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    • 77. 发明授权
    • Convolutional turbo coding method and device for implementing the coding method
    • 卷积turbo编码方法和实现编码方法的装置
    • US08788919B2
    • 2014-07-22
    • US12647866
    • 2009-12-28
    • Zheng ZhaoSeung-Hoon ChoiSung-Eun ParkChi-Woo Lim
    • Zheng ZhaoSeung-Hoon ChoiSung-Eun ParkChi-Woo Lim
    • H03M13/03
    • H04L27/34H03M13/258H03M13/27H03M13/296H03M13/3988H03M13/6362H03M13/6544H04L1/006H04L1/0066H04L1/0071
    • A method and apparatus for Convolutional Turbo Coding (CTC), and an apparatus for a turbo encoder are provided. The method for CTC includes the steps of encoding information bits A and B using a constituent encoder, and outputting parity sequences Y1 and W1, interleaving the information bits A and B using a CTC interleaver to obtain information bits C and D, and encoding the interleaved information bits C and D using the constituent encoder to obtain parity sequences Y2 and W2, interleaving the information bits A and B, the parity sequences Y1 and W1 and the parity sequences Y2 and W2, respectively, wherein the bits in at least one of a bit group constituted of the information bits A and B, a bit group constituted of the sequences Y1 and W1, and a bit group constituted of the sequences Y2 and W2 are alternately mapped to bits of constellation points with high reliability and low reliability and puncturing the interleaving result to obtain the encoded bit sequences.
    • 提供了一种用于卷积式Turbo编码(CTC)的方法和装置,以及一种用于turbo编码器的装置。 CTC的方法包括使用构成编码器对信息比特A和B进行编码的步骤,并且输出奇偶校验序列Y1和W1,使用CTC交织器交织信息比特A和B以获得信息比特C和D,并对交织的 信息比特C和D使用构成编码器来获得奇偶校验序列Y2和W2,分别交织信息比特A和B,奇偶校验序列Y1和W1以及奇偶校验序列Y2和W2,其中至少一个 由信息比特A和B构成的比特组,由序列Y1和W1构成的比特组和由序列Y2和W2构成的比特组被交替地映射到具有高可靠性和低可靠性的星座点的比特,并且刺穿 交织结果以获得编码比特序列。
    • 78. 发明授权
    • Calibration apparatus and method for multicell multiple input multiple output transmission in multiple antenna system
    • 多天线系统多单元多输入多输出传输的校准装置及方法
    • US08542635B2
    • 2013-09-24
    • US12915814
    • 2010-10-29
    • Shuangfeng HanChi-Woo Lim
    • Shuangfeng HanChi-Woo Lim
    • H04W72/04H04B7/06
    • H04B7/024H04B17/12
    • A calibration apparatus and a calibration method for multicell Multiple Input Multiple Output (MIMO) transmission in a multiple antenna system are provided. More particularly, an operating method of a Mobile Station (MS) for performing calibration for multicell MIMO transmission in a multiple antenna system includes negotiating a multi-Base Station (BS) joint processing with a BS, receiving a control message including information instructing multi-BS calibration for sounding based on the multi-BS joint processing, from the BS; when receiving the control message involving the multi-BS joint processing, generating a second sounding sequence by mapping estimated phases of downlink channels per subcarrier of BSs to a first sounding sequence allocated from the BS, and transmitting the second sounding sequence, including the phases of the downlink channels per subcarrier, over a sounding symbol interval with respect to each of the BSs involving the multi-BS joint processing. Hence, feedback overhead in the calibration of the multicell MIMO transmission can be reduced.
    • 提供了一种用于多天线系统中的多输入多输入多输出(MIMO)传输的校准装置和校准方法。 更具体地说,用于在多天线系统中进行多单元MIMO传输的校准的移动台(MS)的操作方法包括:与BS协商多基站(BS)联合处理,接收包括指示多台天线的信息的控制消息, 基于BS的校准基于多BS联合处理,从BS; 当接收到涉及多BS联合处理的控制消息时,通过将BS的每个子载波的下行链路信道的估计相位映射到从BS分配的第一探测序列,并发送第二探测序列,生成第二探测序列, 相对于涉及多BS联合处理的每个BS的探测符号间隔,每个子载波的下行链路信道。 因此,可以减少多单元MIMO传输的校准中的反馈开销。