公开(公告)号：US20080229168A1

公开(公告)日：2008-09-18

申请号：US11720046

申请日：2005-11-17

Applicant: Yutaka Murakami ,  Kiyotaka Kobayashi ,  Choo Eng Yap

Inventor： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Choo Eng Yap

IPC: H04L1/08 ,  H03M13/11 ,  G06F11/10 ,  G06F11/14

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 (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).

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。 在非重传的情况下，多天线发送装置（100A）从两个天线（114A，114B）发送由LDPC编码块（102A，102B）形成的LDPC编码数据。 在重传的情况下，多天线发送装置（100）使用其中分集增益高于先前传输中的传输方法来仅传送如先前发送的一部分LDPC编码数据。 例如，从单个天线（114A）发送仅重新发送的LDPC编码数据的一部分。