| 摘要 |
PROBLEM TO BE SOLVED: To efficiently execute resending control by leaving transmission data in a buffer for a fixed time after transmission and requiring resending to a transmission terminal when a reception terminal can not correctly receive data. SOLUTION: In a radio adapter 402, a radio part 403 communicates with a centralized control station and a radio private telephone equipment and data assembled to be a frame by a channel codec 408 is transmitted to the centralized control station and a confronting terminal through the radio part 403. An error correction processing part 409 inserts an error correction code in communication data at the time of transmission and corrects an error position and an erroneous pattern by arithmetic processing at the time of reception. When the error correction processing part 409 can not correct data, a resending control part 412 prepares a resending request frame and executes resending processing. A transmission counter 413 and a reception counter 414 check the transmission and reception of data. |
