Method and system for polar modulating OFDM signals with discontinuous phase
Aspects of a method and system for polar modulating OFDM signals with discontinuous phase may include amplifying an OFDM signal via a plurality of amplifiers such that a combined gain of the plurality of amplifiers comprises a coarse amplitude gain and an amplitude offset gain. A gain of one or more of the plurality of amplifiers may be adjusted to set the coarse amplitude gain, and a gain of one or more remaining ones of the plurality of amplifiers may be adjusted to set the amplitude offset gain. The setting of the coarse amplitude gain and/or the amplitude offset gain may be adjusted dynamically and/or adaptively.
1. A method for processing communication signals, the method comprising:
amplifying an Orthogonal Frequency Division Multiplexing (OFDM) signal via a plurality of amplifiers such that a combined gain of said plurality of amplifiers comprises a coarse amplitude gain and an amplitude offset gain;
adjusting a gain of one or more of said plurality of amplifiers between unity gain and an arbitrary fixed gain to set said coarse amplitude gain; and
adjusting a gain of one or more remaining ones of said plurality of amplifiers to set said amplitude offset gain.
2. The method according to claim 1 , comprising dynamically adjusting said setting of said coarse amplitude gain and/or said amplitude offset gain.
3. The method according to claim 1 , comprising adaptively adjusting said setting of said coarse amplitude gain and/or said amplitude offset gain.
4. The method according to claim 1 , wherein said gain of said one or more remaining ones of said plurality of amplifiers associated with said amplitude offset gain is variable and arbitrary.
5. The method according to claim 1 , wherein said gain of said one or more of said remaining ones of said plurality of amplifiers associated with said amplitude offset gain is variable and discrete.
6. The method according to claim 1 , wherein said one or more remaining ones of said plurality of amplifiers associated with said amplitude offset gain comprises one or more analog amplifiers.
7. The method according to claim 1 , comprising phase-modulating a radio-frequency carrier to generate said signal.
8. The method according to claim 1 , comprising controlling said combined gain of said plurality of amplifiers based on a desired amplitude modulation.
9. The method according to claim 1 , wherein an integrated circuit comprises said plurality of amplifiers.
10. A system for processing communication signals, the system comprising:
one or more circuits comprising a plurality of amplifiers, said one or more circuits enable:
amplification of an Orthogonal Frequency Division Multiplexing (OFDM) signal via said plurality of amplifiers such that a combined gain of said plurality of amplifiers comprises a coarse amplitude gain and an amplitude offset gain;
adjustment of a gain of one or more of said plurality of amplifiers between unity gain and an arbitrary fixed gain to set said coarse amplitude gain; and
adjustment of a gain of one or more remaining ones of said plurality of amplifiers to set said amplitude offset gain.
11. The system according to claim 10 , wherein said one or more circuits dynamically adjust said setting of said coarse amplitude gain and/or said amplitude offset gain.
12. The system according to claim 10 , wherein said one or more circuits adaptively adjust said setting of said coarse amplitude gain and/or said amplitude offset gain.
13. The system according to claim 10 , wherein said gain of said one or more remaining ones of said plurality of amplifiers associated with said amplitude offset gain is variable and arbitrary.
14. The system according to claim 10 , wherein said gain of said one or more of said remaining ones of said plurality of amplifiers associated with said amplitude offset gain is variable and discrete.
15. The system according to claim 10 , wherein said one or more remaining ones of said plurality of amplifiers associated with said amplitude offset gain comprises one or more analog amplifiers.
16. The system according to claim 10 , wherein said one or more circuits phase-modulate a radio-frequency carrier to generate said signal.
17. The system according to claim 10 , wherein said one or more circuits control said combined gain of said plurality of amplifiers based on a desired amplitude modulation.
18. The system according to claim 10 , wherein an integrated circuit comprises said plurality of amplifiers.