System and method for dynamic output back-off

A device comprising:

• a gain adjustment portion operable to output one of a first gain adjustment signal based on a first packet of a first modulation type and a second gain adjustment signal based on a second packet of a second modulation type;
• a gain portion operable to output a first signal corresponding to the first packet and to output a second signal corresponding to the second packet, the first signal being based on an input signal and a first gain factor, the second signal based on the input signal and a second gain factor;
• a phase rotating portion operable to output a phase-rotated in-phase signal and a phase-rotated quadrature signal, the phase-rotated in-phase signal being based on the in-phase portion, the phase-rotated quadrature signal being based on the quadrature portion;
• a phase compensating portion operable to output one of an adjusted in-phase signal and an adjusted quadrature signal, the adjusted in-phase signal being based on the phase-rotated in-phase signal, the adjusted quadrature signal being based on the phase-adjusted quadrature signal;
• and
• a delay portion operable to output a delay signal to said gain adjustment portion based on the input signal,
• wherein the first gain factor is based on the first gain adjustment signal,
• wherein the second gain factor is based on the second gain adjustment signal,
• wherein the input signal includes an in-phase portion and a quadrature portion,
• wherein said gain adjustment portion is operable to output the first gain adjustment signal as a first in-phase gain adjustment signal based on the first packet and a first quadrature gain adjustment signal based on the first packet,
• wherein said gain adjustment portion is operable to output the second gain adjustment signal as a second in-phase gain adjustment signal based on the second packet and a second quadrature gain adjustment signal based on the second packet,
• wherein said gain portion is operable to output the first signal as an in-phase signal corresponding to the first packet and a quadrature signal corresponding to the first packet,
• wherein said gain portion is operable to output the second signal as an in-phase signal corresponding to the second packet and a quadrature signal corresponding to the second packet,
• wherein the first gain factor includes a first in-phase gain factor and a first quadrature gain factor, the first in-phase gain factor being based on the first in-phase gain adjustment signal, the first quadrature gain factor being based on the first quadrature gain adjustment signal,
• wherein the second gain factor includes a second in-phase gain factor and a second quadrature gain factor, the second in-phase gain factor being based on the second in-phase gain adjustment signal, the second quadrature gain factor being based on the second quadrature gain adjustment signal,
• wherein the in-phase signal corresponding to the first packet is based on the in-phase portion and the first in-phase gain factor,
• wherein the quadrature signal corresponding to the first packet is based on the quadrature portion and the first quadrature gain factor,
• wherein the in-phase signal corresponding to the second packet is based on the in-phase portion and the second in-phase gain factor,
• wherein the quadrature signal corresponding to the second packet is based on the quadrature portion and the second quadrature gain factor,
• wherein the first in-phase gain factor is based on the first in-phase gain adjustment signal,
• wherein the first quadrature gain factor is based on the first quadrature gain adjustment signal,
• wherein the second in-phase gain factor is based on the second in-phase gain adjustment signal, and
• wherein the second quadrature gain factor is based on the second quadrature gain adjustment signal,
• wherein said gain adjustment portion is operable to output the first gain adjustment signal, the second gain adjustment signal, the third gain adjustment signal and the fourth gain adjustment signal based on the delay signal,
• wherein said gain portion is operable to output the in-phase signal corresponding to the first packet based on the one of adjusted in-phase signal and phase-rotated in-phase signal,
• wherein said gain portion is operable to output the in-phase signal corresponding to the second packet based on the one of adjusted in-phase signal and phase-rotated in-phase signal,
• wherein said gain portion is operable to output the quadrature signal corresponding to the first packet based on the other of phase-rotated quadrature signal and adjusted quadrature portion, and
• wherein said gain portion is operable to output the quadrature signal corresponding to the second packet based on the other of phase-rotated quadrature signal and adjusted quadrature portion.

A method of adjusting an input signal, said method comprising:

