RECEIVER AND RECEIVING METHOD FOR RECEIVING DATA IN A BROADCASTING SYSTEM USING INCREMENTAL REDUNDANCY

    公开(公告)号:EP2502351B1

    公开(公告)日:2018-07-25

    申请号:EP10768013.4

    申请日:2010-10-18

    IPC分类号: H03M13/11 H04L1/00

    摘要: The present invention relates to a receiver (50) and a corresponding receiving method for receiving data in a broadcasting system as well as to a broadcasting system and method. To improve the decoding quality, if needed, a receiver (50) is proposed comprising: - a receiver unit (52) for receiving a receiver input data stream (O') segmented into frames, - a data demapper (54) for demapping codewords (Z1, Z2, Z3, Z4) mapped onto the frames of the receiver input data stream (O'), a codeword comprising a basic codeword portion (B) and an auxiliary codeword portion (A), wherein said basic codeword portion (B) is generated from an input data word (D) according to a first code and said auxiliary codeword portion (A) is generated from an input data word (D) according to a second code, - a decoder (56) for error correction code decoding said codewords into output data words (D') of at least one output data stream (I1', I2',..., In') in a regular decoding step by use of the basic codeword portion (B') comprised in a codeword and, if said regular decoding of a codeword is erroneous, in an additional decoding step by additionally using the auxiliary codeword portion (A') as incremental redundancy, - a check unit (58) for checking if the regular decoding of a codeword is erroneous, and - a data output (60) for outputting said at least one receiver output data stream (I1', I2',..., In') segmented into said decoded output data words (D').

    FRAME DE-MAPPING APPARATUS AND METHOD

    公开(公告)号:EP2491667B1

    公开(公告)日:2018-07-25

    申请号:EP10765636.5

    申请日:2010-10-15

    IPC分类号: H04L1/00

    CPC分类号: H04L1/0083 H04L1/0006

    摘要: The present invention relates to an apparatus and a corresponding method for de-mapping a time-domain de-mapping input data stream (Q') having a frame structure into at least two de-mapping output data streams (S1', S2',..., Sn') carrying error correction code encoded time-domain data, comprising a data input (202) for receiving said time-domain de-mapping input data stream (Q') having a frame structure of frames, each frame comprising a number of frame intervals (F1, F2,..., FM), wherein each frame interval carries sequentially arranged data blocks (D1, D2,..., DN) from various de-mapping output data streams and wherein within a frame the mapping of data blocks (D1, D2,..., DN) from the various de-mapping output data streams onto frame intervals (F1, F2,..., FM) is different from frame interval to frame interval, a data de-mapper (206) for de-mapping the frames of said de-mapping input data stream (Q') into said at least two de-mapping output data streams (S1', S2',..., Sn'), wherein from frame interval to frame interval within a frame the de-mapping of data blocks (D1, D2,..., DN) into said at least two de-mapping output data streams (S1', S2',..., Sn') is made differently, and a data output (210) for outputting said at least two de-mapping output data streams (S1', S2',..., Sn').