Measuring received signal strength on neighboring frequencies of a channel with interference in a wireless device

A wireless narrowband receiver, comprising:

• an antenna for receiving a signal on a channel of the wireless narrowband receiver, wherein at least a portion of the signal is received from a first wireless narrowband transmitter, wherein the wireless narrowband receiver implements an adaptive frequency hopping algorithm;
• signal processing logic coupled to the antenna, wherein the signal processing logic is configured to receive the signal from the antenna, wherein the signal processing logic is configured to:
• determine if interference is present on the channel and one or more errors are detected in receiving the signal;
• measure received signal strength of one or more neighboring frequencies of the channel in response to a determination that interference is present on the channel and one or more errors are detected in receiving the signal;
• a memory, coupled to the signal processing logic, for storing the measurements of received signal strength of the one or more neighboring frequencies;
• wherein the measurements are used to determine if a source of the interference is a wireless wideband transmitter or a second wireless narrowband transmitter.

A method for operating a wireless receiver,

• receiving a signal on a channel of the wireless receiver, wherein at least a portion of the signal is received from a first wireless transmitter,
• determining if interference is present on the channel of the wireless receiver and the received signal is uncorrelated;
• in response to determining that interference is present on the channel of the wireless receiver and the received signal is uncorrelated, measuring received signal strength of one or more neighboring frequencies of the channel;
• storing the measurements of received signal strength of the one or more neighboring frequencies in a memory;
• wherein the measurements are used to determine the source type of the interference.