• outputting, via a gain adjustment portion, one of a first gain adjustment signal based on a first packet of a first modulation type and a second gain adjustment signal based on a second packet of a second modulation type;
• outputting, via a gain portion, a first signal corresponding to the first packet, the first signal being based on an input signal and a first gain factor;
• outputting, via the gain portion, a second signal corresponding to the second packet, the second signal based on the input signal and a second gain factor, wherein the input signal includes an in-phase portion and a quadrature portion;
• outputting, via a phase rotating portion, a phase-rotated in-phase signal and a phase-rotated quadrature signal, the phase-rotated in-phase signal being based on the in-phase portion, the phase-rotated quadrature signal being based on the quadrature portion;
• outputting, via a phase compensating portion, one of an adjusted in-phase signal and an adjusted quadrature signal, the adjusted in-phase signal being based on the phase-rotated in-phase signal, the adjusted quadrature signal being based on the phase-adjusted quadrature signal;
• and
• outputting, via a delay portion, a delay signal to the gain adjustment portion based on the input signal,
• wherein the first gain factor is based on the first gain adjustment signal,
• wherein the second gain factor is based on the second gain adjustment signal,
• wherein the first gain factor is the same as the second gain factor,
• wherein said gain adjustment portion is operable to output the first gain adjustment signal as a first in-phase gain adjustment signal based on the first packet and a first quadrature gain adjustment signal based on the first packet,
• wherein said gain adjustment portion is operable to output the second gain adjustment signal as a second in-phase gain adjustment signal based on the second packet and a second quadrature gain adjustment signal based on the second packet,
• wherein said gain portion is operable to output the first signal as an in-phase signal corresponding to the first packet and a quadrature signal corresponding to the first packet,
• wherein said gain portion is operable to output the second signal as an in-phase signal corresponding to the second packet and a quadrature signal corresponding to the second packet,
• wherein the first gain factor includes a first in-phase gain factor and a first quadrature gain factor, the first in-phase gain factor being based on the first in-phase gain adjustment signal, the first quadrature gain factor being based on the first quadrature gain adjustment signal,
• wherein the second gain factor includes a second in-phase gain factor and a second quadrature gain factor, the second in-phase gain factor being based on the second in-phase gain adjustment signal, the second quadrature gain factor being based on the second quadrature gain adjustment signal,
• wherein the in-phase signal corresponding to the first packet is based on the in-phase portion and the first in-phase gain factor,
• wherein the quadrature signal corresponding to the first packet is based on the quadrature portion and the first quadrature gain factor,
• wherein the in-phase signal corresponding to the second packet is based on the in-phase portion and the second in-phase gain factor,
• wherein the quadrature signal corresponding to the second packet is based on the quadrature portion and the second quadrature gain factor,
• wherein the first in-phase gain factor is based on the first in-phase gain adjustment signal,
• wherein the first quadrature gain factor is based on the first quadrature gain adjustment signal,
• wherein the second in-phase gain factor is based on the second in-phase gain adjustment signal, and
• wherein the second quadrature gain factor is based on the second quadrature gain adjustment signal,
• wherein said outputting the first gain adjustment signal and the second gain adjustment signal comprises outputting the first gain adjustment signal and the second gain adjustment signal based on the delay signal,
• wherein said outputting the third gain adjustment signal and the fourth gain adjustment signal comprises outputting the third gain adjustment signal and the fourth gain adjustment signal based on the delay signal,
• wherein said outputting the in-phase signal comprises outputting the in-phase signal corresponding to the first packet based on one of the adjusted in-phase signal and the phase-rotated in-phase signal,
• wherein said outputting the quadrature signal corresponding to the first packet comprises outputting the quadrature signal corresponding to the first packet based on the other of phase-rotated quadrature signal and adjusted quadrature portion,
• wherein said outputting the in-phase signal corresponding to the second packet comprises outputting the in-phase signal corresponding to the second packet based on the one of adjusted in-phase signal and phase-rotated in-phase signal, and
• wherein said outputting the quadrature signal corresponding to the second packet comprises outputting the quadrature signal corresponding to the second packet based on the other of phase-rotated quadrature signal and adjusted quadrature portion.

A method of adjusting an input signal, said method comprising:

• outputting, via a gain adjustment portion, one of a first gain adjustment signal based on a first packet of a first modulation type and a second gain adjustment signal based on a second packet of a second modulation type;
• outputting, via a gain portion, a first signal corresponding to the first packet, the first signal being based on an input signal and a first gain factor;
• outputting, via the gain portion, a second signal corresponding to the second packet, the second signal based on the input signal and a second gain factor;
• outputting, via a phase rotating portion, a phase-rotated in-phase signal and a phase-rotated quadrature signal, the phase-rotated in-phase signal being based on the in-phase portion, the phase-rotated quadrature signal being based on the quadrature portion;
• outputting, via a phase compensating portion, one of an adjusted in-phase signal and an adjusted quadrature signal, the adjusted in-phase signal being based on the phase-rotated in-phase signal, the adjusted quadrature signal being based on the phase-adjusted quadrature signal;
• and
• outputting, via a delay portion, a delay signal to the gain adjustment portion based on the input signal,
• wherein the first gain factor is based on the first gain adjustment signal,
• wherein the second gain factor is based on the second gain adjustment signal,
• wherein said outputting the first gain adjustment signal and the second gain adjustment signal comprises outputting the first gain adjustment signal and the second gain adjustment signal based on the delay signal,
• wherein said outputting the third gain adjustment signal and the fourth gain adjustment signal comprises outputting the third gain adjustment signal and the fourth gain adjustment signal based on the delay signal,
• wherein said outputting the in-phase signal corresponding to the first packet comprises outputting the in-phase signal corresponding to the first packet based on the one of adjusted in-phase signal and phase-rotated in-phase signal,
• wherein said outputting the quadrature signal corresponding to the first packet comprises outputting the quadrature signal corresponding to the first packet based on the other of phase-rotated quadrature signal and adjusted quadrature portion,
• wherein said outputting the in-phase signal corresponding to the second packet comprises outputting the in-phase signal corresponding to the second packet based on the one of adjusted in-phase signal and phase-rotated in-phase signal, and
• wherein said outputting the quadrature signal corresponding to the second packet comprises outputting the quadrature signal corresponding to the second packet based on the other of phase-rotated quadrature signal and adjusted quadrature portion.

