公开(公告)号：US06903665B2

公开(公告)日：2005-06-07

申请号：US10695910

申请日：2003-10-30

申请人： Mohammad Shahanshah Akhter ,  Robert Wood ,  Antonio Mascioli

发明人： Mohammad Shahanshah Akhter ,  Robert Wood ,  Antonio Mascioli

IPC分类号： H03M13/00 ,  H03M13/27 ,  H03M13/29 ,  H03M13/41 ,  H04L1/00 ,  H03M7/00

CPC分类号： H04L1/0066 ,  H03M13/2707 ,  H03M13/2771 ,  H03M13/2933 ,  H03M13/2996 ,  H03M13/4161 ,  H04L1/0065 ,  H04L1/0069

摘要： A data encoder for encoding a codeword having a plurality of symbols for transmission through a data channel comprises a turbo encoder which has an interleaver, first and second RSC encoders, a puncturer and a mapper. The interleaver receives the codeword and provides an interleaved codeword. The first RSC encoder is for receiving the codeword and providing first parity bits in accordance with the codeword. The second RSC encoder is for receiving the interleaved codeword from the interleaver and providing second parity bits in accordance with the interleaved codeword. The puncturer is for receiving the codeword, the first parity bits and the second parity bits, and for puncturing at least the first and second parity bits in accordance with a pattern of a desired code rate. The mapper is for receiving the punctured parity bits, and for providing signal sets in accordance with the desired code rate.

摘要翻译： 用于编码具有用于通过数据信道传输的多个符号的码字的数据编码器包括具有交织器，第一和第二RSC编码器，穿孔器和映射器的turbo编码器。 交织器接收码字并提供交织的码字。 第一RSC编码器用于接收码字并根据码字提供第一奇偶校验位。 第二RSC编码器用于从交织器接收交织的码字，并根据交织的码字提供第二奇偶校验位。 穿刺器用于接收码字，第一奇偶校验位和第二奇偶校验位，并且用于根据期望码率的模式至少对第一和第二奇偶校验位进行删截。 映射器用于接收穿孔奇偶校验位，并用于根据期望的码率提供信号组。

公开(公告)号：US20120170691A1

公开(公告)日：2012-07-05

申请号：US13298254

申请日：2011-11-16

申请人： JOSE AUGUSTO LIMA ,  ANTONIO MASCIOLI

发明人： JOSE AUGUSTO LIMA ,  ANTONIO MASCIOLI

IPC分类号： H04L27/06

CPC分类号： H04B1/10 ,  H04L25/0328 ,  H04L27/233

摘要： Interference cancellation for wideband and narrowband communications systems is provided without apriori knowledge of statistical information about an interfering signal. In one embodiment a demodulator circuit can operate in an environment where a “no lock” situation would normally occur to remove the interference and acquire signals in low signal-to-noise ratio (SNR) conditions and high signal-to-interference ration (SIR) conditions. In other embodiments, performance is improved by introducing statistics of the interfering signal, and these statistics regarding the communications channel and interference properties (i.e., characteristics of the interfering signal) can be adaptive or “learned” in other embodiments.

摘要翻译： 提供宽带和窄带通信系统的干扰消除，而无需关于干扰信号的统计信息的知识。 在一个实施例中，解调器电路可以在通常发生“无锁定”情况以消除干扰并获取低信噪比（SNR）条件和高信号与干扰比（SIR）的信号的环境中工作 ） 条件。 在其他实施例中，通过引入干扰信号的统计来提高性能，并且关于通信信道和干扰特性（即干扰信号的特性）的这些统计信息在其他实施例中可以是自适应的或“学习的”。