| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve demodulation accuracy by combining information frames in re-transmission without deteriorating re-transmission relaying efficiency from a relay station device in a communication system using a network coding (NC) technology. <P>SOLUTION: A communication system comprises a relay station device and a reception station device. The reception station device comprises a transmission and reception station information frame memory unit which has stored an information frame including an error. The reception station device receives a coded information frame which is network-coded by means of an information frame requested re-transmission and which the relay station device has transmitted responding to a re-transmission request, and a frame identifier corresponding to an information frame included in the coded information frame, and by using an information frame for decoding corresponding to the received frame identifier, network-decodes the information frame from the received coded information frame, reads out, from the reception station information frame memory unit, an information frame corresponding to the frame identifier of the decoded information frame, and combines the information frame with the decoded information frame. <P>COPYRIGHT: (C)2012,JPO&INPIT |
