Method and system for implementing a single weight (SW) single channel (SC) MIMO system
View Patent ↗Methods and systems for processing signals in a receiver are disclosed herein and may comprise generating at least one control signal that may be utilized to control a first received signal. A phase of the first received signals may be adjusted via the generated control signal so that the phase of the first received signal may be equivalent to a phase of a second received signal, where the phase of the first signal may be adjusted within a processing path used to process the first received signal. An amplitude of the first received signal may be adjusted via the generated control signal so that the amplitude of the first received signal may be equivalent to an amplitude of a second received signal, where the amplitude of the first signal is adjusted within the processing path used to process the first received signal.
1. A method for processing signals in a receiver, the method comprising:
receiving a plurality of signals at a phase shifter;
generating a control signal based on a channel estimate of a time varying impulse response or signal timing information associated with a digitized baseband signal corresponding to a first and a second of said plurality of received signals;
feeding the generated control signal back to said phase shifter; and
adjusting, at said phase shifter, a characteristic of said first of said plurality of received signals based on said generated control signal so that said characteristic of said first of said plurality of received signals is substantially equivalent to a characteristic of said second of said plurality of received signals.
2. The method according to claim 1 , wherein said characteristic of said first of said plurality of received signals is at least one of a phase and an amplitude of said first of said plurality of received signals, and wherein said characteristic of at least said second of said plurality of received signals is at least one of a phase and an amplitude of at least said second of said plurality of received signals.
3. The method according to claim 1 , wherein said generated control signal comprises a single weight signal.
4. The method according to claim 1 , wherein said characteristic of said first of said plurality of received signals is adjusted continuously.
5. The method according to claim 1 , wherein said characteristic of said first of said plurality of received signals is adjusted at discrete intervals.
6. The method according to claim 1 , further comprising amplifying said first of said plurality of received signals so that a gain of said first of said plurality of received signals is equivalent to a gain of at least said second of said plurality of received signals.
7. The method according to claim 1 , further comprising combining said adjusted first of said plurality of received signals with at least said second of said plurality of received signals to generate a combined received signal.
8. The method according to claim 1 , further comprising generating said channel estimate of said time varying impulse response for said first of said plurality of received signals on a per base station basis.
9. The method according to claim 1 , further comprising generating said control signal utilizing an optimization algorithm that comprises one or more of a maximum signal-to-noise ratio (SNR) algorithm, a maximum signal-to-interference-and-noise ratio (SINR) algorithm, or a minimum bit error rate (BER) algorithm.
10. A non-transitory machine-readable storage having stored thereon a code section that when executed by a machine causes the machine to perform steps comprising:
receiving a plurality of signals at a phase shifter included in the machine;
generating a control signal based on a channel estimate of a time varying impulse response or signal timing information associated with a digitized baseband signal corresponding to a first and a second of said plurality of received signals;
feeding the generated control signal back to the phase shifter; and
adjusting, at said phase shifter, a characteristic of said first of said plurality of received signals based on said generated control signal so that said characteristic of said first of said plurality of received signals is substantially equivalent to a characteristic of said second of said plurality of received signals.
11. The non-transitory machine-readable storage according to claim 10 , wherein said characteristic of said first of said plurality of received signals is at least one of a phase and an amplitude of said first of said plurality of received signals, and wherein said characteristic of at least said second of said plurality of received signals is at least one of a phase and an amplitude of at least said second of said plurality of received signals.
12. The non-transitory machine-readable storage according to claim 10 , wherein said generated control signal comprises a single weight signal.
13. The non-transitory machine-readable storage according to claim 10 , wherein said characteristic of said first of said plurality of received signals is adjusted continuously.
14. The non-transitory machine-readable storage according to claim 10 , wherein said characteristic of said first of said plurality of received signals is adjusted at discrete intervals.
15. The non-transitory machine-readable storage according to claim 10 , said steps further comprising amplifying said first of said plurality of received signals so that a gain of said first of said plurality of received signals is equivalent to a gain of at least said second of said plurality of received signals.
16. The non-transitory machine-readable storage according to claim 10 , said steps further comprising combining said adjusted first of said plurality of received signals with said second of said plurality of received signals to generate a combined received signal.
17. The non-transitory machine-readable storage according to claim 10 , said steps further comprising generating said channel estimate of said time varying impulse response for said first of said plurality of received signals on a per base station basis.
18. The non-transitory machine-readable storage according to claim 10 , said steps further comprising generating said at least one control signal utilizing at least one optimization algorithm comprising one or more of a maximum signal-to-noise ratio (SNR) algorithm, a maximum signal-to-interference-and-noise ratio (SINR) algorithm, and/or a minimum bit error rate (BER) algorithm.
19. A system for processing signals in a receiver, the system comprising:
a phase shifter configured to receive a plurality of signals;
a control signal generator configured to generate a control signal, based on a channel estimate of a time varying impulse response or signal timing information associated with a digitized baseband signal corresponding to a first and a second of said plurality of received signals, wherein the generated control signal is fed back to the phase shifter; and
at least one processor configured to adjust a characteristic of said first of said plurality of received signals based on said generated control signal so that said characteristic of said first of said plurality of received signals is substantially equivalent to a characteristic of said second of said plurality of received signals.
20. The system according to claim 19 , wherein said characteristic of said first of said plurality of received signals is a phase or an amplitude of said first of said plurality of received signals, and wherein said characteristic of at least said second of said plurality of received signals is a phase or amplitude of at least said second of said plurality of received signals.
21. The system according to claim 19 , wherein said generated control signal comprises a single weight signal.
22. The system according to claim 19 , wherein said characteristic of said first of said plurality of received signals is adjusted continuously.
23. The system according to claim 19 , wherein said characteristic of said first of said plurality of received signals is adjusted at discrete intervals.
24. The system according to claim 19 , further comprising an amplifier configured to amplify said first of said plurality of received signals so that a gain of said first of said plurality of received signals is equivalent to a gain of at least said second of said plurality of received signals.
25. The system according to claim 19 , further comprising a combiner configured to combine said adjusted first of said plurality of received signals with at least said second of said plurality of received signals to generate a combined received signal.
26. The system according to claim 19 , further comprising a channel estimator configured to generate said channel estimate of a time varying impulse response for at least said first of said plurality of received signals on a per base station basis.
27. The system according to claim 19 , wherein said control signal generator is further configured to generate said control signal utilizing at least one optimization algorithm comprising one or more of a maximum signal-to-noise ratio (SNR) algorithm, a maximum signal-to-interference-and-noise ratio (SINR) algorithm, and a minimum bit error rate (BER) algorithm.