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    • 2. 发明授权
    • Method for transmitting data in a digital transmission system given a packet-switched service
    • 给定分组交换服务的数字传输系统中的数据传输方法
    • US06625179B1
    • 2003-09-23
    • US09486248
    • 2000-02-22
    • Markus DoetschJörg PlechingerPeter JungFriedbert Berens
    • Markus DoetschJörg PlechingerPeter JungFriedbert Berens
    • H04L118
    • H03M13/00H03M13/13H03M13/29H03M13/41H03M13/45H04L1/16H04L1/18H04L12/56
    • In a method for transmitting data in a digital transmission system given packet-switched service, for purposes of channel coding, a turbo-coding is performed in a turbo-coder at the sender side and a turbo-decoding with soft decision output signals is performed in a turbo-decoder at the receiver side. To trigger an ARQ, the channel quality is estimated by a parameter estimation method; the variances of the soft decision output signals at the turbo-decoder are determined; the correctness or respectively, defectiveness of the transmitted packet is inferred from the channel quality and the variances; and a retransmission of at least a part of defective packet is triggered. In the retransmission of the information of a defective packet, at least part of the information suppressed by the dotting in the precious transmission is sent. This additional information is [. . .] inserted into the already existing information at the receiver side, and this complete information is decoded again.
    • 在用于在给定分组交换服务的数字传输系统中发送数据的方法中,为了信道编码的目的,在发送机侧的turbo编码器中执行turbo编码,并且执行具有软判决输出信号的turbo解码 在接收机侧的turbo解码器中。 为了触发ARQ,通过参数估计方法估计信道质量; 确定turbo解码器处的软决策输出信号的方差; 从信道质量和方差推断发送分组的正确性或分别的缺陷; 并且触发有缺陷分组的至少一部分的重传。 在重新发送有缺陷的信息包的信息时,发送由珍贵传送中的点号抑制的信息的至少一部分。 这个附加信息是[。 。 。]插入到接收端的已经存在的信息中,并且该完整信息被再次解码。
    • 4. 发明授权
    • Method for packet transmission with an ARQ protocol on transmission channels in a digital transmission system
    • 在数字传输系统的传输通道上使用ARQ协议进行数据包传输的方法
    • US06571366B1
    • 2003-05-27
    • US09486335
    • 2000-02-22
    • Markus DoetschJörg PlechingerPeter JungFriedbert Berens
    • Markus DoetschJörg PlechingerPeter JungFriedbert Berens
    • H03M1329
    • H03M13/2975H03M13/6381
    • In a method for packet transmission using an ARQ protocol on transmission channels in a digital transmission system, for channel coding, turbo coding is carried out in a turbo coder at the transmitter end and turbo decoding is carried out in a turbo decoder at the receiver end using soft-decision output signals. A return channel is provided, which the receiver uses to request the information from faulty packets once again. An RCPTC is used as the turbo code. When the information in a faulty packet is retransmitted, at least a portion of the information suppressed by the puncturing of the RCPTC in the previous transmission is transmitted. This additional information is inserted into the already existing information at the receiver end, and this completed information is decoded once again. When the repeat transmission is made, the only bits which are transmitted are those which are additionally available at the next lower coding rate, since they are not punctured. The method is repeated, until the packet is decoded without any errors or all of the coded information in a packet is transmitted.
    • 在数字传输系统的传输信道上使用ARQ协议进行分组传输的方法中,对于信道编码,在发射机端的turbo编码器中进行turbo编码,并在接收机端的turbo解码器中进行turbo解码 使用软判决输出信号。 提供返回信道,接收机再次使用该信道来请求故障信息。 RCPTC用作turbo码。 当重传故障分组中的信息时,发送通过在先前传输中的RCPTC的删截所抑制的信息的至少一部分。 该附加信息被插入到接收端已存在的信息中,并且该完成的信息被再次被解码。 当进行重复发送时,发送的唯一比特是由于它们没有被打孔而在下一个较低编码率下额外可用的那些比特。 该方法被重复,直到分组被解码而没有任何错误或分组中的所有编码信息被发送。