BROADCAST SIGNAL TRANSMITTER AND RECEIVER, AND METHODS FOR TRANSMITTING AND RECEIVING BROADCAST SIGNALS

Title:

BROADCAST SIGNAL TRANSMITTER AND RECEIVER, AND METHODS FOR TRANSMITTING AND RECEIVING BROADCAST SIGNALS

Document Type and Number:

WIPO Patent Application WO/2011/096704

Kind Code:

A3

Abstract:

A broadcast signal transmitter according to one embodiment of the present invention comprises: an FEC encoder for FEC encoding data that is included in a signal; a demultiplexer for reordering a bit order of the FEC encoded data; a divider for reordering the reordered data according to the QAM type of a first input signal and a second input signal and then outputting the first input signal and the second input signal; a symbol mapper for symbol mapping the first input signal and the second input signal, respectively; a MIMO encoder for MIMO processing 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 for performing the OFDM modulation on the first transmission signal and the second transmission signal, respectively, wherein the MIMO processing involves the application of a MIMO matrix to the first input signal and the second input signal, the MIMO matrix uses a parameter 'a' to adjust the power of the first input signal and the second input signal, the parameter 'a' varies depending on the modulation type of the first input signal and the second input signal, and the parameter 'a' of the MIMO matrix is set in such a manner as to adjust the power of the first input signal and the second input signal for the first transmission signal or the second transmission signal.

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Inventors:

KO WOO SUK (KR)
MOON SANG CHUL (KR)

Application Number:

PCT/KR2011/000699

Publication Date:

November 24, 2011

Filing Date:

February 01, 2011

Export Citation:

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Assignee:

LG ELECTRONICS INC (KR)
KO WOO SUK (KR)
MOON SANG CHUL (KR)

International Classes:

H04N7/015; H04B7/04; H04H20/33; H04L27/26

Foreign References:

EP1821481A2	2007-08-22
EP1983678A2	2008-10-22
US20070071121A1	2007-03-29

Other References:

P. ATANES ET AL.: "MIMO Performance of the Next Generation DVB-T", IEEE VTC, 26 April 2009 (2009-04-26) - 29 April 2009 (2009-04-29), XP031474619

Attorney, Agent or Firm:

KIM, Yong In et al. (7th Floor Hyundae Building 175-9 Jamsil-dong Songpa-ku, Seoul 138-861, KR)

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