OFDM of signals onto a same RF port

摘要

An apparatus relates generally to OFDM. In this apparatus, modulators are coupled to receive data inputs. Each of the modulators includes IDFT blocks coupled to output a first and a second N-point transform, and a 2N-point transform to provide discrete time domain signals for the data inputs. A switch and frequency translation block is coupled to receive the discrete time domain signals. RF ports are coupled to the switch and frequency translation block. The switch and frequency translation block is configured to allocate a combination of outputs from two or more of the IDFT blocks to a same RF port of the RF ports and to translate frequency of at least one of the outputs from the two or more of the IDFT blocks to provide the OFDM of the outputs from the two or more of the IDFT blocks onto the same RF port of the RF ports.

主权项

1. An apparatus, comprising:
modulators coupled to receive data inputs; wherein each of the modulators includes Inverse Discrete Fourier Transform (“IDFT”) blocks; wherein the IDFT blocks are coupled to output a first N-point transform, a second N-point transform, and a 2N-point transform from each of the modulators to provide discrete time domain signals for the data inputs; wherein the 2N-point transform is a combination of the first N-point transform and the second N-point transform; a switch and frequency translation block coupled to receive the discrete time domain signals; and RF ports coupled to the switch and frequency translation block; wherein the switch and frequency translation block is configured to allocate a combination of outputs from two or more of the IDFT blocks to a same RF port of the RF ports and to translate frequency of at least one of the outputs from the two or more of the IDFT blocks to provide Orthogonally Frequency-Division Multiplexing (“OFDM”) of the outputs from the two or more of the IDFT blocks onto the same RF port of the RF ports.