| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve or maintain transmission quality and to make a transmission speed high by dynamically performing the insertion of a synchronous code into frame data of a time-division multiplex system according to transmission quality. <P>SOLUTION: This base station 130 which communicates with a mobile terminal device 140 by radio using time slots based upon a time-division multiplex system includes: a slot connecting unit 310 which allocates a connection time slot generated by connecting a plurality of time slots in a frame to the mobile terminal device 140; a transmission quality detector 312 which detects transmission deviation as a difference in transmission quality between different areas in frame data of radio communication with the mobile terminal device; and a deviation adjusting unit 316 which inserts synchronous codes into the frame data when the transmission deviation exceeds a transmission deviation upper-limit value predetermined for each modulation system and removes synchronous codes from the frame data when the transmission deviation becomes smaller than a transmission deviation lower-limit value. <P>COPYRIGHT: (C)2008,JPO&INPIT |
