Patent ID: 8761228

Claim:
A communication device comprising: a processor; a receiver operable in wide channels in a radio frequency band; a first antenna coupled to the receiver; a transmitter coupled to the processor, the transmitter operable in narrow channels in the radio frequency band, the processor implementing a frequency hopping spread-spectrum technique among those of the narrow channels marked in a channel map as available and excluding those of the narrow channels marked in the channel map as unavailable; a second antenna coupled to the transmitter; and non-volatile memory storing adjacent channel rejection ‘ACR’ information that characterizes tolerance of the receiver to adjacent channel interference ‘ACI’ caused by transmissions from the transmitter through the second antenna, wherein in the event of reception by the receiver of signals over one of the wide channels, the communication device is to mark in the channel map as unavailable one or more of the narrow channels outside the one of the wide channels, based on the ACR information, on the transmit power of the transmitter, and on the strength of the signals as received by the receiver on the one of the wide channels.