Tuning matching circuits for transmitter and receiver bands as a function of transmitter metrics
First Claim
1. A method for controlling a matching circuit for interfacing an antenna with a transceiver in a communication device, the matching circuit including at least one variable component, the method comprising:
- obtaining at least one operational metric for a transmitter;
calculating a current figure of merit as a function of the at least one operational metric;
determining a target figure of merit based on a weighted combination of measured metrics associated with the communication device;
comparing the current figure of merit to the target figure of merit; and
adjusting a setting of the at least one variable component to a value expected to change the current figure of merit relative to the target figure of merit, whereby the receiver operation and transmitter operation are adjusted based on transmitter operational metrics without utilizing operational metrics measured for the receiver operation.
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Accused Products
Abstract
A tunable matching circuit is adjusted primarily based on transmitter oriented metrics and is then applied to attain a desired tuning for transmitter and receiver operation. In a TDM system, this is accomplished by identifying an optimal tuning for the transmitter and then applying an empirically derived adjustment to the tuning circuit in receiver mode. In an FDM system, this is accomplished by identifying a target operation that is a compromise between transmitter performance and receiver performance, and then adjusting the tuning circuit as a function of transmitter metrics and the current tuning values to achieve the desired compromised performance.
222 Citations
23 Claims
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1. A method for controlling a matching circuit for interfacing an antenna with a transceiver in a communication device, the matching circuit including at least one variable component, the method comprising:
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obtaining at least one operational metric for a transmitter; calculating a current figure of merit as a function of the at least one operational metric; determining a target figure of merit based on a weighted combination of measured metrics associated with the communication device; comparing the current figure of merit to the target figure of merit; and adjusting a setting of the at least one variable component to a value expected to change the current figure of merit relative to the target figure of merit, whereby the receiver operation and transmitter operation are adjusted based on transmitter operational metrics without utilizing operational metrics measured for the receiver operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification