公开(公告)号：US20240162919A1

公开(公告)日：2024-05-16

申请号：US18414909

申请日：2024-01-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yutaka MURAKAMI ,  Tomohiro Kimura ,  Mikihiro Ouchi

IPC: H03M13/25 ,  H03M13/00 ,  H03M13/11 ,  H03M13/19 ,  H03M13/35 ,  H04L1/00

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.

公开(公告)号：US10236914B2

公开(公告)日：2019-03-19

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: H04B7/06 ,  H04B7/08 ,  H04L1/00 ,  H03M13/25 ,  H03M13/19 ,  H03M13/11 ,  H03M13/35 ,  H03M13/00

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.

公开(公告)号：US09042365B2

公开(公告)日：2015-05-26

申请号：US14325998

申请日：2014-07-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshinobu Matsumura ,  Tomohiro Kimura ,  Mikihiro Ouchi

IPC: H04J1/00 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2647 ,  H04L5/0048 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2649 ,  H04L27/2662 ,  H04L27/2675 ,  H04L27/2698

Abstract: An OFDM transmitter and an OFDM receiver respectively transmit and receive N (N≧2, N is an integer) control symbols. For each control symbol, a guard interval time-domain signal is, for example, identical to a signal obtained by frequency-shifting at least a portion of a useful symbol time-domain signal by an amount different from any other symbol, or to a signal obtained by frequency-shifting one or both of a portion and a span of a useful symbol interval time-domain signal different from any other symbol by a predetermined amount.

Abstract translation: OFDM发射机和OFDM接收机分别发送和接收N（N≥2，N是整数）控制符号。 对于每个控制符号，保护间隔时域信号例如与通过将有用符号时域信号的至少一部分频移到不同于任何其它符号的量而获得的信号相同，或者与 通过将与任何其他符号不同的有用符号间隔时域信号的一部分和跨度中的一个或两个频移位预定量而获得的信号。