公开(公告)号：US20190007252A1

公开(公告)日：2019-01-03

申请号：US16126244

申请日：2018-09-10

Applicant: SONY CORPORATION

Inventor： JUNGE QI ,  Joerg ROBERT ,  Jan ZOELLNER ,  Lothar STADELMEIER ,  Nabil LOGHIN

IPC: H04L27/26 ,  H04L1/22 ,  H04L1/18 ,  H03M13/00 ,  H04L1/00 ,  H04H40/18

CPC classification number: H04L27/2649 ,  H03M13/6306 ,  H03M13/6552 ,  H04H40/18 ,  H04L1/0046 ,  H04L1/007 ,  H04L1/0086 ,  H04L1/1819 ,  H04L1/1893 ,  H04L1/22 ,  H04L27/265

Abstract: A receiver for receiving data in a broadcast system comprises a broadcast receiver that receives via said broadcast system a receiver input data stream comprising a plurality of channel symbols represented by constellation points in a constellation diagram, a demodulator that demodulates said channel symbols into codewords, and a decoder that decodes said codewords into output data words. A redundancy calculator determines a required amount of redundancy data required for correct demodulation and decoding by use of the originally received channel symbol and additional redundancy data. A broadband request unit requests, if demodulation of a channel symbol and/or decoding of a codeword is erroneous or likely to fail, a required amount of redundancy data via a broadband system, that is received by a broadband receiver via said broadband system. Said demodulator and/or said decoder is configured to use said redundancy data for demodulation and decoding, respectively.