High linearity modes in wireless receivers

A wireless device comprising:

• one or more transmitters configured to transmit a plurality of transmit signals;
• a receiver comprising an attenuator, an amplifier having an input coupled to an output of the attenuator, a mixer having a first input coupled to an output of the amplifier, a local oscillator having an output coupled to a second input of the mixer, and a baseband filter having an input coupled to an output of the mixer;
• at least one processor coupled to the receiver;
• and
• a memory coupled to the at least one processor and storing computer-executable instructions, which, when executed by the at least one processor, perform an operation comprising:
• operating the one or more transmitters and the receiver in a first mode, the operating comprising transmitting the plurality of transmit signals using the one or more transmitters;
• attenuating a received signal via the attenuator while operating in the first mode;
• amplifying the attenuated signal with the amplifier while operating in the first model;
• operating the one or more transmitters and the receiver in a second mode, different from the first mode;
• bypassing the attenuator while operating in the second mode;
• amplifying the received signal with the amplifier while operating in the second mode;
• mixing the amplified signal from the amplifier with a local oscillator signal from the local oscillator;
• and
• filtering the mixed signal using the baseband filter, wherein:
• the baseband filter has a first gain while operating in the first mode;
• the baseband filter has a second gain while operating in the second mode;
• and
• the first gain is greater than the second gain.

An apparatus comprising:

• means for concurrently transmitting a plurality of transmit signals;
• means for controlling operation of the apparatus in a first mode, wherein operation in the first mode comprises concurrently transmitting the plurality of transmit signals using the means for concurrently transmitting;
• means for attenuating a received signal during operation of the apparatus in the first mode;
• means for amplifying the attenuated signal during operation of the apparatus in the first mode;
• means for controlling operation of the apparatus in a second mode, different from the first mode;
• means for bypassing the means for attenuating during operation of the apparatus in the second mode, wherein the means for amplifying is configured to amplify the received signal during operation of the apparatus in the second mode;
• means for mixing the amplified signal from the means for amplifying with a local oscillator signal;
• and
• means for filtering the mixed signal, wherein:
• the means for filtering has a first gain during operation of the apparatus in the first mode;
• the means for filtering has a second gain during operation of the apparatus in the second mode;
• and
• the first gain is greater than the second gain.