Abstract:
The present invention relates to an encoder for error correction code encoding input data words (D) into codewords (Z1, Z2), comprising: an encoder input (1451) for receiving input data words (D) each comprising a first number K ldpc of information symbols, an encoding means (1452) for encoding an input data word (D) into a codeword (Z1, Z2, Z3, Z4) such that a codeword comprises a basic codeword portion (B) including a data portion (D) and a basic parity portion (Pb) of a second number N ldpc - K ldpc of basic parity symbols, and an auxiliary codeword portion (A) including an auxiliary parity portion (Pa) of a third number M IR of auxiliary parity symbols, wherein said encoding means (14) is adapted i) for generating said basic codeword portion (B) from an input data word (D) according to a first code, wherein a basic parity symbol is generated by accumulating an information symbol at a parity symbol address determined according to a first address generation rule, and ii) for generating said auxiliary codeword portion (A) from an input data word (D) according to a second code, wherein an auxiliary parity symbol is generated by accumulating an information symbol m at a parity symbol address ?, wherein said parity symbol addresses ? are determined according to a second address generation rule N ldpc - K ldpc + {x + m mod G a x Q IR } mod M IR if x > N ldpc - K ldpc ' wherein x denotes the addresses of a parity symbol accumulator corresponding to the first information symbol of a group of size Ga and Q IR is an auxiliary code rate dependent, predefined constant, and an encoder output (1454) for outputting said codewords (Z1, Z2).
Abstract translation:本发明涉及一种用于将输入数据字(D)编码为码字(Z1,Z2)的编码器,包括:编码器输入(1451),用于接收输入数据字(D),每个输入数据字包括第一数目K ldpc 信息符号;编码装置(1452),用于将输入数据字(D)编码为码字(Z1,Z2,Z3,Z4),使得码字包括包含数据部分(D)的基本码字部分(B);以及 基本奇偶校验码元的第二数量N ldpc -K ldpc的基本奇偶校验部分(Pb)以及包括辅助奇偶校验码元的第三数目M IR的辅助奇偶部分(Pa)的辅助码字部分(A),其中所述 编码装置(14)适于:i)根据第一码从输入数据字(D)产生所述基本码字部分(B),其中通过在确定的奇偶校验符号地址处累积信息符号来产生基本奇偶校验符号 根据第一个地址生成规则,以及ii)用于生成 根据第二代码从输入数据字(D)中除去所述辅助码字部分(A),其中辅助奇偶校验符号通过在奇偶校验符号地址β处累积信息符号m而产生, 根据第二地址生成规则N ldpc -K ldpc + {x + m mod G ax Q IR} mod M IR确定,如果x> N ldpc -K ldpc',其中x表示与所述第一地址生成规则相对应的奇偶符号累加器的地址 尺寸Ga和Q IR组的第一个信息符号是一个辅助码率相关的预定义常数,和一个用于输出所述码字(Z1,Z2)的编码器输出(1454)。
Abstract:
The present technique relates to a data processing device and a data processing method, capable of promptly issuing an emergency alarm under the DVB-C2. A transmission device generates L1 signalling including an emergency alarm signal related to an emergency alarm, in L1 signalling Part 2 under the digital video broadcasting (DVB)-C2. A reception device processes the L1 signalling obtained from data transmitted from the transmission device. The present technique can be applied, under the DVB-C2, for example, to a case where an emergency alarm is issued.
Abstract:
There is provided a reception device which receives signals compliant with a DVB-T2 standard which possibly includes a plurality of different profiles and demodulates a signal having a predetermined profile, of the received signals, and demodulates a signal having a different profile when it is clear that the signal having the different profile is included.
Abstract:
The present technology relates to a reception device, a reception method, and a program therefor that enable improvement in reception performance when information on a frequency band in which no data is transmitted is known. The reception device receives a broadcast wave of an OFDM signal transmitted from a transmission device at a broadcast station that is not shown. A transmission parameter interpretation unit acquires band information indicating a "no signal" band contained in transmitted control information. An interference rejection filter unit performs filtering at least when a signal with a level higher than a predetermined level is detected on the basis of the band information from the transmission parameter interpretation unit. The disclosed technology can be applied to a reception device that receives OFDM signals, for example.
Abstract:
The present technology relates to a reception apparatus for enabling the influence of an error during transmission to be minimized in channel bonding, and a reception method. The reception apparatus receives a plurality of divided streams acquired by distributing BB frames of a BB stream which is a stream of BB frames to a plurality of data slices, when an error occurs during transmission and time information on an order of selection of the BB frames when the plurality of the divided streams are reconstructed cannot be acquired, estimates the BB frame to be selected next from among the selectable BB frames for each of the plurality of the divided streams on the basis of information on the BB frames, and selects the next BB frame from among the selectable BB frames on the basis of an estimation result of the BB frame. The present technology is applicable to channel bonding such as PLP bundling.
Abstract:
There is provided a receiving device including a receiving unit configured to receive encoded data encoded by one or more codes, a first decoding unit configured to decode the encoded data received by the receiving unit, a first delay unit configured to delay a part of decoding results obtained by the first decoding unit, and a reliability increasing unit configured to control decoding of the encoded data to increase reliability of the decoding results using a decoding result that is not delayed by the first delay unit among the decoding results after delay by the first delay unit.