A non-transitory computer readable storage medium carrying one or more sequences of one or more instructions which, when executed by one or more processors, cause an apparatus to at least perform the following steps:

• outputting, via a gain adjustment portion, one of a first gain adjustment signal based on a first packet of a first modulation type and a second gain adjustment signal based on a second packet of a second modulation type;
• outputting, via a gain portion, a first signal corresponding to the first packet, the first signal being based on an input signal and a first gain factor;
• outputting, via the gain portion, a second signal corresponding to the second packet, the second signal based on the input signal and a second gain factor, wherein the input signal includes an in-phase portion and a quadrature portion;
• outputting, via a phase rotating portion, a phase-rotated in-phase signal and a phase-rotated quadrature signal, the phase-rotated in-phase signal being based on the in-phase portion, the phase-rotated quadrature signal being based on the quadrature portion;
• outputting, via a phase compensating portion, one of an adjusted in-phase signal and an adjusted quadrature signal, the adjusted in-phase signal being based on the phase-rotated in-phase signal, the adjusted quadrature signal being based on the phase-adjusted quadrature signal;
• and
• outputting, via a delay portion, a delay signal to the gain adjustment portion based on the input signal,
• wherein the first gain factor is based on the first gain adjustment signal,
• wherein the second gain factor is based on the second gain adjustment signal,
• wherein the first gain factor is the same as the second gain factor,
• wherein said gain adjustment portion is operable to output the first gain adjustment signal as a first in-phase gain adjustment signal based on the first packet and a first quadrature gain adjustment signal based on the first packet,
• wherein said gain adjustment portion is operable to output the second gain adjustment signal as a second in-phase gain adjustment signal based on the second packet and a second quadrature gain adjustment signal based on the second packet,
• wherein said gain portion is operable to output the first signal as an in-phase signal corresponding to the first packet and a quadrature signal corresponding to the first packet,
• wherein said gain portion is operable to output the second signal as an in-phase signal corresponding to the second packet and a quadrature signal corresponding to the second packet,
• wherein the first gain factor includes a first in-phase gain factor and a first quadrature gain factor, the first in-phase gain factor being based on the first in-phase gain adjustment signal, the first quadrature gain factor being based on the first quadrature gain adjustment signal,
• wherein the second gain factor includes a second in-phase gain factor and a second quadrature gain factor, the second in-phase gain factor being based on the second in-phase gain adjustment signal, the second quadrature gain factor being based on the second quadrature gain adjustment signal,
• wherein the in-phase signal corresponding to the first packet is based on the in-phase portion and the first in-phase gain factor,
• wherein the quadrature signal corresponding to the first packet is based on the quadrature portion and the first quadrature gain factor,
• wherein the in-phase signal corresponding to the second packet is based on the in-phase portion and the second in-phase gain factor,
• wherein the quadrature signal corresponding to the second packet is based on the quadrature portion and the second quadrature gain factor,
• wherein the first in-phase gain factor is based on the first in-phase gain adjustment signal,
• wherein the first quadrature gain factor is based on the first quadrature gain adjustment signal,
• wherein the second in-phase gain factor is based on the second in-phase gain adjustment signal, and
• wherein the second quadrature gain factor is based on the second quadrature gain adjustment signal,
• wherein said outputting the first gain adjustment signal and the second gain adjustment signal comprises outputting the first gain adjustment signal and the second gain adjustment signal based on the delay signal,
• wherein said outputting the third gain adjustment signal and the fourth gain adjustment signal comprises outputting the third gain adjustment signal and the fourth gain adjustment signal based on the delay signal,
• wherein said outputting the in-phase signal corresponding to the first packet comprises outputting the in-phase signal corresponding to the first packet based on one of the adjusted in-phase signal and the phase-rotated in-phase signal,
• wherein said outputting the quadrature signal corresponding to the first packet comprises outputting the quadrature signal corresponding to the first packet based on the other of phase-rotated quadrature signal and adjusted quadrature portion,
• wherein said outputting the in-phase signal corresponding to the second packet comprises outputting the in-phase signal corresponding to the second packet based on the one of adjusted in-phase signal and phase-rotated in-phase signal, and
• wherein said outputting the quadrature signal corresponding to the second packet comprises outputting the quadrature signal corresponding to the second packet based on the other of phase-rotated quadrature signal and adjusted quadrature portion.