Adaptive antenna tuning systems and methods
First Claim
1. A method for tuning an antenna of a wireless communication device that includes the antenna and at least one tunable component that has an affect on the tuning of the antenna, the method comprising the steps of:
- determining one or more tuning selection inputs in conjunction with a wireless communication session that is supported by the wireless communication device, wherein the tuning selection inputs include one or more types of information selected from a group of information types that includes a call type indicating whether the wireless communication session is a voice communication session, a data communication session or another type of communication session, a speakerphone activation indicator, a speaker activation indicator, a Bluetooth activation indicator, a user identity, information characterizing a grip with which a user is holding the wireless communication device, information characterizing a physical proximity of the wireless communication device to the body of the user, a sensor input, and a signal-to-noise ratio (SNR) measurement;
determining, based on the tuning selection inputs, a component value for a component of the at least one tunable component, wherein the component value is determined from a set of pre-defined component values; and
setting the component to have the component value.
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Abstract
Embodiments include antenna tuning systems and methods of tuning an antenna of a wireless device with an antenna, a circuit with at least one tunable component, and a processing system. The processing system determines tuning selection inputs during a communication session. Based on the tuning selection inputs, the processing system determines one or more component values for one or more tunable components. In an embodiment, the component value(s) are determined from a set of pre-defined component values. The tunable component(s) are controlled to have the determined component value(s). The circuit may be an impedance matching circuit that includes at least one tunable reactive component. Alternatively, the circuit may be an antenna tuning circuit that includes at least one variable component. In an embodiment, both an impedance matching circuit and an antenna tuning circuit may be implemented, with each type of circuit having one or more tunable components.
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Citations
23 Claims
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1. A method for tuning an antenna of a wireless communication device that includes the antenna and at least one tunable component that has an affect on the tuning of the antenna, the method comprising the steps of:
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determining one or more tuning selection inputs in conjunction with a wireless communication session that is supported by the wireless communication device, wherein the tuning selection inputs include one or more types of information selected from a group of information types that includes a call type indicating whether the wireless communication session is a voice communication session, a data communication session or another type of communication session, a speakerphone activation indicator, a speaker activation indicator, a Bluetooth activation indicator, a user identity, information characterizing a grip with which a user is holding the wireless communication device, information characterizing a physical proximity of the wireless communication device to the body of the user, a sensor input, and a signal-to-noise ratio (SNR) measurement; determining, based on the tuning selection inputs, a component value for a component of the at least one tunable component, wherein the component value is determined from a set of pre-defined component values; and setting the component to have the component value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for tuning an antenna of a wireless communication device that includes the antenna and at least one tunable component that has an affect on the tuning of the antenna, the method comprising the steps of:
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determining one or more tuning selection inputs in conjunction with a wireless communication session that is supported by the wireless communication device; determining, based on the tuning selection inputs, a component value for a component of the at least one tunable component, wherein the component value is determined from a set of pre-defined component values that are stored in the device in a lookup table; setting the component to have the component value; determining whether the setting step resulted in an optimized tuning state; and when the setting step did not result in the optimized tuning state, determining a different component value for the at least one tunable component from the set of pre-defined component values, and setting the at least one tunable component to have the different component value. - View Dependent Claims (9)
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10. A method for tuning an antenna of a wireless communication device that includes the antenna and at least one tunable component that has an affect on the tuning of the antenna, the method comprising the steps of:
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determining one or more tuning selection inputs in conjunction with a wireless communication session that is supported by the wireless communication device; determining, based on the tuning selection inputs, a component value for a component of the at least one tunable component, wherein the component value is determined from a set of pre-defined component values, and the component value is determined to be a component value that results in an optimal region of a return loss curve being positioned between a transmit frequency and a receive frequency; and setting the component to have the component value. - View Dependent Claims (11, 12, 13)
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14. A method for tuning an antenna of a wireless communication device that includes the antenna and at least one tunable component that has an affect on the tuning of the antenna, the method comprising the steps of:
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predicting characteristics of a grip with which a user is holding the wireless communication device; determining, based on the characteristics of the grip, a component value for a component of the at least one tunable component, wherein the component value is determined from a set of pre-defined component values; and controlling the component to have the component value. - View Dependent Claims (15, 16, 17, 18)
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19. An antenna tuning system of a wireless communication device, the antenna tuning system comprising:
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an antenna; a circuit comprising at least one tunable component; and a processing system adapted to determine tuning selection inputs in conjunction with a communication session being supported by the wireless communication device, wherein the tuning selection inputs include one or more types of information selected from a group of information types that includes a call type indicating whether the wireless communication session is a voice communication session, a data communication session or another type of communication session, a speakerphone activation indicator, a speaker activation indicator, a Bluetooth activation indicator, a user identity, information characterizing a grip with which a user is holding the wireless communication device, information characterizing a physical proximity of the wireless communication device to the body of the user, a sensor input, and a signal-to-noise ratio (SNR) measurement determine, based on the tuning selection inputs, at least one component value for the at least one tunable component, wherein the at least one component value is determined from a set of pre-defined component values, and control the at least one tunable component to have the at least one component value. - View Dependent Claims (20, 21, 22, 23)
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Specification