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Hybrid ARQ scheme with turbo-codes

机译:具有turbo码的混合ARQ方案

摘要

Turbo-coding in a communications system involves coding/decoding information in stages in order to avoid retransmission of a full L-bit packet upon occurrence of a packet error. In addition to a set of code bits generated by an encoder using a turbo-coding scheme, a punctured set of code bits is generated and stored in transmitter memory. The original set of code bits is transmitted as an L-bit data packet to a receiver which stores received data samples corresponding to the original set of code bits. The receiver decodes the data packet using a turbo-decoder and determines whether the data packet has been received in error. If so, the received data samples are maintained in memory, and a request for more information is made. Some or all of the punctured information is then forwarded from the transmitter to the receiver. A second stage of turbo-decoding combines the new data samples with the stored original received data samples such that there is a high likelihood that decoding is correct at this point, but additional stages of decoding may be used.
机译:通信系统中的Turbo编码涉及分阶段地编码/解码信息,以便避免在发生分组错误时重发完整的L比特分组。除了由编码器使用turbo编码方案生成的一组代码位之外,还将生成一组穿孔的代码位并将其存储在发射机内存中。原始码位组作为L位数据包发送到接收器,该接收器存储与原始码位组相对应的接收数据样本。接收器使用turbo解码器解码数据包,并确定是否已错误接收数据包。如果是这样,则将接收到的数据样本保存在存储器中,并请求更多信息。然后将部分或全部打孔信息从发送器转发到接收器。涡轮解码的第二阶段将新数据样本与所存储的原始接收到的数据样本相结合,使得在这一点上解码正确的可能性很高,但是可以使用附加的解码阶段。

著录项

  • 公开/公告号EP1326346B1

    专利类型

  • 公开/公告日2008-10-01

    原文格式PDF

  • 申请/专利权人 GEN ELECTRIC;

    申请/专利号EP20030075470

  • 发明设计人 ROSS JOHN ANDERSON FERGUS;

    申请日1998-04-15

  • 分类号H03M13/29;H03M13/00;

  • 国家 EP

  • 入库时间 2022-08-21 19:59:27

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