Versatile system for signal shaping in ultra-wideband communications

摘要

The present invention provides a versatile system for selectively altering or shaping transmission signals in an ultra-wideband communications system ( 100 ). The system provides a serial to parallel conversion function ( 102 ) with a serial data input ( 116 ). The serial to parallel conversion function converts the serial data and outputs it in parallel format. An adjustment function ( 104 ) receives the now parallel data and selectively alters the parallel data responsive to some code or vector ( 118 ). A frequency-to-time-domain conversion function ( 106 ) receives the selectively altered parallel data and transmits it to a parallel-to-serial conversion function 108. The now serial data transfer through an OFDM prefix/suffix function 110 and a digital-to-analog conversion function 112, to an up conversion mixer function 114. Encoded digital data bits are input, converted to parallel format, and passed to the spectrum adjustment function, which provides selective adjustment of specific data units (i.e., specific OFDM sub-carriers or tones).