Patent ID: 9503167
Filing Date: 2016-11-22
CPC Classification: H04B,H04H,H04L

Claim Text:
1. A method of transmitting broadcast signals, the method comprising: encoding PLP (Physical Layer Pipe) data according to a code rate; bit interleaving the encoded PLP data; demultiplexing the bit interleaved PLP data into first data cells and second data cells; mapping the first data cells onto first symbols in a first NUC (Non-Uniform Constellation), and mapping the second data cells onto second symbols in a second NUC; MIMO (Multi-Input Multi-Output) encoding pairs of the first and second symbols, wherein the MIMO encoding further includes: time interleaving the MIMO encoded data; building at least one signal frame by mapping the time interleaved data; and modulating data in the built signal frame by OFDM (Orthogonal Frequency Division Multiplexing) method and transmitting the broadcast signals having the modulated data.