Broadcast signal transmitter/receiver and broadcast signal transmitting/receiving method
US9484993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2011 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Dec 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/42
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A broadcast signal transmitter according to one embodiment of the present invention comprises: an input signal generating unit which generates a first input signal and a second input signal; a MIMO encoder which performs MIMO processing of the first input signal and the second input signal to output a first transmission signal and a second transmission signal; and a first OFDM generator and a second OFDM generator which performs OFDM modulation of the first transmission signal and OFDM modulation of the second transmission signal. The MIMO processing applies a MIMO matrix to the first input signal and the second input signal. The MIMO matrix changes phases using a phase rotation matrix, and adjusts power of the first input signal and second input signal using parameter a, wherein the parameter is set to different values in accordance with the modulation types of the first input signal and second input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.