Patent ID: 7587222

Claim:
A MIMO radio transceiver, comprising: a baseband processor; a first front end core; wherein the first front end core further includes: a first Rx/Tx processing block; wherein the first Rx/Tx processing block further includes: a first receive in-phase differential analog signal path input; a first receive quadrature-phase differential analog signal path input; a first transmit in-phase differential analog signal path output; and a first transmit quadrature-phase differential analog signal path output; a second Rx/Tx processing block; and wherein the second Rx/Tx processing block farther includes: a second receive in-phase differential analog signal path input; a second receive quadrature-phase differential analog signal path input; a second transmit in-phase differential analog signal path output; and a second transmit quadrature-phase differential analog signal path output; a second front end core; wherein the second front end core further includes: a third Rx/Tx processing block; wherein the third Rx/Tx processing block further includes: a third receive in-phase differential analog signal path input; a third receive quadrature-phase differential analog signal path input; a third transmit in-phase differential analog signal path output; and a third transmit quadrature-phase differential analog signal path output; a fourth Rx/Tx processing block; and wherein the fourth Rx/Tx processing block further includes: a fourth receive in-phase differential analog signal path input; a fourth receive quadrature-phase differential analog signal path input; a fourth transmit in-phase differential analog signal path output; and a fourth transmit quadrature-phase differential analog signal path output; and wherein each of the first, second, third and fourth Rx/Tx processing blocks are operable to process differential signals received from and transmitted to the baseband processor according to whether the differential signal is received from the baseband processor by a differential transmit path or is transmitted to the baseband processor from a differential receive path.