US 6,487,419 B1 · Systems and methods for management of current consumption and performance in a receiver down converter of a wireless device

Abstract

Methods, systems and computer program products are provide which control the operation of a receiver of a wireless device so as to reduce the power consumption of the receiver by setting the third order intercept point of a low noise amplifier based upon at least one of a strength of a signal received by the wireless device or a transmission power of a transmitter of the wireless device. Furthermore, the gain of the low noise amplifier may also be set based upon received signal strength or transmitter power. Also, the gain of an amplifier associated with a mixer of the receiver may be set based upon received signal strength or transmitter power. Preferably, multiple power modes are provided to tailor the power consumption to the operating conditions of the wireless device.

Claims21

Dependent claims

A method of controlling the operation of a receiver of a wireless device so as to reduce the power consumption of the receiver, the method comprising:

setting the third order intercept point of a low noise amplifier based upon at least one of a strength of a signal received by the wireless device and a transmission power of a transmitter of the wireless device;
setting the gain of the low noise amplifier based upon at least one of a strength of a signal received by the wireless device and a transmission power of a transmitter of the wireless device;
setting the gain of an amplifier associated with a mixer of the receiver of the wireless device based upon at least one of a strength of a signal received by the wireless device and a transmission power of a transmitter of the wireless device;
and
wherein the steps of setting the third order intercept point, setting the gain of the low noise amplifier and setting the gain of the mixer amplifier, comprise the step of:
setting the third order intercept point of the low noise amplifier to a low third order intercept point, the gain of the low noise amplifier to a high gain and the gain of the mixer amplifier to a high gain if the transmitter is off.

3 more elements

A method of controlling the operation of a receiver of a wireless device so as to reduce the power consumption of the receiver, the method comprising:

setting the third order intercept point of a low noise amplifier based upon at least one of a strength of a signal received by the wireless device and a transmission power of a transmitter of the wireless device;
setting the gain of the low noise amplifier based upon at least one of a strength of a signal received by the wireless device and a transmission power of a transmitter of the wireless device;
setting the gain of an amplifier associated with a mixer of the receiver of the wireless device based upon at least one of a strength of a signal received by the wireless device and a transmission power of a transmitter of the wireless device;
and
wherein the steps of setting the third order intercept point, setting the gain of the low noise amplifier and setting the gain of the mixer amplifier, comprise the step of:
setting the third order intercept point of the low noise amplifier to a high third order intercept point, the gain of the low noise amplifier to a high gain and the gain of the mixer amplifier to a high gain if wireless device is operating in a CDMA mode and the transmitter is operating at an output power above a predefined threshold output power.

3 more elements

A down converter for a receiver of a wireless device, comprising:

a low noise amplifier;
means for setting the third order intercept point of the low noise amplifier based upon at least one of a strength of a signal received by the wireless device and a transmission power of a transmitter of the wireless device;
means for setting the gain of the low noise amplifier based upon at least one of a strength of a signal received by the wireless device and a transmission power of a transmitter of the wireless device;
an amplifier associated with a mixer of the receiver;
means for setting the gain of the amplifier associated with a mixer of the receiver of the wireless device based upon at least one of a strength of a signal received by the wireless device and a transmission power of a transmitter of the wireless device;
and
wherein said means for setting the third order intercept point, means for setting the gain of the low noise amplifier and means for setting the gain of the mixer amplifier, comprise:
means for setting the third order intercept point of the low noise amplifier to a high third order intercept point, the gain of the low noise amplifier to a high gain and the gain of the mixer amplifier to a high gain if wireless device is operating in a CDMA mode and the transmitter is operating at an output power above a predefined threshold output power.

5 more elements

Dependencies are inferred from the claim text.

Systems and methods for management of current consumption and performance in a receiver down converter of a wireless device

Life of this patent

Systems and methods for management of current consumption and performance in a receiver down converter of a wireless device

Life of this patent

Abstract

Claims21