Wireless communication unit, integrated circuit and method therefor
First Claim
Patent Images
1. A wireless communication unit comprising:
- a transceiver;
at least one antenna port operably coupled to the transceiver via at least one antenna switch;
a signal generator for generating an RF test signal for calibration; and
a radio frequency part of the transceiver that comprises at least one tuneable radio frequency (RF) component;
wherein the radio frequency part comprises a coupler located between the at least one tuneable RF component and the at least one antenna switch for coupling the RF test signal to or from the at least one tuneable RF component for calibration; and
when the coupler couples the RF test signal to or from the at least one tuneable RF component for calibration, the at least one antenna switch disconnects the RF test signal from the at least one antenna port.
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Abstract
A wireless communication unit is described that includes a transceiver; at least one antenna port operably coupled to the transceiver via at least one antenna switch; a radio frequency part of the transceiver that includes at least one tuneable radio frequency (RF) component; and a test signal generator for generating an RF test signal for receiver calibration. The radio frequency part includes a coupler located between the at least one tuneable RF component and the at least one antenna switch for coupling the RF test signal to or from the radio frequency part for calibration.
11 Citations
21 Claims
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1. A wireless communication unit comprising:
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a transceiver; at least one antenna port operably coupled to the transceiver via at least one antenna switch; a signal generator for generating an RF test signal for calibration; and a radio frequency part of the transceiver that comprises at least one tuneable radio frequency (RF) component; wherein the radio frequency part comprises a coupler located between the at least one tuneable RF component and the at least one antenna switch for coupling the RF test signal to or from the at least one tuneable RF component for calibration; and
when the coupler couples the RF test signal to or from the at least one tuneable RF component for calibration, the at least one antenna switch disconnects the RF test signal from the at least one antenna port.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An integrated circuit comprising:
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a front end module having at least one antenna port operably coupled to a transceiver via at least one antenna switch; a radio frequency part of the transceiver that comprises at least one tuneable radio frequency (RF) component; an input port operably coupled to a test signal generator for receiving an RF test signal for calibration, wherein the RF test signal is generated by the test signal generator; wherein the radio frequency part comprises a coupler located between the at least one RF tuneable component and the at least one antenna switch for coupling the RF test signal to or from the at least one tuneable RF component for calibration; and
when the coupler couples the RF test signal to or from the at least one tuneable RF component for calibration, the at least one antenna switch disconnects the RF test signal from the at least one antenna port.- View Dependent Claims (16)
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17. A method of calibrating a transceiver comprising at least one tuneable radio frequency (RF) component and at least one antenna port operably coupled to at least one antenna switch via a receive path, the method comprising:
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generating an RF test signal for calibration of the transceiver; coupling the RF test signal into a location in between the at least one tuneable RF component and the at least one antenna switch; processing the RF test signal after passing through the at least one tuneable RF component; and performing calibration on the processed signal; wherein when the RF test signal is coupled to the at least one tuneable RF component for calibration, the method further comprises; utilizing the at least one antenna switch to disconnect the RF test signal from the at least one antenna port. - View Dependent Claims (18, 19, 20)
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21. A wireless communication unit comprising:
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a signal generator for generating an RF transmit signal for calibration; a transmitter that comprises a plurality of tuneable radio frequency (RF) components operably coupled to the signal generator; at least one multiple throw multiple pole antenna switch for receiving the RF transmit signal passed through one of the plurality of tuneable RF components at an input port; at least one antenna port operably coupled to the transmitter via the at least one first output port of the multiple throw multiple pole antenna switch; and a signal processor operably coupled to the transmitter via at least one second output port of the multiple throw multiple pole antenna switch for receiving and processing the RF transmit signal; wherein when the RF transmit signal is coupled to the one of the tuneable RF component for calibration, the at least one multiple throw multiple pole antenna switch disconnects the RF transmit signal from the at least one antenna port.
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Specification