Multiple-Input Multiple-Output Radio Transceiver
First Claim
1. A multiple-input multiple-output (MIMO) radio transceiver on a single semiconductor integrated circuit, comprising:
- a. a receiver comprising at least first and second receiver circuits each to process a signal from a corresponding one of first and second antennas, the first receiver circuit downconverts a first receive signal detected by the first antenna to produce a first baseband signal, the second receiver circuit downconverts a second receive signal detected by the second antenna to produce a second baseband signal; and
b. a transmitter comprising at least first and second transmitter circuits, the first transmitter circuit upconverts a first baseband transmit signal to generate a first radio frequency signal that is coupled to the first antenna for transmission, the second transmitter circuit upconverts a second baseband transmit signal to generate a second radio frequency signal that is coupled to the second antenna for transmission.
1 Assignment
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Accused Products
Abstract
A MIMO radio transceiver to support processing of multiple signals for simultaneous transmission via corresponding ones of a plurality of antennas and to support receive processing of multiple signals detected by corresponding ones of the plurality of antennas. The radio transceiver provides, on a single semiconductor integrated circuit, a receiver circuit or path for each of a plurality of antennas and a transmit circuit or path for each of the plurality of antennas. Each receiver circuit downconverts the RF signal detected by its associated antenna to a baseband signal. Similarly, each transmit path upconverts a baseband signal to be transmitted by an assigned antenna.
242 Citations
26 Claims
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1. A multiple-input multiple-output (MIMO) radio transceiver on a single semiconductor integrated circuit, comprising:
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a. a receiver comprising at least first and second receiver circuits each to process a signal from a corresponding one of first and second antennas, the first receiver circuit downconverts a first receive signal detected by the first antenna to produce a first baseband signal, the second receiver circuit downconverts a second receive signal detected by the second antenna to produce a second baseband signal; and
b. a transmitter comprising at least first and second transmitter circuits, the first transmitter circuit upconverts a first baseband transmit signal to generate a first radio frequency signal that is coupled to the first antenna for transmission, the second transmitter circuit upconverts a second baseband transmit signal to generate a second radio frequency signal that is coupled to the second antenna for transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for radio communication comprising steps of:
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a. coupling first and second radio frequency signals detected by first and second antennas to first and second receiver circuits on an integrated circuit;
b. downconverting the first and second radio signals from a common center frequency with the first and second receiver circuits to produce first and second baseband signals;
c. coupling first and second baseband transmit signals to first and second transmitter circuits, respectively, on the integrated circuit;
d. upconverting the first and second baseband transmit signals with the first and second transmitter circuits to produce first and second transmit radio frequency signals at a common center frequency; and
e. coupling the first and second transmit radio frequency signals to the first and second antennas, respectively, for simultaneous transmission.
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Specification