Interference cancellation of a narrow bank interferer in a wide band communication device

A wide band radio, comprising:

• a wide band radio section for receiving a wide band radio packet that can include one or more narrow band radio packets transmitted by one or more narrow band systems;
• a plurality of filters each having an output, the plurality of filters are coupled to the wide band radio section;
• and
• a decision circuit coupled to the outputs of the plurality of filters, the decision circuit monitors the outputs of the plurality of filters in order to determine if one or more narrow band packets are included with the wide band radio packet that is received by the wide band radio section, if one or more narrow band packets are detected, the decision circuit sends a signal to the wide band radio section to remove the one or more narrow band packet from the received wide band packet prior to further decoding of the wide band packet.

A method of suppressing one or more narrow band packets that are found in a wide band packet received by a wide band radio, comprising the steps of:

• (a) providing a plurality of narrow band detection circuits each one capable of detecting a narrow band packet within a portion of the wide band radio's bandwidth;
• (b) determining if one of the narrow band detection circuits has detected a narrow band packet;
• and
• (c) suppressing the one or more narrow band packets from the wide band packet if in step (b) one or more of the narrow band detection circuits has detected a narrow band packet.