Multiple-input multiple-output (mimo) communication system
AssigneeCable Television Laboratories, Inc.
InventorsLuis Alberto Campos, Jennifer Andreoli-Fang, Joey Padden
Life of this patent
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Abstract
A multiple-input multiple-output (MIMO) capable system is contemplated. The communication system may include a signal processor configured to separate an input stream into multiple signal paths to facilitate simultaneous transport through a communication medium. The capability to simultaneously transmit multiples signal paths may be beneficial in order to maximize throughput and/or minimize expense.
Claims20
A multiple-input multiple-output (MIMO) signal processor comprising:
- a baseband processor configured to multiplex an input signal into at least a first signal part, a second signal part, a third signal part and a fourth signal part;
- and
- a radio frequency integrated circuit (RFIC) configured to transmit the first signal part at a first frequency, the second signal part at a second frequency, the third signal part at a third frequency and the fourth signal part at a fourth frequency, each of the first, second, third and fourth frequencies being different.
A method of facilitating signal transmissions comprising:
- receiving an input signal desired for transmission;
- multiplexing the input signal into at least a plurality of signal parts;
- modulation mapping each of the plurality of signal parts after the multiplexing;
- orthogonal frequency division multiplexing (OFDM) processing each of the plurality of signal parts after the modulation mapping;
- instructing each of a plurality of local oscillators to facilitate mixing no more than one of the plurality of signal parts after the OFDM processing, including mixing each signal part to have a different center frequency;
- transmitting each of the plurality of signal parts for long-haul transmission over at least one of a wireline communication medium and an optical communication medium after the mixing.
A multiple-input multiple-output (MIMO) signal processor comprising:
- a baseband processor configured to multiplex an input signal into at least a first signal part and a second signal part;
- and
- a radio frequency integrated circuit (RFIC) configured to transmit the first signal part at a first frequency and the second signal part at a second frequency, RFIC including a first oscillator for mixing the first signal part and a second oscillator for mixing the second signal part;
- and
- a front end configured to combine the first signal part and the second signal part into an output signal for output put to a radio frequency (RF) combiner.
Dependencies are inferred from the claim text.