Patent ID: 7525916

Claim:
An adaptive transmission rate control process for being performed by a base station or a terminal belonging to the base station in a radio burst signal transmission system, said process comprising the steps of: determining, in a first station, from a reception burst signal received from a second station, an average value and a variance value of time dependent variations of an error of a propagation path function between said first station and said second station, and a burst signal length of said reception burst signal, and determining a pointer to request switching from a first control process for optimizing the number of bits added per symbol depending on the probability of successful reception of a successful reception indication signal to a second control process for divisionally sending a transmission burst signal, based on the average value, the variance value, and the burst signal length which are thus determined; if said first station detects an data error of said reception burst signal and detects that said pointer has become larger than a predetermined first value, sending a first request to switch from said first control process to said second control process, from said first station to said second station; if said first station detects no data error of said reception burst signal and detects that said pointer has become smaller than a predetermined second value, sending a second request to switch from said second control process,from said first station to said second station; if said second station receives said first request from said first station and also detects that the burst signal length of the transmission burst signal has become larger than a predetermined third value, switching from said first control process to said second control process and sending said transmission burst signal from said second station to said first station; and if said second station receives said second request from said first station, switching from said second control process to said first control process and sending said transmission burst signal from said second station to said first station.