Communication system, communication device, communication method and program

摘要

Disclosed are a communication system, a communication device, a communication method, and a program all for preventing disconnection of communication during re-transmission in response to an automatic repeat request in a confirmation mode. The communication system is provided with a first communication device including data transmitting means and data re-transmitting means and a second communication device connected to the first communication device and including data receiving means for receiving data transmitted from the first communication device and data re-transmission requesting means for requesting re-transmission of data not normally received by the data receiving means. The data receiving means determines whether or not the re-transmission data requested by the data re-transmission requesting means will be re-transmitted from the first communication device.

主权项

1. A communication system, comprising:
a first communication device comprising a data transmitting unit and a data re-transmitting unit; and a second communication device connected to said first communication device and comprising: a data receiving unit that receives data transmitted from said first communication device; and a data re-transmission requesting unit that requests to transmit re-transmission data which said data receiving unit did not normally receive, wherein said data receiving unit determines whether or not the re-transmission data requested by said data re-transmission requesting unit is re-transmitted from said first communication, and wherein said first communication device further comprises re-transmission impossible information transmitting unit that transmits to said second communication device re-transmission impossible information in response to the request to transmit re-transmission data, and when said data receiving unit receives said re-transmission impossible information, said data receiving unit determines that it is impossible to re-transmit.