公开(公告)号：US20170279560A1

公开(公告)日：2017-09-28

申请号：US15618404

申请日：2017-06-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04L1/00 ,  H03M13/11

CPC classification number: H04L1/0054 ,  H03M13/1111 ,  H03M13/1125 ,  H03M13/3707 ,  H03M13/3715 ,  H03M13/373 ,  H03M13/3776 ,  H03M13/616 ,  H04L1/005 ,  H04L1/0053 ,  H04L1/0057 ,  H04L1/0061 ,  H04L2001/0097

Abstract: A decoding device includes: a BP decoder that performs BP decoding on an input signal: a maximum likelihood decoder that performs maximum likelihood decoding on a signal subjected to the BP decoding; and a selector that selects one of the input signal, the signal subjected to the BP decoding, and a signal subjected to the maximum likelihood decoding. In a configuration of the decoding device, when a decoder is appropriately operated according to quality of data, a calculation scale can be reduced, and power consumption can be decreased.

公开(公告)号：US20170041025A1

公开(公告)日：2017-02-09

申请号：US15297447

申请日：2016-10-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H03M13/25 ,  H03M13/33 ,  H03M13/19

CPC classification number: H03M13/255 ,  H03M13/1102 ,  H03M13/1111 ,  H03M13/19 ,  H03M13/35 ,  H03M13/6362 ,  H04L1/00

Abstract: One coding scheme is selected from a plurality of coding schemes, an information sequence is encoded by using the selected coding scheme, and an obtained encoded sequence is modulated to obtain a modulated signal. The obtained modulated signal is subjected to a phase change and is transmitted. The plurality of coding schemes include at least a first coding scheme and a second coding scheme. The first coding scheme is a coding scheme with a first coding rate for forming a generated first codeword as a first encoded sequence by using a first parity check matrix. The second coding scheme is a coding scheme with a second coding rate obtained after puncturing processing, for generating a second encoded sequence by performing the puncturing processing on a generated second codeword by using a second parity check matrix different from the first parity check matrix. The number of bits of the first encoded sequence is equal to the number of bits of the second encoded sequence.

Abstract translation: 从多个编码方案中选择一个编码方案，通过使用所选择的编码方案对信息序列进行编码，并且调制获得的编码序列以获得调制信号。 获得的调制信号经过相变并被发送。 多个编码方案至少包括第一编码方案和第二编码方案。 第一编码方案是具有用于通过使用第一奇偶校验矩阵将生成的第一码字形成为第一编码序列的第一编码率的编码方案。 第二编码方案是在删余处理之后获得的具有第二编码率的编码方案，用于通过使用不同于第一奇偶校验矩阵的第二奇偶校验矩阵对生成的第二码字执行删截处理来生成第二编码序列。 第一编码序列的比特数等于第二编码序列的比特数。

公开(公告)号：US20170048020A1

公开(公告)日：2017-02-16

申请号：US15284601

申请日：2016-10-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04L1/00 ,  H03M13/11 ,  H03M13/00 ,  H03M13/29

CPC classification number: H04L1/0041 ,  H03M13/1102 ,  H03M13/6362 ,  H03M13/6516 ,  H04L1/0057 ,  H04L1/0068

Abstract: One coding method is selected from a plurality of coding methods per data symbol group, an information sequence is encoded by using the selected coding method. The plurality of coding methods includes at least a first coding method and a second coding method. The first coding method is a coding method with a first coding rate for generating a first codeword as a first encoded sequence by using a first parity check matrix. The second coding method is a coding method with a second coding rate different from the first coding rate and obtained after puncturing processing, where a second encoded sequence is generated by performing the puncturing processing on a second codeword by using a second parity check matrix different from the first parity check matrix. A number of bits of the first encoded sequence is equal to a number of bits of the second encoded sequence.

Abstract translation: 从每个数据符号组的多个编码方法中选择一个编码方法，通过使用所选择的编码方法对信息序列进行编码。 多个编码方法至少包括第一编码方法和第二编码方法。 第一编码方法是具有第一编码率的编码方法，用于通过使用第一奇偶校验矩阵来生成第一码字作为第一编码序列。 第二编码方法是具有与第一编码率不同的第二编码率并且在删余处理之后获得的编码方法，其中通过使用不同于第二编码率的第二奇偶校验矩阵对第二码字执行删截处理来生成第二编码序列 第一个奇偶校验矩阵。 第一编码序列的比特数等于第二编码序列的比特数。

公开(公告)号：US20160233928A1

公开(公告)日：2016-08-11

申请号：US15011706

申请日：2016-02-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/046 ,  H04B7/0615 ,  H04B7/0682

Abstract: A transmission device comprising: a weighting circuity which, in operation, generates transmission signals of n streams (n is an integer of 3 or more) by weighting modulated signals of the n streams using a predetermined fixed precoding matrix; a phase changing circuity which, in operation, regularly changes each phase of a symbol series included in each of the transmission signals of the n streams; and a transmitter which, in operation, transmits the transmission signals of the n streams from different antennas, the phases of each of the transmission signals of the n streams being changed in each symbol, wherein the transmission signal of an i-th stream has an mi kind of phase change value yi(t) (i is an integer between 1 and n (inclusive), 0≦yi

Abstract translation: 一种发送装置，包括：加权电路，其通过使用预定的固定预编码矩阵对所述n个流的调制信号进行加权，所述加权电路在运行中产生n个流的传输信号（n为3以上的整数） 相位改变电路，其在运行时规则地改变包括在n个流的每个发送信号中的符号序列的每个相位; 以及发送器，其在工作中从不同的天线发送n个流的发送信号，在每个符号中改变n个流的每个发送信号的相位，其中第i个流的发送信号具有 相位变化值yi（t）（i是1和n（含）之间的整数，0≤yi<2π，并且在每个流中设置mi，t是0以上的整数，并且表示符号 时隙），并且相位改变电路在一个或多个u（u = m1×m2×...×mn）个符号周期中使用彼此不同的一组相位变化值yi（t）的所有模式来改变相位 每个符号。