Patent ID: 6947397

Claim:
A method for adaptive data transmission in a communication system which has a plurality of sending communicaiton means and receiving communication means using a shared channel and a dedicated channel, said method comprising the steps of: (a1) receiving in the receiving communication means data transmitted from the pluarlity of sending communicaiton means using the dedicate channel; (b1) when the data are received, obtaining an idle capacity which is not being used from the maximum transmission capacity which is already allocated to the plurality of sending communication means using the dedicated channel; and (c1) when the idle capacity is obtained, broadcasting shared channel information about the idle capacity to the plurality of sending communication means which use the shared channel, and later transmitting in the sending communication means the data according to the shared channel information, whereby when the plurality of sending communication means transmit the data by using the dedicated channel via variable transmission rate services, the variation rate of the transmission rates of the variable transmission rate data transmission services transmitted from the sending communicaiton means is controlled so that the idle transmission capacity can be forecasted for use in other service data transmission, wherein said step of (a1) receiving in one of the receiving communicaiotn means, when the plurality of sending communication means using the dedicated channel transmits the data via the variable transmission rate service, has the steps of: (a2) calculating the average movement value and standard movement deviation value of transmission data traffic according to unit time r about variable transmission rate service session subjected to transmission, in response to a data transmission request of a user; (b2) forecasting the traffic in the next unit time r+1 by using the calculated average movement value and standard movement deviation value; (c2) obtaining a control transmission rate via the forecasted data traffic, wherein the control transmission rate guarantees a transmission rate between the minimum transmission rate and the maximum transmission rate; and (d2) transmitting the data within the obtained control transmission rate.