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    • 4. 发明公开
    • 피크 전력 억압 장치 및 피크 전력 억압 방법
    • 峰值电力抑制装置和峰值电力抑制方法
    • KR1020060058692A
    • 2006-05-30
    • KR1020067001961
    • 2004-07-26
    • 파나소닉 주식회사
    • 리,지펭
    • H04J11/00
    • H04L27/2614H04W88/02H04W88/08
    • A peak electric power suppressing apparatus capable of suppressing the peak electric power by use of easy processings without degrading the error characteristic of multi-carrier signals. In the apparatus, a modulating part (100) modulates data to be transmitted. An encoding part (110) encodes the modulated data. An S/P converting part (120) S/P converts the encoded data and outputs a plurality of sequences of parallel data as obtained by the S/P conversion to an IFFT part (130), which inverse-fast-Fourier-transforms the parallel data to produce an OFDM signal. A GI adding part (140) adds a guard interval to the OFDM signal. An electric power converting part (150) converts the electric power of the OFDM signal by use of a nonlinear function. A D/A converting part (160) D/A converts the OFDM signal as electric-power-converted. A radio transmitting part (170) amplifies the electric power of the analog signal and performs predetermined radio transmission processings such as up-conversion to transmit the signal via an antenna (180).
    • 一种峰值电力抑制装置,其能够通过简单的处理来抑制峰值功率,而不会降低多载波信号的误差特性。 在该装置中,调制部(100)调制要发送的数据。 编码部分(110)对调制数据进行编码。 S / P转换部分(120)S / P转换编码数据,并将通过S / P转换得到的多个并行数据序列输出到IFFT部分(130),对IFFT部分进行反傅立叶变换 并行数据产生OFDM信号。 GI添加部分(140)向OFDM信号添加保护间隔。 电力转换部(150)通过使用非线性函数来转换OFDM信号的电力。 D / A转换部(160)D / A将OFDM信号转换为电力转换。 无线电发射部分(170)放大模拟信号的电力,并执行诸如上变频的预定无线电传输处理,以经由天线(180)发送信号。
    • 5. 发明公开
    • 복호 장치 및 복호 방법
    • 解码设备和解码方法
    • KR1020060035743A
    • 2006-04-26
    • KR1020067000682
    • 2004-07-09
    • 파나소닉 주식회사
    • 리,지펭
    • H03M13/39H03M13/29
    • H03M13/395H03M13/2957H03M13/3723H03M13/3905H03M13/3972
    • There is provided a decoding device capable of rapidly calculating likelihood information while suppressing increase of the processing amount and the circuit size. The device has a backward probability calculation section (112) for performing backward probability calculation by using two processing systems: one for calculating a backward probability betak from a backward probability betak+2 and the other for calculating a backward probability betak-1 from a backward probability betak+ 1. More specifically, when k = 1, the two processing systems calculate the backward probabilities beta1 and beta0 in parallel. The backward probabilities calculated are stored in a storage section (114) in the window unit. Moreover, like the backward probabilities, a forward probability calculation section (113) uses two processing systems for calculating forward probabilities alphak and alphak+1 in parallel. After the forward probabilities are calculated, a likelihood calculation section (115) calculates the likelihood information by using the forward probabilities and the backward probabilities stored in the storage section (114).
    • 提供一种能够在抑制处理量和电路尺寸的增加的同时快速计算似然信息的解码装置。 该装置具有用于通过使用两个处理系统执行向后概率计算的倒退概率计算部分(112):一个用于从后向概率betak + 2计算后向概率betak,另一个用于从后向计算逆向概率betak-1 概率betak + 1.更具体地说,当k = 1时,两个处理系统并行计算反向概率β1和β0。 计算出的反向概率被存储在窗口单元中的存储部分(114)中。 此外,与向后概率一样,前向概率计算部(113)使用两个并行计算前向概率alphak和alphak + 1的处理系统。 在计算前向概率之后,似然度计算部(115)通过使用存储在存储部(114)中的前向概率和后向概率来计算似然信息。
    • 9. 发明公开
    • 입력 제어장치 및 입력 제어 방법
    • 输入控制装置和输入控制方法
    • KR1020060087584A
    • 2006-08-02
    • KR1020067005821
    • 2004-09-17
    • 파나소닉 주식회사
    • 리,지펭
    • H03M13/13H03M13/29H03M13/00
    • H03M13/2957
    • There is provided an input control device capable of reducing the circuit size of a turbo decoder and effectively using the memory of the turbo decoder. The device includes a control unit (110) which acquires information on the encoding ratio and encoding block length of the received signal and determines the number of bits of the organization portion Y1 and parity portions Y2 and Y3 according to the encoding ratio and the encoding block length and so that the number of bits of one sequence of the parity portion is smaller than the number of bits of the organization portion Y1. The control unit (110) controls a number-of-bit deletion unit (109) so as to obtain the number of bits decided. The number-of-bit deletion unit (109) deletes the number of bits of the organization portion Y1 and the parity portions Y2 and Y3 which have been outputted from a separation unit (108), according to control of the control unit (110). A decoder (111) performs turbo decoding by using each sequence deleted by the number-of-bit deletion unit (109).
    • 提供了能够减少turbo解码器的电路尺寸并有效地使用turbo解码器的存储器的输入控制装置。 该装置包括控制单元(110),其获取关于接收信号的编码率和编码块长度的信息,并且根据编码率和编码块确定组织部分Y1和奇偶校验部分Y2和Y3的比特数 并且使得奇偶校验部分的一个序列的比特数小于组织部分Y1的比特数。 控制单元(110)控制位数删除单元(109)以获得所决定的位数。 位数删除单元(109)根据控制单元(110)的控制删除从分离单元(108)输出的组织部分Y1和奇偶校验部分Y2和Y3的位数, 。 解码器(111)通过使用由位数删除单元(109)删除的每个序列来执行turbo解码。