Patent ID: 7936833

Claim:
A method for processing wireless signals, the method comprising: performing by one or more circuits and/or processors in a multiple-input-multiple-output (MIMO) system: generating a plurality of reference signals via a plurality of direct digital frequency synthesizers, wherein one or more of said direct digital frequency synthesizers comprises a single accumulator and a plurality of digital to analog converters; and processing received and/or to-be-transmitted signals using said generated plurality of reference signals, wherein: for processing said received signals, ones of said reference signals that are generated by a first portion of said direct digital frequency synthesizers are coupled, via a multiplexer, to a plurality of receive chains of said MIMO system; and for processing said to-be-transmitted signals, said ones of said reference signals that are generated by a first portion of said direct digital frequency synthesizers are coupled, via said multiplexer, to a transmit chain of said MIMO system.