公开(公告)号：US11362675B2

公开(公告)日：2022-06-14

申请号：US17150766

申请日：2021-01-15

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Choo Eng Yap

IPC: H03M13/00 ,  H03M13/11 ,  H04B7/0413 ,  H04L1/00 ,  H04L1/06 ,  H04L1/18 ,  H04L5/00 ,  H03M13/29

Abstract: In a multi-antenna communication system using LDPC codes, a simple method is used to effectively improve the received quality by performing a retransmittal of less data without restricting applicable LDPC codes. In a case of a non-retransmittal, a multi-antenna transmitting apparatus (100) transmits, from two antennas (114A,114B), LDPC encoded data formed by LDPC encoding blocks (102A,102B). In a case of a retransmittal, the multi-antenna transmitting apparatus (100) uses a transmission method, in which the diversity gain is higher than in the previous transmission, to transmit only a part of the LDPC encoded data as previously transmitted. For example, the only the part of the LDPC encoded data to be re-transmitted is transmitted from the single antenna (114A).

公开(公告)号：US10924135B2

公开(公告)日：2021-02-16

申请号：US16421624

申请日：2019-05-24

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Choo Eng Yap

IPC: H04L1/00 ,  H03M13/11 ,  H04B7/0413 ,  H04L1/06 ,  H04L1/18 ,  H04L5/00 ,  H03M13/29

Abstract: In a multi-antenna communication system using LDPC codes, a simple method is used to effectively improve the received quality by performing a retransmittal of less data without restricting applicable LDPC codes. In a case of a non-retransmittal, a multi-antenna transmitting apparatus transmits, from two antennas, LDPC encoded data formed by LDPC encoding blocks. In a case of a retransmittal, the multi-antenna transmitting apparatus uses a transmission method, in which the diversity gain is higher than in the previous transmission, to transmit only a part of the LDPC encoded data as previously transmitted. For example, the only the part of the LDPC encoded data to be re-transmitted is transmitted from the single antenna.

公开(公告)号：US20180069569A1

公开(公告)日：2018-03-08

申请号：US15808411

申请日：2017-11-09

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka MURAKAMI ,  Kiyotaka Kobayashi ,  Choo Eng Yap

IPC: H03M13/11 ,  H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04L1/06 ,  H03M13/29

CPC classification number: H03M13/1105 ,  H03M13/1102 ,  H03M13/1157 ,  H03M13/1174 ,  H03M13/1177 ,  H03M13/2909 ,  H04B7/0413 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/06 ,  H04L1/1816 ,  H04L1/1893 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0044

Abstract: In a multi-antenna communication system using LDPC codes, a simple method is used to effectively improve the received quality by performing a retransmittal of less data without restricting applicable LDPC codes. In a case of a non-retransmittal, a multi-antenna transmitting apparatus transmits, from two antennas, LDPC encoded data formed by LDPC encoding blocks. In a case of a retransmittal, the multi-antenna transmitting apparatus uses a transmission method, in which the diversity gain is higher than in the previous transmission, to transmit only a part of the LDPC encoded data as previously transmitted. For example, the only the part of the LDPC encoded data to be re-transmitted is transmitted from the single antenna.

公开(公告)号：US09847793B2

公开(公告)日：2017-12-19

申请号：US14968350

申请日：2015-12-14

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Choo Eng Yap

IPC: H03M13/00 ,  H03M13/11 ,  H04B7/0413 ,  H04L1/00 ,  H04L1/06 ,  H04L1/18 ,  H04L5/00 ,  H03M13/29

CPC classification number: H03M13/1105 ,  H03M13/1102 ,  H03M13/1157 ,  H03M13/1174 ,  H03M13/1177 ,  H03M13/2909 ,  H04B7/0413 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/06 ,  H04L1/1816 ,  H04L1/1893 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0044

Abstract: In a multi-antenna communication system using LDPC codes, a simple method is used to effectively improve the received quality by performing a retransmittal of less data without restricting applicable LDPC codes. In a case of a non-retransmittal, a multi-antenna transmitting apparatus transmits, from two antennas, LDPC encoded data formed by LDPC encoding blocks. In a case of a retransmittal, the multi-antenna transmitting apparatus uses a transmission method, in which the diversity gain is higher than in the previous transmission, to transmit only a part of the LDPC encoded data as previously transmitted. For example, the only the part of the LDPC encoded data to be re-transmitted is transmitted from the single antenna.

公开(公告)号：US10355710B2

公开(公告)日：2019-07-16

申请号：US15808411

申请日：2017-11-09

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Choo Eng Yap

IPC: H03M13/00 ,  H03M13/11 ,  H04B7/0413 ,  H04L1/00 ,  H04L1/06 ,  H04L1/18 ,  H04L5/00 ,  H03M13/29

Abstract: In a multi-antenna communication system using LDPC codes, a simple method is used to effectively improve the received quality by performing a retransmittal of less data without restricting applicable LDPC codes. In a case of a non-retransmittal, a multi-antenna transmitting apparatus transmits, from two antennas, LDPC encoded data formed by LDPC encoding blocks. In a case of a retransmittal, the multi-antenna transmitting apparatus uses a transmission method, in which the diversity gain is higher than in the previous transmission, to transmit only a part of the LDPC encoded data as previously transmitted. For example, the only the part of the LDPC encoded data to be re-transmitted is transmitted from the single antenna.

公开(公告)号：US09246518B2

公开(公告)日：2016-01-26

申请号：US14244579

申请日：2014-04-03

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Choo Eng Yap

IPC: H03M13/00 ,  H03M13/29 ,  H04B7/04 ,  H04L1/00 ,  H04L1/06 ,  H04L1/18 ,  H04L5/00 ,  H03M13/11

CPC classification number: H03M13/1105 ,  H03M13/1102 ,  H03M13/1157 ,  H03M13/1174 ,  H03M13/1177 ,  H03M13/2909 ,  H04B7/0413 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/06 ,  H04L1/1816 ,  H04L1/1893 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0044

Abstract: In a multi-antenna communication system using LDPC codes, a simple method is used to effectively improve the received quality by performing a retransmittal of less data without restricting applicable LDPC codes. In a case of a non-retransmittal, a multi-antenna transmitting apparatus transmits, from two antennas, LDPC encoded data formed by LDPC encoding blocks. In a case of a retransmittal, the multi-antenna transmitting apparatus uses a transmission method, in which the diversity gain is higher than in the previous transmission, to transmit only a part of the LDPC encoded data as previously transmitted. For example, the only the part of the LDPC encoded data to be re-transmitted is transmitted from the single antenna.

Abstract translation: 在使用LDPC码的多天线通信系统中，使用简单的方法通过在不限制可应用的LDPC码的情况下执行更少数据的重传来有效地提高接收质量。 在非重发的情况下，多天线发送装置从两个天线发送由LDPC编码块形成的LDPC编码数据。 在重传的情况下，多天线发送装置使用分集增益高于先前发送的发送方法，仅发送如前所述的LDPC编码数据的一部分。 例如，从单个天线发送仅重新发送的LDPC编码数据的一部分。