Measurement of local oscillation leakage in a radio frequency integrated circuit

An apparatus for measuring local oscillation leakage in a radio frequency integrated circuit (RFIC), the apparatus comprises:

• processing module;
• and
• memory operably coupled to the processing module, wherein the memory stores operational instructions that cause the processing module to:
• concurrently enable a transmitter portion of the RFIC and a receiver portion of the RFIC;
• provide a zero input to the transmitter portion, wherein the transmitter portion up converts the zero input via a mixer section to produce a radio frequency (RF) signal;
• detect the concurrent enablement of the transmitter portion and the receiver portion;
• measure received signal strength of the RF signal as received by the receiver portion upon detecting the concurrent enablement;
• and
• process the received signal strength over a predetermined time period to obtain a measure of the local oscillation leakage.

A radio frequency integrated circuit (RFIC) comprises:

• transmitter section operably coupled to convert outbound data into outbound radio frequency (RF) signals;
• receiver section operably coupled to convert inbound RF signals into inbound data;
• and
• local oscillation correction module operably coupled to:
• concurrently enable a transmitter portion of the RFIC and a receiver portion of the RFIC;
• provide a zero input to the transmitter portion, wherein the transmitter portion up converts the zero input via a mixer section to produce a radio frequency (RF) signal;
• detect the concurrent enablement of the transmitter portion and the receiver portion;
• measure received signal strength of the RF signal as received by the receiver portion upon detecting the concurrent enablement;
• and
• process the received signal strength over a predetermined time period to obtain a measure of the local oscillation leakage.