Indications (RSSIs) for the respective first communication channels; computing second RSSIs for the respective second communication channels, by applying to a plurality of the first RSSIs an arithmetic computation comprising calculating a second RSSI for a respective second communication channel by summing the first RSSIs measured on a subset of the first communication channels overlapping the second communication channel, and multiplying a sum of the first RSSIs in the subset by a factor that depends on respective first and second channel filter shapes of the first and second communication channels; and selecting from among the first and second sets, using the measured first RSSIs and the computed second RSSIs, at least one of the communication channels over which to receive the signals at the receiver.