US 2008/0293368 A1 · SHARED LNA AND PA GAIN CONTROL IN A WIRELESS DEVICE

Abstract

A wireless device includes at least one antenna, a plurality of shared signal path components coupled to the at least one antenna, the plurality of shared signal path components including a shared adjustable gain element, e.g., Low Noise Amplifier (LNA), Power Amplifier (PA), etc., a first wireless interface, e.g. Wireless Local Area Network interface coupled to the plurality of shared signal path components, and a second wireless interface, e.g., Wireless Personal Area Network interface, coupled to the plurality of shared signal path components. During a first operational period, the first wireless interface controls gain of the shared adjustable gain element and during a second operational period that differs from the first operational period, the second wireless network interface controls gain of the shared adjustable gain element. With another embodiment the first wireless interface and/or the second wireless interface each includes shared adjustable gain elements for transmit and receive diversity.

Claims47

Dependent claims

A wireless device comprising:

at least one antenna;
a plurality of shared signal path components coupled to the at least one antenna, the plurality of shared signal path components including a Low Noise Amplifier (LNA);
a first wireless interface coupled to the plurality of shared signal path components;
a second wireless interface coupled to the plurality of shared signal path components;
wherein during a first operational period, the first wireless interface controls LNA gain;
and
wherein during a second operational period that differs from the first operational period, the second wireless interface controls LNA gain.

4 more elements

A wireless device comprising:

a first wireless interface comprising:
first wireless interface processing circuitry;
a first wireless interface receive path that includes a first wireless interface Low Noise Amplifier (LNA) and that couples to the first wireless interface processing circuitry;
a first wireless interface transmit path that includes a first wireless interface Power Amplifier (PA);
and
at least one antenna that couples to the first wireless interface transmit path and to the first wireless interface receive path;
and
a second wireless interface comprising:
second wireless interface processing circuitry;
a second wireless interface receive path that includes a second wireless interface LNA and that couples to the second wireless interface processing circuitry;
a second wireless interface transmit path that includes a second wireless interface PA and that couples to the second wireless interface processing circuitry;
and
at least one antenna that couples to the second wireless interface receive path and to the second wireless interface transmit path;
and
wherein the first wireless interface selectively couples to at least one of the second wireless interface LNA and the second wireless interface PA.

12 more elements

A wireless device comprising:

at least one antenna;
a plurality of shared signal path components coupled to the at least one antenna, the plurality of shared signal path components including at least one shared adjustable gain element;
a first wireless interface coupled to the plurality of shared signal path components;
a second wireless interface coupled to the plurality of shared signal path components;
wherein during a first operational period, the first wireless interface controls gain of the at least one shared adjustable gain element;
and
wherein during a second operational period that differs from the first operational period, the second wireless interface controls gain of the at least one shared adjustable gain element.

4 more elements

A method for operating a wireless device that includes a least one antenna, a plurality of shared signal path components including at least one shared adjustable gain element, a first wireless interface coupled to the plurality of shared signal path components, and a second wireless interface coupled to the plurality of shared signal path components, the method comprising:

during a first operational period, the first wireless interface controlling gain of the at least one shred adjustable gain element;
and
during a second operational period that differs from the first operational period, the second wireless interface controlling gain of the at least one shared adjustable gain element.

Dependencies are inferred from the claim text.

Shared lna and pa gain control in a wireless device

Life of this patent

Shared lna and pa gain control in a wireless device

Life of this patent

Abstract

Claims47